Four-wheel drive hub drive pure electric vehicle powertrain temperature integrated control system

Abstract

The invention discloses an integrated temperature control system for the power assembly of a four-wheel-drive hub-driven pure electric vehicle. It consists of coarse filter, fine filter, four-way valve, three-way valve and two-way valve. The system receives the real-time temperature signal fed back by each temperature sensor through the controller, sends instructions to control the start and stop of the oil pump, heater and fan, and controls the opening and closing of each valve port. The circulating passage makes the cooling oil flow in the corresponding passage. The integrated temperature control system for the powertrain of a four-wheel-drive hub-driven pure electric vehicle according to the present invention can not only realize the integrated cooling and heat dissipation of the battery and the hub motor, but also heat the battery when starting at low temperature, so that the battery can be kept at the optimum temperature as much as possible. Working within the range, better play the working performance of the battery and prolong its service life.

Description

technical field [0001] The invention relates to a temperature control system for a pure electric vehicle, in particular to an integrated temperature control system for a powertrain of a four-wheel-drive wheel hub-driven pure electric vehicle. The battery can be heated to make the battery work in the optimum temperature range as much as possible, so as to better play the working performance of the battery and prolong its service life. technical background [0002] Due to the depletion of oil resources and the improvement of public awareness of environmental protection, automobile factories around the world are engaged in the development of new energy vehicles, especially pure electric vehicles. However, the development of pure electric vehicles is currently restricted by key technologies such as batteries and motors, such as battery energy density, driving range, and battery operating temperature; and the current pure electric vehicles are only suitable for driving in relativ...

AI Technical Summary

Problems solved by technology

[0003] As far as the commonly used in-wheel motor-driven pure electric vehicle powertrain temperature integrated control system is concerned, basically it can only cool and dissipate the in-wheel motor to ensure its normal operation; it cannot guarantee the normal operation of the battery pack in low-temperature and harsh environments. Since the battery pack can only work in a specific temperature environment, the use of pure electric vehicles is also limited to this

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