公开(公告)号：US10155646B2

公开(公告)日：2018-12-18

申请号：US15104576

申请日：2014-10-06

Applicant: DOOSAN CORPORATION

Inventor： Jin Yong Lee

IPC: B66F17/00 ,  B66F9/12 ,  B66F9/24 ,  B66F9/22

Abstract: The present disclosure relates to an apparatus and a method for controlling a forklift. The apparatus and the method for controlling the forklift according to the present disclosure adjusts a fork/mast inclination by referring to cargo load and forklift speed, and particularly, when a movement direction of a cargo when the cargo slides on a fork in a forward direction, thereby preventing the cargo from falling. Further, when a degree of danger is not decreased even when a fork/mast inclination is tilted backward to the largest extent, the apparatus and the method for controlling the forklift according to the present disclosure may decrease a travelling speed of a vehicle by decreasing an output of the forklift or operating a brake, thereby remarkably decreasing the danger of the cargo falling.

公开(公告)号：US11691537B2

公开(公告)日：2023-07-04

申请号：US16234853

申请日：2018-12-28

Applicant: DOOSAN CORPORATION

Inventor： Jin Yong Lee

IPC: B60L58/25 ,  B66F9/075 ,  B60Q5/00 ,  B66F9/24 ,  B60L50/60 ,  H01M10/48 ,  B60L1/00

CPC classification number: B60L58/25 ,  B60L1/003 ,  B60L50/60 ,  B60Q5/005 ,  B66F9/075 ,  B66F9/07572 ,  B66F9/24 ,  H01M10/486 ,  B60L2200/42 ,  B60L2240/545 ,  B60L2250/10 ,  H01M2220/20

Abstract: The present disclosure relates to an electric forklift and a method of driving the same which are capable of increasing a lifespan of a battery, and the electric forklift includes: a traveling motor which operates a wheel; a working machine motor which operates a working machine; a control unit which controls the operations of the traveling motor and the working machine motor based on an output control signal inputted from the outside; a battery which supplies electric power to the traveling motor, the working machine motor, and the control unit; and a temperature detecting unit which detects a temperature of the battery, in which the control unit controls an operation of at least one of the traveling motor and the working machine motor based on a detected temperature from the temperature detecting unit.

公开(公告)号：US11407329B2

公开(公告)日：2022-08-09

申请号：US16545018

申请日：2019-08-20

Applicant: DOOSAN CORPORATION

Inventor： Jin Yong Lee

IPC: H02J7/00 ,  B60L58/24 ,  B60L15/00 ,  B60W20/13 ,  B60W10/26 ,  B60L50/50 ,  B60L58/26

Abstract: An apparatus for controlling vehicle motors based on a battery temperature includes: a battery temperature sensor unit for measuring a temperature of a battery pack of an industrial vehicle; a battery monitoring unit for monitoring a measured value of the temperature sensor unit, and for transmitting temperature information when the temperature of the battery pack is out of a reference value that is predetermined; a vehicle control unit for restricting driving of a motor that receives a power from the battery pack based on the temperature information; and a fan control unit for controlling driving of a fan that cools the battery pack based on the temperature information.

公开(公告)号：US10757786B2

公开(公告)日：2020-08-25

申请号：US16474129

申请日：2017-12-28

Applicant: DOOSAN CORPORATION

Inventor： Jin Yong Lee

IPC: H05B47/10 ,  F21S41/30 ,  B60Q1/06 ,  B66F9/075 ,  B66F17/00 ,  B60Q1/26

Abstract: An apparatus for controlling irradiated light of a forklift according to an embodiment of the present invention is characterized in including: a lamp driving unit for controlling an illumination angle of a lamp that illuminates a forklift; a fork position sensing unit provided at one side of the forklift or a carriage, and sensing a lifted position of a fork; and a control unit for controlling the illumination angle of the lamp through the lamp driving unit according to the lifted position of the forklift, when the lifted position is input from the fork position sensing unit.