2020
DOI: 10.3390/wevj11020029
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Research on the Electromagnetic-Heat-Flow Coupled Modeling and Analysis for In-Wheel Motor

Abstract: In this paper, a 15 KW in-wheel motor (IWM) is taken as the research object, and the coupling factors among the electromagnetic field, temperature field and flow field are analyzed, and the strong and weak coupling factors between the three fields are clarified, and by identifying the strong and weak coupling factors between the three fields, a three-field coupling analysis model for IWM with appropriate complexity is established, and the validity of the model is verified. In a certain driving condition, the e… Show more

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Cited by 10 publications
(3 citation statements)
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“…The author's research object is a certain marine submersible permanent magnet motor, which is a new type of motor with air gap water cooling; the cooling water enters the motor through the gap between the bearing and the rotating shaft [17]. Since the thermal circuit method cannot reflect the influence of the amount of water absorbed by the motor on the heat dissipation of the motor, and in order to obtain the fine flow field and temperature field results of each part of the motor, the author uses the CFD program Fluent to simulate the three-dimensional flow field and temperature field of the motor; through theoretical analysis and geometric structure improvement, the reverse flow phenomenon in the flow field inside the motor is eliminated, the heat dissipation efficiency of the whole machine is improved, and the flow field and temperature rise of the motor are optimized [18].…”
Section: Literature Reviewmentioning
confidence: 99%
“…The author's research object is a certain marine submersible permanent magnet motor, which is a new type of motor with air gap water cooling; the cooling water enters the motor through the gap between the bearing and the rotating shaft [17]. Since the thermal circuit method cannot reflect the influence of the amount of water absorbed by the motor on the heat dissipation of the motor, and in order to obtain the fine flow field and temperature field results of each part of the motor, the author uses the CFD program Fluent to simulate the three-dimensional flow field and temperature field of the motor; through theoretical analysis and geometric structure improvement, the reverse flow phenomenon in the flow field inside the motor is eliminated, the heat dissipation efficiency of the whole machine is improved, and the flow field and temperature rise of the motor are optimized [18].…”
Section: Literature Reviewmentioning
confidence: 99%
“…An oil-spray-cooled system is a more common method for stator cooling because it has smaller flow resistance and more flexible oil spray paths. Unlike the EMs applied in the central drive units with a wide variety of cooling methods, IWMs mainly focus on air cooling [11] and water or oil channel design in the cooling jacket [12][13][14]. However, compared with the EMs in EAs, IWMs have a flatter structure as well as smaller surface area, which is theoretically proportional to the heat dissipation capacity when using a cooling jacket.…”
Section: Introductionmentioning
confidence: 99%
“…Vertical steering enables a steering angle exceeding 90 • , allowing for independent wheel rotation for turning in place and horizontal movement. However, it presents challenges such as occupying upper space due to the steering motor, limited power, increased control complexity, reduced durability, and difficulties in thermal management of in-wheel motors [15][16][17]. Horizontal steering, on the other hand, utilizes a single actuator to transmit power to the axles instead of in-wheel motors.…”
Section: Introductionmentioning
confidence: 99%