Constant air volume control method and device for electronic equipment and vehicle
A technology of electronic equipment and control methods, applied in the control field, can solve the problems of high cost and expensive sensors
Inactive Publication Date: 2021-03-05
BEIQI FOTON MOTOR CO LTD
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Problems solved by technology
However, since the sensor is expensive and a certain space needs to be reserved for the installation of the sensor, the cost of this solution is relatively high, and the risk of sensor failure needs to be borne
Method used
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[0032] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.
[0033] The inventors of the present disclosure found that for the same fan, the output air volume and output power are only related to the fan speed and the blockage status of the air duct and filter, which conforms to the similarity principle of fluid mechanics. When the fan is in stable operation, it can be considered that the air volume of the fan is proportional to the speed of the fan, the wind pressure of the fan is proportional to the square of the speed, and the output power of the fan is proportional to the cube of the speed, which can be expressed as:
[0034] Q=k 1 n (1)
[0035] P=k 2 no 3 (2)
[0036] Among them, k 1 、k 2 It is a coeffici...
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The invention relates to a constant air volume control method and device for electronic equipment and a vehicle, belongs to the field of control, and can reduce the cost and avoid the risk caused by sensor failure. The constant air volume control method comprises the steps of acquiring operating parameters of a fan; and adjusting the output air volume to the expected air volume based on the obtained operating parameters of the fan. The operating parameters of the fan comprise the output power and the rotating speed, and the step of adjusting the output air volume to the expected air volume based on the obtained operating parameters of the fan comprises the sub-steps of calculating the current output air volume by utilizing the current output power and the current rotating speed; calculating a rotating speed compensation value based on the expected air volume and the current output air volume; taking the sum of the rotating speed compensation value and the current rotating speed as a reference rotating speed, and adjusting the rotating speed of the fan to the reference rotating speed; and returning to the step of calculating the current output air volume by utilizing the current output power and the current rotating speed until the output air volume is adjusted to the expected air volume.
Description
technical field [0001] The present disclosure relates to the field of control, in particular, to a constant air volume control method, device and vehicle for electronic equipment. Background technique [0002] During use, the ventilation pipes and filter screens of the air purifier will gradually be blocked by the ash layer, and the resistance of the pipe network will gradually increase, resulting in lower and lower air output. In order to solve this problem, an existing solution is to add a sensor (such as a static pressure sensor or a flow meter) for measuring feedback control parameters, and control the action of the actuator according to the actual detected wind pressure or air volume to achieve constant air volume control. . However, since the sensor is expensive and a certain space needs to be reserved for the installation of the sensor, the cost of this solution is relatively high, and the risk of sensor failure needs to be borne. Contents of the invention [0003...
Claims
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Login to View More IPC IPC(8): B60H3/06
CPCB60H3/06
Inventor 方程
Owner BEIQI FOTON MOTOR CO LTD