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Instantaneous rotation speed energy-saving control method for electronic control diesel engine of loading machine

An engine speed, diesel engine technology, applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve the problems of transient fuel consumption increase emissions, slow transient engine response, deterioration, etc., to reduce transient fuel consumption and emissions, The effect of improving dynamic performance and shortening speed response time

Inactive Publication Date: 2016-10-12
JILIN UNIV
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Problems solved by technology

If the rate of increase of the engine speed is not controlled at this time, it will cause the delay of the transient response of the engine, and also cause unnecessary increase of transient fuel consumption and deterioration of emission

Method used

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  • Instantaneous rotation speed energy-saving control method for electronic control diesel engine of loading machine

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Embodiment Construction

[0018] The present invention is described in detail below in conjunction with accompanying drawing:

[0019] see figure 1 As shown, a transient speed energy-saving control method for an electronically controlled diesel engine speed of a loader comprises the following steps:

[0020] 1) When the loader is in the steady-state driving process, the engine speed demand value n is determined by the engine speed control strategy sta (i) (unit: rpm, where i is the count of the control step), at this time the engine is driven by n sta (i) Control operation.

[0021] In this step:

[0022] no sta The specific value of (i) is determined by the travel of the accelerator pedal controlled by the driver.

[0023] The implementation method of speed control is: use PID control method to adjust the output torque of the engine, with n sta (i) The engine is controlled for the control target. Torque self-adaptation can be realized through control, the engine output torque can be reduced, an...

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Abstract

The invention discloses a transient speed energy-saving control method for an electronically controlled diesel engine of a loader. When the engine is in a steady-state operation process, the engine speed control strategy formulates a steady-state operation speed demand value to control the engine operation; at the same time, combined with driving According to the driving demand of the driver, and according to the rising rate of the current steady-state operating speed demand value, it is judged whether to enter the engine speed transient energy-saving control process; when the engine enters the speed transient energy-saving control process, the transient According to different driving demands, the engine speed is controlled to rise at a certain rate until the current speed demand value in the transient energy saving process is greater than or equal to the steady state running speed demand value, and the engine speed transient energy saving control strategy is exited; After the engine quits the speed transient energy-saving control strategy, the engine continues to run under the control of the steady-state running speed demand value.

Description

technical field [0001] The invention relates to an energy-saving control technology of a loader engine, in particular to an energy-saving control method of a transient rotational speed of an electronically controlled diesel engine of a loader. Background technique [0002] At present, the control method of the electronically controlled diesel engine of the loader is relatively simple, mainly in the following two forms: [0003] 1. By establishing the corresponding relationship between the stroke of the accelerator pedal and the fuel injection volume in the control system, the electric control actuator is used to control the position of the gear rod of the fuel volume of the mechanical fuel injection pump, and the fuel injection volume is adjusted to realize the control of the engine; [0004] 2. The stroke of the accelerator pedal directly corresponds to a certain speed command value, and the control system realizes the control of the engine by sending the speed command valu...

Claims

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Application Information

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IPC IPC(8): F02D29/02
CPCF02D29/02F02D2200/1012F02D2200/60
Inventor 王继新袁昊昱柳少康韩云武杨永海
Owner JILIN UNIV
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