The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Hybrid electric vehicles are one of the most practicable technologies in the automobile industry to conserve resources and to protect the environment. Mode transitions between different modes are critical to improve fuel economy and driving performances. Due to the response delay of the engine and the engagement of the clutch, smooth transitions are sometimes difficult to achieve. Fuzzy sliding mode...
Sensorless control is a promising alternative for controlling Electric Vehicle (EV) and Hybrid Electric Vehicle (HEV) propulsion systems without the need of complex devices, such as resolvers or encoders. As the usage of a physical sensor is avoided, this allows significant cost reductions of the drive, and the reliability of the system is also improved. EVs require an operation range from standstill...
This paper deals with the study and implementation of a losses minimization control method for an integrated multi-drives topology used to interface a multi windings induction machine to more storage units in hybrid electric vehicle parallel drivetrains. The main target is to optimize the management of multi-directional power flows, by reducing the power losses in the induction machine as well as...
Co-simulation can greatly improve the simulation accuracy by integrating advantages of different software in a unified system. In this paper, co-simulation of energy management strategy for hybrid electric vehicle (HEV) is implemented through the secondary development in AVL InMotion system. Firstly, the models of the virtual driver, 3D road and traffic environment are realized in IPG CarMaker. Secondary,...
Regenerative braking is an effective method for hybrid electric vehicle (HEV) to extend their driving range. This paper proposes a method to recover more energy in the process of braking for hybrid electric vehicle using rear motor control. Firstly, a novel control strategy of braking force distribution of the front and rear wheels is proposed. Then, a fuzzy control strategy is designed to determine...
Flux-switching permanent magnet machines (FSPMMs) have been investigated for hybrid electric vehicles (HEVs). This paper presents an optimal FSPMM with 12 stator poles to meet the minimal performance specifications required by the drive machine in the 2010 Prius HEV. After a qualitative analysis based on size equation to briefly compare performances of FSPMMs with four rotor topology structures, a...
Both of the electric variable transmission (EVT) and Toyota Hybrid System (THS) can be used as an power split device in the hybrid electric vehicles (HEVs). They can make the internal combustion engine (ICE) independent of the road loads and run in the high efficiency area to reduce the fuel consumption as well as emissions. However, the planetary gears of THS make serious vibration and noise, limiting...
In this study, a novel mode l of a Hybrid Electric Vehicle (HEV) based off the 2016 Chevy Volt is implemented and examined. The study will also examine the operation of the modified Series Parallel Hybrid Electric Vehicle (SPHEV) and modeled powertrain components contained within. The 2016 Chevy Volt has six unique modes of operation; however, the dual Permanent Magnet Synchronous Motor (PMSM) EV...
Hybrid Electric Vehicle (HEV) is vehicle with least two energy sources. Internal combustion engine (ICE) and BLDCM are combination of commonly used energy sources. BLDCM serves to provide additional torque, with the purpose of HEV can reach set point speed according to the reference model. Commutation of BLDCM is still quite complicated because between the rotational speed of the motor and the speed...
This paper proposes a control scheme for the energy management of plug-in hybrid electric vehicles (HEVs). Consider the urban driving case, the traffic conditions are treated as stochastic processes of the driver demands. Taking the essential characteristics of plug-in HEVs into account, a logical-based optimization approach is applied to realize the equivalent energy cost minimization of the powertrain...
Current automotive engine developments have been driven by improving vehicle fuel consumption. Various ideas have been explored to reduce the fuel consumption of vehicle including variable cylinder engine. The benefit is given by the pumping loss reduction but the scope to reduce mechanical pumping loss has still remained. In this paper, the estimation of fuel consumption on a multi-crankshaft engine...
Hybrid electric vehicle use internal combustion engine (ICE) and electrical power, so it has the advantages of strong power, low fuel consumption, low emissions and so on. The research object of this paper is the single-axle parallel hybrid electric bus. In this paper, a hybrid electric vehicle model including vehicle dynamics system, motor system, engine system, battery system, clutch and energy...
The engine start-stop technology has been widely concerned in the field of hybrid electric vehicles (HEV) for improving the fuel economy and alleviating environment pollution. In this paper, the model predictive control (MPC) is applied to deal with the control problem of engine start-stop with input constraint. Firstly, a nonlinear engine-BSA (belted starter alternator) coupling model is introduced...
The Hybrid Electric Vehicles (HVEs) are reaching a wide diffusion both because the energy density and life of batteries increased in the last years with a decrease of their costs and because the reduction of air pollution is a very important issue, especially in big cities. This latter is one, or probably the main, reason that pushes the development of HEVs and electric vehicles (EVs).
In this paper, a SHEV with a battery that is capable of supporting the maximum traction power demand is considered. Fuzzy logic is used to reduce the number of starts and increase system efficiency and component lifetime for SHEV in a predictive fashion. It has been shown that the predictive control using the future data for a short interval, can decrease the number of engine starts with a simple...
Improvements in fuel economy have always been a dominating driver of vehicle engineering. With some exceptions, benefits attained from hybrid powertrains to transient power delivery has not been the emphasis of research and development efforts. Developing cities around the world would realise significant benefits from improvements to fuel economy, which is outlined in this research by assessing the...
This paper presents design study on windage loss reduction for hybrid excitation flux switching motor employing two types of rotor structure. Conventional flux switching motors have a rotor structure with salient poles, by which windage loss at high speed region becomes serious. To reduce the windage loss, two types rotor are built: One is a cylindrical rotor employing iron rib between adjacent salient...
When using induction motors for hybrid electric vehicle (HEV) applications, variable wide speed control system is always required to drive the induction motor up to 10,000rpm or more. Distorted voltage from the control system causes harmonic currents, which generate additional losses and reduce output torque and efficiency. This paper investigates the current harmonic influence in the induction motor...
This paper designed a new type of hybrid structure of automatic transmission for the heavy duty vehicles. After determining the parameters for the core components according to the working principles of the hybrid vehicle and performance requirements, the mathematical model of hybrid electric vehicles has been completed by using the Simulink. For the purpose of the vehicle's fuel economy and power...
For the heavy-duty hybrid electric vehicle, a smooth control strategy is provided based on the application of the Pontryagin's Minimum Principle. Based on the application of the PMP, a cost function is built up with the goal of the engine output torque, which achieves the optimal shift shock to improve smoothness. An observer is adopted to track the unmeasurable variables in the optimal controller...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.