Transmission speed matching control

Details Transmission speed matching control Transmission speed matching control

1991-06-03

1993-11-23

Black, Thomas G.

Boots, shoes, and leggings

74866, 74861, 192 0052, 192 0072, 192 32, G06F 1550, F16D 1304, B60K 4104

Patent

active

052650189

ABSTRACT:
A vehicle transmission system having shift levers mechanically linked to couplers for selection of ranges of gear speed ratios and electro-hydraulic powershift clutches for selection of a gear speed ratio within the selected range is provided with controls for avoiding unexpected speeds or speed changes under certain conditions. If the vehicle is moving at start-up as a result of a stall or accidental reset of the microprocessor, and the shift levers have not been moved since the stall or reset, the microprocessor retrieves from a nonvolatile memory an indication of the last selected powershift gear prior to the reset and uses it for the initial powershift gear selection. When an operator depresses a clutch, shifts a shift lever and then changes his mind and shifts the shift lever back to its original position before releasing the clutch above a threshold point, the microprocessor selects the powershift gear in effect at the time the clutch pedal was depressed.

REFERENCES:
patent: 3876028 (1975-04-01), Asano et al.
patent: 4326433 (1982-04-01), Black et al.
patent: 4425620 (1984-01-01), Batcheller et al.
patent: 4485776 (1984-12-01), Mokuya et al.
patent: 4734861 (1988-03-01), Bertolasi et al.
patent: 4855913 (1989-08-01), Brekkestran et al.
patent: 4877116 (1989-10-01), Horsh
patent: 4899857 (1990-02-01), Tateno et al.
patent: 4913004 (1990-04-01), Panoushek et al.
patent: 4947967 (1990-08-01), Kito et al.
patent: 4964317 (1990-10-01), Murano et al.
patent: 4991454 (1991-02-01), Bulgrien
patent: 5060768 (1991-10-01), Yamashita et al.
patent: 5082097 (1992-01-01), Goeckner et al.
patent: 5083647 (1992-01-01), Bulgrien
patent: 5105675 (1992-04-01), Langford
patent: 5161405 (1992-10-01), Macqueene

Affiliated with

Also associated with

Rating

Transmission speed matching control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transmission speed matching control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission speed matching control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1854599