scholarly journals Dimensioning of a permanent magnet synchronous machine for electric vehicles according to performance and integration requirements

2022 ◽  
Author(s):  
Moritz Künzler ◽  
Robin Pflüger ◽  
Robert Lehmann ◽  
Quentin Werner
Keyword(s):  
Energy Consumption ◽  
Permanent Magnet ◽  
Electric Vehicles ◽  
Synchronous Machine ◽  
Electromagnetic Properties ◽  
Permanent Magnet Synchronous Machine ◽  
Test Cycle ◽  
Element Analysis ◽  
First Results ◽  
Vehicle Test

AbstractFinding the optimum design of electrical machines for a certain purpose is a time-consuming task. First results can be achieved, however, with scaling known machine designs in length and turns per coil by means of analytical equations, while scaling in diameter requires finite element analysis (FEA), since electromagnetic properties change significantly. In this paper, the influence of diameter, length and turns per coil on the torque, power and efficiency of a permanent magnet synchronous machine (PMSM) are investigated in a sensitivity analysis. Furthermore, their impact on energy consumption in different drive cycles and different vehicle types is outlined. A highway car and a city car are compared in a highway cycle, a city cycle and the Worldwide Harmonized Light Vehicle test Cycle. The results describe significant differences in energy consumption for different machine designs in one application but also between different applications. This highlights the necessity to decide whether or not the powertrain should be optimized for a single purpose or for universal use.

Research on a Five-Phase In-Wheel Permanent-Magnet Synchronous Machine

2013 ◽  
Vol 416-417 ◽  
pp. 144-148
Author(s):  
Ping Zheng ◽  
Yi Sui ◽  
Bin Yu ◽  
Fan Wu ◽  
Peng Fei Wang
Keyword(s):  
Finite Element Analysis ◽  
Permanent Magnet ◽  
Electric Vehicles ◽  
Fault Tolerant ◽  
Single Layer ◽  
Synchronous Machine ◽  
Permanent Magnet Synchronous Machine ◽  
Element Analysis ◽  
Electric Drive System ◽  
Electromagnetic Performance

This paper discusses the design of a fault-tolerant Permanent-Magnet Synchronous Machine (PMSM) for electric vehicles. The investigated machine is a five-phase in-wheel machine with 40 slots and 42 poles. The electromagnetic performance of double layer and single layer windings are compared based finite element analysis. The magnetic isolation abilities of the two winding types are also compared. Finally, a 12kW five-phase fault-tolerant machine which is able to meet the demand of electric drive system is designed and evaluated.

scholarly journals Influence of Test Cycles on Energy Consumption Test of Electric Vehicles

2021 ◽  
Vol 241 ◽  
pp. 02004
Author(s):  
Yu Liu ◽  
Kunqi Ma ◽  
Hanzhengnan Yu ◽  
Jingyuan Li ◽  
Xiaopan An
Keyword(s):  
Energy Consumption ◽  
Electric Vehicles ◽  
Energy Demand ◽  
Test Results ◽  
Test Cycle ◽  
Light Duty ◽  
Actual Use ◽  
Light Duty Vehicle ◽  
Simulation Results ◽  
Vehicle Test

In order to verify the necessity of the application of China Automotive Test Cycle which is constructed through actual driving data in china of more than 55 million kilometers in the energy consumption test of electric vehicles in China, this paper compares the characteristics of New European Test Cycle (NEDC), World-wide harmonized Light duty Test Cycle (WLTC) and China light-duty vehicle test cycle for passenger car(CLTC-P), and analyzes the differences of vehicle energy demand under different test cycles from theoretical and simulation point, simulation results show that the endurance mileage is longest and the energy recovery strategy is more effective under CLTC-P cycle. Finally, four types of vehicles are selected to carry out the endurance mileage test under these three test cycles. The test results are consistent with the simulation results. Therefore, in order to make the test results of electric vehicle energy consumption closer to the actual use of our country, CLTC-P should be selected to replace NEDC and WLTC cycle.

Sign in / Sign up

Export Citation Format

Share Document