| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 303122000 | With failure responsive means | 9 |
| 20080258547 | AIRCRAFT BRAKE CONTROL ARCHITECTURE HAVING IMPROVED POWER DISTRIBUTION AND REDUNDANCY - An electromechanical braking system for an aircraft, including a first power conversion module (PCM) and a second power conversion module (PCM), each configured to receive power from a respective independent power source on the aircraft. The system further includes at least one brake system control unit (BSCU) for converting an input brake command signal into a brake clamp force command signal. At least a first brake control module (BCM) and a second brake control module (BCM) are provided, each configured to receive the brake clamp force command signal from the at least one BSCU and to output a primary brake clamp force command signal and an alternate brake clamp force command signal based on the received brake clamp force command signal. A first electromechanical actuator controller (EMAC) and a second electromechanical actuator controller (EMAC) are provided, each configured to convert a brake clamp force command signal to at least one electromechanical actuator drive control signal. The first EMAC is operative based on the primary brake clamp force command signal from the first BCM or, in the event of a failure disabling the first BCM, based on the alternate brake clamp force command signal from the second BCM. The second EMAC is operative based on the primary brake clamp force command signal from the first BCM or, in the event of a failure disabling the first BCM, based on the alternate brake clamp force command signal from the second BCM. The first EMAC receives its operating power from the first PCM, and the second EMAC receives its operating power from the second PCM. | 10-23-2008 |
| 20140110999 | Apparatus and Method for Isolating an Intact Portion of a Service Braking Circuit from a Failed Service Brake Wheel End - An apparatus and method for protecting an intact portion of a service brake system from a failed wheel end of a vehicle is provided. A failure in a wheel end is detected by determining an operation state of each of the wheel ends by monitoring parameters including the pressure in a parking brake air supply line. When it is determined that a failed wheel end is present in the service brake system, an antilock braking modulator or a service brake isolation valve is switched to a state in which the failed wheel end is isolated from the rest of the brake system. The service brake of the failed wheel end is disabled, while the service brakes of the other wheel ends are enabled for normal operation including antilock braking. And the parking brake of the failed wheel end is enabled, while the parking brakes of the other wheel ends are disabled to prevent immobilization of the vehicle. | 04-24-2014 |
| 303122040 | Electric system failure (no warning) | 1 |
| 303122050 | Electronic or electric component (e.g., speed detector, failure sensing) with warning | 1 |
| 20090096283 | BRAKING SYSTEM - A braking system includes first pressure sensors | 04-16-2009 |
| 303122080 | Active circuit testing | 1 |
| 20080246335 | Method For Detecting Brake Circuit Failure - A method is provided for detecting a fault condition in a hydraulic brake system of a vehicle having a first hydraulic brake circuit and a second hydraulic brake circuit. A correlation ratio is determined between a measured pressure and the actual vehicle acceleration. A first wheel velocity differential is determined and a second wheel velocity differential is determined. A weighting value is selected in response to determining whether the correlation ratio is within the predetermined range and whether the first wheel velocity differential and the second wheel velocity differential are opposite signs. The selected weighting value is added to a fault counter. A determination is made whether the fault counter is equal to or greater than a predetermined threshold. A fault condition is detected in response to the fault counter greater than or equal to the first predetermined threshold. | 10-09-2008 |
| 303122090 | Pressure failure | 5 |
| 20090127929 | BRAKE CONTROL APPARATUS - A brake control apparatus includes a braking force applying apparatus for applying a braking force to each of a plurality of wheels adapted to a vehicle, a braking force testing device for testing the braking force of a predetermined malfunction test subject wheel by controlling the braking force applied thereto to be reduced or maintained for a predetermined time on the basis of a test actuation pattern while the braking force applied to each wheel is increased, a wheel speed detecting device for detecting a wheel speed of each of the plurality of the wheels including the malfunction test subject wheel, and a malfunction detecting device for detecting a malfunctioning state, in a case where changes of the wheel speed of the malfunction test subject wheel towards acceleration is not detected while the braking force testing device testing the braking force applied to the malfunction test subject wheel. | 05-21-2009 |
| 20090273230 | BRAKING BOOSTER SYSTEM LEAK DIAGNOSTICS - A leak diagnostic system for a vehicle comprises a calculation module and a diagnostic enabling module. The calculation module calculates a decay rate of a brake booster vacuum. The diagnostic enabling module selectively enables the decay rate calculation based on mass airflow (MAF) into an engine and engine vacuum. | 11-05-2009 |
| 303122130 | Auxiliary pressure failure | 1 |
| 20100181825 | BRAKING SYSTEM FOR MOTOR VEHICLES - A brake system with a master cylinder, a first piston which is coupled to a brake pedal via a push rod transmitting actuating forces, a second piston which can be actuated by the first piston and which can be brought into force-transmitting connection to a third piston, via which the master cylinder is actuated, at least one elastic element which forms a pedal travel simulator which, in the “brake-by-wire” operating mode, gives the vehicle driver a pleasant pedal sensation, an interspace capable of being acted upon with hydraulic pressure, between the second and the third piston, the action of pressure upon the interspace loading the second and the third piston in opposite directions, a pressure supply device which has a high-pressure source and which allows both a filling of the interspace with pressure medium and emptying thereof, and a valve device for varying pressure fed in the interspace. | 07-22-2010 |
| 303122150 | Pneumatic | 2 |
| 20090236904 | PARK SYSTEM WITH HIGH/LOW TRIP PRESSURE FOR ADDED FAILURE PROTECTION WITH WORK BRAKE APPLICATION - A pneumatic brake system for a heavy duty vehicle is provided. The heavy duty vehicle has at least one source of pressurized air for pressurizing the brake system, at least one spring brake chamber including a spring brake assembly, and at least one service brake chamber including a service brake assembly. The brake system includes a first control valve, a second control valve and a work brake system. The first control valve is in communication with the source of pressurized air. The first control valve delivers pressurized air to the spring brake chamber and exhausts pressurized air to atmosphere to activate the spring brake assembly when brake system pressure is reduced to a predetermined low trip brake system pressure. The second control valve is in communication with the source of pressurized air and selectively delivers pressurized air to the service brake chamber for application of the service brake assembly. The work brake system is in communication with the source of pressurized air, the first control valve, and the second control valve. The work brake system is operably dependent on a predetermined high trip brake system pressure and a predetermined reset brake system pressure. Upon actuation of the work brake system, when brake system pressure is greater than the predetermined high trip pressure, the work brake system is configured to deliver a pneumatic control signal to the second control valve to activate the service brake assembly. When brake system pressure is less than the predetermined high trip pressure, the work brake system is configured to deliver a pneumatic spring brake signal to the first control valve to activate the spring brake assembly and remove the pneumatic control signal to the second control valve. The delivery of the pneumatic control signal to the second control valve via the work brake system is prevented until brake system pressure is greater than the predetermined reset pressure. | 09-24-2009 |
| 20100090522 | METHOD AND DEVICES FOR OPERATING A MOTOR VEHICLE BRAKE DEVICE - The invention relates to a method for operating a brake device of a motor vehicle, comprising a service brake ( | 04-15-2010 |
