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7624838 |
Electric power steering control apparatus
An electric power steering control apparatus can limit a motor impression voltage thereby to maintain an appropriate motor output even upon occurrence of a failure of a motor current detection...
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7620485 |
Method for regulating driving stability
The invention relates to a method for controlling the driving stability of a vehicle, wherein it is determined when a stable or unstable driving behavior prevails whether a tendency to a subsequent...
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7619859 |
Electric power steering device
An electric power steering device that can estimate an ambient temperature and apply current limiting without using ambient temperature detecting means is provided. The electric power steering...
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7613556 |
Vehicle steering system
In a steering-without-driving state, a larger current limit value, drive limit time and steering angle deviation threshold value are set than when a low-speed driving state occurs. An automatic...
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7610134 |
Vehicle steering system
A brake application speed is compared with a speed threshold value so as to judge whether or not a braking operation being performed is an emergency braking operation. If not the emergency braking...
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7604089 |
Storage check for locking vehicle steering system
A storage part stores an initial sum, which is obtained by summing a steering angle of a steering wheel and a rotational angle of an electric actuator before checking of unlocking of a transmission...
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7603215 |
Lane keep control apparatus and method for automotive vehicle
In lane keep control apparatus and method for an automotive vehicle, a deviation tendency detecting section detects whether the vehicle has a tendency of a deviation from a traveling traffic lane...
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7596441 |
Power steering device
In a power steering device employing a hydraulic power cylinder, a motor-driven pump, and a driving power source for the motor, a power steering control system is configured to electrically...
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7581616 |
Control system for a steer-by-wire vehicle
In a vehicle steering apparatus of a steer-by-wire system, front wheels are controlled to be turned by a computer program processing. A displacement/torque conversion section 51 converts a...
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7575092 |
Vehicle steering control device
In a vehicle steering control device, a steering torque estimation unit estimates steering torque of a steering wheel based on driving current of an electric actuator; a torque sensor detects the...
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7565230 |
Method and apparatus for improving vehicle operator performance
A method ( 700 ) for improving driver performance includes the steps of receiving vehicle operating data from the vehicle ( 702 ); monitoring an interior portion of the vehicle and receiving...
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7559405 |
Controller for electric power steering device
The present invention provides a controller of an electric power steering device which does not apply an uncomfortable feeling to a operation of steering wheel while securing a fault determination...
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7555402 |
Method for determining the angular position of the steering wheel of an automobile vehicle electric power-assisted steering system
The method consists in: determining in which actually sector the booster motor is located, a sector of the booster motor being defied by two successive poles; determining a relative angle position...
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7549501 |
Steering system and a method for controlling a vehicle
A steering system for a motor vehicle, including a steering gear and at least one tie rod, is characterized in that an actuator is provided, which can move an end section of the tie rod...
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7540351 |
Steering control system
A steering control system includes a steering wheel and a steering shaft with upper and lower shaft portions. Steering shaft torque of the lower shaft portion corresponds to torque transmitted to...
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7532966 |
Torque steer compensation algorithm
A torque steer compensation algorithm utilizing selected vehicle parameters, such as for example engine torque, accelerator pedal position, throttle position, transmission gear, and vehicle speed....
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7529605 |
Vehicle steering system for setting steering reaction without using difference between target and actual steering angles
A steering system for a vehicle, includes a control operated by a driver of the vehicle; a measuring device for measuring a quantity of operation of the control by the driver; a steering section...
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7526372 |
Steering control device
A steering control device in which a steering portion including an electric steering reaction force actuator and a steered portion including an electric steered portion actuator are mechanically...
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7516003 |
Vehicle steering system
A vehicle steering system includes: a steering actuator that imparts a steering force to a steering mechanism of a vehicle; an automatic steering controller that performs an automatic steering...
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7508637 |
Antilock system for a permanently excited electric motor drive
As an antilock system for a permanently excited electric motor drive, especially for a steering booster servo drive of a motor vehicle, in the event of a winding short-circuit, an interruption of...
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7500538 |
Control unit for electric power steering apparatus
It is an object of the present invention to provide a control unit for an electric power steering apparatus for accurately detecting an abnormality of a steering angle sensor without forming the...
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7474071 |
Electric motor regulation with controlled error intercept
A motor is controlled by a motor control signal so that it reaches a target state, which is derived from sensor data sensed by a sensor. The motor can be put into a rest state at the occurrence of...
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7424352 |
Driving situation detection system
A driving situation detection system capable of detecting driving situations swiftly with high reliability is obtained. The driving situation detection system includes real curve arithmetic means...
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7406375 |
Electric power steering apparatus and method for controlling the electric power steering apparatus
When it is determined that the torque output from the electric motor abnormally fluctuates or the torque output from the electric motor varies between clockwise and counterclockwise turning...
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7389851 |
Electric power steering apparatus
An electric power steering apparatus controlling an operation of an electric motor by a control unit based on a torque signal from a torque sensor and executing a steering assist of a steering...
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7383111 |
Steering apparatus
A steering apparatus for a vehicle includes a steering angle measuring unit, a vehicle speed measuring unit, a yaw rate measuring unit, a yaw rate-based reaction force control unit for controlling...
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7376498 |
Vehicle controller
A vehicle controller which can realize a reduced cost and high reliability at the same time. A control target status signal outputted from a control target is inputted to a monitoring unit. The...
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7366598 |
Device for estimating drift amount of lateral acceleration sensor, device for correcting output of lateral acceleration sensor, and device for estimating road surface friction state
An SAT estimating section estimates self-aligning torque (SAT) on the basis of a steering torque, which is detected by a steering torque detecting section, and an assist torque, which is detected...
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7363131 |
Re-positionable vehicle control-by-wire assembly, method, and system
A vehicle control assembly and a method and system for controlling a vehicle. The assembly includes a controller. A steer-by-wire component, a brake-by-wire component, and an accelerator-by-wire...
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7363136 |
Controller of electric power steering apparatus
An initial abnormality analysis data is reliably retained by a controller of an electric power steering apparatus. The controller of the electric power steering apparatus is constituted by...
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7349780 |
Steering angular velocity computing device and method
A steering angular velocity computing device detects a change in a steering angle, measures a required time from a time when the steering angle changed until a time when the steering angle next...
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7322439 |
Steering apparatus for steerable vehicle
A steering apparatus for a steerable vehicle includes a steering unit, an operating unit, a backup unit, and a control unit. The backup unit selectively connects/disconnects the steering unit and...
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7311173 |
Reaction control system for obtaining preferable steering feeling
A reaction control system controls a reactive force to be applied to an operating device operated by a driver of a vehicle. The system includes a device for measuring a steering speed of steering...
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7302329 |
Apparatus, system and method for magnetorheological clutch diagnostics
An apparatus and method for monitoring and diagnosing the coil temperature of a magnetorheological (MR) clutch connected to a power steering pump of a vehicle is disclosed. The apparatus includes a...
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7257475 |
Vehicle control system
A vehicle control system is provided for a vehicle that is steered by steer-by-wire, the system including a battery mounted in the vehicle, a steer-by-wire steering system that turns wheels by an...
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7254470 |
Fault tolerant torque sensor signal processing
A method for generatig a fault tolerant sensor signal for a motor control system in a vehicle steering system. The method includes receiving at least three sensor signals indicative of a sensed...
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7246679 |
Vehicle steering apparatus and method
A vehicle steering apparatus includes a steering reaction actuator that produces a steering reaction force to be applied to the manual steering unit, a steering reaction force controller that...
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7226069 |
Power-assisted steering system and difference compensating method for current detector
A power-assisted steering system includes: two or more current detectors that detects current flowing to two or more phases of a motor and outputs detected current values; a correcting unit that...
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7210554 |
Power steering system
A power steering system includes a hydraulic power cylinder, a hydraulic pump for supplying an oil pressure to the hydraulic power cylinder, an electric motor for driving the hydraulic pump, a...
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7207412 |
Motor-driven power steering system
A motor-driven power steering system includes a power assisting motor; a motor current sensor, a sample-hold circuit that has sampling section and a holding section, a timing signal generating...
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7171582 |
Method for controlling a safety-critical system which has a microcontroller
The invention relates to a method for controlling a safety-critical system, in particular of a motor vehicle, which includes a microcontroller. The microcontroller controls and/or regulates the...
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7163080 |
Method and apparatus for detecting a failed temperature sensor in an electric assist steering system
A method and system are provided for controlling an electric assist motor in a vehicle steering system during an enablement of an overuse algorithm. Electric power is provided to the electric...
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7136733 |
Fault detection in an electric power-assisted steering system
A method and system for detecting faults in an electric power-assisted steering system includes determining a voltage vector of an electric power-assisted steering motor and measuring a current...
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7127341 |
Failsafe steering device for steer-by-wire system
A failsafe steering device for a steer-by-wire system includes a main Electronic Control Unit (ECU) that detects manipulating states of a main steering wheel and a rack mechanism via a plurality of...
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7079929 |
Vehicle power steering apparatus capable of suppressing vibration of EPS motor during changes in steering angle
In a power steering apparatus employing an EPS (electrical power steering) motor coupled to a steering mechanism, when vibration of the steering mechanism is produced by twisting of tire rubber due...
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7051834 |
Power steering apparatus
In a power steering apparatus, a basic-target-rotational-speed setting portion 42 sets a basic target rotational speed Rb of an electric motor 27 on the basis of the vehicle speed and the...
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7016775 |
Controller and control method for an electric power steering apparatus
A controller controls an electric motor to provide assist power corresponding to steering operation for an electric power steering apparatus. The controller comprises a detecting device, a...
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7013241 |
Electronic control unit
In an electronic control unit having two computers, the first computer, which is an engine control microcomputer, performs multiple diagnoses and sends data regarding the diagnoses to the second...
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7007769 |
Fail-safe steering system for a vehicle
A fail-safe steering system for a vehicle, which prevents movable elements of a backup mechanism from being dragged by motions of an associated one of a steering input section and a steering output...
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7004279 |
Vehicle steering system
A vehicle steering system is provided with a primary steering system, a backup steering system and a control system that switches from the primary steering system to the backup steering system when...
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