| 摘要 |
PURPOSE:To improve driving controllability in such a way that cancel signals are brought out with measurement of azimuth difference by earth's magnetism, in an automatic winker cancel equipment of a motor cycle. CONSTITUTION:An earth's magnetism sensor 5 has a doughnut shape and detects 90 deg. deflected output X.Y. The output is amplified and smoothed, and it is memorized by a capacitor 13 in the sample hold circuit 10 through a transistor 12 which is worked by turning a winker switch 11 ON. Besides, it makes joint entry with direct signal from an amplifier 9 into positive and negative voltage differential amplifiers 14, 14', and azimuth difference is continuously measured. The measured value is compared with the predetermined azimith difference in the comparator 15, and when the azimuth difference due to revolution of the vehicle overpasses the determined value, it gives cancel signals. In addition, in the OR gate 17, it selects signals which remarkably generate azimuth difference for either X or Y. |
