Having examined some shortcomings in existing car-following models, this study put forward to a new optimal velocity function (desired velocity) based on the dynamic equilibrium theory. The paper discusses its formati...
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With the crisis of energy becoming more severity, the research of cutting down the drag of commercial vehicles is more and more important. In this work, to reduce the drag of a van body truck, aerodynamic drag reducti...
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An integrated control algorithm based on model predictive control (MPC) for vehicle active front steering (AFS) and yaw moment control integrated control (DYC) is proposed in this paper. Hierarchical integrated contro...
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Based on YD4A75-C3 electronic-controlled common rail diesel engine, the characteristic of in-cylinder combustion was simulated. The research results showed that fuel vapor mainly is formed in the front of the jet spra...
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Applying 3D graphics software UG to create three kinds of typical oil groove structure for wet friction plate model,using T / Grid hybrid mesh for the model grid and finally using Fluent RNG k-ε turbulence model and ...
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Applying 3D graphics software UG to create three kinds of typical oil groove structure for wet friction plate model,using T / Grid hybrid mesh for the model grid and finally using Fluent RNG k-ε turbulence model and the moving reference frame for simulation, one can get to know the different flow field of cooling oil in three kinds of typical oil grooves. Comparatively analyze the inner flow fields of three kinds of oil grooves, so as to understand cooling characteristics of the different oil grooves and provide certain reference for the design of oil groove.
Numerical calculation method is applied in thermal analysis area with the development of the computer technology. Solid Fluid whole conjugated heat transfer method can take the mutual influence both the fluid flow and...
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Numerical calculation method is applied in thermal analysis area with the development of the computer technology. Solid Fluid whole conjugated heat transfer method can take the mutual influence both the fluid flow and the heat transfer into account. Much more accurate and reasonable temperature fields results can be obtained, which provides the required conditions for the heat stress calculation. The engine model is simplified reasonably and meshed in this paper. Then the whole conjugated heat transfer method is applied to calculate the gasoline engine temperature field. The analysis is carried out on the temperature field, velocity field and heat transfer coefficient results. The results show that the design scheme of the water jacket model meets the cooling need of the new engine. Comparing the calculated results with the experimental ones, great differences are found in local hot regions. More researches on the phenomena and the rules of the boiling heat transfer on the local hot regions in the water jacket of the gasoline engine will be brought out.
The power bond graph is used to establish the dynamic model of telescopic cylinder. Simscape platform enables modeling and simulation of the hydraulic system. Analysis of the telescopic cylinder position characteristi...
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The power bond graph is used to establish the dynamic model of telescopic cylinder. Simscape platform enables modeling and simulation of the hydraulic system. Analysis of the telescopic cylinder position characteristic curve and speed characteristics curve demonstrates the accuracy and reasonableness of the simulation model. All of this provides theoretical basis for the analysis and design of multistage hydraulic cylinder.
The basic theory of statistical energy analysis (SEA) is introduced, a commercial heavy duty truck cab is divided into 35 subsystems applying SEA method, and a three dimensional SEA model of the commercial heavy duty ...
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In this paper, the simulink model of the Brushless DC Motor (BLDCM), which's the actuator of the Electro-Mechanical Braking (EMB) system, was established. And then, typical faults of the BLDCM were analyzed. These...
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ISBN:
(纸本)9781424494361
In this paper, the simulink model of the Brushless DC Motor (BLDCM), which's the actuator of the Electro-Mechanical Braking (EMB) system, was established. And then, typical faults of the BLDCM were analyzed. These faults included the faults of the motor, the power transistor, and the Hall sensor. In addition, the detailed theoretical analysis of these faults simulation results and their effect on braking ability are given.
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