In order to enable safe deceleration of a transport unit of a long-stator linear motor, wherein in a normal mode a plurality of drive coils of the long-stator linear motor are energized in such a way that a magnetic field coupled to a transport unit is moved along a direction of motion in order to move the transport unit along the direction of motion, according to the invention a switching to a controlled short-circuit mode is performed during the braking operation of the transport unit, in which at least some of the drive coils are short-circuited at least over a first time interval in said mode.

In one embodiment, systems and methods of controlling switch modules for dynamically deriving selective circuitries within a plurality of similar voltage energy storage devices of an energy storage system, and/or, within a plurality of stators of a motor/generator, or a plurality of stators of system of motors/generators, thereby optimizing the utilization of energy stored, consumed, and regenerated in the operation of a vehicle.

A device which is configured for controlling a vehicle drive (40) for traction of a vehicle has a drive control apparatus and a monitoring apparatus. In order to ensure a high degree of safety when using the vehicle drive during rapid deceleration of the vehicle, the monitoring apparatus provides a traction release control signal value to the drive control apparatus, under the effect of which the drive control apparatus is enabled to control the vehicle drive, if, in addition to a traction release request signal value due to a rapid deceleration request and an additional traction lock request signal value due to a traction lock request, an additional traction release request signal value due to a traction release condition has effect on the monitoring apparatus. There is also described a vehicle with such a device and to a method for controlling a vehicle drive for traction of a vehicle.

A system and method of managing power for an electric motor drive system is provided, where at least two electric motor drives are connected to a common power bus, each of the electric motor drives connected to at least one electric motor. A voltage of the common power bus is monitored, and upon the voltage of the common power bus exceeding a prescribed threshold voltage it is determined which of the at least two electric motor drives is operating in a mode other than a regeneration mode. The electric motor drive operating in a mode other than a regeneration mode is commanded to drive the connected motor into a load to dissipate the regenerated energy.

Various embodiments include method for determining a temperature of an active layer of a heating resistor for a recuperation system of a motor vehicle comprising: determining an instantaneous value of a current flowing through the active layer of the heating resistor at a first time; determining an instantaneous value of a voltage present on the active layer at the first time; calculating an instantaneous value of an electrical resistance based on the determined instantaneous value of the current and the determined instantaneous value of the voltage; and determining an instantaneous value of a temperature of the active layer from the calculated value of the electrical resistance.

Various embodiments include method for determining a temperature of an active layer of a heating resistor for a recuperation system of a motor vehicle comprising: determining an instantaneous value of a current flowing through the active layer of the heating resistor at a first time; determining an instantaneous value of a voltage present on the active layer at the first time; calculating an instantaneous value of an electrical resistance based on the determined instantaneous value of the current and the determined instantaneous value of the voltage; and determining an instantaneous value of a temperature of the active layer from the calculated value of the electrical resistance.

A heat distribution device for hybrid vehicle is provided, including: an engine cooling circuit through which cooling water for cooling an internal combustion engine circulates; a MG cooling circuit through which a refrigerant for cooling a motor generator circulates; and a heat exchanger which performs heat exchange between the cooling water and the refrigerant. When it is determined based on a charging rate SOC of a battery that the battery can be charged, charging control is performed to charge the battery with electric power generated in a regenerative operation; when it is determined that the battery cannot be charged, heat dissipation control is performed to dissipate the heat generated by the regenerative operation to the engine cooling circuit side by the heat exchange between the refrigerant and the cooling water in the heat exchanger.

An electrically driven, movable underground vehicle and a method for operating the same, includes a chassis with at least two driven drive wheels, an electrical trailing cable for connection to an electrical supply network, an electric drive motor, which is electrically connected to the trailing cable, for driving the drive wheels, and an energy storage unit. The vehicle further includes an auxiliary drive motor with a subsequent hydraulic fluid transmission, a switchgear assembly and a processor for controlling the supply of the electric drive motor and the electric auxiliary drive motor with electrical energy. The drive motor directly drives the drive wheels while bypassing the hydraulic fluid transmission. Also, the energy provided by the energy storage unit is sufficient for driving the drive wheels and for temporarily moving the load-haul-dump machine independently of the supply network.

A vehicle control device for decelerating by the regenerative braking of a motor connected to a drive shaft of a drive wheel calculates a torque command value for suppressing a vibration component of the drive shaft by feeding back a torsional angular velocity of the drive shaft to a desired torque that determines the power of the motor and controls the operation of the motor on the basis of the torque command value. The control device estimates a dead zone section, in which the torque of the motor in the vehicle is not transmitted to the drive shaft, on the basis of the desired torque and limits the torque command value in the case where the vehicle is in the dead zone section.

A vehicle control device for decelerating by the regenerative braking of a motor connected to a drive shaft of a drive wheel calculates a torque command value for suppressing a vibration component of the drive shaft by feeding back a torsional angular velocity of the drive shaft to a desired torque that determines the power of the motor and controls the operation of the motor on the basis of the torque command value. The control device estimates a dead zone section, in which the torque of the motor in the vehicle is not transmitted to the drive shaft, on the basis of the desired torque and limits the torque command value in the case where the vehicle is in the dead zone section.