Failure diagnosis method and system of temperature sensor of switch device
AssigneeHyundai Motor Company
InventorsChang Seok You, Min Su Kang, Sung Do Kim, Dong Hun Lee
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Abstract
A failure diagnosis method of a temperature sensor of a switch device is provided. The method includes setting a sampling period using a temperature detected by the temperature sensor of the switch device and a temperature of cooling water for cooling the switch device. A temperature sensing value detected by the temperature sensor is then compared with a temperature reference value stored in a memory in the sampling period to determine whether failure occurs in the temperature sensor.
Claims13
A failure diagnosis method of a temperature sensor of a switch device, comprising:
- setting, by a controller, a sampling period using a temperature detected by the temperature sensor of the switch device and a temperature of cooling water for cooling the switch device;
- and
- comparing, by the controller, a temperature sensing value detected by the temperature sensor and a temperature reference value stored in a memory of the controller in the sampling period and determining whether a failure occurs in the temperature sensor,
- wherein the controller is configured to determine the failure occurs in the temperature sensor when a difference between the temperature sensing value and the temperature reference value after a reference time elapses in the sampling period is equal to or greater than an error range.
A failure diagnosis system of a temperature sensor of a switch device, comprising:
- the temperature sensor configured to detect a temperature of the switch device;
- a cooling flow channel and cooling water that cool the switch device;
- a memory configured to store a temperature reference value;
- and
- a controller configured to set a sampling period using the temperature detected by the temperature sensor and the temperature of the cooling water, compare the temperature reference value and the temperature sensing value detected by the temperature sensor in the sampling period to determine whether a failure occurs in the temperature sensor,
- wherein the controller is configured to determine the failure occurs in the temperature sensor when a difference between the temperature sensing value and the temperature reference value after a reference time elapses in the sampling period is equal to or greater than an error range.
Dependencies are inferred from the claim text.