Vehicle seat
First Claim
Patent Images
1. A vehicle seat comprising:
- a seat body;
at least one load sensor arranged on the seat body for generating a load signal corresponding to a load applied to the seat body;
detecting means for detecting whether a seat belt is buckled and generating a detection signal; and
determining means for checking for a change in the load signal in response to the detection signal generated after the seat belt is buckled and determining that a child restraint system is mounted on the seat body upon detecting that a value of the load signal is more than a first predetermined value and has increased relative to a stored load signal value, and upon detecting that the value of the load signal is less than a second predetermined value.
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Abstract
A vehicle seat having a load sensor arranged on a seat body for generating a load signal corresponding to a load applied to the seat body, a detecting means for detecting whether a seat belt is buckled to the vehicle seat and generating a detection signal, and a determining means for comparing the load signal and a predetermined value in response to the detection signal when the seat belt is buckled and judging that an adult is not seated on the seat body when the load signal is less than the predetermined value. The seated condition of the vehicle seat is detected properly by the determination result of the determining means.
25 Citations
15 Claims
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1. A vehicle seat comprising:
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a seat body;
at least one load sensor arranged on the seat body for generating a load signal corresponding to a load applied to the seat body;
detecting means for detecting whether a seat belt is buckled and generating a detection signal; and
determining means for checking for a change in the load signal in response to the detection signal generated after the seat belt is buckled and determining that a child restraint system is mounted on the seat body upon detecting that a value of the load signal is more than a first predetermined value and has increased relative to a stored load signal value, and upon detecting that the value of the load signal is less than a second predetermined value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A vehicle seat comprising:
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a seat body;
at least one load sensor arranged on the seat body for generating a load signal corresponding to a load applied to the seat body;
detecting means for detecting whether a seat belt is buckled and generating a detection signal; and
a determining means for checking for a change in the load signal in response to the detection signal after the seat belt is buckled and determining that a child restraint system is mounted on the seat body upon detecting that a value of the load signal has increased relative to a stored load signal value and upon detecting that a decreasing rate in the value of the load signal is greater than a predetermined value. - View Dependent Claims (12, 13, 14)
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15. A load detector used in a vehicle seat comprising a seat body, at least one load sensor arranged on the seat body for generating a load signal corresponding to a load applied to the seat body, and detecting means for detecting whether a seat belt is buckled to the vehicle seat and generating a detection signal, the load detector comprising:
determining means for checking for a change in the load signal in response to the detection signal generated after the seat belt is buckled and determining that a child restraint system is mounted on the seat body upon detecting that a value of the load signal is more than a first predetermined value and has increased relative to a stored load signal value, and upon detecting that the value of the load signal is less than a second predetermined value.
Specification