Closed loop shift quality control system

Details Closed loop shift quality control system Closed loop shift quality control system

1986-12-04

1988-02-16

Braun, Leslie

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74851, 74857, 74858, B60K 4106, B60K 4118

Patent

active

047247231

ABSTRACT:
The output power of an automotive powertrain including a throttled engine and a stepped ratio transmission is maintained substantially constant during upshifting of the transmission. The powertrain output torque is actively measured during shifting, and the output power of the powertrain is controlled by modulation of the engine throttle position and spark timing, and the transmission clutch apply pressures.

REFERENCES:
patent: 3712156 (1973-01-01), Kuhnle
patent: 3792630 (1974-02-01), Hause
patent: 3886818 (1975-06-01), Wurst
patent: 4246805 (1981-01-01), Umezawa
patent: 4355550 (1982-10-01), Will et al.
patent: 4389910 (1983-06-01), Lockhart
patent: 4403527 (1983-09-01), Mohl et al.
patent: 4467673 (1984-08-01), Hamada et al.
patent: 4488455 (1984-12-01), Shetler et al.
patent: 4520694 (1985-06-01), Eschrich et al.
patent: 4527678 (1985-07-01), Pierre et al.
patent: 4541052 (1985-09-01), McCulloch

Affiliated with

Also associated with

Rating

Closed loop shift quality control system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Closed loop shift quality control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closed loop shift quality control system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2215053