scholarly journals On the Design of In-Wheel-Hub Motor Transmission Systems with Six-Link Mechanisms for Electric Vehicles

2018 ◽  
Author(s):  
Ngoc-Tan Hoang ◽  
Hong-Sen Yan
Keyword(s):  
Electric Vehicles ◽  
Power Flow ◽  
Operation Mode ◽  
Synthesis Process ◽  
Energy Regulation ◽  
Mode Transition ◽  
Flow Paths ◽  
Simulation Process ◽  
Working Principle ◽  
Configuration Synthesis

Nowadays, there are several electric vehicle (EV) on the market, due to the innovation of technology that promotes the new components such as battery, transmission, electric motors. This paper proposes a design approach for the configuration synthesis and simulation of the in-wheel-hub motor transmissions with the six-link mechanisms. The synthesis process shows 6 mechanisms with six members and eight joints, 15 new clutchless motor transmissions and 16 new clutched motor transmissions. A novel motor transmission in the feasibility of the synthesized configurations is selected as an example to analyze the working principle with operation modes and power flow paths. And, this design is modeled for the simulation process that generates the results of operation mode transition and energy regulation.

scholarly journals On the Design of In-Wheel-Hub Motor Transmission Systems with Six-Link Mechanisms for Electric Vehicles

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2920 ◽  
Author(s):  
Ngoc-Tan Hoang ◽  
Hong-Sen Yan
Keyword(s):  
Electric Vehicles ◽  
Power Flow ◽  
Operation Mode ◽  
Design Procedure ◽  
Synthesis Process ◽  
Energy Regulation ◽  
Mode Transition ◽  
Electric Motors ◽  
Simulation Process ◽  
Configuration Synthesis

Nowadays, there are several electric vehicles (EV) on the market, due to the innovation of technology that promotes new components such as batteries, transmissions, and electric motors. This study proposes the design procedure for the configuration synthesis and simulation of in-wheel-hub motor transmissions with six-link mechanisms. The synthesis process shows six mechanisms with six members and eight joints, 15 new clutchless motor transmissions, and 16 new clutched motor transmissions. A novel motor transmission with the possibility of synthesized configurations is chosen as a case to analyze the working rules connected with the power flow modes and operation modes. Moreover, this design is modeled for the simulation process that generates the results of the operation mode transition and energy regulation.

scholarly journals On the Innovation Design for Two-Motor Transmissions with Eight-Link Mechanisms in the Electric Vehicles

2019 ◽  
Vol 9 (1) ◽  
pp. 140
Author(s):  
Ngoc-Tan Hoang ◽  
Hong-Sen Yan
Keyword(s):  
Electric Vehicles ◽  
Power Flow ◽  
Fossil Fuels ◽  
New Technology ◽  
Operation Mode ◽  
Operating Costs ◽  
Energy Management Strategy ◽  
Flow Paths ◽  
Wide Range ◽  
Working Principle

A decade ago, electric vehicles (EV) made a boom in the automobile market, as they started to become a growing market section in the transportation space. The reasons behind the boom were to decrease environmental pollution by reducing the use of fossil fuels, lowering transportation operating costs, and increased general consumer interest in the new technology. This work generates a streamlined process for the design and simulation of motor transmissions with eight-link mechanisms. This procedure presents a wide range of motor transmissions such as 34 new clutchless systems and 34 new clutched systems. Two novel feasible motor transmissions of the design process are taken as a sample to dissect the working principle conjoined both power flow paths and operation modes. In addition, these designs are conducted for modeling and computer simulation procedures that obtain the results of the energy management strategy and operation mode variation.

Automatic Enumeration of Feasible Configuration for the Dedicated Hybrid Transmission With Multi-Degree-of-Freedom and Multiplanetary Gear Set

2019 ◽  
Vol 141 (9) ◽  
Author(s):  
Xiangyang Xu ◽  
Hanqiao Sun ◽  
Yanfang Liu ◽  
Peng Dong
Keyword(s):  
Operation Mode ◽  
Planetary Gear ◽  
Design Approach ◽  
Synthesis Process ◽  
Second Step ◽  
Design Constraints ◽  
Hybrid Transmission ◽  
Planetary Gear Sets ◽  
Configuration Synthesis ◽  
Novel Design

This paper presents a novel design approach to systematically synthesize available configurations for dedicated hybrid transmission (DHT) systems subject to design constraints and required operation modes by using simple planetary gear sets (PGSs). The configuration synthesis process includes two main steps. The first step is the synthesis of the PGSs by synthesizing all the components to a simple PGS subject to the design constraints. The second step is to combine the structural and shift elements into all configurations and detect those meeting the requirements with the mechanical and operation mode constraints. By applying the proposed design approach, the configurations of the Toyota’s hybrid systems (THSs) and Voltec-II prove the feasibility of the method. Furthermore, several new DHT configurations are synthesized under the new design conditions. The proposed design approach is capable of systematically synthesizing new DHT systems with multiple PGSs, variable design constraints, and expected modes.

Active Control of Dual-Bell Nozzle Operation Mode Transition by Film Cooling and Mixture Ratio Variation

2020 ◽  
Vol 36 (1) ◽  
pp. 47-58 ◽  
Author(s):  
Dirk Schneider ◽  
Ralf Stark ◽  
Chloé Génin ◽  
Michael Oschwald ◽  
Konstantin Kostyrkin
Keyword(s):  
Active Control ◽  
Film Cooling ◽  
Operation Mode ◽  
Mode Transition ◽  
Mixture Ratio ◽  
Ratio Variation ◽  
Dual Bell

scholarly journals Smart charging for electric vehicles to minimise charging cost

2017 ◽  
Vol 231 (6) ◽  
pp. 526-534 ◽  
Author(s):  
Yue Wang ◽  
David Infield ◽  
Simon Gill
Keyword(s):  
Electric Vehicle ◽  
Electric Vehicles ◽  
Distribution System ◽  
Power Flow ◽  
Optimal Power Flow ◽  
Low Voltage ◽  
Wholesale Price ◽  
Heuristic Method ◽  
Domain Model ◽  
Smart Charging

This paper assumes a smart grid framework where the driving patterns for electric vehicles are known, time variations in electricity prices are communicated to householders, and data on voltage variation throughout the distribution system are available. Based on this information, an aggregator with access to this data can be employed to minimise electric vehicles charging costs to the owner whilst maintaining acceptable distribution system voltages. In this study, electric vehicle charging is assumed to take place only in the home. A single-phase Low Voltage (LV) distribution network is investigated where the local electric vehicles penetration level is assumed to be 100%. Electric vehicle use patterns have been extracted from the UK Time of Use Survey data with a 10-min resolution and the domestic base load is generated from an existing public domain model. Apart from the so-called real time price signal, which is derived from the electricity system wholesale price, the cost of battery degradation is also considered in the optimal scheduling of electric vehicles charging. A simple and effective heuristic method is proposed to minimise the electric vehicles’ charging cost whilst satisfying the requirement of state of charge for the electric vehicles’ battery. A simulation in OpenDSS over a period of 24 h has been implemented, taking care of the network constraints for voltage level at the customer connection points. The optimisation results are compared with those obtained using dynamic optimal power flow.

Fast Service Restoration of Multi-Source Active Distribution Network with Microgrids and Electric Vehicles

2014 ◽  
Vol 672-674 ◽  
pp. 1175-1178
Author(s):  
Guang Min Fan ◽  
Ling Xu Guo ◽  
Wei Liang ◽  
Hong Tao Qie
Keyword(s):  
Electric Vehicles ◽  
Distribution System ◽  
Power Flow ◽  
Optimal Power Flow ◽  
Large Scale ◽  
Distribution Network ◽  
Active Distribution Network ◽  
Optimal Power ◽  
Service Restoration ◽  
Restoration Method

The increasingly serious energy crisis and environmental pollution problems promote the large-scale application of microgrids (MGs) and electric vehicles (EVs). As the main carrier of MGs and EVs, distribution network is gradually presenting multi-source and active characteristics. A fast service restoration method of multi-source active distribution network with MGs and EVs is proposed in this paper for service restoration of distribution network, which takes effectiveness, rapidity, economy and reliability into consideration. Then, different optimal power flow (OPF) models for the service restoration strategy are constructed separately to minimize the network loss after service restoration. In addition, a genetic algorithm was introduced to solve the OPF model. The analysis of the service restoration strategy is carried out on an IEEE distribution system with three-feeder and eighteen nodes containing MGs and EVs, and the feasibility and effectiveness are verified

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