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Heat management system, control method and electric vehicle

A thermal management system and pipeline technology, applied in the field of control methods and electric vehicles, thermal management systems, can solve the problems of low energy utilization

Pending Publication Date: 2020-12-08
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is mainly to overcome the defect of low energy utilization rate in electric vehicles in the prior art, thereby providing a thermal management system, a control method and an electric vehicle

Method used

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  • Heat management system, control method and electric vehicle
  • Heat management system, control method and electric vehicle
  • Heat management system, control method and electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] Such as Figure 1-7 As shown in the figure, the dotted line in the figure indicates that the branch is blocked, the double-dot dash line indicates the air-conditioning refrigerant circuit, and the arrow indicates the flow direction of the refrigerant or brine.

[0057] The present invention provides a thermal management system, which includes:

[0058] A heat pump circulation pipeline 100, a battery circulation pipeline 200 and a motor circulation pipeline 300, the heat pump circulation pipeline 100 is provided with a compressor 4, a first heat exchanger 3, a second heat exchanger 6 and a battery heat exchanger 7. The interior of the vehicle or room can be heated or cooled through the second heat exchanger 6, and part of the battery heat exchanger 7 is also arranged on the battery circulation pipeline 200, so that the heat pump circulates The pipeline 100 and the battery circulation pipeline 200 can exchange heat at the battery heat exchanger 7, and part of the first h...

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Abstract

The invention provides a heat management system, a control method and an electric vehicle. The heat management system comprises a heat pump circulation pipeline, a battery circulation pipeline and a motor circulation pipeline; a compressor, a first heat exchanger, a second heat exchanger and a battery heat exchanger are arranged on the heat pump circulation pipeline, and the interior of the vehicle or the interior of the room can be heated or refrigerated through the second heat exchanger; part of the battery heat exchanger is further arranged on the battery circulation pipeline so that the heat pump circulation pipeline and the battery circulation pipeline can conduct heat exchange at the battery heat exchanger; and part of the first heat exchanger is further arranged on the motor circulation pipeline so that the heat pump circulation pipeline and the motor circulation pipeline can conduct heat exchange at the battery heat exchanger. According to the heat management system, the control method and the electric vehicle, the heat pump circulation pipeline, the battery circulation pipeline and the motor circulation pipeline are effectively combined, so that the working temperatures ofthe battery system and the motor system are kept within a reasonable range, the heat management of the whole vehicle is realized, and the energy utilization rate of the electric vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a heat management system, a control method and an electric vehicle. Background technique [0002] Pure electric vehicles have zero fuel consumption, low cost of use, and good market prospects, and are favored by many companies. At present, the problem of pure electric vehicles is that the cruising range is short. The root cause is that the operating temperature of the battery affects the charging and discharging capacity and life of the battery. Especially under low temperature conditions, the performance is seriously attenuated, and it cannot output enough power to drive the motor to work normally. At the same time, the temperature of the driving motor should not be too high. If the internal temperature of the motor is too high, the efficiency of the motor will decrease. In severe cases, the coil inside the motor will be ablated and even the coil will be short-circuite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00B60H1/06B60K1/00B60K11/04B60L58/26H01M10/613H01M10/615H01M10/625H01M10/663H01M10/63
CPCB60H1/00342B60H1/00392B60H1/00485B60H1/00571B60H1/06B60K1/00B60K11/04B60K2001/005B60K2001/006B60L58/26H01M10/613H01M10/615H01M10/625H01M10/63H01M10/663Y02E60/10Y02T10/70
Inventor 于艳翠赵桓沈军
Owner GREE ELECTRIC APPLIANCES INC
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