Electric vehicle thermal management system and control method thereof

A management system and battery thermal management technology, which is applied to the thermal management system of electric vehicles and its control field, can solve the problems of slow speed, low efficiency, and large battery pack volume, so as to improve the life and efficiency, and meet the requirements of cooling and heating. requirements and improve overall efficiency

Active Publication Date: 2016-12-07
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For example, the above-mentioned battery thermal management system uses an air cooling system to heat or cool the battery, which has problems such as low efficiency, slow speed, large battery pack size, and small operating temperature range of the battery pack.

Method used

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  • Electric vehicle thermal management system and control method thereof
  • Electric vehicle thermal management system and control method thereof
  • Electric vehicle thermal management system and control method thereof

Examples

Experimental program
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Embodiment Construction

[0025] Such as figure 1 , An electric vehicle thermal management system, including a motor cooling system, a battery thermal management system, and an air conditioning system. The motor cooling system is an independent cycle, including motor water pump 1, charger 2, DCDC 3, motor controller 4, motor 5, motor radiator 6, compensation water tank 23; the battery thermal management system includes battery system heat dissipation Device 7, battery pack 10, heat exchanger 19, battery cooling expansion valve 22, water heating heater 9, battery water pump 8, first two-way valve 11, second two-way valve 12; the air conditioning system is a PTC Heat pump air conditioning system, including electric air conditioning compressor 15, indoor condenser 13, PTC 14, outdoor condenser / evaporator 16, liquid storage and drying tank 17, indoor evaporator 18, air conditioning refrigeration throttle tube 21, electromagnetic three-way valve 20.

[0026] The refrigerant pipeline of the heat exchanger 19 i...

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Abstract

The invention provides an electric vehicle thermal management system comprising a motor cooling system, a battery thermal management system and an air conditioning system; the motor cooling system comprises a motor system radiator, a motor, a motor controller, a charger, a DCDC, and a motor water pump; the battery thermal management system comprises a battery system radiator, a cell pack, a heat exchanger, a water heating heater, and a battery water pump; the air conditioning system is a heat pump type air conditioner with an air heating PTC. The electric vehicle thermal management system can cool down the motor system, the battery system and a passenger cabin when the environment temperature is high, can heat up the cell pack and the passenger cabin when the temperature is low, thus satisfying high demands on usage temperature of the motor system and battery system, and improving motor system and battery system life and efficiency.

Description

Technical field [0001] The invention relates to the field of electric vehicles, and relates to an electric vehicle thermal management system and a control method thereof. Background technique [0002] At present, the air conditioning system, battery pack thermal management system, and motor system thermal management system on electric vehicles on the market are generally independent of each other, and few integrate the battery pack thermal management system with the air conditioning system and motor cooling system. Therefore, the efficiency of the vehicle thermal management system is low, and the maximum utilization rate of the vehicle thermal environment resources is not reached. In addition, battery packs generally use simple air-cooled systems, and seldom use water-cooled systems. In this way, it is difficult to ensure the best operating temperature of the battery pack in hot or cold harsh environments, nor can it ensure the consistency of temperature between batteries, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K11/04B60H1/00B60L11/18H01M10/60H01M10/625
CPCB60H1/00278B60H1/00392B60K11/04B60L58/24H01M10/60H01M10/625Y02E60/10Y02T10/70
Inventor 郭源科肖聪苏志敏王明郝天奇
Owner CHINA FIRST AUTOMOBILE
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