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Because of the drawbacks of ultracapacitors (UCs) and batteries, an active combination of UCs and Li-ion batteries has been proposed as an energy storage system (ESS) for hybrid electric vehicles (HEVs). Given the complexity of the active control system in an active-combination energy storage system (ACES), the performance match for the ACES used in an HEV is much more complex. In this paper, a widely...
In this article, hardware-in-the-loop simulation platform solutions have been proposed based on the characteristics and demands in development of electronic control unit in hybrid electric vehicles. And completed the development process of the controller hardware-in-the-loop simulation based on the hybrid electric excavator, focus on achieving the CAN communication between TTC200 controller and dSPACE...
Simulation models of HEV equipped with DCT (Dual Clutch Transmission) were built on the basis of Cruise in this article. Control strategy was built according to this kind of HEV. The peculiar dominant position of this configuration was simulated and analyzed.
Compared with single-motor hybrid electric vehicle, the double-motor configuration has higher electric drive capability and driving efficiency, more powerful regulation and more energy-saving potential. Commencing from the structure, the energy-saving ideas and the advantage on energy-saving of the double-motor hybrid electric vehicles, this paper studies the energy-saving efficiency of the double-motor...
This paper presents a driving intention intelligent identification method for hybrid vehicles based on fuzzy inference. In this paper, a fuzzy logic inference system is developed to identify driving intention. The membership functions and rules of fuzzy logic inference system are built for intention identification and the simulation is done in different driving conditions. The simulation results show...
The vehicles in non-steady working condition often suffer the trade-off between power performance and fuel economy and also the lack of accurate ratio control target in the control strategy. With the analysis of power performance and economic performance and a driveline model with MATLAB/Simulink based on experiment data, the optimum matching datasheet control strategy is proposed. The relationship...
An analysis of motor recovery efficiency characteristics in the low-speed was made. Based on this analysis, the control strategy was revised. Simulations were performed on the simulations platform based on Simulink-AMESim co-simulation. Simulation results indicated that the revised control strategy was helpful for increasing the efficiency of energy recovery.
For traditional gearbox, the engine power is cut off while shifting, which will interrupt the power of power-train, make velocity down, affect the acceleration of up gear and lower the vehicle dynamic. A double electric motor hybrid electric vehicle (HEV) that designed in a particular integrated power-train structure provides the necessary condition to deal with power interrupting while shifting....
The photoluminescence (PL) spectra at room temperature for the silicon-based samples doped by La % O+ by ion double implantation are measured. The results show that all the samples possess blue-violet photoluminescence properties under the ultraviolet light excitation and its light emission is stable. The intensity of PL spectra is closely relative to different ion implanting sequence of La and O+...
Supercapacitor has the merits of high efficiency and long lifecycle, which could lead to the mitigating of burthen and prolonging of the lifecycle for batteries in mild hybrid electric vehicle (HEV). This paper proposed the parameters matching for the HEV using the ability of starting engine and motor synchronization. From the results of lifecycle cost and results of fuel economy simulation, the feasibility...
Co-simulation model of forward hybrid electric vehicle (HEV) is established in this paper. And according to three aspects: traditional vehicle model (mechanism system model), electric system model and vehicle control strategy, the precision of the co-simulation model has been analyzed and checked by the revolving drum test bench of the First Automobile Workshop (FAW). The forward simulation model...
The fundamental performance parameters of traction motor for electric vehicle directly influence the motor efficiency region, so the maxima driving range of vehicle is affected. According to empirical design formulae and orthogonal optimization theory of induction motor, this paper designs an orthogonal project with four factors. The simulation results of china city driving cycle that come from electric...
The properties of auxiliary brake and the influences of auxiliary brake to car performance are introduced. The engine brake characters and its influence factors are explained, and the engine brake performance experiment is expounded. It is discussed that the necessity of control CVT ratio during engine braking. The conception of setting vehicle velocity during engine brakes is proposed, the engine...
The mechanical property curve, efficiency and speed operation regions of induction traction motor for electric vehicle are introduced here. According to the vehicle's driving characteristic, the motor mechanical property curve is determined. Within the scope of mechanical property region of the motor, the method of regulating motor efficiency region is presented. Within the speed region, the relation...
In this paper, based on a battery pure electric city bus, principle researches have been offered on the parameters matching of the power-train and main components. The vehicle system was designed integrated, and then simulation platform was developed and established. The dynamic and economy performance can be predicted based on the above work, results show that the designed pure electric city bus...
In this paper, CAN Bus, which works in good real-time and high reliability, was designed and programmed based on 32-bit CPU-MPC5xx with high performance for hybrid electric vehicle (HEV). HEV controller based on MPC5xx was developed which can transfer data by CAN Bus with other ECUs of drivetrain assemblies such as engine, motor and battery according to the HEV control algorithm and requirements....
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