发明名称 |
Failure detection mechanism for microcontroller based control system |
摘要 |
<p>A control system comprises a controller (4) for controlling an actuator (9), for instance of an electrically power assisted vehicle steering system. An unstable circuit, such as first and second cascade connected integrators (13, 14, 19-24) has an input connected to the controller (4) and an output connected to a detector (35), which signals an error when the output signal of the unstable circuit is outside an acceptable range. During normal operation, the controller (4) supplies a signal to the unstable circuit (13, 14, 19-24) such that its output signal remains within the acceptable range. The error signal may be used to disable the actuator (9), for instance so as to remove power assistance from steering system. <MATH></p> |
申请公布号 |
EP0701207(A1) |
申请公布日期 |
1996.03.13 |
申请号 |
EP19950306164 |
申请日期 |
1995.09.04 |
申请人 |
LUCAS INDUSTRIES PUBLIC LIMITED COMPANY |
发明人 |
IRONSIDE, JOHN MICHAEL;WILSON-JONES, RUSSEL;WILLIAMS, ANDREW JAMES STEPHEN;NICHOLSON, BRIAN GRAHAM;SAINSBURY, CLIVE ROGER |
分类号 |
G05B11/36;G05B11/32;B62D5/04;G05B9/02;G05B23/02;G06F11/00;(IPC1-7):G06F11/00 |
主分类号 |
G05B11/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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