摘要 |
Methods and apparatus to cooperatively lift a payload (110) are disclosed. An example method to control a lift vehicle (102) includes determining (704) a first positional state of the lift vehicle (102) with respect to a payload (110) controlled by a plurality of lift vehicles (102, 104, ...) including the lift vehicle (102), determining (706) a second positional state of the lift vehicle (102) with respect to a goal location, detecting distances (708) to the other ones of the plurality of lift vehicles (102, 104, ...), determining (710) a third positional state of the lift vehicle (102) based on the distances to the other ones of the plurality of lift vehicles (102, 104, ...), and calculating (712-720) a control command to control the lift vehicle (102) based on the first positional state, the second positional state, and the third positional state. |