In the present paper, we introduce a drivetrain system using an electromagnetic coupling for hybrid electric vehicles, and propose a new control concept of vibration torque interception. The electromagnetic coupling is an electric machine that is composed of a pair of rotors, and electromagnetic torque acts mutually between the rotors. In the drivetrain system, the electromagnetic coupling works as a torque transmission device with a rotational-speed-converting function. We demonstrate that, by using this control, the electromagnetic coupling also works as a damping device that intercepts the vibration torque of the internal combustion engine, while transmitting the smooth torque to its drive line. Using a model of a two-inertia resonance system, a control system is designed such that a transfer function representing input-to-output torque is shaped in the frequency domain. Experimental results obtained using an electromagnetic coupling demonstrate the effectiveness of the proposed concept.
Vibration Torque Interception using Multi-Functional Electromagnetic Coupling in a HEV Drive Line
Sae Int. J. Alt. Power
SAE 2016 World Congress and Exhibition ; 2016
Sae International Journal of Alternative Powertrains ; 5 , 1 ; 157-166
2016-04-05
10 pages
Conference paper
English
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