Function allocation for automated driving systems

Patent metadata

Field	Value
Publication number	US-12077175-B2
Application number	US-202117499283-A
Country	US
Kind code	B2
Filing date	Oct 12, 2021
Priority date	Oct 14, 2020
Publication date	Sep 3, 2024
Grant date	Sep 3, 2024

Abstract

Provided herein is technology relating to intelligent transportation systems and automated vehicles and particularly, but not exclusively, to function allocation systems and methods for a connected automated vehicle highway system that provides transportation management and operations and vehicle control for connected and automated vehicles.

First claim

We claim:

1. A function allocation system (FAS) comprising:
a communication module;
a data module; and
a computing module,
wherein said FAS is configured to perform a function allocation method comprising:
analyzing a scene;
analyzing system functional demands, wherein analyzing system functional demands comprises constructing a required feature set {B n , C w }, where B n represents a control level and C w represents a function feature; and
constructing a scene requirement feature set S m,n,w ={A m , B n , C w }, where A m represents a sub-scene, B n represents said control level, and C w represents said function feature;
analyzing system functional restrictions;
determining a function allocation using a function demand-constraint matching algorithm; and
allocating sensing functions, decision-making functions, and control functions to a connected automated vehicle (CAV) system and to a connected automated highway (CAH) system according to said function allocation.

2. The FAS of claim 1 , wherein said FAS is configured to allocate sensing functions, decision-making functions, and control functions to said CAV system having a vehicle intelligence level V and to said CAH system having an infrastructure intelligence level I to provide a system intelligence level S for said CAVH system to manage automated driving.

3. The FAS of claim 1 , configured to provide a collaborative sensing function, a collaborative decision-making function, and a collaborative control function to said CAVH system.

4. The FAS of claim 1 , wherein said FAS allocates more of said control functions and/or more of said decision-making functions to said CAH system than to said CAV system.

5. The FAS of claim 1 , wherein analyzing a scene comprises dividing a main scene A into multiple sub-scenes {A 1 , A 2 , A 3 , A 4 }, where A 1 represents road facility characteristics of a road in the main scene; A 2 represents road geometry characteristics of the road in the scene; A 3 represents traffic flow characteristics of the road in the scene; and A 4 represents weather characteristics of the road in the scene.

6. The FAS of claim 1 , wherein analyzing system functional restrictions comprises analyzing functional limitations of the CAH system for a sub-scene; constructing a limitation function I m,n,w of the CAH system for said sub-scene; analyzing functional limitations of the CAV system for said sub-scene; and constructing a limitation function V m,n,w of the CAV system for said sub-scene.

7. The FAS of claim 1 , wherein determining a function allocation using a function demand-constraint matching algorithm comprises:
calculating a function of limitation vectors K A,n,w ;
calculating a limitation function of the CAH system for a main scene A: F(I) A,n,w ;
calculating a limitation function of the CAV system for the main scene A: F(V) A,n,w ; and
providing a function allocation to provide automated driving for CAV in the main scene A according to:

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Assignees

• Cavh Llc

Inventors

• Ran Bin
• Mao Peipei
• Lu Wenqi
• Yi Ziwei
• Li Linheng
• Cheng Yang
• Xu Linghui
• Zheng Yuan
• Chen Tianyi
• Shi Haotian
• Wu Keshu

Classifications

• B60W40/04

  Traffic conditions · CPC title

• B60W2556/45

  External transmission of data to or from the vehicle · CPC title

• H04W4/44

  for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H] · CPC title

• B60W2555/20

  Ambient conditions, e.g. wind or rain · CPC title

• B60W40/06

  Road conditions · CPC title