Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Indication or control of braking – acceleration – or deceleration
Reexamination Certificate
2011-06-14
2011-06-14
Hellner, Mark (Department: 3663)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Indication or control of braking, acceleration, or deceleration
C701S083000, C303S167000
Reexamination Certificate
active
07962270
ABSTRACT:
A method for controlling an automotive hydraulic pump, wherein the hydraulic pump is activated to increase the pressure in a hydraulic accumulator associated therewith once the pressure falls below a predetermined lower pressure threshold, and the hydraulic pump is switched off once the pressure exceeds a predetermined upper pressure threshold value (P_O). The solution is to reduce fuel consumption of the vehicle, wherein the hydraulic pump is activated during different operating phases of the vehicle at different lower pressure values (P_U1, P_U2) in the event of a hydraulic pressure drop in the hydraulic accumulator of the hydraulic pump.
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Gansohr Marcus
Jäger Thomas
Schneider Florian
Algahaim Helal A
Davis & Bujold P.L.L.C.
Hellner Mark
ZF Friedrichshafen AG
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