Passive safety device
First Claim
1. A passive safety device comprising:
- an acceleration detecting unit that detects an acceleration of a vehicle;
a seat adjusting unit that expands a seat side of a seat in order to prevent an occupant sitting down the seat from moving, the seat adjusting unit including a left side support and a right side support that are adapted to be adjacent a left side and a right side, respectively, of the occupant sitting in the seat so that the left side support and the right side support face one another;
a safety belt adjusting unit that controls tension of a safety belt worn by the occupant; and
a control unit that controls an expansion of the seat side so as to decrease a distance between the left side support and the right side support and the tension of the safety belt through the seat adjusting unit and the safety belt adjusting unit, based on the detected acceleration of the vehicle, wherein when the direction of the acceleration working on the occupant due to inertia to move the occupant in the vehicle by the detected acceleration of the vehicle is a front-side direction opposite to a shoulder where the safety belt is put on, the seat adjusting unit largely expands the seat side larger in comparison with a direction other than the front-side direction.
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Accused Products
Abstract
There is provided a passive safety device which can prevent an occupant from moving when an acceleration that causes the occupant to move in a vehicle is working on the occupant, and which can improve the ride comfort. A passive safety device of the present invention comprises an acceleration detecting unit that detects an acceleration of a vehicle, a seat adjusting unit that expands a seat side of a seat in order to prevent an occupant sitting down the seat from moving, a safety belt adjusting unit that controls tension of a safety belt worn by the occupant, and a control unit that controls an expansion of the seat side and/or the tension of the safety belt through the seat adjusting unit and the safety belt adjusting unit, based on the detected acceleration of the vehicle.
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Citations
11 Claims
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1. A passive safety device comprising:
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an acceleration detecting unit that detects an acceleration of a vehicle; a seat adjusting unit that expands a seat side of a seat in order to prevent an occupant sitting down the seat from moving, the seat adjusting unit including a left side support and a right side support that are adapted to be adjacent a left side and a right side, respectively, of the occupant sitting in the seat so that the left side support and the right side support face one another; a safety belt adjusting unit that controls tension of a safety belt worn by the occupant; and a control unit that controls an expansion of the seat side so as to decrease a distance between the left side support and the right side support and the tension of the safety belt through the seat adjusting unit and the safety belt adjusting unit, based on the detected acceleration of the vehicle, wherein when the direction of the acceleration working on the occupant due to inertia to move the occupant in the vehicle by the detected acceleration of the vehicle is a front-side direction opposite to a shoulder where the safety belt is put on, the seat adjusting unit largely expands the seat side larger in comparison with a direction other than the front-side direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A passive safety device comprising:
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an acceleration detecting unit that detects an acceleration of a vehicle; a seat adjusting unit that expands a seat side of a seat in order to prevent an occupant sitting down the seat from moving; a safety belt adjusting unit that controls tension of a safety belt worn by the occupant; and a control unit that controls an expansion of the seat side and/or the tension of the safety belt through the seat adjusting unit and the safety belt adjusting unit, based on the detected acceleration of the vehicle, wherein when the direction of the acceleration working on the occupant due to inertia to move the occupant in the vehicle by the detected acceleration of the vehicle is a front-side direction opposite to a shoulder where the safety belt is put on, the seat adjusting unit largely expands the seat side larger in comparison with a direction other than the front-side direction.
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11. A passive safety device comprising:
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an acceleration detecting unit that detects an acceleration of a vehicle; a seat adjusting unit that expands a seat side of a seat in order to prevent an occupant sitting down the seat from moving; a safety belt adjusting unit that controls tension of a safety belt worn by the occupant; and a control unit that controls an expansion of the seat side and/or the tension of the safety belt through the seat adjusting unit and the safety belt adjusting unit, based on the detected acceleration of the vehicle, wherein when the direction of the acceleration working on the occupant due to inertia to move the occupant in the vehicle by the detected acceleration of the vehicle is a front-side direction opposite to a shoulder where the safety belt is put on, the control unit first terminates a control of the seat adjusting unit, and then terminates a control of the safety belt adjusting unit.
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Specification