초록 ▼

An occupant detection system comprises an electric field sensor in the seat bottom of a vehicle seat for discriminating objects on the seat, and a range/proximity sensor for sensing the proximity of an occupant's torso relative to the seat back of a vehicle seat. The electric field sensor discrimina

An occupant detection system comprises an electric field sensor in the seat bottom of a vehicle seat for discriminating objects on the seat, and a range/proximity sensor for sensing the proximity of an occupant's torso relative to the seat back of a vehicle seat. The electric field sensor discriminates normally seated occupants from other seating conditions, and disables a restraint actuator unless a normally seated occupant is present. The range/proximity sensor disables the restraint actuator if an occupant has not been proximate to the seat back for a period of time greater than a threshold.

대표청구항 ▼

An occupant detection system comprises an electric field sensor in the seat bottom of a vehicle seat for discriminating objects on the seat, and a range/proximity sensor for sensing the proximity of an occupant's torso relative to the seat back of a vehicle seat. The electric field sensor discrimina

An occupant detection system comprises an electric field sensor in the seat bottom of a vehicle seat for discriminating objects on the seat, and a range/proximity sensor for sensing the proximity of an occupant's torso relative to the seat back of a vehicle seat. The electric field sensor discriminates normally seated occupants from other seating conditions, and disables a restraint actuator unless a normally seated occupant is present. The range/proximity sensor disables the restraint actuator if an occupant has not been proximate to the seat back for a period of time greater than a threshold. 08, EP; 0207272, EP; 0213299, EP; 0210843, EP; 0256150, EP; 0351701, EP; 0355340, EP; 0383391, EP; 0430676, EP; 0410679, EP; 0413547, EP; 0444942, EP; 0444943, EP; 0451993, EP; 0456060, EP; 0460763, EP; 0473109, EP; 0476897, EP; 0526290, EP; 0547684, EP; 0556009, EP; 0579298, EP; 0928959, EP; 1 568 487, FR; 2 246 506, FR; 2 455 733, FR; 1 069 435, GB; 1 305 885, GB; 2034478, GB; 2 071 853, GB; 2 168 160, GB; 1974-038911, JP; 1985-097676, JP; 1987-070271, JP; 60-195546, JP; 1987-104131, JP; 1987-167426, JP; 1987-259475, JP; 1988-285195, JP; 1988-292032, JP; 91-311556, JP; 1990-148768, JP; 1990-249936, JP; 1991-239940, JP; 2852593, JP; 1993-107254, JP; 1993-231975, JP; 1994-021741, JP; 1994-265428, JP; 1994-300650, JP; 0283761, JP; 1999-006780, JP; 463643, SU; 736216, SU; 1398825, SU; 1597627, SU; 1629763, SU; WO83/000385, WO; WO85/002677, WO; WO87/007947, WO; WO87/007948, WO; WO93/022644, WO; WO96/016418, WO; WO96/027123, WO; WO/99/46570, WO; WO99/046570, WO contact detection sensor as claimed in claim 4, wherein both ends of the each plate spring are fixed to said holder. 6. The contact detection sensor as claimed in claim 4, wherein one end of the each plate spring is fixed to said holder. 7. The contact detection sensor as claimed in claim 4, wherein the plate spring is formed of same materials as said holder, and the plate spring and said holder are formed integrally. 8. The contact detection sensor as claimed in claim 4, wherein Young's modulus of the material of the plate spring is less than 110000N/mm2. 9. The contact detection sensor as claimed in claim 4, wherein said vibrator is fixed on the one face of the support portion of said holder and said detector is fixed on the other face of the support portion of said holder. 10. The contact detection sensor as claimed in claim 4, wherein said vibrator is implemented as one solid-state component, opposite edge portions on one face of the solid-state component is attached to the plate spring of said holder and said stylus is fixed on the other face of the solid-state component, and wherein said detector is disposed between said contact portion of said stylus and a fixed portion of said stylus and said vibrator on peripheral face of said stylus. 11. A contact detection sensor comprising: a column-shaped stylus provided with a contact portion to be contact with a workpiece at a tip end thereof; a vibrator for vibrating said stylus in an axial direction of said stylus, said vibrator including a vibration electrode for inputting a vibration signal; a detector for detecting a contact of the contact portion with the workpiece from a change in vibration state of said stylus occurring when the contact portion and the workpiece come in contact with each other, said detector including a detection electrode for outputting a detection signal; a holder provided with a support portion, for supporting said stylus, said vibrator and said detector with the support portion, wherein said vibrator and said detector are implemented as one solid-state component, the vibration electrode and the detection electrode are formed on one face of the solid-state component so that they sandwich a strip-shaped electrical insulation area, a ground electrode is formed on the other face of the solid-state component, wherein said stylus is fixed to the electrical insulation area, and wherein the support portion of said holder is fixed to the other face of the solid-state component. 12. The contact detection sensor as claimed in claim 11, wherein the support portion of said holder having a plurality of plate springs disposed substantially orthogonal with said stylus and parallel to each other, said plate springs being deformable in the axis direction of said stylus, and opposite edge portions on the other face of said solid-state component are fixed to the plate springs. 13. The contact detection sensor as claimed in claim 11, wherein the solid-state component includes a solid-state component, a magnetostrictive element, or a configuration-memory element. 14. A contact detection sensor comprising: a column-shaped stylus provided with a contact portion to be contact with a workpiece at a tip end thereof; a vibrator for vibrating said stylus in an axial direction of said stylus, said vibration including a vibration electrode for inputting a vibration signal a; a detector for detecting a contact of the contact portion with the workpiece from a change in vibration state of said stylus occurring when the contact portion and the workpiece come in contact with each other, said detector including a detection electrode for outputting a detection signal; a holder provided with a support portion, for supporting said stylus, said vibrator and said detector with the support portion, wherein said vibrator and said detector are implemented as one solid-state component, the vibration electrode and the detection electrode are formed on one face of the so lid-state component so that they sandwich a strip-shaped electrical insulation area and a ground electrode is formed on the other face of the solid-state component, and wherein said stylus is fixed to the other face of the solid-state component corresponding to the electrical insulation area, and wherein the support portion of said holder is fixed to the other face of the solid-state component and is formed with a notch part for preventing said stylus being in contact with the support portion of said holder. 15. The contact detection sensor as claimed in claim 14, wherein the support portion of said holder has a plurality of plate springs disposed substantially orthogonal with said stylus and parallel to each other, said plate springs being deformable in the axis direction of said stylus, and opposite edge portions on the other face of said solid-state component are fixed to the plate springs. 16. The contact detection sensor as claimed in claim 14, wherein the solid-state component includes a solid-state component, a magnetostrictive element, or a configuration-memory element. 17. The contact detection sensor as claimed in claim 15, wherein the solid-state component includes a solid-state component, a magnetostrictive element, or a configuration-memory element.