Modeling and Drivability Assessment of a Single-Motor Strong Hybrid at Engine Start

Paper #:
  • 2010-01-1440

Published:
  • 2010-05-05
Citation:
He, Y., Bucknor, N., Smith, A., and Yang, H., "Modeling and Drivability Assessment of a Single-Motor Strong Hybrid at Engine Start," SAE Technical Paper 2010-01-1440, 2010, https://doi.org/10.4271/2010-01-1440.
Pages:
9
Abstract:
Using a clutch to disconnect and shut-off the engine when engine power is not required, the single-motor strong hybrid has the potential for significant fuel economy improvement with reduced costs and less system complexity. However, it is a challenge for the single-motor strong hybrid to maintain acceptable drivability at engine start since it requires diverting motor torque through a slipping clutch to start the engine.In this study, dynamic simulations of the hybrid transmission driveline with hydraulic and motor controls have been employed to assess the feasibility of the single-motor strong hybrid, to address drivability issues specific to this hybrid architecture at engine start, and to develop control methods to manage driveline disturbances to an acceptable level.
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