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.

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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.