Vehicle controller
First Claim
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1. A vehicle controller comprising:
- a control circuit receiving a first signal and outputting a driving signal;
an actuator driving circuit receiving the driving signal from said control circuit and outputting a second signal;
a monitoring circuit for comparing the first signal with a third signal and outputting a failure detected signal to said actuator driving circuit when a difference between the first signal and the third signal exceeds a predetermined value; and
an actuator which is driven by the actuator driving circuit wherein;
the first signal is a control command value which is used for controlling a control target,the control target is driven by the actuator, andthe third signal is a control target status signal which is fed back from the control target.
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Abstract
A vehicle controller which can realize a reduced cost and high reliability at the same time. A control target status signal outputted from a control target is inputted to a monitoring unit. The monitoring unit compares a control command value with the control target status signal to determine whether the control target operates normally as per the control command value. When the monitoring unit determines that the control target does not operate normally, it outputs a failure detected signal to an actuator driving unit.
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11 Claims
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1. A vehicle controller comprising:
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a control circuit receiving a first signal and outputting a driving signal; an actuator driving circuit receiving the driving signal from said control circuit and outputting a second signal; a monitoring circuit for comparing the first signal with a third signal and outputting a failure detected signal to said actuator driving circuit when a difference between the first signal and the third signal exceeds a predetermined value; and an actuator which is driven by the actuator driving circuit wherein; the first signal is a control command value which is used for controlling a control target, the control target is driven by the actuator, and the third signal is a control target status signal which is fed back from the control target. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification