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31. 发明申请

US20050061577A1 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US20050061577A1
公开(公告)日：2005-03-24
申请号：US10927528
申请日：2004-08-27
申请人： Yoshinobu Shimizu , Shinya Aono , Akihiro Nishiyama
发明人： Yoshinobu Shimizu , Shinya Aono , Akihiro Nishiyama
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D113/00 , B62D119/00
CPC分类号： B62D5/0463
摘要： An electric power steering apparatus which transmits a driving force of an electric motor to a steering mechanism for steering assist. The apparatus is provided with: a torque sensor which detects a steering torque applied to an operation member for steering a vehicle; a basic assist characteristic determining section which determines a basic assist characteristic defining a basic characteristic of a motor driving target value for the steering torque; a motor driving target value determining section which determines the motor driving target value for the steering torque in accordance with a modified assist characteristic prepared by shifting the basic assist characteristic along a steering torque coordinate axis; a shift amount determining section which determines the amount of the shift from the basic assist characteristic to the modified assist characteristic on the basis of the steering torque; and a motor driving section which drives the electric motor on the basis of the motor driving target value.
摘要翻译：一种将电动机的驱动力传递到转向辅助转向机构的电动助力转向装置。该装置设置有：扭矩传感器，其检测施加到用于转向车辆的操作构件的转向扭矩; 基本辅助特性确定部，其确定限定所述转向转矩的电动机驱动目标值的基本特性的基本辅助特性; 电动机驱动目标值确定部，其根据通过沿着转向扭矩坐标轴移动所述基本辅助特性而准备的改进的辅助特性来确定所述转向转矩的电动机驱动目标值; 换档量确定部，其基于转向扭矩确定从基本辅助特性到修正辅助特性的换档量; 以及基于电动机驱动目标值驱动电动机的电动机驱动部。

32. 发明授权

US06250418B1 Power steering apparatus 有权
标题翻译：动力转向装置
公开(公告)号：US06250418B1
公开(公告)日：2001-06-26
申请号：US09310140
申请日：1999-05-12
申请人： Yoshinobu Shimizu , Hirofumi Matsuoka
发明人： Yoshinobu Shimizu , Hirofumi Matsuoka
IPC分类号： B62D506
CPC分类号： B62D5/065
摘要： A power steering apparatus is provided, which is adapted to generate a steering assist force by a hydraulic pressure of a pump driven by an electric motor. The apparatus includes: a pulse width modulation control circuit for controlling the electric motor through a pulse width modulation control; a load detection circuit for detecting a load applied on the electric motor; and a control circuit for progressively increasing the PWM duty of the pulse width modulation control circuit up to 100% if the load on the electric motor is not lower than a predetermined level.
摘要翻译：提供一种动力转向装置，其适于通过由电动机驱动的泵的液压产生转向辅助力。该装置包括：脉冲宽度调制控制电路，用于通过脉宽调制控制来控制电动机; 用于检测施加在电动机上的负载的负载检测电路; 以及如果电动机上的负载不低于预定水平，则逐渐增加脉宽调制控制电路的PWM占空比达到100％的控制电路。

33. 发明授权

US5762160A Power steering device 失效
标题翻译：动力转向装置
公开(公告)号：US5762160A
公开(公告)日：1998-06-09
申请号：US625851
申请日：1996-04-04
申请人： Yoshinobu Shimizu
发明人： Yoshinobu Shimizu
IPC分类号： B62D6/00 , B62D5/04 , B62D15/02 , G01S13/93 , B60R21/00
CPC分类号： B62D5/0463 , B62D15/0265 , G01S13/931 , G01S2013/9332 , G01S2013/9342 , G01S2013/9353 , G01S2013/9364 , G01S2013/9367 , G01S2013/9385
摘要： A power steering device uses a control value set in accordance with a vehicle's detected steering torque to control an actuator, which generates steering assistance power. When the vehicle appears to be on a collision course with an obstacle detected in its steering direction, the control value is modified so as to inhibit the steering. The control value after the modification for the steering inhibition is a function of the control value prior to the modification. When the detected value of the steering torque is greater than the preset value, the function is modified such that the degree of steering inhibition is increased by comparison with a situation in which the detected torque is less than the preset value.
摘要翻译：动力转向装置使用根据车辆检测到的转向转矩设定的控制值来控制产生转向辅助动力的致动器。当车辆看起来处于与其转向方向上检测到障碍物的碰撞过程时，控制值被修改以抑制转向。转向抑制修正后的控制值是变更前的控制值的函数。当转向转矩的检测值大于预设值时，通过与检测转矩小于预设值的情况相比，改变功能，使得转向抑制的程度增加。

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