Ford Global Technolgoies, LLC

Steve Johnson

Paul Turner

Peter Brittle

James Wright

Ashish Kumar Naidu

Michael John Cade

Ryan Wells

Carl Stephen Newman

Sam Watton

Pierce O'SULLIVAN

Methods and systems are provided for a boosted engine system having an engine arranged to receive boosted air from a variable geometry turbocharger and an electrically powered compressor arranged in parallel with the turbocharger. During temporary high torque demands above a predefined level, the electrically powered compressor may be used to supplement the flow of boosted air from the turbocharger. Additionally, a recirculation circuit around the electrically powered compressor may be provided to build up pressure in the electrically powered compressor before it is connected to the engine so as to minimize fluctuations in engine boost pressure upon start-up of the electrically powered compressor.

Boosted engine system of a motor vehicle

An exemplary method of providing torque-assist to a crankshaft of an internal combustion engine includes, among other things, assisting a rotation of the crankshaft using an electric machine during the transition between stages of a multi-stage forced induction system.

Method and system to provide engine torque

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Brentwood, United Kingdom

Steve Johnson