公开(公告)号：US5663713A

公开(公告)日：1997-09-02

申请号：US526046

申请日：1995-09-08

申请人： John Michael Ironside ,  Andrew James Stephen Williams ,  Brian Graham Nicholson ,  Russel Wilson-Jones ,  Clive Roger Sainsbury

发明人： John Michael Ironside ,  Andrew James Stephen Williams ,  Brian Graham Nicholson ,  Russel Wilson-Jones ,  Clive Roger Sainsbury

IPC分类号： G05B11/32 ,  B62D5/04 ,  G05B9/02 ,  G05B11/36 ,  G05B23/02 ,  G06F11/00 ,  G08B21/00

CPC分类号： G06F11/0796 ,  B62D5/0493 ,  G05B9/02 ,  G06F11/0754

摘要： A control system comprises a controller for controlling an actuator, for instance of an electrically power assisted vehicle steering system. An unstable circuit, such as first and second cascade connected integrators has an input connected to the controller and an output connected to a detector, which signals an error when the output signal of the unstable circuit is outside an acceptable range. During normal operation, the controller supplies a signal to the unstable circuit such that its output signal remains within the acceptable range. The error signal may be used to disable the actuator, for instance so as to remove power assistance from steering system.

摘要翻译： 控制系统包括用于控制例如电动辅助车辆转向系统的致动器的控制器。 诸如第一和第二级联连接积分器的不稳定电路具有连接到控制器的输入和连接到检测器的输出，当不稳定电路的输出信号在可接受的范围之外时，该信号发出错误信号。 在正常操作期间，控制器向不稳定电路提供信号，使得其输出信号保持在可接受的范围内。 误差信号可以用于禁用致动器，例如以便从转向系统移除动力辅助。