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This is a record of a document published elsewhere, first published by the European Patent Office, as EP-4717659-A1, on 1 April 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000001265

Apparatus and method for determining a target rotational speed for a rotary drive driving a displacement pump of a hydraulic system of a lifting equipment

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Classification
Lifting, Positioning & Manipulation › Hoists and Cranes
Inventors
BESSING FABIAN, KALTENBRUNNER DANIEL
Assignee
PALFINGER AG
Original source
EP-4717659-A1, the European Patent Office, 1 April 2026
Document SHA-256
145d446598ef158086673d45de8a7535110a7e16d024040c6031c8840366e249

Abstract

Provided is an apparatus (100) for determining a target rotational speed for a rotary drive (130) driving a displacement pump (125) of a hydraulic system of a lifting equipment (120). The apparatus (100) includes processing circuitry (110) configured to receive input data (101) indicating at least one pressure measurement in the hydraulic system. The processing circuitry (110) is further configured to determine the target rotational speed for the rotary drive (130) based on a first value and a second value. The first value represents a pressure difference between a load pressure in the hydraulic system and a pump pressure of the displacement pump. The first value is based on the input data (101). The second value is a target value for the pressure difference. In addition, the processing circuitry (110) is configured to output control data (105) indicating the determined target rotational speed.

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Citation

OpenTechnical Publication OT-2026-000001265, “Apparatus and method for determining a target rotational speed for a rotary drive driving a displacement pump of a hydraulic system of a lifting equipment,” published September 15, 2026 at 19:04:32 UTC, https://opentechnical.org/p/OT-2026-000001265.

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