CN202018601U - Handheld gas engine fault diagnostic instrument - Google Patents
Handheld gas engine fault diagnostic instrument Download PDFInfo
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- CN202018601U CN202018601U CN 201120001545 CN201120001545U CN202018601U CN 202018601 U CN202018601 U CN 202018601U CN 201120001545 CN201120001545 CN 201120001545 CN 201120001545 U CN201120001545 U CN 201120001545U CN 202018601 U CN202018601 U CN 202018601U
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Abstract
The utility model discloses a handheld gas engine fault diagnostic instrument, and belongs to the field of fault diagnosis. The diagnostic instrument includes a display module, a keyboard module, an interface module, a CAN communication module, and a 24V power supply conversion module, and adopts an MCU module to replace a conventional DSP, wherein the MCU module is connected with the display module, a calendar clock module, the keyboard module, the CAN communication module, and the 24V power supply conversion module respectively, and the interface module is connected with the CAN communication module. Because a 16-digit MCU module is adopted to replace the DSP, the manufacturing cost is greatly reduced on the basis of guaranteeing the basic diagnostic function of the diagnostic instrument.
Description
Technical field
The utility model relates to a kind of gas engine failure diagnostic apparatus, particularly a kind of hand-held gas engine failure diagnostic apparatus.
Background technology
Along with progress of science and technology, the technology and the automotive engineering of a plurality of directions such as electronic technology, automatic technology, control technology combine together, the fusion of many technology has brought the develop rapidly of automotive field and the variation of automobile function, controlling of automobile is also more and more convenient, but multidisciplinary fusion in the automotive engineering direction has increased difficulty also for the fault detect and the maintenance of automobile, so how fast and accurately detection failure, fixing a breakdown timely has important engineering significance.
Under the drive of market and engineering application demand, the equipment development merchant develops the fault detection system for automobile of form and diverse in function, and its key property is to adopt display screen, the hardware integrated circuit board, and operation keyboard, interface forms a structural entity.This diagnostic device is often in order to provide abundant operation interface and strong functions, and adopt expensive device (such as control device DSP(digital singnal processor, digital signal processor) and ARM(Advanced RISC Machines, be a class processor)), and the more complete diagnostic device of function ratio is normally based on PC(Personal Computer, PC) platform, this structure has not only reduced portability of equipment, has also increased the cost of equipment.
The utility model content
Goal of the invention of the present utility model is: at the problem of above-mentioned existence, provide a kind of on the basis that guarantees diagnostic equipment basic diagnosis function, reduce the hand-held gas engine failure diagnostic apparatus of manufacturing cost.
The technical solution adopted in the utility model is as follows: this hand-held gas engine failure diagnostic apparatus, comprise power transfer module, Keysheet module, interface module, CAN communication module and display module, it is characterized in that: also comprise MCU module and calendar clock module, wherein
Power transfer module links to each other with the MCU module, is used for providing electric energy to the MCU module;
Keysheet module links to each other with the MCU module, and wherein Keysheet module output control signal (7) is used for controlling the MCU module for the MCU module, and the MCU module is according to control signal (7) output instruction signal (4) in data acquisition;
Interface module respectively with gas engine, described two-way connection of CAN communication module, and the CAN communication module is connected with the MCU module is two-way, wherein command signal (4) transfers to gas engine by CAN communication module, interface module successively, gas engine is gathered its running state information (2) and failure message (3) according to command signal (4), and running state information (2) and failure message (3) are transferred to the MCU module by interface module, CAN communication module successively;
The calendar clock module is connected with the MCU module is two-way, wherein the calendar clock module is transferred to the MCU module with temporal information (6) in real time, and MCU module output time under the control of Keysheet module is revised signal (5) so that the time in the described calendar clock module to be set;
Display module links to each other with the MCU module, be used for receiving running state information (2), failure message (3) and the temporal information (6) of MCU module and under the control of Keysheet module with its etc. show.Preferably, power transfer module is selected the power transfer module of 24V for use; The MCU module is selected 16 MC9S12DP512 chip for use.
According to an embodiment of the present utility model, this diagnostic equipment also comprises and the two-way Flash storer that is connected of MCU module, in order to storage diagnostic equipment needed figure and by the described figure of MCU module invokes in operational process; The Flash storer is including but not limited to the Flash storer of W25Q80 model.
According to another embodiment of the present utility model, this diagnostic equipment also comprises the SD memory module that links to each other with the MCU module, in order to running state information (2) in the real-time storage MCU module and time information corresponding (6).
According to another embodiment of the present utility model, this diagnostic equipment also comprises the PC serial module, wherein PC and interface module, interface module and PC serial module, PC serial module and MCU module are distinguished two-way the connection, in order to realize the mutual communication of PC and MCU module.
In sum, owing to adopted technique scheme, the beneficial effects of the utility model are:
1, employing MCU module replaces DSP or the ARM in traditional diagnostic equipment, on the basis that guarantees the diagnostic equipment basic function, greatly reduces the manufacturing cost of diagnostic equipment;
2, adopt low-cost Flash storer to store the needed pictures of operation such as start or shutdown, further reduced manufacturing cost;
3, the SD memory module that is connected with the MCU module of employing, can store the running state information and the temporal information of the gas engine that collects from gas engine), so that diagnostic personnel can be set up database, the gas engine fault is carried out more detailed analysis;
4, set up respectively the PC serial module that is connected with the MCU module with interface module, make diagnostic equipment not only can pass through CAN communication module and the mutual communication of gas engine, can also pass through PC serial module and the mutual communication of PC, realize further expanding the diagnostic equipment function via PC.
Description of drawings
Fig. 1 is the inner structure synoptic diagram of this hand-held gas engine failure diagnostic apparatus;
Fig. 2 is according to an embodiment of the present utility model, the inner structure synoptic diagram of this hand-held gas engine failure diagnostic apparatus;
Fig. 3 is according to another embodiment of the present utility model, the inner structure synoptic diagram of this hand-held gas engine failure diagnostic apparatus;
Fig. 4 is according to another embodiment of the present utility model, the inner structure synoptic diagram of this hand-held combustion gas transmitter failure diagnostic apparatus.
Mark among the figure: 1 is the diagnostic equipment inner structure, and 2 is running state information, and 3 is failure message, and 4 is command signal, and 5 is the time modification signal, and 6 is temporal information, and 7 is control signal.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Existing hand-held gas engine failure diagnostic apparatus is in order to provide the more operation interface and the strong functions of horn of plenty, adopts DSP usually and constitutes diagnostic equipment such as a plurality of peripherals of RAM.For example, diagnostic equipment commonly used adopts color screen to come operation display interface, and the realization of color screen needs higher configuration in diagnostic equipment, need set up a plurality of other devices and cooperate it to show, thereby increase the cost of making diagnostic equipment.In fact, no matter whether the display screen of diagnostic equipment is color screen, whether needs strong functions more, and the final purpose of diagnostic equipment all is the fault diagnosis of gas engine.Thus, the utility model has been simplified original diagnostic equipment, on the basis that guarantees diagnostic equipment basic diagnosis function, has reduced its manufacturing cost.
The synoptic diagram of this diagnostic equipment inner structure 1 as shown in Figure 1, this hand-held gas engine diagnostic equipment is mainly by power transfer module, interface module, MCU(Micro Control Unit, micro-control unit) module, CAN(Controller Area Network, controller local area network) communication module, display module, calendar clock module and Keysheet module constitute, wherein power transfer module links to each other with the MCU module, and being used for provides electric energy to this MCU module.Preferably, this power transfer module is selected the 24V power transfer module for use, the direct supply of its external effective voltage range between 10～30V, and the power supply by this direct supply being converted to 24V is with to the MCU module for power supply.Gas engine and interface module, interface module and CAN communication module, CAN communication module and MCU module be two-way the connection respectively, and the MCU module is connected with the calendar clock module is two-way, the MCU module respectively with display module, Keysheet module is unidirectional links to each other.
Diagnostic equipment comprises following steps to the failure diagnostic process of gas engine:
Step 1: diagnostic equipment is connected by interface module and gas engine (the ECU(Electronic Control Unit of electric injection system wherein, electronic control unit);
Step 2: be used for controlling the action of MCU module by Keysheet module output control signal 7, the MCU module is according to control signal 7 output instruction signals 4 in data acquisition, this command signal 4 transfers to gas engine by CAN communication module, interface module successively, gas engine begins to gather its running state information 2 and failure message 3 according to this command signal 4, and these two kinds of information transfer to the MCU module by interface module, CAN communication module successively;
Step 3: the calendar clock module that is connected with the MCU module is transferred to the MCU module with time information corresponding 6 in real time, in the MCU module, be formed with running state information 2, failure message 3 and temporal information 6 thus, in addition, the MCU module can also send a time modification signal so that the time in the calendar clock module is adjusted to the calendar clock module under the control of Keysheet module;
Step 4: the MCU module can be transferred to running state information 2, failure message 3 and current information of time 6 the display module demonstration respectively under the control of Keysheet module, such as when diagnostic personnel only need show running state information 2, can realize by the respective keys of pressing in the Keysheet module.
Preferably, this MCU module is selected 16 MC9S12DP512 chip for use.It should be noted that this MCU module is including but not limited to this kind chip.In this diagnostic equipment,, greatly reduce the manufacturing cost of diagnostic equipment owing to adopted 16 MCU module to replace the DSP of traditional employing.
According to an embodiment of the present utility model, in the design process of diagnostic equipment,, under the situation of the memory space inadequate of MCU module, the image that dynamically shows can be stored in the Flash storer if want on its operation interface to make some kinematic insert.For example, the picture of start that occurs when diagnostic equipment start or shutdown or shutdown picture just can be stored in the Flash storer.As shown in Figure 2, the Flash storer of setting up in the diagnostic equipment is connected with the MCU module is two-way, so that when the MCU module needs it is called.Preferably, this Flash storer is selected the Flash storer of the W25Q80 model of 4M for use.It should be noted that this Flash storer is including but not limited to this kind chip.Owing to adopted low-cost Flash storer, further reduced the manufacturing cost of diagnostic equipment in this diagnostic equipment.
According to another embodiment of the present utility model, in failure diagnostic process, diagnostic personnel can not detect gas engine constantly, so can store the running state information 2 of the real-time detected gas engine of diagnostic equipment by a SD memory module is set.The structural representation of diagnostic equipment as shown in Figure 3 after the newly-increased SD memory module, the SD memory module is connected with the MCU module, and the running state information 2 that the MCU module will be wherein under the control of Keysheet module or the combination of running state information 2 and temporal information 6 are transferred to the SD memory module.Diagnostic equipment can will be stored gas engine running state information when 2 according to the actual conditions setting.For example, when a certain period, diagnostic personnel is owing to reason such as go on business can not detect gas engine, the MCU module can be set to be stored in the running state information 2 of this section period gas engine in the SD memory module, can also will be stored in the SD memory module simultaneously, so that diagnostic personnel analysis and set up database information with running state information 2 corresponding temporal informations 6.
According to another embodiment of the present utility model, owing to can only realize basic diagnostic function according to the diagnostic equipment that above-mentioned design proposal is made, if realize that more complete diagnostic function then will be based on the diagnostic means of PC platform, therefore in this diagnostic equipment, can also set up the PC serial module, as shown in Figure 4, interface module is except with gas engine is connected, also be connected with PC, this PC serial module is connected with the MCU module is two-way with interface module respectively, thereby realizes the both-way communication of PC and MCU module.PC can be controlled the operation of MCU module, and the MCU module also can be given PC with the data upload that collects, and then has realized further expanding of diagnostic equipment function.
By loading on the software and the peripherals that is connected with this MCU module on the MCU module, can realize in the utility model gas engine Fault Diagnosis, analysis, demonstration and record.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. a hand-held gas engine failure diagnostic apparatus comprises power transfer module, Keysheet module, interface module, CAN communication module and display module, it is characterized in that: also comprise MCU module and calendar clock module, wherein
Described power transfer module links to each other with described MCU module, is used for providing electric energy to described MCU module;
Described Keysheet module links to each other with described MCU module, wherein said Keysheet module output control signal (7) is used for controlling described MCU module for described MCU module, in the module of MCU described in the data acquisition according to described control signal (7) output instruction signal (4);
Described interface module respectively with gas engine, described two-way connection of CAN communication module, and described CAN communication module and described two-way connection of MCU module, wherein said command signal (4) transfers to described gas engine by described CAN communication module, described interface module successively, described gas engine is gathered its running state information (2) and failure message (3) according to described command signal (4), and described running state information (2) and described failure message (3) are transferred to described MCU module by described interface module, described CAN communication module successively;
Described calendar clock module and described two-way connection of MCU module, wherein said calendar clock module is transferred to described MCU module with temporal information (6) in real time, and described MCU module output time under the control of described Keysheet module is revised signal (5) so that the time in the described calendar clock module to be set;
Described display module links to each other with described MCU module, be used for receiving the described running state information (2) of described MCU module, described failure message (3) and described temporal information (6) and under the control of described Keysheet module with its etc. show.
2. hand-held gas engine failure diagnostic apparatus as claimed in claim 1, it is characterized in that: also comprise and the two-way Flash storer that is connected of described MCU module, in order to store described diagnostic equipment needed figure and by the described figure of described MCU module invokes in operational process.
3. hand-held gas engine failure diagnostic apparatus as claimed in claim 1 or 2, it is characterized in that: also comprise the SD memory module that links to each other with described MCU module, in order to described running state information (2) in the described MCU module of real-time storage and corresponding described temporal information (6).
4. hand-held gas engine failure diagnostic apparatus as claimed in claim 3, it is characterized in that: also comprise the PC serial module, wherein PC and described interface module, described interface module and described PC serial module, described PC serial module and described MCU module are distinguished two-way the connection, in order to realize the mutual communication of described PC and described MCU module.
5. hand-held gas engine failure diagnostic apparatus as claimed in claim 1, it is characterized in that: described power transfer module is selected the power transfer module of 24V for use.
6. hand-held gas engine failure diagnostic apparatus as claimed in claim 1 is characterized in that: described MCU module is selected 16 MC9S12DP512 chip for use.
7. hand-held gas engine failure diagnostic apparatus as claimed in claim 2 is characterized in that: described Flash storer is selected the W25Q80 chip of 4M for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120001545 CN202018601U (en) | 2011-01-05 | 2011-01-05 | Handheld gas engine fault diagnostic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120001545 CN202018601U (en) | 2011-01-05 | 2011-01-05 | Handheld gas engine fault diagnostic instrument |
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| Publication Number | Publication Date |
|---|---|
| CN202018601U true CN202018601U (en) | 2011-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120001545 Expired - Lifetime CN202018601U (en) | 2011-01-05 | 2011-01-05 | Handheld gas engine fault diagnostic instrument |
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| CN (1) | CN202018601U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590761A (en) * | 2012-02-17 | 2012-07-18 | 昆山弗尔赛能源有限公司 | Controller area network (CAN)-based fuel cell standby power system online diagnosis instrument |
| CN104502857A (en) * | 2014-12-30 | 2015-04-08 | 天津清源电动车辆有限责任公司 | CAN (controller area network) bus based portable online diagnostic apparatus for lithium battery systems |
-
2011
- 2011-01-05 CN CN 201120001545 patent/CN202018601U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590761A (en) * | 2012-02-17 | 2012-07-18 | 昆山弗尔赛能源有限公司 | Controller area network (CAN)-based fuel cell standby power system online diagnosis instrument |
| CN104502857A (en) * | 2014-12-30 | 2015-04-08 | 天津清源电动车辆有限责任公司 | CAN (controller area network) bus based portable online diagnostic apparatus for lithium battery systems |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20111026 |
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| CX01 | Expiry of patent term |