| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 180197000 | WITH MEANS FOR DETECTING WHEEL SLIP DURING VEHICLE ACCELERATION AND CONTROLLING IT BY REDUCING APPLICATION OF POWER TO WHEEL | 27 |
| 20080245591 | Anti Spinning Device, a Vehicle Comprising the Device and a Method for Reducing Slip During Advancing of a Vehicle - An anti spinning device for a powered vehicle is provided. The vehicle includes at least one driveline, the driveline including a power source and at least one rotatable element, which power source is connected to and arranged to transmit power to the at least one rotatable element. The anti spinning device includes an arrangement for detecting the fulfilment of a preset condition and an arrangement for interrupting the power transmission to the individual rotatable element when the preset condition is fulfilled. A method for controlling an anti spinning device, and a vehicle and a work vehicle such an anti spinning device, are also provided. | 10-09-2008 |
| 20080257629 | Method for Controlling Rotation Speed - A method for controlling rotation speed of at least one rotary element in the driveline of a vehicle is provided. At least one operating parameter is detected repeatedly, which operating parameter corresponds to an actual value of a torque in the driveline, which is delivered to the rotary element. A desired value of a torque to the rotary element is determined on the basis of friction against the ground of at least one of the ground engagement elements of the vehicle, which ground engagement element is driven via the rotary element. The rotation speed of the rotary element is controlled so that the actual value moves toward the desired value. | 10-23-2008 |
| 20080264709 | Truck - The present invention relates to a truck, in particular to a bulk goods dump truck of the so-called large dump truck type, having a chassis with wheels of which a plurality of wheels each have a single wheel drive and having a control device for the control of the speed and/or of the torque of the single wheel drives. In order also to be able to operate the vehicle in the optimal wheel slip range under difficult ground conditions, provision is made for the control device to have a separate controller train for each single wheel drive and to divide a desired torque set by the operator to the controller trains, with each controller train having a differential controller which corrects the divided desired torque in dependence on a steering angle and provides a correspondingly corrected desired torque as well as having a wheel slip controller which corrects the divided desired torque or the desired torque value corrected by the differential controller in dependence on its wheel slip and provides a corresponding single wheel drive desired torque value. A simple expansion to more than two drives is possible by the provision of separate control trains. In this connection, the desired torque is first divided to the single drives by the operator, then corrected by the differential control and the wheel slip control and finally transmitted to a frequency inverter as a desired torque. | 10-30-2008 |
| 20080314667 | WHEEL SKID DETECTION DURING MECHANIZED CART RETRIEVAL - A vehicle tracking system includes a wheel containing sensor circuitry capable of sensing various types of conditions, such as wheel rotation, wheel vibration caused by skidding, and specific electromagnetic and/or magnetic signals indicative of particular wheel locations. The sensor circuitry is coupled to an RF transceiver, which may but need not be included within the wheel. The wheel may also include a brake mechanism. In one embodiment, the wheels are placed on shopping carts and are used to collect and monitor shopping cart status and location data via a wireless network. The collected data may be used for various purposes, such as locking the wheel of an exiting cart if the customer has not paid, estimating numbers of queued carts, stopping wheel skid events that occur during mechanized cart retrieval, store planning, and providing location-based messaging to customers. | 12-25-2008 |
| 20090014225 | REVERSE OVER-RIDE SYSTEM FOR MOWER TRACTION DRIVE - A reverse over-ride system is provided for a mower traction drive having a front pair of hydraulic traction motors and a rear pair of hydraulic traction motors. Each motor is operable in a forward direction or a reverse direction, and each front motor is in series with a rear motor. The system includes a solenoid operated valve connected to each rear motor. Each solenoid operated valve has a first position in which a check valve opens to allow recirculation through the rear wheel motors while the mower operates in a forward turn, and closes to disallow recirculation so the rear wheel motors may build pressure and drive during hill climbing. Each solenoid operated valve has a second position allowing free rotation of the rear motor while the machine operates in a reverse direction. A mechanical or electronic linkage is provided between the reverse pedal and solenoid operated valves. | 01-15-2009 |
| 20090014226 | Torque Differential Modification of a Non-Driven Axle - Apparatus and methods are provided for modifying a torque differential between the road wheels of a non-driven axle. One apparatus includes, but is not limited to, two non-driven shafts and a torque transfer modulator coupling the two non-driven shafts. The torque transfer modulator is configured to modify the torque differential between the two non-driven shafts. A motor vehicle includes, but is not limited to, the apparatus coupling left and right road wheels, a sensor for detecting a left turn and/or right turn, and a controller. The controller is configured to transmit an actuating signal to the torque transfer modulator in response to the turn. One method includes, but is not limited to, detecting a driving condition in a motor vehicle, subtracting an amount of torque from a first non-driven road wheel, and adding the amount of torque to a second non-driven road wheel in response to detecting the driving condition. | 01-15-2009 |
| 20090032322 | Preemptive Torque Control of a Secondary Axle to Optimize Traction - A method of preemptively applying torque to a secondary axle of an all wheel drive vehicle is provided. A determination is made of a preemptive torque value based at least upon throttle rate. A determination is made if a minimum throttle rate has been met. If the minimum throttle rate is met, a controller preemptively applies preemptive torque value to the secondary axle. | 02-05-2009 |
| 20090095551 | ANTI-SKID CONTROL DEVICE AND AUTOMATIC BRAKE CONTROL DEVICE - An anti-skid control device or an automatic brake control device gradually increases a W/C pressure for a boost control valve for a front wheel FR or FL on a high-μ surface, by repeating a cycle in which the differential pressure for the boost control valve at the high-μ surface side is kept at the first differential pressure for a first period, and after that kept at the second differential pressure for a second period. Therefore, it is possible to suppress the individual variation in the capability for W/C pressure boosting, and accordingly to suppress the difference of the W/C pressures between the right front wheel and the left front wheel. Thus, it is possible to suppress the yaw torque applied to the vehicle and therefore to suppress the spin of the vehicle. | 04-16-2009 |
| 20090101428 | Vehicle and control method thereof - The occurrence or non-occurrence of a certain slip of a drive wheel is detected based on only a motor torque used for driving a vehicle, a brake torque, and a rotation speed of a motor computed from an output of a rotational position detection sensor. In response to detection of the occurrence of the certain slip, drive restriction of the motor is activated for slip control. This arrangement enables effective slip control by the simple configuration. The slip control is attainable by multiple different mechanisms, that is, a brake system and the drive restriction of the motor. Even in the event of any failure or abnormality arising in the brake system or in the event of prohibiting traction control of the brake system in response to the driver's operation of a TRC off switch, the drive restriction of the motor accomplishes the slip control. This arrangement desirably prevents slip-induced unstable driving of the vehicle and damages of devices involved in slip control for the vehicle. | 04-23-2009 |
| 20090107747 | Detection and Control of Power Induced Hop During Traction Control in a Vehicle - A method for controlling a powertrain of a vehicle with wheels during a traction control event is provided. The method comprises adjusting wheel torque in response to an amplitude of a band-pass filtered driven wheel speed and a direction of acceleration of driven wheels. | 04-30-2009 |
| 20090107748 | Stuck Vehicle with Time and Pedal Related Traction Control - A method for controlling a powertrain of a vehicle is provided for traction control. The method comprises controlling wheel slip to a first amount, the first amount independent of a driver requested output; and controlling the wheel slip to a second amount when a vehicle speed is less than a threshold for a first duration, the second amount based on the driver requested output. | 04-30-2009 |
| 20090107749 | Closed Loop Traction System for Light-Weight Utility Vehicles - A traction control system for a light-weight utility vehicle is provided. The system includes a wheel speed sensor that generates a wheel speed signal in accordance with a rotational speed of a non-driven wheel of the utility vehicle. An accelerator position sensor generates an accelerator signal in accordance with a position of an accelerator pedal of the utility vehicle. A controller receives the wheel speed signal and the accelerator signal, determines an intended speed based on the accelerator signal, and determines a substantially actual wheel speed based on the wheel speed signal. Based on a comparison of the substantially actual wheel speed and the intended speed, the controller controls rotation of at least one driven wheel by adjusting at least one of a commanded speed and a commanded torque when the substantially actual wheel speed is outside of a desired range of the intended speed. | 04-30-2009 |
| 20090229904 | DRIVING FORCE CONTROL DEVICE - A driving force control device for an electric vehicle in which a left wheel is driven by a left in-wheel motor and a right wheel is driven by a right in-wheel motor includes a driving force difference setting section. The driving force difference setting section is configured to set a driving force difference between a driving force outputted from the left in-wheel motor and a driving force outputted from the right in-wheel motor when a lateral acceleration is detected acting on the vehicle, the driving force difference being set to generate a restoring moment against the vehicle corresponding to the lateral acceleration. | 09-17-2009 |
| 20090255746 | Traction and Stability Control System and Method for a Vehicle with Mechanically Independent Front and Rear Traction Wheels - A vehicle powertrain with mechanically independent sets of front and rear traction wheels has separate motive power units. An electronic control system including traction wheel slip control is electronically coupled to a first motive power unit and to a second motive power unit to separately establish maximum rear wheel traction and maximum front wheel traction. Independent requests are made for an increase or a decrease in wheel torque for one set of traction wheels and an increase or decrease in wheel torque for the other set of traction wheels thereby improving acceleration performance and enhancing vehicle stability. | 10-15-2009 |
| 20090272592 | SYSTEM AND METHOD FOR INTEGRATING A TORQUE VECTORING DIFFERENTIAL WITH A STABILITY CONTROL SYSTEM - Methods and apparatus are provided for integrating a torque vectoring differential (TVD) and a stability control system in a motor vehicle. The integrated system is utilized for more efficiently correcting understeer and/or oversteer slides in a motor vehicle. In correcting these slides, the integrated system utilizes the TVD to rotate two wheels on opposite sides of the motor vehicle at different rates to create a yaw moment at the vehicle's center of gravity until the TVD reaches a saturation point and the understeer or oversteer slide is not corrected. Once the saturation point is reached without correcting the understeer or oversteer slide, the stability control system is employed to selectively apply one or more of the vehicle's brakes in a further effort to correct the understeer or oversteer slide. | 11-05-2009 |
| 20090321168 | CHILDREN'S RIDE-ON VEHICLES HAVING GROUND DETECTION SYSTEMS - Children's ride-on vehicles having a drive assembly that is selectively configured between a plurality of drive configurations, such as responsive to user inputs via user input devices, and a ground detection system that is adapted to detect when at least one of a plurality of wheels loses contact with the ground surface. The ground detection system may be adapted to restrict the plurality of drive configurations responsive thereto. This restriction may be automatic responsive to loss of contact of the at least one of the plurality of wheels with the ground surface, and it may be made regardless, or independent, of user inputs that otherwise would select and/or enable one of the restricted drive configurations. | 12-31-2009 |
| 20110048829 | WORK VEHICLE - The purpose of the present invention is to provide a work vehicle that does not slip. The work vehicle has an engine ( | 03-03-2011 |
| 20110127097 | WHEEL SLIP DETERMINATION FOR VEHICLES - A method for assessing slippage of wheels in a vehicle includes the steps of measuring, via a sensor, an initial value of vehicle speed, determining, via a processor, at least one of a minimum vehicle speed and a maximum vehicle speed, and determining, via the processor, wheel slip using the initial value and the at least one of the minimum vehicle speed and the maximum vehicle speed. | 06-02-2011 |
| 20120279793 | ELECTRICALLY DRIVEN VEHICLE - Provided is an electrically driven vehicle capable of suppressing drive wheel slipping, even in low-speed regions where wheel speeds are undetectable. | 11-08-2012 |
| 20130313033 | Hydraulic motor having controlled output based on machine slippage model - A method of managing operation of a machine is described herein. The machine includes drive components that supply a propulsive force exerted by the machine on a traveled surface. The machine includes a programmed controller that controls power output by a motor to the drive components of the machine, in accordance with a slippage model, to actively manage excessive slippage at a physical interface between the machine and the traveled surface. The programmed controller determines a track force indicative of the propulsive force exerted by the machine on the traveled surface. The programmed controller further determines a modeled slippage based, at least in part, upon the track force and the slippage model. The machine conditionally causes a reduction of the power output by the motor based upon a comparison, by the programmed controller, between the modeled slippage and a slippage limit. | 11-28-2013 |
| 20150060173 | SYSTEM AND METHOD FOR HYBRID VEHICLE CONTROL DURING WHEEL SLIP EVENTS TO LIMIT GENERATOR SPEED - A system an method for controlling a hybrid vehicle having a transmission coupled to vehicle wheels, an internal combustion engine, a planetary gearset coupled to the engine and to a differential output shaft to drive the vehicle wheels, a traction motor coupled through gearing to the differential output shaft and the planetary gearset, a generator coupled to the planetary gearset and electrically coupled to the fraction motor, a traction battery coupled to the generator and the traction motor, and at least one controller in communication with the engine, the traction motor, and the generator include limiting engine speed in response to a wheel slip event to an engine speed limit based on motor speed and generator speed to prevent the generator speed from exceeding a corresponding threshold when the wheel slip event terminates. | 03-05-2015 |
| 20150060174 | IN-WHEEL SYSTEM FOR HYBRID ELECTRIC VEHICLE - Disclosed is an in-wheel system for a hybrid electric vehicle. The in-wheel system includes an engine that provides a rotational driving power to front wheels or rear wheels, at least one in-wheel motor that is driven by a battery, and is provided at each of the front wheels or each of the rear wheels so as to correspond to the wheels to which the driving power of the engine is transmitted to provide a rotational driving power to the same wheels as wheels driven by the engine, and a controller that controls the engine and the in-wheel motor to be driven. | 03-05-2015 |
| 20150060175 | WALKING ASSISTANCE MOVING VEHICLE - A walking assistance moving vehicle includes a walking assistance moving vehicle main body with a pair of drive wheels, a drive wheel rotational speed sensor, a turning sensor, and a controller. The drive wheel rotational speed sensor senses drive wheel rotational speed of each of the drive wheels. The turning sensor directly senses at least one of a first lateral acceleration and a first turning angular velocity. The controller indirectly acquires at least one of a second lateral acceleration and a second turning angular velocity based on the drive wheel rotational speed sensed by the drive wheel rotational speed sensor. The controller performs a first control to decelerate or stop drive of the drive wheels based on a comparison of the first turning angular velocity and the second turning angular velocity or a comparison of the first lateral acceleration and the second lateral acceleration. | 03-05-2015 |
| 20150314678 | System and Method of Controlling a Drive Axle System - A drive axle system and a method of control. The drive axle system may include a first drive axle assembly and a second drive axle assembly that may be operatively coupled via a slip clutch. | 11-05-2015 |
| 20160059694 | OIL DISTRIBUTION DEVICE WITH A NON-RETURN VALVE - The invention relates to a hydraulic transmission device for a vehicle, said device comprising a first pump and a second pump, a first hydraulic apparatus and a second hydraulic apparatus, a first supply circuit connecting the first pump to the first apparatus, and a second supply circuit connecting the second pump to the second apparatus and wherein a non-return valve between the supply circuits, the valve having a direction for passing from the first to the second supply circuit, a first return circuit connecting the first apparatus to said pumps, a second return circuit the second apparatus to the admissions to said pumps so that the return circuits are in permanent fluidic communication with each other through a junction. | 03-03-2016 |
| 20160152238 | CONTROL APPARATUS FOR FOUR-WHEEL DRIVE VEHICLE | 06-02-2016 |
| 20160193919 | Electric-Vehicle Slip Control Device | 07-07-2016 |
