Power distribution method and device in engine starting process
A technology of engine starting and allocation method, which is applied in the direction of engine starting, engine motor starting, engine components, etc., which can solve problems such as starting failure and low battery voltage, and achieve the effect of avoiding starting failure
Active Publication Date: 2021-01-19
WEICHAI POWER CO LTD
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Problems solved by technology
[0004] In view of this, the present invention provides a method and device for distributing electric power in the process of starting the engine, so as to overcome the problem in the prior art that the voltage of the battery is too low during the process of starting the engine, resulting in failure to start
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[0040] 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.
[0041] figure 1 It is a flow chart of a method for distributing power during engine starting disclosed in an embodiment of the present invention, see figure 1 As shown, the power distribution method of the engine starting process may include:
[0042] S1: Detect whether the current speed of the engine exceeds the preset speed value, if yes, go to S5; if not, go to S2.
[0043] Step S1 is for judging whether the engine is in the start-up preparation stage or ...
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The invention discloses an electricity distribution method and device during the engine starting process. The method comprises the steps that firstly, whether at a starting stage or at a starting preparation stage is judged according to the rotating speed of an engine; if at the starting preparation stage, the next action is judged according to the battery voltage; if a battery has a great numberof electricity, electric accessories are started according to the set priority order; if the engine starts to be started, a driver of a key component is started; if the electricity amount of the battery is high in the process, the electric accessories are started according to the priority; if the battery voltage is low, the electric accessories are switched off; and after the engine is started successfully, the electric accessories continue to be started. Through the method and device, the electricity quantity of electric components are distributed and managed at the starting preparation stageand the starting stage of the engine, and the situation that starting fails due to consumption of too much electricity is avoided.
Description
technical field [0001] The present invention relates to engine starting technology, and more specifically, relates to a method and device for distributing electric power in the engine starting process. Background technique [0002] The engine is a device that provides power for various vehicles and large-scale industrial machinery and equipment. It has a wide range of applications and plays an irreplaceable important role in practical applications. [0003] Key components of an engine include the starter, fuel injectors and fuel metering valves. With the continuous development of engine technology and the continuous improvement of functional effects, there are more and more electric accessories for engines. Such as fuel pre-supply pump, fuel electric heater, oil pre-supply pump, intake heating grille, etc. Since the key components of the engine and the electric accessories need to be powered by the battery during the engine starting process, therefore, the simultaneous ope...
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IPC IPC(8): F02N11/08F02N11/10
CPCF02N11/0814F02N11/0862F02N11/087F02N11/108F02N2011/0881
Inventor 吕宪勇宋炳雨常铖鹿雪文
Owner WEICHAI POWER CO LTD