Optimizing Energy Efficiency in Closed-Circuit Hydrostatic Transmissions: Advancing Charge Pump System Control
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| Publicado no: | Hidraulica no. 2 (2025), p. 33-40 |
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| Autor principal: | |
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| Acesso em linha: | Citation/Abstract Full Text Full Text - PDF |
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| 100 | 1 | |a Chiriță, Alexandru-Polifron |u National Institute of Research & Development for Optoelectronics /INOE 2000, Subsidiary Hydraulics and Pneumatics Research Institute /IHP, Romania | |
| 245 | 1 | |a Optimizing Energy Efficiency in Closed-Circuit Hydrostatic Transmissions: Advancing Charge Pump System Control | |
| 260 | |b Hidraulica |c 2025 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a While closed-circuit hydrostatic transmissions (HTs) achieve remarkable efficiencies (≤98%) in their main pump-motor units, auxiliary charge pump systems remain a significant source of avoidable energy loss. This review synthesizes current research to demonstrate that conventional fixed-operation charge pumps-operating continuously at ~25 bar pressure and 10-20% of main pump flow-waste substantial energy due to misalignment with actual system demands. Charge pumps perform critical functions: compensating for internal leakage, providing filtration/cooling, supplying servo-control pressure, preventing cavitation, and ensuring lubrication. However, their static operation causes continuous throttling losses and heat generation. Recent advances in variable-displacement pumps and adaptive control strategies (e.g., pressure compensation, servo-proportional control) enable dynamic adjustment of charge pressure and flow, unlocking 20-45% energy savings without compromising functionality. We identify charge system optimization as the next frontier for HT sustainability and prioritize research directions: robust adaptive algorithms, digital hydraulic integration, and standardized validation frameworks. | |
| 653 | |a Cavitation | ||
| 653 | |a Misalignment | ||
| 653 | |a Thermal cycling | ||
| 653 | |a Tribology | ||
| 653 | |a Pumps | ||
| 653 | |a Energy losses | ||
| 653 | |a Energy efficiency | ||
| 653 | |a Optimization | ||
| 653 | |a Adaptive control | ||
| 653 | |a Charge pumps | ||
| 653 | |a Energy conservation | ||
| 653 | |a Energy consumption | ||
| 653 | |a Fuzzy logic | ||
| 653 | |a Pressure | ||
| 653 | |a Adaptive algorithms | ||
| 653 | |a Energy loss | ||
| 653 | |a Control algorithms | ||
| 653 | |a Cooling | ||
| 653 | |a Motor units | ||
| 653 | |a Heat exchangers | ||
| 653 | |a Servocontrol | ||
| 653 | |a Proportional control | ||
| 653 | |a Sustainability | ||
| 653 | |a Heat generation | ||
| 653 | |a Cost control | ||
| 653 | |a Hydraulics | ||
| 653 | |a Economic | ||
| 700 | 1 | |a Rădoi, Radu-Iulian |u National Institute of Research & Development for Optoelectronics /INOE 2000, Subsidiary Hydraulics and Pneumatics Research Institute /IHP, Romania | |
| 700 | 1 | |a Tudor-Rotilă, Bogdan-Alexandru |u National Institute of Research & Development for Optoelectronics /INOE 2000, Subsidiary Hydraulics and Pneumatics Research Institute /IHP, Romania | |
| 700 | 1 | |a Șefu, Ștefan-Mihai |u National Institute of Research & Development for Optoelectronics /INOE 2000, Subsidiary Hydraulics and Pneumatics Research Institute /IHP, Romania | |
| 773 | 0 | |t Hidraulica |g no. 2 (2025), p. 33-40 | |
| 786 | 0 | |d ProQuest |t Advanced Technologies & Aerospace Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3228850437/abstract/embedded/J7RWLIQ9I3C9JK51?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text |u https://www.proquest.com/docview/3228850437/fulltext/embedded/J7RWLIQ9I3C9JK51?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3228850437/fulltextPDF/embedded/J7RWLIQ9I3C9JK51?source=fedsrch |