Honda has employed IMA (Integrated Motor Assist) technology in the 2006 Civic Hybrid to enhance fuel efficiency and improve dynamic performance of a compact 4-door sedan.
Our objective in developing the motor in the IMA system was to increase power, torque, and efficiency while maintaining the size of a previous motor. To achieve this aim, we focused on the following points:
IPM (Interior Permanent Magnet) rotor structure
High performance magnet
Flat wire coil
Polygonal bus ring structure
Integrated 3-phase connector
As a result, motor power was increased by 50% and achieved a 3 point average increase in efficiency, enabling vehicle dynamic performance and fuel efficiency objectives to be achieved.
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