| 摘要 |
PURPOSE:To perform suitable automatic cancelling in a winker cancelling system of a motorcycle by processing the handle steering angle in normal speed running as a cancelling signal and processing the staggering in low speed running as a noise. CONSTITUTION:When the direction change starts in relatively high speed running the output of a noise eliminating circuit B changes with the output of a sensor 1 and becomes the steering angle potentials of left and right turns at amplifiers 17 and 18, and the output of an amplifier 21 becomes H when said steering angle potentials exceed the preset potential to turn on a transistor 24 of an output circuit E outputting a cancelling signal. When a staggering occurs in low speed running condition the ON period proportion of a semiconductor switch 5 is small and the mean time constant of an integrating circuit 8 becomes large to attenuate the signal in the noise eliminating circuit B to eliminate it as a noise. Thus, the winker will not be cancelled unnecessarily by the staggering. |
