Advanced Driver Assistance System Having a Sensor Arrangement for Detecting the Distance of the Own Vehicle from a Foreign Object

• US 20120154135A1
• Filed: 04/06/2011
• Published: 06/21/2012
• Est. Priority Date: 12/17/2010
• Status: Active Grant

• Current Assignee: Bayerische Motoren Werke AG
• Original Assignee: Bayerische Motoren Werke AG
• Inventors: TRONNIER, Thorsten, Gresser, Klaus
• Granted Patent: US 8,717,156 B2
• Time in Patent Office: Days
• US Class Current: 340/435
• CPC Class Codes: B60W 2050/143 Alarm means
• CPC Class Codes: B60W 2554/801 Lateral distance
• CPC Class Codes: B60W 30/18163 Lane change; Overtaking manoeuvres
• CPC Class Codes: B60W 50/16 Tactile feedback to the driver, e.g. vibration or force feedback to the driver on the steering wheel or the accelerator pedal
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes

Abstract

An advanced driver assistance system for a vehicle is provided. The advanced driver assistance system includes a sensor arrangement for measuring the distance of a foreign object from the vehicle, and an electronic control unit for activating vehicle-internal actuators as a function of information obtained from a signal of the sensor arrangement. The sensor arrangement includes at least one sensor that is arranged on a longitudinal side of the vehicle and measures the distance of the foreign object from the longitudinal vehicle side. The control unit has a program module which emits a warning message to the driver during a forward drive by a connection to at least one of the actuators when the measured distance of the foreign object from the longitudinal vehicle side is smaller than a predefined safety distance.

Claims

1. An advanced driver assistance system for a vehicle, the advanced driver assistance system comprising:

a first sensor arrangement for measuring a distance of a first foreign object from the vehicle; and

an electronic control unit for activating vehicle-internal actuators as a function of information obtained from a signal of the first sensor arrangement, wherein;

the first sensor arrangement comprises at least one sensor which is arranged on a first longitudinal side of the vehicle and measures the distance of the first foreign object from the first longitudinal side, and

the control unit comprises a program module which emits a warning message to a driver of the vehicle during a forward drive by a connection to at least one of the actuators when the measured distance of the first foreign object from the first longitudinal side is smaller than a first predefined safety distance.

2. The advanced driver assistance system according to claim 1, wherein a first one of the actuators is a first control device that emits the warning message as a visual display in a heads-up display system of the vehicle.

3. The advanced driver assistance system according to claim 2, wherein the visual display represents a symbol for an accident risk.

4. The advanced driver assistance system according to claim 1, wherein a second one of the actuators is a second control device that emits a haptic warning message as a countersteering torque at a steering wheel of the vehicle.

5. The advanced driver assistance system according to claim 2, wherein a second one of the actuators is a second control device that emits a haptic warning message as a countersteering torque at a steering wheel of the vehicle.

6. The advanced driver assistance system according to claim 1, further comprising:

a second sensor arrangement for measuring a distance of a second foreign object from the vehicle, wherein the second sensor arrangement is arranged on a second longitudinal side of the vehicle that is different from the first longitudinal side of the vehicle, and

the control unit applies a countersteering torque at a steering wheel of the vehicle as the warning message and to enlarge the distance from the first foreign object with respect to the first longitudinal side of the vehicle only if the countersteering torque does not cause the distance from the second foreign object with respect to the second longitudinal side of the vehicle to become smaller than the first predefined safety distance.

7. The advanced driver assistance system according to claim 1, wherein the control unit applies a countersteering torque at a steering wheel of the vehicle as the warning message and to enlarge the distance from the first foreign object only if the countersteering torque does not cause the vehicle to carry out a lane change.

8. The advanced driver assistance system according to claim 5, wherein:

the control unit activates the first control device when the distance falls below the first predefined safety distance, and

the control unit activates the second control device when the distance falls below a second predefined safety distance, the second predefined safety distance being smaller than the first predefined safety distance.

9. The advanced driver assistance system according to claim 1, wherein the control unit causes an automatic braking intervention when the distance of the first foreign object from the first longitudinal vehicle side falls below the first predefined safety distance for a defined time period after the warning message is emitted.

10. A method of warning a driver of a vehicle, the method comprising the acts of:

measuring a distance of a first foreign object from a first longitudinal side of the vehicle; and

emitting a warning message to the driver of the vehicle during a forward drive when the measured distance of the first foreign object from the first longitudinal side is smaller than a first predefined safety distance.

11. The method according to claim 10, wherein the warning message is a visual display in a heads-up display system of the vehicle.

12. The method according to claim 11, wherein the visual display represents a symbol for an accident risk.

13. The method according to claim 10, further comprising the act of emitting a haptic warning message as a countersteering torque at a steering wheel of the vehicle.

14. The method according to claim 11, further comprising the act of emitting a haptic warning message as a countersteering torque at a steering wheel of the vehicle.

15. The method according to claim 10, further comprising the acts of:

measuring a distance of a second foreign object from a second longitudinal side of the vehicle, wherein the second longitudinal side of the vehicle that is different from the first longitudinal side of the vehicle, and

applying a countersteering torque at a steering wheel of the vehicle as the warning message and to enlarge the distance from the first foreign object with respect to the first longitudinal side of the vehicle only if the countersteering torque does not cause the distance from the second foreign object with respect to the second longitudinal side of the vehicle to become smaller than the first predefined safety distance.

16. The method according to claim 10, further comprising the act of applying a countersteering torque at a steering wheel of the vehicle as the warning message and to enlarge the distance from the first foreign object only if the countersteering torque does not cause the vehicle to carry out a lane change.

17. The method according to claim 14, wherein:

the warning message is emitted when the distance falls below the first predefined safety distance, and

the haptic warning message is emitted when the distance falls below a second predefined safety distance, the second predefined safety distance being smaller than the first predefined safety distance.

18. The method according to claim 10, further comprising the act of causing an automatic braking intervention when the distance of the first foreign object from the first longitudinal vehicle side falls below the first predefined safety distance for a defined time period after the warning message is emitted.