Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
297 words
A system for controlling distribution of hydraulic power among motive (37) and implement (47) applications on an engine-driven vehicle comprising hydraulic valve means (38, 42, 48, 50) associated with each of said motive (37) and implement (47) applications for controlling actuation at the associated said application, the said hydraulic valve means (48, 50) associated with at least said implement applications (47) including means (49, 51) responsive to an associated electrical input signal for controlling actuation at the associated said implement application (47), characterized by operator control means (10, 12, 14) for separately controlling each said valve means (38, 42, 48, 50) including means for sensing operated demand at each said control means and providing an associated electrical siganl as a function of said demand, first (18) and second (20) electrically controlled variable output hydraulic pumps adapted to be drivably coupled to the vehicle engine (16), each said pump (18, 20) including means (34, 36) responsive to an associated electrical signal for controlling hydraulic output at the associated pump (18, 20), first (37) and second (47) hydraulic fluid flow means respectively connecting said first pump (18) to the said hydraulic valve means (38, 42) associated with said motive applications and said second pump (20) to the said hydraulic valve means (48, 50) associated with said implement applications, means (60, 62) responsive to an electrical control signal for selectively interconnecting said first and second fluid flow means (37, 47) , and electronic control means (90, 92, 94) responsive to said electrical demand signals from said operator control means (10, 12, 14) for individually and selectively controlling said first (18) and second (20) pumps, the said hydraulic valve means (48, 50) associated with said implement applications and said interconnecting means (60, 62) as a function of total hydraulic power demand.
Claim 2
Independent Claim
297 words
A system for controlling distribution of hydraulic power among motive (37) and implement (47) applications on an engine-driven vehicle comprising hydraulic valve means (38, 42, 48, 50) associated with each of said motive (37) and implement (47) applications for controlling actuation at the associated said application, the said hydraulic valve means (48, 50) associated with at least said implement applications (47) including means (49, 51) responsive to an associated electrical input signal for controlling actuation at the associated said implement application (47), characterized by operator control means (10, 12, 14) for separately controlling each said valve means (38, 42, 48, 50) including means for sensing operated demand at each said control means and providing an associated electrical siganl as a function of said demand, first (18) and second (20) electrically controlled variable output hydraulic pumps adapted to be drivably coupled to the vehicle engine (16), each said pump (18, 20) including means (34, 36) responsive to an associated electrical signal for controlling hydraulic output at the associated pump (18, 20), first (37) and second (47) hydraulic fluid flow means respectively connecting said first pump (18) to the said hydraulic valve means (38, 42) associated with said motive applications and said second pump (20) to the said hydraulic valve means (48, 50) associated with said implement applications, means (60, 62) responsive to an electrical control signal for selectively interconnecting said first and second fluid flow means (37, 47) , and electronic control means (90, 92, 94) responsive to said electrical demand signals from said operator control means (10, 12, 14) for individually and selectively controlling said first (18) and second (20) pumps, the said hydraulic valve means (48, 50) associated with said implement applications and said interconnecting means (60, 62) as a function of total hydraulic power demand.
Claim 3
Dependent Claim
117 words
The system set forth in claim 1 further comprising means (76, 78, 80,82) coupled to the said hydraulic valve means (48, 50) associated with said implement applications for providing electrical signals as functions of hydraulic pressure at said implement applications, and means (10, 56, 58) for sensing operation at said implement applications and providing electrical signals as functions of motion at said work application, and wherein said electronic control means (90, 92, 94) includes means (90) responsive to said hydraulic valve- coupled means (76, 78, 80,82) and said operation-sensing means (10, 56, 58) for modulating operation of said pumps (18,20) , said valve means (48, 50) associated with said work applications and said interconnection means (60, 62).