VEHICLE IDENTIFICATION SYSTEM AND VEHICLE IDENTIFICATION DEVICE

• US 20140292545A1
• Filed: 07/26/2011
• Published: 10/02/2014
• Est. Priority Date: 07/26/2011
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Nemoto, Yusuke
• Granted Patent: US 9,836,964 B2
• Time in Patent Office: Days
• US Class Current: 340/988
• CPC Class Codes: B60K 2031/0016 Identification of obstacles; Selection of a target vehicle
• CPC Class Codes: B60K 2031/0033 Detecting longitudinal speed or acceleration of target vehicle
• CPC Class Codes: B60W 2554/4041 Position
• CPC Class Codes: B60W 2554/801 Lateral distance
• CPC Class Codes: B60W 2554/804 Relative longitudinal speed
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: B60W 2556/65 Data transmitted between vehicles
• CPC Class Codes: B60W 2754/10 Spatial relation or speed relative to objects
• CPC Class Codes: B60W 2754/30 Longitudinal distance
• CPC Class Codes: B60W 2754/50 Relative longitudinal speed
• CPC Class Codes: B60W 30/16 Control of distance between vehicles, e.g. keeping a distance to preceding vehicle
• CPC Class Codes: B60W 30/162 Speed limiting therefor
• CPC Class Codes: G01S 2013/9316 combined with communication equipment with other vehicles or with base stations
• CPC Class Codes: G01S 2013/9325 for inter-vehicle distance regulation, e.g. navigating in platoons
• CPC Class Codes: G08G 1/017 identifying vehicles G08G1/015, G08G1/054 take precedence
• CPC Class Codes: G08G 1/163 involving continuous checking
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes
• CPC Class Codes: G08G 1/22 Platooning, i.e. convoy of communicating vehicles

Abstract

A vehicle identification system includes a communication device receiving other vehicle information related to other vehicle around a host vehicle, a detection device detecting other vehicle around the host vehicle, and a vehicle identification device identifying a vehicle transmitting the other vehicle information on the basis of the other vehicle information received by the communication device and the detection device, wherein the vehicle identification device is switching between a capturing mode capturing the transmitting vehicle on the basis of the other vehicle information received by the communication device and the detection device, and a tracking mode identifying the transmitting vehicle on the basis of a positional relation between the host vehicle and the transmitting vehicle at the time of the capturing mode, and motion information related to the transmitting vehicle based on the other vehicle information received by the communication device, after the capturing mode.

Claims

1. A vehicle identification system comprising:

a communication device that receives other vehicle information related to other vehicle around a host vehicle;

a detection device that detects other vehicle around the host vehicle; and

a vehicle identification device that identifies a transmitting vehicle transmitting the other vehicle information on the basis of the other vehicle information received by the communication device and a result of detection by the detection device, wherein

the vehicle identification device is configured to switch between a capturing mode for capturing the transmitting vehicle on the basis of the other vehicle information received by the communication device and the result of detection by the detection device, and a tracking mode for identifying the transmitting vehicle on the basis of a positional relation between the host vehicle and the transmitting vehicle at the time of capturing in the capturing mode, and motion information related to the transmitting vehicle based on the other vehicle information received by the communication device, after the capturing in the capturing mode.

2. The vehicle identification system according to claim 1, wherein

the vehicle identification device captures the transmitting vehicle on the basis of absolute position information that is position information related to the transmitting vehicle based on the other vehicle information in the capturing mode, and identifies, in the tracking mode, the transmitting vehicle on the basis of relative position information that is position information related to the transmitting vehicle based on a reference position that is a position of the transmitting vehicle at the time of capturing in the capturing mode, and the motion information related to the transmitting vehicle.

3. The vehicle identification system according to claim 2, wherein

the vehicle identification device identifies, in the tracking mode, the transmitting vehicle on the basis of the relative position information based on the relative position information in the past in the tracking mode, and the motion information related to the transmitting vehicle.

4. The vehicle identification system according to claim 1, wherein

the vehicle identification device returns, in the tracking mode, to the capturing mode in accordance with a result of comparison between the motion information related to the transmitting vehicle based on the other vehicle information received by the communication device, and the result of detection by the detection device.

5. The vehicle identification system according to claim 4, further comprising

a traveling control device that controls deceleration of the host vehicle on the basis of deceleration of the other vehicle detected by the detection device, at the time of returning from the tracking mode to the capturing mode in accordance with the result of comparison.

6. A vehicle identification device configured to switch between a capturing mode for capturing a transmitting vehicle transmitting other vehicle information related to other vehicle around a host vehicle received by a communication device on the basis of the other vehicle information and a result of detection by a detection device that detects other vehicle around the host vehicle, and a tracking mode for identifying the transmitting vehicle on the basis of a positional relation between the host vehicle and the transmitting vehicle at the time of capturing in the capturing mode, and motion information related to the transmitting vehicle based on the other vehicle information received by the communication device, after the capturing in the capturing mode.