- 期刊
Design of Temperature Measurement System for Electric Vehicles Air Conditioning
摘要
In order to improve the real-time and the accuracy of temperature measurement in electric vehicle air conditioning system, a design of temperature measurement system for electric vehicle air conditioning is proposed. In this study, the least square method is used to piecewise fitting for the R-T characteristics of NTC thermistor, and determine the best equation. The system uses the analog switch ADG1606 to collect the temperature sensor signal, and the signal is filtered by hardware. The software calculates the temperature value according to the mathematical model in different temperature ranges. The temperature value is uploaded to the host computer through CAN bus. After the real vehicle environment simulation test, the results show that the temperature measurement sampling period of the system is 1 second, the maximum temperature measurement error is 0.2 °C, and the temperature measurement function is stable.
參考文獻
延伸閱讀
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