DRIVING ASSISTANCE DEVICE AND METHOD

• US 20140212849A1
• Filed: 09/21/2012
• Published: 07/31/2014
• Est. Priority Date: 09/26/2011
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Takeuchi, Shojiro, Sugimoto, Hironobu, Naiwala, Chandrasiri Pathiranehelage
• Granted Patent: US 10,629,088 B2
• Time in Patent Office: Days
• US Class Current: 434/66
• CPC Class Codes: B60W 2556/10 Historical data
• CPC Class Codes: B60W 40/09 Driving style or behaviour
• CPC Class Codes: G09B 19/167 Control of land vehicles
• CPC Class Codes: G09B 5/12 different stations being capable of presenting different information simultaneously G09B5/14 takes precedence
• CPC Class Codes: G09B 9/042 providing simulation in a real vehicle G09B9/052, G09B9/058 take precedence
• CPC Class Codes: G09B 9/052 characterised by provision for recording or measuring trainee's performance devices for psychotechnics, e.g. for vehicle drivers A61B5/16, A61B5/18

Abstract

A driving skill in input driving data is acquired from driving skill classification unit, driving data, which includes a driving skill higher than the driving skill in the input driving data and of which a similarity to the input driving data is at least a predetermined similarity, is selected from among driving data stored in a driving data storage unit, a difference between the selected driving data and the input driving data is detected, and a notice on the detected difference is issued as driving advice. As a result, it is possible to present suitable advice to improve a driving skill taking into account the skill and type of a driver.

Claims

1. A driving assistance device comprising:

driving data storage unit configured to store driving data on a plurality of drivers in association with driving skills of the drivers;

driving skill classification unit created on the basis of driving data on drivers whose driving skills are known, the driving skill classification configured to receive driving data as input, and determine a driving skill in the driving data;

driving data acquisition unit configured to receive input of driving data;

similarity calculation unit configured to calculate a similarity between two pieces of driving data;

difference detection unit configured to detect a difference in driving operation from the two pieces of driving data;

driving assistance unit configured to give advice on driving, wherein

the driving assistance unit further configured to;

acquire, from the driving skill classification unit, a driving skill in the driving data input to the driving data acquisition unit;

select driving data, which includes a driving skill higher than the driving skill in the input driving data and of which a similarity to the input driving data calculated by the similarity calculation unit is at least a predetermined similarity, from among the driving data stored in the driving data storage unit;

detect a difference between the selected driving data and the input driving data by the difference detection unit; and

issue a notice on the detected difference as driving advice.

2. The driving assistance device according to claim 1, wherein

the driving assistance unit selects driving data that is the most similar to the input driving data.

3. The driving assistance device according to claim 1, wherein

the driving data acquisition unit periodically acquires sensor data from a plurality of sensors, and converts the sensor data into data corresponded to positions at even intervals in order to obtain driving data.

4. A driving assistance method performed by a driving assistance device including:

driving data storage unit configured to store driving data on a plurality on drivers in association with driving skills of the drivers; and

driving skill classification unit created on the basis of driving data on drivers whose driving skills are known, the driving skill classification unit configured to receive driving data as input and determine a driving skill in the driving data,

the driving assistance method comprising;

a step of receiving input of driving data;

a step of acquiring a driving skill in the input driving data by the driving skill classification unit;

a step of selecting driving data, which includes a driving skill higher than the driving skill in the input driving data and of which a similarity to the input driving data is at least a predetermined similarity, from among the driving data stored in the driving data storage unit;

a step of detecting a difference between the selected driving data and the input driving data; and

a step of issuing a notice on the detected difference as driving advice.