Heat management system and method of pure electric vehicle
A pure electric vehicle and battery management system technology, applied in the field of heat management system of pure electric vehicles, can solve problems affecting performance and life, single adjustment means, battery performance and life impact, etc.
Pending Publication Date: 2022-01-18
YIBIN COWIN AUTO CO LTD
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Problems solved by technology
[0002] The power battery of a pure electric vehicle will generate a lot of heat during fast charging and discharging, and the performance and life of the battery will be affected due to overheating, so it is necessary to cool the battery in time; or in a cold environment, the power battery will be damaged due to excessive temperature Low impact on performance and life, the battery needs to be heated in time, most of the existing power batteries are temperature-regulated by liquid cooling cycle, the adjustment method is single, and the adjustment efficiency is relatively low
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[0035] The specific implementation of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.
[0036] The heat management system of the pure electric vehicle provided by the present invention comprises:
[0037] Vehicle air conditioner and battery management system BMS, the liquid cooling cycle of battery management system BMS exchanges heat with vehicle air conditioner at the heat exchanger of vehicle air conditioner, vehicle air conditioner includes electric compressor EAC and PTC heater, electric compressor EAC, PTC heating In addition to adjusting the temperature of the cockpit, the vehicle air conditioner can also adjust the temperature of the power battery. The liquid cooling cycle system of the power battery is connect...
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The invention discloses a heat management system of a pure electric vehicle. The system comprises a vehicle-mounted air conditioner and a battery management system BMS, and liquid cooling circulation of the battery management system BMS exchanges heat with the vehicle-mounted air conditioner at a heat exchanger of the vehicle-mounted air conditioner; the vehicle-mounted air conditioner comprises an electric compressor EAC and a PTC heater, and the electric compressor EAC and the PTC heater are in communication connection with a vehicle control unit VCU. The vehicle-mounted air conditioner is matched with the liquid cooling system to regulate the temperature of the power battery, so that the temperature regulation capability of the power battery can be greatly improved, and the service life of the power battery can be prolonged; when the non-enabling faults of the heater PTC and the electric compressor EAC are detected, the output power of the heater PTC and the output rotating speed of the electric compressor EAC are limited, and the operation safety of the vehicle-mounted air conditioner is improved.
Description
technical field [0001] The invention belongs to the technical field of automobiles, and more specifically, the invention relates to a heat management system and method for pure electric vehicles. Background technique [0002] The power battery of a pure electric vehicle will generate a lot of heat during fast charging and discharging, and the performance and life of the battery will be affected due to overheating, so it is necessary to cool the battery in time; or in a cold environment, the power battery will be damaged due to excessive temperature To minimize the impact on performance and life, the battery needs to be heated in time. Most of the existing power batteries are temperature-regulated through a liquid cooling cycle. The adjustment method is single and the adjustment efficiency is relatively low. Contents of the invention [0003] The invention provides a heat management system of a pure electric vehicle, which controls the vehicle-mounted air conditioner to par...
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IPC IPC(8): B60H1/00B60H1/22B60H1/32H01M10/613H01M10/615H01M10/625H01M10/633H01M10/663H01M10/6571
CPCB60H1/00392B60H1/00278B60H1/00735B60H1/2218B60H1/3205H01M10/613H01M10/615H01M10/625H01M10/633H01M10/663H01M10/6571B60H2001/00307B60H2001/3272B60H2001/3238Y02E60/10
Inventor 曾彬周斌郭军李果周映双
Owner YIBIN COWIN AUTO CO LTD