Non-volatile fault display with magnetic reset switch for adaptive braking system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 6, 1989
Grant Date -
N/A
app pub date -
Mar 25, 1988
filing date -
Mar 25, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fault indicating mechanism for an electronic system, such as a vehicle adaptive braking system, includes a series of visual indicators, such as light emitting diodes, on one surface of the housing within which the electronic components comprising the system are sealed. Each of the indicators is activated in response to a predetermined malfunction sensed in the system, such as a defective speed sensor, defective modulator, or a defect in the electronic circuitry. A magnetically responsive switch is sealed within the housing adjacent the indicators, but is not visible from the exterior of the housing. The indicators are reset when the system is repaired by the mechanic who holds a common magnet against the housing adjacent the switch. When the switch is activated by a magnet, all of the indicators flash on and are then turned off. A non-volatile RAM stores malfunctions sensed by the system when the system is powered down, so that all malfunctions are again indicated immediately when the system is powered up.
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Cited Art Landscape
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