Driving assistance device and driving assistance method

• US 10,353,394 B2
• Filed: 08/08/2017
• Issued: 07/16/2019
• Est. Priority Date: 08/12/2016
• Status: Active Grant

• Current Assignee: Nagoya University, Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Takada, Hiroaki, Watanabe, Yousuke, Takaki, Kentaro, Morikawa, Takayuki, Ninomiya, Yoshiki, Teshima, Shigeharu
• Primary Examiner(s): Hilgendorf, Dale W
• Application Number:
  US15/671,852
• Publication Number:
  US 20180046193A1
• Time in Patent Office: 707 Days
• CPC Class Codes: B60W 2050/0027 Minimum/maximum value selectors
• CPC Class Codes: B60W 2540/30 Driving style
• CPC Class Codes: B60W 2552/00 Input parameters relating to infrastructure
• CPC Class Codes: B60W 2554/00 Input parameters relating to objects
• CPC Class Codes: B60W 2554/20 Static objects
• CPC Class Codes: B60W 2554/4041 Position
• CPC Class Codes: B60W 2554/4046 Behavior, e.g. aggressive or erratic
• CPC Class Codes: B60W 2555/60 Traffic rules, e.g. speed limits or right of way
• CPC Class Codes: B60W 2556/45 External transmission of data to or from the vehicle
• CPC Class Codes: B60W 2756/10 Involving external transmission of data to or from the vehicle
• CPC Class Codes: B60W 30/08 Active safety systems predicting or avoiding probable or impending collision or attempting to minimise its consequences
• CPC Class Codes: B60W 30/09 Taking automatic action to avoid collision, e.g. braking and steering
• CPC Class Codes: B60W 30/095 Predicting travel path or likelihood of collision
• CPC Class Codes: B60W 30/0953 the prediction being responsive to vehicle dynamic parameters
• CPC Class Codes: B60W 30/0956 the prediction being responsive to traffic or environmental parameters
• CPC Class Codes: B60W 30/18154 Approaching an intersection
• CPC Class Codes: B60W 50/0097 Predicting future conditions
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention
• CPC Class Codes: B60W 60/0027 using trajectory prediction for other traffic participants
• CPC Class Codes: G05D 1/0011 associated with a remote control arrangement
• CPC Class Codes: G05D 1/0055 : with safety arrangements
• CPC Class Codes: G05D 1/0276 : using signals provided by a source external to the vehicle involving a plurality of vehicles G05D1/0287; automatically controlling vehicle speed responsive to externally generated signals B60K31/0058
• CPC Class Codes: G05D 1/0289 : with means for avoiding collisions between vehicles vehicle fittings for automatically controlling speed including means for detecting potential obstacles B60K31/0008; avoiding obstacles by action on the steering system B62D; radar, sonar, lidar systems designed for anti-collision purposes G01S13/93, G01S15/93, G01S17/93
• CPC Class Codes: G08G 1/161 : Decentralised systems, e.g. inter-vehicle communication
• CPC Class Codes: G08G 1/163 : involving continuous checking
• CPC Class Codes: G08G 1/164 : Centralised systems, e.g. external to vehicles
• CPC Class Codes: G08G 1/166 : for active traffic, e.g. moving vehicles, pedestrians, bikes

Abstract

A driving assistance device includes a driving situation acquisition unit that acquires driving situations of vehicles that may collide with each other, a driving characteristics acquisition unit that acquires driving characteristics of drivers of the vehicles, a driving action determination unit that determines driving actions that allow the vehicles to avoid collision with each other in the driving situation acquired by the driving situation acquisition unit and that match the driving characteristics acquired by the driving characteristics acquisition unit, and a driving action instruction unit that instructs the vehicles about the driving actions determined by the driving action determination unit.

Claims

1. A driving assistance device comprising:

a driving situation acquisition unit that acquires driving situations of a first vehicle and a second vehicle;

a driving characteristics acquisition unit that acquires driving characteristics of a first driver of the first vehicle and driving characteristics of a second driver of the second vehicle, the driving characteristics including a plurality of driving actions, each of the plurality of driving actions being assigned a driving characteristic score;

a driving action determination unit that generates a plurality of combinations of driving actions of the first driver and driving actions of the second driver that allow the vehicles to avoid collision with each other in the driving situation acquired by the driving situation acquisition unit and selects a combination of a first driving action of the first driver and a second driving action of the second driver among the plurality of combinations based on driving characteristic scores for the first driving action and the second driving action acquired by the driving characteristics acquisition unit; and

a driving action instruction unit that instructs the first vehicle and the second vehicle to perform the first driving action and the second driving action determined by the driving action determination unit.

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

the driving action determination unit is arranged remotely from a vehicle.

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

the driving action determination unit is mounted on a vehicle.

4. A driving assistance method comprising:

acquiring driving situations of a first vehicle and a second vehicle;

acquiring driving characteristics of a first driver of the first vehicle and driving characteristics of a second driver of the second vehicle, the driving characteristics including a plurality of driving actions, each of the plurality of driving actions being assigned a driving characteristic score;

generating a plurality of combinations of driving actions of the first driver and driving actions of the second driver that allow the vehicles to avoid collision with each other in the acquired driving situation;

selecting a combination of a first driving action of the first driver and a second driving action of the second driver among the plurality of combinations based on driving characteristic scores for the first driving action and the second driving; and

instructing the first vehicle and the second vehicle to perform the first driving action and the second driving action.

5. A vehicle comprising:

a driving assistance device comprising an electronic control device configured to;

acquire first information about driving situations of the vehicle and another vehicle;

acquire second information about driving characteristics of a driver of the vehicle and driving characteristics of another driver of the another vehicle, the driving characteristics including a plurality of driving actions, each of the plurality of driving actions being assigned a driving characteristic score;

generate a plurality of combinations of driving actions of the driver and driving actions of the another driver that allow the vehicle and another vehicle to avoid collision with each other in the acquired driving situation;

select a combination of a first driving action of the driver and a second driving action of the another driver among the plurality of combinations based on driving characteristic scores for the first driving action and the second driving action; and

send instructions to perform the first driving action to the vehicle and send instructions to perform the second driving action to the another vehicle.