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Motor and its control technology is one of main components of Hybrid Electric Vehicles (HEV). To meet the fast torque response demands of HEV, rotor flux-oriented based vector control algorithm with simulation model is concerned and modular design for hardware and software of controller is present in the paper. Series of anti-jamming and vibration isolation measurements are taken especially to ensure...
In this paper, an axial-radial flux compound-structure permanent-magnet synchronous machine (CSPMSM) which consists of one axial-flux PMSM and one radial-flux PMSM is investigated. The purpose of this kind of machine is to keep the internal combustion engine (ICE) operating at maximum efficiency by harmonizing its two machines during all driving cycles in hybrid electric vehicle (HEV), and therewith...
A permanent magnet dual mechanical port machine (DMPM) is a compact and pure electrical solution to the hybrid electric vehicle traction, which features as two independent rotors and permanent magnets mounted on the outer rotor. The key barrier prevent the DMPM from practical usage is the existence of the brush and slipring. A way to eliminate the brush and slipring is presented in this paper, which...
Dual mechanical port electrical machine (DMPM) is a new breed of energy conversion device and can realize electrical variable transmission in HEV. In this paper, both the equivalent-magnetic-circuit method and FEM are adopted to analyze the electromagnetic coupling of one type permanent magnet DMPM, the uniform field DMPM (UMF-DMPM). The analysis indicates that the electromagnetic coupling between...
This paper describes a compound-structure permanent-magnet synchronous machine (CS-PMSM) system used for hybrid electric vehicles (HEVs). It enables the vehiclepsilas internal combustion engine (ICE) to run at its optimum working points regarding efficiency, almost independently of the changing load requirement at the wheels, thus improving fuel economy and reducing emissions. The key part CS-PMSM...
This paper presents the design and analysis of a new double-stator permanent brushless (DSPMBL) motor for hybrid electric vehicles. The corresponding output power equation is analytically derived. The initial calculation of motor dimensions and parameters, including the core diameter, stack length, permanent magnet size and winding connection modes, are also discussed. A DSPMBL motor is designed....
An automatic hybrid bicycle drive, combining human power and electric assistance via an electronic continuously variable transmission (ldquoe-CVTrdquo), is investigated. A trial design is given for a drive combining two planetary gears and two motor/generators in the rear hub. The motors are nested coaxially and the fixed chain ratio is selected so that the motor volumes are in proportion to their...
In this paper, switched reluctance machine based double-rotor machine (SRDRM) is proposed. It is a kind of new structure electric machine with two electrical ports and two mechanical ports. Firstly, this paper presents the working principle of SRDRM, builds an equivalent magnetic-network model based on its magnetic structure, and establishes the theoretical analysis and computation fundamental. Secondly,...
As a new energy transmission device, dual rotor four-quadrant transmission (4QT) simplifies power-train structure of electrical variable transmission (EVT) and makes internal combustion engine (ICE) operate in high efficiency region. Reduction of fuel consumption and the improvement of vehicle performance are achieved as well. In this paper, different operation modes of EVT are analyzed based on the...
After introduced several common hybrid systems, the article gives out a new hybrid system typology which uses a dual rotor machine as an electrical variable transmission. The article briefly introduces the basic working principles of the machine, then analysis the mathematical model of a novel machine in the outer rotor synchronous reference frame, it gives out the equivalent circuit as well. According...
A dual mechanical ports electric machine (DMPM) with clutch is used as an electrical variable transmission (EVT) in hybrid electric vehicle (HEV). In this paper, the working principle and advantages of this novel converter is explained. Then a method of power parameters matching design for DMPM with clutch considering the fuel economy and power performance based on driving cycle is presented and the...
An optimised switched reluctance motor/generator for a mild hybrid electric vehicle is reported. The machine is designed to fit over a torque converter with no addition to the drive train length, while eliminating the starter motor, alternator and flywheel. Measured static torque shows excellent agreement with the torque calculated by finite element analysis. The initial starting torque specification...
This paper presents two types of hybrid excitation machines for electrical propulsion system such as hybrid electric vehicles and trains. In both machines, both permanent magnet and field coil excitation are employed and work harmoniously in order to provide them with superior field strengthening or weakening capability. The basic working principles of two machines are described. The performance predictions...
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