CN204809126U - On -vehicle relay - Google Patents
On -vehicle relay Download PDFInfo
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- CN204809126U CN204809126U CN201520365609.9U CN201520365609U CN204809126U CN 204809126 U CN204809126 U CN 204809126U CN 201520365609 U CN201520365609 U CN 201520365609U CN 204809126 U CN204809126 U CN 204809126U
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- vehicle
- relay
- resistance
- communication interface
- mounted relay
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Abstract
The utility model discloses an on -vehicle relay, wherein, this on -vehicle relay includes: electric relay body, the bus communication module, the controller is connected with electric relay body to the host computer of connecting on -vehicle relay through the bus communication module. The utility model provides a lower technical problem of on -vehicle relay's reliability among the prior art.
Description
Technical field
The utility model relates to electric automobile relay field, in particular to a kind of vehicle-mounted relay.
Background technology
Existing most of AUTOMOTIVE RELAY controlled terminal is with or without the control of control signal, control end has Continuity signal then coil tip side adhesive conducting, i.e. relay just controlled parts itself, do not possess the feedback of oneself state, detection, communicate, prevent the functions such as false triggering, the requirement of automotive technology development can not be met.
Along with the development of microelectric technique, computer technology, Control, relay status detect and feedback can be integrated in the shell of relay together with the parts of original relay, this condition provided the foundation for new relay construction, makes new automobile intelligent relay and original AUTOMOTIVE RELAY the samely convenient in installation and replacing etc.Application number be 201310343070.2 a kind of automobile intelligent relay disclose such technical scheme: a kind of automobile intelligent relay comprises: transducer, controller (single-chip microcomputer), actuator (parts of former relay own) three parts, define a complete system, can oneself control with carrying out relay on-off according to external condition, this kind of known AUTOMOTIVE RELAY is two input series electrical magnetic coils, control output end, corner relay has two outputs, five pin relays have three outputs, solenoids between two outputs, one energising, coil will produce suction, inhale movable contact spring, normally-closed contact is disconnected, make normally opened contact close simultaneously, thus the break-make of control output end.Itself be the parts controlled by automotive interior controller.But cannot communicate with the host computer of electric automobile, when causing relay to break down, host computer also cannot know that situation makes corresponding adjustment, causes the reliability of vehicle-mounted relay lower in time.
For above-mentioned problem, at present effective solution is not yet proposed.
Utility model content
The utility model embodiment provides a kind of vehicle-mounted relay, at least to solve the technical problem that in prior art, the reliability of vehicle-mounted relay is lower.
According to an aspect of the utility model embodiment, provide a kind of vehicle-mounted relay, comprising: relay body; Bus communication module; And controller, be connected with described relay body, and pass through the host computer of vehicle-mounted relay described in described bus communication model calling.
Further, described vehicle-mounted relay also comprises: testing circuit, is all connected with described controller with described relay body, for detecting the operating state of described relay body.
Further, described testing circuit comprises: the first resistance, and first end is connected with the moving contact of described relay body; Voltage comparator, the first input end of described voltage comparator is connected with the normally opened contact of described relay body, and the second input of described voltage comparator is connected with the second end of described first resistance; Photoelectrical coupler; And operational amplifier, the input of described operational amplifier is connected with the output of described photoelectrical coupler.
A progressive ground, described testing circuit also comprises: the second resistance, and first end is connected with the output of described voltage comparator.
Further, described photoelectrical coupler comprises: the first light-emitting diode, is connected with the second end of described second resistance; First photodiode, the negative pole of described first photodiode is connected with described voltage comparator second end; And second photodiode, the negative pole of described second photodiode is connected with the first input end of described operational amplifier, and the positive pole of described second photodiode is connected with the second input of described operational amplifier.
Further, the positive pole of described first photodiode is all connected with earth point with the positive pole of described second photodiode, and the positive pole of the first light-emitting diode connects high level.
Further, described testing circuit also comprises: the 3rd resistance, and the first end of described 3rd resistance is connected with the output of described operational amplifier; And electric capacity, the first end of described electric capacity is connected with the second end of described 3rd resistance.
Further, described vehicle-mounted relay comprises: driver module, is connected between described controller and described relay body.
Further, described bus communication module has the module of following at least one communication interface: CAN communication interface, LIN communication interface, MAX232 communication interface and MAX458 communication interface.
Further, described vehicle-mounted relay also comprises: in the first communication link and second communication link employing CAN communication interface, LIN communication interface, MAX232 communication interface and MAX458 communication interface, any one communicates, wherein, described first communication link is the communication link between described bus communication module and described controller, and described second communication link is the communication link between described bus communication module and described host computer.
In the utility model embodiment, adopt relay body; Bus communication module; And controller, wherein said controller is connected with described relay body, and passes through the host computer of vehicle-mounted relay described in described bus communication model calling.The host computer of connection control device and vehicle-mounted relay is carried out by arranging bus communication module, there is the vehicle-mounted relay of this kind of structure, when relay breaks down, fault message can be sent to the host computer of vehicle-mounted relay by controller by bus communication module, reach the object of control relay on host computer, thus achieve the technique effect making relay become controlled intelligent parts, and then solve the technical problem that in prior art, the reliability of vehicle-mounted relay is lower.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the optional a kind of vehicle-mounted relay of the utility model embodiment;
Fig. 2 is the schematic diagram according to the optional a kind of vehicle-mounted relay of the utility model embodiment; And
Fig. 3 is the schematic diagram according to the optional testing circuit of the utility model embodiment.
Embodiment
The utility model scheme is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the embodiment of the utility model part, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
It should be noted that, term " first ", " second " etc. in specification of the present utility model and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiment of the present utility model described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, and intention is to cover not exclusive comprising.
A kind of vehicle-mounted relay is provided according to the utility model embodiment.Fig. 1 is the schematic diagram according to the optional a kind of vehicle-mounted relay of the utility model embodiment.
As shown in Figure 1, this vehicle-mounted relay mainly comprises relay body 10, bus communication module 20 and controller 30, wherein, controller 30 is connected with described relay body 10, controller 30 is control cores of vehicle-mounted relay, and is connected the host computer of vehicle-mounted relay by bus communication module 20.
Host computer sends control command to controller 30, and with the operating state of control relay body 10, the operating state of the relay body 10 got is uploaded to host computer by bus communication module 20 by controller 30.
In the utility model embodiment, the host computer of connection control device and vehicle-mounted relay is carried out by arranging bus communication module, there is the vehicle-mounted relay of this kind of structure, when relay breaks down, fault message can be sent to the host computer of vehicle-mounted relay by controller by bus communication module, reach the object of control relay on host computer, thus achieve the technique effect making relay become controlled intelligent parts, and then solve the technical problem that in prior art, the reliability of vehicle-mounted relay is lower.
Fig. 2 is the schematic diagram according to the optional a kind of vehicle-mounted relay of the utility model embodiment.
As shown in Figure 2, the vehicle-mounted relay of the present embodiment is except comprising relay body 10, bus communication module 20 and controller 30, also comprise driver module 40 and testing circuit 50, wherein, controller 30 is connected to relay body 10 by driver module 40, driver module 40 is for drive level conversion and the driving force strengthening controller, and testing circuit 50 is all connected with controller 30 with relay body 10, for detecting the operating state of relay body 10.
Particularly, controller 30 receives the control command of the host computer from vehicle-mounted relay, wherein, control command is mainly used in unlatching and the adhesive of the normally opened contact of control relay body 10, according to communications protocol, control command check code is verified, after control command verification is correct, controller 30 drives unlatching and the adhesive of relay body 10 normally opened contact through driver module 40, wherein, driver module 40 realizes being converted to 12V/24V by Transistor-Transistor Logic level, and driver module 40 can select BTS724 drive circuit.Testing circuit 50 detects the operating state of relay body, for judging whether relay body 10 there occurs fault, by the output feedack of testing circuit 50 to controller 30, controller 30 detected by testing circuit 50 feedack in the first preset time t first time, first preset time t of being often separated by afterwards just needs detects by testing circuit 50 feedack, wherein, the first preset time t is not unique, can be chosen for 10ms in the utility model embodiment.If controller 30 detects relay body 10, operating state is normal, so controller 30 can be selected testing circuit 50 feedack be uploaded to the host computer of vehicle-mounted relay or be not uploaded to the host computer of vehicle-mounted relay, if analyzed by information testing circuit 50 being fed back to controller 30, can judge that fault has appearred in relay body 10, in this case, fault message is uploaded to the host computer of vehicle-mounted relay by controller 30 by bus communication module 20, wherein, first communication link and second communication link can choose CAN communication interface, LIN communication interface, any one communication interface in MAX232 communication interface and MAX458 communication interface, wherein, first communication link is the communication link between bus communication module and controller, second communication link is the communication link between bus communication module and host computer.
Fig. 3 is the schematic diagram according to the optional testing circuit of the utility model embodiment.
As shown in Figure 3, testing circuit 50 comprises: the first resistance R1, voltage comparator U1, the second resistance R2, photoelectrical coupler U2, operational amplifier U3, the 3rd resistance R3, electric capacity C1, and wherein, the first end of the first resistance R1 is connected with the moving contact of relay body; The first input end of voltage comparator U1 is connected with the normally opened contact of relay body, and second input of voltage comparator U1 is connected with second end of the first resistance R1; The first end of the second resistance R2 is connected with the output of voltage comparator U1; Photoelectrical coupler U2 comprises: the first light-emitting diode, the first photodiode and the second photodiode, and the first light-emitting diode is connected with second end of the second resistance R2; The negative pole of the first photodiode is connected with voltage comparator second end; The negative pole of the second photodiode is connected with the first input end of operational amplifier U3, and the positive pole of the second photodiode is connected with second input of operational amplifier U3; The input of operational amplifier U3 is connected with the output of photoelectrical coupler U2; The first end of the 3rd resistance R3 is connected with the output of operational amplifier U3; The first end of electric capacity C1 is connected with second end of the 3rd resistance R3; In operational amplifier peripheral circuit, the first end of the 4th resistance R4 is connected with the negative pole of the second photodiode, and the second end of the 4th resistance is connected with the first end of the 3rd resistance.
Particularly, after the order of the relay normally open contact adhesive that the host computer receiving vehicle-mounted relay when controller 30 sends, the moving contact of relay body 10 and normally opened contact adhesive, can produce corresponding resistance between the late contact of adhesive and normally opened contact.When normally opened contact and the moving contact adhesive of relay body 10, when relay body 10 is working properly, namely do not break down, now, resistance value between moving contact and normally opened contact is not higher than 20m Ω, when resistance value is about 20m Ω, the output RELAY_CHECK output voltage values of operational amplifier is about 0.5V.When relay body 10 breaks down, resistance value between moving contact and normally opened contact can corresponding increase, resistance value now between moving contact and normally opened contact is not less than 100m Ω, when resistance is about 100m Ω, now the output RELAY_CHECK output voltage values of operational amplifier is about 2.5V, when resistance value is not less than 100m Ω, correspondingly magnitude of voltage is not less than 2.5V.The change of the resistance value between moving contact and normally opened contact can react the change for testing circuit 50 output voltage values.Resistance change between moving contact and normally opened contact is that non-reasonable value is interval, such as be not less than 100m Ω, so corresponding output voltage values also can be changed in non-rational interval, such as 2.5V, the magnitude of voltage that so now just can feed back to controller 30 according to testing circuit 50 judges whether relay body 10 there occurs fault, when judging to there occurs fault, fault message is uploaded to the host computer of vehicle-mounted relay.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (10)
1. a vehicle-mounted relay, is characterized in that, comprising:
Relay body;
Bus communication module; And
Controller, is connected with described relay body, and passes through the host computer of vehicle-mounted relay described in described bus communication model calling.
2. vehicle-mounted relay according to claim 1, is characterized in that, described vehicle-mounted relay also comprises:
Testing circuit, is all connected with described controller with described relay body, for detecting the operating state of described relay body.
3. vehicle-mounted relay according to claim 2, is characterized in that, described testing circuit comprises:
First resistance, first end is connected with the moving contact of described relay body;
Voltage comparator, the first input end of described voltage comparator is connected with the normally opened contact of described relay body, and the second input of described voltage comparator is connected with the second end of described first resistance;
Photoelectrical coupler; And
Operational amplifier, the input of described operational amplifier is connected with the output of described photoelectrical coupler.
4. vehicle-mounted relay according to claim 3, is characterized in that, described testing circuit also comprises:
Second resistance, first end is connected with the output of described voltage comparator.
5. vehicle-mounted relay according to claim 4, is characterized in that, described photoelectrical coupler comprises:
First light-emitting diode, is connected with the second end of described second resistance;
First photodiode, the negative pole of described first photodiode is connected with described voltage comparator second end; And
Second photodiode, the negative pole of described second photodiode is connected with the first input end of described operational amplifier, and the positive pole of described second photodiode is connected with the second input of described operational amplifier.
6. vehicle-mounted relay according to claim 5, is characterized in that, the positive pole of described first photodiode is all connected with earth point with the positive pole of described second photodiode, and the positive pole of the first light-emitting diode connects high level.
7. vehicle-mounted relay according to claim 3, is characterized in that, described testing circuit also comprises:
3rd resistance, the first end of described 3rd resistance is connected with the output of described operational amplifier; And
Electric capacity, the first end of described electric capacity is connected with the second end of described 3rd resistance.
8. vehicle-mounted relay according to claim 1, is characterized in that, described vehicle-mounted relay also comprises:
Driver module, is connected between described controller and described relay body.
9. vehicle-mounted relay according to claim 1, is characterized in that, described bus communication module has the module of following at least one communication interface:
CAN communication interface, LIN communication interface, MAX232 communication interface and MAX458 communication interface.
10. vehicle-mounted relay according to claim 1, is characterized in that:
In first communication link and second communication link employing CAN communication interface, LIN communication interface, MAX232 communication interface and MAX458 communication interface, any one communicates, wherein, described first communication link is the communication link between described bus communication module and described controller, and described second communication link is the communication link between described bus communication module and described host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520365609.9U CN204809126U (en) | 2015-05-29 | 2015-05-29 | On -vehicle relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520365609.9U CN204809126U (en) | 2015-05-29 | 2015-05-29 | On -vehicle relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204809126U true CN204809126U (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520365609.9U Active CN204809126U (en) | 2015-05-29 | 2015-05-29 | On -vehicle relay |
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| Country | Link |
|---|---|
| CN (1) | CN204809126U (en) |
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2015
- 2015-05-29 CN CN201520365609.9U patent/CN204809126U/en active Active
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