公开(公告)号：US06820715B2

公开(公告)日：2004-11-23

申请号：US10301083

申请日：2002-11-21

Applicant: Daniel Laurent ,  Jean-Jacques Charaudeau ,  Pierre Varenne

Inventor： Daniel Laurent ,  Jean-Jacques Charaudeau ,  Pierre Varenne

IPC: B62D0504

CPC classification number: H02K7/06 ,  B62D5/003 ,  B62D5/0424 ,  H02K16/00

Abstract: A steering system for a vehicle includes a steerable wheel 1 capable of being steered, a steering wheel 20, and an electrical actuator 3 for altering the steering angle of the steerable wheel. The electrical actuator 3 has three electric motors 31, 32, 33 which act in parallel and three controllers 61, 62, 63 which operate in parallel, each forming part of an electrical control channel for the steering angle. The controller of each electrical channel receives one of the three electrical signals in the control channels and is connected to one of the position sensors and drives one of the electric motors in order to set the said steering angle. The torques delivered by the respective motors are added together in normal operation. The system also includes an interconnection bus 8 for the three electrical control channels, and means for detecting a discrepancy in the status of one electrical channel with respect to the other two, in order to give a malfunction warning and maintain operation in a downgraded mode in the event of a discrepancy.

Abstract translation: 用于车辆的转向系统包括能够转向的可转向轮1，方向盘20和用于改变可转向轮的转向角的电动致动器3。 电动执行器3具有三个并联的电动机31,32,33和三个平行操作的控制器61,62,63，每个控制器构成用于转向角的电气控制通道的一部分。 每个电气通道的控制器接收控制通道中的三个电信号中的一个，并连接到位置传感器中的一个，并驱动其中一个电动机以设定所述转向角。 各个电动机传递的转矩在正常运行中相加。 该系统还包括用于三个电气控制通道的互连总线8和用于检测相对于另外两个电气通道的一个电气通道的状态的差异的装置，以便给出故障警告并维持降级模式中的操作 事件有差异。