Sandvik Mining and Construction Oy

Mikko Kitula

Jussi Puura

Mikko Kouvo

Ville Vare

Petri Timonen

Sami Haikio

Matti Joutsela

Petri Rantanen

Harri Vatanen

Lauri Siivonen

Samuli Verho

Raimo Juntunen

Tommi Tiihonen

Severi Eerola

Tiina Ärrälä

Jorma Hongisto

Mikko Valtee

Henri Liikanen

Sami Huhtamaa

Esko Laihonen

Tuomas Iljin

Jouni Ahtiainen

Ville VÄRE

Drill rig

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.

Method and arrangement for controlling electric current in tether cable of mining vehicle

Wheel loader

An underground mining vehicle includes an electric motor for driving the vehicle, a rechargeable battery for supplying electric energy to the electric motor and a charging system for recharging the rechargeable battery. A control unit is configured to control an operation of the charging system for controlling the recharging of the battery. The control unit is configured to have a number of selectable recharging modes (FRM, SLRM, SERM) and to control the recharging of the battery according to the selected recharging mode (FRM, SLRM, SERM). The vehicle also has a transmitter controlled by the control unit for sending a status notification about an automatic change from a recharging mode to another recharging mode to an operator remote terminal device of an operator of the vehicle.

Charging notification arrangement in underground mining vehicle

An underground mining vehicle includes an electric motor for driving the vehicle and a rechargeable battery for supplying electric energy to the electric motor. A charging system is connected to an electric power source external to the vehicle for recharging the at least one rechargeable battery. A cooling system is connected to a cooling agent source external to the vehicle for cooling the rechargeable battery. At least one detection element for detecting the cooling system is connected to the external cooling agent source.

Charging connector arrangement in underground vehicle

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Tampere, Finland

Mikko Kitula