CN101718631A - Automobile electronic multi-functional test platform - Google Patents
Automobile electronic multi-functional test platform Download PDFInfo
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- CN101718631A CN101718631A CN200910234300A CN200910234300A CN101718631A CN 101718631 A CN101718631 A CN 101718631A CN 200910234300 A CN200910234300 A CN 200910234300A CN 200910234300 A CN200910234300 A CN 200910234300A CN 101718631 A CN101718631 A CN 101718631A
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Abstract
The invention relates to an automobile electronic multi-functional test platform which is mainly divided into two constituent parts, including a lower computer and an upper computer, the lower computer is an automatic test platform and is based on a 8-bit singlechip, and the upper computer is developed by utilizing VC++; in order to same cost, the upper computer and the lower computer are connected by adopting an RS232-LIN interface module, according to the electrical characteristics of an LIN bus, the test of twelve body control modules and air conditioning modules can be simultaneously carried out at most; in the test process of body control and electronic products such as an automobile air conditioner, besides the traditional functional test, the automobile electronic multi-functional test platform further comprises hardware channel test, that is, the test of a channel of input and output of a master control chip and the test of sampling data.
Description
Technical field
The present invention 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 object of the present invention is to provide a kind of automobile electronic multi-functional test platform,, avoid, and can detect many cover motor vehicle modules, automaticity height simultaneously because of manually-operated produces error to substitute manual detection.
Technical scheme of the present invention 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 invention 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 invention has the beneficial effects as follows:
Automobile electronic multi-functional test platform of the present invention 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 invention.
Fig. 2 is the theory diagram of automatically testing platform of the present invention.
Fig. 3 is one of electrical schematic diagram of the present invention.
Fig. 4 is two of an electrical schematic diagram of the present invention.
Fig. 5 is three of an electrical schematic diagram of the present invention.
Fig. 6 is four of an electrical schematic diagram of the present invention.
Fig. 7 is the software flow pattern that computer control of the present invention is carried out.
Embodiment
Below in conjunction with accompanying drawing the present invention 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 invention 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 present invention, connect expression and be electrically connected, in circuit structure of the present invention, 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.
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| CN200910234300A CN101718631A (en) | 2009-11-19 | 2009-11-19 | Automobile electronic multi-functional test platform |
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| CN200910234300A CN101718631A (en) | 2009-11-19 | 2009-11-19 | Automobile electronic multi-functional test platform |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608996A (en) * | 2012-03-28 | 2012-07-25 | 重庆集诚汽车电子有限责任公司 | Testing system and method applied to body control module (BCM) |
| CN103631256A (en) * | 2013-12-03 | 2014-03-12 | 北京亚新科天纬油泵油嘴股份有限公司 | Engine signal simulation test bench and method of testing ECU (electronic control unit) therebof |
| CN104597896A (en) * | 2015-01-23 | 2015-05-06 | 安徽通宇电子股份有限公司 | Data-driven automotive electronic control unit automated testing method |
| CN107592239A (en) * | 2017-08-31 | 2018-01-16 | 中国第汽车股份有限公司 | A kind of CAN network power supply changes automatic test device and its method |
| CN108007607A (en) * | 2017-12-28 | 2018-05-08 | 惠州市德赛西威汽车电子股份有限公司 | A kind of vehicle interior temperature sensor detector |
-
2009
- 2009-11-19 CN CN200910234300A patent/CN101718631A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608996A (en) * | 2012-03-28 | 2012-07-25 | 重庆集诚汽车电子有限责任公司 | Testing system and method applied to body control module (BCM) |
| CN102608996B (en) * | 2012-03-28 | 2014-09-17 | 重庆集诚汽车电子有限责任公司 | Testing system and method applied to body control module (BCM) |
| CN103631256A (en) * | 2013-12-03 | 2014-03-12 | 北京亚新科天纬油泵油嘴股份有限公司 | Engine signal simulation test bench and method of testing ECU (electronic control unit) therebof |
| CN103631256B (en) * | 2013-12-03 | 2016-02-10 | 北京亚新科天纬油泵油嘴股份有限公司 | A kind of method of engine signal analog simulation test board and test ECU thereof |
| CN104597896A (en) * | 2015-01-23 | 2015-05-06 | 安徽通宇电子股份有限公司 | Data-driven automotive electronic control unit automated testing method |
| CN107592239A (en) * | 2017-08-31 | 2018-01-16 | 中国第汽车股份有限公司 | A kind of CAN network power supply changes automatic test device and its method |
| CN108007607A (en) * | 2017-12-28 | 2018-05-08 | 惠州市德赛西威汽车电子股份有限公司 | A kind of vehicle interior temperature sensor detector |
| CN108007607B (en) * | 2017-12-28 | 2020-06-05 | 惠州市德赛西威汽车电子股份有限公司 | In-car temperature sensor testing device |
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Open date: 20100602 |