Control method of automobile cooling fan

A cooling fan and control method technology, applied in the control of coolant flow, pump control, cooling of the engine, etc., can solve the problems of less significant expected effect, narrow adaptation object, underestimated importance, etc., to improve safety performance and Stable performance, strong developability, fast cooling effect

Active Publication Date: 2020-04-10
YIBIN COWIN AUTO CO LTD
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  • Claims
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Problems solved by technology

[0002] At present, the research on the control of automobile cooling fans is more inclined to the development of hardware optimization, and the importance of control strategy optimization is often underestimated. However, the current hardware technology is relatively mature, and the cost of continuing to optimize hardware is relatively low for automobile research. High, the expected effect is not obvious. In addition, the existing fan control strategy is generally aimed at the heat dissipation fan with a specified gear, and the target is narrow.

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  • Control method of automobile cooling fan
  • Control method of automobile cooling fan

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[0017] With reference to the accompanying drawings, the specific implementation of the present invention will be further described in detail through the description of the embodiments to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0018] figure 1 This is a flow chart of a method for controlling an automobile cooling fan provided by an embodiment of the present invention. The method specifically includes the following steps:

[0019] S1. Receive the requested gear signal regularly;

[0020] S2. When the requested gear is inconsistent with the current gear, a gear shift signal is generated, and the cooling fan is controlled to enable step by step from the current gear to the requested gear, and the requested gear is based on the circulating water circuit. The highest fan gear required by each component, the state of the air conditioner, and the medium voltage switch stat

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Abstract

The invention discloses a control method of an automobile cooling fan. The control method specifically comprises the following steps that S1, a requested gear signal is received on time; and S2, whena requested gear is not consistent with a current gear, a gear-shifting signal is generated, the cooling fan is controlled to be enabled to the requested gear from the current gear step by step, and the requested gear is generated based on the highest fan gear required by each part in a circulating waterway, a state of an air conditioner and a medium-voltage switch state of the air conditioner. The control method of the automobile cooling fan is focused on the optimization of a logic control strategy aspect of the automobile cooling fan, compared with the optimization of a hardware research aspect, the cost is low, and the expansibility is high; the control strategy design of the cooling fan fits the actual demand, an automobile can be efficiently and fast cooled, and the safety and stability performance of the automobile are improved; and control strategy application objects of the cooling fan are wide, and can be suitable for third-gear cooling fans and more-gear cooling fans.

Description

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Claims

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Application Information

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Owner YIBIN COWIN AUTO CO LTD
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