초록 ▼

A control arrangement for a deployable airbag of a vehicle is provided with first and second airbag controllers for receiving a fault signal at the first airbag controller, and for producing at the second airbag controller a deployment command signal that indicates that the deployable airbag is to b

A control arrangement for a deployable airbag of a vehicle is provided with first and second airbag controllers for receiving a fault signal at the first airbag controller, and for producing at the second airbag controller a deployment command signal that indicates that the deployable airbag is to be deployed. The second airbag controller receives the deployment command signal, and is provided with a communication controller for receiving the deployment command signal, a squib for firing in response to the deployment command signal whereby the deployable airbag is deployed, and an energy transfer arrangement coupled to the communication controller and the squib for transferring a deployment energy to the squib in response to the deployment command signal. The squib is configured to require a predeterminable minimum quantum of energy to effect the firing thereof in response to the deployment command signal. A heater is coupled to an energy transfer arrangement for receiving a second electrical energy from the energy transfer arrangement and providing preheat to the squib in response to the second electrical energy, whereby the predeterminable minimum quantum of energy applied to effect firing of the squib is exceeded by a combination of the first electrical energy and the preheat energy, which is monitored and controlled.

대표청구항 ▼

[ What is claimed is:] [1.] A control arrangement for a deployable airbag of a vehicle, the vehicle having at least one fault sensor for providing a fault signal in response to the occurrence of a fault condition which would require the deployment of the deployable airbag, the control arrangement co

[ What is claimed is:] [1.] A control arrangement for a deployable airbag of a vehicle, the vehicle having at least one fault sensor for providing a fault signal in response to the occurrence of a fault condition which would require the deployment of the deployable airbag, the control arrangement comprising:an airbag electronic control unit for receiving at an input thereof a first signal responsive to the fault signal, and for producing at an output thereof in response to the first signal a deployment command signal that indicates that the deployable airbag is to be deployed;airbag controller means for receiving at an input thereof the deployment command signal, said airbag controller means being provided with;communication control means for receiving the deployment command signal;squib means for firing in response to the deployment command signal whereby the deployable airbag is deployed; andenergy control means coupled to the communication control means and said squib means for transferring a predetermined deployment energy to said squib means in response to the deployment command signal; andcommunication coupling means coupled at a first end thereof to said output of said airbag electronic control unit, and at a second end thereof to said input of said airbag controller means, for forming a propagation path for the deployment command signal.