CN201527457U - Automobile electronic multifunctional test bench - Google Patents
Automobile electronic multifunctional test bench Download PDFInfo
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- CN201527457U CN201527457U CN2009202569596U CN200920256959U CN201527457U CN 201527457 U CN201527457 U CN 201527457U CN 2009202569596 U CN2009202569596 U CN 2009202569596U CN 200920256959 U CN200920256959 U CN 200920256959U CN 201527457 U CN201527457 U CN 201527457U
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Abstract
The utility model relates to an automobile electronic multifunctional test bench, which is mainly comprise components of a lower computer and an upper computer, wherein the lower computer, namely an automatic test bench is based on an 8-bit single chip, and the upper computer utilizes VC++ to develop. The upper computer is connected with the lower computer through an RS232-LIN interface module to save cost. According to the electrical characteristic of an LIN bus, at most 12 automobile body control modules and air-conditioner modules can be tested simultaneously. In the test process of electronic products of automobiles air-conditioners and the like and automobile body control, channel test of hardware, namely input channel test, output channel test and the like channel test and a plurality of sampling data tests can be included except traditional functional tests.
Description
Technical field
The utility model relates to a kind of test platform, the especially a kind of Body Control of automobile and automatic automobile electronic multi-functional test platform of testing of passage of Climate Control Module of being used for.
Background technology
Present most electronic product test all is based on the manual bench simulation stage, its shortcoming is the cost height, be mainly reflected in the workman on man-hour, make mistakes easily, and because the workman carries out same processing ease for a long time and causes that fatigue causes neglecting the test leakage partial function, in order to overcome the above problems, need a kind of multifunctional testing platform badly.
Summary of the invention
The purpose of this utility model is to provide a kind of automobile electronic multi-functional test platform, to substitute manual detection, avoids because of manually-operated produces error, and can detect many cover motor vehicle modules, automaticity height simultaneously.
The technical solution of the utility model is:
A kind of automobile electronic multi-functional test platform, comprise host computer, RS232_LIN interface module and a plurality of LIN_RS232 interface modules that link to each other with the RS232_LIN interface module, each LIN_RS232 interface module connects an automatically testing platform, described automatically testing platform comprises a single-chip microcomputer, the expansion input end of single-chip microcomputer connects the signal output part of input expansion module, the input end of analog signal of single-chip microcomputer connects the signal output part of analog signal selector, the analog signal selector signal input part connects the sampled data output terminal of car body control module and the sampled data output terminal of Climate Control Module, the signal output part of single-chip microcomputer connects the signal input end of output driver module, output driver module spread signal input end connects the signal output part of output expansion module, the signal output part of output driver module connects display module, the communication signal end connecting interface circuit module of output driver module, interface module connects the LIN_RS232 interface module.
Described display module is a charactron.
Described automatically testing platform also comprises gauge tap, and gauge tap connects the input end of analog signal of single-chip microcomputer.The sampled data of described car body control module comprises the test data of car light, windscreen wiper, lock, vehicle window, heating defrosting, seat belt status, bonnet state, boot state and burglar alarm.
The sampled data of described Climate Control Module comprises engine rotational speed signal, new wind air door actuator failures signal, pattern air door actuator failures signal, temperature air door actuator failures signal, clinostatism and ventilation air door actuator failures signal, pressure anomaly signal, the outer temperature sensor fault-signal of car, vehicle interior temperature sensor fault signal, sunlight sensor fault-signal, cooling-water temperature sensor fault-signal, evaporator temperature sensor fault-signal.
Continuous between described automatically testing platform by output expansion module separately.
The power supply signal end VBAT of described output driver module connects pulse coupling circuit, this pulse coupling circuit comprises two pulse signal input terminals, two pulse signal input terminals connect the collector of the base stage of NPN type power tube and positive-negative-positive power tube respectively and pass through resistance eutral grounding, the collector of NPN type power tube connects the base stage of positive-negative-positive power tube by current-limiting resistance, the emitter of positive-negative-positive power tube is provided with current-limiting resistance as the output terminal of power supply signal VBC between the output terminal of NPN type power tube and power supply signal VBC.
Described car body control module is connected with analog signal selector by automobile bus extended chip and corresponding interface circuits module with the sampled data output terminal of Climate Control Module.
Automobile electronic multi-functional test platform of the present utility model mainly is divided into two ingredients, slave computer and host computer, and slave computer, i.e. automatically testing platform, based on 8 single-chip microcomputers, host computer utilizes the VC++ exploitation.In order to save cost, host computer connects with the sampling RS232-LIN interface module that is connected of slave computer, according to the electrical specification of LIN bus, can carry out the test of 12 car body control modules and Climate Control Module simultaneously at most.
The beneficial effects of the utility model are:
Automobile electronic multi-functional test platform of the present utility model is in the test process of electronic products such as body of a motor car control and air conditioning for automobiles, except traditional functional test, the lane testing that can also comprise hardware, be the test of passages such as the input of main control chip and output, and the test of some sampled datas.General method of testing needs omnidistance artificial the supervision, and carries out writing task.This multifunctional testing platform is directly used micro computer monitoring, has reduced cost of labor.After the host computer operation, constantly monitor the data that slave computer sends over, and analyze data automatically, whether the passage of judging correlation module is intact, when demonstrating the result automatically, host computer can note data in the mode of excel form convenient later checking and keeping in repair.
Description of drawings
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is the theory diagram of automatically testing platform of the present utility model.
Fig. 3 is one of electrical schematic diagram of the present utility model.
Fig. 4 is two of an electrical schematic diagram of the present utility model.
Fig. 5 is three of an electrical schematic diagram of the present utility model.
Fig. 6 is four of an electrical schematic diagram of the present utility model.
Fig. 7 is the software flow pattern that computer control of the present utility model is carried out.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
A kind of automobile electronic multi-functional test platform, comprise host computer, RS232_LIN interface module and 12 LIN_RS232 interface modules that link to each other with the RS232_LIN interface module, each LIN_RS232 interface module connects an automatically testing platform, described automatically testing platform comprises a single-chip microcomputer, the expansion input end of single-chip microcomputer connects the signal output part of input expansion module, the input end of analog signal of single-chip microcomputer connects the signal output part of analog signal selector, the analog signal selector signal input part connects the sampled data output terminal of car body control module and the sampled data output terminal of Climate Control Module, the signal output part of single-chip microcomputer connects the signal input end of output driver module, output driver module spread signal input end connects the signal output part of output expansion module, the signal output part of output driver module connects display module, the communication signal end connecting interface circuit module of output driver module, interface module connects the LIN_RS232 interface module.
The RS232_LIN interface module adopts serial communication interface to connect the com interface of host computer, as communication bus interface, and expands a plurality of RS232_LIN interface modules of connection, is used for adopting serial communication interfaces to be connected with a plurality of automatically testing platforms.
Display module is a charactron, is used to show fault-signal or alerting signal.
Automatically testing platform also comprises gauge tap, and gauge tap connects the input end of analog signal of single-chip microcomputer.
The sampled data of car body control module comprises the test data of systemic-functions such as car light, windscreen wiper, lock, vehicle window, heating defrosting, seat belt status, bonnet state, boot state and burglar alarm.The output terminal of vehicle body module connects corresponding in kind, such as automotive window rise and fall topworks, and lock mechanism, car light and other function adopt the light on and off of bulb to represent.
The sampled data of Climate Control Module comprises engine rotational speed signal, new wind air door actuator failures signal, pattern air door actuator failures signal, temperature air door actuator failures signal, clinostatism and ventilation air door actuator failures signal, pressure anomaly signal, the outer temperature sensor fault-signal of car, vehicle interior temperature sensor fault signal, sunlight sensor fault-signal, cooling-water temperature sensor fault-signal, evaporator temperature sensor fault-signal.
Engine rotational speed signal is the pulse train signal, and actuator is to adopt direct current generator, the simulating signal of automatically testing platform pick-up transducers.
Continuous between automatically testing platform by output expansion module separately.
The power supply signal end VBAT of output driver module connects pulse coupling circuit, this pulse coupling circuit comprises two pulse signal input terminals, two pulse signal input terminals connect the collector of the base stage of NPN type power tube and positive-negative-positive power tube respectively and pass through resistance eutral grounding, the collector of NPN type power tube connects the base stage of positive-negative-positive power tube by current-limiting resistance, the emitter of positive-negative-positive power tube is provided with current-limiting resistance as the output terminal of power supply signal VBC between the output terminal of NPN type power tube and power supply signal VBC.
Car body control module is connected with analog signal selector by automobile bus extended chip and corresponding interface circuits module with the sampled data output terminal of Climate Control Module.
Single-chip microcomputer adopts the MC68HC908GR16CFA single-chip microcomputer of Motorola, it is the chip of 74HC151 that input expansion module adopts model, it is the chip of HEF4094 that the output expansion module adopts model, it is the chip of MC1413 that the output driver module adopts model, analog signal selector is that model is HEF4051, and the automobile bus extended chip is that model is the extended chip of MC33399.
Automobile electronic multi-functional test platform of the present utility model mainly is divided into two ingredients, slave computer and host computer, and slave computer, i.e. automatically testing platform, based on 8 single-chip microcomputers, host computer utilizes the VC++ exploitation.In order to save cost, host computer connects with the sampling RS232-LIN interface module that is connected of slave computer, according to the electrical specification of LIN bus, can carry out the test of 12 car body control modules and Climate Control Module simultaneously at most.
In the utility model, connect expression and be electrically connected, in circuit structure of the present utility model, except predetermined annexation, other element that can be electrically connected can also be set betwixt, as switching device, transistor, diode, capacity cell, resistance original paper etc.
Claims (8)
1. automobile electronic multi-functional test platform, comprise host computer, RS232_LIN interface module and a plurality of LIN_RS232 interface modules that link to each other with the RS232_LIN interface module, it is characterized in that each LIN_RS232 interface module connects an automatically testing platform, described automatically testing platform comprises a single-chip microcomputer, the expansion input end of single-chip microcomputer connects the signal output part of input expansion module, the input end of analog signal of single-chip microcomputer connects the signal output part of analog signal selector, the analog signal selector signal input part connects the sampled data output terminal of car body control module and the sampled data output terminal of Climate Control Module, the signal output part of single-chip microcomputer connects the signal input end of output driver module, output driver module spread signal input end connects the signal output part of output expansion module, the signal output part of output driver module connects display module, the communication signal end connecting interface circuit module of output driver module, interface module connects the LIN_RS232 interface module.
2. automobile electronic multi-functional test platform according to claim 1 is characterized in that described display module is a charactron.
3. automobile electronic multi-functional test platform according to claim 1 is characterized in that described automatically testing platform also comprises gauge tap, and gauge tap connects the input end of analog signal of single-chip microcomputer.
4. automobile electronic multi-functional test platform according to claim 1, the sampled data that it is characterized in that described car body control module comprises the test data of car light, windscreen wiper, lock, vehicle window, heating defrosting, seat belt status, bonnet state, boot state and burglar alarm.
5. automobile electronic multi-functional test platform according to claim 1 is characterized in that the sampled data of described Climate Control Module comprises engine rotational speed signal, new wind air door actuator failures signal, pattern air door actuator failures signal, temperature air door actuator failures signal, clinostatism and ventilation air door actuator failures signal, pressure anomaly signal, the outer temperature sensor fault-signal of car, vehicle interior temperature sensor fault signal, sunlight sensor fault-signal, cooling-water temperature sensor fault-signal, evaporator temperature sensor fault-signal.
6. automobile electronic multi-functional test platform according to claim 1 is characterized in that between described automatically testing platform continuous by output expansion module separately.
7. automobile electronic multi-functional test platform according to claim 1, the power supply signal end VBAT that it is characterized in that described output driver module connects pulse coupling circuit, this pulse coupling circuit comprises two pulse signal input terminals, two pulse signal input terminals connect the collector of the base stage of NPN type power tube and positive-negative-positive power tube respectively and pass through resistance eutral grounding, the collector of NPN type power tube connects the base stage of positive-negative-positive power tube by current-limiting resistance, the emitter of positive-negative-positive power tube is provided with current-limiting resistance as the output terminal of power supply signal VBC between the output terminal of NPN type power tube and power supply signal VBC.
8. automobile electronic multi-functional test platform according to claim 1 is characterized in that described car body control module is connected with analog signal selector by automobile bus extended chip and corresponding interface circuits module with the sampled data output terminal of Climate Control Module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202569596U CN201527457U (en) | 2009-11-11 | 2009-11-11 | Automobile electronic multifunctional test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202569596U CN201527457U (en) | 2009-11-11 | 2009-11-11 | Automobile electronic multifunctional test bench |
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| Publication Number | Publication Date |
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| CN201527457U true CN201527457U (en) | 2010-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202569596U Expired - Fee Related CN201527457U (en) | 2009-11-11 | 2009-11-11 | Automobile electronic multifunctional test bench |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801572A (en) * | 2011-05-26 | 2012-11-28 | 上海固泰科技有限公司 | LIN (Local Interconnect Network) bus physical layer testing method |
-
2009
- 2009-11-11 CN CN2009202569596U patent/CN201527457U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801572A (en) * | 2011-05-26 | 2012-11-28 | 上海固泰科技有限公司 | LIN (Local Interconnect Network) bus physical layer testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20131111 |