Control device of internal combustion engine and method of judging failure of sensor
First Claim
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1. A control device of an internal combustion engine comprising:
- an internal combustion engine main body mounted to a vehicle;
a start preparation apparatus operating on the basis of an output from a specific sensor given as a trigger at least before said internal combustion engine main body starts; and
a failure judging device for judging that said sensor has failed when an output of said sensor when said vehicle is running is different from a defined value.
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Abstract
In a control device, in a control device of an internal combustion engine provided with an internal combustion engine main body mounted to a vehicle and a heater operating on the basis of an output from a specific sensor given as a trigger at least before the internal combustion engine main body starts, whether or not the heater is operated before the start is stored, and it is judged that the sensor has failed when operation of the heater is not stored.
11 Citations
19 Claims
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1. A control device of an internal combustion engine comprising:
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an internal combustion engine main body mounted to a vehicle;
a start preparation apparatus operating on the basis of an output from a specific sensor given as a trigger at least before said internal combustion engine main body starts; and
a failure judging device for judging that said sensor has failed when an output of said sensor when said vehicle is running is different from a defined value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A control device of an internal combustion engine comprising:
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an internal combustion engine main body mounted to a vehicle;
a start preparation apparatus operating on the basis of an output from a specific sensor given as a trigger at least before said internal combustion engine main body starts; and
a failure judging device storing whether or not said start preparation apparatus is operated before said start and judging that said sensor has failed when operation of said start preparation apparatus is not stored. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of judging a failure of a sensor in an internal combustion engine provided with an internal combustion engine main body mounted to a vehicle, and a start preparation apparatus operating on the basis of an output from a specific sensor given as a trigger at least before said internal combustion engine main body starts, comprising the steps of:
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detecting an output from said sensor; and
judging that said sensor has failed when the output of said sensor when said vehicle is running is different from a defined value.
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19. A method of judging a failure of a sensor in an internal combustion engine provided with an internal combustion engine main body mounted to a vehicle, and a start preparation apparatus operating on the basis of an output from a specific sensor given as a trigger at least before said internal combustion engine main body starts, comprising the steps of:
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storing whether or not said start preparation apparatus is operated before said start; and
judging that said sensor has failed when operation of said start preparation apparatus is not stored.
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Specification