PROBLEM TO BE SOLVED: To provide a driving environment evaluation system capable of predicting oncoming low visibility by calculation and evaluating a driving environment indicating the easiness of driving a vehicle on the basis of the prediction result.SOLUTION: A driving environment evaluation system comprises: a low visibility recognition unit 111 for numerically evaluating a current low visibility level D3 at a prescribed point on the basis of an image taken by a preceding vehicle 100 when it was traveling at the same point; and a low visibility prediction unit 212 for estimating and calculating the amount of low visibility level change from now to the future after the elapse of a prescribed time by calculation using the amount of past rainfall D1 for the prescribed time from the past to now at the same point and the amount of predicted rainfall D2 for the prescribed time from now to the future. The low visibility prediction unit 212 evaluates, as the evaluation value of the driving environment at the point, a low visibility prediction level D4 which serves as an evaluation value obtained by adding the estimated and calculated amount of low visibility level change to the current low visibility level D3 obtained by the low visibility recognition unit 111, and provides the evaluation value for a succeeding vehicle 400 through a communication unit 210.SELECTED DRAWING: Figure 1
【課題】将来の視界不良を演算予測し、その予測結果に基づいて車両の走りやすさを示す走行環境を評価することのできる走行環境評価システムを提供する。【解決手段】走行環境評価システムは、所定の地点を走行する先行車両100が撮影した画像に基づき同地点における現在の視界不良レベルD3を数値評価する視界不良認識部111と、同地点における過去から現在までの所定時間における過去降水量D1と現在から将来の所定時間における予測降水量D2とを用いて現在から所定時間経過後の将来にかけての視界不良レベル変化量を推定演算する視界不良予測部212を備える。視界不良予測部212は、視界不良認識部111による現在の視界不良レベルD3に対し、上記推定演算した視界不良レベル変化量を加味した評価値となる視界不良予測レベルD4を、当該地点の走行環境の評価値として評価し、その評価値を通信部210を通じて後続車両400へ情報提供する。【選択図】図1
DRIVING ENVIRONMENT EVALUATION SYSTEM
走行環境評価システム
2016-10-13
Patent
Elektronische Ressource
Japanisch
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