Control apparatus for vehicle
First Claim
1. 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.
1 Assignment
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Accused Products
Abstract
In a microcomputer, a signal processing device computes a control signal, such as an accelerator position, a throttle position, based on a sensor output signal, such as an output signal of an accelerator position sensor, an output signal of a throttle position sensor. A torque control device executes a torque control operation to coincide an actual torque with a requested torque based on the control signal. Furthermore, a torque monitor device determines whether a torque increase abnormality exists based on the control signal. A signal abnormality diagnosis device determines whether an operational abnormality of the signal processing device exists based on a relationship between the sensor output signal and the control signal. A monitor IC monitors operational states of the torque monitor device and of the signal abnormality diagnosis device and determines whether an operational abnormality of the torque monitor device or of the signal abnormality diagnosis device exists.
20 Citations
7 Claims
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1. A control apparatus for a vehicle, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification