Method for controlling switching over of speed stages of transmi

Details Method for controlling switching over of speed stages of transmi Method for controlling switching over of speed stages of transmi

1988-07-06

1990-10-30

Gruber, Felix D.

Boots, shoes, and leggings

74866, 74869, B60K 4118, B60K 4104, F16H 528

Patent

active

049673556

ABSTRACT:
A method for controlling switching over of speed stages of a transmission for a vehicle having two transmission units each independently operable to provide a plurality of gear ratios and connected in series to provide a plurality of overall gear ratios by the addition or balance of the gear of the two transmission units, having sensors for detecting operational conditions of the vehicle such as engine load and vehicle speed, sensors for detecting rotational speed of those intermediate rotational members in the respective transmission units which start to rotate or to stop by switching over of the speed stages, and a computing and controlling means which computes based upon the vehicle operating conditions a due period in which the switching over is to be completed and controls servo actuators for switching over the gear ratios of the transmission units so that the switching over operations for the two transmission units are completed with the end of the computed period.

REFERENCES:
patent: 4622866 (1986-11-01), Ito et al.
patent: 4640393 (1987-02-01), Nishimura et al.
patent: 4688449 (1987-08-01), Harada et al.
patent: 4688450 (1987-08-01), Hayashi et al.
patent: 4690017 (1987-09-01), Taniguchi et al.
patent: 4709596 (1987-12-01), Boda et al.
patent: 4727772 (1988-03-01), Sumiya et al.
patent: 4730519 (1988-03-01), Nakamura et al.

Affiliated with

Also associated with

Rating

Method for controlling switching over of speed stages of transmi 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 switching over of speed stages of transmi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for controlling switching over of speed stages of transmi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-279434