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Electric Work Vehicle

Abstract: This electric work vehicle comprises: a battery (4) mounted on a machine body; an inverter (14) that converts direct-current power based on the output of the battery (4) into alternating-current power; a motor (M) driven by the alternating-current power converted by the inverter (14); a rotation speed information acquisition unit (41) that acquires rotation speed information indicating the rotation speed of the motor (M); a traveling device (42) driven by the motor (M); an operation tool (43) that changes the requested rotation speed requested for the motor (M); a storage unit (45) that stores an output map defining the relationship between a torque value which can be output by the motor (M) and the rotation speed of the motor (M); and a control unit (44) that drives the inverter (14) on the basis of the rotation speed information, the requested rotation speed, and the output map, and controls current flowing to the motor (M), wherein, in a high rotation region where the rotation speed of the motor (M) is a prescribed rotation speed or higher, the output map is set to be similar to a shape in the high rotation region of a torque curve of the engine.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
16 May 2024
Publication Number
50/2024
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application

Applicants

KUBOTA CORPORATION
2-47, Shikitsuhigashi 1-chome, Naniwa-ku, Osaka-shi, Osaka 5568601

Inventors

1. TAKASE Shunya
c/o KUBOTA CORPORATION, Global Institute of Technology, 1-11, Takumi-cho, Sakai-ku, Sakai-shi, Osaka 5900908
2. YAMANAKA Yukifumi
c/o KUBOTA CORPORATION, Global Institute of Technology, 1-11, Takumi-cho, Sakai-ku, Sakai-shi, Osaka 5900908
3. TAMBA Daiki
c/o KUBOTA CORPORATION, Global Institute of Technology, 1-11, Takumi-cho, Sakai-ku, Sakai-shi, Osaka 5900908
4. MIZOGUCHI Yoshiki
c/o KUBOTA CORPORATION, Global Institute of Technology, 1-11, Takumi-cho, Sakai-ku, Sakai-shi, Osaka 5900908

Specification

Documents

Application Documents

# Name Date
1 202417038480-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [16-05-2024(online)].pdf 2024-05-16
2 202417038480-STATEMENT OF UNDERTAKING (FORM 3) [16-05-2024(online)].pdf 2024-05-16
3 202417038480-REQUEST FOR EXAMINATION (FORM-18) [16-05-2024(online)].pdf 2024-05-16
4 202417038480-PRIORITY DOCUMENTS [16-05-2024(online)].pdf 2024-05-16
5 202417038480-FORM 18 [16-05-2024(online)].pdf 2024-05-16
6 202417038480-FORM 1 [16-05-2024(online)].pdf 2024-05-16
7 202417038480-DRAWINGS [16-05-2024(online)].pdf 2024-05-16
8 202417038480-DECLARATION OF INVENTORSHIP (FORM 5) [16-05-2024(online)].pdf 2024-05-16
9 202417038480-COMPLETE SPECIFICATION [16-05-2024(online)].pdf 2024-05-16
10 202417038480-FORM-26 [20-05-2024(online)].pdf 2024-05-20
11 202417038480-ENDORSEMENT BY INVENTORS [20-05-2024(online)].pdf 2024-05-20
12 202417038480-Proof of Right [30-05-2024(online)].pdf 2024-05-30
13 202417038480-GPA-210524.pdf 2024-06-03
14 202417038480-Correspondence-210524.pdf 2024-06-03
15 202417038480-Others-070624.pdf 2024-06-18
16 202417038480-Correspondence-070624.pdf 2024-06-18
17 202417038480-FORM 3 [23-10-2024(online)].pdf 2024-10-23