METHOD FOR IMPLEMENTING AN EMERGENCY BRAKING OPERATION

• US 20130018559A1
• Filed: 01/10/2011
• Published: 01/17/2013
• Est. Priority Date: 03/04/2010
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Wagner, Jochen, Epple, Stefan
• Application Number:
  US13/520,148
• Publication Number:
  US 20130018559A1
• Time in Patent Office: Days
• US Class Current: 701/70
• CPC Class Codes: B60T 2201/03 Brake assistants
• CPC Class Codes: B60T 8/3275 Systems with a braking assistant function, i.e. automatic full braking initiation in dependence of brake pedal velocity

Abstract

In a method for implementing an emergency braking operation with the aid of a brake assistance system in a vehicle, a brake actuation specified by the driver is amplified, the deactivation of the brake force amplification taking place in at least two stages.

Claims

1-10. -10. (canceled)

11. A method for implementing an emergency braking operation with the aid of a brake assistance system in a vehicle, in which a brake actuation specified by a driver is amplified by the brake assistance system, the method comprising:

deactivating a brake force amplification in at least two stages, wherein in a first stage, once a first state variable limit value has been reached, the brake force amplification is reduced and in a further stage, once a further state variable limit value has been reached, the brake force amplification is reduced down to zero.

12. The method as recited in claim 11, wherein the first state variable is one of a vehicle deceleration or a variable correlating with the vehicle deceleration.

13. The method as recited in claim 11, wherein once the further state variable limit value has been reached, the brake force amplification is reduced immediately.

14. The method as recited in claim 11, wherein the deactivation of the brake force amplification is implemented after the brake assistance system has been connected for a defined activation period.

15. The method as recited in claim 14, wherein the activation period is specified as a fixed threshold value.

16. The method as recited in claim 14, wherein the activation period is determined as a function of a vehicle speed.

17. The method as recited in claim 11, wherein the reduction of the brake force amplification is implemented in ramp-type manner.

18. The method as recited in claim 11, wherein a constant, additional deceleration is generated via the brake assistance system prior to deactivating the brake force amplification.

19. The method as recited in claim 11, wherein an emergency situation which activates the brake assistance system is detected without a pressure sensor.

20. A control device for implementing an emergency braking operation with the aid of a brake assistance system in a vehicle, in which brake actuation specified by a driver is amplified by the brake assistance system, the control device configured to deactivate a brake force amplification in at least two stages, wherein in a first stage, once a first state variable limit value has been reached, the brake force amplification is reduced and in a further stage, once a further state variable limit value has been reached, the brake force amplification is reduced down to zero.