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Vibration Torque Interception using Multi-Functional Electromagnetic Coupling in a HEV Drive Line

Journal Article
2016-01-1181
ISSN: 2167-4191, e-ISSN: 2167-4205
Published April 05, 2016 by SAE International in United States
Vibration Torque Interception using Multi-Functional Electromagnetic Coupling in a HEV Drive Line
Sector:
Citation: Watanabe, T., Fujiyoshi, T., and Murakami, A., "Vibration Torque Interception using Multi-Functional Electromagnetic Coupling in a HEV Drive Line," SAE Int. J. Alt. Power. 5(1):157-166, 2016, https://doi.org/10.4271/2016-01-1181.
Language: English

Abstract:

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.