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Active vehicle thermal management system for new energy vehicle

A new energy vehicle and management system technology, applied in the field of comprehensive thermal management system of new energy vehicles, to achieve the effect of reducing energy waste, eliminating potential safety hazards, and improving vehicle quality

Pending Publication Date: 2018-08-24
JIANGXI KAMA BONLUCK BUSINESS BUS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to ensure passenger comfort, new energy vehicles are equipped with an air-conditioning system, and the main components of the motor, controller, and battery are all heat-generating components, so there is a thermal management problem for the motor and battery.

Method used

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  • Active vehicle thermal management system for new energy vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] see figure 1 , the present invention is an active vehicle thermal management system for new energy vehicles. The motor management system and the battery management system are integrated into the air conditioning system, and the vehicle thermal management function is realized through the water circulation system. The water circulation system includes a motor cooling system and a battery Waterway system, the motor cooling system consists of water tank 1, water pump I (marker 2 in the figure), motor controller 3, four-in-one controller 4 and motor 5 to form an independent cooling cycle; the battery waterway system consists of water tank 1, Water pump II (number 6 in the figure), heating and cooling air conditioner 7, water solenoid valve 8 and battery 9 are composed. The circulating water of heating and cooling air conditioner enters the battery 9 through the water solenoid valve 8, and a check valve 10 is installed at the water outlet of the battery, and the circulating wa...

Embodiment 2

[0020] see figure 1 , the new energy vehicle active vehicle thermal management system of this embodiment differs from Embodiment 1 in that it includes three working modes: self-circulation, cooling mode and heating mode, and the battery management system (BMS) sends a mode request , the thermal management system acts according to the command: the battery management system (BMS) sends the water temperature target, and the thermal management system works according to the target water temperature:

[0021] (1) During self-circulation, the water pump II works at a fixed speed, and the water solenoid valve is normally open;

[0022] (2) Cooling mode, when the water entering the battery system is lower than the set temperature value, the water solenoid valve is closed to cut off the circulation;

[0023] (3) In heating mode, when the water entering the battery system is higher than the set temperature, the water solenoid valve is closed to cut off the circulation.

Embodiment 3

[0025] see figure 1 , the new energy vehicle active vehicle thermal management system of this embodiment differs from Embodiment 2 in that:

[0026] When the working temperature of the battery is higher than the maximum temperature setting value, the water solenoid valve is normally open, the A port of the three-position two-way solenoid valve is connected, the water pump II starts to work, the air conditioner starts to cool, cools the internal water circuit, and flows to the internal water system of the battery. Cool down the battery core, and finally circulate to the water tank; when cooling, the water tank→motor controller→four-in-one→motor→water tank is an independent cooling cycle;

[0027] When the working temperature of the battery is lower than the minimum temperature setting value, the water solenoid valve is normally open, the B port of the three-position two-way solenoid valve is connected, and the water pump II starts to work, and the water flows from the water tan...

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Abstract

The invention relates to an active vehicle thermal management system for a new energy vehicle. A motor management system and a battery management system are integrated in an air conditioning system; avehicle thermal management function is realized by using a water circulation system; the water circulation system comprises a motor cooling system and a battery waterway system; the motor cooling system forms an independent cooling circulation loop by using a water tank, a water pump I, a motor controller, a four-in-one controller and a motor; the battery waterway system consists of the water tank, a water pump II, an air conditioner, a waterway electromagnetic valve and a battery; circulating water of the air conditioner enters the battery via the waterway electromagnetic valve; a one-way valve is mounted in a water outlet of the battery; the circulating water enters the water tank via the one-way valve; a three-position two-way electromagnetic valve connected to the battery management system in a controlled manner is mounted between the water pump I and the water pump II; during refrigerating, the water pump I, the water pump II and an A port of the three-position two-way electromagnetic valve are connected to form a series waterway; and during heating, the water pump I, the water pump II and a B port of the three-position two-way electromagnetic valve are connected to form a series waterway.

Description

technical field [0001] The invention relates to a comprehensive heat management system for a new energy vehicle. The air conditioner and the heat management system are integrated, which saves space resources and realizes energy recovery and utilization. Background technique [0002] New energy vehicles are new things that have only appeared in recent years. They have been vigorously promoted because of their environmental protection and energy saving, and they also have great development prospects. However, in order to ensure passenger comfort, new energy vehicles are equipped with an air-conditioning system, and the main components of the motor, controller, and battery are all heat-generating components, so there is a problem of thermal management of the motor and battery itself. These two are two different systems, but for the purpose of saving space and cost, and the ultimate goal of developing new energy vehicles is energy saving and environmental protection. Therefore, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00H01M10/635H01M10/6567H01M10/663
CPCH01M10/635H01M10/6567H01M10/663B60H1/00392B60H1/00507B60H2001/00614Y02E60/10
Inventor 罗丙荷张汕珊龚椿林谢小春
Owner JIANGXI KAMA BONLUCK BUSINESS BUS
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