DRIVING ASSISTANCE SYSTEM

• US 20140219510A1
• Filed: 10/05/2012
• Published: 08/07/2014
• Est. Priority Date: 12/27/2011
• Status: Active Grant

• Current Assignee: Arriver Software AB (Qualcomm, Inc.)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Nagaoka, Nobuharu, Aimura, Makoto, Nakamura, Yusuke
• Granted Patent: US 9,324,235 B2
• Time in Patent Office: Days
• US Class Current: 382/104
• CPC Class Codes: B60W 2050/0006 Digital architecture hierarchy
• CPC Class Codes: B60W 2554/00 Input parameters relating to objects
• CPC Class Codes: B60W 2556/45 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 40/04 Traffic conditions
• CPC Class Codes: B60W 40/06 Road conditions
• CPC Class Codes: G06V 20/58 Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
• CPC Class Codes: G08G 1/13 the indicator being in the form of a map
• 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
• CPC Class Codes: G08G 1/167 Driving aids for lane monitoring, lane changing, e.g. blind spot detection

Abstract

A vehicle (1) having a vehicle information acquisition unit (11) which acquires image captured by a vehicle mounted sensor (20) and a camera (21), a vehicle information transmission unit (13) which transmits vehicle information data indicating information acquired by the vehicle information acquisition unit (11) to a host computer (50), a first arithmetic processing result reception unit (14) which receives first arithmetic processing result data replied from the host computer (50), and a driving assistance unit (17) which executes driving assistance processing based on the first arithmetic processing result data, the host computer (50) has a vehicle information reception unit (52) which receives vehicle information data, a first arithmetic processing unit (53) which executes first arithmetic processing on vehicle information data, and a first arithmetic processing result transmission unit (54) which transmits first arithmetic processing result data indicating the first arithmetic processing result to the vehicle (1).

Claims

1. A driving assistance system of a vehicle comprising a vehicle and a host computer capable of mutual communication,

the vehicle comprising:

a vehicle information acquisition unit configured to acquire information related to at least one of a traveling condition of the vehicle and an object existing in a periphery of the vehicle;

a vehicle information transmission unit configured to transmit vehicle information data indicating information acquired by the vehicle information acquisition unit to the host computer;

a first arithmetic processing result reception unit configured to receive first arithmetic processing result data indicating a result of a predetermined first arithmetic processing on the vehicle information data which is replied from the host computer according to the transmission of the vehicle information data; and

a driving assistance unit configured to perform a predetermined first driving assistance processing based on the first arithmetic processing result data, the host computer comprising;

a vehicle information reception unit configured to receive the vehicle information data transmitted from the vehicle;

a first arithmetic processing unit configured to perform the first arithmetic processing on the vehicle information data; and

a first arithmetic processing result transmission unit configured to transmit the first arithmetic processing result data indicating the result of the first arithmetic processing to the vehicle.

2. The driving assistance system of the vehicle according to claim 1, wherein the host computer comprises,

an update communication unit configured to communicate with an update computer, and

a first arithmetic processing change unit configured to change a content of the first arithmetic processing by a software change data received by the update communication unit.

3. The driving assistance system of the vehicle according to claim 2, wherein, the update computer is configured to determine a content of the software change data which is transmitted to the host computer according to an operation by a user.

4. The driving assistance system of the vehicle according to claim 1,

wherein the first arithmetic processing result transmission unit is configured to,

in a case where the communication between the host computer and the vehicle switches from a capable state to an incapable state,

sequentially transmit to the vehicle a non-communicable state countermeasure data which instructs to perform a processing according to an elapsed time from a time point of switching to the incapable state, as the first arithmetic processing result data, until communication with the vehicle becomes capable next time.

5. The driving assistance system of the vehicle according to claim 4,

wherein the first arithmetic processing result transmission unit is configured to determine a content of the processing instructed by the non-communicable state countermeasure data based on the result of the first arithmetic processing on the vehicle information data received by the vehicle information reception unit when the communication between the host computer and the vehicle was capable.

6. The driving assistance system of the vehicle according to claim 1, wherein, the vehicle comprises,

a second arithmetic processing unit configured to perform a predetermined second arithmetic processing on the vehicle information data, and

the driving assistance unit performs a predetermined second driving assistance processing based on a result of the second arithmetic processing when the communication with the host computer is incapable.

7. The driving assistance system of the vehicle according to claim 6, wherein, the second arithmetic processing unit is provided in a potable terminal which is placed inside an interior of the vehicle and capable of communication with the vehicle information acquisition unit and the driving assistance unit, and is configured to perform the second arithmetic processing on the vehicle information data received from the vehicle information acquisition unit, and to transmit a second arithmetic processing result data which indicates the result of the second arithmetic processing to the driving assistance unit.

8. The driving assistance system of the vehicle according to claim 6,

wherein, the vehicle information acquisition unit is configured to acquire information related to the object existing in the periphery of the vehicle,

the second arithmetic processing unit is configured to perform a processing of determining a contact possibility of the vehicle and the object with respect the vehicle information data including information related to the object existing in the periphery of the vehicle acquired by the vehicle information acquisition unit, as the second arithmetic processing, and

the driving assistance unit is configured to perform a contact avoidance processing for avoiding the contact as the second driving assistance processing when communication with the host computer is in an incapable state and also a predicted time until the contact between the vehicle and the object is determined to be equal to or less than a predetermined time from the result of the second arithmetic processing, and when the communication with the host computer becomes capable during execution of the contact avoidance processing, configured to prohibit execution of the first driving assistance processing and to continue the contact avoidance processing.

9. The driving assistance system of the vehicle according to claim 6,

wherein the vehicle information acquisition unit is configured to acquire information related to the object existing in the periphery of the vehicle,

the first arithmetic processing unit is configured to perform a processing of determining a contact possibility of the vehicle and the object with respect the vehicle information data including information related to the object existing in the periphery of the vehicle acquired by the vehicle information acquisition unit, as the first arithmetic processing, and when the communication with the vehicle returns to a capable state from an incapable state and the first arithmetic processing is performed, to continue the first arithmetic processing if a predicted time until the vehicle and the object contact is longer than a predetermined time, and to terminate the first arithmetic processing and to transmit to the vehicle contact avoidance instruction data which instructs a contact avoidance control for avoiding contact of the vehicle and the object if the predicted time until the vehicle and the object contact is equal to or less than the predetermined time, and

the driving assistance unit is configured to perform the contact avoidance control when the contact avoidance instruction data is received.

10. The driving assistance system of the vehicle according to claim 6,

wherein the vehicle comprises a road environment recognition unit configured to recognize a road environment where the vehicle is traveling,

the vehicle information acquisition unit is configured to acquire a captured image of a camera equipped to the vehicle as the information related to the object existing in the periphery of the vehicle, and

the second arithmetic processing unit is configured to detect an animal preferentially as the object from the captured image and to perform a processing of determining a contact possibility with the vehicle, as the second arithmetic processing, when it is recognized by the road environment recognition unit that the vehicle is traveling a road in a suburban area, and configured to detect a pedestrian preferentially as the object from the captured image and to perform the processing of determining the contact possibility with the vehicle, as the second arithmetic processing, when it is recognized by the road environment recognition unit that the vehicle is traveling a road in a city area.

11. The driving assistance system of the vehicle according to claim 6,

wherein the vehicle information acquisition unit is configured to acquire a captured image of a camera equipped to the vehicle as the information related to the object existing in the periphery of the vehicle, and

the second arithmetic processing unit is configured, according to a selection operation by a driver of the vehicle, to switch between a contact determination processing which detects the object from the captured image and determines a contact possibility with the vehicle, and a lane mark recognition processing which recognizes a lane mark laying on a road from the captured image and calculates an interval with the vehicle, thereby to perform it as the second arithmetic processing.