CN205091614U - Engine signal pickup assembly - Google Patents
Engine signal pickup assembly Download PDFInfo
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- CN205091614U CN205091614U CN201520900655.4U CN201520900655U CN205091614U CN 205091614 U CN205091614 U CN 205091614U CN 201520900655 U CN201520900655 U CN 201520900655U CN 205091614 U CN205091614 U CN 205091614U
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Abstract
The utility model provides an engine signal pickup assembly, this engine signal pickup assembly includes: car ECU connection port, OBD diagnosis port, serial ports, the engine harness connection port who is used for receiving engine data, oscillograph connection port, signal acquisition circuit and power module, the device plays the bridging effect between engine and ECU, need not to carry out any transformation to engine harness, just can realize the collection of engine signal to through the oscilloscope display, make things convenient for the research staff to know the state of engine, in addition, through OBD diagnosis port or serial ports with ECU and computer link, make the computer need not to be connected to the car, just can the quantity performed certificate write with a brush dipped in chinese ink and failure diagnosis, saved time and human cost. This system is easy and simple to handle, portable, function abundant, can improve the efficiency of engine research and development, reduces the research and development cost of enterprise.
Description
Technical field
The utility model relates to automotive field, particularly a kind of engine signal harvester.
Background technology
Along with the development of China's automobile industry, the environmental pollution that the automobile of One's name is legion causes and energy problem highlight day by day.Automobile has been not only a kind of vehicles, and nowadays people focus on its security, comfortableness, economy and low emission etc. more.Therefore, the developing direction of future automobile will certainly concentrate on the small-sized and lightweight of engine, the efficient and aspect such as fuel-economizing, low emission.
For motor car engine manufacturing enterprise, in engine performance performance history, often there is various abnormal problem.Research staff is now needed to gather the various signals of engine, by the state of signal, the problem of investigation engine.Comparatively traditional method is the wire harness of transformation engine, by the mode gone between separately, required engine signal is introduced into oscillograph, and the potential safety hazard brought thus is large, poor reliability.And in automatically controlled calibration process, research staff needs by the nominal data in adjustment engine electric-controlled unit (ECU), optimize the controling parameters of engine, make the running of its safety and efficiently.ECU is automobile specified microcomputerized controller, and it carries out computing, process, judgement to the information that various sensor inputs, then output order according to the program of its internal memory and data, controls the normal work of various actuator.Calibration engineer often needs could to carry out data to ECU by means of car load platform and writes with a brush dipped in Chinese ink, or diagnoses ECU, finds out vehicle failure and removes the diagnostic trouble code in ECU.
At present, no matter be that stand engine performance is developed or in car load calibration process, the operation of said process is all more loaded down with trivial details, for Automobile Enterprises, all can take a large amount of time and human cost.
Utility model content
The purpose of this utility model is to provide a kind of engine signal harvester, this engine signal harvester is easy to carry, easy and simple to handle, improve the work efficiency of engine performance exploitation and automatically controlled demarcation research staff, for motor car engine R & D Enterprises is raised the efficiency, reduce costs.
In order to achieve the above object, the utility model provides a kind of engine signal harvester, comprising:
Automobile ECU connectivity port, comprises first interface and the second interface for being connected with automobile ECU;
OBD diagnostic port, the 4th interface comprising the 3rd interface for being connected with external unit and be connected with described first interface;
Serial ports, the 6th interface comprising the 5th interface for being connected with external unit and be connected with described first interface;
For receiving the engine wiring harness connectivity port of engine data;
Oscillograph connectivity port;
Signal acquisition circuit, comprises the 7th interface, the 8th interface and the 9th interface, and wherein said 7th interface is connected with described engine wiring harness connectivity port, and described 8th interface is connected with described oscillograph connectivity port; And
Power module, is electrically connected with the 9th interface of described signal acquisition circuit.
Aforesaid engine signal harvester, wherein,
Described OBD diagnostic port comprises the CANHI that writes with a brush dipped in Chinese ink for ECU data high-order PIN with CANLOW low level PIN needle pin, for the KWP2000PIN stitch of the ECU diagnosis PIN needle pin relevant with power supply.
Aforesaid engine signal harvester, wherein,
Described serial ports is 9 needle serial ports, and described 9 needle serial ports comprise CANHI high-order PIN and the CANLOW low level PIN needle pin that ECU data are write with a brush dipped in Chinese ink.
Aforesaid engine signal harvester, wherein,
The high-order PIN needle pin of CANHI of described OBD diagnostic port is connected with the high-order PIN needle pin of CANHI of 9 needle serial ports and automobile ECU respectively;
The CANLOW low level PIN needle pin of described OBD diagnostic port is connected with the CANLOW low level PIN needle pin of 9 needle serial ports and automobile ECU respectively;
The KWP2000PIN stitch of described OBD diagnostic port is connected with the KWP2000PIN stitch of automobile ECU.
Aforesaid engine signal harvester, wherein,
Described power module comprises a transformer, and described transformer is used for operating voltage external voltage being converted to applicable described engine signal harvester.
Aforesaid engine signal harvester, wherein,
Described power module also comprises the switch of a tape light, and described switch is used to indicate the duty of described engine signal harvester.
Aforesaid engine signal harvester, wherein,
Described engine signal harvester also comprises: the USB interface be connected with described power module.
Embodiment of the present utility model has following beneficial effect:
Embodiment of the present utility model to be connected with engine to obtain its various signal by arranging engine wiring harness port, and by oscilloscope display desired signal, does not need to carry out any amendment to engine wiring harness.In addition, ECU is connected with computing machine with serial ports by OBD diagnostic port, without the need to car load platform, just can complete ECU data to write with a brush dipped in Chinese ink and fault diagnosis, this device plays bridge joint effect between engine and ECU, can improve the efficiency of engine research, development, remarkable for the effect of saving human cost, and this system be easy to carry, easy and simple to handle, reduce the R&D costs of enterprise.
Accompanying drawing explanation
Fig. 1 is the composition structural representation of the engine signal harvester of the utility model embodiment.
Reference numeral:
Signal acquisition circuit-1, power module-2, USB interface-3, OBD (onboard diagnostic system) diagnostic port-4, serial ports-5, engine wiring harness connectivity port-6, automobile ECU connectivity port-7, oscillograph connectivity port-8, computing machine-9, automobile ECU-10, engine-11, oscillograph-12.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
See Fig. 1, embodiment of the present utility model provides a kind of engine signal harvester, and this engine signal harvester comprises: automobile ECU link 7, comprises first interface and the second interface for being connected with automobile ECU 10; OBD diagnostic port 4, the 4th interface comprising the 3rd interface for being connected with external unit and be connected with described first interface; Serial ports 5, the 6th interface comprising the 5th interface for being connected with external unit and be connected with described first interface; For receiving the engine wiring harness connectivity port 6 of engine 11 data; Oscillograph connectivity port 8; Signal acquisition circuit 1, comprise the 7th interface, the 8th interface and the 9th interface, wherein the 7th interface is connected with engine wiring harness connectivity port 6, and the 8th interface is connected with oscillograph connectivity port 8; And power module 2, be electrically connected with the 9th interface of signal acquisition circuit 1.
Concrete, external unit is computing machine 9, and signal acquisition circuit 1 is connected with engine wiring harness connectivity port 6 and oscillograph connectivity port 8 respectively.Power module 2 is connected with OBD diagnostic port 4 and automobile ECU 10.OBD diagnostic port 4 is connected with computing machine 9 by data line with serial ports 5, thus sets up computing machine 9 pairs of automobile ECU 10 data and write with a brush dipped in Chinese ink and the signal wiring of fault diagnosis.
Concrete, engine wiring harness connectivity port 6 is connected with the wire harness of engine 11, namely adopts pluggable mode to be connected, and has ensured that data are transmitted and communication safe and reliable in failure diagnostic process.
Concrete, automobile ECU connectivity port 7 is connected with automobile ECU 10, namely adopts pluggable mode to be connected, and has ensured the safe and reliable of communication in data transmission and failure diagnostic process.
Concrete, oscillograph connectivity port 8 is BNC connector, is connected with oscillograph 12 by concentric cable.
Concrete, described signal acquisition circuit 1 is multi-channel signal acquiring and output unit.Signal acquisition circuit 1, by being connected with engine wiring harness connectivity port 6, obtains the various signals of engine 11 further by engine wiring harness, it connects for automobile ECU standard interface, therefore safely, reliably, can not affect the normal operation of engine.Signal acquisition circuit 1 is by the various signals of the output engine 11 that is connected with oscillograph connectivity port 8, and the signal exported can be selected and switch.
Concrete, engine wiring harness connectivity port 6 is consistent with the grafting port of automobile ECU 10.The physical dimension of engine wiring harness connectivity port 6 and the definition of all stitch should be consistent with automobile ECU 10, and the wire harness of ability and engine 11 patches end coupling.
Concrete, the grafting port that automobile ECU connectivity port 7 and the wire harness of engine 11 patch end is consistent.The physical dimension of automobile ECU connectivity port 7 and all stitch definition should with the wire harness of engine 11 patch hold consistent, could and automobile ECU 10 patch hold mate.
Concrete, oscillograph connectivity port 8 is BNC modular connection.BNC (BritishNavalConnector) modular connection is a kind of very common RF terminal concentric cable terminator, namely what is often called thin coaxial cable interface.Bnc interface can completely cut off video input signals, makes to interfere with each other minimizing between signal, and signal bandwidth is larger than the D type interface of common 15 pins, can reach better signal response effect.In the utility model, the effect of BNC modular connection is that the engine signal gathered in order to signal acquisition circuit 1 can prepare, stable export to oscillograph 12, checks for research staff.
In engine performance performance history, research staff often needs to carry out the transformations such as wire stripping to engine wiring harness, could connect the waveform of oscilloscope display desired signal after lead-in wire, and this operation can control to cause a hidden trouble to engine health.And the system that the utility model provides serves bridge joint effect between engine and automobile ECU 10, need not carry out any transformation to engine wiring harness, the connection by means of only plug connector and cable can realize the display of required engine signal.
In addition, calibration engineer, in practical work process, often needs to carry out the operation such as data point reuse and fault diagnosis to automobile ECU.Carrying out aforesaid operations needs OBD diagnostic port 4 just can carry out, but OBD diagnostic port 4 is generally positioned on automobile, and the system that the utility model provides does not need car load platform, only need to prepare an OBD diagnostic port 4 separately, the data that can complete automobile ECU 10 are write with a brush dipped in Chinese ink and diagnostic function.Thus the work efficiency of research staff can be improved, save time and the human cost of motor car engine R & D Enterprises.
In specific embodiment of the utility model, OBD diagnostic port 4 comprises the CANHI that writes with a brush dipped in Chinese ink for ECU data high-order PIN with CANLOW low level PIN needle pin, for the KWP2000PIN stitch of the ECU diagnosis PIN needle pin relevant with power supply.
In specific embodiment of the utility model, serial ports 5 is 9 needle serial ports, and 9 needle serial ports comprise CANHI high-order PIN and the CANLOW low level PIN needle pin that ECU data are write with a brush dipped in Chinese ink.
Concrete, 9 needle serial ports and RS-232 interface are the asynchronous transmission standard interfaces formulated by Electronic Industries Association (ElectronicIndustriesAssociation, EIA).Usual RS-232 interface occurs with 9 pins (DB-9) or the kenel of 25 pins (DB-25), and in the utility model, the concrete effect of 9 needle serial ports is mainly and sends data (TXD) and receive data (RXD).
Serial ports 5 only retains the PIN needle pin definition of high-order PIN and the CANLOW low level of CANHI that automobile ECU data write with a brush dipped in Chinese ink, and the definition of all the other stitch will not retain, and is namely only preserved for carrying out to automobile ECU the function that data write with a brush dipped in Chinese ink.
In specific embodiment of the utility model, the high-order PIN needle pin of CANHI of OBD diagnostic port 4 is connected with the high-order PIN needle pin of CANHI of 9 needle serial ports and automobile ECU respectively; The CANLOW low level PIN needle pin of OBD diagnostic port 4 is connected with the CANLOW low level PIN needle pin of 9 needle serial ports and automobile ECU respectively; The KWP2000PIN stitch of described OBD diagnostic port 4 is connected with the KWP2000PIN stitch of automobile ECU.
Concrete, OBD diagnostic port 4 only retains CANHI high-order PIN with CANLOW low level PIN needle pin that automobile ECU 10 data write with a brush dipped in Chinese ink, PIN needle pin that the KWP2000PIN stitch of diagnosis is relevant with power supply defines, the definition of all the other PIN needle pin will not retain, and is namely only preserved for the function of automobile ECU being carried out to fault diagnosis.
In specific embodiment of the utility model, described power module 2 comprises a transformer, and described transformer is used for operating voltage external voltage being converted to applicable described engine signal harvester.
Concrete, the magnitude of voltage of 220V is the effective value of the most frequently used normal voltage of current China resident, i.e. the effective value of external voltage.In the utility model, system voltage should adopt the direct current of 12V, then this transformer act as the direct current alternating current of 220V being converted to 12V, to make this system worked well.
In specific embodiment of the utility model, described power module 2 also comprises the switch of a tape light, and described switch is used to indicate the duty of described engine signal harvester.
Concrete, in order to the duty of power module 2 can be seen intuitively, simultaneously in order to the easy access when fault, the switch of a tape light is set in power module 2, for controlling and show the duty of power module 2 described in this system.
In specific embodiment of the utility model, described engine signal harvester also comprises: the USB interface 3 be connected with described power module 2, and described USB interface 3 is standard interface.
Concrete, USB (UniversalSerialBus) is the english abbreviation of USB (universal serial bus), is an external bus standard, for connection and the communication of specification computer and external unit.It is the interfacing being applied in PC field.The concrete effect of the USB interface 3 in the utility model is the equipment connection such as mobile phone, portable charger, do not enumerate at this.
Below in conjunction with Fig. 1, the engine signal collection provide the utility model and ECU data are write with a brush dipped in Chinese ink and are described in detail with the course of work of the system diagnosed:
When needing in engine 11 performance development process to gather engine signal, automobile ECU 10 being connected with automobile ECU 10 connectivity port 7, thus setting up the signal wiring between automobile ECU 10 and engine 11;
Engine wiring harness connector is connected with engine wiring harness connectivity port 6, thus sets up the signal wiring of system in engine 11 and the utility model;
Oscillograph 12 is connected with oscillograph connectivity port 8, thus sets up the signal wiring of system in oscillograph 12 and the utility model.
Wherein, engine signal gatherer process is as follows:
After each part mentioned above connects confirmation, running engine 11, is connected to 220V power supply by the attaching plug of system in the utility model, the tape light switch of closed electrical source module 2.System in debugging the utility model, engine 11 signal needed for selection exports, and opens oscillograph 12 by above-mentioned Signal aspects out, carries out analysis and inspection for research staff.
When need in engine calibration process to ECU carry out data write with a brush dipped in Chinese ink and fault diagnosis time, automobile ECU 10 is connected with automobile ECU connectivity port 7, thus sets up the signal wiring of system in automobile ECU 10 and the utility model;
Computing machine 9 is connected with serial ports 6 by ITAS data line, and the hex data file write automobile ECU 10 will stored in the computer 9 with CAN protocol, successfully realizes data and write with a brush dipped in Chinese ink;
Computing machine 9 can also be connected with OBD diagnostic port 4 by K-Line data line, with K-Line Protocol diagnostic automobile ECU 10, successfully realizes malfunction elimination, and removes diagnostic trouble code wherein.
Wherein, to write with a brush dipped in Chinese ink process as follows for automobile ECU data:
Be connected with computing machine 9 by the usb data end of ITAS data line, serial ports end is connected with 9 needle serial ports 5.The attaching plug of system in the utility model is connected to 220V power supply, the tape light switch of closed electrical source module 2;
Utilize INCA software in computing machine 9 associated data files to be write in automobile ECU 10, and can feed back the progress of writing with a brush dipped in Chinese ink and write with a brush dipped in Chinese ink the problem in ECU process, process of finally writing with a brush dipped in Chinese ink terminates.
Further, automobile ECU failure diagnostic process is as follows:
AutoTune software in computing machine 9 is selected rationally arrange;
One end USB interface 3 of K-Line data line is connected with computing machine 9, and the other end is connected with OBD diagnostic port 4.The attaching plug of system in the utility model is connected to 220V power supply, the tape light switch of closed electrical source module 2;
Utilize the diagnostic trouble code in AutoTune software collection automobile ECU 10 in computing machine 9, research staff investigates problem according to diagnostic trouble code, and the diagnostic trouble code in automobile ECU 10 is removed, and last diagnostic process terminates.
To sum up, the utility model be engine performance exploitation and automatically controlled demarcate research staff provide a kind ofly to be easy to carry, engine signal collection that structure is simple, rationally distributed and ECU data write with a brush dipped in Chinese ink and the system diagnosed.This system only needs the power supply of conventional 220V, ITAS and K-Line data line and working computer, thus can improve the work efficiency of research staff, and the cost efficiency effect for enterprise is remarkable.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. an engine signal harvester, is characterized in that, comprising:
Automobile ECU connectivity port, comprises first interface and the second interface for being connected with automobile ECU;
OBD diagnostic port, the 4th interface comprising the 3rd interface for being connected with external unit and be connected with described first interface;
Serial ports, the 6th interface comprising the 5th interface for being connected with external unit and be connected with described first interface;
For receiving the engine wiring harness connectivity port of engine data;
Oscillograph connectivity port;
Signal acquisition circuit, comprises the 7th interface, the 8th interface and the 9th interface, and wherein said 7th interface is connected with described engine wiring harness connectivity port, and described 8th interface is connected with described oscillograph connectivity port; And
Power module, is electrically connected with the 9th interface of described signal acquisition circuit.
2. engine signal harvester according to claim 1, it is characterized in that, described OBD diagnostic port comprises the CANHI that writes with a brush dipped in Chinese ink for ECU data high-order PIN with CANLOW low level PIN needle pin, for the KWP2000PIN stitch of the ECU diagnosis PIN needle pin relevant with power supply.
3. engine signal harvester according to claim 2, is characterized in that, described serial ports is 9 needle serial ports, and described 9 needle serial ports comprise CANHI high-order PIN and the CANLOW low level PIN needle pin that ECU data are write with a brush dipped in Chinese ink.
4. engine signal harvester according to claim 3, is characterized in that, the high-order PIN needle pin of CANHI of described OBD diagnostic port is connected with the high-order PIN needle pin of CANHI of 9 needle serial ports and automobile ECU respectively;
The CANLOW low level PIN needle pin of described OBD diagnostic port is connected with the CANLOW low level PIN needle pin of 9 needle serial ports and automobile ECU respectively;
The KWP2000PIN stitch of described OBD diagnostic port is connected with the KWP2000PIN stitch of automobile ECU.
5. engine signal harvester according to claim 1, is characterized in that, described power module comprises a transformer, and described transformer is used for operating voltage external voltage being converted to applicable described engine signal harvester.
6. engine signal harvester according to claim 5, is characterized in that, described power module also comprises the switch of a tape light, and described switch is used to indicate the duty of described engine signal harvester.
7. engine signal harvester according to claim 1, is characterized in that, described engine signal harvester also comprises: the USB interface be connected with described power module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520900655.4U CN205091614U (en) | 2015-11-12 | 2015-11-12 | Engine signal pickup assembly |
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| CN201520900655.4U CN205091614U (en) | 2015-11-12 | 2015-11-12 | Engine signal pickup assembly |
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| CN205091614U true CN205091614U (en) | 2016-03-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111464391A (en) * | 2020-03-31 | 2020-07-28 | 潍柴动力股份有限公司 | Engine signal identification method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111464391A (en) * | 2020-03-31 | 2020-07-28 | 潍柴动力股份有限公司 | Engine signal identification method and device |
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