公开(公告)号：US20170166246A1

公开(公告)日：2017-06-15

申请号：US15115909

申请日：2015-02-04

Applicant: KYB CORPORATION

Inventor： Hiroyuki GOTOU ,  Hisazumi ISHIKAWA ,  Kazuhiro SASAKI ,  Yuichiro OKAMOTO ,  Nobuyuki KIMURA ,  Takayuki NAGASE ,  Kazuma YAMAZAKI

IPC: B62D5/04 ,  B62D6/02 ,  B62D6/10

CPC classification number: B62D5/0466 ,  B62D5/0409 ,  B62D6/02 ,  B62D6/10

Abstract: A electric power steering device includes a basic return command value calculation unit configured to calculate a basic return command value in a direction to return a steering wheel to a neutral position on the basis of a steering angle of the steering wheel, a return command value calculation unit configured to calculate a return command value by correcting the basic return command value by the first correction gain, and an opposite return command value calculation unit configured to calculate an opposite return command value in a direction not to return the steering wheel to the neutral position on the basis of an angular acceleration of an electric motor. A correction return command value is calculated on the basis of the return command value and the opposite return command value and the electric motor is driven by adding the correction return command value to the assist command value.

公开(公告)号：US20160347358A1

公开(公告)日：2016-12-01

申请号：US15116507

申请日：2015-02-04

Applicant: KYB CORPORATION

Inventor： Hiroyuki GOTOU ,  Noboru YOSHIDA ,  Yuichiro OKAMOTO ,  Nobuyuki KIMURA ,  Takayuki NAGASE ,  Kazuma YAMAZAKI

IPC: B62D5/04

CPC classification number: B62D5/0466 ,  B62D5/0463

Abstract: An electric power steering device for driving an electric motor 10 using an assist command value calculated on the basis of a detection result of a torque sensor 12 for detecting a steering torque to reduce a left/right difference of a remaining steering angle of a steering wheel, the electric power steering device including a basic return command value calculation unit 20 configured to calculate a basic return command value in a direction to return the steering wheel to a neutral position on the basis of a steering angle of the steering wheel, a turn/return determination unit 40 configured to determine the turn and the return of the steering wheel, a gradually changing return command value calculation unit 41 configured to calculate a gradually changing return command value, the gradually changing return command value gradually increasing, while the return of the steering wheel is determined by the turn/return determination unit, and a return command value calculation unit 50 configured to calculate a return command value by adding the gradually changing return command value to the basic return command value. The electric motor is driven by adding the return command value to the assist command value.

Abstract translation: 一种电动助力转向装置，其使用基于用于检测转向转矩的转矩传感器12的检测结果计算出的辅助指令值来驱动电动机10，以减小方向盘的剩余转向角的左右差 所述电动助力转向装置包括：基本返回指令值计算部20，其基于所述方向盘的转向角，将所述方向盘返回到中立位置的方向上的基本返回指令值计算出， 被配置为确定方向盘的转弯和返回的返回确定单元40，逐渐改变的返回指令值计算单元41，被配置为计算逐渐变化的返回指令值，逐渐变化的返回指令值逐渐增加，同时返回 方向盘由转弯/返回确定单元确定，并且返回命令值计算单元50配置 ed通过将逐渐变化的返回命令值添加到基本返回命令值来计算返回命令值。 通过将返回指令值加到辅助指令值来驱动电动机。