DATA RECORDING APPARATUS FOR VEHICLE
First Claim
1. A data recording apparatus for a vehicle equipped with an occupant protection device, the data recording apparatus comprising:
- a main sensor configured to detect acceleration of the vehicle in event of a crash;
a safing sensor configured to detect the acceleration;
a temporary memory section configured to store a main calculation value and a safing calculation value for a predetermined period, the main calculation value calculated from a detection result of the main sensor, the safing calculation value calculated from a detection result of the safing sensor;
a control section configured to control activation and deactivation of the occupant protection device based on the main calculation value and the safing calculation value, the control section configured to determine whether a predetermined condition associated with the acceleration is satisfied, anda recording section configured to record the main calculation value upon determination of the control section that the condition is satisfied, the recording section recording the main calculation value obtained for a first period before the determination and recording the main calculation value obtained for a second period after the determination, whereinthe recording section records the safing calculation value obtained for the second period.
1 Assignment
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Accused Products
Abstract
A data recording apparatus for a vehicle equipped with an occupant protection device includes main and safing sensors for detecting acceleration of the vehicle, a temporary memory section for storing main and safing calculation values respectively calculated from detection results of the main and safing sensors, a control section for controlling the occupant protection device based on the main and safing calculation values and for determining whether a predetermined condition associated with the acceleration is satisfied, and a recording section for recording the main calculation value upon determination of the control section that the condition is satisfied. The recording section records the main calculation value for a first period before the determination and records the main calculation value for a second period after the determination. The recording section further records the safing calculation value for the second period.
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Citations
10 Claims
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1. A data recording apparatus for a vehicle equipped with an occupant protection device, the data recording apparatus comprising:
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a main sensor configured to detect acceleration of the vehicle in event of a crash; a safing sensor configured to detect the acceleration; a temporary memory section configured to store a main calculation value and a safing calculation value for a predetermined period, the main calculation value calculated from a detection result of the main sensor, the safing calculation value calculated from a detection result of the safing sensor; a control section configured to control activation and deactivation of the occupant protection device based on the main calculation value and the safing calculation value, the control section configured to determine whether a predetermined condition associated with the acceleration is satisfied, and a recording section configured to record the main calculation value upon determination of the control section that the condition is satisfied, the recording section recording the main calculation value obtained for a first period before the determination and recording the main calculation value obtained for a second period after the determination, wherein the recording section records the safing calculation value obtained for the second period.
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2. A data recording apparatus for a vehicle equipped with an occupant protection device, the data recording apparatus comprising:
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a main sensor configured to detect acceleration of the vehicle in event of a crash; a safing sensor configured to detect the acceleration; a temporary memory section configured to store a main calculation value and a safing calculation value for a predetermined period, the main calculation value calculated from a detection result of the main sensor, the safing calculation value calculated from a detection result of the safing sensor; a control section configured to control activation and deactivation of the occupant protection device based on the main calculation value and the safing calculation value, the control section configured to determine whether a predetermined condition associated with the acceleration is satisfied; a recording section configured to record the main calculation value upon determination of the control section that the condition is satisfied, the recording section recording the main calculation value obtained for a first period before the determination and recording the main calculation value obtained for a second period after the determination, and a comparing section configured to perform a comparison between the main calculation value after the determination and the safing calculation value after the determination, wherein the comparing section generates reliability information indicative of reliability of the main calculation value based on the comparison and causes the recording section to record the reliability information. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
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Specification