Lateral rollover limit detection system
First Claim
1. A lateral rollover limit detection system, comprising:
- a structure, wherein a reference plane is supported with elastic forces on both sides of a reference axis;
an up-down direction means for detecting a reciprocating motion in an up-down direction of said reference plane; and
a calculating means for calculating, on the basis of a distance between said elastic forces supporting said structure on both sides of said reference axis, and the detection result by said up-down direction means, a limit center-of-gravity height beyond which said structure is rolled over in said direction of rotation as a lateral rollover limit height upon the center of gravity of said structure being on said reference axis,wherein said calculation means calculates a center-of-gravity height beyond which the force in said direction of rotation acting on the center of gravity of said structure resulting from said elastic force is not capable of providing a righting movement against the gravity, as said lateral rollover limit height,wherein said system further comprises a direction-of-rotation detection means for detecting a rotation around said reference axis of said reference plane, wherein said calculating means calculates said lateral rollover limit height for a center-of-gravity location on said reference plane of said structure, using an inclination angle of said reference plane in a standstill state determined from the detection result by said rotation-direction detection means, andwherein said calculation means determines the central angle for the oscillation around said reference axis from the detection result by said rotation-direction detection means as said inclination angle in a standstill state;
wherein said calculation means determines a vertical oscillation frequency in the up-down direction for said reference plane from the detection result by said up-down direction detection means, and on the basis of said vertical oscillation frequency and the central angle for said oscillation, calculate said lateral rollover limit height.
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Accused Products
Abstract
Provided is a lateral rollover limit detection system which can determine the lateral rollover danger of a structure for which the weight or the weight distribution has not been clarified. A placement board, springs, and detection object are provided as a structure in which the placement board is supported with springs on both sides of an oscillation central axis with an acceleration sensor for detecting the reciprocating motion in an up-down direction of the placement board, and an arithmetic part which, on the basis of the inclination angle of the placement board in a direction of rotation around the oscillation central axis with respect to the horizontal plane in a standstill state of the detection object and the detection result by the acceleration sensor, calculates a limit center-of-gravity height beyond which the detection object is rolled over for a center-of-gravity location on the placement board of the structure being provided.
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Citations
3 Claims
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1. A lateral rollover limit detection system, comprising:
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a structure, wherein a reference plane is supported with elastic forces on both sides of a reference axis; an up-down direction means for detecting a reciprocating motion in an up-down direction of said reference plane; and a calculating means for calculating, on the basis of a distance between said elastic forces supporting said structure on both sides of said reference axis, and the detection result by said up-down direction means, a limit center-of-gravity height beyond which said structure is rolled over in said direction of rotation as a lateral rollover limit height upon the center of gravity of said structure being on said reference axis, wherein said calculation means calculates a center-of-gravity height beyond which the force in said direction of rotation acting on the center of gravity of said structure resulting from said elastic force is not capable of providing a righting movement against the gravity, as said lateral rollover limit height, wherein said system further comprises a direction-of-rotation detection means for detecting a rotation around said reference axis of said reference plane, wherein said calculating means calculates said lateral rollover limit height for a center-of-gravity location on said reference plane of said structure, using an inclination angle of said reference plane in a standstill state determined from the detection result by said rotation-direction detection means, and wherein said calculation means determines the central angle for the oscillation around said reference axis from the detection result by said rotation-direction detection means as said inclination angle in a standstill state; wherein said calculation means determines a vertical oscillation frequency in the up-down direction for said reference plane from the detection result by said up-down direction detection means, and on the basis of said vertical oscillation frequency and the central angle for said oscillation, calculate said lateral rollover limit height. - View Dependent Claims (2, 3)
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Specification