Separation of abuse conditions and crash events to control occupant restraint devices
AssigneeRobert Bosch GmbH
InventorsJuergen Haering, Frank-Juergen Stuetzler
Life of this patent
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Abstract
A method of controlling a restraint device in a vehicle. The method comprises sensing an acceleration of the vehicle, analyzing the acceleration with at least two independent thresholds, and activating the restraint device when the analyzed acceleration exceeds the at least two independent thresholds.
Claims32
A method of controlling a restraint device in a vehicle, the method comprising:
- determining a condition of the vehicle, the determined condition having a value;
- retrieving a no-abuse condition threshold based on the value of the determined condition;
- retrieving a deployment condition threshold based on the value of the determined condition;
- and
- generating a restraint device activation signal when the value of the determined condition is above the abuse condition threshold and the deployment condition threshold.
A method of controlling a restraint device in a vehicle, the method comprising:
- sensing an acceleration of the vehicle;
- determining a vehicle signal based on the acceleration;
- retrieving a no-abuse condition threshold based on the acceleration and the vehicle signal;
- retrieving a deployment condition threshold based on the acceleration and the vehicle signal;
- comparing a value of the vehicle signal with the no-abuse condition threshold and the deployment condition threshold;
- and
- generating a deployment signal when the value of the determined condition is above the no-abuse condition threshold and the deployment condition threshold.
A method of controlling a restraint device in a vehicle, the method comprising:
- sensing an acceleration of the vehicle;
- analyzing the acceleration with at least two independent thresholds;
- and
- generating a restraint device activation signal when the analyzed acceleration exceeds the at least two independent thresholds.
An apparatus for controlling a restraint device in a vehicle, the apparatus comprising:
- a sensor configured to sense a vehicle condition having a value indicative of a vehicle acceleration;
- a comparator coupled to the sensor, and configured to compare the value indicative of the vehicle acceleration with at least two independent thresholds to produce a comparator output;
- and
- a signal generator coupled to the comparator, and configured to create an activation signal when the comparator output exceeds the at least two independent thresholds.
A vehicle comprising:
- a sensor coupled to the vehicle, and configured to sense a vehicle condition having a value indicative of vehicle acceleration;
- an electronic processing unit coupled to the sensor, having a comparator, the comparator comparing the value with a no-abuse condition threshold and an independent deployment condition threshold, the electronic processing unit generating a deployment signal when the value is above the no-abuse condition threshold and above the deployment condition threshold;
- and
- a restraint device coupled to the electronic processing unit, and configured to be deployed upon receiving the deployment signal.
Dependencies are inferred from the claim text.