Automatic transmission digital control system

Details Automatic transmission digital control system Automatic transmission digital control system

1977-12-20

1980-04-22

Husar, C. J.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

B60K 4118

Patent

active

041988825

ABSTRACT:
Transmission gear change characteristic curves, relating speed and loading, are stored in a memory. The digitally stored data are processed in a data processing unit connected to a synchronization and logic unit which controls a gear change control stage, actually controlling the gear shifting. The data processing unit compares output speed of the transmission with the characteristic curves stored in the memory relating speed and loading, and optimum transmission gear range, while additionally considering load signals derived from the engine to which the transmission is connected. Preferably, the entire unit is synchronized by output pulses derived from the output speed of the transmission, with prohibited states and gear changes being provided for to prevent shifting if the actual speed exceeds or recedes below critical levels.

REFERENCES:
patent: 3897766 (1975-08-01), Pratt et al.
patent: 3938409 (1976-02-01), Uozumi
patent: 4073203 (1978-02-01), Wurst et al.
patent: 4099495 (1978-06-01), Kiencke et al.

Affiliated with

Also associated with

Rating

Automatic transmission digital control system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1470104