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The position control of an Electronic Throttle Body (ETB) is challenging due to its nonlinear characteristics of input and output relation. In this work, the control of ETB is first accomplished by applying a data-driven optimization method-Extremum Seeking (ES). Experimental results are presented to demonstrate the effectiveness of the ES control approach.
A model of Wiener structure is presented in this work to represent the characteristics of an electronic throttle body. The proposed model consists of a linear submodel, which is used to capture the electric motor dynamics of the throttle body, and a nonlinear submodel, which is used to represent the nonlinearities in friction and spring torques. The relationship between the proposed model and the...
Low Temperature Combustion (LTC) modes in diesel engines are characterized by enhanced homogeneity of the combustion mixture resulting from a longer ignition delay when compared to conventional diesel combustion. This is enabled by charge density and dilution control, coupled with modulation of fuel injection parameters. Charge dilution is achieved by exhaust gas recirculation (EGR), while turbocharging...
This paper discusses the torque estimation of the spring which is internally connected between the motor shaft and the plate in an electronic throttle valve. In advanced engine control (such as EGR rate control), the throttle valve may need to be controlled in both opening and closing directions using a bidirectional driver in order to achieve more accurate and faster transient performance. The spring...
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