Electricity: motive power systems – Positional servo systems – Pulse-width modulated power input to motor
Patent
1995-10-10
1998-03-17
Martin, David S.
Electricity: motive power systems
Positional servo systems
Pulse-width modulated power input to motor
388811, 36442408, G05B 1120
Patent
active
057291101
ABSTRACT:
A control strategy for an electronically controlled X-Y shifting mechanism for a vehicle transmission which takes advantage of the extra supply voltage available on European vehicles while maintaining commonality with U.S. shifter systems. A variable voltage pulse width modulated duty cycle percentage is maintained at or below a 50% nominal value to make the 24V source appear as a 12V source, allowing commonality in X-Y shifting mechanism hardware and basic control algorithms for both 12V and 24V vehicle systems. However, this percentage is increased to greater than the nominal 50% limit when the available supply voltage drops below 24V, as well as between an initial movement of the shift finger and engagement of the finger with a shift block, in order to provide faster motor acceleration to obtain top speeds quicker and during low force but top speed movement conditions.
REFERENCES:
patent: Re34260 (1993-05-01), Markyvech et al.
patent: 4873881 (1989-10-01), Edelen et al.
patent: 4928544 (1990-05-01), Markyvech et al.
patent: 5281902 (1994-01-01), Edelen et al.
patent: 5305240 (1994-04-01), Davis et al.
patent: 5315218 (1994-05-01), Fortune et al.
patent: 5325029 (1994-06-01), Janecke et al.
patent: 5481170 (1996-01-01), Edelsen et al.
Janecke Daniel P.
Kominek Leo A.
Nowicke John M.
Steeby Jon A.
Vincent Bruce A.
Eaton Corporation
Gordon Howard D.
Martin David S.
Uthoff Jr. Loren H.
LandOfFree
Method for controlling an electronic X-Y shifting mechanism for does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for controlling an electronic X-Y shifting mechanism for , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for controlling an electronic X-Y shifting mechanism for will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-961048