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BRAKE TESTING

Subclass of:

073 - Measuring and testing

Patent class list (only not empty are listed)

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Class / Patent application numberDescriptionNumber of patent applications / Date published
073121000BRAKE TESTING70
20080202228Cylinder Lift Detection Device for Compressed Air Disc Brakes - A cylinder lift detection device for compressed-air disk brakes includes a sensor for detecting the cylinder lift, a power source for feeding the sensor, an actuating device which is mounted between the sensor and the power source and is used to switch on the sensor, and a functional display that is connected to the sensor and displays the operative or defective state of the brakes.08-28-2008
20080236268APPARATUS AND METHODS FOR DETERMINING A PREDICTED VEHICLE BRAKING OPERATION - Apparatus for determining a predicted vehicle braking operation is provided. The apparatus includes a test tire, a brake associated with the test tire, and an actuator operably connected to the test tire and configured to selectively apply a representative vehicle force to the test tire. The apparatus further includes a controller operably connected to the brake and configured to apply a representative vehicle braking algorithm to the brake. The apparatus also includes a sensor associated with the test tire and configured to provide feedback for determining a predicted vehicle braking operation. Aspects of the invention further include methods of using the apparatus.10-02-2008
20080236269Brake Pad Prognosis System - A method for providing an estimate of brake pad thickness. The method employs fusion of sensors, if used, and driver brake modeling to predict the vehicle brake pad life. An algorithm is employed that uses various inputs, such as brake pad friction material properties, brake pad cooling rate, brake temperature, vehicle mass, road grade, weight distribution, brake pressure, brake energy, braking power, etc. to provide the estimation. The method calculates brake work using total work minus losses, such as aerodynamic drag resistance, engine braking and/or braking power as braking torque times velocity divided by rolling resistance to determine the brake rotor and lining temperature. The method then uses the brake temperature to determine the brake pad wear, where the wear is accumulated for each braking event. A brake pad sensor can be included to provide one or more indications of brake pad thickness from which the estimation can be revised.10-02-2008
20090000369In-System Test For Electromechanical Brake Safety Redundancy - A test unit is electrically coupled between a motion controller and each of first and second redundant brakes. The test unit is responsive to the motion controller for automatically selecting one of the brakes to be tested. A microcontroller receives a signal from the motion controller that identifies one of the redundant brakes for activation, or deactivation, by an associated microcontroller output. The microcontroller outputs may be coupled respectively to activation terminals of respective brake switches connected in parallel to a brake activation voltage.01-01-2009
20090038388Pressure sensor for vehicle and brake fluid pressure control apparatus for vehicle - Disclosed is a pressure sensor 02-12-2009
20090044614Method for Recognizing the Saturation Point of a Vacuum Brake Booster - A device for determining the saturation point of a vacuum brake booster having a vacuum chamber and a working chamber that are separated from one another by a membrane. The reaching of the saturation point can be recognized simply and precisely if the vacuum prevailing in the vacuum chamber is measured using a pressure sensor, and the output signal of the pressure sensor is evaluated by an electronic evaluation system that calculates the saturation point using a mathematical function, taking into account only the pressure prevailing in the vacuum chamber.02-19-2009
20090049901BRAKE SYSTEM TEST DEVICE AND BRAKE SYSTEM TEST METHOD OF TWO-WHEELED MOTOR VEHICLE - Wheels of a two-wheeled motor vehicle are supported by support rollers corresponding to each wheel, respectively, and an antilock brake system is operated for each wheel. Measuring means 02-26-2009
20090217747Single Car Trainline Tester - A test device includes a trainline connector for connecting the test device to a car trainline to which the electropneumatic brake device is connected and includes a power port to receive power for the trainline at a first voltage. A power switch selectively connects the power port to the trainline connector. A test switch selectively connects a test voltage smaller than the first voltage to the trainline connector. A sensor senses an electrical parameter of the trainline. A controller a) initially controls the power switch to disconnect the power port from the trainline connector, b) subsequently controls the test switch to connect the test voltage to the trainline connector and c) if the sensor senses an electrical parameter indicative of an acceptable trainline, controls the test switch to disconnect the test voltage from the trainline connector and controlling the power switch to connect the power port to the trainline connector.09-03-2009
20090217748BRAKE WEAR MEASUREMENT APPARATUS AND METHOD - A brake wear measurement apparatus for use on a brake assembly equipped with a wear pin having a plunger slidably mounted in the plunger sleeve having a first end and second end and wherein when the brake wear measurement apparatus is placed over the wear pin, the wear pin contacts the plunger first end, and moves the plunger within the plunger sleeve to a retracted position corresponding to a retraction distance delta, and wherein the retraction distance delta corresponds to a wear pin exposed height indicating an amount of brake wear. A locking mechanism for locking the plunger in the retracted position may be provided. A brake wear correlation program whereby the input of a brake part number, a plunger retraction distance delta, and a number of performed landings will result in an output of an estimated number of remaining landings may also be provided.09-03-2009
20090255329Method and System for Determining Brake Shoe Effectiveness - A system for determining brake shoe effectiveness of a braking arrangement of a train during operation of the train including at least one brake database including braking data and at least one train database including train data. A control system is in communication with the at least one brake database and the at least one train database, and the control system dynamically determines brake shoe effectiveness data based upon the braking data and the train data, where the brake shoe effectiveness data includes the ability of the braking arrangement to retard the train to a specified level.10-15-2009
20090277261Apparatuses, Methods and Systems for Parking Brake Tensioning Fixture - The present invention provides a parking brake tensioning apparatus, method, and system. Generally described, the device is for adjusting the tension cable of a parking brake in a vehicle. The device has an inner housing for receiving the handle of the parking brake. Also, the device has a deformable member attached to the housing, and is preloaded with a predetermined load. The device further has a force probe, or rod, having a first end connected to the deformable member and a second end in contact with a component of the vehicle. In addition, the device has a switch for generating a control signal when a predefined force value is applied to the deformable member by adjusting the tension of the tension cable through an adjustment tool. Furthermore, the device has a relay for transmitting the control signal to the adjustment tool once the predefined force value is reached, thus disabling the adjustment tool. Other embodiments are also claimed and described.11-12-2009
20090293601METHOD FOR TESTING A SYSTEM FOR THE BRAKING OF THE AUXILIARY STARTING OF A CABLE TRANSPORT INSTALLATION - The invention relates to a method for testing a system for the braking or the auxiliary starting of a cable transport installation driving at least one vehicle, the cable being driven by a pulley cooperating with motor means, the testing method including at least a phase of testing said system during which, from a stabilized rating of the installation: 12-03-2009
20090320579Method and device for measuring an effective normal force on a disk brake - A method and a device for measuring a normal force affecting a disk brake that is used particularly in motor vehicles. In order to further develop a device for measuring an effective normal force so as to significantly decrease the additional mounting space required in the area of a disk brake and reduce sensitivity to thermal influences, a shearing movement of a part of the disk brake relative to a reference is detected by a sensor such that a test signal-processing logic circuit can draw conclusions about an actually effective normal force based on a sensor test signal.12-31-2009
20100058850METHOD TO TEST A BRAKE OF A ROBOT - In a method to test a brake of a robot that has a number of axes, an actuator associated with one of the axes, a brake associated with this axis that is set up to at least reduce a movement of this axis, and a torque sensor associated with this axis, which determines the torque acting on this axis. The brake is activated, the torque acting on the axis is determined by the torque sensor given an activated brake, and the functional capability of the brake is assessed in a processor based on an evaluation of the torque determined by the torque sensor.03-11-2010
20100064788DEVICE COMPRISING A SENSOR AND COUPLING MEANS - The invention relates to a device which comprises a sensor or actuator and coupling means for electrically and mechanically coupling the sensor or actuator. The coupling means comprise an electrical single conductor (03-18-2010
20100095754BRAKE POSITION SENSOR UNIT - A brake position sensor unit includes a unitary brake shaft that transmits braking torque to a article to be slowed, connects directly to a brake unit, connects to a resolver and has a plurality of planetary gears rotating thereabout to activate a sensor when the brake unit is set.04-22-2010
20100154527Elevator Brake Condition Testing06-24-2010
20100275682Freefall arrestor - The invention relates to a safety device for a crosshead of a decoking plant arranged by means of a carrying device to be liftable and lowerable on profiles of a frame above a drum adapted to receive material, such as coke, and guided on guide rails of the profiles by means of rolls, and carried by a cable of a winch slung around return pulleys at the top of the frame and around a carrying pulley rotatably supported at the top end of the crosshead; and equipped with brakes for stopping the crosshead in an emergency, when the carrying device fails, and for intercepting the crosshead and fixing it on the guide rails or on the profiles. For a safety device, a test apparatus is provided for testing the brakes on site, comprising a carrying device, such as a brace, attachable on the frame, on which the crosshead is mountable for simulating a free fall of the same by means of a release device, and an arrestor device for the crosshead releasably attachable on the frame at a distance below the brace.11-04-2010
20100288038MEASURING DEVICE FOR DETERMINING THE MATERIAL PARAMETERS OF SOLID MATERIAL SAMPLES - A measuring unit for determining the material parameters of a solid material sample of a substance includes a sample holder for accommodating the material sample to be tested, an actuator for generating an excitation vibration, a measuring unit and a measured value analysis unit, the actuator including at least one piezoelectric element to be electrically excited, and the actuator and the sample holder having a common longitudinal axis.11-18-2010
20110113874BRAKE PEDAL STROKE SENSOR - A brake pedal stroke sensor apparatus may include a frame, a hinge shaft fixed to the frame, a pedal arm pivotally coupled to the hinge shaft and rotating with respect to the hinge shaft, an angle sensor that is coaxially aligned to the hinge shaft and fixed to the frame, a sensor lever connected to a rotational shaft of the angle sensor and extending with a predetermined length, and a drive pin formed to the hinge shaft in a predetermined distance from a rotational axis of the hinge shaft and engaged to a distal end portion of the sensor lever so as to transmit change of a rotary angle of the pedal arm to the angle sensor in accordance with a rotation of the pedal arm.05-19-2011
20110154893Air brake line airflow control device with wireless controller - A system for testing the air brake line of a train consist includes an airflow control device connected between the air brake line and a source of compressed air in a train yard. The system further includes a portable handheld device and an end-of-train pressure monitor that are able to wirelessly communicate with the airflow control device by means of a repeater. An airflow sensor in the airflow control device is used while charging the air brake line and also to perform an Air Flow Method of brake line testing.06-30-2011
20110214496SYSTEMS AND METHODS FOR BUILT IN TEST EQUIPMENT FOR A BRAKE CONTROL SYSTEM - A method is disclosed that comprises severing an I/O channel between a brake system controller and an aircraft component; sending a test signal to the brake system controller; receiving, from the brake system controller, a feedback signal to the test signal; and determining an appropriateness of the feedback signal. A system is disclosed that comprises a brake system controller wrapped in a BITE region, wherein the BITE region comprises a testing module, a safety interlock region having an I/O channel between the brake system controller and another system, and a testing module capable of sending a test signal to the brake system controller.09-08-2011
20110219863Brake Test Arrangement - A brake test method is disclosed for use in testing the operation of a brake of a drive system comprising a motor operable to drive a pair of drive shaft arrangements for rotation, an inboard brake associated with the motor, a first outboard brake associated with an end part of a first one of the drive shaft arrangements, and first and second outboard position sensors associated with the end parts of respective ones of the drive shaft arrangements, the method comprising the steps of applying the first outboard brake, operating the motor to apply a torque to the first drive shaft arrangement, applying the inboard brake, de-activating the motor, and using the output of the second outboard position sensor in determining an operating status of the inboard brake and/or first outboard brake.09-15-2011
20120060597APPARATUS AND METHOD FOR TESTING BRAKING PERFORMANCE - Disclosed are an apparatus and method for testing braking performance. The apparatus of the disclosed invention comprises: a driving unit which generates power; a test unit driven by the driving unit; and a control unit which controls the operation of a braking apparatus to generate a brake force on the test unit and to check braking performance. The present invention uses a rope unit moving at a speed for inducing a braking operation by the rotation of driving sheaves spaced apart from each other, rather than testing braking performance in an expensive elevator test tower, thereby preventing the possible dangers of tests conducted in said test tower. Further, the present invention controls loading capacity simply by controlling the loads of the driving unit to enable easy testing.03-15-2012
20120111101Device for Brake Pad Wear Monitoring of a Brake - A system for monitoring brake pad wear of a brake, including an apparatus for monitoring brake pad wear of a first type (total wear monitoring) and an apparatus for monitoring brake pad wear of a second type (final-position wear monitoring). The apparatus of the first type and the apparatus of the second type are connected by way of a connection element. The connection element is created for expanding the functionality of a device for brake pad wear monitoring of a brake, and is designed to establish a connection expanding the functionality of the device between an apparatus extending the functionality and a device whose functionality is to be expanded.05-10-2012
20120204631BRAKE TOOLS AND RELATED METHODS - A brake tool for inspecting a brake shoe having an anchor end and a cam end includes a first portion adapted to engage with an anchor aperture in the anchor end of the brake shoe, the first portion defining a first portion axis and having a length along the first portion axis sufficient to engage substantially an entire width of the anchor aperture; a second portion adapted to engage with a cam aperture in the cam end of the brake shoe, the second portion defining a second portion axis and having a length along the second portion axis sufficient to engage substantially an entire width of the cam aperture; and a connecting member connecting the first portion and the second portion with the first portion axis and the second portion axis substantially parallel to one another.08-16-2012
20120204632BRAKE TEST STAND - A brake test stand for testing vehicle brakes and for determining the brake forces acting on the respective vehicle wheel. The brake test stand comprises first and second pairs of rollers for positioning the two wheels mounted on a common axis of a vehicle thereon, wherein the rollers of each pair of rollers are arranged opposite to each other and the pairs of rollers are provided side by side. A control unit controls the test stand. First sensing devices are positioned respectively below and between the rollers of each pair of rollers for sensing the pattern of the running surface of each of the tires of the wheels mounted on the common axis. A processing and calculation unit processes the data obtained by the first sensing devices for calculating tire conditions based on a correlation of the data of the coaxially mounted tires.08-16-2012
20120222475NON-CONTACT SENSOR SYSTEM AND METHOD FOR DISPLACEMENT DETERMINATION - A non-contact sensor system is provided that comprises a first sensor element and a rotary member disposed proximate the first sensor element without physically contacting the first sensor element. The rotary member may be configured to he rotated about an axis Y by a shaft configured to pass through the rotary member along the axis Y at a value X. The non-con act sensor system further comprises a second sensor element disposed on the rotary member proximate the first sensor element without physically contacting the first sensor element, and the first sensor element and the second sensor element may be operatively coupled to facilitate sensing the value X.09-06-2012
20120227479TESTING A SPEED LIMITING SYSTEM OF AN ELEVATOR INSTALLATION - In a method or a test device for testing a speed limiting system of an elevator installation, in which speed limiting system in normal operation on occurrence of an impermissible movement state of an elevator cage a cage brake device is activated in that a limiter traction means connected with a trigger mechanism of the cage brake device is braked by a speed limiter, whereby the trigger mechanism of the cage brake device is actuated against a trigger resistance force, the limiter traction means is, when the test is performed, operatively connected with the trigger mechanism by way of a test device, wherein the test device has the effect that for overcoming the trigger resistance force of the trigger mechanism a greater traction force is required in the limiter traction means than when the limiter traction means is directly connected with the trigger mechanism.09-13-2012
20130008245vehicle brake testing device and a method of testing a vehicle brake01-10-2013
20130055805MEASURING TOOL FOR VEHICLE PEDALS - A tool measures the vertical distance and lateral distance between a brake pedal pad and an accelerator pedal pad. A base plate lies atop the brake pedal pad. A first measuring plate is mounted on the base plate for movement laterally toward and away from the accelerator pedal pad. A second measuring plate is mounted on the first measuring plate for movement laterally with the first measuring plate to engage a lateral edge of the accelerator pedal pad and for movement vertically to engage with a top surface of the accelerator pedal pad. First measuring indicia provided on the base plate and the first measuring plate reads the lateral distance between the brake pedal pad and the accelerator pedal pad. And a second measuring indicia provided on the first measuring plate and the second measuring plate reads the vertical height between the brake pedal pad and the accelerator pedal pad.03-07-2013
20130055806Brake Test Arrangement - A brake test method is disclosed for use in testing the operation of a brake of a drive system comprising a motor operable to drive a pair of drive shaft arrangements for rotation, an inboard brake associated with the motor, a first outboard brake associated with an end part of a first one of the drive shaft arrangements, and first and second outboard position sensors associated with the end parts of respective ones of the drive shaft arrangements, the method comprising the steps of applying the first outboard brake, operating the motor to apply a torque to the first drive shaft arrangement, applying the inboard brake, dc-activating the motor, and using the output of the second outboard position sensor in determining an operating status of the inboard brake and/or first outboard brake.03-07-2013
20130125637MEASUREMENT DEVICE FOR CARRYING OUT A BRAKE TEST IN A RAIL VEHICLE - A mobile measurement device for carrying out a brake test in a rail vehicle, in particular having a pneumatic brake system on which are formed externally accessible measurement ports for pressure sensors whose electric measurement signal is processed by a mobile electronic measurement unit which is connected to the sensors locally thereto, which measurement unit is provided with an input for control and with a display for a user dialog and for displaying measurement results, wherein the input and the display for the electronic measurement unit are arranged in a portable control end unit, arranged separately from the electronic measurement unit, for remote control and for storable outputting of measurement results, wherein the electronic measurement unit and the control end unit communicate bidirectionally with one another via a respectively associated radio interface.05-23-2013
20130139580Brake Wear Sensor of a Disc Brake - A brake wear sensor of a disc brake includes a sensor unit, a gearbox cooperating with the sensor unit, and a central drive element which is engaged with the gearbox for an input variable or characteristic variable associated with brake wear. The brake wear sensor also includes at least one additional input for a further input variable or characteristic variable.06-06-2013
20130145833SYSTEMS AND METHODS FOR BUILT IN TEST EQUIPMENT FOR A BRAKE CONTROL SYSTEM - A method is disclosed that comprises severing an I/O channel between a brake system controller and an aircraft component; sending a test signal to the brake system controller; receiving, from the brake system controller, a feedback signal to the test signal; and determining an appropriateness of the feedback signal. A system is disclosed that comprises a brake system controller wrapped in a BITE region, wherein the BITE region comprises a testing module, a safety interlock region having an I/O channel between the brake system controller and another system, and a testing module capable of sending a test signal to the brake system controller.06-13-2013
20130174656Tell-tale brake pad - A brake pad includes a tell-tale substance at the safe-limit thickness of the brake friction. Tell-tale additives may include: fluorescent mineral, colorant, reflective powder, odorant, magnetic or any other easily detectable material. The tell-tale may be added to existing designs of brakes or included on the plate for supply to the brake manufacturer. Dust from the tell-tale substance appears in the ambient when the brakes need to be replaced. Brake evaluation can thus be conducted quickly and easily from outside the vehicle when it is stopped by drivers, operators and safety authorities.07-11-2013
20130186193System and Method for Testing Railroad Brake Control Valves - A system for testing a railroad brake control valve includes an operating portion configured to receive operating information from a railroad brake control valve, a processing portion connected to the operating portion, an adaptor configured to engage a receiver of a pipe bracket, and, an information reader configured to obtain valve identification information from an information source. The processing portion receives the operating information from the operating portion. The adapter is connected to the operating portion.07-25-2013
20130205881Sensor Module for a Master Cylinder - A sensor module for use with a master cylinder of a brake system is described, wherein the master cylinder has an input-side activation element and an underpressure region for communicating with an underpressure brake booster. The sensor module comprises an underpressure sensor for detecting an underpressure in the underpressure region of the master cylinder as well as at least one further sensor for detecting a signal transmitter which is rigidly coupled to the activation element. The underpressure sensor and the at least one further sensor are accommodated in a housing of the sensor module. An opening in the housing permits communication between the underpressure sensor and the underpressure region of the master cylinder.08-15-2013
20130228009BRAKE PAD WEAR DETECTION SYSTEM AND METHOD - Systems and methods to determine brake pad wear are provided. A linear enclosure may include an opening and a cap proximate the opening. The cap includes a cap surface. A slide bolt may be configured to move in a first direction within the linear enclosure. A shaft may be in axial alignment with the slide bolt. A biasing mechanism may bias the shaft in the first direction towards the slide bolt. Sensor circuitry may generate a first signal indicative of brake pad wear in response to movement of the shaft.09-05-2013
20130255366Brake Monitoring Device And Components Associated Therewith - A monitoring device for detecting a value indicative of the actuation stroke and/or release stroke of a thrust element of a brake actuating mechanism, the thrust element being actuated by a lever of the brake actuating mechanism, including a sensor for sensing variations in a physical property of at least one part of the brake actuating mechanism, whereby the sensor and the part of the brake actuating mechanism are arranged so that by the relative movement between the part of the brake actuating mechanism and the sensor repeated variations in the physical property along a path of the relative movement are created and sensed. The path is formed between the lever and a stationary part being adjacent to the lever. The invention is directed both to drum brakes and to disc brakes.10-03-2013
20140090462METHOD FOR CIRCUIT SEPARATION TESTING IN A DOUBLE GEARWHEEL PUMP - A method for circuit separation testing in a double gearwheel pump having two gearwheel pumps includes charging one of the two gearwheel pumps with pressure and measuring the pressure build-up in the charged gearwheel pump and/or the pressure-build up in the other gearwheel pump. The pressure build-up is preferably realized by the gearwheel pump itself. The gearwheel pumps have a common pump shaft and are preferably configured as hydraulic pumps of a hydraulic vehicle brake system with slip control. The method detects any leak at the leadthrough of the pump shaft through a partition wall between the two gearwheel pumps.04-03-2014
20150047426MONITORING OF BRAKE - The monitoring of a brake is disclosed. The brake includes first and second braking surfaces and a magnetizing device arranged to move the braking surfaces to an open state, in which the braking surfaces are separated from each other, and to a closed state, in which the braking surfaces are connected to each other. During the monitoring of the brake, the time is measured that elapses from the change in the magnetic field caused by the magnetizing device to the shift of the braking surfaces from one state to another.02-19-2015
20150059460METHOD FOR MEASURING OPENING AND CLOSING DELAY TIME OF ELEVATOR BRAKE - Disclosed is a method for measuring opening and closing delay time of elevator brake, the method including outputting, by a brake signal output unit, a brake signal, receiving, by a brake signal checking unit, the brake signal and determining whether the brake signal is an opening signal or a closing signal to output an opening/closing determination signal, receiving, by a brake counter unit, the opening/closing determination signal, and starting a count for measuring a brake opening time or a brake closing time to accumulate and output counted value, determining, by a motor drive checking unit, whether a motor configured to drive an elevator is driven upon receipt of the counted values and outputting a drive determination signal, and receiving, by a brake opening/closing delay computation unit, the drive determination signal and the counted value to compute a brake opening/closing delay time.03-05-2015
20150090021BRAKE ACTUATION SENSOR DEVICE FOR A VEHICLE BRAKE SYSTEM AND METHOD FOR MOUNTING A BRAKE ACTUATION SENSOR DEVICE ON A VEHICLE BRAKE SYSTEM - A brake actuation sensor device is described for a brake system of a vehicle having a strain and/or compression gage which is reversibly variable in its extension, whereby at least one electrical property is able to be changed, and an evaluation device, by which at least one electrical variable is able to be ascertained with respect to the changeable electrical property, and, taking into account the at least one ascertained electrical variable, an evaluation variable is able to be determined with respect to a brake actuating force, the strain and/or compression gage being additionally developed so that the strain and/or compression gage is able to be situated in direct or indirect contact with a brake booster housing device in such a way that a force exerted on the brake booster housing device causes a mechanical stress in the strain and/or compression gage. Furthermore, a method is described for mounting a brake actuation sensor device of a brake system of a vehicle.04-02-2015
20150128689BRAKE MANUFACTURER IDENTIFICATION SYSTEM AND METHOD - Systems and methods for identification of brake suppliers and vehicle models based on electrical resistance of the brake control unit are disclosed herein. Based on calculated values, both the brake supplier and model of vehicle can be determined.05-14-2015
20160052502AIRCRAFT BRAKE SYSTEM TESTING METHODS - Methods for testing the operation of an aircraft braking system utilize the steps of applying a predetermined electrical energy level to an electromechanical actuator attached to a brake assembly, followed by discontinuing electrical energy to the electromechanical actuator. In some test methods, an actuation level of the electromechanical actuator is determined and used to evaluate braking performance. In other tests, a voltage generated by an electric motor in an actuator is measured and used to evaluate braking performance.02-25-2016
20160076956Brake Force Sensor Arrangement for a Brake Unit - A brake force sensor arrangement for a brake unit includes a brake unit including a brake force application member; and a strain gage positioned on the brake force application member. The strain gage may be configured to measure the stress, strain, or stress and strain of the brake force application member. The stress, strain, or stress and strain of the brake force application member may be proportional to the brake force applied by the brake unit.03-17-2016
20160123824Full Load Brake Torque Inspection Method - A brake torque inspection method to a device having a drive machine and a driven component operatively connected to the drive machine is disclosed. The method comprises applying a brake to the driven component, and using a torque wrench at a shaft of the drive machine to determine the brake torque.05-05-2016
20160138987SYSTEM AND ELECTRONIC METHOD FOR CHECKING THE CORRECT OPERATION OF BRAKING DEVICES - System for checking the correct operation of braking devices on a test stand for industrial screwdrivers comprising a plurality of hydraulic brakes (F), to which the screwdriver is associated with, suitably controlled by a hydraulic circuit comprising a pump (P), a pressure regulating valve (VP). Each brake is provided with external measurement transducers (TR) connected to an electronic control board (SP). An electronic processor (U) that communicates with such board and controls such hydraulic circuit, such pump and such valve, comprises a suitable control programme stored therein.05-19-2016
073122000 Slidable platform 1
20160195444A SYSTEM FOR MEASURING THE BRAKING FORCE OF A VEHICLE07-07-2016
073123000 Roller or belt wheel support 2
20100058851VEHICLE TESTING ASSEMBLY - A compact, modular and versatile vehicle testing assembly for testing at least the brakes of an assembled vehicle comprises a pair of rollers adapted to support a tire of a tire and wheel assembly of a vehicle positioned on the testing assembly, with the pair of rollers being moveable relative to one another to alter the spacing there between. A drive system is connected to one of the rollers to operate as a drive roller for selectively imparting rotational motion to a tire of a vehicle tire and wheel assembly, with the other roller comprising a freewheeling roller to which rotational motion is imparted by a vehicle tire. A brake member is engageable with the freewheeling roller to selectively inhibit rotation of the freewheeling roller.03-11-2010
20120222476PLASTIC ROLLER FOR A MOTOR VEHICLE BRAKE TEST BENCH AND SUCH A BRAKE TEST BENCH - The invention concerns a roller for a motor vehicle brake test bench comprising a roller body (09-06-2012
073129000 Vehicle installation 6
20090183561LOAD PIN BRAKE CELL APPARATUS - A load pin brake cell apparatus includes a load pin element that can be machined with a pair of external grooves in order to create independent load locations. A sleeve can be installed over the load pin element and can be welded at each edge of the grooves to relocate the pair of grooves to interior of the load pin element. The sleeve and the load pin act as one homogenous component to ensure a predictable and total transfer of stress and strain to a strain gauge located within the load pin. The ratio of a cross-sectional area between the sleeve and the load pin can be kept to a minimum in order to minimize the non-linearity due to bending stresses. The sleeve wall preferably possesses a sufficient thickness to prevent yielding at the grooves.07-23-2009
20140245824Wear Sensor - An assembly (09-04-2014
20140352417DEVICE FOR MEASURING UNDULATION OF BRAKE DISC IN RAILWAY WHEEL WITH BRAKE DISCS - A device for measuring undulation of a brake disc in a railway wheel with brake discs includes a wheel support supporting a hub's bore of the railway wheel; a first displacement gauge for measuring a height displacement of the brake disc frictional surface for one round to follow rotation of the wheel support; and a second displacement gauge for measuring a height displacement of a railway wheel rim surface for one round to follow rotation of the wheel support. A computing unit calculates a difference between maximum and minimum values of the height displacement of the frictional surface by acquiring measurement data from the first displacement gauge, calculates a difference between the maximum and minimum values of the height displacement of the rim's surface by acquiring measurement data from the second displacement gauge, and derives a difference between the both calculated differences as brake disc undulation.12-04-2014
20150027214DIFFERENTIAL TRAVEL SENSOR FOR A BRAKING SYSTEM OF A VEHICLE AND METHOD FOR ASCERTAINING A DIFFERENTIAL TRAVEL - A differential travel sensor for a braking system of a vehicle includes: a field generation component, with the aid of which a first electrical and/or magnetic field having a predefined intensity distribution is generated in a spatial axis system fixedly definable with respect to a first body which is a driver brake force transmission component or an actuator force transmission component; and a sensor unit detecting at least one intensity variable of a second electrical and/or magnetic field generated due to an interaction of the first electrical and/or magnetic field with a second body, the second body being different from the first body and being the driver brake force transmission component or the actuator force transmission component.01-29-2015
20150033839MAIN BRAKE CYLINDER HAVING A DEVICE FOR THE CONTACTLESS MONITORING OF THE POSITION AND MOVEMENT OF A LINEARLY MOVABLE PISTON - A main brake cylinder, for use within an electronic braking system for motor vehicles, having a device for contactless monitoring of a position of a piston that can be linearly moved along a piston axis. The device includes a movable element and a sensor unit. The sensor unit is fixedly arranged on a housing of the main brake cylinder and is connected to an electronic evaluation unit for processing signals from the device. According to the invention, in order to further increase function precision, to lower manufacturing expenditure, number of components, and costs, to reduce overall length, and to improve calibration options, a magnetic field is realized such as to be emittable from the sensor unit, and a yoke is dedicated to the piston for position-dependently changing the magnetic field such that said change can be detected by the sensor unit.02-05-2015
20150354652BRAKE SENSOR - A brake sensor and method of use, the brake sensor having a housing and a biased displacement member that extends from the housing into a brake pack assembly. Displacement of the displacement member is measured using a sensor which indicates the amount of wear of brake pads within the brake pack assembly.12-10-2015
073130000 Single wheel rotating and resistance measuring means 1
20130233065BRAKE MOUNTING, APPARATUS AND METHOD FOR DETERMINING A MEASUREMENT VARIABLE FOR A BRAKE FORCE OR FRICTIONAL FORCE ACTING ON A DISK BRAKE - A location-determining device in a motor vehicle having at least one receiver device for receiving position signals and time signals for a multiplicity of satellites assigned to a global navigation system and a location-calculating module for calculating location information based on received position data and time data. The location-determining device has at least one receiver device structurally integrated into the housing of an optical sensor unit, wherein the housing is arranged in a passenger compartment in a region of an upper edge of a windscreen, and wherein the housing does not have more than a single connection to a vehicle data bus and not more than a single connection to a vehicle power supply.09-12-2013
073132000 Brake depressor with measuring means 11
20080196491INTEGRATED PRESSURE SENSOR WITH A HIGH FULL-SCALE VALUE - In an integrated pressure sensor with a high full-scale value, a monolithic body of semiconductor material has a first and a second main surface, opposite and separated by a substantially uniform distance. The monolithic body has a bulk region, having a sensitive portion next to the first main surface, upon which pressure acts. A first piezoresistive detection element is integrated in the sensitive portion and has a variable resistance as a function of the pressure. The bulk region is a solid and compact region and has a thickness substantially equal to the distance.08-21-2008
20090056432REMOTELY OPERATED BRAKE TESTER AND METHOD OF TESTING - A brake tester and method testing brakes uses an elongated member that has an extended position and retracted position. The elongated member is installed between the brake pedal of a vehicle and a base and can be extended and retracted by a user from outside the vehicle using a remote. The tester is preferably used to test air brakes and is powered electronically and by air under pressure. The tester can be made to operate under electrical power alone, without pneumatic pressure.03-05-2009
20100095755PEDAL OPERATION AMOUNT DETECTING APPARATUS - In a pedal operation amount detecting apparatus, a brake pedal and a crevice fixed to an end portion of an operation rod are rotatably coupled by a coupling shaft, a bush is interposed between the brake pedal and the coupling shaft, and detectors are mounted on an outer peripheral surface of a bush body, which is elastically deformable, in the bush, and an ECU estimates an angle between the brake pedal and the operation rod based on a ratio between distortion loads detected by the detectors, and calculates an operation amount of the brake pedal, that is to say, pedal force and a pedal stroke, based on the angle, thereby enabling to improve mountability by simplifying a configuration and to detect the operation amount with a high degree of accuracy.04-22-2010
20100192681PEDAL OPERATION AMOUNT DETECTING APPARATUS - A device for detecting the amount of pedal operation, in which a brake pedal (08-05-2010
20110146395CONNECTING ELEMENT FOR MEASURING AN ACTUATING FORCE OF A VEHICLE BRAKE SYSTEM - The invention relates to a connecting element connecting a brake pedal to a brake force amplifier of a vehicle brake system. The invention proposes to dispose a helical compression spring as a first spring element and a rubbery-elastic reaction disk as a second spring element between a pedal rod and a piston rod of the connecting element, the spring elements being installed in series due to the arrangement thereof Due to the higher spring rate of the reaction disk preferably increasing with load, the connecting element has a progressive spring characteristic line. According to the invention, as soon as the pedal rod contacts the reaction disk the helical compression spring and the reaction disk act in parallel and serially such that the progression of the total spring characteristic line further increases.06-23-2011
20120198926Measuring Arrangement for Measuring the Application Force of a Disc Brake and a Corresponding Disc Brake - A measuring arrangement measures the application force of a disc brake. The arrangement includes two disc brake components displaceable relative to each other upon application of the force; an application force sensor having a housing; a measuring object formed by one of the two components and having a metal end face for interacting with the application force sensor in a contact-free manner, and an evaluation unit. The application force sensor is an eddy current sensor for capturing a displacement along the path. The evaluation unit converts the captured displacement into a measurement variable as a measure for the application force. The application force sensor and the measurement object are removably mounted on the respective component.08-09-2012
20130125638STROKE SENSOR ABNORMALITY DETERMINING APPARATUS - A stroke sensor abnormality determining apparatus includes a stroke sensor for detecting a stroke of a brake pedal by detecting an electric signal that varies in response to the stroke of the brake pedal, a deceleration calculating unit for calculating a total target value, which is correlated with a target deceleration of a vehicle, based on at least the stroke, and an abnormality determining unit for determining whether or not an abnormality of the stroke sensor occurs, based on the electric signal detected by the stroke sensor, the abnormality determining unit being configured so that a signal indicating the abnormality of the stroke sensor can be outputted when the abnormality is determined to have occurred in the stroke sensor.05-23-2013
20130205882PEDAL PROP FOR IMPOSING A LOAD ON A BRAKE PEDAL AND METHOD FOR CHECKING THE SEALING OF ONE OR MORE COMPONENTS OF A HYDRAULIC BRAKE SYSTEM - A pedal prop for imposing a load on a brake pedal, in particular in motor vehicles, in order to apply the pressure necessary during sealing tests on components of the brake system, comprising a movable part, which changes the length of the pedal prop by moving in and out, and a fixed part, wherein the movable part is supported on a point of support on the motor vehicle. According to the invention, an evaluation and control unit is provided as an integrated element, which controls an actuator in order to provide an actuating force, wherein a displacement sensor and a force sensor are provided, by which a travel and an actuating force of the actuator can be sensed.08-15-2013
20140144223Sensor Module for a Master Cylinder - A sensor assembly for use with a master cylinder is described. The master cylinder comprises an input-side activation element to which a signal transmitter element is coupled. The sensor module comprises a travel sensor for sensing travel carried out by the activation element, and a position sensor for sensing when a predefined position of the activation element is reached.05-29-2014
20140250995VEHICLE BRAKE SYSTEM TESTING DEVICE AND METHOD - Devices and methods for testing the brake system of a vehicle. Embodiments of the invention generally include an extendable rod that is adapted for removable installation between the steering wheel and brake pedal of a vehicle whose brake system is to be tested. Manual depression of the brake pedal with the device in place causes an extension of the extendable rod, the magnitude of which is measured by an associated sensor as brake pedal travel. A force sensor is provided to detect the amount of force applied to the brake pedal by a user's foot during testing. A controller receives signals from the sensors and determines whether the brake system passes the test. The controller may be coupled to an on-board diagnostics connector of the vehicle to receive and analyze other vehicle data, and to read the VIN of the vehicle.09-11-2014
20140331758INSTALLATION STRUCTURE FOR PEDAL STROKE SENSOR - Disclosed is an installation structure of a pedal stroke sensor configured to measure a displacement of a moving member interworking according to a stepping force of a brake pedal. The pedal stroke sensor provided with a sensing member to sense a change in displacement according to movement of the moving member in a non-contact manner is installed at an outside of a housing that allows the moving member to be slid thereinto, the sensing member is provided with a sensor housing that is detachably installed at the outside of the housing, a hall IC (integrated circuit) provided in the sensor housing to sense change in magnetic force, and a magnet housing provided in the sensor housing so as to move while facing the hall IC and on which a magnet is installed, and an elongated hole is formed through an outer surface of the housing in a direction in which the moving member moves, and the moving member is connected to the magnet housing by using a connecting member such that the moving member moves together with the magnet housing through the elongated hole.11-13-2014

Patent applications in class BRAKE TESTING

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