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Automotive software applications implement a variety of control algorithms, with many of them being safety-critical in nature. A typical design flow starts with modeling these control algorithms using tools like MATLAB/Simulink. However, at this stage, a number of assumptions, like negligible sensor-to-actuator delay and instantaneous computation of the controller software, are often made. In particular,...
This article provides a new control strategy of parallel regenerative brake system based on the requirement of new energy vehicles, and optimizes the control strategy according to ECE regulations, so that vehicles can use the maximized regenerative braking capability on the premise of ECE regulations. We verify the feasibility and braking performance of the optimized control strategy in MATLAB/Simulink-AMESim...
The adsorption reduction mechanism and main chemical reactions were analyzed. After that, a Lean NOx Trap (LNT) model based on Simulink was constructed in this paper. Grounded on our calculation results, precisely control of the transition between rich and lean combustion mode was obtained. And also, the ratio of rich burn duration to lean burn duration had a significant effect on the NOx emissions...
Electric power assisting characteristic has important impacts on handling stability of vehicle with EPS. This paper introduced that the vehicle model built by the ADAMS software and the EPS(Electric Power Steering) control system model built in MATLAB environment were used to put up the Co-simulation, analyzed the impacts of EPS control system on automobile steering performance.
Steer-by-wire is such a technology that replaces the traditional mechanical and hydraulic control systems by electronic control systems. As the next generation automotive network communications protocol, FlexRay meets the future demands of steer-by-wire network. This paper builds the co-simulation model of steer-by-wire and FlexRay bus on the basis of CANoe_MATLAB, which combines the advantages of...
The paper builds the fault diagnosis model and optimizes the input interface of the model by normalizing the initial data of the vibration parameter for the automobile engine, carrying on information fusion and adopting the Adaptive Neural Fuzzy Interference System (ANFIS). The recognition rate of the model reaches 91.25% under the test of field test data. The experiment indicates that the model enjoys...
Tire model for vehicle braking performance simulation analysis has been built in this paper. Through theoritical analysis, the expression of longitudinal force, side-force and self-aligning torque of the tire in joint working conditions was obtained. By means of neural network module in MATLAB, BP neural network model of the tire in joint working conditions was built. Vertical load, slipping ratio,...
The key technology of the advanced variable nozzle turbocharger is the proportional valve control system. In this article, the fundamental dynamic equations of the proportional valve control system for the turbocharger are deduced by analyzing the principle of operation, the mathematical model of the control system is established, and the control system is simulated by using the MATLAB/Simulink. The...
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