Abstract: An airbag deployment controller and a passenger protection device including the same are provided to prevent erroneous (false) operation of an airbag due to noises and quickly deploy the airbag. The passenger protection device determines whether or not to drive an airbag unit, upon determining a detected value of a front acceleration sensor as being over a first collision threshold. Then, when determining to drive the airbag unit, the passenger protection device determines whether or not a detected value of a central acceleration sensor exceeds a second collision threshold. With the detected value being over the second threshold, it generates a driving signal and outputs it to the airbag unit in a final deployment control process. Thereby, the airbag unit operates an inflator to drive an airbag.

Abstract: An airbag deployment controller and a passenger protection device including the same are provided to prevent erroneous operation of an airbag due to noises and quickly deploy the airbag. The passenger protection device determines whether or not to drive an airbag unit, upon determining a detected value of a front acceleration sensor as being over a first collision threshold. Then, when determining to drive the airbag unit, the passenger protection device determines whether or not a detected value of a central acceleration sensor exceeds a second collision threshold. With the detected value being over the second threshold, it generates a driving signal and outputs it to the airbag unit in a final deployment control process. Thereby, the airbag unit operates an inflator to drive an airbag.

Abstract: A passenger protection device for a vehicle includes a satellite sensor which is disposed in a vehicle body, detects an impact applied to the vehicle body from an outside as a deceleration, and outputs data, and a control section which inflates an airbag arranged in a vehicle interior according to the data output from the satellite sensor. The control section and the satellite sensor are electrically connected by a connection line, the control section outputs an operation voltage of the satellite sensor via the connection line, the satellite sensor outputs the data to the control section via the connection line, and the control section includes a stabilization power source circuit which generates the operation voltage and a resistance provided between the stabilization power source circuit and a power source of the stabilization power source circuit.

Abstract: A vehicle data recorder includes plural vehicle state-detecting sensors for detecting a state of a vehicle at the time of running, a recording unit for temporarily recording detected values of the sensors, a recording/storing unit for recording and storing the detected values of the sensors; an airbag body, an airbag body controller configured to inflate the airbag body, a judging unit to judge that an event starts and to judge that the airbag body is to be developed and a control unit for performing (i) an recording operation that the detected values of said vehicle state detection sensors are recorded and taken into the recording unit at a predetermined cycle, (ii) a recording/storing operation that when the judging unit judges that the event starts, the detected values of the vehicle state-detecting sensors recorded in the recording unit are recorded and stored in said recording/storing unit, and (iii) an airbag controlling operation that when the judging unit judges that the airbag is to be developed, the