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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Traction slip control algorithm and strategy for parallel hybrid vehicle are proposed in this paper. Based on the torque distribution strategy of parallel cars, the torque control strategy and algorithm and brake cont...
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ISBN:
(纸本)9781612847191
Traction slip control algorithm and strategy for parallel hybrid vehicle are proposed in this paper. Based on the torque distribution strategy of parallel cars, the torque control strategy and algorithm and brake control strategy of TCS are designed. Under the environment of Matlab/Simulink, the vehicle model and TCS controller model of parallel Hybrid Electric vehicle are built. The simulation test is performed on the low μ road. The simulation results show that the control algorithm can prevent the driven wheels from spinning effectively.
In order to satisfy the requirements of the high reliability of electric control unit(ECU) of the Diesel Engine,the thermal analysis of ECU was performed by using the software FLOTHERM based on the finite volume *** t...
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In order to satisfy the requirements of the high reliability of electric control unit(ECU) of the Diesel Engine,the thermal analysis of ECU was performed by using the software FLOTHERM based on the finite volume *** temperature field of ECU was obtained under different operating *** structural optimization of ECU was completed to solve the problem of local high *** a result,the operational temperature of ECU is reduced under the allowable limit,and its reliability is *** physical experiment shows that the thermal analysis and structural optimization are *** local high temperature could be reduced effectively and the operational reliability is improved.
Based on the YD4A75-C3 electronically controlled common rail diesel engine, using CFD simulation software, the combustion and emission's behavior in cylinder was simulated on the numbers, diameter and arrangement ...
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Based on the YD4A75-C3 electronically controlled common rail diesel engine, using CFD simulation software, the combustion and emission's behavior in cylinder was simulated on the numbers, diameter and arrangement of nozzlesThe research results showed: in the condition of the certain total nozzle flow area, the proper nozzle numbers could improve fuel's atomization quality and increase the uniformity degree of gas mixtureThe staggered arrangement of nozzles could reduce interference and overlap among the adjacent fuel sprays and increase the air utilization and the space distribution of fuel, finally, the degree of mixing was increased obviously.
Take a certain lithium ion power battery pack as the research object, the experimental data shows that ambient temperature, discharge rate, number cycle and etc have great influence with cycle life of the power batter...
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ISBN:
(纸本)9781612847191
Take a certain lithium ion power battery pack as the research object, the experimental data shows that ambient temperature, discharge rate, number cycle and etc have great influence with cycle life of the power battery. This paper take capacity retention as characteristic index which is estimated by least square support vector machine (LV-SVM), experimental results show that the LV-SVM can estimate the variation regularity of capacity retention which varied with the cycle number of power battery pack, and has a high accuracy. The study of this paper takes an effective exploration for the entire vehicle matching and control strategy development of fuel electric vehicle.
This paper discusses the working principle and basic structure of electronically controlled limited slip differential (ELSD). And then, it designs the fuzzy PI self-setting controller for Motor-type ELSD. The simulati...
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This paper discusses the working principle and basic structure of electronically controlled limited slip differential (ELSD). And then, it designs the fuzzy PI self-setting controller for Motor-type ELSD. The simulation and rig test showed that this controller can adjust the limited-slip performance of ELSD according to the driving condition of vehicle. It is beneficial to the application and promotion of ELSD.
For evaluation of commercial vehicle steering characteristics, by analyzing the steering dynamic characteristics of commercial vehicle, this paper use the “speed - lateral acceleration” feature field map method to s...
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For evaluation of commercial vehicle steering characteristics, by analyzing the steering dynamic characteristics of commercial vehicle, this paper use the “speed - lateral acceleration” feature field map method to select the representative and independent performance indices, which could fully describe the vehicle steering performance, and match the relevant test conditions for every index. So a simple and efficient objective evaluation method for steering performance of heavy commercial vehicle is established. Three vehicles are carried out real field test, and the experimental data are compared and analyzed. The results show that the selected indicators could fully reflect the steering dynamical performance of heavy commercial vehicle.
The paper presents a tube model predictive control (MPC) scheme of continuous-time nonlinear systems based on robust control invariant set. The optimization problem considered has a general cost functional rather than...
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ISBN:
(纸本)9781612848006
The paper presents a tube model predictive control (MPC) scheme of continuous-time nonlinear systems based on robust control invariant set. The optimization problem considered has a general cost functional rather than the quadratic one. The scheme has the same online computational burden as the standard MPC with guaranteed nominal stability. Robust stability, as well as recursive feasibility, is guaranteed if the optimization problem is feasible at the initial time instant. Furthermore, an optimization based control scheme is proposed, which inherits the robust properties of the tube MPC scheme. The related optimization problem is solved only at the initial time instant. In particular, we consider a scheme to obtain robust control invariant set for Lipschitz nonlinear systems, and show the effectiveness of the proposed schemes by a simple example.
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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