Rollover determination apparatus for vehicles
First Claim
1. A rollover determination apparatus for vehicles comprising:
- a roll angular velocity detecting means for detecting, as a roll angular velocity, a rotational angular velocity of a vehicle about a longitudinal axis extending lengthwise through the vehicle;
an upward-or-downward-acceleration detecting means for detecting, as an upward or downward acceleration, an acceleration in an upward or downward direction of the vehicle;
an arithmetic processing means for carrying out arithmetic processing on both the roll angular velocity detected by said roll angular velocity detecting means and the upward or downward acceleration detected by said upward-or-downward-acceleration detecting means; and
a rollover occurrence determining means for determining whether the vehicle will roll over based on a processing result of said arithmetic processing means.
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Accused Products
Abstract
A rollover determination apparatus for vehicles includes a roll-angular-velocity sensor (1) for detecting, as a roll angular velocity, the rotational angular velocity of a vehicle about a longitudinal axis extending lengthwise through the vehicle, an upward-or-downward-acceleration sensor (2) for detecting, as an upward or downward acceleration, an acceleration in an upward or downward direction of the vehicle, an arithmetic processing unit (4a) for carrying out arithmetic processing on both the roll angular velocity detected by the roll-angular-velocity sensor (1) and the upward or downward acceleration detected by the upward-or-downward-acceleration sensor (2), and a rollover occurrence determining unit (4b) for determining whether the vehicle will roll over based on a processing result of the arithmetic processing unit (4a).
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Citations
11 Claims
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1. A rollover determination apparatus for vehicles comprising:
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a roll angular velocity detecting means for detecting, as a roll angular velocity, a rotational angular velocity of a vehicle about a longitudinal axis extending lengthwise through the vehicle;
an upward-or-downward-acceleration detecting means for detecting, as an upward or downward acceleration, an acceleration in an upward or downward direction of the vehicle;
an arithmetic processing means for carrying out arithmetic processing on both the roll angular velocity detected by said roll angular velocity detecting means and the upward or downward acceleration detected by said upward-or-downward-acceleration detecting means; and
a rollover occurrence determining means for determining whether the vehicle will roll over based on a processing result of said arithmetic processing means. - View Dependent Claims (2, 3)
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4. A rollover determination apparatus for vehicles comprising:
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a roll angular velocity detecting means for detecting, as a roll angular velocity, a rotational angular velocity of a vehicle about a longitudinal axis extending lengthwise through the vehicle;
a roll angle computing means for computing a roll angle of the vehicle based on the roll angular velocity detected by said roll angular velocity detecting means and a time which has elapsed since the detection result of said roll angular velocity detecting means satisfied a certain condition;
an arithmetic processing means for carrying out arithmetic processing on the roll angular velocity detected by said roll angular velocity detecting means and the roll angle computed by said roll angle computing means, a rollover occurrence determining means for determining whether said vehicle will roll over based on a processing result of said arithmetic processing means. - View Dependent Claims (5, 6)
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7. A rollover determination apparatus for vehicles comprising:
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a roll angular velocity detecting means for detecting, as a roll angular velocity, a rotational angular velocity of a vehicle about a longitudinal axis extending lengthwise through the vehicle;
an upward-or-downward-acceleration detecting means for detecting, as an upward or downward acceleration, an acceleration in an upward or downward direction of the vehicle;
a roll angle computing means for computing a roll angle of said vehicle based on the roll angular velocity detected by said roll angular velocity detecting means and a time which has elapsed since the roll angular velocity detected by said roll angular velocity detecting means satisfied a certain condition; and
a rollover occurrence determining means for determining whether the vehicle will roll over using at least two of a product and a sum of the roll angular velocity and the upward or downward acceleration and a product and a sum of the roll angular velocity and the roll angle. - View Dependent Claims (8, 9, 10, 11)
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Specification