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Heat dissipation control method and device for vehicle-mounted fuel cell

A technology of fuel cell and control method, which is applied in the direction of fuel cell control, fuel cell heat exchange, fuel cell, etc., and can solve problems such as difficulty in heat dissipation control and incompatibility

Active Publication Date: 2022-01-07
BEIJING SINOHYTEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention aims to provide a heat dissipation control method and device for a vehicle-mounted fuel cell to solve the difficult and incompatible problem of heat dissipation control in the prior art

Method used

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  • Heat dissipation control method and device for vehicle-mounted fuel cell
  • Heat dissipation control method and device for vehicle-mounted fuel cell
  • Heat dissipation control method and device for vehicle-mounted fuel cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] In one embodiment of the invention, a heat dissipation control method of a vehicle fuel cell is disclosed, and wherein figure 1 As shown, including the following steps:

[0066] S1. Get real-time water temperature at the exit of the current time fuel cell reactor coolant;

[0067] S2. The difference between the high temperature and the target temperature, inputs the preset temperature control model, to obtain the initial speed of the heat dissipation fan, the heat dissipation fan at the outlet of the electric stack coolant is activated, and operates in the initial speed;

[0068] S3. Monitor the real-time water temperature change in the exit of the electric stack coolant after the running hot fan operation;

[0069] S4. Depending on the real-time water temperature change determining whether the current working condition satisfies the feedforward update requirements, if not satisfied, the feedforward parameter in the above preset temperature control model is maintained uncha...

Embodiment 2

[0074] Optimization is performed on the basis of Example 1, and the method further includes step S0 of setting the target temperature, the step S0, which is further refined:

[0075] S01. Get the current time of the ambient temperature, speed, wind speed and altitude;

[0076] S02. Determine the ambient temperature, speed, wind speed, and rated life of the fuel cell to the maximum life of the coolant exit at the highest life;

[0077] S03 acquires the mean of the above water temperature range as a target temperature.

[0078] Preferably, in step S2, the difference of the real-time water temperature and the target temperature is input to the preset temperature control model, and the step of obtaining the initial speed of the heat dissipation fan, further comprising:

[0079] S21. Get the difference E (t) of the real-time water temperature and target temperature at the exit of the current time, the current time.

[0080] S22. Enter the difference E (t) to the preset temperature cont...

Embodiment 3

[0109] The present invention also discloses a heat dissipation control device of a vehicle fuel cell corresponding to the method of Examples 1, 2, including data acquisition devices, a fan controller, a cooling fan, such as sequential connection or wireless data transmission. figure 2 Indicated.

[0110] The data acquisition device is used to obtain real-time water temperatures at the exit of the current time fuel cell reactor coolant and send to the fan controller.

[0111] The fan controller is used to obtain the difference between the real-time water temperature and the target temperature of the received, and input the difference to the preset temperature control model to obtain the initial speed of the heat dissipation fan; and control the control of the electric stack coolant The heat dissipation fan at the exit is started and operated in the initial speed; monitoring the real-time water temperature change at the exit of the electric stack coolant after the radiating fan oper...

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Abstract

The invention provides a heat dissipation control method and device for a vehicle-mounted fuel cell, belongs to the technical field of fuel cell temperature control, and aims to solve the problems that heat dissipation control in the prior art is relatively high in difficulty and cannot be compatible. The method comprises the following steps that: the real-time water temperature at a cell stack cooling liquid outlet at the current moment is acquired; the difference value between the real-time water temperature and target temperature is input into a temperature control model, the initial rotating speed of a cooling fan is obtained, and the cooling fan is controlled to be started and operates at the initial rotating speed; the real-time water temperature change at the cell stack cooling liquid outlet after the cooling fan operates is monitored; according to the real-time water temperature change, whether the current working condition meets a feed-forward updating requirement or not is judged, if the current working condition does not meet the feed-forward updating requirement, feed-forward parameters in the temperature control model are kept unchanged, and the cooling fan is controlled to operate at the original rotating speed, and otherwise, the feed-forward parameters are updated according to a preset rule, the new rotating speed of the cooling fan is obtained, and the cooling fan is controlled to operate at the new rotating speed. The method and device can automatically adapt to factors such as environment temperature, vehicle speed, altitude and the like.

Description

Technical field [0001] The present invention relates to a control method and apparatus for cooling a fuel cell temperature control, and in particular, to a fuel cell vehicle. Background technique [0002] The fuel cell during operation, the battery temperature needs to be controlled within a certain range. Further, the required range as small as possible, high precision, and therefore, the temperature of the fuel cell is difficult to control. If more than a certain range, the health status of the fuel cell will be affected, there will be a failure in severe cases, cause it to not function properly. [0003] Radiator are slow startup speed, over-temperature feed solve the problem until they are needed, but the first prior art fed by the combined effects of temperature, speed, wind speed, wind area, elevation and other factors, led to the cooling system for the high-latency systems . When the parameter is not suitable, the temperature of the fuel cell can not be fast and stable, ca...

Claims

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Application Information

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IPC IPC(8): H01M8/04007H01M8/04029H01M8/04298
CPCH01M8/04029H01M8/04067H01M8/04305H01M2250/20Y02E60/50
Inventor 韩竹赵兴旺
Owner BEIJING SINOHYTEC
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