| 摘要 |
PURPOSE:To simplify circuit constitution by arranging a single, shift register circuit common to both light and left turn routes of the circuit and performing the reset of turn signal relays by means of reset signals outputted from the circuit. CONSTITUTION:A shift register circuit C is arranged for receiving inputs of pulse signals according to the direction and amount of a turn of a steering wheel generated by a steering angle sensor A via right and left turn detection circuits B-R and B-L. This circuit C is arranged so that the pulse signals are shifted and registered for the right and left input routes of the circuit respectively from directions opposite to each other. According to reset signals outputted from the circuit C, turn signal relays 7-R and 7-L are rest by means of a relay control circuit D including FF's 6-R and 6-L. The shift register circuit C is also constituted so that a reset signal is generated when an input pulse, after passing a specified passing point, has returned to a specified reset position. |
