CN109738728A - EOL detection module and detection device - Google Patents
EOL detection module and detection device Download PDFInfo
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- CN109738728A CN109738728A CN201910046109.1A CN201910046109A CN109738728A CN 109738728 A CN109738728 A CN 109738728A CN 201910046109 A CN201910046109 A CN 201910046109A CN 109738728 A CN109738728 A CN 109738728A
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- electric pump
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Abstract
The present invention provides EOL detection module and detection devices, are related to electric pump detection technique field, comprising: EOL detection module, TCU, rack PLC and electric pump controller；The direct-flow positive pole DC+ of electric pump controller is connected with TCU, the direct current cathode DC- of electric pump controller is grounded, the bus CAN_L of electric pump controller is connected with EOL detection module, rack PLC and TCU respectively, the bus CAN_H of electric pump controller is connected with EOL detection module, rack PLC and TCU respectively, the ignition switch IGN of electric pump controller is connected with TCU, and EOL detection module is also connected with TCU.The detection success rate of fault point can be improved in the present invention, and then reduces job costs, reduces security risk.
Description
Technical field
The present invention relates to electric pump detection technique fields, more particularly, to EOL detection module and detection device.
Background technique
Currently, the fault point of electric pump off-line test generally have it is following several: CAN_L and DC- short circuit, CAN_L and CAN_H it is short
Road, IGN and DC+ short circuit, CAN_H and DC+ short circuit, CAN_H and DC- short circuit, CAN_H and IGN short circuit.Wherein, existing detection skill
Art can not identify CAN_L and DC- short circuit, CAN_H and DC+ short circuit, CAN_H and IGN short circuit, therefore, can bring equipment damage,
The problems such as production cost is larger, the progress that dallies over one's work, there is also some potential safety problemss.
Summary of the invention
In view of this, the purpose of the present invention is to provide EOL detection module and detection device, to improve the detection of fault point
Success rate, and then job costs are reduced, reduce security risk.
In a first aspect, the embodiment of the invention provides a kind of EOL detection modules, wherein including first detection unit and
Two detection units；
The first detection unit includes: that bus CAN_H is connected with the emitter of triode Q1, and the base stage of triode Q1 is logical
It crosses resistance R5 to be connected with one end of resistance R1 and resistance R2 respectively, the collector of triode Q1 is connected with port K13, resistance R1's
Another termination GND of another termination VCC, resistance R2；
The second detection unit includes: that bus CAN_L is connected with the emitter of triode Q2, the base stage point of triode Q2
It is not connected with one end of resistance R3 and resistance R4, the collector of triode Q2 is connected with port K17, another termination of resistance R3
Another termination GND of VCC, resistance R4.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein institute
Stating triode Q1 and the triode Q2 is 2N3906.
Second aspect, the embodiment of the present invention also provide a kind of detection device, wherein including described in any item EOL as above
Detection module further includes TCU, rack PLC and electric pump controller；
The direct-flow positive pole DC+ of the electric pump controller is connected with the TCU, the direct current cathode DC- of the electric pump controller
Ground connection, the bus CAN_L of the electric pump controller is connected with the EOL detection module, rack PLC and the TCU respectively, described
The bus CAN_H of electric pump controller is connected with the EOL detection module, rack PLC and the TCU respectively, the electric pump control
The ignition switch IGN of device is connected with the TCU, and the EOL detection module is also connected with the TCU.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein institute
Stating TCU includes first control unit, the second control unit and port K7；
The first control unit includes: that one end of resistance R10, resistance R11 and capacitor C11 input analog-to-digital conversion signal
ADC1, the other end of resistance R10 are connected with one end of port K13' and capacitor C10 respectively, the other end of capacitor C10 respectively with electricity
Resistance R11 is connected and is grounded with the other end of capacitor C11；
Second control unit includes: that one end of resistance R20, resistance R21 and capacitor C21 input analog-to-digital conversion signal
Another termination VCC of ADC2, resistance R21, the other end of resistance R20 are connected with one end of port K17' and capacitor C20 respectively, electricity
The other end for holding C20 is connected and is grounded with the other end of capacitor C21.
In conjunction with the first possible embodiment of second aspect, the embodiment of the invention provides second of second aspect
Possible embodiment, wherein when the bus CAN_H and ignition switch IGN or direct-flow positive pole DC+ of the electric pump controller it
Between when there is short trouble, the emitter of triode Q1 and base stage form potential difference in the EOL detection module, triode Q1's
Emitter is connected with collector, and the port K13' of the TCU is raised, and is carried out by the debounce debounce to port K13'
Setting, the connection signal of the TCU receiving port K13', port K7 attracting electric relay is shorted bus CAN, in turn, described
Rack PLC generates the first alarm signal.
In conjunction with the first possible embodiment of second aspect, the embodiment of the invention provides the third of second aspect
Possible embodiment, wherein when there is short trouble between the bus CAN_L and direct current cathode DC- of the electric pump controller
When, the emitter of triode Q2 and base stage form potential difference, the emitter and collector of triode Q2 in the EOL detection module
Conducting, the port K17' of the TCU are pulled low, are configured by the debounce to port K17', the TCU receiving port
The connection signal of K17', port K7 attracting electric relay are shorted bus CAN, and in turn, the rack PLC generates the second alarm signal
Number.
In conjunction with second aspect, the embodiment of the invention provides the 4th kind of possible embodiments of second aspect, wherein also
Including electric pump controller card；
The electric pump controller is connected by electric pump controller card described in grafting with the TCU.
In conjunction with second aspect, the embodiment of the invention provides the 5th kind of possible embodiments of second aspect, wherein also
Including the electric pump EOP being connected with the electric pump controller.
In conjunction with second aspect, the embodiment of the invention provides the 6th kind of possible embodiments of second aspect, wherein
Transformer T30 is also connected between the direct-flow positive pole DC+ and the TCU of the electric pump controller.
In conjunction with second aspect, the embodiment of the invention provides the 7th kind of possible embodiments of second aspect, wherein
Transformer T15 is also connected between the ignition switch IGN+ and the TCU of the electric pump controller.
The embodiment of the present invention bring it is following the utility model has the advantages that
EOL detection module provided by the invention and detection device, comprising: EOL detection module, TCU, rack PLC and electric pump
Controller；The direct-flow positive pole DC+ of electric pump controller is connected with TCU, the direct current cathode DC- ground connection of electric pump controller, electric pump control
The bus CAN_L of device is connected with EOL detection module, rack PLC and TCU respectively, the bus CAN_H of electric pump controller respectively with
EOL detection module, rack PLC are connected with TCU, and the ignition switch IGN of electric pump controller is connected with TCU, EOL detection module also with
TCU is connected.The detection success rate of fault point can be improved in the present invention, and then reduces job costs, reduces security risk.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the EOL detection module circuit diagram that the embodiment of the present invention one provides；
Fig. 2 is detection device schematic diagram provided by Embodiment 2 of the present invention；
Fig. 3 is the circuit diagram of EOL detection module and TCU provided by Embodiment 2 of the present invention；
Fig. 4-5 is a kind of schematic diagram of fault point provided by Embodiment 2 of the present invention；
Fig. 6-7 is the schematic diagram of another fault point provided by Embodiment 2 of the present invention.
Icon:
01-EOL detection module；02- rack PLC；03-TCU；04- electric pump controller card；05- electric pump controller；06-
Electric pump EOP.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Currently, the fault point of electric pump off-line test generally have it is following several: CAN_L and DC- short circuit, CAN_L and CAN_H it is short
Road, IGN and DC+ short circuit, CAN_H and DC+ short circuit, CAN_H and DC- short circuit, CAN_H and IGN short circuit.Wherein, existing detection skill
Art can not identify CAN_L and DC- short circuit, CAN_H and DC+ short circuit, CAN_H and IGN short circuit, therefore, can bring equipment damage,
The problems such as production cost is larger, the progress that dallies over one's work, there is also some potential safety problemss.
Based on this, EOL detection module provided in an embodiment of the present invention and detection device, can be improved the detection of fault point at
Power, and then job costs are reduced, reduce security risk.
To be carried out first to EOL detection module disclosed in the embodiment of the present invention detailed convenient for understanding the present embodiment
It is thin to introduce.
Embodiment one:
Fig. 1 is the EOL detection module circuit diagram that the embodiment of the present invention one provides.
Referring to Fig.1, EOL (End Of Line, off-line test) detection module 01 includes first detection unit and the second detection
Unit.
First detection unit includes: that bus CAN_H is connected with the emitter of triode Q1, and the base stage of triode Q1 passes through electricity
Resistance R5 is connected with one end of resistance R1 and resistance R2 respectively, and the collector of triode Q1 is connected with port K13, and resistance R1's is another
Terminate VCC, another termination GND of resistance R2；
Second detection unit includes: that bus CAN_L is connected with the emitter of triode Q2, the base stage of triode Q2 respectively with
Resistance R3 is connected with one end of resistance R4, and the collector of triode Q2 is connected with port K17, another termination VCC of resistance R3, electricity
Hinder another termination GND of R4.
Wherein, triode Q1 and triode Q2 is 2N3906.
Embodiment two:
Fig. 2 is detection device schematic diagram provided by Embodiment 2 of the present invention.
Detection device includes EOL detection module 01 provided by a upper embodiment, further includes TCU (Transmission
Control Unit, automatic gear-box control unit) 03, (Programmable Logic Controller, can compile rack PLC
Journey logic controller) 02 and electric pump controller 05.In addition, further including electric pump controller card 04, electric pump controller 05 is by inserting
Electric pump controller card 04 is connect to be connected with TCU03；It further include the electric pump EOP being connected with electric pump controller 05
(EmergencyOil Pump, direct current oil pump) 06.
Pass through the port 1 and TCU03 phase of electric pump controller card 04 referring to Fig. 2, the direct-flow positive pole DC+ of electric pump controller 05
Even, the direct current cathode DC- of electric pump controller 05 is grounded by the port 2 of electric pump controller card 04, electric pump controller 05 it is total
Line CAN_L is connected with EOL detection module 01, rack PLC02 and TCU03 respectively by the port 4 of electric pump controller card 04, electricity
The bus CAN_H of pump controller 05 by the port 5 of electric pump controller card 04 respectively with EOL detection module 01, rack PLC02
It is connected with TCU03, the ignition switch IGN of electric pump controller 05 is detected with EOL respectively by the port 7 of electric pump controller card 04
Module 01, rack PLC02 are connected with TCU03, and EOL detection module 01 is also connected with TCU03.
Further, referring to Fig. 3, TCU03 includes first control unit, the second control unit and port K7.
First control unit includes: that one end of resistance R10, resistance R11 and capacitor C11 input analog-to-digital conversion signal
ADC1, the other end of resistance R10 are connected with one end of port K13' and capacitor C10 respectively, the other end of capacitor C10 respectively with electricity
Resistance R11 is connected and is grounded with the other end of capacitor C11；
Second control unit includes: that one end of resistance R20, resistance R21 and capacitor C21 input analog-to-digital conversion signal
Another termination VCC of ADC2, resistance R21, the other end of resistance R20 are connected with one end of port K17' and capacitor C20 respectively, electricity
The other end for holding C20 is connected and is grounded with the other end of capacitor C21.
Further, referring to Fig. 4, as the bus CAN_H and ignition switch IGN or direct-flow positive pole DC of electric pump controller 05
+ between when there is short trouble, the emitter of triode Q1 and base stage form potential difference, triode Q1 in EOL detection module 01
Emitter be connected with collector, the port K13' of TCU03 is raised, by the debounce (debounce) to port K13' into
Row setting, the connection signal of TCU03 receiving port K13', port K7 attracting electric relay are shorted bus CAN, in turn, rack
PLC02 generates the first alarm signal, as shown in Figure 5.
Further, referring to Fig. 6, when appearance short circuit event between the bus CAN_L and direct current cathode DC- of electric pump controller 05
When barrier, the emitter of triode Q2 and base stage form potential difference, the emitter and collector of triode Q2 in EOL detection module 01
Conducting, the port K17' of TCU03 are pulled low, are configured by the debounce to port K17', TCU03 receiving port K17'
Connection signal, port K7 attracting electric relay make bus CAN be shorted, in turn, rack PLC02 generate the second alarm signal, such as
Shown in Fig. 7.
Further, transformer T30 is also connected between the direct-flow positive pole DC+ and TCU03 of electric pump controller 05.
And transformer T15 is also connected between the ignition switch IGN+ and TCU03 of electric pump controller 05.
The embodiment of the present invention bring it is following the utility model has the advantages that
EOL detection module provided by the invention and detection device, comprising: EOL detection module, TCU, rack PLC and electric pump
Controller；The direct-flow positive pole DC+ of electric pump controller is connected with TCU, the direct current cathode DC- ground connection of electric pump controller, electric pump control
The bus CAN_L of device is connected with EOL detection module, rack PLC and TCU respectively, the bus CAN_H of electric pump controller respectively with
EOL detection module, rack PLC are connected with TCU, and the ignition switch IGN of electric pump controller is connected with TCU, EOL detection module also with
TCU is connected.The detection success rate of fault point can be improved in the present invention, and then reduces job costs, reduces security risk.
In all examples being illustrated and described herein, any occurrence should be construed as merely illustratively, without
It is as limitation, therefore, other examples of exemplary embodiment can have different values.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or components can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be through some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of EOL detection module, which is characterized in that including first detection unit and second detection unit；
The first detection unit includes: that bus CAN_H is connected with the emitter of triode Q1, and the base stage of triode Q1 passes through electricity
Resistance R5 is connected with one end of resistance R1 and resistance R2 respectively, and the collector of triode Q1 is connected with port K13, and resistance R1's is another
Terminate VCC, another termination GND of resistance R2；
The second detection unit includes: that bus CAN_L is connected with the emitter of triode Q2, the base stage of triode Q2 respectively with
Resistance R3 is connected with one end of resistance R4, and the collector of triode Q2 is connected with port K17, another termination VCC of resistance R3, electricity
Hinder another termination GND of R4.
2. EOL detection module according to claim 1, which is characterized in that the triode Q1 and the triode Q2 are equal
For 2N3906.
3. a kind of detection device, which is characterized in that including the described in any item EOL detection modules of such as claim 1~2, also wrap
Include automatic gear-box control unit TCU, rack programmable logic controller (PLC) PLC and electric pump controller；
The direct-flow positive pole DC+ of the electric pump controller is connected with the TCU, the direct current cathode DC- ground connection of the electric pump controller,
The bus CAN_L of the electric pump controller is connected with the EOL detection module, rack PLC and the TCU respectively, the electric pump
The bus CAN_H of controller is connected with the EOL detection module, rack PLC and the TCU respectively, the electric pump controller
Ignition switch IGN is connected with the TCU, and the EOL detection module is also connected with the TCU.
4. detection device according to claim 3, which is characterized in that the TCU includes first control unit, the second control
Unit and port K7；
The first control unit includes: that one end of resistance R10, resistance R11 and capacitor C11 input analog-to-digital conversion signal
ADC1, the other end of resistance R10 are connected with one end of port K13' and capacitor C10 respectively, the other end of capacitor C10 respectively with electricity
Resistance R11 is connected and is grounded with the other end of capacitor C11；
Second control unit includes: that one end of resistance R20, resistance R21 and capacitor C21 input analog-to-digital conversion signal
Another termination VCC of ADC2, resistance R21, the other end of resistance R20 are connected with one end of port K17' and capacitor C20 respectively, electricity
The other end for holding C20 is connected and is grounded with the other end of capacitor C21.
5. detection device according to claim 4, which is characterized in that as the bus CAN_H and point of the electric pump controller
When there is short trouble between fire switch IGN or direct-flow positive pole DC+, the emitter of triode Q1 in the EOL detection module
Potential difference is formed with base stage, the emitter of triode Q1 is connected with collector, and the port K13' of the TCU is raised, by right
The debounce debounce of port K13' is configured, the connection signal of the TCU receiving port K13', and port K7 is attracted relay
Device is shorted bus CAN, and in turn, the rack PLC generates the first alarm signal.
6. detection device according to claim 4, which is characterized in that as the bus CAN_L of the electric pump controller and straight
When there is short trouble between stream cathode DC-, the emitter of triode Q2 and base stage form current potential in the EOL detection module
The emitter of difference, triode Q2 is connected with collector, and the port K17' of the TCU is pulled low, by port K17''s
Debounce is configured, and the connection signal of the TCU receiving port K17', port K7 attracting electric relay makes bus CAN short
It connects, in turn, the rack PLC generates the second alarm signal.
7. detection device according to claim 3, which is characterized in that further include electric pump controller card；
The electric pump controller is connected by electric pump controller card described in grafting with the TCU.
8. detection device according to claim 3, which is characterized in that further include the electric pump being connected with the electric pump controller
EOP。
9. detection device according to claim 3, which is characterized in that the electric pump controller direct-flow positive pole DC+ with
Transformer T30 is also connected between the TCU.
10. detection device according to claim 3, which is characterized in that in the ignition switch IGN+ of the electric pump controller
Transformer T15 is also connected between the TCU.
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| CN201910046109.1A CN109738728B (en) | 2019-01-17 | 2019-01-17 | EOL detection module and detection device |
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|---|---|---|---|
| CN201910046109.1A CN109738728B (en) | 2019-01-17 | 2019-01-17 | EOL detection module and detection device |
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| Publication number | Publication date |
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| CN109738728B (en) | 2021-08-03 |
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