The new eliica motor to increase driving range to 400km

Tadashi Takako, Osamu Shimizu., Takahisa Yashiro, Manabu Omae, Hiroshi Shimizu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recently, electric vehicle motors arc mainly synchronous motor or induction motor, which arc high-speed and high-powered combined with a reduction gear because of size and weight point of view. By the advancement of magnet materials, electromagnetic steel sheets, winding technology, and control technology the 1PM method of synchronous motor has been researched for electric vehicle use. However, they are also high-speed, high-powered motors, which are combined with a reduction gear. In the year 2004, Keio University Electric Vehicle Laboratory has developed a high performance electric vehicle called; "'Eliica" Eliica's performance exceeded that of existing internal combustion vehicles and reached a maximum speed of 370km/h, an acceleration of 0-100km/h in 4 seconds. However, for driving range, there is still more room for improvement. At Keio University Electric Vehicle Laboratory a direct drive motor; which does not use any reduction gear and directly transmit the output to the wheel from the motor axis has been experimentally manufactured. This direct drive motor is an IPMSM that has an outer rotor structure. In this paper, comparisons between direct drive motor, which is low speed high torque, and high-speed high-powered inner rotor motor is done to see which motor is better for the use of electrical vehicles. From these experiment results, by mounting this motor in Eliica, the driving range is estimated to be 1.3 times longer.

Original languageEnglish
Title of host publicationElectric Drive Transportation Association - 23rd Int. Electric Vehicle Symposium and Exposition 2007, EVS 2007 (Battery, Hybrid, Fuel Cell) Conf. Proc. - Sustainability
Subtitle of host publicationThe Future of Transportation
Pages698-723
Number of pages26
Publication statusPublished - 2007 Dec 1
Event23rd International Battery, Hybrid and Fuel Cell Electric Vehicle Symposium and Exposition 2007 - Sustainability: The Future of Transportation, EVS 2007 - Anaheim, CA, United States
Duration: 2007 Dec 22007 Dec 5

Publication series

NameElectric Drive Transportation Association - 23rd Int. Electric Vehicle Symposium and Exposition 2007, EVS 2007 (Battery, Hybrid, Fuel Cell) Conf. Proc. - Sustainability: The Future of Transportation
Volume2

Other

Other23rd International Battery, Hybrid and Fuel Cell Electric Vehicle Symposium and Exposition 2007 - Sustainability: The Future of Transportation, EVS 2007
CountryUnited States
CityAnaheim, CA
Period07/12/207/12/5

Keywords

  • Direct drive
  • Eliica
  • IPMSM
  • In-wheel motor
  • Outer rotor

ASJC Scopus subject areas

  • Fuel Technology

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  • Cite this

    Takako, T., Shimizu., O., Yashiro, T., Omae, M., & Shimizu, H. (2007). The new eliica motor to increase driving range to 400km. In Electric Drive Transportation Association - 23rd Int. Electric Vehicle Symposium and Exposition 2007, EVS 2007 (Battery, Hybrid, Fuel Cell) Conf. Proc. - Sustainability: The Future of Transportation (pp. 698-723). (Electric Drive Transportation Association - 23rd Int. Electric Vehicle Symposium and Exposition 2007, EVS 2007 (Battery, Hybrid, Fuel Cell) Conf. Proc. - Sustainability: The Future of Transportation; Vol. 2).