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Control method and control device for automobile electronic fan

An electronic fan and control device technology, applied in coolant flow control, pump control, measuring device, etc., can solve problems such as fan noise, and achieve the effect of reducing noise

Active Publication Date: 2017-05-10
BEIJING CHANGAN AUTOMOBILE ENG TECH RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a control method and a control device of an electronic fan for automobiles, which are used to improve the noise problem generated by the fan during use

Method used

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  • Control method and control device for automobile electronic fan
  • Control method and control device for automobile electronic fan
  • Control method and control device for automobile electronic fan

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Embodiment Construction

[0082] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0083] The electronic fan of the present invention can be a poleless fan, figure 1 Shown is a schematic diagram of the control and operation structure of the electronic fan.

[0084] When the vehicle is running, the air conditioner 2, transmission 3, engine 4, radiator 7, oil cooler 8, and condenser 9 are all in normal working condition, and each sensor collects the air conditioner pressure signal, vehicle speed signal, transmission oil temperature signal, and...

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Abstract

The invention provides a control method and device for an automobile electronic fan. The control method includes: receiving an air conditioner pressure signal, a vehicle speed signal, and an engine water temperature signal; operating the air conditioner pressure signal, the vehicle speed signal, and the engine water temperature signal according to a preset algorithm so as to acquire the duty ratio meeting a current condition; and controlling the electronic fan to run according to the current duty ratio. The control method can adopt a PWM (Pulse Width Modulation) manner to control the electronic fan according an actual demand, can adjust the duty ratio and control the electronic fan to run according to the duty ratio, and then can achieve multilevel control of the electronic fan. Compared with two-level speed adjustment manner of resistance speed adjustment or relay speed adjustment, the control method and device can adjust the rotation speed of the electronic fan according to the actual demand, and can reduce noise on the premise of meeting the respective function of the electronic fan.

Description

technical field [0001] The invention relates to the technical field of automobile parts, in particular to a control method and a control device for an electronic fan used in automobiles. Background technique [0002] At present, the cooling system of automobile engine adopts clutch fan and electronic fan, wherein the electronic fan relies on electricity to drive the fan to work. With the continuous improvement of engine technology, the engine power continues to increase, resulting in an increasing heat dissipation of the engine, which in turn leads to an increase in water temperature. In the limited layout space of the engine room, the problem of high water temperature is generally solved by adjusting the air volume of the fan. The methods usually used to adjust the fan are resistance speed regulation and relay speed regulation. When adopting the resistance speed control mode, it is to connect the resistance in series in the power supply circuit, and connect a switch in pa...

Claims

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Application Information

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IPC IPC(8): F01P7/02F01P7/04F01P7/08F04D27/00
CPCF01P7/02F01P7/048F01P7/08F01P2025/08F04D27/004F04D27/007F04D27/008
Inventor 薛强张玲李阳牛国君韩晓晨张景光
Owner BEIJING CHANGAN AUTOMOBILE ENG TECH RES
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