Patent ID: 8749142
Filing Date: 2014-06-10
Classification: B60Q

Abstract:
1. An LED lighting system for exterior lights of an automobile, comprising: a first lighting unit primarily for outputting a first automotive light signal; a failure detection system for detecting a failure of the first lighting unit; a second lighting unit primarily for outputting a second automotive light signal, wherein the second lighting unit comprises an LED light unit; and a controller circuit, wherein, in response to concurrently-requested outputs from the first lighting unit and the second lighting unit, the controller circuit is adapted to determine if there is failure of the first lighting unit, and if there is failure of the first lighting unit, determine whether to apply the first automotive light signal or the second automotive light signal based upon respective priorities of the automotive light signals, and to use the second lighting unit to generate the first automotive light signal in response to determining that the first automotive light signal has a higher priority than the second automotive light signal.