![]() These systems require control over engine power without driver intervention, which is not possible with conventional mechanical throttle system. Modern vehicles facilitate various features such as Cruise Control, Traction Control, Electronic Stability Program and Pre-crash systems. Electronic Throttle Control provides benefits such as improved air-fuel ratio for improving the vehicle performance and lower exhausts emissions to meet the stringent emission norms. With the advent of torque based Engine Management Systems, the precise control and robust performance of the throttle body becomes a key factor in the overall performance of the vehicle. The simulation results agree well with experimental. The result shows that the proposed controller is able to effectively control the vehicle speed by reducing the speed drop during uphill travel and its performance is much better than fixed gain PID controller. MATLAB-SIMULINK is chosen as a simulation tool to simulate the vehicle dynamics behaviour and evaluate the performance of the control structure. The simulation result is then validated using experimental throttle-in-the-loop method. The vehicle is subjected to several positive (uphill) road gradient disturbances with gain scheduling Proportional-Integral-Derivative (PID) controller is proposed to control the vehicle speed. A non-linear vehicle longitudinal model is developed as plant for modelling the vehicle behaviour in longitudinal direction with Electronic Throttle Body (ETB) is introduced as the inner-loop subsystem. ![]() This paper presents a control strategy for controlling speed of a vehicle experiencing the disturbance from road gradient. The simulation result shows that the proposed compensators has significant advantage in reducing the throttle angle error and gives the desired output. The responses of electronic throttle body for opening the throttle angle and error are analyzed for the given input signals. A simulation study has been carried out using software in loop and hardware in loop simulation approaches for step, sinusoidal, and ramp input signals. A PID controller with compensators are developed to handle the nonlinearities due to the friction and limp home dual springs in the proposed electronic throttle control system. A mathematical model for an electronic throttle body is developed to understand the effects of nonlinearities due to friction and limp home dual springs. ![]() This work presents a throttle control system for the precise estimation of throttle angle based on the integrated pedal follower and torque based approach for the given accelerator position and torque demand by the driver. In such systems, pedal follower or torque based approach are used for calculating the required throttle angle for the given torque demand by driver. Nowadays, electronic throttle control system is widely adapted in the motorcycle for better drivability, fuel economy and reduces the emissions.
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