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Fan control method and system and vehicle

A fan control and fan technology, applied in pump control, non-variable-capacity pumps, machines/engines, etc., can solve problems such as failure to start, vehicle feeding, and constant fan rotation, to prevent relays from sticking, low modification costs, Avoiding the effect of vehicle feed

Pending Publication Date: 2022-04-22
杭州吉利汽车有限公司 +2
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, when the inventor conducted experiments on the vehicle, he found that the high-speed gear relay of the fan would stick and the fan would rotate constantly in the start-stop state, which caused problems such as vehicle power feeding and failure to start. Affect safety and may lead to traffic accidents

Method used

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  • Fan control method and system and vehicle
  • Fan control method and system and vehicle
  • Fan control method and system and vehicle

Examples

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Embodiment Construction

[0031] For some vehicles, the type selection of the fan relay will be carried out according to the working conditions of the vehicle. For example, the impact current of the relay is higher than the driving current of the highest speed when the vehicle is in normal operation. Corrosion and adhesion problems.

[0032] When the inventor tested the start-stop function of a vehicle equipped with a multi-speed fan, he found that after the vehicle turned on the start-stop function and the engine was shut down, the multi-speed fan continued to rotate, so there was a vehicle feeding and it could not be started. It may lead to safety problems of vehicle safe disposal.

[0033] In this regard, the inventor has carried out related analysis and research, and found that the rated current (including the maximum allowable current and the maximum disconnection current) of the general vehicle is usually selected higher when the relay of the fan is selected. At the same time, even if the fan is...

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Abstract

The invention provides a fan control method and system and a vehicle, and belongs to the technical field of fan control. The fan control method is used for controlling a multi-speed fan on a vehicle and comprises the steps that when the vehicle is in a shutdown state under the condition that a start-stop function is started, whether the requirement for running preset gears of the multi-speed fan exists or not is judged, the multi-speed fan comprises a plurality of gears with the rotating speeds sequentially increased, and the preset gears are the gears except the lowest-speed gear; and if yes, the multi-speed fan is controlled to operate all the gears in sequence from low to high till the preset gear. According to the fan control method, the fan control system and the vehicle, adhesion of the fan relay can be effectively prevented.

Description

technical field [0001] The invention belongs to the technical field of fan control, and in particular relates to a fan control method, a control system and a vehicle. Background technique [0002] With the substantial increase in the use of automobiles, reducing energy consumption is indispensable, and the start-stop function has made a great contribution to reducing energy consumption of automobiles. The start-stop function is specifically manifested as: when the vehicle stops (not parked), the engine suspends work (that is, the speed is 0), stops the power output, and when the brake pedal is released, the engine starts again. The oil circuit lubrication of the engine is carried out normally when the engine is started and stopped, which can reduce the energy consumption of the whole vehicle and avoid the internal wear of the engine at the same time. When the vehicle is in the start-stop state, vehicle users still have basic needs for the vehicle, such as audio-visual enter...

Claims

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Application Information

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IPC IPC(8): F04D27/00
CPCF04D27/004F04D27/00
Inventor 杨晨颖宋心伟王华宾刘振周波徐珍
Owner 杭州吉利汽车有限公司
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