DIRECTION INDICATOR AND DISTRESS LIGHT Russian patent published in 2003 - IPC

FIELD: automotive industry. SUBSTANCE: invention relates to electrical equipment of automobiles. Proposed direction indicator includes diode unit, voltage stabilizer, comparator, reference level setter, two AND gates, second multivibrator, sound warning device and two diodes. Output of diode unit are connected with output contact of distress light switch, with output of contacts with direction indicator switch, first inputs of AND gates, supply terminals of AND gate and power amplifiers and with input of voltage stabilizer. Second inputs of AND gates are connected with output of first multivibrator and input of second multivibrator whose output is connected to sound warning device. Output of first AND gate is connected with inputs of power amplifiers. Output of voltage stabilizer is connected to supply terminals of multivibrators, comparator and reference level setter. Cathodes of diodes are connected with input of direction indicator pilot lamp and first input of comparator, and their anodes are connected with outputs of electronic switches whose inputs are connected with second output of resistor. Second input of comparator is connected with output of reference level setter, and output of comparator is connected with control input of first multivibrator. As a result, flickering frequency of pilot lamps remains in each channel one and the same as one and the same multivibrator is used which is supplied through voltage stabilizer. EFFECT: provision of reliable control of state of pilot lamps of direction indicators with use of simple switching elements. 3 dwg