Ford Global Technolgoies, LLC

Trw Automotive U.S. LLC

John Barrs

Ronald Patrick Brombach

David L Becker

Stephen J Horner

Kevin P Jokipii

Jonathan R Penvose

Apparatus and systems are disclosed for detecting outages in an LED lamp assembly. An example disclosed lamp assembly includes a plurality of LED circuits serially connected together. The LED circuits include an LED, a first resistor and an optocouper. The example disclosed lamp assembly also includes a sense line electrically coupled to one of the LED circuits. The sense line has a first voltage value when all of LEDs in that plurality of LED circuits are operational and a second voltage value when at least one of the LEDs has failed.

Detecting outages in a LED lamp assembly

A code wheel () is rotatable with a vehicle steering wheel (). A magnet () mounted on a rotatable driven component () indicates the number of revolutions of the code wheel (). A sensing device () is provided to sense a flux field provided by the magnet (). The magnetic flux field varies relative to the sensing device () as the driven component () is rotated by the code wheel ().

Sensor assembly

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Farmington Hills, MI, United States of America

John Barrs