Control method and system of battery loop water pump and vehicle

A control method and control system technology, which is applied in the field of water pump control, can solve problems such as battery loop water pump leakage, stability impact, and battery module safety, and achieve the effect of ensuring safety and reasonable adjustment

Active Publication Date: 2021-05-11
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the stability of the battery circuit water pump has a great influence on the temperature control of the vehicle's battery module. Once the duty ratio of the battery circuit water pump is adjusted unreasonably, such as frequent and rapid adjustments, the battery circuit water pump is prone to leakage. And then seriously affect the safety of the battery module

Method used

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  • Control method and system of battery loop water pump and vehicle
  • Control method and system of battery loop water pump and vehicle
  • Control method and system of battery loop water pump and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] figure 2 It is a flow chart of a control method of a battery loop water pump in embodiment 1, such as figure 2 As shown, the control method of the battery loop water pump includes:

[0034] S101. Obtain the temperature difference between the target temperature of the battery module and the current temperature, and the duty cycle difference between the target duty cycle of the battery loop water pump and the current duty cycle.

[0035] Wherein, the target temperature of the battery module is the temperature that the battery module needs to reach, and the acquisition method may include: directly acquiring a preset temperature threshold as the target temperature, and a preset duty cycle as the target duty Compare. The current temperature can be obtained directly through a temperature sensor provided on the battery module, and the current duty ratio can be obtained through calculation based on the ratio of the high level on the battery loop water pump to one cycle. Wh...

Embodiment 2

[0060] Figure 5 It is a module block diagram of the control system of the battery circuit water pump of the second embodiment.

[0061] Such as Figure 5 As shown, the control system of the battery circuit water pump includes: a difference acquisition unit 1, which is used to obtain the temperature difference between the target temperature and the current temperature of the battery module, and the target duty ratio and the current duty ratio of the battery circuit water pump. The duty cycle difference of the duty cycle; the strategy determination unit 2, configured to determine the number of adjustments for duty cycle adjustment and the adjustment information corresponding to each adjustment according to the temperature difference and the duty cycle difference; and The adjustment unit 3 is configured to adjust the current duty cycle of the battery circuit water pump according to the determined adjustment times and adjustment information.

[0062] Preferably, the strategy de...

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PUM

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Abstract

The invention relates to the technical field of water pump control, and provides a control method and system of a battery loop water pump and a vehicle. The control method of the battery loop water pump comprises the steps of acquiring the temperature difference value between the target temperature and the current temperature of a battery module and the duty ratio difference value between the target duty ratio and the current duty ratio of the battery loop water pump; according to the temperature difference value and the duty ratio difference value, determining the adjusting frequency of duty ratio adjustment and adjusting information corresponding to each time of adjustment; and according to the determined adjusting frequency and the adjusting information, adjusting the current duty ratio of the battery loop water pump. According to the control method and system of the battery loop water pump and the vehicle, reasonable adjustment of the duty ratio of the battery loop water pump can be achieved, and the safety of the battery module is improved.

Description

technical field [0001] The present invention relates to the technical field of water pump control, in particular to a control method and system for a battery loop water pump, and a vehicle including the control system for the battery loop water pump. Background technique [0002] The battery circuit water pump is an important part of the vehicle thermal management module. The existing vehicle thermal management module will change the opening of the battery circuit water pump by adjusting the duty cycle of the battery circuit water pump, so as to realize the temperature control of the battery module of the vehicle. control. Therefore, the stability of the battery circuit water pump has a great influence on the temperature control of the vehicle's battery module. Once the duty ratio of the battery circuit water pump is adjusted unreasonably, such as frequent and rapid adjustments, the battery circuit water pump is prone to leakage. This will seriously affect the safety of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D15/00G06F30/20G06F119/08
CPCF04D15/00
Inventor 刘震辉冉姗姗李雷李雪猛张超志郝春成张恺
Owner GREAT WALL MOTOR CO LTD
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