A thermal management system and method for an extended-range electric vehicle, and the vehicle

Abstract

The invention discloses a thermal management system and method for a range-enhanced electric vehicle as well as the vehicle and relates to the technical field of vehicles. The thermal management system comprises an engine cooling loop, a motor cooling loop, a power battery circulation loop, a first heat exchanger and a second heat exchanger, wherein the engine cooling circuit is used for cooling an engine; the motor cooling circuit is used for cooling a motor; the power battery circulation loop is used for heating or cooling a power battery; the first heat exchanger is connected with the engine cooling loop and the motor cooling loop; the second heat exchanger is connected with the motor cooling loop and the power battery circulation loop; heat generated by the engine is transferred to thefirst heat exchanger by the engine cooling loop and then is transferred to the second heat exchanger by the motor cooling loop till the heat enters the power battery circulation loop to heat the power battery. The invention further provides the corresponding method and the vehicle; the vehicle comprises the thermal management system. According to the thermal management system and method as well as the vehicle disclosed by the invention, the energy utilization rate can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a thermal management system and method for an extended-range electric vehicle and the vehicle. Background technique [0002] Driven by increasingly stringent automobile fuel consumption and emission regulations, more and more OEMs have started the development of pure electric vehicles. universal. [0003] One of the problems is that when the ambient temperature of the vehicle is low, due to the heating of the power battery and the heating of the passenger compartment under low temperature conditions, the current solution is to use all PTC electric heating. Heating consumes a large amount of energy, which in turn leads to a significant decrease in the pure electric cruising range of the vehicle. This consequence greatly reduces the user experience, which in turn greatly affects the large-scale popularization of pure electric vehicles. Contents of the invention [0004] An obj...

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Problems solved by technology

[0002] Driven by increasingly stringent automobile fuel consumption and emission regulations, more and more OEMs have started the development of pure electric vehicles. universal

[0003] One of the problems is that when the ambient temperature of the vehicle is low, due to the heating of the power battery and the heating of the passenger compartment under low temperature conditions, the current solution is to use all PTC electric heating. Heating consumes a lot of energy, which leads to a significant decrease in the pure electric cruising range of the vehicle. This consequence greatly reduces the user experience, which in turn greatly affects the large-scale popularization of pure electric vehicles.

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