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Battery heating control method and control system in vehicle driving process

A technology for battery heating and vehicle driving, applied in battery/fuel cell control devices, vehicle energy storage, vehicle components, etc., can solve problems such as low battery discharge power, power consumption, and inability to meet driving needs, and improve vehicle power. , the effect of increasing the mileage

Active Publication Date: 2022-01-04
深蓝汽车科技有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The main problems of this battery heating control method are: (1) Because the battery discharge power is better when the SOC is high and the cruising range can basically meet the user's travel needs, only considering the battery temperature will be triggered in advance when the battery is in good condition. (2) In general, because at the same temperature, the lower the battery SOC is, the lower the battery discharge power is. If the battery temperature is used as the control target of battery heating, the battery Even if it is heated to the target temperature, the battery status may still be unable to meet the user's basic driving needs

Method used

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  • Battery heating control method and control system in vehicle driving process
  • Battery heating control method and control system in vehicle driving process
  • Battery heating control method and control system in vehicle driving process

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Embodiment Construction

[0022] Such as Figure 1 to Figure 3 As shown, the battery heating control method during vehicle running in this embodiment is executed by the battery heating controller, and the battery heating control method includes:

[0023] The first step is to obtain the heating mode selected by the user, the ambient temperature of the vehicle environment, the battery temperature and the battery SOC, and then execute the second step.

[0024] The second step is to judge whether the heating mode selected by the user is an economical mode, if yes, execute the third step, otherwise execute the fourth step.

[0025] The third step is to enter the battery heating control process in the economic mode.

[0026] Such as figure 2 As shown, the steps of the battery heating control process in the economic mode are:

[0027] S1. Determine whether the ambient temperature is lower than the preset ambient temperature threshold T, if yes, execute S2, otherwise execute S13.

[0028] S2. Determine wh...

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Abstract

The invention discloses a battery heating control method and control system in a vehicle driving process. The battery heating control method comprises the following steps: acquiring a heating mode selected by a user, an environment temperature of an environment where a vehicle is located, a battery temperature and a battery SOC (State of Charge); judging a heating mode selected by the user, if the heating mode selected by the user is an economic mode, entering an economic mode battery heating control process, if the heating mode selected by the user is a motion mode, entering a motion mode battery heating control process, and if the user does not select the heating mode, not carrying out battery heating control. The invention specifically describes a battery heating control process in an economic mode and a battery heating control process in a motion mode. On the premise that the basic driving requirement of a user is met, heating of the battery is controlled, the power performance of the vehicle is improved, and meanwhile consumption of electric energy is reduced as much as possible.

Description

technical field [0001] The invention belongs to the field of new energy vehicle system control functions, and in particular relates to a battery heating control method and control system during vehicle running. Background technique [0002] As the power source of electric vehicles, the power battery is very important to ensure the efficient working state of the power battery. Among the many influencing factors, the battery temperature has the greatest impact on the charge and discharge performance of the power battery. Usually within a certain temperature range, the power battery The discharge current will decrease as the temperature decreases, and the output power of the power battery will also decrease due to the temperature decrease. Therefore, in order to ensure the high-efficiency working state of the power battery and avoid the low performance of the power battery for a long time, it is usually necessary to add a heating function to the power battery. Reduce energy co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/27B60L58/12
CPCB60L58/27B60L58/12Y02T10/70
Inventor 胡志强熊张林陈卓
Owner 深蓝汽车科技有限公司
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