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Class 701/42 - Feedback, transfer function or proportional and derivative (P& D) control


Subclass of Class 701 - Data processing: vehicles, navigation, and relative location
Definition: Steering control wherein the electrical data processing system
No. of patents: 471
Last issue date: 05/01/2012


1                      
NumberTitleIssue Date
8170752Parking assistance apparatus, vehicle-side apparatus of parking assistance apparatus, parking assist method, and parking assist program
A parking assistance apparatus makes it easy for a driver to grasp a relative positional relation between a vehicle and a target parking position and makes it possible to park the vehicle at the target parking position in a parking space with accuracy. An ima...
05/01/2012
8170751Detection of driver intervention during a torque overlay operation in an electric power steering system
A method for controlling an assisted steering maneuver in an electric power steering (EPS) system includes modeling steering dynamics during a torque overlay operation to generate a dynamic steering model (DSM), measuring vehicle operating values, and detecting a dr...
05/01/2012
8165757Apparatus for implementing interlock of electric power steering system
An apparatus for implementing interlock of an electric power steering system is disclosed. The interlock apparatus can generate the output torque current value for achieving the steering system interlock with current values of two phases and the rectifying positiona...
04/24/2012
8165756Steering control device for vehicle
A vehicle steering control device includes a yawing value obtaining unit which obtains a yawing value corresponding to a vehicle yawing motion, a stabilizing force calculating unit which calculates a stabilizing force for assisting an operation of a steering operati...
04/24/2012
8165755Device and method for monitoring the turn command to a steered rear wheel
A device and method for monitoring a turn command to a steered rear wheel of a vehicle with at least three steered wheels, in which a steering angle datum value for the steered rear wheel is compared against a template, the comparison being made by a computer that g...
04/24/2012
8165754Steering control system
A steering control system is connectable to a motor configured to control a steering and a LAN (Local Area Network) and is allowed to receive a control signal for controlling said motor from the LAN is received. The steering control system includes: a motor configur...
04/24/2012
8160777Electric power steering device
When an electrification failure occurs in any of the phase of a motor, a control device of an electric power steering device executes current control for generating, in each of two electrification phases other than a phase with the electrification failure, a phase c...
04/17/2012
8160776Steering apparatus, automotive vehicle with the same, and steering control method
An automotive vehicle with a steering apparatus includes a steering wheel, front and rear steerable road wheels, and a steering mechanism for steering the front and rear steerable road wheels. The steering apparatus measures a steering wheel angle of the steering wh...
04/17/2012
8160778Steering system for engineering vehicle
A hydraulic steering unit 5 generates a control pressure corresponding to the rotational quantity and rotational direction of the steering wheel 109 on the basis of pressurized oil of a pilot pump 13. Signals of pressure sensors 6a
04/17/2012
8155839Steering device for vehicle
A motor vehicle steering apparatus is provided with: a steering-angle feedforward-control-value setting unit arranged to set a steering angle value that corresponds to a steering state; a vehicle-behavior-stabilization controlling unit including a steering-angle fee...
04/10/2012
8155840Steering angle sensor and vehicle system having the steering angle sensor
A steering angle sensor and a vehicle system having the sensor are disclosed. The steering angle sensor for mounting on a vehicle comprises a main gear coupled to and rotated with a steering column; a first auxiliary gear and a second auxiliary gear meshed with the ...
04/10/2012
8155838Steering system and method for quadrant dependant adapting of return torque
A method for generating a return torque signal in an electric servo steering system of a vehicle, including the steps of: determining a current steering wheel position; determining a current vehicle speed; generating a return torque signal as a function of the steer...
04/10/2012
8150581Driving assistance system and driving assistance method
In a driving assistance system having an actuator (16) for steering steered wheels of a vehicle, a positional deviation detecting unit (9) detects a deviation of a position of the vehicle from a forward travel path of the vehicle based on information a...
04/03/2012
8150580Motor controller and electric power steering system
In a case where a computing period of a torque ripple compensation section which computes current compensation values Δid and Δiq to be caused to flow into a motor in order to prevent occurrence of a torque ripple in the motor differs from a control period of a cu...
04/03/2012
8145385Vehicle driving control apparatus and vehicle driving control method
A vehicle driving control apparatus is provided with an obstacle detecting device, a future position estimating device, an obstacle avoidance control device, and a lane change intent detecting device. The obstacle detecting device detects an existence of an obstacle...
03/27/2012
8135515Electronic control apparatus and method for a steering system
An electronic control apparatus has a microcomputer including a first CPU and a second CPU configured to perform calculation processing and control processing for a vehicle control device such as a variable gear ratio steering device. The first CPU and the second CP...
03/13/2012
8135516Steering control apparatus for vehicle and steering control method
A method for controlling a steering device with steering power support means for a motor vehicle with at least one steerable road wheel, where the steering device may include a steering shaft with a first end to adopt a steering wheel, a control device controlling s...
03/13/2012
8131427Active resetting function for a steering wheel
A method for resetting a steering wheel of a motor vehicle having electric power assisted steering, with a resetting torque being determined in order to move the steering wheel from a diffracted steering position to a neutral position. The resetting torque differs f...
03/06/2012
8126612Steering system and method for independent steering of wheels
A steering system comprises a steering wheel adapted to receive a driver's rotational input. Left and right wheel units are rotatable along a steering angle for adjusting a direction of the vehicle during the driving movement. A steering mechanism converts the rotat...
02/28/2012
8121760Adaptive steering control for a motor vehicle
An adaptive steering control system is provided for a motor vehicle. The system includes, but is not limited to a sensor for detecting a current value of an operation quantity of a steering wheel, an actor for turning steered wheels and a controller for selecting, a...
02/21/2012
8103411Electric power assisted steering yaw damping method
The invention relates to a method and an apparatus for electrically controlled assistance to a vehicle. In order to stabilize a vehicle in the event of oversteering, the invention provides that a nominal yaw damping torque is determined and is multiplied by an overs...
01/24/2012
8090502Method and device for reducing unwanted excitations at a steering wheel
A device and a method for reducing unwanted or undesireable excitations at a steering wheel include a sensor system with which unwanted excitation at a steering wheel and/or steering gear can be sensed. A closed-loop control unit is configured to generate an additio...
01/03/2012
8090503Method for determining absolute steering wheel angle from a single-turn steering wheel angle sensor
A method and algorithm for determining a steering wheel angle of a vehicle steering mechanism upon power up of a vehicle using a single-turn steering wheel angle sensor by eliminating plausible steering wheel angles until one and only one steering wheel angle possib...
01/03/2012
8086374Steering system
There is provided a steering system allowing a comfortable steering operation even if a driver quickly turns a steering wheel when a transfer ratio is quickened in a low vehicle speed range. In the steering system that changes the transfer ratio of a steering angle ...
12/27/2011
8082080Electric power steering apparatus
An electric power steering (EPS) apparatus 1 includes a motor 12, an EPS actuator 10, a torque sensor 14, and an ECU 11. The EPS actuator 10 uses the motor 12 as a drive source to apply assist force to a steering syst...
12/20/2011
8078361Method and device for assisting a motor vehicle server in the vehicle stabilization
Disclosed is a method for assisting an operator of a vehicle in adjusting a nominal steering angle at steerable wheels of the vehicle for the vehicle stabilization. An additional steering torque is applied to the steering line of the vehicle, which is determined dep...
12/13/2011
8073595Lane deviation prevention device
An apparatus to prevent a vehicle from deviating from a lane of travel includes an acquisition device configured to measure a yaw angle between the vehicle and the lane of travel, a lane deviation controller configured to output a yaw moment to maintain the vehicle ...
12/06/2011
8050823Method and apparatus for controlling lateral stability of vehicle
The present apparatus stabilizes the behavior of the vehicle when a lateral disturbance occurs and includes a lateral disturbance detection unit, a target yaw rate computation unit and a vehicle yaw rate control unit. The lateral disturbance detection unit detects a...
11/01/2011
8050824Electric power steering apparatus
An assist gradient Ra and also an F/B gain gradient Rp are inputted to an assist gradient compensation control unit. The F/B gradient Rp is added to the assist gradient Ra in an adder and the sum obtained is inputted into a switching control unit. The assist gradien...
11/01/2011
8050825Electric power-steering control apparatus
A steering-torque detecting unit detects a steering torque applied by a driver as a steering torque signal. A phase-lag compensation unit performs an operation having a frequency response characteristic of multiplying a phase-lag compensation by a constant for the s...
11/01/2011
8046134Steering system having multiple strategies and variable deadzone
A steering system for a machine having at least one steerable traction device is disclosed. The steering system may have a steering actuator operatively connected to the at least one steerable traction device, and a travel speed sensor configured to generate a signa...
10/25/2011
8046133Steering apparatus
This steering apparatus is capable of changing and controlling a ratio of a turning angle of a steered wheel to an operation amount of an operation member, wherein the ratio is reduced when an operation speed of the operation member is higher than a predetermined op...
10/25/2011
8036793Vehicle steering control without mechanical connection between the steering wheel and the steered wheels
A steering control system is provided for a vehicle with a steered wheel. The vehicle includes a control member that maneuvers within a range between leftward and rightward stops, and that delivers a requested steering signal. The steering control system includes: a...
10/11/2011
8032283Angle measuring apparatus for measuring an absolute angular position
An angle measuring device for measuring an absolute angular position is described herein. The angle measuring device comprises a flexible pulling element guided directly or indirectly via a shaft whose angle of rotation (φ) is to be detected, with different circumf...
10/04/2011
8027767Method for controlling a vehicle steering system
Systems and methods for controlling a vehicle steering system are provided. In one exemplary embodiment, the method includes receiving a desired front road wheel angle signal at a controller. The desired front road wheel angle signal is indicative of a desired front...
09/27/2011
8019508Motor-driven power steering apparatus
In a motor-driven power steering apparatus, there is provided a correction coefficient memory previously storing an output correction coefficient to be multiplied by a current control signal applied to an electric motor at certain points in a range of temperatures i...
09/13/2011
8010254Vehicle steering controller
A vehicle steering controller produces a steering system friction value and a tire lateral force value. A steering reactive force having a magnitude based on the tire lateral force value and the steering system friction value is generated for application to a steeri...
08/30/2011
8005594Control apparatus for electric power steering apparatus
The present invention provides a control apparatus for an electric power steering apparatus comprises: a steering assist command value calculating section; a current control section that calculates a voltage command value; and a motor driving section that drives a m...
08/23/2011
7996129Vehicular behavior controller
A vehicular behavior controller is disclosed. The controller comprises a turning force application mechanism and a stabilization controller. The turning force application mechanism applies a turning force to a vehicle. The stabilization controller is operable to reg...
08/09/2011
7996130Driver workload-based vehicle stability enhancement system
A vehicle stability enhancement system that is adapted for an estimated driver workload. The system includes a driver workload estimation processor that estimates the driver workload based on certain factors, such as the vehicle speed or driver-behavior factors. The...
08/09/2011
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