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Whole-vehicle thermal management system of electric vehicle and control method of whole-vehicle thermal management system
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A technology of electric vehicles and management systems, applied in electric vehicles, battery/fuel cell control devices, electric power devices, etc., can solve the problems of high energy consumption and low work efficiency, achieve waste heat recovery, improve efficiency, and reduce dependence Effect
Pending Publication Date: 2021-05-28
广州高澜创新科技有限公司
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[0004] The technical problem to be solved by the present invention is to provide an electric vehicle thermal management system and its control method for the above defects, so as to solve the problems of low working efficiency and high energy consumption of the electric vehicle thermal management system in the prior art
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Embodiment 1
[0040] A thermal management system for a complete electric vehicle, applied to the temperature regulation of the passenger compartment and battery pack 24 in the electric vehicle, including:
[0041] A heat pump air-conditioning circuit, the heat pump air-conditioning circuit is used to adjust the temperature of the passenger compartment and the battery pack 24 of the electric vehicle;
[0042] A heating circuit, the heating circuit is used to heat the passenger compartment and the battery pack 24 of the electric vehicle, an electric heater 14 is arranged in the heating circuit, and the electric heater 14 is connected with the water-cooled condenser 8 located in the heat pump air-conditioning circuit connected, the heating circuit is provided with circulating cooling liquid;
[0043] The battery pack thermal management circuit is used to adjust the temperature of the battery pack 24 in the electric vehicle, the battery pack thermal management circuit is connected with the heat...
Embodiment 2
[0074] Such as figure 2 As shown, a control method including the electric vehicle thermal management system based on the embodiment is applied to the thermal management of the electric vehicle passenger compartment and the battery pack 24, including the following steps:
[0075] The vehicle is powered on, and the vehicle state is obtained, wherein the vehicle state includes the vehicle startup state and the charging state;
[0076] Acquiring the temperature of the battery pack 24 and the passenger demand, wherein the passenger demand is the passenger compartment target temperature set by the passenger;
[0077] Select a thermal management mode, wherein the thermal management mode includes: passenger compartment heating mode, passenger compartment cooling mode, battery pack heating mode, battery pack cooling mode, passenger compartment dehumidification and reheating mode, motor electronic control system cooling mode;
[0078] In this embodiment, the first electromagnetic shut...
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Abstract
The invention discloses an electric vehiclethermal management system and a control method thereof, and relates to the technical field of electric vehicle thermal management. The system comprises a heat pump air conditioner loop, a battery packheat management loop and a motor electric control cooling loop; in theheat pump air conditioner loopa heating loop is used for heating a passenger compartment and a battery pack of the electric automobile, and an electric heater is communicated with a water cooling condenser; the battery packheat management loop is used for adjusting the temperature of a battery pack in the electric vehicle, and the battery pack heat management loop is communicated with the heating loop; and the motor electric control cooling loop is used for cooling a driving motor of the electric vehicle. The heat pump air conditioner loop, thebattery pack heat management loop and the heat management loop of the passenger compartment are integrated, the purpose of overall management of heat in the passenger compartment and the battery pack is achieved, and the heat management efficiency of the whole vehicle is improved.
Description
technical field [0001] The invention relates to the technical field of electric vehicle thermal management, in particular to a complete electric vehicle thermal management system and a control method thereof. Background technique [0002] The promotion and popularization of electric vehicles has become an inevitable trend of the development of the times. Due to the nature of the battery, motor and electronic control system of electric vehicles, they must always work in a suitable temperature range, so the corresponding thermal management system is a necessary equipment to ensure the safety, economy and comfort of electric vehicles. [0003] At present, the commonly used electric vehicle thermal management system using PTC as the heat source consumes a lot of power, which will cause serious mileage anxiety in winter. Therefore, the present invention proposes a complete electric vehicle thermal management system and its control method . Contents of the invention [0004] T...
Claims
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Application Information
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