Vehicle cooling fan control method and device
A heat dissipation fan and control method technology, applied in the control of coolant flow, engine cooling, machine/engine, etc., can solve the problem of inaccurate and effective engine heat dissipation management, achieve accurate heat management, ensure heat dissipation effect, meet Effect of Cooling Requirements
Active Publication Date: 2021-12-21
GUANGZHOU AUTOMOBILE GROUP CO LTD
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Problems solved by technology
[0005] The present invention provides a method and device for controlling the heat dissipation fan of a vehicle to solve the problem in the prior art that the heat dissipation management of the engine by the heat dissipation fan is not accurate enough and effective
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[0062] 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 some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0063] The vehicle cooling fan control method provided by the embodiment of the present invention can be applied in the cooling system of the vehicle. The cooling system at least includes the engine, the cooling fan and the vehicle cooling fan control device, wherein the engine, the cooling fan and the vehicle cooling fan control The devices communicate via the bus. The vehicle cooling fan control device obtains the real-time water temperature of the e...
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The invention discloses a vehicle cooling fan control method and device. The vehicle cooling fan control method comprises the steps that the real-time water temperature of an engine is obtained, if the real-time water temperature is larger than a cold start threshold value, the real-time rotating speed and the real-time load of the engine are obtained, and then the working gear of a cooling fan is determined according to the real-time rotating speed and the real-time load; and the starting time length of the cooling fan is determined according to the real-time water temperature, the real-time rotating speed and the real-time load, then the closing time length of the cooling fan is determined according to the starting time length and the real-time load, and finally the cooling fan is controlled to work at the working gear according to the starting time length and the closing time length. By means of the vehicle cooling fan control method, the starting time and the closing time of the cooling fan are reasonably distributed so that stepless control over the cooling fan can be achieved, the cooling power of the cooling fan can be well matched with the working condition of the engine, the cooling effect of the engine is ensured, accurate heat management of the engine is achieved, and the actual cooling requirement of the engine is effectively met.
Description
technical field [0001] The invention relates to the technical field of vehicle heat dissipation systems, in particular to a method and device for controlling a heat dissipation fan for a vehicle. Background technique [0002] As an important part of the vehicle cooling system, the performance of the cooling fan directly affects the running effect of the vehicle engine. How to use the cooling fan to accurately manage the heat dissipation of the car engine has become a problem that technicians must solve. [0003] At present, the fans used in the whole vehicle on the market mainly include high and low gear fans and stepless fans. The control method of the high and low gear fans is very simple. Generally, a threshold is set for the high gear and the low gear. If the engine water temperature exceeds the threshold, the fan of the corresponding gear will be turned on. Therefore, the heat dissipation effect of the high and low gear fans on the engine can only be controlled at two ...
Claims
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IPC IPC(8): F01P7/08F01P7/04
CPCF01P7/08F01P7/04F01P7/026
Inventor 林承伯赵璐璐高媛媛董春艳吴广权李子清
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD