Kubota Corporation

Tsunehiro Il

Sumio Yagyu

Kazuto Okazaki

Yuji Hirase

Shunya Takase

Daiki Tamba

An electric working machine includes an electric device, electric circuitry, battery packs to be connected sequentially to the electric device via the electric circuitry to parallelly connected, the battery packs including internal relay(s) to open/close an internal circuit, and a controller. The electric circuitry includes external relays corresponding to respective battery packs. The controller is configured or programmed to perform a first latter process wherein, while a first battery pack to be connected first to the electric device is in electrical connection with the electric device, the controller brings the internal relay(s) of a second battery pack to be connected second or later to the electric device into a closed state, and a second latter process wherein the controller brings, into the closed state, the external relay corresponding to the second battery pack where the internal relay(s) is in the closed state.

Electric working machine and method of activating electric working machine

A work vehicle includes: a travel device supporting a body; a battery; a motor configured to supply motive power to the travel device; an inverter configured to enable the motor to operate; a cabin supported by the body and housing a driving section that includes a driver seat; and an air conditioner configured to condition air inside the cabin. The inverter is inside the cabin.

Work vehicle

A work vehicle includes: a front wheel; a rear travel device; a travel body supported by the front wheel and the rear travel device; a driving section provided in the travel body and having an occupant floor section; a travel power transmission device configured to transmit power to the rear travel device; at least one electric motor coupled to the travel power transmission device; a first inverter connected to the at least one electric motor; and a second inverter connected to the at least one electric motor.

Growing community of inventors

Osaka, Japan

Tsunehiro Il