Patent ID: 8311700

Claim:
A control apparatus for a vehicle, comprising: a microcomputer that includes: a signal processing device that computes a control signal, which is used in a control operation of the vehicle, based on an analogue-to-digital converted output signal, which is outputted from at least one sensor installed in the vehicle and is converted from analogue to digital; a control abnormality diagnosis device that determines whether a control abnormality of the microcomputer exists based on the control signal; and a signal abnormality diagnosis device that determines whether an operational abnormality of the signal processing device exists based on a relationship between the analogue-to-digital converted output signal of the at least one sensor and the control signal; and a monitor device that determines whether at least one of an operational abnormality of the control abnormality diagnosis device or an operational abnormality of the signal abnormality diagnosis device exists by monitoring an operational state of the control abnormality diagnosis device and an operational state of the signal abnormality diagnosis device, wherein the monitor device is provided separately from the microcomputer.