Drive-assist information providing system for driver of vehicle

• US 20080015772A1
• Filed: 06/26/2007
• Published: 01/17/2008
• Est. Priority Date: 07/13/2006
• Status: Abandoned Application

• Current Assignee: DENSO Corporation, Nippon Soken, Inc.
• Original Assignee: DENSO Corporation, Nippon Soken, Inc.
• Inventors: Kawaura, Masanori, Sanma, Norio, Yoshikawa, Yasuo, Kagawa, Masakazu
• Application Number:
  US11/821,883
• Publication Number:
  US 20080015772A1
• Time in Patent Office: Days
• US Class Current: 701/207
• CPC Class Codes: B60K 2360/785 on or in relation to the windshield or windows
• CPC Class Codes: B60K 2370/785 on or in relation to the windshield or windows
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60K 35/60 Instruments characterised by their location or relative disposition in or on vehicles arrangements of lighting devices on dashboards B60Q3/10
• CPC Class Codes: B60W 30/095 Predicting travel path or likelihood of collision
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention
• CPC Class Codes: G08G 1/04 using optical or ultrasonic detectors
• CPC Class Codes: G08G 1/096783 where the origin of the information is a roadside individual element
• CPC Class Codes: G08G 1/161 Decentralised systems, e.g. inter-vehicle communication

Abstract

A drive-assist information providing system is installed beforehand in a vehicle. The system provides drive-assist information to the driver when the vehicle is running, or temporarily halting, on one lane of a road within a predetermined assist zone. The system includes a first obtaining unit for obtaining a current position and behavior of the vehicle, and a second obtaining unit for obtaining a current position and behavior of an object around the vehicle. The system includes an identifying unit for identifying current circumstances of the vehicle and therearound based on the current position and behavior of the vehicle and on the current position and behavior of the object around the vehicle. The system includes a control unit for controlling how to provide the drive-assist information to the driver of the vehicle depending on the identified current circumstances of the vehicle and therearound.

Claims

1. A drive-assist information providing system installed in a vehicle and designed to provide drive-assist information to a driver of the vehicle when the vehicle is running, or temporarily halting, on one lane of a road within a predetermined assist zone, the system comprising:

a first obtaining unit configured to obtain a current position and behavior of the vehicle;

a second obtaining unit configured to obtain a current position and behavior of at least one object around the vehicle;

an identifying unit configured to identify current circumstances of the vehicle and therearound based on the current position and behavior of the vehicle and on the current position and behavior of the at least one object around the vehicle; and

a control unit configured to control how to provide the drive-assist information to the driver of the vehicle depending on the identified current circumstances of the vehicle and therearound.

2. A drive-assist information providing system according to claim 1, wherein the predetermined assist zone contains a traffic intersection, and the vehicle is running, or temporarily halting, on the one lane of the road within the predetermined assist zone toward the traffic intersection for changing a predetermined direction thereat while crossing an opposing lane of the road, and the drive-assist information to be provided to the driver of the vehicle is associated with conditions of the traffic intersection and therearound.

3. A drive-assist information providing system according to claim 2, wherein the identifying unit is configured to identify the current circumstances of the vehicle and therearound by executing, based on the current position and behavior of the vehicle and on the current position and behavior of the at least one object around the vehicle, at least one of first to fourth determinations,

the first determination being whether there is a forward vehicle located on the one lane of the road in front of the vehicle,

the second determination being whether there is an oncoming vehicle that approaches the traffic intersection on the opposing lane in order to change a direction thereat toward the one lane of the road;

the third determination being whether there is a traffic jam in the opposing lane; and

the fourth determination being whether the vehicle is temporarily halting.

4. A drive-assist information providing system according to claim 3, wherein the control unit is configured to determine, depending on the identified current circumstances of the vehicle and therearound:

whether to provide the drive-assist information to the driver of the vehicle; and

which provision modes of the drive-assist information to be given to the driver of the vehicle when it is determined to provide the drive-assist information to the driver of the vehicle.

5. A drive-assist information providing system according to claim 4, further comprising:

a first output unit configured to output information to be visibly recognizable by the driver of the vehicle; and

a second output unit configured to output information to be non-visibly recognizable by the driver of the vehicle,

wherein the control unit is configured to select at least one of the first and second output units based on the determined one of the provision modes to thereby cause the selected at least one of the first and second output units to output the drive-assist information.

6. A drive-assist information providing system according to claim 5, wherein the identifying unit is configured to identify that the current circumstances of the vehicle and therearound correspond to first circumstances when it is determined that there is a forward vehicle in front of the vehicle based on execution of the first determination, and wherein the control unit works to determine not to provide the drive-assist information to the driver of the vehicle based on the first circumstances.

7. A drive-assist information providing system according to claim 5, wherein the identifying unit is configured to identify that the current circumstances of the vehicle and therearound correspond to second circumstances when it is determined that:

there is not a forward vehicle in front of the vehicle based on execution of the first determination;

there is an oncoming vehicle that approaches the traffic intersection on the opposing lane in order to change a direction thereat toward the one lane of the road based on execution of the second determination; and

the vehicle is temporarily halting based on execution of the fourth determination,

and wherein the control unit works, based on the identified second circumstances, to;

determine to provide the drive-assist information to the driver of the vehicle; and

determine one of the provision modes to select at least the first output unit to thereby cause the selected first output unit to output the drive-assist information.

8. A drive-assist information providing system according to claim 5, wherein the identifying unit is configured to identify that the current circumstances of the vehicle and therearound correspond to third circumstances when it is determined that:

there is not a forward vehicle in front of the vehicle based on execution of the first determination;

there is not an oncoming vehicle that approaches the traffic intersection on the opposing lane in order to change a direction thereat toward the one lane of the road based on execution of the second determination; and

the vehicle is not temporarily halting based on execution of the fourth determination,

and wherein the control unit works to determine not to provide the drive-assist information to the driver of the vehicle based on the identified third circumstances.

9. A drive-assist information providing system according to claim 5, wherein the identifying unit is configured to identify that the current circumstances of the vehicle and therearound correspond to fourth circumstances when it is determined that:

there is not a forward vehicle in front of the vehicle based on execution of the first determination;

there is not an oncoming vehicle that approaches the traffic intersection on the opposing lane in order to change a direction thereat toward the one lane of the road based on execution of the second determination;

the vehicle is temporarily halting based on execution of the fourth determination; and

there is a traffic jam in the opposing lane,

and wherein the control unit works, based on the identified fourth circumstances, to;

determine to provide the drive-assist information to the driver of the vehicle; and

determine one of the provision modes to select at least the first output unit to thereby cause the selected first output unit to output the drive-assist information.

10. A drive-assist information providing system according to claim 5, wherein the identifying unit is configured to identify that the current circumstances of the vehicle and therearound correspond to fifth circumstances when it is determined that:

there is not a forward vehicle in front of the vehicle based on execution of the first determination;

there is an oncoming vehicle that approaches the traffic intersection on the opposing lane in order to change a direction thereat toward the one lane of the road based on execution of the second determination; and

the vehicle is not temporarily halting based on execution of the fourth determination,

and wherein the control unit works, based on the identified fifth circumstances, to;

determine to provide the drive-assist information to the driver of the vehicle; and

determine one of the provision modes to select the second output unit to thereby cause the selected second output unit to output the drive-assist information.

11. A drive-assist information providing system according to claim 5, wherein the identifying unit is configured to identify that the current circumstances of the vehicle and therearound correspond to sixth circumstances when it is determined that:

there is not a forward vehicle in front of the vehicle based on execution of the first determination;

there is not an oncoming vehicle that approaches the traffic intersection on the opposing lane in order to change a direction thereat toward the one lane of the road based on execution of the second determination;

the vehicle is temporarily halting based on execution of the fourth determination; and

there is not a traffic jam in the opposing lane,

and wherein the control unit works, based on the identified sixth circumstances, to;

determine to provide the drive-assist information to the driver of the vehicle; and

determine one of the provision modes to select the second output unit to thereby cause the selected second output unit to output the drive-assist information.

12. A drive-assist information providing system according to claim 5, further comprising:

a time-period information measuring unit configured to measure information to determine whether a current time period is daytime or nighttime;

a weather information measuring unit configured to measure information to determine whether a current weather is favorable;

a determining unit configured to determine whether the current time period is daytime and the current weather is favorable based on the information measured by the time-period information measuring unit and the information measured by the weather information measuring unit;

a camera image receiving unit configured to externally receive, as one of the drive-assist information, a camera image, the camera image visibly representing circumstances of the traffic intersection and its surroundings; and

an animation image generating unit storing therein background image data of the traffic intersection and therearound, image data of the vehicle and image data of the at least one object around the vehicle, the animation image generating unit working to generate an animation image by combining the background image data with both the image data of the vehicle and the image data of the at least one object around the vehicle based on the current position and behavior of the vehicle and on the current position and behavior of the at least one object around the vehicle,

wherein the control unit is configured to, when selecting the first output unit based on the determined one of the provision modes, select any one of the camera image and animation image based on the determination result of the determining unit to thereby cause the first output unit to display the selected one of the camera image and the background image.

13. A drive-assist information providing system according to claim 1, wherein at least one monitoring device has been installed in the vehicle, the at least one monitoring device working to monitor the at least one object around the vehicle and to output information indicative of the monitoring to the second obtaining unit, and the second obtaining unit is configured to obtain the current position and behavior of the at least one object around the vehicle based on the information indicative of the monitoring output from the at least one monitoring device.

14. A drive-assist information providing system according to claim 1, wherein the second obtaining unit is configured to wirelessly communicate with a roadside device installed on a roadside within the assist zone, the roadside device working to monitor the at least one object around the vehicle, and the second obtaining unit is configured to wirelessly access the roadside device to receive information indicative of the monitoring therefrom to thereby obtain the current position and behavior of the at least one object around the vehicle based on the received information.

15. A drive-assist information providing system according to claim 1, wherein a wirelessly communication device has been installed in the at least one object, the wirelessly communication device of the at least one object working to obtain the current position and behavior thereof, and the second obtaining unit is configured to wirelessly access the wirelessly communication device to receive information indicative of the current position and behavior of the at least one object therefrom to thereby obtain the current position and behavior of the at least one object around the vehicle based on the received information.

16. A program product embedded in a media accessible by a computer installed in a vehicle for providing drive-assist information to a driver of the vehicle when the vehicle is running, or temporarily halting, on one lane of a road within a predetermined assist zone, the program product comprising:

first means for instructing a computer to, when a current position and behavior of at least one object around the vehicle is externally input thereto, receive the current position and behavior of at least one object around the vehicle;

second means for instructing a computer to, when a current position and behavior of at least one object around the vehicle is externally input thereto, receive the current position and behavior of the at least one object around the vehicle;

third means for instructing a computer to identify current circumstances of the vehicle and therearound based on the current position and behavior of the vehicle and on the current position and behavior of the at least one object around the vehicle; and

fourth means for instructing a computer to control how to provide the drive-assist information to the driver of the vehicle depending on the identified current circumstances of the vehicle and therearound.

17. A program product according to claim 16, wherein the predetermined assist zone contains a traffic intersection, and the vehicle is running, or temporarily halting, on the one lane of the road within the predetermined assist zone toward the traffic intersection for changing a predetermined direction thereat while crossing an opposing lane of the road, and the drive-assist information to be provided to the driver of the vehicle is associated with conditions of the traffic intersection and therearound.

18. A program product according to claim 17, wherein the third means is designed to instruct a computer to identify the current circumstances of the vehicle and therearound by executing, based on the current position and behavior of the vehicle and on the current position and behavior of the at least one object around the vehicle, at least one of first to fourth determinations,

the first determination being whether there is a forward vehicle located on the one lane of the road in front of the vehicle,

the second determination being whether there is an oncoming vehicle that approaches the traffic intersection on the opposing lane in order to change a direction thereat toward the one lane of the road;

the third determination being whether there is a traffic jam in the opposing lane; and

the fourth determination being whether the vehicle is temporarily halting.

19. A program product according to claim 18, wherein the fourth means is designed to instruct a computer to determine, depending on the identified current circumstances of the vehicle and therearound:

whether to provide the drive-assist information to the driver of the vehicle; and

which provision modes of the drive-assist information to be given to the driver of the vehicle when it is determined to provide the drive-assist information to the driver of the vehicle.