초록 ▼

A method for reducing the starting time and reducing the peak phase currents for an internal combustion engine that is started using an induction machine starter/alternator. The starting time is reduced by pre-fluxing the induction machine and the peak phase currents are reduced by reducing the flux

A method for reducing the starting time and reducing the peak phase currents for an internal combustion engine that is started using an induction machine starter/alternator. The starting time is reduced by pre-fluxing the induction machine and the peak phase currents are reduced by reducing the flux current command after a predetermined period of time has elapsed and concurrent to the application of the torque current command. The method of the present invention also provides a strategy for anticipating the start command for an internal combustion engine and determines a start strategy based on the start command and the operating state of the internal combustion engine.

대표청구항 ▼

1. A method for reducing the time to start an internal combustion engine started with an induction machine, said method comprising the steps of:commanding a flux current alone to the induction machine for a predetermined period of time; and commanding a torque current to the induction machine after

1. A method for reducing the time to start an internal combustion engine started with an induction machine, said method comprising the steps of:commanding a flux current alone to the induction machine for a predetermined period of time; and commanding a torque current to the induction machine after said predetermined period of time said flux current alone is commanded to the induction machine; whereby a desired level of torque for starting the internal combustion engine is produced by the induction machine substantially instantaneously when said torque current is commanded to the induction machine.