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5328255 Wheel slip control system  
A wheel slip control system (ABS and/or drive slip control and/or engine drag moment control system) is formed so that when vehicle motion along curvilinear path is detected the control system is...
5329453 Traction control system for automotive vehicle  
The braking force to the driven wheels is subjected to feedback control so as to allow the actual slip value of the driven wheels to agree with a predetermined target value for controlling the...
5326160 Hydraulic systems for vehicles  
In a hydraulic system for traction control, a pump is adapted to withdraw fluid from a reservoir through a master cylinder assembly under the control of a solenoid-controlled valve responsive to...
5323871 Rotary actuation mechanism for torque modulated transfer case  
The present invention is directed to an improved "on-demand" power transfer system of the type having a transfer mechanism incorporated into the driveline of a four-wheel drive vehicle. The...
5323870 Adjustable viscous shear coupling for an all-wheel drive vehicle and a process for its control  
A viscous shear coupling for distributing torque between front and rear axles of an all-wheel drive vehicle is provided which comprises a housing, a set of inner blades interdigitating with a set...
5322355 Anti-skid brake control system  
An anti-skid brake control system is described which recognizes a driving condition in which it is not possible to sufficiently brake the vehicle. The braking effect can be improved by switching...
5320422 Slip control device for vehicle wheel  
A slip control device includes a slip detecting device for detecting a slip rate of a drive wheel, an engine control device for reducing an engine output when the slip rate exceeds a first...
5318355 Brake system in electric vehicle  
The switchover is mode from a regenerative braking-preference mode in which the braking force for follower and driving wheels are more than a theoretical braking force distribution characteristic...
5315516 Process and system for generating a signal representative of the transverse movement of a vehicle  
Signals delta - - w representing the RPM difference of at least two wheels of at least one axle and signals V representing the vehicle speed are linked through a nonlinear characteristic diagram....
5313855 System for the open-loop control of a motor vehicle  
A system for controlling a positioning unit in a motor vehicle includes various control units that influence the positioning unit coupled thereto. A drive slip control and an automatic transmission...
5315519 Method of sensing excessive slip in a wheel slip control system  
The onset of an excessive slip condition in a slip controller is determined so that it is adaptable to the actual drive torque conditions between the driven wheel and the road surface so as to...
5313391 Drive slip regulating system wherein a slippage threshold is determined from the speed and acceleration of non-driven wheels  
A reference speed value which corresponds to the vehicle speed is derived from the speeds of the non-driven wheels. If the wheel speed signals exceed this reference value by a threshold slippage...
5312169 Circuit configuration for an automotive vehicle with anti-lock control and/or traction slip control  
A circuit configuration for an automotive vehicle with anti-lock control and/or traction slip control is equipped with wheel sensors (S1-S4), with circuits for handling and evaluating the sensors...
5311433 Acceleration slip control device for a vehicle  
A device for controlling the slip between driving wheels and a road surface during a start and an acceleration of a vehicle is maintained at a level which ensures a good acceleration and straight...
5309362 Engine torque controlling device responsive to the acceleration of the vehicle and slippage of the wheels  
A driving torque controlling system by which a vehicle can drive with safety and certainty while maintaining an appropriate posture without dissatisfying the will of a driver very much. The driving...
5305218 Vehicle handling control for wheel slip control systems  
A wheel slip control system for the left and right wheels common to an axle of a vehicle establishes a desired turning radius by controlling the wheel slip limit so as to establish the outer to...
5303794 Wheel spin control using electronically controlled clutches and engine controls  
A system and method for reducing wheel spin of a vehicle on slippery surfaces wherein the wheel spin is reduced by regulating the engagement of the clutches in a multiple clutch transmission of the...
5301766 Power steering and limited slip differential system  
A power steering and limited slip differential system is provided with a main booster generating a steering effort for front wheels, a directional control valve having a pair of reaction chambers...
5301768 Four-wheel drive torque transfer mechanism  
A four-wheel drive torque transfer mechanism splits torque from the transmission gearing section of a vehicle into a front-wheel torque and a rear-wheel torque, transmitting the front-wheel torque...
5297662 Traction control system for vehicle  
A traction control system for a vehicle has a sub-throttle valve provided in an intake passage of the engine in series to a main throttle valve which is operatively connected to an accelerator...
5299131 Method of correcting the rotating speed of vehicle wheels sensed by wheel sensors  
Vehicle speed is measured during slip-free travel of the wheels and compared with the wheel speeds to determine correction values which correct for different wheel diameters. The correction values...
5297646 Control system for optimizing operation of vehicle performance/safety enhancing systems such as 4WS, 4WD active suspensions, and the like  
Vehicular acceleration is sensed and used to set and/or modify at least two of a plurality of control sensitivity values in a manner which increases one with respect to the other and thus avoids...
5297649 Apparatus for controlling output from engine on crawler type tractor  
At the time of starting movement as well as at the time when a crawler type tractor, e.g., a bulldozer for performing a dosing operation and a ripping operation is held in a three-point grounding...
5295552 Slip control system for motor vehicle  
A slip control system for a motor vehicle controls respective braking forces in right and left driving wheels and controls an engine output by controlling a throttle opening of a throttle valve so...
5291965 Engine output control system for vehicle  
An engine output control system for a vehicle detects a degree of slip of driving wheels of the vehicle and determines engine output reduction requirement by which the output of the engine is to be...
5293315 Circuit configuration for an automative vehicle having traction slip control  
A variable control threshold (RS) is formed by a circuit configuration for the traction slip control through brake management, with the control threshold being composed of a basic threshold (GS)...
5291408 Vehicle traction control system  
A traction control system limits the spin of a vehicle driven wheel at a spin limit value that is a function of the vehicle turn rate and that is decreased as a function of the vehicle turn rate of...
5287941 Drive wheel torque controlling system for vehicle  
A drive wheel torque control system for a vehicle includes control means for controlling a variable differential motion limiting device provided between drive wheels to distribute a predetermined...
5287280 Method and apparatus for controlling shoe slip of crawler vehicle  
This invention relates to a method and apparatus for controlling shoe slip of a crawler vehicle directed to automatically prevent an endless track from slipping beyond the state where maximum...
5287279 Engine output torque control system  
An output torque control system for a multiple cylinder engine limits fuel supply to one or more selected cylinder(s) of the engine according to a predetermined fuel limiting pattern when the...
5283742 Excess slip control device for driving wheel  
An excess slip control device for a driving wheel, comprising a driving wheel speed sensor for detecting a driving wheel speed of a vehicle, a slip determining means for determining a slip...
5281008 Traction control system for motor vehicle  
A traction control system for a motor vehicle having driving wheels and driven wheels. The traction control system comprises sensors for detecting a speed of each of the driving wheels of the...
5282138 Control method for an antiskid braking system incorporated in a four-wheel-drive automobile  
A control method is intended for controlling an antiskid braking system for a four-wheel-drive automobile in which the front and rear wheel sides are connected by a drive system. The control method...
5282137 Driving wheel slip control system  
When the output from an internal combustion engine is reduced using a combination of a throttle valve control device, a fuel cut control device and an ignition retard control device, the starting...
5279382 Traction control system for automotive vehicle and traction control method therefor  
An improved traction control system and method for an automotive vehicle are disclosed in which both deceleration slip brake control system (ABS) and acceleration slip brake control system (TCS)...
5280432 Anti-skid brake control system based on acceleration detection  
The anti-skid control system is constructed with a brake fluid pressure source for generating brake fluid pressure at high and low levers, a switching valve feeding either high pressure or low...
5278761 Method for vehicular wheel spin control that adapts to different road traction characteristics  
Techniques for controlling the spin of driven wheels of a vehicle being driven over a surface, the vehicle also including nondriven wheels and an engine having a fuel system for varying engine...
5275253 Part-time transfer case with traction control  
The present invention provides a motor vehicle traction control system for providing on-demand four-wheel drive under certain tractive and operational conditions. The present invention is operable...
5275477 Hydraulic dual-circuit brake system  
A hydraulic dual-circuit brake system, with an anti-skid system (ABS) and traction control (ASR) for motor vehicles having a four-channel hydraulic unit with control valves, a return pump with two...
5272635 Torque distribution control apparatus for four wheel drive  
The driving torque distribution for four wheels of a car is controlled correspondingly to the running state. It is considered that disturbance causes a lateral acceleration or yaw rate which is...
5270933 Circuit configuration for a brake system with anti-lock control and/or traction slip control  
A circuit configuration for a brake system with anti-lock control and traction slip control comprising, wheel sensors for generating electric signals representing the wheel rotational behavior and...
5269391 Apparatus for controlling the output of a vehicle equipped with an internal combustion engine  
A control apparatus for controlling the output of a vehicle equipped with an internal combustion engine. The control apparatus includes a torque control unit and an electronic control unit, is...
5269596 Traction control through collective or independent wheel braking  
A traction control method for a vehicle according to the present invention for generating braking forces in the brake devices for driving wheels when excessive slipping has occurred in the drive...
5269390 Traction control system  
A traction control system is provided for a vehicle having driven wheels driven via a limited slip differential. The amount of wheel spin of each driven wheel is compared with a threshold to detect...
5265693 Integrated traction control system  
A traction control system provides coordinated use of axle torque management via engine spark, engine fuel, and transmission gear ratio. Primary torque management is provided by retarding the...
5265705 Method of preventing wheel loader from slipping  
A method of preventing a wheel loader from slipping, aiming at reducing the amount of slip of the loader during excavating operation using it, and preventing the decline in operational efficiency...
5263548 Vehicle slip control system  
A slip control system for a vehicle having a differential which distributes engine output to left and right driving wheels suppresses the engine output when the slip of at least one of the driving...
5262952 Slip control system for motor vehicle  
A slip control system for a motor vehicle controls slips in driving wheels and includes a sensor for detecting a slip ratio of each driving wheel and a traction control system for decreasing a slip...
5261503 Adaptive steering control system  
The steering stability of a moving vehicle is maintained by measuring an actual yaw rate of the vehicle and determining a desired yaw rate of the vehicle and producing an output signal in response...
5259476 Torque distribution control system for a four-wheel drive motor vehicle  
An ideal lateral acceleration is calculated based on vehicle speed and steering angle, and an actual lateral acceleration is calculated based on a lateral acceleration detected by a lateral G...