公开(公告)号：US5828973A

公开(公告)日：1998-10-27

申请号：US616632

申请日：1996-03-15

Applicant: Kanji Takeuchi ,  Takeshi Sawada

Inventor： Kanji Takeuchi ,  Takeshi Sawada

IPC: B62D5/04 ,  B62D6/10

CPC classification number: B62D5/0466

Abstract: An electric power steering apparatus for recovering a steering wheel to its neutral position based on the speeds of the steered wheels of a vehicle. In response to a steering torque signal from a torque sensor, assisting torque by a motor is controlled in a torque servo system from a phase compensating filter to a current detecting unit. A microcomputer calculates a speed ratio of left and right wheels based on wheel speeds detected by wheel speed sensors. Recovery compensating torque is obtained from the speed ratio of the left and right wheels, and a corresponding signal is output to an addition calculating unit. The addition calculating unit adds the steering torque signal and the signal representing the recovery compensating torque to obtain a recovery compensated signal. Based on the recovery compensated signal, the assisting torque is controlled to recover the steering to its neutral position.

Abstract translation: 一种用于基于车辆的转向轮的速度将方向盘恢复到其中立位置的电动助力转向装置。 响应于来自转矩传感器的转向转矩信号，由电动机的辅助转矩在相位补偿滤波器到电流检测单元的转矩伺服系统中被控制。 微型计算机基于由车轮速度传感器检测到的车轮速度来计算左右车轮的速比。 从左右车轮的速比获得恢复补偿扭矩，相应的信号输出到加法运算部。 相加计算单元将转向转矩信号和表示恢复补偿转矩的信号相加以获得恢复补偿信号。 基于恢复补偿信号，控制辅助扭矩以将转向恢复到其中立位置。

公开(公告)号：US5236335A

公开(公告)日：1993-08-17

申请号：US791376

申请日：1991-11-14

Applicant: Kanji Takeuchi ,  Yousuke Setaka

Inventor： Kanji Takeuchi ,  Yousuke Setaka

IPC: B62D5/04 ,  B62D6/00 ,  B62D101/00 ,  B62D113/00 ,  B62D119/00 ,  B62D137/00

CPC classification number: B62D6/003 ,  B62D5/001 ,  B62D5/043 ,  B62D5/0481 ,  B62D5/0484 ,  B62D6/008

Abstract: A front-wheel steering system, which has a clearance between a steering shaft and a pinion shaft so that the two shafts will be out of contact when the relative angular position of these shafts is within the range of the angle .theta..sub.1. A driving motor drives the pinion shaft 9 within the range of angle .theta.1 and a mechanical clutch 8 transmits transmitting the driving torque of the driving motor to the pinion shaft 9. This mechanical clutch 8 is designed to be disconnected by the driver's steering power when the relative angle has exceeded the angle .theta..sub.1.

Abstract translation: 前轮转向系统，其在转向轴和小齿轮轴之间具有间隙，使得当这些轴的相对角位置在角度θ1的范围内时，两个轴将不接触。驱动电动机 在角度θ1的范围内驱动小齿轮轴9，并且机械离合器8将驱动电动机的驱动转矩传递到小齿轮轴9.该机械离合器8被设计成当驾驶员的转向功率相对于角度 已超过角度θ1。