Patent ID: 9302582
Filing Date: 2016-04-05
CPC Classification: B60K

Claim Text:
1. A display system for a work vehicle having at least one kind of Power Take Off (PTO) mode, comprising: a rotation speed display section for selectively displaying an engine rotation speed or at least one kind of PTO rotation speed in a same display area; a display selection switch for outputting an engine display selection command selecting the engine rotation speed to be displayed, and also outputting a PTO display selection command selecting the PTO rotation speed to be displayed; a discrimination display section for displaying a group of discriminating objects each having an icon, the icon having a turn-ON state and a turn-OFF state; and a display control section for controlling contents displayed by the rotation speed display section, and also controlling the turn-ON state and the turn-OFF state of the icon of the discrimination display section; wherein the group of discriminating objects includes an engine discrimination object for identifying the engine rotation speed and at least one kind of PTO discrimination object for identifying the PTO rotation speed; wherein in response to the engine display selection command, the display control section provides the rotation speed display section with an engine rotation speed display signal generated based on a detection signal from an engine rotational speed sensor that detects the engine rotational speed, and the icon of the engine discrimination object to be turned ON and the icon of each of any other discrimination objects than the engine discrimination object to be turned OFF; and wherein in response to the PTO display selection command, the display control section provides the rotation speed display section with a PTO rotation speed display signal generated based on a detection signal from the engine rotational speed sensor, and causes the discrimination display section to turn the icon of the PTO discrimination object associated with the PTO display selection command ON and turn the icon of each of any other discrimination objects other than the turned-ON discrimination object OFF; wherein when the PTO display selection command is outputted and power transmission to the PTO shaft is blocked, the display control section provides the rotation speed display section with a display signal indicative of a zero rotational speed instead of the PTO rotation speed display signal; and