Power controller for vehicle
1 Assignment
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Accused Products
Abstract
An electric power controller for vehicle comprises an overheat detector, a voltage detector, a voltage converter, a switching unit, and a controller. The overheat detector detects whether a power line supplying power from a vehicle battery to vehicle load is overheated. The voltage detector detects a voltage of the vehicle battery. The voltage converter converts power from the vehicle battery into a proper voltage and outputs a switching control signal reflecting the proper voltage. The switching unit performs ON/OFF switching operations based on the switching control signal to control power from the vehicle battery to the vehicle load. The controller receives an overheat signal from the overheat detector and the voltage from the voltage detector, determines whether there is an abnormal current, and outputs a switching control signal, corresponding to a change of the voltage, to the switching unit.
12 Citations
28 Claims
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1-5. -5. (canceled)
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6. An electric power controller for a vehicle, comprising:
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an overheat detector for detecting whether a power line supplying power from a vehicle battery to a vehicle load is overheated;
a voltage detector for detecting a voltage of the vehicle battery;
a voltage converter for converting power from the vehicle battery into a proper voltage and outputting a switching control signal reflecting the proper voltage;
a switching unit for performing ON/OFF switching operations based on the switching control signal to control power from the vehicle battery to the vehicle load; and
a controller for inputting an overheat signal from the overheat detector and the voltage from the voltage detector, determining whether there is an abnormal current, outputting a switching control signal, corresponding to a change of the voltage, to the switching unit, and adjusting occurrence intervals of switching control signals, corresponding to respective ON and OFF states, to control the magnitude of effective value of vehicle power supplied to the vehicle load via the switching unit. - View Dependent Claims (7, 8, 9, 10, 11)
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12. An electric power controller for a vehicle, comprising:
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an overheat detector for detecting whether a power line supplying power from a vehicle battery to a vehicle load is overheated;
a voltage detector for detecting a voltage of the vehicle battery;
a voltage converter for converting power from the vehicle battery into a proper voltage and outputting a switching control signal reflecting the proper voltage;
a switching unit for performing ON/OFF switching operations based on the switching control signal to control power from the vehicle battery to the vehicle load; and
a controller for inputting an overheat signal from the overheat detector and the voltage from the voltage detector, determining whether there is an abnormal current, and outputting a switching control signal, corresponding to a result to analyze change of the voltage, to the switching unit, wherein the electric power controller is installed in a printed circuit board of a junction box and electrically connected thereto. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. An electric power controller for a vehicle, comprising:
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an overheat detector for detecting whether a power line supplying power from a vehicle battery to loads is overheated;
a voltage detector for detecting a voltage of the vehicle battery;
a voltage converter for converting power from the vehicle battery into a proper voltage and outputting a switching control signal reflecting the proper voltage;
a switching unit for performing ON/OFF switching operations based on the switching control signal to control power from the vehicle battery to the vehicle load loads; and
a controller for inputting an overheat signal from the overheat detector and the voltage from the voltage detector, determining whether there is an abnormal current, and outputting a switching control signal, corresponding to a result to analyze a change of the voltage, to the switching unit, wherein the electric power controller is installed in a printed circuit board of a junction box, and electrically connected thereto by a line connector such that one end of the line connector is connected to an input/output interface terminal of the printed circuit board and the other end thereof. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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Specification