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5258914 |
System for limiting engine torque in dependence upon steering angle and wheel slippage
A steering angle limit value, with which the actual steering angle is compared, is determined from the reference speed and the friction coefficient. If the limit value is exceeded and an anti-slip...
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5257189 |
Speed stage shifting of automatic transmission of automobile in relation to yaw rate in steering
Whether the load on the automobile is normal or heavy or whether the automobile is in a normal, oversteering or understeering condition is detected by a rising-up performance of the yaw rate in the...
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5257192 |
Brake pressure control system for motor vehicles
A brake pressure control system for use as an antiskid braking control system, for example, for a motor vehicle, detects a skidding condition of a wheel of the motor vehicle based on a rotational...
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5255193 |
Traction control system for controlling engine output and brake for maintaining optimum wheel traction with road friction level dependent brake control
A traction control system monitors wheel slippage and variation of wheel slippage for detecting road friction condition. The traction control system selects brake control characteristics depending...
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5253931 |
Control logic for an anti-lock vehicle brake system
An automatic control logic for an anti-lock protected vehicle braking plants is provided for all-terrain operation. In this case, the standard automatic control logic for road operation is...
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5255192 |
Output control apparatus for vehicle
An output control apparatus for a vehicle includes a torque reduction device for reducing driving torque of an engine independent of manipulation by the driver and a vehicle speed detection device...
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5253728 |
Steering control method for a motor vehicle with a differential
A steering control method for a motor vehicle with a differential. The quantity and direction of a torque displacement in the state in which restricting means is locked are calculated. When the...
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5251719 |
Active torque-split control system for actively distributing driving torques applied to wheels in four-wheel drive vehicles
An active torque-split control system for actively controlling a distribution of driving torque applied to front and rear wheels in a four-wheel drive vehicle employing a transfer device including...
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5249851 |
Method and system for non-locking and non-skidding braking/traction of a vehicle wheel
System and methods for achieving optimum braking/traction for a vehicle wheel, based upon measurement of road normal and road parallel force on the wheel axle. The measuring signals are...
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5249849 |
Anti-skid control system for a part time four-wheel drive vehicle
The invention is directed to an arrangement for controlling a braking force applied to each of the road wheels of a part time four-wheel drive vehicle depending upon a braking condition, with a...
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5249641 |
Anti-skid control system for a rear drive vehicle
The invention is directed to an arrangement for controlling a braking force applied to each of road wheels of a rear drive vehicle depending upon a braking condition, with a hydraulic braking...
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5248020 |
Drive system for a tractor
A drive system for a tractor which is operable in either a two wheel or a four wheel mode of operation. The drive system includes a control apparatus which automatically establishes a drive...
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5248010 |
Acceleration slip control device for a vehicle
An acceleration slip control device for a vehicle, by which the slip between driving wheels and a road surface during a start and an acceleration of a vehicle is maintained at level ensuring a good...
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5245542 |
System for controlling the output power of motor vehicle
A motor vehicle output power control system effects a slip control process for preventing the drive wheels of a motor vehicle from slipping against unstable maneuverability and a trace control...
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5244171 |
Intermediary wheel slip sequence speed processing system for multiple axle railway vehicles
An interslip sequence slip control system for multiple wheel axle units for railway vehicles including an electronic logic network for determining whether all the axles of the vehicle are slipping...
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5243527 |
Torque-reducing engine control apparatus with emergency switching stage operable as a function of the drive engine operating point
An arrangement controls a drive engine when changing up a variable-speed transmission downstream in the power flow in order to reduce the engine torque. Given a lack of a torque reduction due to a...
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5241479 |
Switchable mode traction control method for vehicle
A traction control method for a vehicle which includes the steps of generating a braking force in drive wheel brake devices when it is determined that a drive wheel shows a slipping tendency,...
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5241478 |
Automotive traction control system
The current ignition delay angle is increased gradually until the delay angle reaches a maximum delay angle stored in a maximum delay angle storage unit when the failure of a traction control unit...
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5238081 |
Driving wheel slip control device for vehicle
A driving wheel slip device for a vehicle includes a slip detector for detecting a slip condition of a driving wheel, a fuel supply controller for controlling a fuel supply quantity to an engine of...
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5236332 |
Method of controlling an internal combustion engine
An engine control method which can switch over the valve operating property of an engine in a step-wise manner according to the operating condition of the engine and which can control the slipping...
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5235950 |
System for the electronic open-loop and/or closed-loop control of the power of an internal combustion engine of a motor vehicle
A system is suggested for the electronic open-loop control and/or closed-loop control of the power of an internal combustion engine of a motor vehicle in which the open-loop control or closed-loop...
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5225982 |
System for controlling engine output based upon slipping condition of a driving wheel of a vehicle
An engine output controlling system for a vehicle by which a driving torque produced by the engine is utilized effectively and such a possible slip of a driving wheel the vehicle that makes driving...
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5225983 |
Rear wheel steering system for motor vehicle
A rear steering control system for a motor vehicle includes an antiskid braking system which controls a braking force in a brake device in a respective wheel in accordance with a deceleration...
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5224765 |
Control system for distributing braking forces applied to left and right wheels in automotive vehicles
A control system for distributing braking forces applied to left and right wheels in an automotive vehicle, comprises two fluid pressure control valves, normally controlling a left-wheel brake...
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5224565 |
Traction control for motor vehicles
A traction control is effected by an engine torque reduction with fuelcut operation. In order to prevent deterioration of a catalytic converter during split cylinder operation, a number and an...
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5224043 |
Driving force control apparatus for motor vehicles
A driving force control apparatus for use with an automotive vehicle supported on driving wheels and driven wheels. The apparatus is arranged to provide a driving force reduction control (traction...
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5222570 |
Vehicle traction control device
A vehicle traction control device having a control device for controlling the torque of the drive wheels by controlling the throttle in order to match the slip rate of the drive wheels with a...
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5224044 |
System for controlling driving condition of automotive device associated with vehicle slip control system
A system for controlling an automotive devices, such as an automotive internal combustion engine, an engine accessory and so forth, is associated with a traction control system for cooperation...
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5221127 |
Circuit configuration for monitoring an anti-lock brake system
A circuit configuration for an anti-lock brake system, which receives input from wheel sensors positioned on the driven wheels, comprises a monitoring circuit (7) which triggers a test cycle...
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5220975 |
Drive-slip control system
In a drive-slip control system (ASR) for a motor vehicle with rear-axle drive, operating on the principle of retarding again a driven vehicle wheel having a tendency to spin by activating its wheel...
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5219038 |
Power transmission device for a four-wheel drive vehicle
A power transmission system for a four-wheel drive vehicle, comprising an engine for directly driving a primary driven axle, and a torque transmission device for transmitting drive torque from the...
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5215357 |
Regulator supply valve for adaptive braking and traction control systems
The regulator supply valve (100, 101, 200, 300, 400, 500, 600, 740) of the present invention provides regulated fluid pressure for adaptive braking and traction control systems (10, 710) operation....
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5216608 |
Apparatus and a method for estimating the friction coefficient of a road surface and controlling a driving condition of a vehicle in accordance with the estimated friction coefficient
An apparatus for effecting a method for estimating the friction coefficient of a road surface according to the present invention comprises front- and rear-wheel rotation sensors for detecting the...
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5215160 |
Part-time on-demand transfer case and method
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...
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5213177 |
Traction control system responsive to wheel speed fluctuations
A traction control system includes speed sensors (36, 38) associated with a pair of drive wheels (14, 16) for monitoring a vehicle drive train for a pronounced vibration indicative of wheel slip...
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5213178 |
Traction control system with fuel and spark control
The torque reduction of an internal combustion engine in response to an excessive acceleration spin condition is provided by a combination of disabling selected engine cylinders and spark retard....
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5212640 |
Automotive control system employing acceleration sensor and fault detecting system therefor
An automotive activity control system controls vehicular driving activity, such as power distribution for delivering driving torque generated by prime mover of the vehicle to primary and secondary...
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5212641 |
Rear wheel steering control system for vehicle
A rear wheel steering control system is provided. This system includes a traction control system which is responsive to generation of a difference in rotational speeds between front and rear wheels...
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5209203 |
Method and apparatus for controlling the torque of an engine
The torque of an internal combustion engine is controlled during acceleration by monitoring differences between engine and wheel speed in order to provide a measure of phase differences in the...
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5208755 |
System for controlling distribution of torque to left and right wheels of a motor vehicle
A differential is provided between a left and a right wheel of a motor vehicle for distributing an output torque of a transmission to the left and right wheels. A fluid operated multiple-disk...
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5208754 |
Device for calculating estimated vehicle acceleration and speed
A device for calculating estimated vehicle acceleration and speed for use in estimating vehicle speed Vv and vehicle acceleration Av, such that a subservient acceleration Az based on the wheel...
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5201383 |
Ignition timing control system for internal combustion engines
An ignition timing control system for an internal combustion engine in which an ECU sets a basic spark advance value in response to operating condition of the engine, corrects the set basic spark...
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5201570 |
Vehicle equipped with an anti-skid system
The present invention relates to a vehicle equipped with wheels coupled to fluid motors, restrictions being placed on supply or exhaust conduits of the motors. According to the invention, the...
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5201382 |
Four-wheel-steered vehicle control system
A front drive vehicle is provided with a four-wheel steering system and a traction control system. A control system for the vehicle detects whether a failure occurs in the traction control system,...
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5199401 |
Engine throttle servoactuator control system
A control system for an engine throttle valve actuator uses an actuator position feedback loop with a compensation factor which applies a reverse voltage having an amplitude based on actuator...
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5197566 |
Differential control system for four-wheel drive vehicle
A four-wheel drive vehicle has a center differential which transmits the output torque of a power plant to both front and rear wheels in such a manner as to permit the front and rear wheels to...
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5198982 |
Automotive vehicle control system for predicting road friction level
A traction control system for an automotive vehicle housing device for adjusting the driving torque delivered to driven wheels from an automotive internal combustion engine, and sensor for...
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5195037 |
Torque distribution control system for a four-wheel drive motor
A central differential is provided for distributing an output torque of a transmission to front wheels and rear wheels of a vehicle. A fluid-operated restricting device is provided for restricting...
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5193888 |
Slip control system for motor vehicle
A slip control system for a motor vehicle controls slippage of driving wheels and includes, a sensor for detecting a slip ratio of each driving wheel, a device for detecting a reduction in speed of...
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5193061 |
Slip control mechanism of a motor vehicle
A slip control mechanism of a motor vehicle has a brake provided for each driving wheel, a first detection device means for detecting slip of each driving wheel, a second detection device for...
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