Work vehicle

Patent metadata

Field	Value
Publication number	US-2016208665-A1
Application number	US-201414914317-A
Country	US
Kind code	A1
Filing date	Aug 29, 2014
Priority date	Aug 29, 2013
Publication date	Jul 21, 2016
Grant date	—

Abstract

Regarding a work vehicle that includes an engine mounted on a travelling machine body and an exhaust gas purification device arranged in an exhaust gas path of the engine, it is an object to prevent the regeneration control of the exhaust gas purification device from being executed against operators' will. The work vehicle of the present invention includes a regeneration switch 329 for executing the regeneration control of an exhaust gas purification device 50 , a meter panel 246 for displaying the situation of driving operations of a travelling machine body 2 , and a work device 15 . Then, when it is assumed that a predetermined amount or more of particulate matter in the exhaust gas purification device 50 is accumulated, the meter panel 246 notifies a regeneration control request warning and displays characters that urge stoppages of work of the work device 15 and travelling of the travelling machine body 2.

First claim

1 . A work vehicle configured to include an engine mounted on a travelling machine body; a driving operation display device for displaying a driving operation situation of the travelling machine body; an exhaust gas purification device arranged in an exhaust gas path of the engine; and a work device mounted on the travelling machine body, and configured to be capable of executing regeneration control, in which particulate matter in the exhaust gas purification device is removed, based on a manual operation of a regeneration switch, and
wherein when it is assumed that a predetermined amount or more of particulate matter in the exhaust gas purification device is accumulated, the driving operation display device notifies a regeneration control request warning and displays characters that urge stoppages of work of the work device and travelling of the travelling machine body.

2 . The work vehicle according to claim 1 ,
wherein when regeneration transfer conditions for starting the regeneration control are not satisfied, incomplete conditions out of the regeneration transfer conditions are displayed with characters on the driving operation display device.

3 . The work vehicle according to claim 2 ,
wherein when the regeneration transfer conditions are satisfied, the driving operation display device gives display urging an operation of the regeneration switch.

4 . The work vehicle according to claim 1 , further comprising an engine controller configured to control drive of the engine; and a driving operation display controller configured to control a display operation of the driving operation display device, and
wherein the controllers are electrically connected to each other, and wherein only when the driving operation display controller verifies reception of the manual operation by means of the regeneration switch after the regeneration control request warning is displayed by the driving operation display device, the driving operation display controller gives the engine controller a command for executing the regeneration control of the exhaust gas purification device.

Assignees

• Yanmar Co Ltd

Inventors

• KOIKE Yuusuke
• Iwata Akimichi
• Yokoyama Kazuhisa

Classifications

• F01N3/023 Primary

  using means for regenerating the filters, e.g. by burning trapped particles · CPC title

• F02D2041/228

  Warning displays · CPC title

• F02D2200/604

  Engine control mode selected by driver, e.g. to manually start particle filter regeneration or to select driving style · CPC title

• F01N3/035

  with catalytic reactors · CPC title

• B62D49/00

  Tractors (of walk type B62D51/04; endless- track features B62D55/00 {; transport specially adapted for underground galleries E21F13/02}) · CPC title