Development of Electric Motor for Electric Motorcycle for Business Use Honda R&D Company, Limited

Format:

Book

Conference/Event

Author/Creator:

Kobayashi, Naoki, author.

Conference Name:

Small Engine Technology Conference & Exposition (2011-11-08 : Sapporo, Japan)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Tokyo, JAPAN Society of Automotive Engineers of Japan 2011

Summary:

A new DC brushless motor, which has an almost equivalent drivingperformance to a 50 cm₃ scooter engine, has been developed to beused in a new electric motorcycle for business. The traction motoris compact enough to be mounted close to the driveshaft of thetransmission, which helps reduce friction in the drive train.Consequently, in the downsized motor, by mounting the drivetrain unit with the PDU (Power Drive Unit) on the wheel side byapplying reduction gears, it enables the reduction of maximum motortorque requirement. It also enables other parts of the drive systemto be integrated into one unit. In this motor, IPM (InteriorPermanent Magnet) structure has been implemented to cope with thehigh rotation of the motor, and the concentrated winding statorcoil has been implemented for downsizing. As for the rotor, themagnets were placed in sections and the yoke shapes were improvedto achieve higher rotation speeds that provide the higher power.The motor performances with the maximum power of 2.8 kW, themaximum torque of 11 Nm, the practical efficiency of 75% or more,and the maximum motor speed of 9000 r/min or more, have beenachieved, which have satisfied the maximum specifications requiredfrom the drive train unit of the motorcycle

Notes:

Vendor supplied data

Publisher Number:

2011-32-0560

Access Restriction:

Restricted for use by site license