Abstract: In a power supply circuit of a snowmobile in which an AC voltage of a magneto 51 is converted into a DC voltage to charge a battery 53 and electric power is supplied to an ECU 58 through a power relay 55 in response to turning on of a main switch 54 to inject fuel to an engine, a light relay 1 is provided to supply electric power from the battery 53 to electric loads such as headlights and the like and the ECU 58 judges a frequency of the AC voltage generated by the magneto 51 and control to turn on or off the light relay 1 in accordance with whether the frequency exceeds a predetermined value or not.

Abstract: A motor vehicle light controlling device includes an operating switch and electronics assigned to the operating switch for supplying current to a multiplicity of lamps of the operating light system. At least one controlled switching component provides a clock-controlled supply of current to the assigned lamp circuit. The device is divided into a light switch module and a rear lamp module. A clock control provided, distributed over both modules, in order to influence the lamp currents of the vehicle operating lights. That is, in order to lower the luminosity of certain lights when required, and to be able to increase the on-board system voltage temporarily without the luminosity or lamp power changing as a result. The latter is of interest, for example, for the brief driving of electrical heating elements or servomotors to achieve an advantageously high utilization of conductor material.

Abstract: A lighting system, in particular for bicycles, which operates in accordance with the principle of a wind generator. The lighting system (1) is mounted at the front of the bicycle above the front wheel. A system comprising a dynamo (2), propeller (3), electrical circuit (6), battery (4) and lighting devices (5) which are adapted to each other permits the illumination of a tail light even when stationary. A voltage monitor and an overload protector are part of the circuit (6).

Abstract: A lighting system for a motor driven vehicle having a headlight for connection to a power source and a lighting switch operatively connected to the headlight for selectively supplying power thereto. A first detector member for detecting the on and off positions of the lighting switch and for generating a signal responsive thereto. A second detector member for detecting a stopped state and movement of the vehicle and for generating a signal responsive thereto. A converter operatively connected to the headlight and for connection to a power source for selectively adjusting the voltage supplied to the headlight in accordance with signals generated by the first and second detector members for dimming the headlight when the lighting switch is in an off position and during a stopped state of the vehicle.

Abstract: In an apparatus for controlling a headlight of a vehicle, a light from a preceding or oncoming vehicle can be detected without being disturbed by a light reflected on guardrails and the like, or light from a traffic signal, street lights and the like, and the illumination area of the headlight can be suitably adjusted without unnecessary switching of an illumination mode of the headlight. This control is carried out by receiving a light impinging on the front end of the vehicle by a light receiving member divided into a plurality of regions, by carrying out a comparison and discrimination between the light detection signals from the plurality of regions, and based on a result thereof, by selecting an appropriate illumination mode of the headlight.

Abstract: Automatic electronic direction alarming control for adaptation to a car, a motorcycle or other land vehicles, more specifically it means the provising of an alarming control which will release a flashing indication as a function of the speed of the vehicle, meant to enhance traffic safety by the prevention of collision by other traffic owing to misjudgement with regard to the active condition of a preceding traffic, and which consists essentially of ICs, switching transistors, RC circuits whose time constant serves to control the direction lights.

Abstract: A dimmer for use with a vehicle is provided. It has a vehicle speed detector circuit for detecting a state wherein the vehicle speed is within a predetermined range to generate a signal, an acceleration detector circuit for detecting a state wherein the acceleration of the vehicle is less than a predetermined value to generate a signal, switch means for controlling passage of a logical product which is obtained through a logic circuit alone or in combination with the respective signals from said vehicle speed detector circuit, said acceleration detector circuit and said switch circuit, and circuit means for controlling a light source in accordance with the output of said logic circuit.

Abstract: Tractor with speed-responsive circuit-interrupting switch for automatically dousing, at night, flood work lamps provided in a lighting circuit on the tractor. Switching is controlled according to a microcomputer chip program by which frequency of a ground speed transducer is compared with the speed limit speeds pre-assigned to an intermediate tractor speed range; thus deluminizing occurs, necessarily on the highest side, at one speed commonly associated with highway rate of travel whereas, on the lower side, the switching effective to reconnect and relight the lamps is at a materially different desired speed of the tractor.

Abstract: A control and signaling apparatus comprising a double acting switch having a conducting barrel and a spring loaded pin engageable with the barrel and being conducting in either of two preselected positions and a control circuit operable to selectively light any of three signal lamps in response to mechanical operation of motor vehicle controls.