Patent ID: 9481976
Filing Date: 2016-11-01
CPC Classification: E02F,G05B

Claim Text:
1. A work vehicle, comprising: a boom; an arm; a bucket; an arm control member; a speed limit determination portion determining a speed limit for limiting a speed of a cutting edge of said bucket in accordance with a distance between the cutting edge of said bucket and design topography when a distance between the cutting edge of said bucket and the design topography is equal to or smaller than a prescribed distance; and a target speed determination portion determining a target speed of said boom based on said speed limit determined by said speed limit determination portion, said speed limit determination portion deciding on a speed limit calculated based on correlation between said speed limit and a distance between the design topography and the cutting edge of said bucket when an amount of operation of said arm control member is equal to or greater than a prescribed amount, and deciding on a speed limit lower than the speed limit calculated based on said correlation when the amount of operation of said arm control member is smaller than the prescribed amount.