Patent · US Active

Real-time-capable trajectory planning for pivoting-plate-type axial piston pumps with systematic consideration of system limitations

US12146484B2 · kind B2 · utility

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18Claims

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Assignee

Robert Bosch GmbH · DE

Inventors

Steffen Mutschler · Neu-Ulm, DE
Adrian Trachte · Stuttgart, DE
Carolina Passenberg · Rutesheim, DE
Steffen Joos · Murr, DE

Key dates

Filing date	Jul 2, 2020
Grant date	Nov 19, 2024
Priority date	—
Expiry date	Jun 11, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG05B2219/25312
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method is for producing, for a hydraulic machine having an actuator, a setpoint-value trajectory satisfying predefined limitations in order to influence an output variable of the hydraulic machine. A trajectory of unlimited setpoint values is fed to a trajectory planning function, which produces the setpoint-value trajectory from the trajectory of unlimited setpoint values. In the trajectory planning function, the trajectory of unlimited setpoint values is differentiated at least twice in order to obtain a trajectory of unlimited setpoint values that is differentiated n times. In the trajectory planning function, at least one limitation is applied to the differentiated trajectory of unlimited setpoint values in order to obtain a differentiated trajectory of limited setpoint values. The differentiated trajectory of limited setpoint values is fed to a filter integrator chain in order to obtain the setpoint-value trajectory.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.