Transmission upshift input torque modulation for a hybrid...

Details Transmission upshift input torque modulation for a hybrid... Transmission upshift input torque modulation for a hybrid...

2008-03-13

2011-11-22

Restifo, Jeffrey J (Department: 3618)

Motor vehicles

Power

Electric

C180S065285, C180S065280

Reexamination Certificate

active

08061462

ABSTRACT:
In a powertrain for motor vehicle that includes an engine, an electric machine able to function alternately as a motor and a generator, and a transmission whose input is driveably connected to the engine and the electric machine, a method for controlling transmission input torque during an upshift including using the engine to produce torque transmitted to the transmission input, during the ratio change phase of the upshift, operating the electric machine as a generator, and during the ratio change phase of the upshift, controlling a net torque transmitted to the transmission input by using the engine to drive the transmission and the electric machine concurrently.

REFERENCES:
patent: 5943918 (1999-08-01), Reed et al.
patent: 6988976 (2006-01-01), Potter
patent: 7261670 (2007-08-01), Endo et al.
patent: 7460943 (2008-12-01), Yamamoto et al.
patent: 7552003 (2009-06-01), Suzuki et al.
patent: 7575078 (2009-08-01), Muta et al.
patent: 2009/0233758 (2009-09-01), Soliman et al.

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