Method and apparatus for control of transmission shifting

Details Method and apparatus for control of transmission shifting Method and apparatus for control of transmission shifting

2007-01-23

2009-12-29

Lewis, Tisha D (Department: 3655)

Interrelated power delivery controls, including engine control

Transmission control

Engine controlled by transmission

C477S906000, C477S015000, C477S068000, C701S062000, C701S054000, C903S903000, C903S945000

Reexamination Certificate

active

07637846

ABSTRACT:
A method and system to control transmission shifting in a motor vehicle having an automatic transmission is provided, wherein a command for a transmission up-shift is detected, and, inhibited, based upon operator input, engine speed, and vehicle operating conditions. A fuel cutoff event is immediately implemented, along with electrical energy regeneration using vehicle kinetic energy. Operator input includes monitoring accelerator pedal input, and inhibiting the command for the transmission up-shift when a tip-out event occurs. The command for inhibiting the transmission up-shift is discontinued when an accelerator pedal tip-in is detected, or accelerator pedal position is greater than a calibrated value, or when engine output torque exceeds a torque threshold, or when engine speed exceeds a speed threshold.

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patent: 7102313 (2006-09-01), Kadota et al.
patent: 7415342 (2008-08-01), Tamai et al.

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