New energy automobile battery water cooling unit system control method
A technology for new energy vehicles and water-cooled units, applied in battery temperature control, battery/fuel cell control devices, electric vehicles, etc. A variety of working conditions and other problems to achieve the effect of avoiding frequent startup, efficient operation protection, and prolonging the service life
Pending Publication Date: 2021-06-04
扬州嘉和新能源科技有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to provide a new energy vehicle battery water-cooled unit system control method to solve the problem that the existing control strategy affects the operating effectiveness of the unit and the service life of electrical components, which cannot realize various working conditions and cannot meet the actual needs of customers. Technical issues with low competitiveness
Method used
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Embodiment Construction
[0068] Such as Figure 1-3 As shown, a new energy vehicle battery water cooling unit system includes: TMS controller, pre-charge, electronic water pump, electronic fan, compressor, DC-DC, PTC liquid heater, three-state pressure switch, liquid level sensor, ambient temperature Sensor, ambient temperature sensor, antifreeze temperature sensor, water inlet temperature sensor, water outlet temperature sensor, self-resetting switch.
[0069] Electronic fan: works in cooling mode, executes the corresponding speed according to the PWM signal provided by the controller to cool the radiator, and feeds back the working status of the fan to the controller.
[0070] Electronic water pump: It works in cooling, self-circulation, and heating modes. According to the PWM signal provided by the controller, it executes the corresponding speed to promote the circulation of antifreeze, and feeds back the working status of the water pump to the controller.
[0071] Compressor: Work in refrigeratio...
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The invention belongs to the technical field of new energy automobiles, and particularly relates to a new energy automobile battery water cooling unit system control method. A water cooling unit system comprises a whole vehicle BMS controller; a TMS controller which is in communication with the whole vehicle BMS controller and executes the working mode of refrigeration, self-circulation or heating; an electronic water pump; an electronic fan; a compressor; a PTC liquid heater; a three-state pressure switch; an ambient temperature sensor; and an outlet water temperature sensor. The control method comprises three working modes of refrigeration, self-circulation or heating. The technical problems that an existing control strategy affects the operation effectiveness of a unit and the service life of an electric device, multiple working conditions cannot be achieved, the actual requirements of customers cannot be met, and the market competitiveness is low are solved.
Description
technical field [0001] The invention belongs to the technical field of new energy vehicles, and in particular relates to a control method for a battery water cooling unit system of a new energy vehicle. Background technique [0002] The water-cooled unit of the battery thermal management system collects data such as water temperature, refrigerant pressure, and ambient temperature through the controller to adjust the speed of the compressor, the speed of the electronic fan, and the speed of the electronic water pump. At present, in the actual operation, there will be abnormal operation in various working conditions (such as low refrigerant pressure in low temperature environment, alarm will occur, compressor will start frequently in spring and autumn, etc.), and the high pressure condition cannot be satisfied in a short period of time. The actual needs of customers, etc., that is, the control strategy is relatively simple and seriously affects the operating effectiveness of t...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01M10/613H01M10/615H01M10/625H01M10/633H01M10/635H01M10/651H01M10/6563H01M10/6567H01M10/6571H01M10/66B60L58/26B60L58/27
CPCH01M10/613H01M10/615H01M10/625H01M10/633H01M10/635H01M10/651H01M10/6563H01M10/6567H01M10/6571H01M10/66B60L58/26B60L58/27H01M2010/4271Y02T10/70Y02E60/10
Inventor 李宝民熊双元张政马树洋尹国平
Owner 扬州嘉和新能源科技有限公司