| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that a direction signal which is output from a direction calculation and processing part is frequently changed over by a direction change cause inside a vehicle and that the display of a direction indicator flashes (hunts) so as to give a distrust feeling to a viewer. SOLUTION: The direction calculation and processing part is provided with a hysteresis characteristic. The hysteresis characteristic is changed by the direction change cause on the side of the vehicle.
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