A vehicle control device is provided with: a current detection unit that detects a current flowing through a wire and outputs a current detection value; a current interrupting unit that interrupts a current flowing through the conductive wire; and a calculation unit that calculates a temperature rise value due to Joule heat of the wire using the current detection value, estimates an ambient temperature of an environment in which the wire is routed on the basis of the temperature rise value, outside air temperature information of the vehicle, inside air temperature information of the vehicle interior, and sunshine information, and calculates the temperature of the wire on the basis of the temperature of the wire estimated using the ambient temperature. It is determined whether or not it is necessary to output a current cutoff instruction to a current cutoff unit.
本发明提供一种车辆控制装置,其具备:电流检测部,其检测流过导线的电流,输出电流检测值;电流切断部,其切断流过导线的电流;以及运算部,其利用电流检测值算出由导线的焦耳热引起的温度上升值,根据温度上升值、车辆的外气温度信息、车厢内的内气温度信息以及日照信息,推算布线导线的环境的环境温度,根据利用环境温度推算出的导线的温度,判断是否需要对电流切断部输出电流切断指示。
VEHICLE CONTROL DEVICE AND OVERHEAT PROTECTION DEVICE
车辆控制装置及过热保护装置
2024-08-16
Patent
Electronic Resource
Chinese
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