Method for controlling engine throttle during digging and loading operation of loader
A technology of engine throttle and control method, which is applied in the direction of engine control, machine/engine, electrical control, etc., to achieve the effect of reducing complexity, fuel consumption and energy saving
Active Publication Date: 2017-09-29
GUANGXI LIUGONG MASCH CO LTD
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide an engine throttle control method for loader shoveling operations that can reduce fuel consumption in view of the defects of the existing loader shoveling operation engine throttle control method
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[0012] The specific implementation will be described below in conjunction with the accompanying drawings.
[0013] In the engine throttle control method during the shoveling operation of the loader in this embodiment, the first choice in the controller is to set the shoveling operation handle of the loader to the position when it is not in operation, that is, to set the boom operation handle and the bucket operation handle to the unoperated position. In the middle position of the operation, the analog output corresponding to the operating handle is X0. At this time, the engine is working at idle speed, and the expected throttle opening of the engine is a min %. When the boom operating handle or bucket operating handle is in the position of the fastest lifting or the fastest bucket retraction, the output analog value is X1, and the desired throttle opening of the engine at this time is set to a max %. In the present invention, the output analog quantity when the boom operatin...
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The invention relates to loader engine control, and provides a method for controlling an engine throttle during digging and loading operation of a loader for overcoming the defects of an existing method for controlling the engine throttle during digging and loading operation of the loader. The method comprises the following steps that the analog output of a digging and loading operation handle in the middle position, the analog output of the digging and loading operation handle in the position with the highest digging and loading acting speed and corresponding engine throttle openings are set; the corresponding relations between the output analog quantities of the positions of he digging and loading operation handle from the middle position to the position with the highest digging and loading acting speed are set; and in the digging and loading process, the expected throttle opening of an engine is determined according to the output analog quantity of the digging and loading operation handle, and an engine ECU controls the engine to work at the determined expected throttle opening. The method has the beneficial effects that oil consumption is reduced, the engine flameout is prevented, and the operation and control process is simplified.
Description
technical field [0001] The invention relates to a method for controlling the throttle of an engine, and more specifically, relates to a method for controlling the throttle of an engine during shoveling operation of a loader. Background technique [0002] During the shoveling operation of the loader, the engine throttle control is very frequent, such as accelerating walking, shoveling operations, lifting heavy objects and so on. This scheme only involves the intelligent control method of the engine throttle of the loader during the shovel loading operation. [0003] During the shoveling operation of the loader, the traditional engine throttle control outputs the analog value to the engine ECU through the pedal, and then the ECU controls the output power of the engine. And in the usual shovel loading operation, in order to ensure sufficient shovel loading power requirements, the loader driver will basically make the engine work at the maximum throttle opening, and when the ou...
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IPC IPC(8): F02D11/10F02D41/14
CPCF02D11/10F02D11/105F02D41/1401F02D2011/102
Inventor 陶林裕黄健蔡登胜孙金泉王军
Owner GUANGXI LIUGONG MASCH CO LTD