Patent ID: 7005978
Filing Date: 2006-02-28
Classification: B60Q

Abstract:
1. A vehicle direction indication device that drives a direction indication light configured with a light emitting diode in a flashing manner, as a result of switching of a direction indication light switch, comprising: a control unit that detects a voltage of a battery power supply, and outputs a signal generated by pulse width modulating a flash signal for driving the direction indication light in the flashing manner with a duty ratio based upon the detected voltage of the battery power supply when the direction indication light switch is switched on, the duty ratio at which the voltage of the battery power supply is high being smaller than that at which the voltage of the battery power supply is low; and a drive unit that drives the direction indication light in the flashing manner due to application of the voltage of the battery power supply to the direction indication light, as a result of the signal output by the control unit, wherein the duty ratio is one hundred percent when the voltage of the battery power supply is equal to or below a predetermined voltage, and the duty ratio is set so as to become smaller in a step-like manner as the voltage of the battery power supply increases above the predetermined voltage.