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| Number | Title | Issue Date |
| 8177019 | Steering device for vehicle It is one object of the present invention to provide a steering device for a vehicle improving a resolution of detecting a steering reaction force thereby to control precisely a reaction actuator and to improve a steering feeling. The steering device for the ... | 05/15/2012 |
| 8177020 | Control device for the active steering of a vehicle A control device for the active steering of a vehicle comprising a driving differential that is positioned between a steering wheel and steering control means, said differential which furthermore receives at a first input a counter-steering command supplied by a tur... | 05/15/2012 |
| 8162096 | Vehicle having a variable assist power steering assembly A wheeled vehicle (10) has a power steering assembly. The vehicle can operate in an AWD mode and a 2WD mode. The degree of steering assist provided by the power steering assembly is determined from one of various steering maps (8A-8D; 114... | 04/24/2012 |
| 8100223 | Systems and methods for determining an absolute position of a motor in an active front steering system of a vehicle Systems and methods for determining an absolute position of a motor of an active front steering system of the vehicle are provided. In particular, the systems and methods accurately determine an absolute position of the motor upon startup of the active front steerin... | 01/24/2012 |
| 8091679 | Electric power steering device A highly safe electric power steering device including a control device for determining the failure of a motor current detector based on the difference between the motor current estimate value and the detected motor current value is provided. The abnormality determi... | 01/10/2012 |
| 8066094 | Electric power steering device A steering shaft is composed of an upper shaft, a lower shaft, an input shaft, and an output shaft. The upper shaft, the lower shaft, and the input shaft can rotate together, and the input shaft and the output shaft are relatively rotatably coupled to each other via... | 11/29/2011 |
| 8051945 | Electric power steering system, controller, and method of operation An electric power steering system for a vehicle includes a motor for providing assistance in turning the wheels of the vehicle. The motor is electrically connected to a controller. The controller includes a power device, such as a power transistor, electrically conn... | 11/08/2011 |
| 8037964 | Electric power steering apparatus When stopping operation of an electric power steering apparatus, a motor relay is kept in an on-state even after a power supply relay is in an off-state. A drive control portion sets a target value of a d-axis current to a value other than zero and sets a target val... | 10/18/2011 |
| 7992672 | Electric power steering system An electric power steering system includes a steering wheel, a rack-and-pinion type steering gear box connected to the steering wheel, a steering torque sensor, a pinion shaft, and a steering actuator mounted on the pinion shaft to assist a steering operation conduc... | 08/09/2011 |
| 7984786 | Electric power steering device An electric power steering device, including an electric motor supplied with power from a power supply device to generate a predetermined steering assistance force for a steered wheel, and an assistance control device the controls the amount of electrical power supp... | 07/26/2011 |
| 7975801 | Apparatus for controlling vehicle Tire-uniformity components may generate a lateral force on a vehicle body, when the vehicle is in a turning movement. The lateral force may cause vibrations on the vehicle body. The controller controls a motor of an electric power steering system to modulate an assi... | 07/12/2011 |
| 7954593 | Method for compensating for drive influences on the steering system of a vehicle using an electric power steering system The invention relates to a method for compensating for drive influences of a drive train of a motor vehicle on its steering system, said motor vehicle having an electric power steering system. A drive train simulation model which is integrated into the motor vehicle... | 06/07/2011 |
| 7954594 | Vehicle steering apparatus A vehicle steering apparatus, which includes: a steering system connection member connecting a steering wheel and a tire; an electric generator installed in the steering system connection member so as to adjusting a steering force of the steering wheel; and a contro... | 06/07/2011 |
| 7950495 | Steering system and method for adapting return torque relative to hand wheel speed 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... | 05/31/2011 |
| 7926613 | Steering system for vehicle A vehicle steering system including: (a) a steering operation member; (b) a movement-amount variably transmitting device including: (b-1) a housing fixed to a vehicle body; (b-2) a differential mechanism including (i) a first element connected to the steering operat... | 04/19/2011 |
| 7918306 | Electric power steering apparatus In an electric power steering apparatus, a phase control characteristic for a signal corresponding to detected steering torque is changed according to the judgment whether the steering is in a return steering state or a feed steering state, so that a response of a v... | 04/05/2011 |
| 7913804 | Electric power steering system In an electric power steering system for a vehicle that controls a force that urges a steering wheel toward a neutral position thereof, a control unit (21) for the system is configured such that an electric motor (9) for providing an assisting force pr... | 03/29/2011 |
| 7913805 | Electric power steering apparatus A rotational angle sensor used in an electric power steering apparatus detects a rotational angle of a motor shaft at a portion on a steering system side, as a motor rotational angle (θm). A MPU sets a base correction amount (Δθ′m) based on a q-axis actual curr... | 03/29/2011 |
| 7913803 | Vehicular steering apparatus with capability of providing suitable steering angle correction and power assistance A vehicular steering apparatus according to the invention includes a steering angle correction mechanism, a steering power assist mechanism, and a controller. The steering angle correction mechanism works to provide a correction steering angle to a steerable road wh... | 03/29/2011 |
| 7909131 | Electric power steering apparatus A microcomputer is provided with an extracting section capable of extracting a specific frequency component from an input signal. The extracting section extracts, from a pinion angle corresponding to a signal indicating the state of a steering system, a frequency co... | 03/22/2011 |
| 7909132 | Apparatus for use in turning steerable vehicle wheels An approved apparatus (10) for turning steerable wheels (14,16) of a vehicle includes a pinion (28) which is disposed in meshing engagement with a rack portion (32) of a steering member (12). A steering column (22) is connec... | 03/22/2011 |
| 7882925 | Vehicle steering apparatus A vehicle steering apparatus utilizing SBW capable of downsizing an expensive turning-power motor, in which a steering mechanism 20 provided with a steering wheel 21 maneuvered by a driver is mechanically separated from a turning mechanism 30 fo... | 02/08/2011 |
| 7878295 | Vehicle steering apparatus A vehicle steering apparatus 1 includes an EPS actuator 17 and an EPS ECU 18 that controls the EPS actuator 17. The EPS actuator 17 applies an assist force that assists a steering operation. A microcomputer 43 of the EPS ECU... | 02/01/2011 |
| 7849957 | Control apparatus for electric power steering An electric power steering apparatus including a steering angle detection part that detects a steering angle of a steering wheel and outputs a steering angle signal, a steering control unit that controls a motor to give an assist torque to the steering wheel, an abn... | 12/14/2010 |
| 7837004 | Steering assisting system for vehicle A steering assisting system has a variable transfer ratio steering apparatus and an electric power steering apparatus. The variable transfer ratio steering apparatus has an electric motor for a rotation transfer ratio varying operation. When a predetermined failure ... | 11/23/2010 |
| 7828112 | Electric power steering device An electric power steering apparatus in which, when an abnormality is generated in an electric power steering apparatus, an assist is reduced smaller than normal when a steering burden is estimated to be small; and the assist can be increased to normal and the steer... | 11/09/2010 |
| 7810608 | Steering apparatus for vehicle An electronic control unit inputs a side slip angle β of a vehicle body. The unit calculates a dynamic zero point δo for reducing a lateral force generated in the vehicle due to the side slip angle β of the vehicle body. The unit calculates a steering angle δa, ... | 10/12/2010 |
| 7806225 | Steering system motor A plurality of magnetic pole bodies, provided on a stator of a steering motor, are divided into two electrically independent groups. Each group includes i) six magnetic pole bodies that are arranged in succession and ii) a corresponding number of magnetic pole bodie... | 10/05/2010 |
| 7793754 | Electric steering system for rapidly increasing damper gain after steering speed exceeds a specific value An electric steering system includes a device for measuring a steering input into a steering system; a device for measuring a steering speed; a section for computing a target current based on the steering input; and a control section for applying a steering power to... | 09/14/2010 |
| 7793755 | Steering system for vehicle A steering system for a vehicle is disclosed. The steering system includes variable gear ratio steering apparatus, a first ECU for controlling the apparatus, an electric power steering apparatus, a second ECU for controlling the apparatus, The steering system furthe... | 09/14/2010 |
| 7753162 | Vehicle steering apparatus and vehicle steering method A vehicle steering apparatus includes a vehicle steering system and a supplemental steering force applying device. The supplemental steering force applying device is configured and arranged to apply a supplemental steering force to the vehicle steering system to red... | 07/13/2010 |
| 7743875 | Power steering apparatus having failure detection device for rotation angle sensors A power steering apparatus has a steering power assisting system coupled to tire wheels and a variable gear transfer system coupled to a steering wheel. The steering power assisting system includes a torsion bar rotation sensor and a first actuator rotation sensor t... | 06/29/2010 |
| 7708109 | Electric power steering apparatus An ECU determines whether the orientation of the vehicle is deflecting at the time of braking. In addition, in a case where it is determined that the orientation of the vehicle is deflecting, the ECU controls operation of an EPS actuator in order to reduce the assis... | 05/04/2010 |
| 7703571 | Determination of the absolute position of a steering system through a linear sensor on the rack The invention relates to a steering system of a motor vehicle with a rack, which is connected on the end side with steerable wheels and which pivots said wheels through a lateral movement. The steering system has a position sensor which continuously determines the p... | 04/27/2010 |
| 7699137 | Motor-driven steering controller and automobile anti-skid controller A motor-driven steering controller for controlling a steering wheel of a vehicle. The controller includes a steering torque controlling unit, a braking force estimating unit, a right and left braking force difference estimating unit and an assist steering torque pro... | 04/20/2010 |
| 7690477 | Vehicular steering system A vehicular steering system can suppress, even upon a change in a neutral position of a steering wheel, a right and left difference in the behavior of a vehicle by keeping neutral positions of steerable road wheels from the start of control. The system includes a st... | 04/06/2010 |
| 7686126 | Electric motor assisted steering apparatus An electromechanical steering device for a motor vehicle having at least one electric motor and power electronics for controlling the electric motor includes at least one temperature sensor for measuring the temperature of the power electronics and/or the ambient te... | 03/30/2010 |
| 7669691 | Steering device for vehicle A steering device for a vehicle includes a planet gear mechanism which can vary transmission ratio, and a lock mechanism for fixing the transmission ratio. The planet gear mechanism includes a first sun gear connected to a steering member, a second sun gear connecte... | 03/02/2010 |
| 7661507 | Control method for a reaction force device in a power steering device In a control method for a motor 10 for generating a reaction force when a driver operates a steering wheel, as a behavior of a vehicle increases, a larger reaction force to the behavior is generated. When an anti-lock brake system is operated, the reaction fo... | 02/16/2010 |
| 7628247 | Electric power steering device equipped with automatic steering function An electric power steering device for automotive vehicles which is capable of minimizing a driver's steering effort. The electric power steering device is designed to perform an automatic steering control. When a steering effort has fallen within a range of steering... | 12/08/2009 |
