A hybrid system (25) includes an engine (7), a generator (9) to be driven by the engine (7), an electric actuator (26) to be driven by electricity generated by the generator (9), a transmission mechanism (27) to transmit power from the engine (7), a hydraulic pump (17) to receive power from the engine (7) through the transmission mechanism (27) to deliver hydraulic fluid, and a hydraulic actuator (28) to be driven by hydraulic fluid delivered by the hydraulic pump (17). The transmission mechanism (27) includes a first transmission path (39) to transmit power from the engine (7) to the hydraulic pump (17) when a rotational speed of the engine (7) is a first rotational speed (R1), and a second transmission path (40) to transmit power from the engine (7) to the hydraulic pump (17) at a speed change ratio at which rotational speed is increased to a greater degree than the first transmission path (39) when the rotational speed of the engine (7) is a second rotational speed (R2) lower than the first rotational speed (R1).
HYBRID SYSTEM AND WORKING MACHINE INCLUDING HYBRID SYSTEM
HYBRIDSYSTEM UND ARBEITSMASCHINE MIT HYBRIDSYSTEM
SYSTÈME HYBRIDE ET MACHINE DE TRAVAIL COMPRENANT UN SYSTÈME HYBRIDE
2024-06-05
Patent
Electronic Resource
English
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
Hybrid power system for working machine, and working machine
European Patent Office | 2021
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