CN203909873U - Keyless door lock system for vehicles - Google Patents
Keyless door lock system for vehicles Download PDFInfo
- Publication number
- CN203909873U CN203909873U CN201420263678.4U CN201420263678U CN203909873U CN 203909873 U CN203909873 U CN 203909873U CN 201420263678 U CN201420263678 U CN 201420263678U CN 203909873 U CN203909873 U CN 203909873U
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- wire harness
- switch
- inductor
- low frequency
- capacitor
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- 239000003990 capacitor Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 abstract description 14
- 238000004891 communication Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
A keyless door lock system for vehicles comprises a central processing unit (1) and a door handle switch unit (2), and is characterized in that the central processing unit (1) is connected with the door handle switch unit (2) through a first wire harness (3), a second harness (4) and a third wire harness (5); the door handle switch unit (2) includes a resonance circuit (6) and a switch input circuit (7); the resonance circuit (6) includes an inductor (61) and a capacitor (62); the switch input circuit (7) includes a resistor (71) and a switch (72). The keyless door lock system for the vehicles provided by the utility model enables the connection of four wire harnesses in the conventional central processor to be replaced by the connection of the three wire harnesses, so that not only is the number of the wire harnesses directly connecting the central processor with a communication module reduced, but also the reliability for controlling is enhanced, the interference among the circuits is reduced, and the overload protection of the device and the use safety are improved.
Description
Technical field
The utility model relates to door lock for vehicle control system, specifically just relate to a kind of vehicle key-free door-locking system, reduce the connecting line between central processor unit and door handle device in vehicle key-free door-locking system, reduced the weight of vehicle, saved production cost.
Background technology
Along with economic fast development, automobile industry obtains fast development, the operation of automobile also more and more carrys out more hommization, especially the door lock control section of automobile, realize without key release blocking function, so-called refer to that without key release blocking function user just can release or their vehicle of locking in the situation that needn't operating key or remote controllers, this vehicle key-free release block sytem comprises that central processing unit and Intelligent key complete wireless authentication, then car door is with regard to release, user does not need that Intelligent key is carried out to any operation just can directly open car door, increase the convenience using.
Traditional is at least made up of several parts of central processing unit, low-frequency antenna and trigger sensor without key release block sytem, conventionally low-frequency antenna and trigger sensor combine and are arranged in door handle or near formation communication module, are connected with central processing unit by minimum 4 wire harness.The UNICOM realizing between central processing unit and communication module by low frequency signal finally realizes release and the locking under vehicle key-free state, but the type structure in, between central processing unit and communication module, be to be all connected by many connecting lines, increase curb weight, increased the expense of producing and keeping in repair.
Utility model content
The purpose of this utility model is too much for existing vehicle key-free release/block sytem rat tail, even if or the few but reliability of rat tail is strong, interference is larger, the technological deficiency of poor safety performance, a kind of vehicle key-free door-locking system is provided, 4 wire harness between traditional central processing unit are connected and become 3 wire harness connections, still can realize object noiseless, safe handling, reduce production cost.
Technical scheme
In order to realize above-mentioned technical purpose, the utility model designs a kind of vehicle key-free door-locking system, comprise central processor unit and door handle switch element, it is characterized in that: described central processor unit is connected with door handle switch element by the first wire harness, the second wire harness and the 3rd wire harness, described door handle switch element comprises resonant circuit and switch input circuit, described resonant circuit comprises inductor and capacitor, and described switch input circuit comprises resistance and switch;
Described inductor and capacitor's series, described resistance and switch series connection;
Described resistance one end and switch series connection, the other end is connected to front end or the rear end of inductor;
Described switch one end and resistance series connection, the other end is ground connection by the direct ground connection of the 3rd wire harness or after being connected with central processor unit;
Described inductor one end and capacitor's series, the other end is received on central processing unit by the first wire harness;
Connect with inductor in described capacitor one end, the other end is received central processing unit by the second wire harness.
Further, described central processor unit comprises microprocessor, low frequency driving chip, switch process circuit and pull-up resistor, described microprocessor is connected with low frequency driving chip by spi bus, low frequency driving chip is received door handle switch element by the first wire harness and the second wire harness, described switch process circuit one end is received First Line bundle, the other end is received microprocessor, and described pull-up resistor accesses the first wire harness.
Further, described resistance one end and switch series connection, the other end is connected to switch process circuit by the first wire harness;
Described switch one end and resistance series connection, ground connection when receiving low frequency driving chip by the 3rd wire harness after the other end and Parallel-connected Capacitor;
Described inductor one end and capacitor's series, the other end is received low frequency driving chip by the second wire harness;
Connect with inductor in described capacitor one end, ground connection when receiving low frequency driving chip by the 3rd wire harness after the other end and switch in parallel;
Described switch process circuit is directly connected to resistance one end by the first wire harness, and described pull-up resistor accesses the first wire harness.
Further, described switch one end and and resistance series connection, ground connection when receiving low frequency driving chip by the 3rd wire harness after the other end and inductor series connection;
Described capacitor one end is connected with inductor, and the other end is linked into low frequency driving chip by the second wire harness;
Described inductor one end is connected with capacitor, the ground connection when other end is received low frequency driving chip by the 3rd wire harness.
Further, described switch is pushbutton switch or electronic switch.
Beneficial effect
The vehicle key-free door-locking system that the utility model provides; 4 wire harness between traditional central processing unit are connected and become 3 wire harness connections; not only realize the object that reduces central processing unit and communication module tieline bundle; also increase the reliability of controlling; reduce the interference between circuit; increase the overload protection of self, improved the security using.
Brief description of the drawings
Accompanying drawing 1 is the annexation schematic diagram of the utility model the first embodiment.
Accompanying drawing 2 is annexation schematic diagram of the utility model the second embodiment.
Accompanying drawing 3 is annexation schematic diagram of the utility model the 3rd embodiment.
Accompanying drawing 4 is annexation schematic diagram of the utility model the 4th embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment 1
As shown in Figure 1, a kind of vehicle key-free door-locking system, comprise central processor unit 1 and door handle switch element 2, wherein, described central processor unit 1 is connected with door handle switch element 2 by the first wire harness 3, the second wire harness 4 and the 3rd wire harness 5, described door handle switch element 2 comprises resonant circuit 6 and switch input circuit 7, and described resonant circuit 6 comprises inductor 61 and capacitor 62, and described switch input circuit 7 comprises resistance 71 and switch 72;
Described inductor 61 and capacitor 62 are connected, and described resistance 71 and switch 72 are connected;
Described resistance 71 one end and switch 72 are connected, and the other end is connected to the front end of inductor 61;
Described switch 72 one end and resistance 71 are connected, and the other end is ground connection by the direct ground connection of the 3rd wire harness 5 or after being connected with central processor unit 1;
Connect with capacitor 62 in described inductor 61 one end, the other end is received on central processor unit 1 by the first wire harness 3;
Connect with inductor 61 in described capacitor 62 one end, the other end is received central processor unit 1 by the second wire harness 4.
Described central processor unit 1 comprises microprocessor 101, low frequency driving chip 102, switch process circuit 103 and pull-up resistor 104, described microprocessor 101 is connected with low frequency driving chip 102 by spi bus 105, low frequency driving chip 102 is received door handle switch element 2 by the first wire harness 3 and the second wire harness 4, described switch process circuit 103 1 ends are received First Line bundle 3, the other end is received microprocessor 101, and described pull-up resistor 104 accesses the first wire harness 3.
Described switch 72 is pushbutton switch or electronic switch.
Embodiment 2
As shown in Figure 2, described resistance 71 one end and switch 72 are connected, and the other end can also be connected to the rear end of inductor 61.
Embodiment 3
As shown in Figure 3, described resistance 71 one end and switch 72 are connected, and the other end can also be connected to switch process circuit 103 by the first wire harness 3 ';
Described switch 72 one end and resistance 71 are connected, ground connection when receiving low frequency driving chip 102 by the 3rd wire harness 5 ' after the other end and capacitor 62 is in parallel;
Connect with capacitor 62 in described inductor 61 one end, the other end is received low frequency driving chip 102 by the second wire harness 4 ';
Connect with inductor 61 in described capacitor 62 one end, ground connection when receiving low frequency driving chip 102 by the 3rd wire harness 5 ' after the other end and switch 72 is in parallel;
Described switch process circuit 103 is directly connected to resistance 71 one end by the first wire harness 3 ', and described pull-up resistor 104 accesses the first wire harness 3 '.
Embodiment 4
As shown in Figure 4, in the third embodiment, described switch 72 one end and resistance 71 are connected, ground connection when receiving low frequency driving chip 102 by the 3rd wire harness 5 ' after 61 series connection of the other end and inductor;
Described capacitor 62 one end are connected with inductor 61, and the other end is linked into low frequency driving chip 102 by the second wire harness 4 ';
Described inductor 61 one end are connected with capacitor 62, the ground connection when other end is received low frequency driving chip 102 by the 3rd wire harness 5 '.
The utility model course of work is in the radiation low frequency signal stage: microprocessor 101, by spi bus 105 and 102 communications of low frequency driving chip, carries out the configuration of parameter and data transmission to be sent is obtained to the status information such as chip itself and data transmission situation to low frequency driving chip 102 and from it.Low frequency driving chip 102 transmits low frequency drive signal by wire harness to door handle switch element 2, the resonant circuit 6 in door handle switch element 2 this low frequency signal to external radiation.
Switching signal acquisition phase: when microswitch is not pressed, switch process circuit 103 is connected to the controlled voltage VCC end of switch by pull-up resistor 104, and the AD mouth or the digital input port that are now transferred to microprocessor 101 are high level signal; In the time that pushbutton switch or electronic switch 72 are pressed or are triggered, the output signal of switch process circuit 103 is received on the ground by resistance 71, pushbutton switch or electronic switch 72.So it is low level signal that switch process circuit 103 is transferred to AD mouth or the digital input port of microprocessor 101.Just can distinguish pushbutton switch or whether electronic switch 72 is pressed or is triggered by the low and high level that the signal of AD mouth is carried out to digital-to-analog conversion or read digital input port.The vehicle key-free door-locking system that the utility model provides; 4 wire harness between traditional central processing unit are connected and become 3 wire harness connections; not only realize the object that reduces central processing unit and communication module tieline bundle; also increase the reliability of controlling; reduce the interference between circuit; increase the overload protection of self, improved the security using.
Claims (5)
1. a vehicle key-free door-locking system, comprise central processor unit (1) and door handle switch element (2), it is characterized in that: described central processor unit (1) is by the first wire harness (3), the second wire harness (4) and the 3rd wire harness (5) are connected with door handle switch element (2), described door handle switch element (2) comprises resonant circuit (6) and switch input circuit (7), described resonant circuit (6) comprises inductor (61) and capacitor (62), described switch input circuit (7) comprises resistance (71) and switch (72),
Described inductor (61) and capacitor (62) series connection, described resistance (71) and switch (72) series connection;
Described resistance (71) one end and switch (72) series connection, the other end is connected to front end or the rear end of inductor (61);
Described switch (72) one end and resistance (71) series connection, the other end is ground connection by the direct ground connection of the 3rd wire harness (5) or after being connected with central processor unit (1);
Connect with capacitor (62) in described inductor (61) one end, the other end is received on central processor unit (1) by the first wire harness (3);
Connect with inductor (61) in described capacitor (62) one end, the other end is received central processor unit (1) by the second wire harness (4).
2. a kind of vehicle key-free door-locking system as claimed in claim 1, it is characterized in that: described central processor unit (1) comprises microprocessor (101), low frequency driving chip (102), switch process circuit (103) and pull-up resistor (104), described microprocessor (101) is connected with low frequency driving chip (102) by spi bus (105), low frequency driving chip (102) is received door handle switch element (2) by the first wire harness (3) and the second wire harness (4), described switch process circuit (103) one ends are received First Line bundle (3), the other end is received microprocessor (101), described pull-up resistor (104) access the first wire harness (3).
3. a kind of vehicle key-free door-locking system as claimed in claim 2, it is characterized in that: described resistance (71) one end and switch (72) series connection, the other end is connected to switch process circuit (103) by the first wire harness (3 ');
Described switch (72) one end and resistance (71) series connection, ground connection when receiving low frequency driving chip (102) by the 3rd wire harness (5 ') after the other end and capacitor (62) are in parallel;
Connect with capacitor (62) in described inductor (61) one end, the other end is received low frequency driving chip (102) by the second wire harness (4 ');
Connect with inductor (61) in described capacitor (62) one end, ground connection when receiving low frequency driving chip (102) by the 3rd wire harness (5 ') after the other end and switch (72) are in parallel;
Described switch process circuit (103) is directly connected to resistance (71) one end by the first wire harness (3 '), described pull-up resistor (104) access the first wire harness (3 ').
4. a kind of vehicle key-free door-locking system as claimed in claim 2, it is characterized in that: described switch (72) one end and resistance (71) series connection, ground connection when receiving low frequency driving chip (102) by the 3rd wire harness (5 ') after the other end and inductor (61) series connection;
Described capacitor (62) one end is connected with inductor (61), and the other end is linked into low frequency driving chip (102) by the second wire harness (4 ');
Described inductor (61) one end is connected with capacitor (62), the ground connection when other end is received low frequency driving chip (102) by the 3rd wire harness (5 ').
5. a kind of vehicle key-free door-locking system as claimed in claim 1 or 2, is characterized in that: described switch (72) is pushbutton switch or electronic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263678.4U CN203909873U (en) | 2014-05-21 | 2014-05-21 | Keyless door lock system for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263678.4U CN203909873U (en) | 2014-05-21 | 2014-05-21 | Keyless door lock system for vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203909873U true CN203909873U (en) | 2014-10-29 |
Family
ID=51784128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420263678.4U Withdrawn - After Issue CN203909873U (en) | 2014-05-21 | 2014-05-21 | Keyless door lock system for vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203909873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971434A (en) * | 2014-05-21 | 2014-08-06 | 华域汽车系统股份有限公司 | Keyless vehicle door locking system |
-
2014
- 2014-05-21 CN CN201420263678.4U patent/CN203909873U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971434A (en) * | 2014-05-21 | 2014-08-06 | 华域汽车系统股份有限公司 | Keyless vehicle door locking system |
| CN103971434B (en) * | 2014-05-21 | 2016-08-17 | 华域汽车系统股份有限公司 | Vehicle key-free door-locking system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |