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US 11,993,917 B2Granted
Working vehicle
AssigneeTakeuchi Mfg. Co., Ltd.
InventorShumpei Okutani
Life of this patent
Estimating the term…
Abstract
A working vehicle includes a drive unit having inverters, AC motors, hydraulic pumps, a battery, a controller, a battery management system, a switch, an electromagnetic contactor, and a display unit, and the switch is signal-connected to the controller, a stop signal is transmitted to the controller when the switch is turned off, and the controller performs stop control in which the AC motors are operated during a term to thereby set a residual voltage to be lower than a predetermined set voltage.
Claims6
A working vehicle comprising:
- a drive unit including inverters, AC motors, and hydraulic pumps;
- a battery feeding direct current to the inverters;
- a controller signal-connected to the inverters;
- a battery management system signal-connected to the controller;
- a switch;
- an electromagnetic contactor operated by a command from the battery management system and connecting the battery to the inverters;
- and
- a display unit signal-connected to the controller,
- wherein the switch is signal-connected to the controller so as to transmit a stop signal,
- the electromagnetic contactor is controlled to be off by the battery management system and the stop signal is transmitted to the controller when the switch is turned off, and
- the controller having received the stop signal performs stop control in which the AC motors are operated during a term from a point when the switch is turned off until reaching a prescribed time to thereby set a residual voltage in the inverters at the point when reaching the prescribed time to be lower than a predetermined set voltage which has been previously set.
8 more elements
Dependencies are inferred from the claim text.