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Thermal management control system and control method for battery pack of hybrid electric vehicle

A hybrid vehicle and management control technology, applied in battery/fuel cell control devices, electric vehicles, vehicle energy storage, etc., can solve problems such as high energy consumption and imperfect thermal management system performance, and achieve system control stability and improve Dynamic experience, the effect of improving the utilization rate

Pending Publication Date: 2021-11-02
JIANGLING MOTORS
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Problems solved by technology

[0006] The purpose of the present invention is to address the above technical problems, to provide a hybrid electric vehicle battery pack thermal management control system and control method to solve the problem of high energy consumption of the existing hybrid electric vehicle battery pack at medium and low ambient temperatures, and the performance of the thermal management system. imperfect problem

Method used

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  • Thermal management control system and control method for battery pack of hybrid electric vehicle
  • Thermal management control system and control method for battery pack of hybrid electric vehicle
  • Thermal management control system and control method for battery pack of hybrid electric vehicle

Examples

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Embodiment

[0052] Example: see Figure 1-Figure 5 .

[0053] like figure 1 As shown, a battery pack thermal management control system for a hybrid electric vehicle includes an engine cooling control module, an air-conditioning refrigerant control module, and a battery pack thermal management control module. The engine cooling control module includes an engine waterway assembly 9, an engine A water temperature sensor 14, a one-way valve 8, and a heat exchanger 5; the air-conditioning refrigerant control module includes an air-conditioning system assembly 11, an electronic expansion valve 4, and a refrigerant plate changer 3 connected in series; the battery pack thermal management control module includes The internal waterway assembly 10 of the battery pack, the electronic water pump 1, the two-position three-way solenoid valve 2, the refrigerant plate changer 3 and the heat exchanger 5 are sequentially connected in series;

[0054] A low-temperature radiator 6 is also connected between ...

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Abstract

The invention discloses a thermal management control system and method for a battery pack of a hybrid electric vehicle. The control system comprises an engine cooling control module, an air conditioner refrigerant control module and a battery pack thermal management control module. The engine cooling control module comprises an engine waterway assembly, an engine water temperature sensor, a one-way valve and a heat exchanger which are sequentially connected in series; the air conditioner refrigerant control module comprises an air conditioner system assembly, an electronic expansion valve and a refrigerant plate heat exchanger which are sequentially connected in series; and the battery pack thermal management control module comprises a battery pack internal waterway assembly, an electronic water pump, a two-position three-way electromagnetic valve, a refrigerant plate heat exchanger and a heat exchanger which are sequentially connected in series. According to the control system, four thermal management control modes of pre-cooling at medium and low temperature, high-efficiency heat exchange cooling at high temperature, heating at extremely low temperature and energy balance of the battery cell are designed, so that the battery pack can be freely switched between an energy-saving mode and a high-efficiency mode along with changes of an external environment, a whole vehicle load and the temperature of the battery cell, and invalid energy consumption of the battery pack is reduced.

Description

technical field [0001] The invention relates to the technical field of thermal management of a battery pack of a hybrid electric vehicle, in particular to a thermal management control system and a control method for a battery pack of a hybrid electric vehicle. Background technique [0002] Compared with traditional vehicles, hybrid vehicles have added battery packs, motors and hybrid transmissions. Due to the small capacity of the power battery of a hybrid electric vehicle, its charge and discharge rate is significantly higher than that of an energy-type battery such as a pure electric vehicle under the same working conditions. If it is not actively cooled, it will directly lead to a sharp rise in the temperature of the battery pack cells; and When the temperature of the battery cell is too low, it will also have an impact on the output power and power of the battery, so the thermal management control of the power battery in hybrid vehicles is particularly important. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/26B60L58/27
CPCB60L58/26B60L58/27Y02T10/70
Inventor 李明敏丁文敏刘淑英段龙杨黄炯曾志嵘
Owner JIANGLING MOTORS
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