Inter-vehicle distance estimation method and inter-vehicle distance estimation device
AssigneeNissan Motor Co., Ltd.
InventorsKuniaki Noda, Fang Fang
Life of this patent
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Abstract
An inter-vehicle distance estimation method includes: estimating a screened area screened by an obstacle from a sensor and two unscreened areas sandwiching the screened area; and, based on speeds of two tracked vehicles traveling in a same traffic lane respectively within the two unscreened areas, estimating the inter-vehicle distances from the two tracked vehicles to a tracked vehicle traveling in the same traffic lane within the screened area.
Claims5
An inter-vehicle distance estimation method using a sensor that detects positional information of objects around a vehicle, and a processing circuit that estimates inter-vehicle distances between a plurality of tracked vehicles detected based on the positional information, comprising:
- causing the processing circuit to estimate a screened area screened by an obstacle from the sensor and two unscreened areas sandwiching the screened area;
- and
- causing the processing circuit to, based on speeds of two of the tracked vehicles traveling in a same traffic lane respectively within the two unscreened areas, estimate the inter-vehicle distances from the two tracked vehicles to one of the tracked vehicles traveling in the same traffic lane within the screened area.
An inter-vehicle distance estimation device comprising:
- a sensor that detects positional information of objects around a vehicle;
- and
- a processing circuit that estimates inter-vehicle distances between a plurality of tracked vehicles detected based on the positional information,
- wherein the processing circuit estimates a screened area screened by an obstacle from the sensor and two unscreened areas sandwiching the screened area,
- based on speeds of two of the tracked vehicles traveling respectively within the two unscreened areas, the processing circuit estimates a speed of one of the tracked vehicles traveling within the screened area, and
- based on the estimated speed of the tracked vehicle, the processing circuit estimates the inter-vehicle distances between the plurality of tracked vehicles.
Dependencies are inferred from the claim text.