CONTROL UNIT FOR SETTING A DEVICE FOR THE ADAPTIVE REDUCTION OF CRASH ENERGY FOR A VEHICLE, DEVICE FOR THE ADAPTIVE REDUCTION OF CRASH ENERGY FOR A VEHICLE AND METHOD FOR SETTING A DEVICE FOR THE ADAPTIVE REDUCTION OF CRASH ENERGY FOR A VEHICLE

• US 20120296526A1
• Filed: 11/22/2010
• Published: 11/22/2012
• Est. Priority Date: 11/23/2009
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Freienstein, Heiko, Koenning, Markus
• Application Number:
  US13/510,752
• Publication Number:
  US 20120296526A1
• Time in Patent Office: Days
• US Class Current: 701/45
• CPC Class Codes: B60R 19/26 comprising yieldable mounting means B60R19/38 takes precedence; springs, shock absorbers, or means for damping vibrations per se F16F
• CPC Class Codes: B60R 2019/262 with means to adjust or regulate the amount of energy to be absorbed
• CPC Class Codes: B60R 2021/01252 Devices other than bags
• CPC Class Codes: B60R 21/0134 responsive to imminent contact with an obstacle , e.g. using radar systems
• CPC Class Codes: B60R 21/0136 responsive to actual contact with an obstacle , e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle monitoring crash strength in combination with passenger seat detection B60R21/01558

Abstract

A control unit for setting a device for the adaptive reduction of crash energy for a vehicle includes a first interface which provides a first signal characterizing an imminent or a beginning crash process, a computing element which, as a function of the first signal, generates a first control signal for setting the deformation behavior of at least one deformation element of the device for the adaptive reduction in the crash energy, and a second interface which provides a second signal characterizing at least one passenger parameter that changes as a function of the crash process. The computing element generates at least one second control signal as a function of the second signal for setting the deformation behavior during the crash process.

Claims

1-10. -10. (canceled)

11. A control unit for controlling a device for an adaptive reduction in crash energy for a vehicle, comprising:

a first interface which provides a first signal characterizing an imminent crash process for the vehicle;

a second interface which provides a second signal characterizing at least one passenger parameter which changes as a function of the crash process; and

a computing element which generates;

(i) a first control signal as a function of the first signal, wherein the first control signal sets a deformation behavior of at least one deformation element of the device for the adaptive reduction in crash energy; and

(ii) at least one second control signal as a function of the second signal for controlling the deformation behavior during the crash process.

12. The control unit as recited in claim 11, wherein:

the computing element determines a passenger forward displacement with the aid of the second signal;

the computing element determines, based on the passenger forward displacement, a beginning of a passenger restraint action of at least one passenger protection device; and

the at least one second control signal indicates a reduction in a rigidity with respect to the deformation behavior.

13. The control unit as recited in claim 12, wherein the at least one second control signal influences the rigidity with respect to the deformation behavior in such a way that a path of a vehicle passenger, as a result of the crash, from a beginning position of the passenger at the beginning of the crash process to the beginning of the passenger restraint action by the at least one passenger protective device, is maximally utilized in order to reduce stress on the vehicle passenger.

14. The control unit as recited in claim 12, wherein the computing element determines a crash severity with the aid of the second signal, and the computing element generates the at least one second control signal with the aid of the determined crash severity.

15. A device for the adaptive reduction of crash energy for a vehicle in a crash process, comprising:

at least one deformation element having deformation behavior which is set as a function of a first control signal for an adaptive reduction of the crash energy;

wherein the deformation behavior of the at least one deformation element is controlled during the crash process as a function of at least one second control signal generated as a function of at least one passenger parameter which changes as a function of the crash process.

16. The device as recited in claim 15, further comprising:

a control unit including;

a first interface which provides a first signal characterizing an imminent crash process for the vehicle;

a second interface which provides a second signal characterizing at least one passenger parameter which changes as a function of the crash process; and

a computing element which generates;

(i) the first control signal as a function of the first signal; and

(ii) the at least one second control signal as a function of the second signal.

17. The device as recited in claim 15, further comprising:

a first interface which provides a first signal characterizing an imminent crash process for the vehicle; and

a second interface which provides a second signal characterizing at least one passenger parameter which changes as a function of the crash process;

wherein the first control signal is generated as a function of the first signal, and the at least one second control signal is generated as a function of the second signal.

18. The device as recited in claim 15, wherein the at least one deformation element includes a first deformation element which is tapered for the reduction of the crash energy, and wherein an actuator system is provided for setting the tapering of the first deformation element as a function of at least one of the first and second control signals.

19. The device as recited in claim 18, wherein the at least one deformation element further includes a second deformation element which is situated in such a way that the second deformation element is compressed as a result of the deformation, and wherein at least one support element is provided for releasing the second deformation element for the deformation as a function of at least one of the first and second control signals.

20. A method for controlling a device for adaptive reduction of crash energy for a vehicle, comprising:

generating a first signal characterizing an imminent crash process for the vehicle;

generating a second signal characterizing at least one passenger parameter which changes as a function of the crash process;

generating, as a function of the first signal, a first control signal for setting a deformation behavior of at least one deformation element of the device for the adaptive reduction in the crash energy; and

generating, as a function of the second signal, at least one second control signal for controlling the deformation behavior during the crash process.