摘要:
A vehicle navigation system includes a present position detector, an input device for inputting information required for route searching, inclusive of information identifying a starting point and a destination, an output device for outputting route guidance, an information memory containing map data for route guidance within a geographical area, and border line data for a border line defining a perimeter for the geographical area. A central processing unit determines whether or not the detected present position or starting point and the destination are within the geographical area stored in the information memory, determines a crossing point on the border line responsive to a determination that the present position or the starting point and the destination are not both in the geographical area and determines a travel route from the present position or starting point to the destination, which travel route passes through the crossing point. The information memory may be an element additionally containing data identifying locations outside of the geographical area in the form of remote location data which is correlated with respective border points. This system allows the user to be guided to a proper border crossing point even when the destination is outside of the geographical area covered by the map data stored in the information memory element, e.g. a CD-ROM.
摘要:
Provided is a device comprising at least one tubular piezo element for the electro mechanical positioning of a slider within the piezo element. The device has least one elastic friction means for exerting a normal force on the slider, the friction means being connected to the piezo element. A method for controlling the device is also disclosed.
摘要:
A power cell system such as a fuel cell system, with apparatus for detecting a discontinuity. A power cell system, e.g. a fuel cell system, includes a plurality of power cells, e.g. fuel cells and plurality of first resistances, the plurality of power cells and first resistances being connected in the form of a ladder circuit, and electronic filters each having a first connection to a first node between two of the first resistances, each electronic filter having a second resistance and a charge storage device connected to the second resistance.
摘要:
A system for measuring individual cell voltages of a fuel cell stack includes a plurality of voltage scanning units (VSU). Each VSU is arranged for being connected to a group of cells, belonging to the fuel cell stack, the group of cells being provided with terminals that allow measuring a cell voltage. Each VSU comprises a filter/regulator that provides a voltage reference signal Vref, that is applied to a first terminal of a first cell of the group of cells. The VSU further includes a multiplexer arranged for consecutively connecting the other terminals of the group of cells to a first input of an A/D converter, whereby the A/D converter is further provided with a second input for receiving the voltage reference signal Vref. The ADC is further arranged for being fed with a supply voltage Vsup+ and for A/D converting a signal derived from the signals at the first and second input.
摘要:
The present invention relates to a system for charge balancing over a plurality of rechargeable energy storage devices coupled in series, said system comprising a plurality of balancing units each assigned to one of the rechargeable energy storage devices, an AC signal generator for providing an AC signal to the plurality of balancing units, and a capacitive coupling between the AC signal generator and each of the plurality of balancing units for common mode rejection. A first balancing unit comprises a plurality of switches for transferring, on the one hand, charge from the AC signal generator or from an energy storage device assigned to another balancing unit for charging the energy storage device assigned to the first balancing unit, and, on the other hand, for transferring charge to the AC signal generator or to an energy storage device assigned to another balancing unit for discharging the energy storage device assigned to the first balancing unit.
摘要:
A power cell system such as a fuel cell system, with apparatus for detecting a discontinuity. A power cell system, e.g. a fuel cell system, includes a plurality of power cells, e.g. fuel cells and plurality of first resistances, the plurality of power cells and first resistances being connected in the form of a ladder circuit, and electronic filters each having a first connection to a first node between two of the first resistances, each electronic filter having a second resistance and a charge storage device connected to the second resistance.
摘要:
Provided is a device comprising at least one tubular piezo element for the electro mechanical positioning of a slider within the piezo element. The device has least one elastic friction means for exerting a normal force on the slider, the friction means being connected to the piezo element. A method for controlling the device is also disclosed.
摘要:
A system for measuring individual cell voltages of a fuel cell stack includes a plurality of voltage scanning units (VSU). Each VSU is arranged for being connected to a group of cells, belonging to the fuel cell stack, the group of cells being provided with terminals that allow measuring a cell voltage. Each VSU comprises a filter/regulator that provides a voltage reference signal Vref, that is applied to a first terminal of a first cell of the group of cells. The VSU further includes a multiplexer arranged for consecutively connecting the other terminals of the group of cells to a first input of an A/D converter, whereby the A/D converter is further provided with a second input for receiving the voltage reference signal Vref. The ADC is further arranged for being fed with a supply voltage Vsup+ and for A/D converting a signal derived from the signals at the first and second input.