SWIVEL JOINT AND CONSTRUCTION MACHINE HAVING THE SAME

    公开(公告)号:EP3875694A1

    公开(公告)日:2021-09-08

    申请号:EP21160875.7

    申请日:2021-03-05

    发明人: BAE, Kwangsik

    IPC分类号: E02F9/00 E02F9/26 F16L27/08

    摘要: Embodiments of the present disclosure may be directed to a swivel joint for connecting hydraulic oil between a lower body of a construction machine and an upper body rotatably supported by the lower body, the swivel joint including: a rotation support body including a first body supported by the lower body and a second body rotatably coupled to the first body and rotating together with the upper body when the upper body rotates; and a sensor supported by the rotation support body to detect rotation of the upper body.

    SYSTEM AND METHOD OF CONTROLLING WHEEL LOADER

    公开(公告)号:EP3851590A1

    公开(公告)日:2021-07-21

    申请号:EP21152572.0

    申请日:2021-01-20

    摘要: A control system for a wheel loader (10) includes an upper sensor (110) installed in a driver cabin (40) to obtain shape information data for an object (T) in front of the driver cabin, a lower sensor (120) installed in a front body (12) to obtain shape information data for an object (T) in front of the front body, a work apparatus position detection portion configured to detect a position of a work apparatus (20,30) connected rotatably to the front body, and an obstacle detection control device (300) configured to receive the shape information data from the upper sensor and the lower sensor and configured to calculate a distance to the object (T) based on the information data of any one selected from the upper sensor (110) and the lower sensor (120) according to the detected position of the work apparatus (20,30).

    SYSTEM AND METHOD FOR CONTROLLING CONSTRUCTION MACHINERY

    公开(公告)号:EP3848516A1

    公开(公告)日:2021-07-14

    申请号:EP21150577.1

    申请日:2021-01-07

    IPC分类号: E02F9/26 G06Q50/08 G06T1/00

    摘要: A control system for construction machinery (10) includes an upper camera (110) installed in a driver cabin (40) to photograph the front of the driver cabin, a lower camera (120) installed in a vehicle body to photograph the front of the vehicle body, a work apparatus posture detection portion configured to detect a posture of the work apparatus connected rotatably to the vehicle body, an image processing portion (200) configured to synthesize first and second images captured from the upper camera and the lower camera into one image, and configured to transparency-process at least one of the first and second images in the synthesized image according to the posture of the work apparatus detected by the work apparatus posture detection portion, and a display device (300) configured to display the synthesized image transparency-processed by the image processing portion.

    BRAKING CONTROL DEVICE AND BRAKING CONTROL METHOD OF CONSTRUCTION MACHINE

    公开(公告)号:EP3736383A2

    公开(公告)日:2020-11-11

    申请号:EP19747081.8

    申请日:2019-01-28

    IPC分类号: E02F9/22 E02F9/20

    摘要: A brake control apparatus for construction machinery, includes first and second brake lines through which a brake oil is supplied to a front brake device and a rear brake device of the construction machinery, first and second proportional flow control valves installed respectively in the first and second brake lines to control a flow rate of the brake oil in proportion to inputted first and second brake control signals, a sensing portion configured to detect work and travel information of the construction machinery, and a controller configured to output the first and second brake control signals in response to a brake manipulation signal of a driver, and configured to control independently the first and second proportional flow control valves based on the work and travel information of the construction machinery detected by the sensing portion.

    METHOD AND SYSTEM FOR CONTROLLING WHEEL LOADER

    公开(公告)号:EP3702538A1

    公开(公告)日:2020-09-02

    申请号:EP20159997.4

    申请日:2020-02-28

    IPC分类号: E02F9/20

    摘要: In a method of controlling a wheel loader, the wheel loader is moved forwards such that a bucket penetrates into an aggregate to perform an excavation work. Signals able to be used to determine tire slip of the wheel loader are obtained during the excavation work. Prediction algorithms obtained through training are performed to determine whether or not the tire slip occurs. In case of the tire slip, an engine speed is decreased and the bucket is lifted to remove the tire slip. The bucket is moved along a predetermined autonomous excavation trajectory when the tire slip is removed.

    SMART DOOR APPARATUS OF A CONSTRUCTION MACHINE

    公开(公告)号:EP3647125A1

    公开(公告)日:2020-05-06

    申请号:EP19207067.0

    申请日:2019-11-05

    IPC分类号: B60R16/02

    摘要: A smart door apparatus includes an actuator and a harness (100). The actuator is installed at a door (D) rotatably connected with a cabin (C) of the construction machine via a hinge mechanism (UH, LH). The actuator may be configured to operate a locking apparatus of the door by signals of a smart key (99). The harness (100) is arranged in an axial direction (X) of the hinge mechanism (UH, LH) to supply electricity to the actuator. Thus, only torsion may be applied to the harness regardless of rotation angles of the door to increase a lifespan of the harness (100).

    CONSTRUCTION MACHINE SAFETY APPARATUS AND CONTROLLING METHOD

    公开(公告)号:EP3578721A1

    公开(公告)日:2019-12-11

    申请号:EP18750672.0

    申请日:2018-02-12

    IPC分类号: E02F9/20 E02F9/22 E02F9/24

    摘要: The present invention is directed to a method of controlling a safety apparatus of a construction machine that includes a key switch, a parking switch, an FNR switch, a pilot cutoff solenoid valve, a pilot cutoff switch and a vehicle controller, the method including: applying a power to the construction machine when a key switch operation of a worker is input; receiving operation signals of the parking switch, the FNR switch, and the pilot cutoff switch; determining whether operation states of the parking switch, the FNR switch, and the pilot cutoff switch satisfy predetermined conditions; and controlling the construction machine to be available for the start-up when the predetermined conditions are satisfied. The predetermined conditions are that the parking switch is operated to be on so that a parking brake is operated, the FNR switch is operated to select a neutral so that a traveling direction of the construction machine is in a neutral state, and the pilot cutoff switch is operated to be on so that the construction machine is in a pilot cutoff state. According to the safety apparatus of the construction machine and a controlling method thereof, safety accidents that may occur during the start-up of an engine or during the operation of the construction machine can be effectively prevented.