A cold start control method, device and electronic equipment
A starting relay and engine starting technology, which is applied in the direction of mechanical equipment, engine starting, engine motor starting, etc., can solve the problem of high probability of engine starting failure, improve the probability of cold start success, and prolong the time to keep on Effect
Active Publication Date: 2022-04-26
WEICHAI POWER CO LTD
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[0004] In view of this, the present invention provides a cold start control method, device and electronic equipment to solve the problem of high probability of engine start failure when the engine is cold started at an extremely low temperature
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[0042] 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.
[0043] At present, when the engine is cold started at extremely low temperature, the resistance of the engine speed at the stage of 300-400 rpm is relatively large, and the duration of the engine at this stage is too long. When the engine start time exceeds the preset start time, the engine The starter relay opens, the engine will quit cranking and the engine will fail to start. In addition, the engine start requires the T50 start signal. When the engine speed...
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The present invention provides a cold start control method, device and electronic equipment. In the method, when the starting relay of the engine meets the preset disconnection condition, the starting relay is not immediately controlled to be disconnected at this time, but judging whether the starting relay satisfies the preset condition of keeping on, if so, the starting relay is not controlled to be disconnected, but the starting relay is controlled to be kept on, and it is judged continuously according to the preset judgment time interval until it is judged that the starting relay is When the relay does not satisfy the preset condition of keeping on, the start relay is controlled to be turned off. In the solution disclosed in this application, when it is judged that the starter relay meets the disconnection condition, the judgment of whether it can continue to be kept on is added, and the starter relay is still kept on when the condition of continuous connection is satisfied, and then The time that the starter relay remains on is extended, and the probability of successful cold start of the engine is improved.
Description
technical field [0001] The present invention relates to the field of cold start control, and more specifically, relates to a cold start control method, device and electronic equipment. Background technique [0002] The driving environment of the vehicle in different regions may be different. For example, it may be driven at extremely high temperature or at extremely low temperature. When driving at extremely low temperature, such as in a cold area, the engine of the vehicle, such as a light engine, may be activated. The requirements are high, and therefore, the starting process of the engine at extremely low temperatures is highly concerned. [0003] At present, when the engine is cold started at extremely low temperature, the probability of engine start failure is relatively high. After the engine fails to start, the unburned fuel in the engine cylinder increases, the battery power decreases, and it is more difficult to start the engine again. Contents of the invention ...
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IPC IPC(8): F02N11/08
CPCF02N11/0803F02N11/087
Inventor 侯健鹏王长通张金星
Owner WEICHAI POWER CO LTD