The invention provides a diagnostic device for an electric vehicle, which can properly diagnose a temperature sensor for detecting the temperature of a travel motor or an inverter. A diagnostic device for an electric vehicle is mounted on an electric vehicle having temperature sensors (21, 23) that detect the temperature of a travel motor or the temperature of an inverter that drives the travel motor. The diagnostic device is provided with a controller that diagnoses the temperature sensors (21, 23), and the controller performs a mask process in which the diagnosis is not performed when the system of the electric vehicle is started, and switches the time length of the mask process in accordance with conditions (S3-S5).
本发明提供一种电动车辆的诊断装置,其能够对检测行驶马达或逆变器的温度的温度传感器实现适当的诊断。电动车辆的诊断装置搭载在具有温度传感器(21、23)的电动车辆,该温度传感器(21、23)检测行驶马达的温度或驱动行驶马达的逆变器的温度。诊断装置具备进行温度传感器(21、23)的诊断的控制器,控制器在电动车辆的系统启动时进行不执行诊断的屏蔽处理,并且,控制器根据条件来切换屏蔽处理的时间长度(S3~S5)。
DIAGNOSTIC DEVICE FOR ELECTRIC VEHICLE
电动车辆的诊断装置
2023-12-05
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |