CN211602396U - EGR valve detection device - Google Patents
EGR valve detection device Download PDFInfo
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- CN211602396U CN211602396U CN201921613771.2U CN201921613771U CN211602396U CN 211602396 U CN211602396 U CN 211602396U CN 201921613771 U CN201921613771 U CN 201921613771U CN 211602396 U CN211602396 U CN 211602396U
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- egr valve
- detection
- power supply
- driving circuit
- detection apparatus
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Abstract
The utility model discloses a detection apparatus for EGR valve, detection apparatus includes: the detection component is used for sending an EGR valve control signal and carrying out fault detection on the EGR valve according to the received EGR valve feedback signal; a communication assembly coupled to the detection assembly, the communication assembly including an EGR valve interface adapted to couple to an EGR valve to receive the EGR valve feedback signal of the EGR valve; and the driving circuit is respectively connected with the detection component and the communication component so as to drive the EGR valve to act through the EGR valve interface according to the EGR valve control signal. The EGR valve detection device has the advantages of being portable, low in cost, accurate and reliable in detection, and accordingly convenience is brought to detection of the EGR valve.
Description
Technical Field
The utility model relates to the technical field of vehicles, particularly, relate to a detection device of EGR valve.
Background
In the related art, the fault detection of the EGR valve usually requires that the EGR valve is placed in a laboratory environment and is detected by calibration software and tools, and the failure detection of the commercial EGR valve (i.e., the EGR valve is assembled to a vehicle, etc.) is performed by a large calibration tool and software, and a large calibration tool is required, so that the detection cost is high, and the popularization is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, an object of the utility model is to provide a detection device of EGR valve that portable, the operation degree of difficulty are low.
According to the utility model discloses a detection apparatus for EGR valve, include: the detection component is used for sending an EGR valve control signal and carrying out fault detection on the EGR valve according to the received EGR valve feedback signal; a communication assembly coupled to the detection assembly, the communication assembly including an EGR valve interface adapted to couple to an EGR valve to receive the EGR valve feedback signal of the EGR valve; and the driving circuit is respectively connected with the detection component and the communication component so as to drive the EGR valve to act through the EGR valve interface according to the EGR valve control signal.
According to the utility model discloses a detection device of EGR valve links to each other detection device and EGR valve, and detection device can send EGR valve control signal drive EGR valve action to and receive EGR valve feedback signal, carry out fault detection to the EGR valve according to the EGR valve control signal that it sent and the EGR valve feedback signal that receives simultaneously to can reduce the degree of difficulty that the EGR valve detected.
Further, the detection assembly includes: the analog-to-digital conversion module is used for converting the received EGR valve feedback signal; a signal generating unit to generate the EGR valve control signal.
Further, the signal generating unit is a single chip microcomputer.
Further, the detection assembly further comprises: and the upgrading module is used for acquiring an upgrading packet from a CAN network of the vehicle and upgrading the software of the detection assembly.
Further, the EGR valve interface includes: an EGR valve driving interface to drive the EGR valve to act; an EGR valve feedback interface to feedback the EGR valve feedback signal to the detection component.
Further, the detection device further comprises: the power supply interface comprises a power supply access end and a power supply end, wherein the power supply end is connected with the driving circuit, so that after the power supply access end is connected with a power supply, the power supply end supplies power to the driving circuit.
Further, the detection device further comprises: the power supply is connected with the driving circuit to supply power to the driving circuit.
Further, the power supply is detachably connected to the driving circuit.
Further, the power source is a rechargeable battery.
Drawings
Fig. 1 is a schematic view of a detection device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a detection device according to an embodiment of the present invention.
Reference numerals:
a detection device 100,
The device comprises a detection component 110, an analog-to-digital conversion module 111, a signal generation unit 112, an upgrade module 113, a timing module 114, a communication component 120, an EGR valve interface 121, a drive circuit 130 and a power supply 140.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
A detection apparatus 100 of an EGR valve according to an embodiment of the present invention is described below with reference to fig. 1 to 2.
According to the utility model discloses detection device 100 of EGR valve (exhaust gas recirculation valve) includes: a detection component 110, a communication component 120, and a driving circuit 130.
The detection component 110 is configured to send an EGR valve control signal and perform fault detection on the EGR valve according to the received EGR valve feedback signal. The communication assembly 120 is coupled to the detection assembly 110, the communication assembly 120 includes an EGR valve interface 121, and the EGR valve interface 121 may be coupled to the EGR valve to receive an EGR valve feedback signal from the EGR valve. The driving circuit 130 is connected to the detecting component 110 and the communication component 120 respectively, so as to drive the EGR valve action through the EGR valve interface 121 according to the EGR valve control signal.
Specifically, the detecting component 110 is connected to the EGR valve through the communication component 120, the EGR valve control signal of the detecting component 110 is transmitted to the driving circuit 130, and the driving circuit 130 can drive the EGR valve to act according to the EGR valve control signal. The EGR valve may feed back an EGR valve feedback signal to the detection component 110 through the EGR valve interface 121 while the EGR valve is active, and the detection component 110 may perform fault detection on the EGR valve based on the EGR valve control signal it sends and the EGR valve feedback signal it receives.
It can be understood that the number of components of the detection device 100 is small, the detection mode of the EGR valve is simple, and the EGR valve does not need to be separately placed in a complex detection environment, so that the difficulty of detecting the fault of the EGR valve can be reduced, and the detection device 100 is convenient to carry.
According to the utility model discloses detection device 100 of EGR valve links to each other detection device 100 with the EGR valve, and detection device 100 can send EGR valve control signal drive EGR valve action, and receive EGR valve feedback signal, carries out fault detection to the EGR valve according to the EGR valve control signal that it sent and the EGR valve feedback signal of receipt simultaneously to can reduce the degree of difficulty that the EGR valve detected, make detection device 100 be convenient for carry simultaneously.
In some embodiments of the present invention, the detection assembly 110 includes: an analog-to-digital conversion module 111 and a signal generation unit 112, wherein the analog-to-digital conversion module 111 is used for converting the received EGR valve feedback signal, and the signal generation unit 112 is used for generating an EGR valve control signal, so that the detection component 110 can receive the EGR valve feedback signal to realize PID control.
The signal generating unit 112 may send out a pulse signal (i.e., an EGR valve control signal) with a certain duty ratio and period to control the dc motor in the EGR valve. It is understood that the EGR valve is a DC motor driven EGR valve.
Further, the signal generating unit 112 is a single chip microcomputer, and the single chip microcomputer is small in size, so that the signal generating unit 112 is conveniently arranged in the detecting assembly 110, and on the premise that the signal generating unit 112 generates the EGR valve control signal, the size of the detecting assembly 110 is reasonably reduced, and further the size of the detecting device 100 can be reduced, so that the detecting device 100 is convenient to carry.
In some embodiments of the present invention, the detection assembly 110 further comprises: and the upgrading module 113, wherein the upgrading module 113 CAN obtain an upgrading packet from a CAN network of the vehicle and upgrade software of the detection assembly 110. The upgrade module 113 may communicate with a CAN bus in the vehicle to improve reliability and stability of the detection apparatus 100, so that detection reliability of the detection apparatus 100 may be ensured.
In some embodiments of the present invention, the detection assembly 110 further includes a timing module 114, and the timing module 114 can control the signal generation unit 112 to output different EGR valve control signals at different times, such as: the EGR valve control signal is output at a first time to cause the drive circuit 130 to drive the EGR valve open by 5%, the EGR valve control signal is output at a second time to cause the drive circuit 130 to drive the EGR valve open by 45%, the EGR valve control signal is output at a third time to cause the drive circuit 130 to drive the EGR valve open by 85%, and so on. The first time, the second time, and the third time may be consecutive time periods, and the EGR valve control signals may be sequentially output at the first time, the second time, and the third time, so that the detection device 100 drives the EGR valve to be opened to different opening degrees sequentially.
In some specific embodiments of the present invention, the EGR valve interface 121 includes: an EGR valve drive interface for delivering an EGR valve control signal to the EGR valve to drive the EGR valve action and an EGR valve feedback interface that can receive the EGR valve feedback signal and feed back the EGR valve feedback signal to the detection component 110.
In some embodiments of the present invention, the detection device 100 further includes a power interface, the power interface includes a power access end and a power supply end, and the power supply end is connected to the driving circuit 130, so as to supply power to the driving circuit 130 through the power supply end after the power access end is connected to the power source 140.
The power interface is used for connecting and matching with the power source 140, and the electric energy of the power source 140 can be transmitted to the driving circuit 130 through the power interface. It can be understood that the detection device 100 needs to drive the EGR valve operation by the driving circuit 130 when detecting the EGR valve. When the detection device 100 is connected to the power source 140 through the power interface, the power source 140 can supply power to the driving circuit 130 to meet the operation requirement of the detection device 100.
In other embodiments of the present invention, the detecting device 100 further includes a power source 140, and the power source 140 is connected to the driving circuit 130 to supply power to the driving circuit 130, so as to satisfy the working requirement of the detecting device 100.
It can be understood that, when the detection device 100 has the power source 140, the detection device 100 can supply the electric energy to the driving circuit 130 through the power source 140 carried by the detection device 100, so that the use of the detection device 100 is not limited by an external power source, i.e. the EGR valve can be detected without the external power source, the operation of the detection device 100 is simplified, and the practicability of the detection device 100 is improved.
Further, the power supply 140 is detachably connected to the driving circuit 130. The power source 140 is conveniently matched with the driving circuit 130, and when the detection device 100 is used, the power source 140 is connected with the driving circuit 130; when the detection apparatus 100 is not required to be used, the power supply 140 is separated from the driving circuit 130. Therefore, the carrying difficulty of the detection device 100 is convenient.
In some embodiments of the present invention, the power source 140 is a rechargeable battery, so that the power source 140 can be recycled many times, thereby reducing the cost of the detection apparatus 100.
According to the utility model discloses detection device 100, detection device 100's small portable can be applied to multiple measuring environment, can facilitate for the detection of EGR valve. The detection device 100 is low in cost, accurate and reliable in detection, and capable of reducing detection difficulty and cost of the EGR valve.
The following is a brief description of the detection method of the detection device 100 according to the embodiment of the present invention:
the EGR valve port 121 is connected to a corresponding pin of the EGR valve to connect the sensing device 100 to the EGR valve. The power source 140 is connected to the driving circuit 130, and the detection module 110 sends an EGR valve control signal to the EGR valve, receives an EGR valve feedback signal, and detects whether the EGR valve is malfunctioning according to the EGR valve feedback signal.
For example: the EGR valve is controlled to be opened by different opening degrees (5%, 45%, 85% and the like) through the detection device 100, if the EGR valve is opened in sequence, the failure of the EGR valve can be judged, otherwise, the failure of the EGR valve can be judged.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (9)
1. A detection apparatus of an EGR valve, characterized by comprising:
the detection component is used for sending an EGR valve control signal and carrying out fault detection on the EGR valve according to the received EGR valve feedback signal;
a communication assembly coupled to the detection assembly, the communication assembly including an EGR valve interface adapted to couple to an EGR valve to receive the EGR valve feedback signal of the EGR valve;
and the driving circuit is respectively connected with the detection component and the communication component so as to drive the EGR valve to act through the EGR valve interface according to the EGR valve control signal.
2. The detection apparatus of the EGR valve according to claim 1, wherein the detection assembly includes:
the analog-to-digital conversion module is used for converting the received EGR valve feedback signal;
a signal generating unit to generate the EGR valve control signal.
3. The detection device of the EGR valve as recited in claim 2, wherein the signal generation unit is a single chip microcomputer.
4. The detection apparatus of the EGR valve according to any one of claims 1 to 3, characterized in that the detection assembly further comprises:
and the upgrading module is used for acquiring an upgrading packet from a CAN network of the vehicle and upgrading the software of the detection assembly.
5. The detection apparatus of the EGR valve according to claim 1, wherein the EGR valve interface comprises:
an EGR valve driving interface to drive the EGR valve to act;
an EGR valve feedback interface to feedback the EGR valve feedback signal to the detection component.
6. The detection apparatus of the EGR valve according to claim 1, further comprising:
the power supply interface comprises a power supply access end and a power supply end, wherein the power supply end is connected with the driving circuit, so that after the power supply access end is connected with a power supply, the power supply end supplies power to the driving circuit.
7. The detection apparatus of the EGR valve according to claim 1, further comprising:
the power supply is connected with the driving circuit to supply power to the driving circuit.
8. The detection apparatus of an EGR valve according to claim 7, wherein said power source is detachably connected to said drive circuit.
9. The detection apparatus of an EGR valve according to claim 7, wherein the power source is a rechargeable battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921613771.2U CN211602396U (en) | 2019-09-25 | 2019-09-25 | EGR valve detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921613771.2U CN211602396U (en) | 2019-09-25 | 2019-09-25 | EGR valve detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211602396U true CN211602396U (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921613771.2U Active CN211602396U (en) | 2019-09-25 | 2019-09-25 | EGR valve detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211602396U (en) |
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2019
- 2019-09-25 CN CN201921613771.2U patent/CN211602396U/en active Active
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