Autonomous vehicles

JP7878180B2Active Publication Date: 2026-06-23TOYOTA JIDOSHA KK

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
TOYOTA JIDOSHA KK
Filing Date
2023-06-27
Publication Date
2026-06-23

AI Technical Summary

Benefits of technology

【0007】 車両の速度が低い場合は、車両の速度が高い場合よりも物体の認識を行うべき距離は短くて済む。ゆえに、車両の速度が低い場合は、車両の速度が高い場合よりも自動運転の事後的な検証を行う上で保存すべきデータの保存距離を抑制することができる。本開示の車両によれば、車両の速度に応じてデータの保存距離を抑制することにより、データの記憶領域の空き容量のひっ迫を抑えることができる。

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Abstract

To appropriately save data to verify automatic driving of a vehicle after the fact.SOLUTION: A vehicle includes a sensor which recognizes an object around the vehicle. An automatic driving system of the vehicle saves data acquired by the sensor at the time of executing automatic driving. The automatic driving system suppresses, when a vehicle speed is low, a distance to save data acquired by the sensor compared to a case that the vehicle speed is high. The automatic driving system suppresses, when vacant capacity of a storage area capable of saving data is small, the maximum speed of the vehicle compared to a case that the vacant capacity is large.SELECTED DRAWING: Figure 3
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Claims

1. In vehicles capable of autonomous driving, A sensor for recognizing objects around the vehicle, At least one processor, The system comprises at least one memory that stores a plurality of instructions to be executed by the at least one processor, The plurality of instructions are provided to at least one processor, The data acquired by the sensors during the execution of the aforementioned autonomous driving is saved, If the speed of the vehicle is below a predetermined speed threshold, the data storage distance is reduced compared to when the speed is above the speed threshold. The system is configured to suppress the maximum speed of the vehicle more than when the available space in the storage area where the data can be stored is less than a predetermined free space threshold, if the available space is less than or equal to the free space threshold. A vehicle characterized by the following features.

2. In vehicles capable of autonomous driving, A sensor for recognizing objects around the vehicle, At least one processor, The system comprises at least one memory that stores a plurality of instructions to be executed by the at least one processor, The plurality of instructions are provided to at least one processor, The data acquired by the sensors during the execution of the aforementioned autonomous driving is saved, The data storage distance is continuously changed in conjunction with the vehicle's speed, and the data storage distance is suppressed as the speed decreases. The system is configured to suppress the maximum speed of the vehicle more than when the available space in the storage area where the data can be stored is less than a predetermined free space threshold, if the available space is less than or equal to the free space threshold. A vehicle characterized by the following features.

3. In the vehicle described in Claim 1, The sensor includes a forward sensor for recognizing an object in front of the vehicle and a rear sensor for recognizing an object behind the vehicle. The plurality of instructions are provided to at least one processor, When the speed is less than the speed threshold, the storage distance of the forward data acquired by the forward sensor is suppressed compared to when the speed is equal to or greater than the speed threshold. The system is configured to perform the following actions: if the maximum speed set for the multi-lane road on which the vehicle is traveling is less than a predetermined maximum speed threshold, the storage distance of the rear data acquired by the rear sensor is suppressed compared to when the maximum speed is equal to or greater than the maximum speed threshold. A vehicle characterized by the following features.

4. In the vehicle described in Claim 2, The sensor includes a forward sensor for recognizing an object in front of the vehicle and a rear sensor for recognizing an object behind the vehicle. The plurality of instructions are provided to at least one processor, The storage distance of the forward data acquired by the forward sensor is continuously changed in conjunction with the speed, and the storage distance of the forward data acquired by the forward sensor is suppressed as the speed decreases. The system is configured to perform the following actions: if the maximum speed set for the multi-lane road on which the vehicle is traveling is less than a predetermined maximum speed threshold, the storage distance of the rear data acquired by the rear sensor is suppressed compared to when the maximum speed is equal to or greater than the maximum speed threshold. A vehicle characterized by the following features.

5. In the vehicle according to any one of claims 1 to 4, If the sensor is a LiDAR, The plurality of instructions are provided to at least one processor, The storage distance of the point cloud data acquired by the LiDAR is changed according to the speed, If the aforementioned sensor is a camera, The plurality of instructions are provided to at least one processor, The system is configured to change the effective distance of the image data acquired by the camera according to the speed by changing the image compression ratio or sampling rate of the camera according to the speed. A vehicle characterized by the following features.