Vehicle controller
First Claim
Patent Images
1. A vehicle controller comprising:
- a control circuit receiving a first signal from an exterior and outputting a driving signal;
an actuator driving circuit receiving the driving signal from said control circuit and outputting a second signal to the exterior; and
a monitoring circuit for comparing the first signal with a third signal from the exterior 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.
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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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Citations
20 Claims
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1. A vehicle controller comprising:
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a control circuit receiving a first signal from an exterior and outputting a driving signal;
an actuator driving circuit receiving the driving signal from said control circuit and outputting a second signal to the exterior; and
a monitoring circuit for comparing the first signal with a third signal from the exterior 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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A vehicle controller comprising:
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control means receiving a control command value from an exterior and outputting a driving signal;
actuator driving means receiving the driving signal from said control means and driving an external actuator; and
monitoring means for comparing the control command value with a control target status signal outputted from an external control target and outputting a failure detected signal to said actuator driving means when a difference between the control command value and the control target status signal exceeds a predetermined value. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A vehicle controller comprising:
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a communication driver receiving a steering command value from an exterior;
a main microcomputer connected to said communication driver and outputting a driving signal;
a 3-phase bridge circuit receiving the driving signal and driving an external motor; and
a monitoring microcomputer connected to said communication driver, wherein said monitoring microcomputer receives a control target status signal outputted from an exterior steering angle sensor and outputs a failure detected signal to said 3-phase bridge circuit when a difference between the steering command value and the control target status signal exceeds an allowable error range. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification