Patent ID: 9080317
Filing Date: 2015-07-14
Classification: E02F

Abstract:
1. An excavation control system comprising: a working unit formed by a plurality of driven members including a bucket, the working unit being rotatably supported by a vehicle main body; a plurality of hydraulic cylinders configured to drive the plurality of driven members; a prospective speed obtaining part configured to obtain a first prospective speed and a second prospective speed, the first prospective speed depending on a first distance between the bucket and a first designed surface indicating a target shape for an excavation object, the second prospective speed depending on a second distance between the bucket and a second designed surface indicating the target shape for the excavation object, the second designed surface being different from the first designed surface, the first designed surface and the second designed surface being disposed adjacent to each other; a speed limit selecting part configured to select either of the first prospective speed or the second prospective speed as a speed limit based on a relative relation between the first designed surface and the bucket and a relative relation between the second designed surface and the bucket; and a hydraulic cylinder controlling part configured to limit a relative speed of the bucket to the speed limit, the relative speed being relative to either one designed surface of the first and second designed surfaces which is a target of the speed limit.