US Patent 10954709 Vehicle assembly having a capacitive sensor

A bus includes a vehicle body, a plurality of capacitive sensors mounted along a perimeter of the vehicle body, wherein one of the capacitive sensors capacitively couples to an electrically conductive object proximal to the portion of the vehicle body such that the capacitance of the one of the capacitive sensors changes, and a controller coupled to the capacitive sensors, the controller being configured to alert an operator of the bus when the object is coupled to the at least one capacitive sensor.