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US 2004/0061379 A1Published application
Method and system for protecting a vehicle system from a load dump
OwnerMark A. Gohlkeinventor
Life of this patent
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Abstract
A method for protecting a vehicle system from a load dump includes sensing an input voltage pulse exceeding a first value and determining whether the voltage pulse is a load dump. The method includes disconnecting the system from power if the voltage pulse is a load dump and absorbing the voltage pulse if the voltage pulse is not a load dump.
Claims23
A method for protecting a vehicle system from a load dump, comprising:
- sensing an input voltage pulse exceeding a first value;
- determining whether the voltage pulse is a load dump;
- disconnecting the system from power if the voltage pulse is a load dump;
- and
- absorbing the voltage pulse if the voltage pulse is not a load dump.
2 more elements
A method for displaying an image at a display unit, comprising:
- receiving an image from a video source coupled to the display unit;
- projecting the image onto a fold mirror of the display unit;
- reflecting the image onto an imaging mirror of the display unit for viewing by a user;
- sensing an input voltage pulse exceeding a first value;
- determining whether the voltage pulse is a load dump;
- and
- disconnecting the display unit from power if the voltage pulse is a load dump.
4 more elements
A protection circuitry system for protecting a vehicle system from a load dump, comprising:
- a pulse detector operable to:
- sense an input voltage pulse exceeding a first value;
- and
- determine whether the voltage pulse is a load dump;
- a series switch coupled to the pulse detector, the series switch operable to disconnect the system from power if the voltage pulse is a load dump;
- and
- a load spike protector coupled to the pulse detector, the load spike protector operable to absorb the voltage pulse if the voltage pulse is not a load dump.
4 more elements
Dependencies are inferred from the claim text.