Cold start control method and device and electronic equipment
A technology of starting control device and starting relay, which is used in mechanical equipment, engine starting, engine starting with electric motor, etc., can solve the problem of high probability of engine starting failure, improve the probability of successful cold start, and prolong the duration of keeping on. effect of time
Active Publication Date: 2020-08-18
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 invention provides a cold start control method and device and electronic equipment. In the cold start control method, under the condition that a starting relay of an engine meets the preset disconnection condition, the starting relay is not immediately controlled to be disconnected at the moment, but whether the starting relay meets the preset connection keeping condition or not is judged, ifthe starting relay meets the preset connection keeping condition, the starting relay is not controlled to be disconnected but kept connected, continuous judgment is carried out according to a preset judgment time interval, and the starting relay is controlled to be disconnected until it is judged that the starting relay does not meet the preset connection keeping condition. According to the schemedisclosed by the start control method and device and the electronic equipment, under the condition of judging that the starting relay meets the disconnection condition, the judgment about whether thestarting relay can be continuously kept connected or not is added, and under the condition of meeting the continuous connection condition, the starting relay is still kept connected, so that the connection keeping time of the starting relay is prolonged, and the successful probability of 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