Abstract: A vehicle sidelight control system is provided that automatically illuminates right or left sidelights inautomatic response to turning of a steering wheel or motorcycle handlebar, or in response to a vehicle movement that will operate a gravity-effective switch, such as the leaning of a motorcycle in a turn. In one embodiment, the gravity-effective switch assembly further incorporates control logic and a wireless transmitter, making aftermarket installation a simple task. The control system is extensible to manual control and/or cooperation with signals that otherwise exist in the vehicle. The control system can be used to operate decorative lights, or any auxiliary function that is desired to be associated with turning of a vehicle, instead of or in addition to operating sidelights.

Abstract: An improved sidelighting arrangement, device and method of controlling sidelight illumination of a motor vehicle during cornering employing two sets of side lamps, one for each side of the vehicle. The sidelighting arrangement apparatus includes a steering wheel angle sensor mounted on the column of the steering wheel for detecting a change in steering angle, a turn indicator sensor for detecting actuation of the turn indicator, a microprocessor for outputting an electrical signal to selectively illuminate a set of side lamps mounted on the side of the vehicle for controlling illumination of the sidelights during cornering of the motor vehicle responsive to the steering wheel in actuation of the turn signal for improved visibility for the operator of the vehicle and for improved safety of operation thereof by providing notice to other drivers of the cornering condition of the vehicle.