Control method for rapid temperature change of automobile environment wind tunnel
A control method, wind tunnel technology, applied in the direction of temperature control using electric means, auxiliary controller with auxiliary heating device, etc., to achieve the effect of accurate and reliable feedforward control
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[0052] Such as figure 1 As shown, a control method for rapid temperature change in a wind tunnel in an automotive environment, including:
[0053] S1, calculate the difference Δe between the current target temperature and the actual temperature; and calculate the current target temperature t 驻室 differentiation with respect to time
[0054] S2, Analysis like Then go to S3, if Then go to S4; if Then go to S5;
[0055] S3, work on the heating side, close the large valve and small valve on the cooling side; according to Calculation of target temperature demand heating load ΔQ in feedforward control 升温需求 , and calculate the total heat load Q of the ambient wind tunnel, and then calculate the total heat load Q of the large valve feed-forward on the heating side 总 =Q+ΔQ 升温需求 ; and according to Q 总 Calculate the feedforward opening of the large valve on the heating side. When calculating the feed-forward opening of the large valve on the heating side, it can be calcu...
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