The Electronic Throttle Controller Based on the Model Reference Adaptive Nonlinear Triple-step Method

Electronic throttle control system is extremely important for engine intake control. Due to the nonlinear structure of the electronic throttle and the change of friction during the rotation of the throttle baffle, the angle of the electronic throttle controlled by the Electronic Control Unit (ECU) will cause a large control error. In order to control the electronic throttle more accurately and quickly, this article builds an electronic throttle control system based on dSPACE Rapid Control Prototyping (RCP). This paper first establishes a mathematical model based on the mechanism of the electronic throttle. Next the particle swarm optimization algorithm is applied to identify the parameters of the electronic throttle system. Then the controller based on discrete model reference adaptive control (MRAC) nonlinear triple-step method is designed. Finally, dSPACE RCP is applied for experimental verification. Experimental results demonstrate the efiectiveness of the MRAC nonlinear triple-step method controller with prescribed transient response.