A Predictive Control Parallel Computing Method for Gas Path Coordination of Turbocharged Gasoline Engine

Abstract

The invention relates to a predictive control parallel calculation method for gas circuit coordination of a turbocharged gasoline engine, comprising the following steps: constructing a prediction model of intake manifold pressure and supercharging pressure of the gas circuit system of a turbocharged gasoline engine; building an objective function of the system ; establish a parallel computing architecture for the prediction model and the objective function, the parallel computing architecture adopts the trigger parallel computing method to synchronously calculate the prediction model and the objective function; adopt the backpropagation method to solve the calculation gradient, and use the gradient descent method to optimize the actuator node The control amount of valve opening and bypass valve opening realizes real-time coordinated control of the turbine engine gas circuit. Compared with the prior art, the present invention uses the gradient descent method to solve the optimal solution, which shortens the solution time of the model predictive control, improves the real-time performance of the gas path coordination control system based on the nonlinear neural network predictive control, and makes the control system It is possible to apply it to the actual gasoline engine gas system control.

Description

technical field [0001] The invention relates to the field of predictive control computing, in particular to a predictive control parallel computing method for gas path coordination of a turbocharged gasoline engine. Background technique [0002] With the continuous development of automobile technology, it brings convenience to our life, but also brings the problems of environmental pollution and energy crisis. Therefore, energy saving and emission reduction is an important direction for the development of China's auto industry. The supercharging technology has the characteristics of making the combustion in the cylinder more sufficient, and is one of the key technologies widely used to reduce the fuel consumption and pollutant emission of the engine. However, the coupling between the intake part and the exhaust part of the turbocharged gasoline engine makes the actions of the throttle valve and the bypass valve interact with each other, and the nonlinear theoretical model i...

AI Technical Summary

Problems solved by technology

However, the huge amount of calculation of the particle swarm optimization algorithm will lead to poor real-time control, and the gas path pressure control of the gasoline engine is a fast response system, which makes it difficult to apply the gas path coordinated control system based on nonlinear neural network predictive control. Gasoline engine gas circuit system control

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