Apparatus and method for activating occupant restraint device
First Claim
1. An apparatus for activating an occupant restraint device of a vehicle, said apparatus comprising:
- a roll condition detector for detecting a roll condition of the vehicle;
a lateral acceleration sensor for sensing a lateral acceleration of the vehicle in a width direction of the vehicle;
a trip-over determination unit determining whether an anticipated rollover of the vehicle has a pattern of trip-over in response to both the lateral acceleration and the roll condition of the vehicle;
a trip-over pattern recognition unit recognizing the pattern of trip-over based on the lateral acceleration of the vehicle, when the anticipated rollover of the vehicle has the pattern of trip-over;
a rollover determination criteria unit setting a rollover determination criterion for the vehicle depending on the recognized pattern of trip-over;
a rollover determination unit determining whether the vehicle will roll over based on both the roll condition of the vehicle and the rollover determination criterion for the vehicle; and
an activation unit activating the occupant restraint device of the vehicle depending on a determined result from said rollover determination unit, the determined result being indicative of that the vehicle will roll over.
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Accused Products
Abstract
An apparatus includes a roll condition detector detecting a roll condition of a vehicle and a lateral acceleration sensor sensing a lateral acceleration of the vehicle. The apparatus also includes a trip-over determination unit determining whether an anticipated rollover of the vehicle has a pattern of trip-over in response to the lateral acceleration and the roll condition of the vehicle, and a trip-over pattern recognition unit recognizing the pattern of trip-over based on the lateral acceleration of the vehicle. The apparatus further includes a rollover determination criteria unit setting a rollover determination criterion depending on the pattern of trip-over, a rollover determination unit determining whether the vehicle will roll over based on the roll condition of the vehicle and the rollover determination criterion, and an activation unit activating occupant restraint devices of the vehicle depending on a result of the rollover determination unit which indicates the vehicle will roll over.
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Citations
16 Claims
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1. An apparatus for activating an occupant restraint device of a vehicle, said apparatus comprising:
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a roll condition detector for detecting a roll condition of the vehicle;
a lateral acceleration sensor for sensing a lateral acceleration of the vehicle in a width direction of the vehicle;
a trip-over determination unit determining whether an anticipated rollover of the vehicle has a pattern of trip-over in response to both the lateral acceleration and the roll condition of the vehicle;
a trip-over pattern recognition unit recognizing the pattern of trip-over based on the lateral acceleration of the vehicle, when the anticipated rollover of the vehicle has the pattern of trip-over;
a rollover determination criteria unit setting a rollover determination criterion for the vehicle depending on the recognized pattern of trip-over;
a rollover determination unit determining whether the vehicle will roll over based on both the roll condition of the vehicle and the rollover determination criterion for the vehicle; and
an activation unit activating the occupant restraint device of the vehicle depending on a determined result from said rollover determination unit, the determined result being indicative of that the vehicle will roll over. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus for activating an occupant restraint device of a vehicle, said apparatus comprising:
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means for detecting a roll condition of the vehicle;
means for sensing a lateral acceleration of the vehicle in a width direction of the vehicle;
means for determining whether an anticipated rollover of the vehicle has a pattern of trip-over in response to both the lateral acceleration and the roll condition of the vehicle;
means for recognizing the pattern of trip-over based on the lateral acceleration of the vehicle, when the anticipated rollover of the vehicle has the pattern of trip-over;
means for setting a rollover determination criterion for the vehicle depending on the recognized pattern of trip-over;
rollover determination means for determining whether the vehicle will roll over based on both the roll condition of the vehicle and the rollover determination criterion for the vehicle; and
means for activating the occupant restraint device of the vehicle depending on a determined result from said rollover determination means, the determined result being indicative of that the vehicle will roll over.
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16. A method for activating an occupant restraint device of a vehicle, said method comprising the steps of:
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detecting a roll condition of the vehicle;
sensing a lateral acceleration of the vehicle in a width direction of the vehicle;
determining whether an anticipated rollover of the vehicle has a pattern of trip-over in response to both the lateral acceleration and the roll condition of the vehicle;
recognizing the pattern of trip-over based on the lateral acceleration of the vehicle, when the anticipated rollover of the vehicle has the pattern of trip-over;
setting a rollover determination criterion for the vehicle depending on the recognized pattern of trip-over;
determining whether the vehicle will roll over based on both the roll condition of the vehicle and the rollover determination criterion for the vehicle; and
activating the occupant restraint device of the vehicle depending on a rollover determination result indicative of that the vehicle will roll over.
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Specification