CN101439701A - Contact type broken circuit and short circuit two-state automobile passenger sensing method and sensor - Google Patents
Contact type broken circuit and short circuit two-state automobile passenger sensing method and sensor Download PDFInfo
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- CN101439701A CN101439701A CNA2008100517258A CN200810051725A CN101439701A CN 101439701 A CN101439701 A CN 101439701A CN A2008100517258 A CNA2008100517258 A CN A2008100517258A CN 200810051725 A CN200810051725 A CN 200810051725A CN 101439701 A CN101439701 A CN 101439701A
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Abstract
The invention discloses a contact open circuit and short circuit two-state automobile passenger perceiving method and a perceptron thereof; a clapboard is distributed with a plurality of through holes, the two surfaces of the clapboard are sequentially compounded with a wafer-shaped electric conduction composite layer structure composed of a carbon paste screen layer and conductive silver paste layer; a wafer is positioned at the position of the through holes to form a trigger switch; conductive silver paste at one side of the clapboard is divided into two groups of independent electrodes which are a first electrode and a second electrode that are connected with a vehicle control system; conductive silver paste at the other side of the clapboard is a third electrode; a bottom membrane supporting body and a pressure sensing membrane supporting body which are formed by insulation films are compounded outside the conductive silver paste layer to form a layered structure; when no ambient pressure exists, the first electrode and the second electrode of the perceptron are in an open circuit state; when external force is applied on the perceptron, the first electrode is connected with the second electrode by the third electrode to form a state of short circuit connection. The invention adopts two states of contact open circuit and short circuit to judge whether passengers exist or not, so as to overcome the defects of complicated circuit and inaccurate sensing information of the existing piezoelectric type crash sensor.
Description
Technical field:
The present invention discloses a kind of contact and opens circuit and short circuit bifurcation automobile passenger sensing method, and the perceptron that is adapted to this method also is provided simultaneously, and whether the passenger seat that is used for the machines motor-car is occupied, belongs to vehicle safety detector technical field.
Background technology
In the vehicle in modern times, seat occupancy sensor is used widely, so that whether detect passenger seat occupied.Can use subsequently about the information that passenger seat takies, so that control is to the expansion of one or more air bags that are associated with seat.Present most of sensor is to adopt the piezoelectric type crash sensor, and it is that electric charge mouth at common piezoelectric transducer connects built-in circuit, and the piezoelectric element of sensor is as the feedback element of op amp in the built-in circuit.Circuit complexity in this sensor, and easily go wrong, it is accurate that amplifying signal is difficult to, so sensor senses is not very accurate.
Summary of the invention
The present invention discloses a kind of contact and opens circuit and short circuit bifurcation automobile passenger sensing method, and the employing contact opens circuit and the short circuit two states is a switch, and serviceability is safe and reliable, and is economical and practical.
The present invention also provides a kind of contact to open circuit and short circuit bifurcation automobile passenger perceptron, has overcome existing piezoelectric type crash sensor circuit complexity, the inaccurate shortcoming of sensory information.
The technology of the present invention solution is as follows:
Occupant's perceptron is arranged in the seat, and whether it is subjected to ambient pressure to come sensing, and there are two states in occupant's perceptron, off state and short-circuit condition, and send signal to vehicle control system, and then judge the existence whether occupant is arranged on the seat;
Described perceptron constitutes dividing plate by the insulation adhesive tape, is distributed with some through holes on it; The compound successively conductive composite layer shape structure that is made of conductive carbon paste layer and conductive silver slurry layer in the two sides of dividing plate, conductive silver slurry layer and conductive carbon paste layer are respectively some contact shapes and constitute, and contact is positioned at the lead to the hole site place of dividing plate, constitute trigger switch; The conductive silver paste of dividing plate one side be two groups independently first, second electrode connect vehicle control system; The conductive silver paste of dividing plate opposite side is a third electrode; End film supporting body and pressure sensitivity film supporting body that insulation film constitutes are compounded in conductive silver slurry layer and constitute laminar texture outward;
The present invention is when using, perceptron is arranged between the covering and foaming of seat, on-off element is arranged on the seat left side with separating certain distance betwixt and the right side distributes, and no ambient pressure is done the time spent on perceptron, and first, second electrode of conductive silver slurry layer becomes off state; When external force acts on the perceptron, first, second electrode connects and composes the short circuit coupled condition by the third electrode of conductive silver slurry layer, realize the identification of signal by switching on and off two states, be that perceptron exists two states, off state and short-circuit condition, and send signal to vehicle control system, and then judge the existence whether occupant is arranged on the seat.
The present invention is with respect to the advantage that prior art has: the employing contact opens circuit and the short circuit two states is a switch, and serviceability is safe and reliable, and is economical and practical.Overcome existing piezoelectric type crash sensor circuit complexity, the inaccurate shortcoming of sensory information, guaranteed the safety of vehicle.
Description of drawings
Fig. 1 is a structure principle chart of the present invention;
Fig. 2 is a working state schematic representation of the present invention.
The specific embodiment
According to shown in Figure 1, the present invention constitutes laminar texture by end film supporting body 7 and the pressure sensitivity film supporting body 1 that dividing plate 4, conductive carbon paste layer 3,5 and conductive silver slurry layer 4,6 and insulation film constitute.Wherein, dividing plate 4 is made of the insulation adhesive tape, is distributed with some through holes 8 on it; The two sides of dividing plate 4 is compounded with the conductive composite layer shape structure of conductive carbon paste layer 3,5 and conductive silver slurry layer 2,6 formations successively, conductive silver slurry layer 2,6 and conductive carbon paste layer 3,5 are some contact cascaded structures, contact is positioned at the lead to the hole site place of dividing plate 4, constitutes trigger switch; Conductive silver paste 6 be two groups independently first, second electrode connect vehicle control system; Conductive silver paste 2 is a third electrode; End film supporting body 7 and pressure sensitivity film supporting body 1 that insulation film constitutes are compounded in conductive silver slurry layer 2,6 outer formation laminar textures.
According to shown in Figure 2, during no ambient pressure, first, second electrode of conductive silver slurry layer 6 becomes off state in the perceptron; When external force acted on the perceptron, first, second electrode that extruding makes conductive silver slurry layer 6 connected and composed the short circuit coupled condition by the third electrode of conductive silver slurry layer 2, connect the detection that vehicle control system realizes having or not in the car occupant.
Claims (2)
1, a kind of contact opens circuit and short circuit bifurcation automobile passenger sensing method, it is characterized in that: perceptron is arranged in the seat, whether it is subjected to ambient pressure to come sensing, there are two states in perceptron, off state and short-circuit condition, and send signal to vehicle control system, and then judge the existence whether occupant is arranged on the seat;
Described perceptron comprises: constitute dividing plate by the insulation adhesive tape, be distributed with some through holes on it; The compound successively conductive composite layer shape structure that is made of conductive carbon paste layer and conductive silver slurry layer in the two sides of dividing plate, conductive silver slurry layer and conductive carbon paste layer are respectively some contact shapes and constitute, and contact is positioned at the lead to the hole site place of dividing plate, constitute trigger switch; The conductive silver paste of dividing plate one side be two groups independently first, second electrode connect vehicle control system; The conductive silver paste of dividing plate opposite side is a third electrode; End film supporting body and pressure sensitivity film supporting body that insulation film constitutes are compounded in conductive silver slurry layer and constitute laminar texture outward; During no ambient pressure, first, second electrode of conductive silver slurry layer becomes off state; When external force acted on the perceptron, first, second electrode connected and composed the short circuit coupled condition by the conductive silver slurry layer third electrode.
2, the perceptron of the described cognitive method of claim 1 is characterized in that: dividing plate (4) is made of the insulation adhesive tape, is distributed with some through holes (8) on it; The two sides of dividing plate (4) is compounded with the conductive composite layer shape structure of conductive carbon paste layer (3), (5) and conductive silver slurry layer (2), (6) formation successively, conductive silver slurry layer (2), (6) are some contact cascaded structures with conductive carbon paste layer (3), (5), contact is positioned at through hole (8) position of dividing plate (4), constitutes trigger switch; Conductive silver paste (6) be two groups independently first, second electrode connect vehicle control system; Conductive silver paste (2) is a third electrode; End film supporting body (7) and pressure sensitivity film supporting body (1) that insulation film constitutes are compounded in conductive silver slurry layer (2), (6) outer formation laminar texture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100517258A CN101439701A (en) | 2008-12-31 | 2008-12-31 | Contact type broken circuit and short circuit two-state automobile passenger sensing method and sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100517258A CN101439701A (en) | 2008-12-31 | 2008-12-31 | Contact type broken circuit and short circuit two-state automobile passenger sensing method and sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101439701A true CN101439701A (en) | 2009-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100517258A Pending CN101439701A (en) | 2008-12-31 | 2008-12-31 | Contact type broken circuit and short circuit two-state automobile passenger sensing method and sensor |
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| CN (1) | CN101439701A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072539A (en) * | 2012-09-07 | 2013-05-01 | 华晨汽车集团控股有限公司 | Automotive seat cushion |
| CN103085748A (en) * | 2012-09-07 | 2013-05-08 | 华晨汽车集团控股有限公司 | Classification sensor for automobile seat cushion |
-
2008
- 2008-12-31 CN CNA2008100517258A patent/CN101439701A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072539A (en) * | 2012-09-07 | 2013-05-01 | 华晨汽车集团控股有限公司 | Automotive seat cushion |
| CN103085748A (en) * | 2012-09-07 | 2013-05-08 | 华晨汽车集团控股有限公司 | Classification sensor for automobile seat cushion |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090527 |