US Pat. No. 10,363,865

SYSTEM AND METHOD FOR VEHICLE SAFETY LIGHTING

Admore Lighting, LLC, Ca...

1. A vehicle safety lighting system, comprising:a multi-axis accelerometer, mechanically coupled to a vehicle, configured to detect acceleration of the vehicle along each of a plurality of axes, the axes including a first axis, and a second axis that is normal to the first axis, and to output a corresponding plurality of acceleration measurements, the acceleration measurements include a first axis acceleration measurement and a second axis acceleration measurement;
a controller, coupled to the multi-axis accelerometer, and configured to:
apply a reference frame filtering process configured to generate, based at least in part on the first axis acceleration measurement and the second axis acceleration measurement, a filtered first axis acceleration measurement and a filtered second axis acceleration measurement, the filtered first axis acceleration measurement being aligned with an axial direction of the vehicle, and the filtered second axis acceleration measurement being aligned with a lateral axis, the lateral axis being normal to the axial direction of the vehicle,
determine a vehicle deceleration, based only on the filtered first axis acceleration measurement, and
detect the vehicle deceleration exceeding a brake light activation threshold and, based at least in part on said detection, output a deceleration light signal; and
a light emitting element (LEL) array, including a plurality of LELs coupled to the controller, the LEL array being configured to receive the deceleration light signal, and in response, emit a deceleration light.