Patent Number: 6,169,952

Title: System for determining passability of vehicle

Abstract: A system for determining the passability of a vehicle through a section of road ahead of the vehicle is controlled based on coordinates of a plurality of nodes N.sub.N (N.sub.1, N.sub.2, N.sub.3, N.sub.4 . . . ) constituting the road section ahead of a subject vehicle. The system calculates a passing-state determination amount .theta..sub.N /L.sub.N for each of the nodes N.sub.N, and based on the passing-state determination amount .theta..sub.N /L.sub.N, the system then determines whether the vehicle can positively or safely pass through the road section. The passing-state determination amount .theta..sub.N /L.sub.N serves as an indicator which represents a degree of difficulty in the passage of the vehicle through the nodes N.sub.N and which is obtained, for example, by dividing an angle .theta..sub.N formed by a line segment connecting the adjacent nodes N.sub.N by a distance L.sub.N between the adjacent nodes N.sub.N. Even if only one or two nodes N.sub.N exist on a curve, it is possible to accurately determine whether the vehicle can pass the curve by using the passing-state determination amount .theta..sub.N /L.sub.N.

Inventors: Matsuda; Shohei (Saitama, JP), Otabe; Makoto (Saitama, JP), Sakaki; Yuji (Saitama, JP)

Assignee: Honda Giken Kogyo Kabushiki Kaisha

International Classification: B60K 31/00 (20060101); G01C 21/26 (20060101); G06F 165/00 ()

Expiration Date: 01/02/2018