IP Library › Granted Patent US 11,668,075
Granted Patent B2
US 11,668,075 · App. 17/413,659 · Granted Jun 6, 2023

Work vehicle

Inventors: Makoto Nomura (Tokyo, JP); Takanori Yamane (Tokyo, JP); Kaoru Watanabe (Tokyo, JP)
Assignee: Komatsu Ltd.
E02F9/26B60K35/00B60L1/00B60L3/12G09G3/3406B60K2370/349B60K2370/52B60L53/60B60L2270/30B60L2270/34B60L2270/36G09G2320/0626G09G2380/10
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Quick Facts
Patent No.
US 11,668,075
App. No.
17/413,659
Granted
Jun 6, 2023
Kind
B2
Abstract

A work vehicle 1 includes a display unit 51 of a rechargeable work vehicle 1 , and a display unit controller 53 configured to reduce a brightness of the display unit 51 during charge of the work vehicle 1 , compared with that during operation of the work vehicle 1.

Claims (25)

1. A rechargeable work vehicle including working equipment, the work vehicle comprising:

a display unit configured to display charge information during charge of the work vehicle and

a display control unit configured to control a brightness of the display unit to be adjusted, wherein

the display control unit reduces the brightness of the display unit during charge of the work vehicle, compared with that during operation of the work vehicle, and

when a key switch is turned on during charge of the work vehicle,

the display control unit increases the brightness of the display unit that has a brightness reduced as compared with that during the operation of the work vehicle,

wherein the key switch is configured to be further turned to a position different from an on-position so an electric motor of the rechargeable work vehicle can be started.

2. The work vehicle according to claim 1 , wherein

when an elapsed time from start of charging the work vehicle is equal to or less than a predetermined time, the display control unit increases the brightness of the display unit that has a brightness reduced as compared with that during the operation of the work vehicle.

3. The work vehicle according to claim 1 , wherein

when the charge of the work vehicle is completed, the display control unit increases the brightness of the display unit that has a brightness reduced as compared with that during the operation of the work vehicle.

4. The work vehicle according to claim 1 , wherein

when an abnormality occurs in charging of the work vehicle, the display control unit increases the brightness of the display unit that has a brightness reduced as compared with that during the operation of the work vehicle.

5. The work vehicle according to claim 1 , further comprising

an operation unit, wherein

when an operation is performed on the operation unit to reduce the brightness of the display unit, the display control unit reduces the brightness of the display unit.

6. The work vehicle according to claim 1 , wherein

when an elapsed time from an operation on an operation unit is less than or equal to a predetermined time, the display control unit increases the brightness of the display unit that has a brightness reduced as compared with that during the operation of the work vehicle.

7. The work vehicle according to claim 1 , wherein

the display unit displays operation information during the operation of the work vehicle, and

the operation information displayed on the display unit includes a service meter that indicates an accumulated operation time, operation information about a battery, and a hydraulic oil temperature.

8. The work vehicle according to claim 1 , wherein

a time during charge of the work vehicle also includes a time in which a charging connector is connected to a charging inlet.

9. The work vehicle according to claim 1 , wherein

the key switch is configured to be turned on so power can be supplied from an accessory battery of the rechargeable work vehicle and the key switch is configured to be further turned to a position different from an on-position so an electric motor of the rechargeable work vehicle can be started.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 14, 2021
From: NOMURA, MAKOTO; YAMANE, TAKANORI; WATANABE, KAORU
To: KOMATSU LTD.
Reel/Frame 056530/0964 →
Priority Claims (1)
JP JP2019-036971 · Feb 28, 2019 · national
Continuity (1)
Related Publication 20220056672A1 · Feb 24, 2022