| 摘要 |
PURPOSE: A traffic lane deviation alarming method is provided to prevent a driver from wrongly recognizing the breadth of a car and the width of a road and to output an alarm before entering the road when entry to the road is impossible by determining the entry possibility of the road using a car front radar. CONSTITUTION: A traffic lane deviation alarming method includes following steps. A car breadth sensing function is turned on in a 1st step(S103). A traffic lane of a road to enter is determined in a 2nd step(S104). A minimum entry width is calculated in a 3rd step(S105). Whether entry to the road is possible or not is determined using the calculated width of the road and car breadth information in a 4th step(S106). An alarm is outputted according to the determination of whether the entry is possible or not in a 5th step(S107). A curvature is calculated when the curvature occurs on the road during driving in a 6th step(S108). The entry possibility of the road is calculated using a calculated curvature and the whole length of the car in a 7th step(S109). The alarm is outputted according to whether the entry to the road of the calculated curvature is possible or not in an 8th step(S110). After the determination of the entry possibility of the road, whether a curvature occurs again or not is determined in a 9th step(S111). In case the curvature occurs again, the 7th step is repeated in a 10th step(S112). [Reference numerals] (AA) Alley determination algorithm; (S101) Vehicle speed 30Km/h and 5 seconds or more; (S102) No existence a left and right moving target by SRR; (S103) Vehicle width sensing function ON; (S104) Virtual lane calculation of a front radar; (S105) Minimum entry interval calculation; (S106) Entry determination by an intersection calculation by LRR; (S107,S110) Entry possibility alarm; (S108) Road curvature generation (re)calculation; (S109) Entry possibility calculation using the calculated curvature and the whole length of the car; (S111) Processing an algorithm by entry impossibility; (S112) Curvature regeneration; (S113) Curvature non-generation; |
