Driver Assistance System in a Motor Vehicle

• US 20120123644A1
• Filed: 11/15/2011
• Published: 05/17/2012
• Est. Priority Date: 11/17/2010
• Status: Active Grant

• Current Assignee: Bayerische Motoren Werke AG
• Original Assignee: Bayerische Motoren Werke AG
• Inventors: Waldmann, Peter
• Granted Patent: US 9,566,958 B2
• Time in Patent Office: Days
• US Class Current: 701/45
• CPC Class Codes: B60T 7/042 by electrical means, e.g. using travel or force sensors
• CPC Class Codes: B60T 7/14 operated upon collapse of driver deadman's devices for electrically propelled vehicles B60L3/02
• CPC Class Codes: B60W 2540/12 Brake pedal position
• CPC Class Codes: B60W 2710/182 Brake pressure, e.g. of fluid or between pad and disc
• CPC Class Codes: B60W 2720/106 Longitudinal acceleration
• CPC Class Codes: B60W 30/12 Lane keeping

Abstract

A driver assistance system in a motor vehicle includes an electronically controllable braking system and a control unit assigned to this braking system and connected with an operating element also assigned to the braking system. The operating element, when correspondingly actuated, can initiate an automatic braking function in the form of a normal braking by use of the electronically controllable braking system independently of the actuation of the brake pedal. The control unit is operatively configured such that, when the operating element is continuously actuated beyond a predefined minimum duration, an emergency braking function can be initiated.

Claims

1. A driver assistance system in a motor vehicle, comprising:

an electronically controllable braking system;

an operating element assigned to the electronically controllable braking system;

a control unit operatively coupled to the electronically controllable braking system and the operating element, wherein when the operating element is actuated, an automatic braking function is initiated to carry out normal braking via the electronically controllable braking system independent of any actuation of a brake pedal; and

wherein the control unit is operatively configured such that, when the operating element is continuously actuated beyond a predefined minimum duration, an emergency braking function is initiated via the electronically controllable braking system.

2. The driver assistance system according to claim 1, wherein the emergency braking function comprises an intensified deceleration compared to the normal braking.

3. The driver assistance system according to claim 2, wherein the emergency braking function further comprises an automatic switching-on of an emergency flasher system.

4. The driver assistance system according to claim 1, wherein the emergency braking function comprises an automatic switching-on of the emergency flasher system.

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

a tracking system of the motor vehicle; and

wherein the emergency braking function comprises an activation of the tracking system.

6. The driver assistance system according to claim 3, further comprising:

a tracking system of the motor vehicle; and

wherein the emergency braking function comprises an activation of the tracking system.

7. The driver assistance system according to claim 1, wherein an intensified deceleration takes place as a function of a simultaneous actuation of a gas pedal of the motor vehicle.

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

an emergency stopping assistant; and

wherein the emergency braking function comprises an initiation of the emergency stopping assistant independent of a driver'"'"'s vital data.

9. The driver assistance system according to claim 1, wherein the emergency braking function further comprises an activation of a belt tightening function at a driver'"'"'s seat of the motor vehicle.

10. The driver assistance system according to claim 9, wherein the emergency braking function further comprises an adjustment of a driver'"'"'s seat of the motor vehicle into a rearward end position.

11. The driver assistance system according to claim 10, wherein the adjustment of the driver'"'"'s seat into the rearward end position occurs only when the operating element is actuated beyond a second predefined minimum duration.

12. The driver assistance system according to claim 1, wherein, only when the operating element is actuated beyond a second predefined minimum duration, a driver'"'"'s seat is moved into a rearward end position.

13. A method of operating a motor vehicle having an electronically controllable braking system and a control unit assigned to the braking system and coupled with an operating element also assigned to the braking system, the method comprising the acts of:

controlling the electronically controllable braking system independently of an actuation of a gas pedal of the motor vehicle to initiate an automatic braking function in the form of a normal braking when a first operating element signal is received; and

initiating an emergency braking function by way of the electronically controllable braking system independently of the actuation of the brake pedal when a second operating signal is received.

14. The method according to claim 13, wherein the second operating signal is defined by a continuous actuation of the operating element beyond a predefined minimum duration.

15. The method according to claim 13, wherein the act of initiating the emergency braking function is carried out by at least one of an intensified deceleration compared to the normal braking and an automatic switching-on of an emergency flasher system.

16. The method according to claim 13, wherein the initiating of the emergency braking function is further carried out by activating a tracking system of the motor vehicle.

17. The method according to claim 13, wherein the initiating of the emergency braking function is further carried out by at least one of activating a belt tightening function at a driver'"'"'s seat of the vehicle and an adjustment of the driver'"'"'s seat into a rearward end position.