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A control method and control system for an extended-range vehicle power battery

A technology of power battery and control method, applied in the field of control

Active Publication Date: 2020-10-27
ZHEJIANG GEELY NEW ENERGY COMML VEHICLES CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An object of the present invention is to solve the problem in the prior art that the vehicle manufacturing cost is increased by preheating the power battery such as a water circulation system

Method used

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  • A control method and control system for an extended-range vehicle power battery
  • A control method and control system for an extended-range vehicle power battery
  • A control method and control system for an extended-range vehicle power battery

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Embodiment Construction

[0061] figure 1 It is a schematic flowchart of a control method for a power battery of a range-extended vehicle according to an embodiment of the present invention, which is used to control the heat management system of the vehicle or the waste heat of the range-extended engine to heat the power battery. The control method can be include:

[0062] S100. Collect the temperature of the power battery;

[0063] S200. Control the power battery to stop charging and discharging according to the temperature of the power battery being lower than a preset temperature value;

[0064] S300. Control the thermal management system to actively heat the power battery; or

[0065] S400. Control the thermal management system not to actively heat the power battery, and use the waste heat of the range-extended engine to heat the power battery.

[0066] Since the control method of the present invention controls the power battery to stop charging and discharging after the collected power battery ...

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Abstract

The invention provides a control method and system for a power battery of a distance-increasing vehicle. The control method and system are used for controlling waste heat of a heat management system or a distance-increasing engine of the vehicle to heat the power battery. The control method comprises the steps that the temperature of the power battery is collected; according to judgement whether or not the temperature of the power battery is lower than a preset temperature value, the power battery is controlled to stop charging or discharging; the heat management system is controlled to automatically heat the power battery; or the heat management system is controlled not to automatically heat the power battery, and the waste heat of the distance-increasing engine is used for heating the power battery. According to the control method and system, the problem is solved that in the prior art, the power battery is pre-heated through a water circulation system, and the cost of manufacturingthe vehicle is increased.

Description

technical field [0001] The invention relates to the technical field of control, in particular to a control method and control system for a range-extended vehicle power battery. Background technique [0002] Generally, the optimal working temperature of the power battery of a range-extended vehicle is around 25°C. When the working temperature of the power battery is too low, the power battery cannot release enough energy to enable the vehicle to run normally. Preheating the power battery by the water circulation system can greatly extend the service life of the expensive power battery. [0003] However, the existing water circulation system usually includes a heat conduction device for the controller, a heat conduction device for the battery pack, multiple pipelines, etc. That is to say, the solution of preheating the power battery through the water circulation system needs to add the above-mentioned various components to the vehicle. Preheating the power battery. The manuf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L50/62B60L58/27B60L50/15
CPCB60L50/61B60L58/27Y02T10/62Y02T10/70Y02T10/7072
Inventor 徐秀华
Owner ZHEJIANG GEELY NEW ENERGY COMML VEHICLES CO LTD
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