CN201829385U - Press switch with diagnosis function and press key switch device - Google Patents
Press switch with diagnosis function and press key switch device Download PDFInfo
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- CN201829385U CN201829385U CN2010202622603U CN201020262260U CN201829385U CN 201829385 U CN201829385 U CN 201829385U CN 2010202622603 U CN2010202622603 U CN 2010202622603U CN 201020262260 U CN201020262260 U CN 201020262260U CN 201829385 U CN201829385 U CN 201829385U
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- key switch
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- press key
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Abstract
The utility model discloses a press switch with a diagnosis function and a press key switch device. The press key switch comprises at least two resistors and one press key, wherein at least two resistors are connected in series, one end of the serially connected resistors is connected with a power supply or a whole vehicle controller, the other end is grounded, one end of the resistors connected with the power supply or the whole vehicle controller is also connected with a voltage collector, and a press key is connected in parallel with at least one but not all resistors. Through the arrangement of a plurality of serially connected resistors on the press key switch with the diagnosis function and the parallel connection arrangement of the press key on partial resistors, various states of the press key switch can be detected. When the press key switch fails, the fault state of the current switch is indicated, so personnel can carry out corresponding fault handling by aiming at the press key switch, various diagnosis requirements of switches for vehicles are met, in addition, the structure of the press key switch is simple, and the press key switch can be widely used in the fields such as starting/stopping control, mode switching control and the like.
Description
Technical field
The utility model relates to the automobile switching technique, relates in particular to a kind of key switch and key switch device with diagnostic function.
Background technology
In automobile, normal and entire car controller (the Vehicle Control Unit of key switch, hereinafter to be referred as VCU) connect, be used for car is started/stop control and mode switch etc., in the automotive controls of prior art, automobile-used key switch is the single two states that provides mostly, it is the closed and disconnected two states, this kind key switch is relatively more conventional, when key switch and entire car controller lose when being connected, be difficult to detect key switch automatically which kind of fault has taken place,, need be able to carry out the key switch of the detection and the diagnosis of various states along with the development of auto manufacturing.
Key switch of the prior art all can not carry out the detection and the diagnosis of various states usually, and its function restriction to automobile can not adapt to the development of automobile demand.In some automobiles, specially key switch is detected and diagnose by designing complicated electronic device, when key switch and controller lose when being connected, quote corresponding fault by the electronic device of complexity, satisfy the diagnostic requirements of vehicle, but the complexity that this has increased key switch has improved the cost of automobile.
The utility model content
The utility model provides a kind of key switch and key switch device with diagnostic function, and is simple and can carry out the purpose that various states detects with implementation structure.
The utility model provides a kind of key switch with diagnostic function, comprises at least two resistance and a button;
Described at least two resistance series connection, series resistance one end is connected with power supply or entire car controller; Other end ground connection, its end that is connected with power supply or entire car controller also is connected with the voltage acquisition device;
In described button and the described resistance at least one and non-whole resistance are in parallel.
In the described resistance, the resistance sum of all resistance not in parallel with described button is first resistance; The resistance sum of all resistance in parallel with described button is second resistance; The ratio of described first resistance and second resistance is greater than pre-set threshold value.
Described pre-set threshold value is more than or equal to 1.
Described series resistance links to each other with described power supply or entire car controller by an additional resistance.
The utility model also provides a kind of key switch device with diagnostic function, comprises the key switch of above-mentioned band diagnostic function, also comprises voltage processor, and described voltage processor comprises:
Voltage acquisition unit links to each other with first end of described key switch series resistance, and described first end is an end that is connected with described power supply or entire car controller; Under the state of button closed and disconnected, gather voltage respectively as closure signal and cut-off signal;
Voltage comparison unit links to each other with described voltage acquisition unit, and described closure signal and cut-off signal are compared to determine the state of described key switch.
The key switch that the utility model provides is by being provided with the resistance of a plurality of series connection, and button is arranged in parallel on therein the part resistance, make it possible to detect the various states of this key switch, when key switch breaks down, indication is when the malfunction of preceding switch, make the staff carry out corresponding troubleshooting at key switch, satisfied the multiple diagnostic requirements of automotive controls, and key switch is simple in structure, can be widely used in fields such as starting/stop control and mode switch control.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the key switch of the band diagnostic function that Fig. 1 provides for the utility model one embodiment.
The structural representation of the key switch device of the band diagnostic function that Fig. 2 provides for the utility model one embodiment.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope that the utility model is protected.
The utility model embodiment provides a kind of key switch with diagnostic function, solves key switch of the prior art and can not detect too complicated problems of the various states that obtains key switch or structure.
Structural representation referring to the key switch that Figure 1 shows that the band diagnostic function that the utility model one embodiment provides, this key switch comprises a button K, two resistance R 1 and R2, two resistance series connection, the a end of resistance R 1 is near power end, the b end of resistance R 2 is near earth terminal, and button K is in parallel with one of them resistance R 1.
As shown in Figure 1, a of resistance R 1 end can be connected with power end VCC by a resistance R p; The b end of resistance R 2 is connected with earth terminal GND; Perhaps, a of resistance R 1 end also can directly be connected with VCU, so that VCU directly gathers the voltage signal of a end; This power end VCC can be the high voltage end for the power supply of VCU power supply; It also can be the high voltage end of other power supplys in the car.
This key switch is when operate as normal, and when button K was closed, the whole resistance of key switch was the resistance of resistance R 2; When button K disconnected, the whole resistance of key switch was the resistance of resistance R 1+R2.Therefore, when button K disconnects, can export a voltage signal U1 near a end of power supply; When button K was closed, a end can output one voltage signal U2, and U2 is not equal to U1, and VCU as triggering signal, starts/stop operations such as control or mode switch with this voltage signal by gathering the voltage signal of a end to automobile.
In this key switch, can utilize voltage acquisition device AD that the voltage of a end is gathered, just can judge the various states of key switch.As shown in Figure 1, voltage acquisition device AD is by gathering the voltage of a end of button K when closed, and the voltage of a end of button K when disconnecting, and just can judge the integrality of this key switch.This power supply collector AD can be original testing circuit and a relative program on the car, also can be an equipment that disposes separately, is used to detect the voltage that connects power end and the detection feedback result of key switch.
The state that this key switch can detect comprises: shorted to earth disconnects and closed four kinds of button power supply short circuit, button.As shown in Figure 1, when button K was closed, the whole resistance of key switch was the resistance of resistance R 2; When disconnecting, resistance is the resistance of resistance R 1+R2.
The mode of state that detects key switch by voltage acquisition device AD is as follows:
1, if when button K is closed, the detection voltage of voltage acquisition device AD is 0; When button K disconnected, the detection voltage of voltage acquisition device AD still was 0, and the two ends shorted to earth of key switch then is described, promptly the equal ground connection in the two ends of switch is caused short circuit.
As shown in Figure 1, a of R1 end ground connection, when b held also ground connection, resistance R 1 and R2 were by short circuit, and then no matter whether button K is closed, and the voltage of a end of resistance R 1 is always 0.Therefore, voltage acquisition device AD detects voltage when detecting button K closure and button K disconnection all be 0 o'clock, then can judge the key switch shorted to earth.
2, if when button K is closed, the detection voltage of voltage acquisition device is UC; When button K disconnected, the detection voltage of voltage acquisition device was not that the magnitude of voltage that obtains of 0, twice detection is identical and be not 0 for UC and UC still, and the two ends that key switch then is described are during to power supply short circuit, and promptly the two ends of switch all connect power supply short circuit has taken place.
As shown in Figure 1, at a of R1 termination power, during the short circuit of b termination power, resistance R 1 and R2 are by short circuit, then no matter whether button K is closed, and the voltage of a end of R1 is always a certain fixing magnitude of voltage, therefore, voltage acquisition device AD detection voltage when detecting that button k is closed to be disconnected with button k is all identical and be not 0 o'clock, then can judge key switch to power supply short circuit.
3, if when button k is closed, the detection voltage of voltage acquisition device is U1; When button k disconnects, the detection voltage of voltage acquisition device is U2, and U1＞U2＞0 illustrates that then key switch can use normally, and time explanation button is closed to the detection voltage of voltage acquisition device AD for U1, the detection voltage of voltage acquisition device AD during for U2 the explanation button open.
As shown in Figure 1, at a of R1 termination power, during the b of R2 end ground connection, this key switch can operate as normal, and when button K was closed, the overall electrical resistance of key switch was R2, detected this moment and obtained U1; When button K disconnected, the overall electrical resistance of key switch was R1+R2, detected this moment and obtained U2.It then must be U1＞U2＞0.Therefore when voltage acquisition device AD detection obtained above-mentioned testing result, can judge key switch can operate as normal.
Need to prove that in the key switch of present embodiment, when button K was closed, voltage was born by R2, so the resistance of R2 can not be too little, the resistance that R2 can be set is greater than a certain preset value; In addition, for making button K switch just often, the magnitude of voltage that voltage acquisition device AD collects has significant difference, the resistance of the resistance of R1 more than or equal to R2 can be set, the ratio of resistance that R1 and R2 promptly are set is more than or equal to a certain pre-set threshold value, and optionally, this pre-set threshold value can be 1.
Another embodiment of the utility model provides a kind of key switch with diagnostic function, and the principle of the key switch among this key switch and first embodiment is basic identical.The key switch of present embodiment comprises a button and plural a plurality of resistance, a plurality of resistance series connection, and an end of close power end is a end, and an end of close earth terminal is the b end.
Wherein, button can be in parallel with in a plurality of resistance any one, perhaps a plurality of arbitrarily but non-whole resistance parallel connection, and a end can be connected with VCU, and the b end is connected with earth terminal.What the voltage acquisition device was still gathered is the voltage of a end.
The operation principle of the key switch of present embodiment and a last embodiment are basic identical, repeat no more.
The key switch that the utility model provides is by being provided with the resistance of a plurality of series connection, and button is arranged in parallel on therein the part resistance, make it possible to detect the various states of this key switch, when key switch breaks down, indication is when the malfunction of preceding switch, make the staff carry out corresponding troubleshooting at key switch, satisfied the multiple diagnostic requirements of automotive controls, and key switch is simple in structure, can be widely used in fields such as starting/stop control and mode switch control.
The structural representation of the key switch device of the band diagnostic function that provides for the utility model one embodiment referring to Fig. 2, this device comprises key switch 1 and the voltage processor 2 of being with diagnostic function.
Wherein, the structure and the operation principle of the key switch 1 of band diagnostic function are same as the previously described embodiments, repeat no more.
The key switch device that the utility model provides, key switch is provided with the resistance of a plurality of series connection, and button is arranged in parallel on therein the part resistance, make voltage processor can detect the various states of this key switch, satisfied the multiple diagnostic requirements of automotive controls, and simple in structure, can be widely used in fields such as starting/stop control and mode switch control.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (5)
1. the key switch with diagnostic function is characterized in that, comprises at least two resistance and a button;
Described at least two resistance series connection, series resistance one end is connected with power supply or entire car controller; Other end ground connection, its end that is connected with power supply or entire car controller also is connected with the voltage acquisition device;
In described button and the described resistance at least one and non-whole resistance are in parallel.
2. the key switch of band diagnostic function according to claim 1 is characterized in that,
In the described resistance, the resistance sum of all resistance not in parallel with described button is first resistance; The resistance sum of all resistance in parallel with described button is second resistance; The ratio of described first resistance and second resistance is greater than pre-set threshold value.
3. the key switch of band diagnostic function according to claim 2 is characterized in that, described pre-set threshold value is more than or equal to 1.
4. the key switch of band diagnostic function according to claim 1 is characterized in that, described series resistance links to each other with described power supply or entire car controller by an additional resistance.
5. the key switch device with diagnostic function is characterized in that, comprises the key switch of the arbitrary described band diagnostic function of claim 1～4, also comprises voltage processor, and described voltage processor comprises:
Voltage acquisition unit links to each other with first end of described key switch series resistance, and described first end is an end that is connected with described power supply or entire car controller; Under the state of button closed and disconnected, gather voltage respectively as closure signal and cut-off signal;
Voltage comparison unit links to each other with described voltage acquisition unit, and described closure signal and cut-off signal are compared to determine the state of described key switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202622603U CN201829385U (en) | 2010-07-13 | 2010-07-13 | Press switch with diagnosis function and press key switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202622603U CN201829385U (en) | 2010-07-13 | 2010-07-13 | Press switch with diagnosis function and press key switch device |
Publications (1)
| Publication Number | Publication Date |
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| CN201829385U true CN201829385U (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202622603U Expired - Fee Related CN201829385U (en) | 2010-07-13 | 2010-07-13 | Press switch with diagnosis function and press key switch device |
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| CN (1) | CN201829385U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487704A (en) * | 2013-10-12 | 2014-01-01 | 广西柳工机械股份有限公司 | Switch with line fault diagnostic function |
| CN103529346A (en) * | 2013-10-12 | 2014-01-22 | 广西柳工机械股份有限公司 | Line fault diagnosis method and device |
| CN103823462A (en) * | 2014-03-06 | 2014-05-28 | 深圳市赛灵卓科技有限公司 | Engineering machinery use controller with fault diagnosis function and engineering machinery control method |
| CN104991186A (en) * | 2015-07-13 | 2015-10-21 | 雅安小航电器有限责任公司 | Automobile switch on/off function automatic identification system and identification method |
| CN105067996A (en) * | 2015-07-27 | 2015-11-18 | 南京科远自动化集团股份有限公司 | Toggle switch detection method and detection system |
| CN105141301A (en) * | 2015-08-31 | 2015-12-09 | 昆山龙腾光电有限公司 | Keying circuit and display device comprising keying circuit |
| CN107966987A (en) * | 2017-11-27 | 2018-04-27 | 北京新能源汽车股份有限公司 | A kind of cruise signal acquisition circuit, constant-speed-cruise control system and automobile |
| CN107976601A (en) * | 2017-10-20 | 2018-05-01 | 广州小鹏汽车科技有限公司 | A kind of fault diagnosis circuit and method for NTC temperature acquisition circuits |
| CN110243519A (en) * | 2019-06-21 | 2019-09-17 | 东软睿驰汽车技术（沈阳）有限公司 | Charging gun locking checkout gear, method, communication controler and electric car |
| CN111771130A (en) * | 2018-09-26 | 2020-10-13 | 日立建机株式会社 | Safety switch input diagnosis device and working machine using same |
| CN114251157A (en) * | 2021-12-24 | 2022-03-29 | 潍柴动力股份有限公司 | Oil-gas separator pipeline, method and device for diagnosing fault of oil-gas separator |
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2010
- 2010-07-13 CN CN2010202622603U patent/CN201829385U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529346B (en) * | 2013-10-12 | 2016-12-07 | 广西柳工机械股份有限公司 | Circuit fault diagnosis method and device |
| CN103529346A (en) * | 2013-10-12 | 2014-01-22 | 广西柳工机械股份有限公司 | Line fault diagnosis method and device |
| CN103487704A (en) * | 2013-10-12 | 2014-01-01 | 广西柳工机械股份有限公司 | Switch with line fault diagnostic function |
| CN103823462A (en) * | 2014-03-06 | 2014-05-28 | 深圳市赛灵卓科技有限公司 | Engineering machinery use controller with fault diagnosis function and engineering machinery control method |
| CN104991186A (en) * | 2015-07-13 | 2015-10-21 | 雅安小航电器有限责任公司 | Automobile switch on/off function automatic identification system and identification method |
| CN104991186B (en) * | 2015-07-13 | 2017-09-26 | 雅安小航电器有限责任公司 | A kind of automatic recognition system of vehicle switch on-off function and recognition methods |
| CN105067996A (en) * | 2015-07-27 | 2015-11-18 | 南京科远自动化集团股份有限公司 | Toggle switch detection method and detection system |
| CN105067996B (en) * | 2015-07-27 | 2017-09-05 | 南京科远自动化集团股份有限公司 | The detection method and detecting system of a kind of toggle switch |
| CN105141301A (en) * | 2015-08-31 | 2015-12-09 | 昆山龙腾光电有限公司 | Keying circuit and display device comprising keying circuit |
| CN107976601A (en) * | 2017-10-20 | 2018-05-01 | 广州小鹏汽车科技有限公司 | A kind of fault diagnosis circuit and method for NTC temperature acquisition circuits |
| CN107966987A (en) * | 2017-11-27 | 2018-04-27 | 北京新能源汽车股份有限公司 | A kind of cruise signal acquisition circuit, constant-speed-cruise control system and automobile |
| CN107966987B (en) * | 2017-11-27 | 2021-01-15 | 北京新能源汽车股份有限公司 | Constant-speed cruise signal acquisition circuit, constant-speed cruise control system and automobile |
| CN111771130A (en) * | 2018-09-26 | 2020-10-13 | 日立建机株式会社 | Safety switch input diagnosis device and working machine using same |
| CN111771130B (en) * | 2018-09-26 | 2023-05-02 | 日立建机株式会社 | Safety switch input diagnostic device and work machine |
| CN110243519A (en) * | 2019-06-21 | 2019-09-17 | 东软睿驰汽车技术（沈阳）有限公司 | Charging gun locking checkout gear, method, communication controler and electric car |
| CN114251157A (en) * | 2021-12-24 | 2022-03-29 | 潍柴动力股份有限公司 | Oil-gas separator pipeline, method and device for diagnosing fault of oil-gas separator |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20170713 |
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| CF01 | Termination of patent right due to non-payment of annual fee |