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Heating control method of power battery pack of electric vehicle

A power battery pack and power battery technology, applied in the direction of battery temperature control, etc., can solve the problems of increasing costs and achieve the effect of improving the success rate of starting and high heating efficiency

Active Publication Date: 2014-02-05
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs to add a set of induction heating components, electromagnetic coils and heating controllers outside the power battery pack, which not only increases the cost, but also generates electromagnetic radiation when the heating device is working.

Method used

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  • Heating control method of power battery pack of electric vehicle
  • Heating control method of power battery pack of electric vehicle
  • Heating control method of power battery pack of electric vehicle

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Experimental program
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Embodiment Construction

[0067] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0068] like figure 2 As shown, the electric vehicle power battery pack heating system of the present invention includes a vehicle instrument 1, a vehicle control unit 2, a power battery system 3, a motor control system 4 and a drive motor 5, and the vehicle instrument 1 and the vehicle control unit 2, the vehicle control unit 2 is connected to the power battery system 3 and the motor control system 4 respectively, and the motor control system 4 is connected to the power battery system 3 and the drive motor 5 respectively.

[0069] Vehicle instrument 1 is used to display the heating status of the power battery: first, the power battery is heating and does not respond to start and accelerator pedal commands; second, the power batte...

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Abstract

The invention belongs to the technical field of power batteries of vehicles, and particularly relates to a heating control method of a power battery pack of an electric vehicle. The heating control method is implemented by a whole vehicle instrument, a whole vehicle control unit, a power battery system, a motor control system and a driving motor, wherein the whole vehicle instrument is connected with the whole vehicle control unit, the whole vehicle control unit is connected with the power battery system and the motor control system respectively, and the motor control system is connected with the power battery system and the driving motor respectively. According to the method, power batteries are heated by virtue of an original electric drive system of the electric vehicle, the energy of the power batteries is mainly used for the self heating of the power batteries, so that the temperature of the power batteries can be rapidly raised without extra cost, and the heating efficiency is high.

Description

Technical field [0001] The invention belongs to the technical field of automotive power batteries, and specifically relates to a heating control method for an electric vehicle power battery pack. Background technique [0002] The severe situation of global energy and environment, especially the huge impact of the international financial crisis on the automobile industry, has pushed countries around the world to accelerate the strategic transformation of transportation energy. New energy vehicles represented by hybrid vehicles, pure electric vehicles and fuel cell vehicles have become the cars of the future. important direction of development. [0003] Because lithium-ion power batteries have the advantages of high operating voltage, large specific energy, long cycle life, and low spontaneous power generation rate, they are widely used in electric vehicles. However, at low temperatures, the output capacity of this type of power battery decreases rapidly with the temperature d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/60
CPCY02E60/10
Inventor 尹国慧王洪涛罗建武程诚孙志华徐刚吕晓武
Owner DONGFENG MOTOR CORP HUBEI
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