Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Indication or control of braking – acceleration – or deceleration
Reexamination Certificate
1999-10-29
2001-08-28
Louis-Jacques, Jacques H. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Indication or control of braking, acceleration, or deceleration
C340S461000, C340S479000, C303S124000, C303S181000
Reexamination Certificate
active
06282480
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention is directed to a brake control unit, and more specifically to a brake control display.
Various prior art brake control units have provided a display to a user of the brake control unit. These displays have included a plurality of light emitting diodes (LEDs) and/or seven segment displays. The LED-type display has provided an indication of the magnitude of the output of the brake control unit. The seven segment display has provided a numerical value for the output of the brake control unit. However, the prior art brake control units, with numerical-type displays, have only provided a readable display if installed in a normal mode. Additionally, no prior art brake control unit has provided a alphanumeric indication of whether a load (brake electromagnet) was coupled to the brake control unit.
SUMMARY OF THE INVENTION
An embodiment of the present invention is directed toward a technique for providing a properly oriented brake control display irrespective of whether a brake control unit is installed in a normal or inverted mode. In one embodiment, the brake control unit determines whether a brake control signal is asserted when the brake control unit is connected to a vehicle power supply. In another embodiment, a position sensitive device is utilized to determine the orientation of the brake control unit. If the brake control unit is installed in the inverted mode, the brake control display is inverted. Another embodiment of the present invention is directed toward determining and displaying a status of a brake load on the brake control display. Yet another embodiment of the present invention is directed toward determining and displaying an output voltage of the brake control unit on the brake control display.
These and other features, advantages and objects of the present invention will be further understood and appreciated by those skilled in the art by reference to the following specification, claims, and appended drawings.
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Eccleston Larry
Morse Dennis M.
Smith Bruce E.
Louis-Jacques Jacques H.
Price Heneveld Cooper DeWitt & Litton
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