Autonomous driving assistance system, autonomous driving assistance method, and computer program
AssigneesAisin Aw Co., Ltd., Toyota Jidosha Kabushiki Kaisha
InventorsHirohiko Goto, Yuji Sato, Kuniaki Tanaka, Masaki Takano
Life of this patent
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Abstract
Autonomous driving assistance systems, methods, and programs obtain road information that specifies line types of lane markings and connection types of lanes and specify, when a vehicle travels with autonomous driving assistance, a planned route to be taken by the vehicle based on the road information. The systems, methods, and programs execute the autonomous driving assistance for the vehicle according to the specified planned route.
Claims8
An autonomous driving assistance system for a vehicle, comprising:
- a processor programmed to:
- access map information stored in a database;
- obtain road information that specifies line types of lane markings and connection types of lanes from the accessed map information;
- based on the obtained road information, determine whether a single route can be specified as a route that is to be taken by the vehicle, the determination being made based on a presumption that the vehicle travels without changing lanes;
- when the vehicle travels with autonomous driving assistance:
- if the single route can be specified, specify the single route as a planned route to be taken by the vehicle;
- and
- if the single route cannot be specified, specify a route along a road on which the vehicle is currently traveling as the planned route to be taken by the vehicle;
- and
- execute the autonomous driving assistance for the vehicle according to the specified planned route.
An autonomous driving assistance method for a vehicle, comprising the steps of:
- accessing map information stored in a database;
- obtaining road information that specifies line types of lane markings and connection types of lanes from the accessed map information;
- based on the obtained road information, determining whether a single route can be specified as a route that is to be taken by the vehicle, the determination being made based on a presumption that the vehicle travels without changing lanes;
- when the vehicle travels with autonomous driving assistance:
- if the single route can be specified, specifying the single route as a planned route to be taken by the vehicle;
- and
- if the single route cannot be specified, specifying a route along a road on which the vehicle is currently traveling as the planned route to be taken by the vehicle;
- and
- executing the autonomous driving assistance for the vehicle according to the specified planned route.
A computer-readable storage medium storing a computer-executable autonomous driving assistance program for a vehicle that causes a computer to perform the following functions:
- accessing map information stored in a database;
- obtaining road information that specifies line types of lane markings and connection types of lanes from the accessed map information;
- based on the obtained road information, determining whether a single route can be specified as a route that is to be taken by the vehicle, the determination being made based on a presumption that the vehicle travels without changing lanes;
- when the vehicle travels with autonomous driving assistance:
- if the single route can be specified, specifying the single route as a planned route to be taken by the vehicle;
- and
- if the single route cannot be specified, specifying a route along a road on which the vehicle is currently traveling as the planned route to be taken by the vehicle;
- and
- executing the autonomous driving assistance for the vehicle according to the specified planned route.
Dependencies are inferred from the claim text.