Heat management system of range-extending type electric automobile, and control method

A thermal management system and electric vehicle technology, applied in the thermal management system and control field of extended-range electric vehicles, can solve the problems of power battery consumption, limited PTC heating power, low power battery discharge capacity, etc., and achieve the goal of reducing fuel and electric energy The effect of energy consumption, less heating time, and improved heat utilization

Active Publication Date: 2017-11-17
HOZON NEW ENERGY AUTOMOBILE CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

In the indoor heating mode, relying solely on PTC heating to generate heat consumes a large amount of electric energy of the power battery and affects the pure electric driving range
PTC is used to heat the battery pack. When the temperature is extremely low in winter, the discharge capacity of the power battery...

Method used

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  • Heat management system of range-extending type electric automobile, and control method

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Embodiment Construction

[0014] The following specific examples are only explanations of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications without creative contribution to the present embodiment as required after reading this specification, but as long as they are within the rights of the present invention All claims are protected by patent law.

[0015] Examples such as figure 1 As shown, in order to solve the above problems, the patent of the present invention provides a thermal management system and its control method for an extended-range electric vehicle, which solves the problem that indoor heating and battery pack heating consume a large amount of battery pack power in winter, which leads to a significant reduction in the driving range of electric vehicles. To solve the problem, improve the heat utilization rate of the engine, greatly reduce the heating time of the battery pack, and minimize the consumption of fuel and el...

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Abstract

The invention relates to the technical field of electric automobiles, in particular to a heat management system of a range-extending type electric mobile, and a control method. The heat management system comprises an engine circulation subsystem, a drive motor circulation subsystem and an air conditioner refrigeration circulation subsystem, wherein the engine circulation subsystem comprises a range-extending engine, a circulation water pump I, a heat radiator I, a cooling fan, an electromagnetic valve I, a heat radiator II, an air blower, a PTC heater, an electromagnetic valve II and a battery pack; the drive motor circulation subsystem comprises a circulation water pump II, an inverter, a drive motor, a range-extending engine and a heat radiator III; the air conditioner refrigeration circulation subsystem comprises a compressor, a condenser, an electromagnetic valve III, a battery pack, an evaporator and an air blower. The heat management system is safe and reliable and is good in heat management effects.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a thermal management system and a control method for an extended-range electric vehicle. Background technique [0002] At present, most of the indoor heating and battery pack heating of extended-range electric vehicles use high-voltage PTC heating schemes. Due to excessive power consumption, this scheme will reduce the driving range of electric vehicles by more than 20%. [0003] In the range-extending mode of the extended-range electric vehicle, the heat generated by the engine is dissipated directly through the radiator, which is not fully utilized. In the indoor heating mode, relying solely on PTC heating to generate heat will consume a large amount of electric energy of the power battery and affect the pure electric driving range. PTC is used to heat the battery pack. When the temperature is extremely low in winter, the discharge capacity of the power battery is lo...

Claims

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Application Information

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IPC IPC(8): B60H1/00B60H1/03B60H1/32B60K11/02B60K1/00B60K1/04
Inventor 郭广曾彭庆丰方运舟屠德新孙泽文董丽君刘传代
Owner HOZON NEW ENERGY AUTOMOBILE CO LTD
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