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High Performance Motor and Inverter System for a Newly Developed Electric Vehicle
Technical Paper
2018-01-0461
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper describes a newly developed motor and inverter system with maximum torque of 320 Nm and maximum power of 110 kW for a 2018 model year EV. The system achieves this performance with no increase in size from the previous 2013 model year system with maximum torque of 254 Nm and maximum power of 80 kW.
The specific features of the new system described in this paper are summarized below.
A new inverter power module that adopts a direct cooling structure produces higher current density than the previous model. The designs of components experiencing structural and electrical variation that affects heat generation by the power semiconductors were confirmed. Furthermore, the motor temperature is estimated for thermal protection. These features allow for control logic that can optimally manage the temperatures of the power semiconductors and the motor to facilitate the high torque performance of the system.
The motor voltage management has also been optimized in order to reduce the current level and thereby contributes to the system’s high power performance and high efficiency. The motor also adopts magnets with reduced heavy rare earth elements. This improves heat resistance and obtains resource savings.
In addition, one of the novel features of the new EV is e-Pedal that provides not only deceleration but also stopping by operating only the accelerator pedal. This is achieved by motor control logic of the motor and inverter system that generates the optimum motor torque in response to each road grade.
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Citation
Namiki, K., Murota, K., and Shoji, M., "High Performance Motor and Inverter System for a Newly Developed Electric Vehicle," SAE Technical Paper 2018-01-0461, 2018, https://doi.org/10.4271/2018-01-0461.Data Sets - Support Documents
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References
- Sato , Y. , Ishikawa , S. , Okubo , T. , Abe , M. , and Tamai , K. Development of High Response Motor and Inverter System for the Nissan LEAF Electric Vehicle SAE Technical Paper 2011-01-0350 2011 10.4271/2011-01-0350
- Oki , S. , Ishikawa , S. , and Ikemi , T. Development of High-power & High-efficiency Motor for a Newly Developed Electric Vehicle SAE Technical Paper 2012-01-0342 2012 10.4271/2012-01-0342
- Shimizu , H. , Okubo , T. , Hirano , I. , Ishikawa , S. et al. Development of an Integrated Electrified Powertrain for a Newly Developed Electric Vehicle SAE Technical Paper 2013-01-1759 2013 10.4271/2013-01-1759
- Selogie , M. One-Pedal Driving - Enjoy the Drive SAE 2017 Hybrid and Electric Vehicle Technologies Symposium 2017
- Wang , J. , Besselink , I. J. M. , van Boekel , J. J. P. , and Nijmeijer , H. Evaluating the Energy Effi ciency of a one Pedal Driving Algorithm European Battery, Hybrid and Fuel Cell Electric Vehicle Congress 2015