Control device and method for triggering personal protection means for a vehicle

• US 8,489,285 B2
• Filed: 09/26/2008
• Issued: 07/16/2013
• Est. Priority Date: 11/19/2007
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Jousse, Alain
• Primary Examiner(s): NGUYEN, TAN QUANG
• Application Number:
  US12/740,237
• Publication Number:
  US 20100262340A1
• Time in Patent Office: 1,754 Days
• Field of Search: 361/249, 361/251, 701/45, 701/46, 280/735, 180/274
• US Class Current: 701/45
• CPC Class Codes: B60R 21/017 including arrangements for providing electric power to safety arrangements or their actuating means, e.g. to pyrotechnic fuses or electro-mechanic valves

Abstract

A control device and a method for triggering personal protection arrangement for a vehicle are provided, an energy reserve supplying electrical energy for the triggering. A control circuit is provided, which, as a function of the personal protection arrangement to be triggered, forms from the electrical energy at least one individual firing pulse for triggering the individual personal protection arrangement, with respect to a first firing pulse amplitude and a first firing pulse duration.

Claims

1. A control device for triggering a personal protection arrangement for a vehicle, comprising:

an energy reserve, which provides electrical energy for the triggering; and

a control circuit;

wherein;

the control circuit;

forms, from the electrical energy, at least one firing pulse for the triggering of the personal protection arrangement, a first firing pulse amplitude and a first firing pulse duration of the at least one firing pulse being dependent on the personal protection arrangement to be triggered;

in a first time interval, specifies the at least one firing pulse at a second firing pulse amplitude and a second firing pulse duration; and

in a second time interval following the first time interval, specifies the at least one firing pulse at a third firing pulse amplitude and a third firing pulse duration;

the second firing pulse amplitude is greater than the third firing pulse amplitude;

the second firing pulse duration is shorter than the third firing pulse duration;

the first time interval is used for triggering a first personal protection arrangement; and

the second time interval is used for triggering a second personal protection arrangement.

2. The control device of claim 1, wherein the control circuit includes data that specify the first time interval and the second time interval.

3. The control device of claim 2, wherein the data assign the first time interval to the first personal protection arrangement and the second time interval to the second personal protection arrangement.

4. The control device of claim 3, wherein the data are permanently stored or are generated as a function of a triggering decision.

5. A method for triggering a personal protection arrangement for a vehicle, the method comprising:

providing an energy reserve for providing electrical energy for the triggering; and

using a control circuit to form, from the electrical energy, at least one firing pulse for the triggering of the personal protection arrangement, a first firing pulse amplitude and a first firing pulse duration of the at least one firing pulse being dependent on the personal protection arrangement to be triggered;

wherein;

the control circuit specifies the at least one firing pulse in a first time interval at a second firing pulse amplitude and a second firing pulse duration, and, in a second time interval following the first time interval, at a third firing pulse amplitude and a third firing pulse duration;

the second firing pulse amplitude is greater than the third firing pulse amplitude;

the second firing pulse duration is shorter than the third firing pulse duration;

the first time interval is used to control a first personal protection arrangement; and

the second time interval is used to control a second personal protection arrangement.

6. The method of claim 5, wherein the first time interval and the second time interval are specified by data in the control circuit.

7. The method of claim 6, wherein the data assign the first time interval to the first personal protection arrangement, and the second time interval to the second personal protection arrangement.

8. The method of claim 6, wherein the data are permanently stored or are generated as a function of a triggering decision.