A HYBRID VEHICULAR WORK MACHINE

• Main Author: OLSSON, Tommy
• Format: Patent
• Language: English; French; German
• Published: 10.11.2021
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; FIXED CONSTRUCTIONS; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

The present disclosure relates to a vehicular work machine (10) comprising a first electric motor arrangement (31) comprising one or more electric motors (21, 21′), and a second electric motor arrangement (32) comprising one or more electric motors (22, 22′) separate from said one or more electric motors (21, 21′) of the first electric motor arrangement (31). The vehicular work machine (10) further comprises a power connection (8) adapted to be connected to an external electric power source (17), an energy storage arrangement (23) and a hydraulic pump assembly (24) that is adapted to power hydraulic devices (5, 18, 19, 20) comprised in the vehicular work machine (10). At least one electric motor (21, 21′; 22, 22′) in each electric motor arrangement (31, 32) is adapted to propel the hydraulic pump assembly (24). Said one or more electric motors (21, 21′) in the first electric motor arrangement (31) are arranged to be electrically powered from the external power supply (17), and said one or more electric motors (22, 22) in the second electric motor arrangement (32) are arranged to be electrically powered from the energy storage arrangement (23).