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An Electric-Drive to Parallel-Drive Mode Transition Control Strategy for a P2 Hybrid Powertrain
Technical Paper
2020-01-5099
ISSN: 0148-7191, e-ISSN: 2688-3627
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Automotive Technical Papers
Language:
English
Abstract
Hybrid powertrains have become many original equipment manufacturers (OEMs)’ choice to meet ever-stringent fuel consumption regulations. A P2 powertrain technology is widely adopted by automotive OEMs to reuse existing engines and transmission production capacity and reduce investment. A standalone P2 module of an integrated e-motor with an engine decoupling wet clutch is developed and applied in a transverse-mounted P2 hybrid powertrain system. A P2 hybrid powertrain controller has been developed to test and validate the P2 module and control strategy. This P2 powertrain system with a decoupling clutch capable of slipping control enables the vehicle launch or low-speed drive in engine direct-drive mode. A control algorithm that controls the clutch slipping to transmit the desired cranking torque from P2 e-motor to fast-start the engine during the drive mode change from Electric drive to Parallel drive has been developed and validated. The proposed engine slip-start with clutch pressure control has achieved robust results of a fast and smooth transition from the electric to hybrid mode.
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Citation
Tan, F., Zhang, H., and Yan, E., "An Electric-Drive to Parallel-Drive Mode Transition Control Strategy for a P2 Hybrid Powertrain," SAE Technical Paper 2020-01-5099, 2020, https://doi.org/10.4271/2020-01-5099.Data Sets - Support Documents
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References
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