Multi-mode hybrid electric vehicle is considered as the best power solution because it has many operational modes and can achieve a wider more efficient transmission range. But at same time, also brings some problems, such choice of mode. At present, most commonly used mode-switching strategy rule-based control strategy, but needs to determine logical threshold value each variable in advance. Usually these values are determined by experience, cannot guarantee that obtained optimal solution....

The integrated starter generator used in micro hybrid electric vehicle is usually claw pole motor. core the motor forged by low carbon steel, which of complex technology and eddy current loss whole conductor magnetic field large. To solve these problems, a novel proposed this article, uses iron-based soft composites to prepare insert permanent magnet between poles. By studying preparation process parameters composites, it found that mechanical properties are best under 700 MPa pressing...

Servo press has become the future development trend in field of forging equipment. Its core component is servo motor (permanent magnet synchronous motor, PMSM), and serve completely driven controlled by motor. For ideal drive transmission system advanced press, a conventional PMSM cannot do this well, so an integrated must be used. This article focuses on integration facing application background proposes novel hollow two-sided output with mechanical planetary gear. The designed based PMSM....

The yolk shell is widely used in optoelectronic devices due to its excellent optical properties. Compared single metal nanostructures, shells have more controllable degrees of freedom, which may make experiments and simulations complex. Using neural networks can efficiently simplify the computational process shell. In our work, relationship between size absorption efficiency yolk-shell structure established using a backpropagation network (BPNN), significantly simplifying calculation while...

This paper proposes a cost-effective power management strategy utilizing the data provided by V2I communication techniques for dual electric machine coupling propulsion trucks. We formulate bilevel program where high-level optimizes operation mode implicitly, while low-level computes an explicit policy distribution of two machines. Stochastic model predictive control (SMPC) is employed at high-level, performance which highly depends on prediction accuracy future driving information. To...

This article proposes a locally convergent, computationally efficient model predictive controller with mode switching decisions for the eco-driving problem of electric trucks. The is formulated as bi-level program where high-level optimises speed trajectory and operation implicitly, while low-level computes an explicit policy power distribution two machines. alternating direction method multipliers (ADMM) employed at to obtain optimal solution considering both optimisation integer decisions....

Usually, the conventional low-frequency vibration forming machine has a main transmission mechanism as driving source to provide force and an auxiliary generate force. The chain is long structure complex bloated, which affects process product quality. This paper presents novel mechatronics idea of machine, uses slotted tubular permanent magnet synchronous linear motor (slotted-TPMLM) both source. key that slotted-TPMLM provides sufficient accompanied with certain Consequently, this focuses...

The performance of model predictive control strategies for hybrid electric vehicles (HEVs) highly depends on the accuracy future speed predictions. This paper proposes improved prediction models deterministic (DMPC) and stochastic (SMPC), respectively. For DMPC, neural network-based predictor is first introduced taken as benchmark predictor. A novel considering historical errors proposed, which relies assumption that offset between measurement at current instant a good estimate in short...

The lever or the lever-type mechanism can achieve an inertia amplification effect by appropriately calibrating its structural configuration, and it is also proven to be one of most cost-effective solution for inerter realization compared with other mechanical devices. Benefitting from this property, present paper adopted a new type tuned inerter-like mass damper (TLIMD) attenuating stochastic load-induced structure dynamic responses. A set closed-form formulae TLIMD optimal parameters are...

Flux switching permanent magnet (FSPM) motors, especially outer-rotor FSPM (OR-FSPM), have caught our attention due to their advantages such as robust structure, torque density, energy and fault tolerance. However, the double salient pole structure of OR-FSPM motor causes large fluctuation, which will lead running unstably, poor working accuracy, difficulty achieving good control. Therefore, this paper presents an optimization process for motor/generator in flywheel storage systems (FESS)....

Compared with the conventional servo press, direct drive press even has no transmission mechanism, so it advantages in controllability, precision and energy management. But, forging capacity of is limited by power linear motor. In this paper, a novel driven tubular permanent magnet motor (TPMLM) presented, symmetrical toggle booster mechanism specially proposed to enhance capacity. The mathematical model established, TPMLM designed, experimental prototype manufactured. dynamic...

Accurate sensorless estimation of the operating state vehicle electric coolant pump (ECP) contributes to lower cost and energy consumption thermal management systems. In this study, a model based on improved sparrow search algorithm (ISSA) neural network is proposed solve problems slow convergence easy premature traditional back-propagation (BPNN) used for performance estimation. The feasibility using total electrical power ECP as an estimated input parameter studied. 30 randomized...

The moving magnetic cylindrical Tubular Permanent Magnet Linear Motor (moving type TPMLM) has a large charged coil, high output thrust density and current density, so the heat generated by copper loss iron will seriously affect normal operation. In this paper, thermal research of TPMLM is carried out through theoretical analysis, simulation analysis experimental test, which provide necessary basis for motor design. According to calculation 3D finite element model, temperature field...

With a certain battery capacity, the mileage of an electric vehicle depends on efficiency powertrain. In this paper, novel dual-motor multi-mode coupling powertrain (DMMCP) is proposed. This paper compares it with traditional composed single-motor and two-speed transmission (SMTSP). To make fair comparison, influence component parameters must be considered. So proposes method which can evaluate dynamic or economic performance at same time parameter optimisation. Then economy two powertrains...

Abstract In this paper, a novel type of low frequency vibration plastic forming equipment is proposed, in which the slotted tubular permanent magnet synchronous liner motor (slotted – TPMLM) core component and plays roles power source source. So, paper focuses on research about design - TPMLM. The suppression optimization thrust fluctuation has always been hot issue. But that not purpose article. Here, effect length stator end force influence number poles slots cogging are discussed detail....