Operating system and process for safety devices in a vehicle
OwnerOlaf Muellerinventor
Life of this patent
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Abstract
An operating system for a safety device in a vehicle including a driving element housed in a guide housing and coupled to a safety device for its operation. A gas generating device generates a gas pressure in the guide housing. A starting device triggers the generating device to generate gas pressure in two successive, but partially overlapping driving stages. A load limiter coacts with the driving element to insure a predetermined yielding performance of the safety device.
Claims25
Operating system for safety devices in a vehicle, comprising:
- a guide housing,
- at least one driving piston housed therein which is coupled to at least one safety device for operation,
- an operating path in the guide housing for the driving element,
- at least one gas pressure generating device for generating a gas pressure in a pressure receiving space in the guide housing, and
- starting devices for triggering the gas pressure generating device,
- wherein the at least one driving piston is capable of being acted upon by generation of a gas pressure in the pressure receiving space for movement from an inoperative position along the operating path,
- wherein the gas pressure generating device contains at least two successively triggerable driving stages and a triggering control by which the generation of the gas pressure by at least two successive driving stages takes place sequentially with a predetermined delay but in a partially superimposed manner, and
- a load limiting device coacting with the driving piston which ensures a predetermined yielding performance of the safety device to which the driving piston is coupled.
Operating system according to claim wherein the mechanical retarding and triggering device contains an ignition triggering mechanism which can be operated by a triggered first driving stage, and an igniter for the driving stage which follows the triggered driving stage, and wherein a delay between triggerings of two successive driving stages is definable by a time duration of a sequence of the ignition triggering mechanism and ignition performance of the igniter.
Operating process for safety devices in a vehicle comprising the steps of:
- providing a pressure receiving space in which gas pressure acts along an operating path upon at least one driving piston coupled to at least one safety device, and
- generating gas pressure in the pressure receiving space by at least two successive and partially superimposed gas pressure surges generated by triggering first and second successive individual driving stages of the gas pressure generating devices to operate the at least one safety device via movement of said piston.
Dependencies are inferred from the claim text.