Provided is a temperature control system for a vehicle capable of suppressing an increase in friction loss of a rotating electric machine and a gearbox. A temperature control system for a vehicle is provided with: a first temperature control circuit for controlling the temperature of an electric motor and a transmission; a second temperature adjustment circuit that adjusts the temperature of the power conversion device; a heat exchanger that exchanges heat between the first temperature adjustment medium and the second temperature adjustment medium; and a control device. The second temperature adjustment circuit includes a valve device that adjusts the flow rate of the second temperature adjustment medium to the heat exchanger, the power conversion device includes a PDU that supplies power to the motor, and the control device controls the carrier frequency of the PDU and the valve device on the basis of the temperature of the first temperature adjustment medium, and controls the power conversion device when the temperature of the first temperature adjustment medium is lower than a predetermined value. The carrier frequency is reduced and the valve device is controlled so as to reduce the flow rate of the second temperature adjustment medium to the heat exchanger compared to a case where the temperature of the first temperature adjustment medium is equal to or greater than a predetermined value.
提供能抑制旋转电机及齿轮箱的摩擦损失的增加的车辆用温度调节系统。车辆用温度调节系统具备:第一温度调节回路,其进行电动机、变速装置的温度调节;第二温度调节回路,其进行电力转换装置的温度调节;热交换器,其进行第一温度调节介质与第二温度调节介质之间的热交换;及控制装置。第二温度调节回路具备调节第二温度调节介质向热交换器的流量的阀装置,电力转换装置具备向电动机供给电力的PDU,控制装置基于第一温度调节介质的温度,控制PDU的载波频率及阀装置,在第一温度调节介质的温度低于规定值的情况下,与第一温度调节介质的温度为规定值以上的情况相比,降低载波频率,并且控制阀装置以减小第二温度调节介质向热交换器的流量。
VEHICLE TEMPERATURE ADJUSTMENT SYSTEM
车辆用温度调节系统
2023-03-24
Patent
Elektronische Ressource
Chinesisch
IPC: | F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Vehicle remote temperature adjustment auxiliary adjustment system
Europäisches Patentamt | 2021
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