Shift control method for an electric-power-assist transmission

Details Shift control method for an electric-power-assist transmission Shift control method for an electric-power-assist transmission

1998-09-11

2000-08-01

Marmor, Charles A.

Machine element or mechanism

Gearing

Interchangeably locked

743375, F16H 5900

Patent

active

060950048

ABSTRACT:
An electric-power-assist transmission and a shift control method which allow good operability to be obtained. In the shift control method, a sleeve is engaged with a target gear. A shift spindle is rotated by a driving motor in order to move the sleeve along a main shaft by using a shift fork and a shift drum interlocked with the shift spindle. When the sleeve is moved to a position in contact with the target gear, PWM control is executed at a duty ratio of 70% during the first 20 ms. Thereafter, the PWM control is executed by changing the duty ratio to 50% and restoring the duty ratio back to 70% repeatedly at intervals of 10 ms.

REFERENCES:
patent: 2755679 (1956-07-01), Nallinger
patent: 3429194 (1969-02-01), Espenschied et al.
patent: 3631945 (1972-01-01), Ollearo
patent: 4425814 (1984-01-01), Dick
patent: 4428248 (1984-01-01), Broucksou et al.
patent: 4449416 (1984-05-01), Huitema
patent: 4584511 (1986-04-01), Rudich et al.
patent: 4664217 (1987-05-01), Welch et al.
patent: 5078249 (1992-01-01), Botterill
patent: 5224393 (1993-07-01), Ashikawa et al.
patent: 5251503 (1993-10-01), Morris et al.
patent: 5395293 (1995-03-01), Matsuura et al.
patent: 5590563 (1997-01-01), Kuwahata et al.

Affiliated with

Also associated with

Rating

Shift control method for an electric-power-assist transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shift control method for an electric-power-assist transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shift control method for an electric-power-assist transmission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-653352