WORK-MACHINE CONTROL SYSTEM, WORK MACHINE, HYDRAULIC-SHOVEL CONTROL SYSTEM, AND WORK-MACHINE CONTROL METHOD

摘要

A work-machine control system that controls a work machine provided with a work device that has a boom, an arm, and a bucket. Said work-machine control system includes the following: a position detection apparatus that detects the position of the work machine, yielding position information; a generation unit that determines the position of the work device on the basis of the position information from the position detection apparatus and generates, from pre-prepared design-plane information, excavation-topology-goal information that indicates a shape goal for the excavation target of the work device; and a work-device control unit that, on the basis of the position of the work device and the excavation-topology-goal information, which are acquired from the generation unit, executes excavation control that prevents the work device from digging beyond the aforementioned shape goal. During the execution of said excavation control, if unable to acquire the excavation-topology-goal information, the work-device control unit continues the excavation control using excavation-topology-goal information from before the point in time at which the work-device control unit became unable to acquire the excavation-topology-goal information.