Control method, device, computer equipment and storage medium of heat dissipation device

Abstract

The embodiment of the present application discloses a control method, device, computer equipment and storage medium of a heat dissipation device. The method includes: collecting the actual temperature value of the heating element; filtering the actual temperature value according to a first filtering time constant to obtain a first filtering temperature value; judging whether the actual temperature value is less than or equal to the first filtering temperature value and generate a judgment result; according to the judgment result, the actual temperature value or the first filtered temperature value is fed back to the vehicle controller, so that the vehicle controller and controlling the working state of the heat dissipation device used to dissipate heat from the heat generating device. The method can prolong the start-stop period of the heat dissipation device, effectively avoid frequent start and stop of the heat dissipation device, thereby prolonging the service life of the heat dissipation device.

Description

technical field [0001] The present application relates to the technical field of electric vehicles, and in particular to a control method, device, computer equipment and storage medium of a heat dissipation device. Background technique [0002] The cooling system is one of the core technologies of electric vehicles. Compared with traditional fuel vehicles, the cooling performance of electric vehicles has become extremely important due to the addition of heat-generating components such as motors and motor controllers. At present, electric vehicles mostly use water cooling to dissipate heat. A water-cooling system is configured in an electric vehicle, and the water-cooling system generally includes heat dissipation devices such as a cooling fan and a circulating water pump. The vehicle controller (English full name: Vehicle Control Unit, abbreviated: VCU) in the electric vehicle controls the start and stop of the cooling device according to the actual temperature value of the...

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Problems solved by technology

[0003] However, in the control method of the above-mentioned cooling device, there is a risk of frequent start and stop of the cooling device under certain working conditions. , the actual temperature of the motor controller and the motor rises quickly. Once the operating temperature of the circulating water pump or cooling fan is reached, the VCU will control the circulating water pump or cooling fan to turn on for heat dissipation; and when the circulating water pump and cooling fan work, due to the water cooling The cooling effect of the system is better, or when the electric vehicle looses the throttle and slides, the actual temperature of the motor controller and the motor drops rapidly. Once the temperature is lower than the temperature at which the circulating water pump or cooling fan stops working, the VCU will control the circulating water pump or fan down

Such frequent start and stop operations will generate noise such as relay action, and reduce the life of heat dissipation components such as circulating water pumps and water cooling fans.

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