Pumps – Condition responsive control of drive transmission or pump... – Adjustable cam or linkage
Patent
1997-12-22
1999-08-31
Freay, Charles G.
Pumps
Condition responsive control of drive transmission or pump...
Adjustable cam or linkage
60430, 60449, F04B 126, F16D 3102
Patent
active
059444924
ABSTRACT:
A hydraulic pump control system is shown that can control the absorbing torque of a hydraulic pump with respect to the engine power for driving the hydraulic pump in a well-balanced manner, and reduce a deviation of an actual revolution number from a target revolution number of the engine. A torque of hydraulic pumps during operation is estimated from a pump pressure and first and second line pressures. Based on the estimated torque, an output torque of the hydraulic pumps is controlled so that an error between a target revolution number and an actual revolution number of the engine becomes null.
REFERENCES:
patent: 4809504 (1989-03-01), Izumi et al.
patent: 5266756 (1993-11-01), Hatano
patent: 5527156 (1996-06-01), Song
Konishi Hideo
Samejima Makoto
Freay Charles G.
Ratcliffe Paul L.
Shin Caterpillar Mitsubishi Ltd.
LandOfFree
Hydraulic pump 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 Hydraulic pump control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic pump control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2424503