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| Number | Title | Issue Date |
| 8165767 | Traction control system for 4WD/AWD vehicles A method controls a powertrain that directs power from an engine and a transmission to all four wheels or to just front wheels or to just rear wheels. The method includes monitoring information transmitted over a communications network. The method determines whether... | 04/24/2012 |
| 8135524 | Vehicle driving force control device A driving force control device includes an individual-wheel friction-circle limit-value calculating portion that calculates friction-circle limit-values of individual wheels, an individual-wheel requested-resultant-tire-force calculating portion that calculates requ... | 03/13/2012 |
| 8135525 | Torque converter with turbine mass absorber A torque converter having a first damper stage, a second damper stage, a floating flange torsionally connecting the first and second damper stages, an inertia element, and a tuned torsion damper. The torsion damper connects the inertia element and the flange. In a p... | 03/13/2012 |
| 8103419 | Driving force transmission device A driving force transmission device includes a transfer torque command value calculation section which calculates a transfer torque command value indicating a command value of the transfer torque between two members based on a running state of the vehicle, an energy... | 01/24/2012 |
| 8095288 | Reducing oscillations in a motor vehicle driveline A method for reducing oscillations in a vehicle driveline includes transmitting torque to secondary wheels of the vehicle, determining a first rate of change in speed between the secondary wheels and primary wheels, if a second rate of change in speed between second... | 01/10/2012 |
| 8078374 | Control system for an at least temporarily four-wheel-driven motor vehicle In the case of a control system for an at least temporarily four-wheel-driven motor vehicle having an electronic control unit, which determines at least the rotational speeds of all wheels and the vehicle speed, and by which the driving torque of a drive unit can be... | 12/13/2011 |
| 8055420 | Vehicle control device A main controller calculates permissible driving forces of individual wheels from a road-surface friction coefficient, ground loads of the individual wheels, and lateral forces of the individual wheels. The main controller then calculates a permissible engine torque... | 11/08/2011 |
| 8019520 | Vehicle drive control device A vehicle drive control device includes an initially determined request acceleration calculation means for calculating an initially determined request acceleration, an automatic drive control means for receiving the initially determined request acceleration and appl... | 09/13/2011 |
| 7979189 | Vehicle behavior control system and method A vehicle behavior control system includes: a first drive power control unit that executes a turning control over right and left drive wheels of a vehicle to reduce the turning radius of the vehicle based on a drive power difference between the right and left drive ... | 07/12/2011 |
| 7979188 | Method for activating and deactivating the four-wheel drive of service and working vehicles without interactive differential locks A method for activating and deactivating the four-wheel drive of a service or a working vehicle not having interaxle differential locks. According to the method, the activation and deactivation of the four-wheel drive is derived from at least one of the following pa... | 07/12/2011 |
| 7974759 | Control device for vehicle, and control method thereof A drive force control portion firstly changes a front wheel command torque (Tfcm) and a rear wheel command torque (Trcm) so that each command torque reaches a torque in a predetermined range. The drive force control portion releases the restriction on the change of ... | 07/05/2011 |
| 7920950 | Vehicle drive torque estimation device and drive torque estimation method, and four-wheel drive vehicle The estimated drive torque calculation unit, is configured such that if the running condition determination unit determines that the transmission mechanism is in gear, and if the speed of rotation of the output shaft of the torque converter measured by the rotation ... | 04/05/2011 |
| 7788011 | Braking and drive force control apparatus for a vehicle A braking and drive force control apparatus for a vehicle whose wheels are separately driven by electric motors. A controller calculates a drive force or a braking force to be applied to each wheel in accordance with the average sprung displacement and average sprun... | 08/31/2010 |
| 7734402 | Driving-force distribution control device A driving-force distribution control device includes a distributing mechanism, a distribution controller, an anti-skid brake system, an acceleration detector, a synthesized acceleration calculator and a control coefficient controller. The distributing mechanism is o... | 06/08/2010 |
| 7729839 | Automated inter-axle differential lock sensor configuration and calibration method The present invention relates to an automatic inter-axle differential sensor configuration (i.e., location) and calibration method for a vehicle having a tandem drive axle. The method involves determining the speed of the vehicle, determining pulses per minute from ... | 06/01/2010 |
| 7715968 | Control method for four-wheel drive vehicle A drive force control method for a four-wheel drive vehicle including a torque distributing mechanism capable of changing a drive force distribution ratio between front and rear wheels and a drive force distribution ratio between right and left front wheels or betwe... | 05/11/2010 |
| 7680576 | Driving force distribution control device for vehicle To maintain operating safety by driving force distribution control system when an abnormal state arises and to smoothly transition from a normal state to an abnormal state without sudden changes in vehicle behavior. The driving force distribution control part calcul... | 03/16/2010 |
| 7653470 | Method to prevent chain jump in a drivetrain A method to prevent chain jump in a drivetrain of a four-wheel drive vehicle including receiving sensed vehicle parameters from sensors in the four-wheel drive vehicle, generating transfer case chain-jump parameters based on the sensed vehicle parameters and sending... | 01/26/2010 |
| 7634344 | Driving force control apparatus for automotive vehicles In a driving force control apparatus for an automotive vehicle employing an engine that drives a main drive wheel, a generator driven by the engine, and a motor driven by an electric power output generated by the generator to drive a subsidiary drive wheel, a subsid... | 12/15/2009 |
| 7603220 | Method and system for detecting damage done to a clutch having at least two components that transfer torque by frictional engagement A method for detecting damage done to a clutch having at least two components that transfer torque by frictional engagement comprises the following steps: determining the friction power L introduced into the friction surfaces of the components by slippage between th... | 10/13/2009 |
| 7516006 | Control method for four-wheel drive vehicle A drive force control method for a four-wheel drive vehicle including a torque distributing mechanism capable of changing a drive force distribution ratio between front and rear wheels and a drive force distribution ratio between right and left front wheels or betwe... | 04/07/2009 |
| 7480553 | Driving dynamic control or regulating system and method for a two-track, two-axle motor vehicle A system and method are provided for controlling or automatically controlling the driving dynamics of a two-track, two-axle motor vehicle having only one driven axle, which, for the rolling moment support, has a system for changing the distribution of the wheel cont... | 01/20/2009 |
| 7444222 | Method and apparatus for generating a cornering-corrected eLSD control signal Methods and apparatus are provided for generating a slip control for an active driveline device (such as an electronic limited slip differential (eLSD)) that corrects for longitudinal tire slip in the turning wheels of a vehicle. Indicia of a yaw rate of the vehicle... | 10/28/2008 |
| 7440834 | Drive force distribution system for four wheel independent drive vehicle A drive force distribution system for a four wheel independent drive vehicle is configured to suppress changes in longitudinal and lateral accelerations and change in yaw moment about the center of gravity of the vehicle that occur when the brake/drive force of one ... | 10/21/2008 |
| 7434646 | On-demand four wheel drive system An on-demand four wheel drive system for a vehicle having a front drive train, a rear drive train, and a transfer case. The system includes a sensor system operable to detect the speed of the front drive train and the speed of the rear drive train. The system also i... | 10/14/2008 |
| 7433768 | Method for determining a steering-wheel torque In a method, a steeringwheel torque for the steering wheel of a motor vehicle is determined. In this context, a steering angle for steered wheels is predefined by the driver by means of the steering wheel. A steering torque which represents the forces on the vehicle... | 10/07/2008 |
| 7424364 | Method and device for warning a driver of lane departure A method and device for warning a driver of lane departure, wherein a first analyzer is used to detect the vehicle's lane departure based on image data and/or vehicle data and/or driver activity. The driver then receives a warning as a function of the detection by t... | 09/09/2008 |
| 7421324 | Drive system switching control method In a drive system switching control method of an automotive four-wheeled vehicle for switching two drive systems comprising a two-wheel drive and a four-wheel drive. The method has a step of detecting a steering angle, and a step of inhibiting the drive system switc... | 09/02/2008 |
| 7421327 | Drivetrain protection and management system A drivetrain protection and management system (DPMS) monitors and determines individual wheel speeds to detect wheel spin and slip conditions on a drive axle. Wheel spin is caused by low surface friction, excessive input torque, lack of inter-axle differential and d... | 09/02/2008 |
| 7418328 | Steering logic for self-propelled mower Steering logic for a self-propelled vehicle having a plurality of wheels includes the steps of receiving translational velocity and angular velocity commands, determining the resultant velocity and steer angle of each wheel, and determining the wheel offset correcti... | 08/26/2008 |
| 7415324 | Vehicle wheel alignment adjustment method A method for measuring and aligning front and rear wheels of a four wheel vehicle, including measuring alignment properties of the front wheels, and correcting alignment properties of the rear wheels if all of the measurements of the alignment properties of the fron... | 08/19/2008 |
| 7406374 | Steering ratio control system of vehicle A steering ratio control system of a vehicle includes a variable steering ratio mechanism variably adjusting a steering ratio of a steer angle at left and right steered road wheels to a steering-wheel rotation angle, and a braking/driving force control unit individu... | 07/29/2008 |
| 7386383 | Differential limiting control apparatus for a vehicle and the method thereof A differential limiting control apparatus for a vehicle has: clutch unit interposed between one rotational shaft and the other rotational shaft for variably transmitting a driving force between the one rotational shaft and the other rotational shaft; target differen... | 06/10/2008 |
| 7364524 | Driveline coupling for electric module A module with an axle assembly, which has a housing, a differential, an input shaft, a pair of shafts and a pair of wheel hubs, and an auxiliary drive unit that includes an electric motor and an overrunning clutch. The differential and the input shaft are disposed i... | 04/29/2008 |
| 7366327 | System for recognizing wheels by artificial vision The system includes wheel locating equipment, image capturing equipment, lighting equipment, a first control device, first communicating installations for communications between the first control device and the image capturing equipment, and second communicating ins... | 04/29/2008 |
| 7357208 | Control system for an at least temporarily four wheel-driven motor vehicle A control unit of an at least temporarily four wheel-driven motor vehicle is provided. The control unit is arranged such that a displacement path for an actuator that actuates a transmission clutch is assigned to a setpoint clutch torque via a characteristic curve, ... | 04/15/2008 |
| 7356391 | Drive controlling apparatus and method for automotive vehicle In drive controlling apparatus and method for an automotive vehicle, at least one couple of road wheels constitutes one pair of parallel road wheels with respect to a vehicular width direction, a plurality of motors driving independently and separately each road whe... | 04/08/2008 |
| 7353896 | Wheel provided with driving means A traction assembly includes a wheel comprising a wheel shaft and traction means which, when in operation, exert torque on the wheel shaft, wherein the traction ratio, being the arm of the torque divided by the size of the radius of the wheel, is larger than 0.57. | 04/08/2008 |
| 7353098 | Roll-over suppressing control apparatus for a vehicle The invention provides a roll-over suppressing control apparatus for a vehicle which can suppress overturning of the vehicle while securing the traveling performance of the vehicle through appropriate slowing down control. The roll-over suppressing control apparatus... | 04/01/2008 |
| 7349788 | System for reducing powertrain reaction torque A system is provided for controlling the inertia of a vehicle's powertrain during sudden braking events. Torque generated by rapid deceleration of the vehicle's drive wheels during braking is prevented from being transmitted through the vehicle's driveline by a clut... | 03/25/2008 |
