Recording system for vehicle occupant protecting apparatus
First Claim
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1. A recording system for a vehicle occupant protecting apparatus comprising:
- a collision sensor for detecting a collision of the vehicle to produce a collision signal;
an occupant protecting apparatus ignition circuit connected to said collision sensor for receiving said collision signal to actuate, in response thereto, said occupant protecting apparatus;
a diagnostic circuit connected to said collision sensor and said ignition circuit, said diagnostic circuit, being responsive to any of;
1. the occurrence of a fault in said collision sensor,2. the occurrence of a fault in said ignition circuit, and3. operation of said ignition circuit for actuating the occupant protecting apparatus, to produce a diagnostic signal;
driving condition indicating means for producing a signal indicative of a driving condition of said vehicle; and
a recording circuit connected to said collision sensor, the diagnostic circuit and said driving condition indicating means, said recording circuit being responsive to the occurrence of the diagnostic signal to record said signal indicative of the driving condition and any collision signal produced by said collision sensor.
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Abstract
A recording system for a vehicle occupant protecting apparatus wherein operating conditions of the various components of the occupant protecting apparatus are recorded, when the occupant protecting apparatus such as an air bag properly comes into operation, when conditions are detected which require the operation of the occupant protecting apparatus although its actual operation does not take place or when any fault occurs in the occupant protecting apparatus, thereby to know the various conditions and circumstances which existed during the collision or under the fault condition.
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Citations
9 Claims
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1. A recording system for a vehicle occupant protecting apparatus comprising:
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a collision sensor for detecting a collision of the vehicle to produce a collision signal; an occupant protecting apparatus ignition circuit connected to said collision sensor for receiving said collision signal to actuate, in response thereto, said occupant protecting apparatus; a diagnostic circuit connected to said collision sensor and said ignition circuit, said diagnostic circuit, being responsive to any of; 1. the occurrence of a fault in said collision sensor, 2. the occurrence of a fault in said ignition circuit, and 3. operation of said ignition circuit for actuating the occupant protecting apparatus, to produce a diagnostic signal; driving condition indicating means for producing a signal indicative of a driving condition of said vehicle; and a recording circuit connected to said collision sensor, the diagnostic circuit and said driving condition indicating means, said recording circuit being responsive to the occurrence of the diagnostic signal to record said signal indicative of the driving condition and any collision signal produced by said collision sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification