Machine element or mechanism – Gearing – Interchangeably locked
Patent
1998-05-27
2000-08-29
Estremsky, Sherry L.
Machine element or mechanism
Gearing
Interchangeably locked
477908, F16H 5912, F16H 5940
Patent
active
06109126&
ABSTRACT:
A method and apparatus for operating a compound transmission automatically prevents a manually selected shift of the auxiliary section from occurring unless the vehicle speed is within a predetermined maximum limit or range. A shift controller initially determines if a request for a shift operation in the auxiliary section has been made by the operator of the vehicle. This determination may be inferred from a change in the position of a manually operable switch. If a shift request has been made, the shift controller determines if the main section of the transmission is in the neutral gear ratio. If the main section of the transmission is not in the neutral gear ratio, then the shift controller takes no further action. When the shift controller determines that the main section of the transmission is in the neutral gear ratio, then it determines if the speed of the vehicle is within a predetermined limit or range to enable shifting of the auxiliary section in a safe and efficient manner. If the vehicle speed is not within the predetermined limit or range, then the shift controller takes no further action. If, however, the vehicle speed is within the predetermined limit or range, the shift controller activates a shift actuator to effect the desired shift within the auxiliary section of the transmission.
REFERENCES:
patent: 3939722 (1976-02-01), Stromberg
patent: 4570765 (1986-02-01), Makita
patent: 4722248 (1988-02-01), Braun
patent: 4850236 (1989-07-01), Braun
patent: 5089965 (1992-02-01), Braun
patent: 5105675 (1992-04-01), Langford et al.
patent: 5172603 (1992-12-01), MacInnis
patent: 5224392 (1993-07-01), Hutchison et al.
patent: 5263379 (1993-11-01), Newbigging et al.
patent: 5329826 (1994-07-01), Grave, Jr. et al.
patent: 5413542 (1995-05-01), Jarvis
patent: 5487004 (1996-01-01), Amsallen
patent: 5569115 (1996-10-01), Desautels et al.
patent: 5571059 (1996-11-01), Desautels et al.
patent: 5573477 (1996-11-01), Desautels et al.
patent: 5582558 (1996-12-01), Palmeri et al.
patent: 5592851 (1997-01-01), Bates et al.
patent: 5673592 (1997-10-01), Huggins et al.
Cochran Stephen C.
Holman James L.
Estremsky Sherry L.
Transmission Technologies Corporation
LandOfFree
Shift control system for an auxiliary section of a compound vehi 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 system for an auxiliary section of a compound vehi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shift control system for an auxiliary section of a compound vehi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1237233