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It is necessary for legged robots to walk stably and smoothly on rough terrain.In this paper,a desired landing points(DLP) walking method based on preview control was proposed in which an off-line foot motion trace and an on-line modification of the trace were used to enable the robot to walk on rough terrain.The on-line modification was composed of speed modification,foot lifting-off height modification,step length modification,and identification and avoidance of unsuitable landing terrain.A planner quadruped robot simulator was used to apply the DLP walking method.The correctness of the method was proven by a series of simulations using the Adams and Simulink.
It is necessary for legged robots to walk stably and smoothly on rough terrain. This paper, a desired landing points (DLP) walking method based on preview control was proposed in which an off-line foot motion trace and an on-line modification of the trace were used to enable the robot to walk on rough terrain. The on-line modification was composed of speed modification, foot lifting-off height modification, step length modification, and identification and avoidance of unsuitable landing terrain. A planner quadruped robot simulator was used to apply the DLP walking method. The correctness of the method was proven by a series of simulations using the Adams and Simulink.