Deployment of vehicle safety restraint via wireless trigger signal

• US 7,505,754 B2
• Filed: 06/04/2003
• Issued: 03/17/2009
• Est. Priority Date: 12/19/2002
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Kazmierczak, Harald, Tschentscher, Harald, Mattes, Bernhard, Schumacher, Hartmut
• Primary Examiner(s): Nguyen; Duc
• Assistant Examiner(s): Nguyen; Hai V
• Application Number:
  US10/539,916
• Publication Number:
  US 20060148445A1
• Time in Patent Office: 2,113 Days
• Field of Search: 280/735
• US Class Current: 455/404.1
• CPC Class Codes: B60R 16/027 between relatively movable parts of the vehicle, e.g. between steering wheel and column devices for measuring, signalling or controlling tyre pressure or temperature specially adapted for mounting on vehicles B60C23/00
• 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 device for wireless transmission of a deployment signal. The device includes two processors on both the primary side and the secondary side, which exchange data with one another. A high degree of redundancy is thereby achieved. The wireless transmission is preferably carried out as inductive transmission.

Claims

1. A device for wireless transmission of a deployment signal, the device being configured to transmit the deployment signal via a first path and a redundance signal to the deployment signal via a second path, the device comprising:

a primary side including two processors configured to exchange data with one another;

a secondary side in communication with the primary side, the secondary side including two processors configured to exchange data with one another; and

wherein the primary side further includes a first transceiver configured for wireless transmission connected to the two processors of the primary side, and wherein the secondary side includes a first transceiver block, the first transceiver block including a first of the two processors of the secondary side, the first transceiver block being connected to a first terminal of a triggering element, and wherein the secondary side further includes a second transceiver block, the second transceiver block including a second one of the two processors of the secondary side, the second transceiver block being connected to a second terminal of the triggering element.

2. The device as recited in claim 1, wherein the primary side is situated in a steering column and the secondary side is situated in a steering wheel.

3. The device as recited in claim 1, wherein the primary side is situated in a vehicle chassis and the secondary side is situated in a vehicle seat.

4. The device as recited in claim 1, wherein the wireless transmission is configured as an inductive transmission.

5. The device as recited in claim 1, wherein the first transceiver block is configured to receive the redundance signal via a first winding, and the second transceiver block is configured to receive the deployment signal via a second winding.

6. The device as recited in claim 5, wherein the first winding is assigned to a power transmitter, and the second winding is assigned to a data transmitter.

7. The device as recited in claim 1, wherein the first transceiver block is configured in such a way that the first transceiver block generates a supply voltage and closes a high-side switch when deployment occurs, and the second transceiver block is configured in such a way that the second transceiver block generates and monitors a power reserve and closes a low-side switch when deployment occurs.