公开(公告)号：US12275309B2

公开(公告)日：2025-04-15

申请号：US17511334

申请日：2021-10-26

Applicant: SEMES CO., LTD.

Inventor： Jun Beom Lee ,  Dong Hoon Yang

IPC: B60L15/00 ,  B60L15/20 ,  H01L21/677

Abstract: An apparatus for controlling driving of a transport vehicle in a goods transport system includes a processing unit providing information on a movement path of the transport vehicle, a motion controller generating a drive signal including front- and rear-wheel torque signals for driving front and rear wheels, respectively, of the transport vehicle, a front-wheel torque controller controlling rotation torque of the front wheel on the basis of the front-wheel torque signal, and a rear-wheel torque controller controlling rotation torque of the rear wheel on the basis of the rear-wheel torque signal. The motion controller includes a position controller generating a positional signal determining a position of the transport vehicle, a speed controller generating a speed signal determining a speed of the transport vehicle, and a torque distributor generating the front- and rear-wheel torque signals.

公开(公告)号：US12280961B2

公开(公告)日：2025-04-22

申请号：US17066671

申请日：2020-10-09

Applicant: SEMES CO., LTD.

Inventor： Jun Beom Lee ,  Yeong Jae Choe ,  Dong Hoon Yang ,  Jeong Eun Kim

IPC: B65G43/02 ,  B65G1/04 ,  H01L21/67 ,  H01L21/677

Abstract: A method and a device for controlling an OHT vehicle are proposed. The method and device presents a solution in which it is possible to minimize a repetition of start and stop of a vehicle, due to congestion on a track, by providing a buffer distance or a buffer waiting time, when the control target vehicle starts due to moving out of range of a proximity distance to a preceding vehicle, after stopping according to reaching of the proximity distance to the preceding vehicle, during driving the OHT control target vehicle.