Vehicle monitoring system
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United States of America Patent
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Jun 22, 2004
Issued Date -
N/A
app pub date -
Jan 15, 2003
filing date -
May 14, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A vehicle monitoring system for monitoring a condition of relatively moving vehicle components, particularly including the pushrod of a brake actuator, including a magnet on one of the components, a sensor on the other component within the magnetic field of the magnet generating a signal indicating a condition of the moving component, an electrically conductive coil preferably surrounding the magnet generating a current and an active RF chip connected to the coil and the sensor, thereby providing current to the active RF chip for signaling a receiver. In the disclosed embodiment of a brake actuator monitoring system, the magnet is fixed on the pushrod and the coil surrounds the pushrod and magnet.
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