Method for reducing peak phase current and decreasing staring time for an internal combustion engine having an induction machine

Patent · 31 December 2001

OSTI ID:874195

Amey, David L ^[1]; Degner, Michael W ^[2]

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1. Birmingham, MI
2. Farmington Hills, MI

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.

• Research Organization: Midwest Research Institute
• DOE Contract Number: AC36-83CH10093
• Assignee: Ford Global Technologies, Inc. (Dearborn, MI)
• Patent Number(s): US 6335609
• OSTI ID: 874195
• Country of Publication: United States
• Language: English

Related Subjects

/318/
anticipating
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command
concurrent
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decreasing
determines
elapsed
engine
flux
induction
induction machine
internal
internal combustion
machine
method
operating
peak
period
phase
pre-fluxing
predetermined
provides
reduced
reducing
staring
start
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starteralternator
starting
strategy
time
torque