Hydromechanical transmission with hydrostatic assembly and hydrostatic assembly control method

Methods and systems for transmission control are provided. In one example, a transmission system operating method includes maintaining a displacement set-point of a variable displacement hydraulic motor in a hydrostatic assembly within a working zone, where at least a portion of a boundary of the wo...

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Bibliographische Detailangaben
Hauptverfasser: Dalla Palma, Lorenzo, Gunsch, Fabio, Gelmini, Mario
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Methods and systems for transmission control are provided. In one example, a transmission system operating method includes maintaining a displacement set-point of a variable displacement hydraulic motor in a hydrostatic assembly within a working zone, where at least a portion of a boundary of the working zone is determined based on a torque constraint of the hydrostatic assembly. The transmission system includes the hydrostatic assembly that includes the hydraulic motor that is hydraulically coupled in parallel with a variable displacement hydraulic pump and a gearbox mechanically coupled to the hydrostatic assembly and including one or more clutches.