Engine speed closed-loop control method and device, storage medium and electronic equipment

Abstract

The invention discloses an engine speed closed-loop control method and device, a storage medium and electronic equipment. The method comprises the steps of inputting a calibrated engine speed of a current vehicle into a PID controller, and generating feedback control parameters; generating feed-forward control parameters according to a pre-established feed-forward controller physical model; summing the feedback control parameters and the feed-forward control parameters to generate a target control parameter; and controlling an engine of the current vehicle to rotate based on the target control parameter. Therefore, by adopting the method, the pre-established feed-forward controller physical model is added on the basis of control over the engine through the original PID to carry out combined control, so that an external load item with the most severe change is extracted through the physical model and converted into the oil supply quantity to be used as the feed-forward control parameter of the speed control, and then on the premise that the cost is not increased, the transient control effect of the engine speed closed loop is effectively improved.

Description

technical field [0001] The invention relates to the field of automotive electronic control, in particular to a method, device, storage medium and electronic equipment for closed-loop control of engine speed. Background technique [0002] The collection of components that direct air or mixture into the cylinders of an engine is called the engine air intake system. When the engine is working, the driver manipulates the opening of the throttle through the pedal to change the intake air volume of the engine intake system. The engine intake system controls the speed of the engine according to the amount of intake air. [0003] In current engine speed control, for example figure 1 As shown, the rotational speed of the engine is controlled by the PID controller, and the use of the PID controller and the comprehensive capability of the computerized engine management system can realize the closed-loop control of the engine. Closed loop is a real-time closed triangle relationship b...

AI Technical Summary

Problems solved by technology

Closed loop is a real-time closed triangle relationship between PID controller, electronic unit (ECU) and engine. After the current vehicle is started, the pre-calibrated speed is input into the PID controller through the ECU, and the engine speed control parameters affect the engine. The speed is controlled, and then the difference between the re-acquired speed and the pre-calibrated speed is re-input into the PID controller. The PID controller calculates the control parameters again, and the closed-loop control is formed in turn. When the external complex changes are relatively large, the speed control effect is poor, and it cannot solve the transient control response of the engine when it enters the speed closed-loop control

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