公开(公告)号：US20220242249A1

公开(公告)日：2022-08-04

申请号：US17612490

申请日：2020-05-20

Applicant: SANDVIK MINING AND CONSTRUCTION OY

Inventor： Samuli VERHO ,  Harri VATANEN ,  Tommi TIIHONEN ,  Mikko KOUVO ,  Raimo JUNTUNEN ,  Mikko KITULA

IPC: B60L9/00 ,  B60L53/302 ,  B60L53/18 ,  B60L50/53

Abstract: A method and arrangement are provided for controlling electric current in a tether cable of an electrically driven mining vehicle. An indicator of an equivalent cycle current that flows through said tether cable is determined, and one or more descriptors of an actual state of dynamically changing conditions of the tether cable are obtained. A current limiting value is determined on the basis of the indicator and the descriptors, and a total amount of current is limited that the mining vehicle draws through the tether cable to a value smaller than or equal to the determined current limiting value.

公开(公告)号：US20250043808A1

公开(公告)日：2025-02-06

申请号：US18717465

申请日：2022-12-09

Applicant: SANDVIK MINING AND CONSTRUCTION OY

Inventor： Samuli VERHO ,  Harri VATANEN

IPC: F15B15/18 ,  E21B7/02

Abstract: A hydraulic system, working vehicle, and method for producing hydraulic power to a hydraulic system of a working vehicle is provided. The hydraulic system includes a fixed displacement hydraulic pump and a speed and torque controlled electric motor for driving the hydraulic pump. An electric controller is arranged to adjust the speed of the electric motor and to thereby adjust produced hydraulic fluid flow and pressure in the system. Further, there is a bypass flow channel including a throttle element for directing limited continuous discharge fluid flow from the system.

公开(公告)号：US20240392628A1

公开(公告)日：2024-11-28

申请号：US18694639

申请日：2022-09-20

Applicant: SANDVIK MINING AND CONSTRUCTION OY

Inventor： Juho RANTANEN ,  Pertti PARKKINEN ,  Samuli VERHO ,  Harri VATANEN ,  Teemu HONGELL

IPC: E21B7/02 ,  E21B44/02

Abstract: A hydraulic system, rock drilling rig, and method for limiting the output performance of a hydraulic drilling actuator temporarily under execution of a safety function feature of the hydraulic system. The output performance is limited by limiting produced hydraulic fluid flow in a hydraulic circuit of the hydraulic drilling actuator, whereby a restricted magnitude of the fluid flow is produced at a hydraulic pump. This way a restricted operation mode is enabled and is controlled by a control unit.

公开(公告)号：US20230175232A1

公开(公告)日：2023-06-08

申请号：US17922225

申请日：2021-05-06

Applicant: SANDVIK MINING AND CONSTRUCTION OY

Inventor： Samuli VERHO ,  Harri VATANEN

IPC: E02F9/20 ,  E02F9/22 ,  E02F3/43

CPC classification number: E02F9/2029 ,  E02F9/2253 ,  E02F3/431

Abstract: A method includes the steps of receiving, during a first action of an automatic adaptive loading procedure by a work machine equipped with a boom and a bucket connected to the boom, driveline information of at least one driveline component of the work machine, defining a set of control parameters on the basis of the received driveline information, and controlling position of the boom, position of the bucket, and speed of the work machine on the basis of the defined set of control parameters during a second action of the automatic adaptive loading procedure.

公开(公告)号：US20220219546A1

公开(公告)日：2022-07-14

申请号：US17612394

申请日：2020-05-13

Applicant: SANDVIK MINING AND CONSTRUCTION OY

Inventor： Mikko KOUVO ,  Raimo JUNTUNEN ,  Mikko KITULA ,  Samuli VERHO ,  Harri ERIKSSON ,  Harri VATANEN ,  Jussi MIKKOLA ,  Jouni TEPPO

IPC: B60L9/00 ,  B60L50/51

Abstract: A mining vehicle includes a traction mechanism for propelling the mining vehicle, a traction motor for driving the traction mechanism, a cable connection for connecting the mining vehicle to an external source of electric energy, and an electric power link between the cable connection and the traction motor for conveying electric energy from said cable connection to said traction motor. The electric power link includes a DC power link. The mining vehicle also includes a traction DC/AC converter for converting DC power from the DC power link into AC power for feeding into the traction motor.

公开(公告)号：US20220163594A1

公开(公告)日：2022-05-26

申请号：US17425879

申请日：2020-01-28

Applicant: SANDVIK MINING AND CONSTRUCTION OY

Inventor： Mikko KUOVO ,  Harri VATANEN ,  Raimo JUNTUNEN

IPC: G01R31/392 ,  H01M10/44 ,  H01M10/48 ,  H02J7/00 ,  B60L58/16 ,  B60L53/62 ,  B60L53/65

Abstract: A method for determining the state of health of a battery by monitoring charging of the battery over multiple charging instances is provided. The method is implemented within charging stations by: recognizing the battery via a unique identifier; charging the battery; monitoring conditions of the battery during charging; storing data related to the current charging instance based at least partially on the monitored conditions; retrieving data related to at least one earlier charging instance of the uniquely identified battery; and making a determination of the uniquely identified battery's state of health based at least partially on a comparison of the data related to the current charging instance and the retrieved data related to at least one earlier charging instance.