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1. WO2014136516 - ELECTRIC POWER STEERING DEVICE

Publication Number WO/2014/136516
Publication Date 12.09.2014
International Application No. PCT/JP2014/052460
International Filing Date 03.02.2014
IPC
B62D 6/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
6Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
B62D 5/04 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
5Power-assisted or power-driven steering
04electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
B62D 101/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
101Road speed
B62D 113/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
113Position of parts of the steering mechanism, e.g. the steered wheels or the steering wheel
B62D 119/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
119Steering wheel torque
CPC
B62D 1/286
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
1Steering controls, i.e. means for initiating a change of direction of the vehicle
24not vehicle-mounted
28non-mechanical ; , e.g. following a line or other known markers
286Systems for interrupting non-mechanical steering due to driver intervention
B62D 15/0285
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
15Steering not otherwise provided for
02Steering position indicators ; ; Steering position determination; Steering aids
027Parking aids, e.g. instruction means
0285Parking performed automatically
B62D 5/0463
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
5Power-assisted or power-driven steering
04electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
0457characterised by control features of the drive means as such
046Controlling the motor
0463for generating assisting torque
B62D 5/0472
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
5Power-assisted or power-driven steering
04electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
0457characterised by control features of the drive means as such
046Controlling the motor
0472for damping vibrations
B62D 6/002
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
6Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
002computing target steering angles for front or rear wheels
Applicants
  • 日本精工株式会社 NSK LTD. [JP]/[JP]
Inventors
  • 椿 貴弘 TSUBAKI Takahiro
Agents
  • 安形 雄三 AGATA Yuzo
Priority Data
2013-04566307.03.2013JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) ELECTRIC POWER STEERING DEVICE
(FR) DISPOSITIF DE DIRECTION ASSISTÉE ÉLECTRIQUE
(JA) 電動パワーステアリング装置
Abstract
(EN) [Problem] To provide, in a vehicle having functions of automatic steering control and manual steering control, an electric power steering device which can achieve automatic steering control without using special components, which has a function for vibration control, and which improves the accuracy of automatic steering by correcting the target steering angle with the calculated actual steering angle. [Solution] This electric power steering device is provided with a steering angle control unit which, during automatic steering control, calculates a motor current command value (2) such that the actual steering angle approaches the target steering angle, and with a switching unit which inputs a motor current command value (1) and motor current command value (2) and is switched by a switching signal, wherein the steering angle control unit comprises an actual steering angle calculation unit for calculating the actual steering angle (2) on the basis of the actual steering angle (1), the steering torque and the motor rotation angle, and calculates the motor current command value (2) on the basis of the target steering angle and the actual steering angle (2).
(FR) L'invention vise à procurer, dans un véhicule ayant des fonctions de commande de direction automatique et de commande de direction manuelle, un dispositif de direction assistée électrique qui peut produire une commande de direction automatique sans utiliser de composants spéciaux, qui a une fonction de contrôle de vibration, et qui améliore la précision d'une direction automatique par correction de l'angle de direction cible avec l'angle de direction effectif calculé. A cet effet, l'invention porte sur un dispositif de direction assistée électrique, lequel dispositif comporte une unité de commande d'angle de direction, qui, pendant une commande de direction automatique, calcule une valeur d'ordre de courant de moteur (2) de telle sorte que l'angle de direction effectif s'approche de l'angle de direction cible, et une unité de commutation qui entre une valeur d'ordre de courant de moteur (1) et une valeur d'ordre de courant de moteur (2), et qui est commutée par un signal de commutation, l'unité de commande d'angle de direction comprenant une unité de calcul d'angle de direction effectif pour calculer l'angle de direction effectif (2) sur la base de l'angle de direction effectif (1), du couple de direction et de l'angle de rotation de moteur, et qui calcule la valeur d'ordre de courant de moteur (2) sur la base de l'angle de direction cible et de l'angle de direction effectif (2).
(JA) 【課題】自動操舵制御と手動操舵制御の機能を有する車両において、特別な部品を用いずに自動操舵制御を行い得るようにすると共に、制振制御の機能を有し、目標操舵角を、演算した実操舵角で補正することで自動操舵の精度を向上した電動パワーステアリング装置を提供する。 【解決手段】自動操舵制御時に、目標操舵角に実操舵角1を近づけるようにモータ電流指令値2を算出する舵角制御部と、モータ電流指令値1及びモータ電流指令値2を入力し、切換信号により切り換えられる切換部とを具備し、舵角制御部が、前記舵角制御部が、実操舵角1、操舵トルク及びモータ回転角に基づいて実操舵角2を演算する実舵角演算部を具備し、目標操舵角、実操舵角2に基づいてモータ電流指令値2を算出する。
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