An engine starting protection system and method
A technology for engine start and start protection, which is applied in the direction of engine start, engine motor start, engine components, etc. It can solve the problems of reducing engine reliability and life, engine start difficulty, engine failure to start, etc., to avoid abnormal wear Effect
Active Publication Date: 2019-11-01
WEICHAI POWER CO LTD
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Problems solved by technology
[0002] At present, the existing engine starting method is direct start without start protection. When the weather in the north is cold, many engines will not start due to low temperature.
For example: in winter or in cold areas, generally when the temperature is lower than -20°C, the fluidity of the lubricating oil in the engine will deteriorate and the resistance of each moving part will increase, resulting in difficulty in starting the engine.
[0003] For an engine without start-up protection, if the engine is started directly at low temperature, it will easily cause abnormal wear of the friction pair, thereby reducing the reliability and life of the engine
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[0026] 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.
[0027] Please refer to the attached figure 1 , figure 1 It is a schematic structural diagram of an engine starting system provided by an embodiment of the present invention. Such as figure 1 As shown, the embodiment of the present invention discloses an engine starting protection system, the specific structure includes: electronic control unit ECU1, coolant temperature sensor 2, two-speed starter 3 and power supply 4, wherein:
[0028] The coolant temperatu...
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The invention discloses an engine start protection system and method. The system comprises an electronic control unit (ECU), a cooling liquid temperature sensor, a double-speed starter and a power supply source. The cooling liquid temperature sensor is used for detecting the temperature of cooling liquid for an engine in real time. The electronic control unit (ECU) is used for obtaining the temperature of the cooling liquid in real time and judging whether the temperature of the cooling liquid reaches the preset temperature value or not. The double-speed starter controls the engine to be started through two start modes. The power supply source supplies start power to the double-speed starter. According to the engine start protection system, the engine is controlled to be directly started through the double-speed starter or started after turning is conducted automatically according to judgment on the temperature of the cooling liquid, and therefore, the problem that the engine is worn abnormally due to the fact that the engine is directly started at the low temperature can be avoided; and the engine can be started smoothly at the low temperature.
Description
technical field [0001] The invention relates to the technical field of engines, in particular to an engine startup protection system and method. Background technique [0002] At present, the existing engine start method is direct start without start protection. When the weather in the north is cold, many engines cannot start due to low temperature. For example: in winter or in cold regions, generally when the temperature is lower than -20°C, the fluidity of the lubricating oil in the engine will deteriorate, which will increase the resistance of the moving parts, making it difficult to start the engine. [0003] For an engine without start-up protection, if the engine is started directly at low temperature, it will easily cause abnormal wear of the friction pair, thereby reducing the reliability and life of the engine. Therefore, in order to avoid abnormal wear of the engine and enable the engine to start smoothly under low temperature conditions, it is a technical problem ...
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IPC IPC(8): F02N11/10F02N11/08
CPCF02N11/08F02N11/10
Inventor 朱建荣黄国龙翟长辉孙楠楠
Owner WEICHAI POWER CO LTD