Device and method for triggering a vehicle occupant protection means, triggering system and vehicle

• US 9,421,931 B2
• Filed: 04/16/2012
• Issued: 08/23/2016
• Est. Priority Date: 06/14/2011
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Wellhoefer, Matthias Marcus
• Primary Examiner(s): Dager, Jonathan M
• Application Number:
  US14/123,913
• Publication Number:
  US 20140200773A1
• Time in Patent Office: 1,590 Days
• Field of Search: None
• US Class Current: 1/1
• 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 device for triggering an occupant protection means of a vehicle has an environment sensor for monitoring a surrounding environment of the vehicle, the environment sensor being adapted so as to output an environment signal in response to an impending collision of the vehicle. The device further has a triggering device that is adapted to acquire, within a peripheral area of the vehicle, a physical quantity indicating a collision that has taken place, and to produce a collision signal based on the physical quantity, and that is adapted to make a triggering decision for the occupant protection means as a function of the environment signal and of the collision signal.

Claims

1. A device for triggering an occupant protection arrangement of a vehicle, comprising:

an environment sensor for monitoring a surrounding environment of the vehicle, the environment sensor being adapted to output an environment signal to an output of the environment sensor in response to an impending collision of the vehicle;

a connecting line connected to the output of the environment sensor;

a triggering device having an input that is connected to the connecting line for reception of the environment signal, a sensor element adapted to acquire, within a peripheral area of the vehicle, a physical quantity indicating that a collision has taken place and, based on the physical quantity, to produce a collision signal, a logic unit for making a triggering decision for the occupant protection arrangement as a function of the environment signal and of the collision signal, and an output for outputting a triggering signal based on the triggering decision;

and

a control device to receive the triggering signal of the triggering device to activate the occupant protection arrangement in response to the triggering signal of the triggering device;

wherein the connecting line is a direct connection between the output of the environment sensor and the input of the triggering device,

wherein the environment sensor and the triggering device are situated adjacent to one another within the peripheral area of the vehicle, and

wherein the triggering signal of the triggering device is adapted to activate the occupant protection arrangement.

2. The device according to claim 1, wherein the logic unit of the triggering device is adapted to use the environment signal as plausibilization for the collision signal, and to make the triggering decision based on the collision signal.

3. The device according to claim 1, wherein the environment sensor is situated in a first housing, and the triggering device is situated in a separate, second housing, the first housing and the second housing being connected to one another via the connecting line.

4. The device according to claim 1, wherein the connecting line has a length of less than 1.25 m.

5. The device according to claim 1, wherein the sensor element of the triggering device is a pressure sensor or an acceleration sensor.

9. The device according to claim 1, wherein the logic unit of the triggering device is adapted to use the environment signal as plausibilization for the collision signal, and to make the triggering decision based on the collision signal, and wherein the environment sensor is situated in a first housing, and the triggering device is situated in a separate, second housing, the first housing and the second housing being connected to one another via the connecting line.

10. The device according to claim 9, wherein the connecting line has a length of less than 1.25 m.

11. The device according to claim 10, wherein the sensor element of the triggering device is a pressure sensor or an acceleration sensor.

12. The device according to claim 9, wherein the sensor element of the triggering device is a pressure sensor or an acceleration sensor.

6. A triggering system for an occupant protection arrangement of a vehicle, comprising:

a first device for triggering a first occupant protection arrangement;

a further device for triggering a further occupant protection arrangement; and

a control device that is adapted to receive the triggering signal of the first device and the triggering signal of the further device and to activate the first occupant protection arrangement in response to the triggering signal of the first device, and to activate the further occupant protection arrangement in response to the triggering signal of the further device;

wherein the first device and the further device each include;

an environment sensor for monitoring a surrounding environment of the vehicle, the environment sensor being adapted to output an environment signal to an output of the environment sensor in response to an impending collision of the vehicle;

a connecting line connected to the output of the environment sensor; and

a triggering device having an input that is connected to the connecting line for reception of the environment signal, a sensor element adapted to acquire, within a peripheral area of the vehicle, a physical quantity indicating that a collision has taken place and, based on the physical quantity, to produce a collision signal, a logic unit for making a triggering decision for the occupant protection arrangement as a function of the environment signal and of the collision signal, and an output for outputting a triggering signal based on the triggering decision;

wherein the environment sensor is adapted to be situated on an outer shell of the vehicle, and the triggering device is adapted to be situated on a peripheral structural element of the vehicle covered by the outer shell of the vehicle.

17. The triggering system according to claim 6, wherein the logic unit of the triggering device is adapted to use the environment signal as plausibilization for the collision signal, and to make the triggering decision based on the collision signal.

18. The triggering system according to claim 6, wherein the environment sensor is situated in a first housing, and the triggering device is situated in a separate, second housing, the first housing and the second housing being connected to one another via the connecting line.

19. The triggering system according to claim 6, wherein the sensor element of the triggering device is a pressure sensor or an acceleration sensor.

7. A vehicle, comprising:

a first occupant protection arrangement and a further occupant protection arrangement; and

a triggering system having a control device which is situated spatially separate from a first device and from a further device;

wherein the triggering system includes;

the first device for triggering the first occupant protection arrangement;

the further device for triggering the further occupant protection arrangement; and

the control device, which is adapted to receive the triggering signal of the first device and the triggering signal of the further device and to activate the first occupant protection arrangement in response to the triggering signal of the first device, and to activate the further occupant protection arrangement in response to the triggering signal of the further device;

wherein the first device and the further device each include;

an environment sensor for monitoring a surrounding environment of the vehicle, the environment sensor being adapted to output an environment signal to an output of the environment sensor in response to an impending collision of the vehicle;

a connecting line connected to the output of the environment sensor; and

a triggering device having an input that is connected to the connecting line for reception of the environment signal, a sensor element adapted to acquire, within a peripheral area of the vehicle, a physical quantity indicating that a collision has taken place and, based on the physical quantity, to produce a collision signal, a logic unit for making a triggering decision for the occupant protection arrangement as a function of the environment signal and of the collision signal, and an output for outputting a triggering signal based on the triggering decision;

wherein the environment sensor is adapted to be situated on an outer shell of the vehicle, and wherein the triggering device is adapted to be situated on a peripheral structural element of the vehicle covered by the outer shell of the vehicle.

13. The vehicle according to claim 7, wherein the logic unit of the triggering device is adapted to use the environment signal as plausibilization for the collision signal, and to make the triggering decision based on the collision signal.

14. The vehicle according to claim 7, wherein the environment sensor is situated in a first housing, and the triggering device is situated in a separate, second housing, the first housing and the second housing being connected to one another via the connecting line.

15. The vehicle according to claim 7, wherein the connecting line has a length of less than 1.25 m.

16. The vehicle according to claim 7, wherein the sensor element of the triggering device is a pressure sensor or an acceleration sensor.

8. A method for triggering an occupant protection arrangement of a vehicle, comprising:

using an environment sensor, monitoring a surrounding environment of the vehicle to output an environment signal in response to an impending collision of the vehicle;

using another sensor element situated on a triggering device acquiring a physical quantity indicating a collision that has taken place within a peripheral area of the vehicle, and producing a collision signal based on the physical quantity;

using the triggering device making a triggering decision for the occupant protection arrangement as a function of the environment signal and the collision signal;

outputting a triggering signal based on the triggering decision, wherein using a connecting line, the triggering device is directly connected to the environment sensor; and

receiving, using a control unit, the triggering signal of the triggering device to activate the occupant protection arrangement in response to the triggering signal of the triggering device;

wherein the environment sensor and the triggering device are situated adjacent to one another within the peripheral area of the vehicle, and

wherein the triggering signal of the triggering device is adapted to activate the occupant protection arrangement.