ABNORMALITY DIAGNOSTIC DEVICE FOR VEHICLE AND ABNORMALITY DIAGNOSTIC METHOD FOR VEHICLE
First Claim
1. An abnormality diagnostic device for a vehicle having a rear-wheel drive motor, comprising:
- a first temperature sensor that detects a temperature of the rear-wheel drive motor; and
a control device that monitors the temperature of the rear-wheel drive motor by using the first temperature sensor and controls the rear-wheel drive motor, whereinwhen a vehicle state satisfies a provisional determination condition indicating a connection abnormality of the first temperature sensor, the control device performs verification processing of raising the temperature of the rear-wheel drive motor and verifying whether a detection value of the first temperature sensor demonstrates a predetermined variation, and establishes diagnosis of the connection abnormality on the basis of a result of the verification processing.
1 Assignment
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Accused Products
Abstract
An abnormality diagnostic device for a vehicle is provided with a first temperature sensor that detects the temperature of a rear-wheel drive motor, and a HV control computer that monitors the temperature of the rear-wheel drive motor by using the first temperature sensor and controls the rear-wheel drive motor. When a vehicle state satisfies a provisional determination condition indicating a connection abnormality of the first temperature sensor, the HV control computer performs verification processing of raising the temperature of the rear-wheel drive motor and verifying whether a detection value of the first temperature sensor demonstrates a predetermined variation, and establishes diagnosis of the connection abnormality on the basis of a result of the verification processing.
22 Citations
7 Claims
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1. An abnormality diagnostic device for a vehicle having a rear-wheel drive motor, comprising:
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a first temperature sensor that detects a temperature of the rear-wheel drive motor; and a control device that monitors the temperature of the rear-wheel drive motor by using the first temperature sensor and controls the rear-wheel drive motor, wherein when a vehicle state satisfies a provisional determination condition indicating a connection abnormality of the first temperature sensor, the control device performs verification processing of raising the temperature of the rear-wheel drive motor and verifying whether a detection value of the first temperature sensor demonstrates a predetermined variation, and establishes diagnosis of the connection abnormality on the basis of a result of the verification processing. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An abnormality diagnostic method for a vehicle having a rear-wheel drive motor, the vehicle being provided with a first temperature sensor that detects a temperature of the rear-wheel drive motor;
- and a control device that monitors the temperature of the rear-wheel drive motor by using the first temperature sensor and controls the rear-wheel drive motor,
the abnormality diagnostic method comprising; determining whether a vehicle state satisfies a provisional determination condition indicating a connection abnormality of the first temperature sensor; performing verification processing of raising the temperature of the rear-wheel drive motor and verifying whether a detection value of the first temperature sensor demonstrates a predetermined variation, when the provisional determination condition is satisfied; and establishing diagnosis of the connection abnormality on the basis of a result of the verification processing.
- and a control device that monitors the temperature of the rear-wheel drive motor by using the first temperature sensor and controls the rear-wheel drive motor,
Specification