Systems, components, and methodologies are provided for electric power storage for electrically-propelled transportation vehicles for operation on roadways. An electric power storage system can include a housing with a compartment that contains a power storage device. The power storage device can include auxiliary terminals having terminal ends electrically connected with electrical power storage cells of the at least one power storage device. The auxiliary terminals can be arranged, apart from the main terminals, for engaging with safety enhancement material delivered to at least partially fill the housing for shorting the terminal ends.

Systems, components, and methodologies are provided for electric power storage for electrically-propelled transportation vehicles for operation on roadways. An electric power storage system can include a housing with a compartment that contains a power storage device. The power storage device can include auxiliary terminals having terminal ends electrically connected with electrical power storage cells of the at least one power storage device. The auxiliary terminals can be arranged, apart from the main terminals, for engaging with safety enhancement material delivered to at least partially fill the housing for shorting the terminal ends.

A device (1) for connecting an electric power source (8) with an electric appliance (9) comprising a first electric coil (4), connecting the electric power source (8) with the device (1) and a second electric coil (5), connecting the electric appliance (9) with the device (1), at least one sensor (6) arranged outside the device (1) for identifying a speed of air, an alarm device connected to the at least one sensor (6) configured such that depending on the speed of air generates a pre-alarm signal and/or a main alarm signal and/or cuts an electric connection between the electric power source (8) and the electric appliance (9), and an electric circuit having an input element (7) configured such that by operating the input element (7) after the end of a preset period of time, the electric connection between the electric power source (8) and the electric appliance (9) is activated, if the at least one sensor (6) does not identify a preset speed of air.

A device (1) for connecting an electric power source (8) with an electric appliance (9) comprising a first electric coil (4), connecting the electric power source (8) with the device (1) and a second electric coil (5), connecting the electric appliance (9) with the device (1), at least one sensor (6) arranged outside the device (1) for identifying a speed of air, an alarm device connected to the at least one sensor (6) configured such that depending on the speed of air generates a pre-alarm signal and/or a main alarm signal and/or cuts an electric connection between the electric power source (8) and the electric appliance (9), and an electric circuit having an input element (7) configured such that by operating the input element (7) after the end of a preset period of time, the electric connection between the electric power source (8) and the electric appliance (9) is activated, if the at least one sensor (6) does not identify a preset speed of air.

A power supply control apparatus includes: a semiconductor switching element switched with PWM control; a PWM signal output unit outputting a PWM signal; a current circuit outputting a current related to a current flowing through the semiconductor switching element; a filter circuit converting the current that is output from the current circuit to a voltage; an overcurrent protection circuit turning off the semiconductor switching element based on a voltage value of the voltage filtered by the filter circuit; a voltage detection unit detecting the voltage value of the voltage at a timing near an end of a pulse of a PWM signal; a temperature estimation unit estimating, a temperature of an electric wire through which a current flows that also flows through the semiconductor switching element; and an electric wire protection unit turning off the semiconductor switching element based on the temperature estimated by the temperature estimation unit.

An overcurrent protection device is to be provided between a power supply and a load circuit including an electric load and an electric wire electrically connected with each other, and includes a switching element, a current detector, a characteristic estimation portion, and a controller. The switching element switches flowing and interrupting of a load current that flows from the power supply to the electric load. The current detector detects the load current. The characteristic estimation portion estimates a thermal characteristic of the electric wire based on the load current detected by the current detector. The controller outputs an overcurrent protection signal for interrupting the load current so as to protect the load circuit from an overcurrent to the switching element based on the thermal characteristic estimated by the characteristic estimation portion and the load current detected by the current detector.

A device (1) for connecting an electric power source (8) with an electric appliance (9) comprising a first electric coil (4), connecting the electric power source (8) with the device (1) and a second electric coil (5), connecting the electric appliance (9) with the device (1), at least one sensor (6) arranged outside the device (1) for identifying a speed of air, an alarm device connected to the at least one sensor (6) configured such that depending on the speed of air generates a pre-alarm signal and/or a main alarm signal and/or cuts an electric connection between the electric power source (8) and the electric appliance (9), and an electric circuit having an input element (7) configured such that by operating the input element (7) after the end of a preset period of time, the electric connection between the electric power source (8) and the electric appliance (9) is activated, if the at least one sensor (6) does not identify a preset speed of air.

A device (1) for connecting an electric power source (8) with an electric appliance (9) comprising a first electric coil (4), connecting the electric power source (8) with the device (1) and a second electric coil (5), connecting the electric appliance (9) with the device (1), at least one sensor (6) arranged outside the device (1) for identifying a speed of air, an alarm device connected to the at least one sensor (6) configured such that depending on the speed of air generates a pre-alarm signal and/or a main alarm signal and/or cuts an electric connection between the electric power source (8) and the electric appliance (9), and an electric circuit having an input element (7) configured such that by operating the input element (7) after the end of a preset period of time, the electric connection between the electric power source (8) and the electric appliance (9) is activated, if the at least one sensor (6) does not identify a preset speed of air.

In a converter system having an AC/DC converter, and a method for operating a converter system, in which the terminal of the AC/DC converter on the direct-voltage side feeds a series circuit, which has a braking resistor and a controllable switch, the terminal of a DC/AC converter, in particular an inverter, on the direct-voltage side being connected in parallel to the series circuit. The output signal of a voltage-acquisition device is supplied to an evaluation unit, which generates a control signal for the controllable switch. The evaluation unit includes a device for determining the electric power supplied to the braking resistor, in particular from the intermediate circuit, which is determined by the device from the output signal of the voltage-acquisition device, in particular. The output signal of the device is supplied to a controller, in particular a linear controller, and the controller controls its set value toward the output signal of the device. The controller in particular has a linear controller element, in particular a PI controller element or integration element, whose set value, i.e. whose output signal, is forwarded to a difference generator for determining the difference between the set value and the value of the electric power, the set value being supplied, directly or via a limiter, to a parameterizable filter, whose output signal is supplied to a switching element, which in particular generates an output signal for opening or closing the controllable switch as a function of the exceeding or undershooting of a threshold value.

Method for protecting an electric motor of a motor driven consumer equipped with a controller for controlling the capacity or the power of the consumer, comprises the following steps: the determination of the thermal condition of the motor by direct measurement on the motor; and the limitation of the maximum capacity or the maximum power of the consumer as a function of the aforementioned determined thermal condition.