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Heat dissipation method and device for power battery in vehicle, storage medium and processor

A technology of power battery and heat dissipation method, which is applied in battery/fuel cell control devices, vehicle energy storage, secondary batteries, etc., and can solve problems such as poor safety

Pending Publication Date: 2020-05-15
成都广通汽车有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of this application is to provide a heat dissipation method, device, storage medium and processor for a power battery in a vehicle, so as to solve the problem in the prior art that the driver needs to control the switch of the fan to cool down the power battery. bad question

Method used

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  • Heat dissipation method and device for power battery in vehicle, storage medium and processor
  • Heat dissipation method and device for power battery in vehicle, storage medium and processor
  • Heat dissipation method and device for power battery in vehicle, storage medium and processor

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Embodiment 1

[0080] Such as image 3As shown, the control circuit corresponding to the heat dissipation method of the power battery in the vehicle of this embodiment includes a power supply 10, a main power switch 20, a temperature sensor 50, a first fan 70, a second fan 80, a fan protection net (not shown), Wind speed sensor (not shown), travel switch 30 (proximity switch), emergency stop switch (not shown), shutter motor 60, instrument module 40 and control wiring harness, instrument module 40 adopts ACC or charging gun A+ Electric start, temperature sensor 50, wind speed sensor, travel switch 30 and emergency stop switch are respectively electrically connected with the signal input end of instrument module 40 through control wiring harness, and emergency stop switch and wind speed sensor are respectively connected with the signal input end of instrument module 40 by communication, The first fan 70, the second fan 80 and the shutter motor 60 are respectively connected to the signal outpu...

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Abstract

The invention provides a heat dissipation method and device for a power battery in a vehicle, a storage medium and a processor. The power battery is located in a battery bin, and the method comprisesthe steps of detecting whether the power battery is in a preset working state or not; under the condition that the power battery is in a preset working state, detecting the temperature in the batterybin; determining a PWM wave with a predetermined duty ratio according to the temperature of the battery bin; adopting the PWM wave to control a fan to work, wherein the fan is located in the battery bin. According to the method, the fan is controlled to work through the PWM wave, so that the problem of worse safety caused by the fact that a driver controls a switch of the fan is avoided. Accordingto the method, the duty ratio of the PWM wave is adjusted according to the temperature in the power battery bin, and then the rotating speed of the fan is controlled according to the duty ratio of the PWM wave, namely the rotating speed of the fan is adjusted according to the temperature of the battery bin, so that the heat dissipation efficiency of the power battery bin is improved, the energy consumption is reduced, the charge-discharge performance of the battery is improved, the driving range of the vehicle is increased, and the accident risk of the vehicle is reduced.

Description

technical field [0001] The present application relates to the technical field of battery heat dissipation, and in particular, relates to a heat dissipation method, device, storage medium and processor for a power battery in a vehicle. Background technique [0002] In the prior art, the heat dissipation method of the power battery is to install a cooling fan at one end of the battery box, and leave a ventilation hole at the other end to accelerate the air flow between the gaps of the battery cells, thereby taking away the high heat generated by the battery cells during operation. [0003] The power batteries of general models are installed in the rear compartment. There are fewer ventilation grilles on the rear compartment door, the space is relatively airtight, the air convection is not good, and it is not easy to dissipate heat. In addition, the summer temperature and humidity in Chengdu are high, and the road surface temperature can reach More than 40 degrees Celsius, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/625H01M10/635H01M10/6563B60L58/26B60L58/10
CPCB60L58/10B60L58/26H01M10/613H01M10/625H01M10/635H01M10/6563Y02E60/10Y02T10/70
Inventor 黄洋黄志宏邓海刘坤高姗陈明菲王逸飞
Owner 成都广通汽车有限公司
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