System for calibration of electrohydraulic pump start current based on engine's output torque signal
US12345252B2 · kind B2 · utility
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1References
19Claims
0Family size
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Key dates
| Filing date | Oct 21, 2022 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Oct 21, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2203/0603
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for calibrating an electrohydraulic pump using a micro-controller that has software that may command the engine to a speed value and to uncommand the electrohydraulic pump such that a baseline engine load is defined. The software may also, thereafter, command the electrohydraulic pump to ramp up until the electrohydraulic pump goes into stroke thereby increasing the engine load to an amount over the baseline engine load. When this occurs, the software may define a start current value for that direction of the electrohydraulic pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.