Patent ID: 9371626
Filing Date: 2016-06-21
CPC Classification: E02F

Claim Text:
1. A work vehicle, comprising: a boom: an arm; a bucket; an arm control member; a speed limit calculation portion calculating a speed limit for limiting a speed of a cutting edge of said bucket based on correlation with a distance between the cutting edge of said bucket and design topography; a speed determination portion determining whether a speed of raising said boom has been lowered when an amount of operation of said arm control member is smaller than a prescribed amount; an adjustment portion delaying speed change to said speed limit when said speed determination portion determines that the speed of raising said boom has been lowered as compared with when it is not determined that the speed of raising said boom has been lowered; and a boom speed determination portion determining a target speed of said boom based on a speed limit after delay by said adjustment portion when it is determined that the speed of raising said boom has been lowered and determining a target speed of said boom based on the speed limit calculated by said speed limit calculation portion when it is not determined that the speed of raising said boom has been lowered.