Method and device for controlling temperature of hybrid electric vehicle battery
A hybrid electric vehicle, battery temperature technology, applied in the field of vehicle thermal management, can solve the problem of insufficient fineness of battery heating and cooling, achieve the effect of improving heating and cooling efficiency, various control methods, and increasing cruising range
Active Publication Date: 2021-07-02
ZHENGZHOU YUTONG BUS CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a hybrid electric vehicle battery temperature control method and device, which is used to solve the problem that the battery heating and cooling methods in the prior art are not fine enough
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[0037]The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0038] Such as figure 1 As shown, the hybrid vehicle thermal management system of this embodiment includes three heat dissipation circuits and three heating circuits, and the three heat dissipation circuits are respectively the cooling liquid-refrigerant heat exchanger cooling circuit, the cooling liquid-air heat exchanger circuit, and the cooling liquid self-circulation circuit. The cooling circuit, the cooling liquid-refrigerant heat exchanger cooling circuit, the cooling liquid-air heat exchanger circuit, and the cooling liquid self-circulating cooling circuit are in parallel relationship. The three heating circuits are the engine heating circuit, the motor heating circuit and the heater circuit respectively, and the engine heating circuit, the motor heating circuit and the heater circuit are connected in parallel. Among them, the cooling liqui...
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The invention provides a battery temperature control method and device for a hybrid electric vehicle. By collecting the battery temperature, if the battery temperature is greater than or equal to the first set value, the air conditioner state, the temperature outside the vehicle and the coolant temperature are collected. Select the natural cooling method or the radiator cooling method for the external and coolant temperature to dissipate heat for the battery; if the battery temperature is lower than the second set value, collect the engine outlet water temperature and the motor outlet water temperature, and select the engine waste heat, The waste heat of the electric motor, the combined waste heat of the engine and electric motor, or the heater heats the battery. The invention heats or cools the battery in a reasonable and timely manner according to the temperature of the battery. Its control methods are various, and the control of the battery temperature is relatively fine, which realizes the energy saving and emission reduction of the vehicle, improves the heating and heat dissipation efficiency of the battery, and ensures that the battery is in normal condition. Under the temperature environment, the service life of the battery is improved, and the cruising range of the hybrid vehicle is increased.
Description
technical field [0001] The invention belongs to the technical field of vehicle thermal management, in particular to a method and device for controlling the temperature of a battery of a hybrid electric vehicle. Background technique [0002] Energy crisis and environmental pollution are two major worldwide problems facing society today. Under the requirements of energy conservation and emission reduction, energy conservation and emission reduction have become the core of the development of the automobile industry. Therefore, new energy vehicles (such as electric vehicles, hybrid vehicles, etc.) It has become a recognized development direction in today's society. However, the current technology of power batteries is not yet fully mature, and the cost is relatively high, which makes the popularization of electric vehicles face many obstacles. As an effective supplement to electric vehicles, hybrid vehicles can reduce vehicle exhaust emissions and fuel consumption while reducin...
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IPC IPC(8): H01M10/613H01M10/615H01M10/625H01M10/6562H01M10/6567H01M10/663
CPCH01M10/613H01M10/615H01M10/625H01M10/6562H01M10/6567H01M10/663Y02E60/10
Inventor 王熙熙张少丕赵俊杰李波王秋杰赵梦沙李嘉
Owner ZHENGZHOU YUTONG BUS CO LTD