Research on Temperature Rise Characteristics of Vehicle Motors Under Bench Working Condition

He, Liange; Shi, Wei; Xia, Xiaohua; Wu, Xinyang; Hongling, Chen; Yan, Xin

doi:10.1007/s42835-021-00853-y

Cited by 9 publications

(2 citation statements)

References 13 publications

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“…Since it is to measure the rotor temperature of calculation of the rotor temperature of the motor is indirectly proved by measuring the winding temperature. The calculation method and process for the motor temperature have been described in detail in the literature (He et al, 2021). The simulated temperature under two working conditions is compared with the temperature obtained from the test, and Fig.…”

Section: Temperaturementioning

confidence: 99%

Damage evolution of vehicle motor rotor under single working condition based on GTN model

He¹,

Zhou²,

Shi³

et al. 2022

Journal of Theoretical and Applied Mechanics

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To study evolution of the void in the material of a motor rotor under different working conditions from a mesoscopic perspective, damage analysis of the rotor has been carried out based on thermal-mechanical coupling theory. According to the test methods of GB/T 228.1-2010 Part 1 and GB/T 228.2-2015 Part 2, tensile tests were conducted on rotor materials at different temperatures to obtain basic mechanical property parameters, and parameters of the fine-scale damage model at different temperatures were fitted by combining orthogonal tests and a finite element inverse calibration method. Then, the accurate temperature distribution law of the motor rotor was obtained through CFD calculation. Based on the material parameters and temperature data, the void evolution of the rotor material under thermal-mechanical load was studied by using the finite element method. The results show that: under the rated conditions, the stress concentration of the rotor is mainly appeared in the joint with the shaft, the maximum stress was 304.1 MPa, which did not reach the yield limit of the material. No plastic deformation occurred, so the volume fraction of voids inside the rotor material did not change still for the initial pore volume fraction of 2.5 • 10 −3 . In the peak condition, the stress concentration appeared in the rotor plate across the joint of the magnetic bridge and pole shoe with a maximum stress of 354.4 MPa and a small plastic strain of 1.133 • 10 −3 . The pore volume fraction increased to 2.503 • 10 −3 , where the initial pore growth of 2.150 • 10 −6 and the secondary pore nucleation of 2.079 • 10 −12 .

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Section: Temperaturementioning

confidence: 99%

Damage evolution of vehicle motor rotor under single working condition based on GTN model

He¹,

Zhou²,

Shi³

et al. 2022

Journal of Theoretical and Applied Mechanics

Self Cite

View full text Add to dashboard Cite

show abstract

“…Studies regarding its thermal behavior and losses were extensively done to ensure that the machine can cope with the load without damaging its winding insulation [6], [9] which is the only thermal-sensitive component in the machine. Tested for the WLTP speed profile, the clutch application shows that the SynRM temperature stays within the safe temperature range.…”

Section: Introductionmentioning

confidence: 99%

Influence of temperature on power factor and operating area of SynRM machine in automotive equipment

Rasid,

Lanfranchi,

Ospina

et al. 2024

IJPEDS

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Across various applications, electrical machines are intensely replacing conventional hydraulic and pneumatic actuators in applications with a higher degree of complexity. In our previous study, a SynRM machine with a segmented rotor was designed to operate as a clutch actuator, to be placed in the gear housing which suffers from a high ambient temperature. This makes it necessary to predict the considerable potential influence of temperatures. This study evaluates the influence of winding resistance variation due to temperature on the machine power factor and its operating area. The evaluation is done for the condition of the automotive battery supply of 14 V, 50 A. An experimentally validated analytical model based on the SynRM machine phasor diagram was used to assess the torque-speed area and power factor variation. The main contribution is presented in the form of a tool represented as an abacus that allows the user of the machine to track the power factor and maximum speed for a range of winding resistance values. On a selected operating point of (Γ, N) = (0.57 N.m, 3500 rpm), it is demonstrated that the winding resistance should be reduced below 0.2 Ω, to be able to achieve the targeted speed, while the power factor is at 0.9.

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A composite electrochemical-thermal model for the determination of thermal profiles of lithium-ion cell for electric vehicle application

Sangiri

Sardar²,

Ghosh³

et al. 2022

Electr Eng

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Research on Temperature Rise Characteristics of Vehicle Motors Under Bench Working Condition

Cited by 9 publications

References 13 publications

Damage evolution of vehicle motor rotor under single working condition based on GTN model

Damage evolution of vehicle motor rotor under single working condition based on GTN model

Influence of temperature on power factor and operating area of SynRM machine in automotive equipment

A composite electrochemical-thermal model for the determination of thermal profiles of lithium-ion cell for electric vehicle application

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