CN103558848A - Tester for testing various signal functions of vehicle control unit of new energy automobile and method using same - Google Patents
Tester for testing various signal functions of vehicle control unit of new energy automobile and method using same Download PDFInfo
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- CN103558848A CN103558848A CN201310573340.9A CN201310573340A CN103558848A CN 103558848 A CN103558848 A CN 103558848A CN 201310573340 A CN201310573340 A CN 201310573340A CN 103558848 A CN103558848 A CN 103558848A
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Abstract
The invention discloses a tester for testing various signal functions of a vehicle control unit of a new energy automobile. The tester for testing the various signal functions of the vehicle control unit of the new energy automobile comprises a single-chip microcomputer, a power module, a storage module, an opto-isolator circuit, an RC filter circuit, a PWM acquisition module, a CAN bus receiving and sending module, a quartz crystal oscillator, a driving and amplifying circuit, a digital-to-analogue conversion module, a PWM output module, an SPI interface driving module and a dot matrix liquid crystal display. The invention further provides a method using the tester for testing the various signal functions of the vehicle control unit of the new energy automobile.
Description
Technical field
The invention belongs to the technical field of new-energy automobile, relate to particularly a kind of controller of new energy automobile multi-signal functional tester, also relate to the method for utilizing this controller of new energy automobile multi-signal functional tester.
Background technology
Entire car controller is as the key components and parts as pure electric automobile, and the quality of its function will affect the reliability of car load and personnel's safety.Entire car controller is as the control center of car load, bearing the transmitting-receiving of switching signal, the transmitting-receiving of the acceptance conversion of simulating signal, pulse signal, with the function such as other control module communications, these signals can normally receive and dispatch and Collect conversion by the serious normal operation that affects each parts of car load.Therefore the factory that enters of entire car controller is detected when development and follow-up volume production, all very important for the functional test of the multi-signal of new forms of energy car entire car controller.
The test of present stage for entire car controller switching signal, pulse signal, simulating signal, CAN communication module etc. needs configuration signal generator, oscillograph, host computer etc. mostly, for host computer, also needs carry out modeling and write with some programming languages.Whole process line is complicated easily chaotic, it is longer that test macro is built the cycle, reliability and security to test have a certain impact, and equipment needed thereby instrument is more takies more space, tester need to possess certain programming modeling ability, requirement to test man is higher, is not suitable for the batch testing check of entire car controller after volume production.
Summary of the invention
For overcoming the defect of prior art, the technical problem to be solved in the present invention has been to provide a kind of controller of new energy automobile multi-signal functional tester, and it reduces equipment cost, it is little to take up room, reduce that test macro is built the cycle, the factory that enters that reduces when test man's Capability Requirement, the requirement that makes test not only meet research and development Qualify Phase are also applicable to batch production is detected.
Technical scheme of the present invention is: this controller of new energy automobile multi-signal functional tester, and it comprises single-chip microcomputer, power module, memory module, optical coupling isolation circuit, RC filtering circuit, PWM acquisition module, CAN bus transceiver module, quartz oscillator, drive amplification circuit, D/A converter module, PWM output module, SPI interface driver module, lattice lcd screen, single-chip microcomputer respectively with power module, memory module, optical coupling isolation circuit, RC filtering circuit, PWM acquisition module, CAN bus transceiver module, quartz oscillator, drive amplification circuit, D/A converter module, PWM output module, SPI interface driver module, lattice lcd screen connects, CAN bus transceiver module is connected with the CAN bus run of controller of new energy automobile, power module is connected with outside power supply, SPI interface driver module is connected with lattice lcd screen, switching value input signal is inputted single-chip microcomputer and is provided switching value to export by drive amplification circuit by optical coupling isolation circuit, analog input signal is by RC filtering circuit input single-chip microcomputer and provide analog output by D/A converter module, and PWM input signal is by PWM acquisition module input single-chip microcomputer and provide PWM to export by PWM output module.
A kind of method of utilizing controller of new energy automobile multi-signal functional tester is also provided, and the method comprises the following steps:
(1) user selects test event by button;
(2) judging whether to enter test, is to perform step (3), otherwise red result pilot lamp lights and hummer sounds and performs step (9);
(3) tester sends request Frame to to-be-measured cell;
(4) judge whether to-be-measured cell receives the request data frame that tester is sent, and is to perform step (5), otherwise to-be-measured cell damages, red result pilot lamp lights and hummer sounds and performs step (9);
(5) to-be-measured cell sends responsive data frame to tester;
(6) tester receives responsive data frame, switches corresponding test module;
(7) by corresponding test zone result indicator result of determination, tested and retreated to master menu;
(8) judging whether to-be-measured cell finishes test, is to perform step (9), otherwise execution step (1);
(9) finish.
Because this controller of new energy automobile multi-signal functional tester is by producing switching value signal, analog signals, pulse signal is as the input signal of entire car controller to be measured, can carry out CAN communication with entire car controller to be measured, and can detect the switching value signal that entire car controller feeds back, analog signals and pulse signal, can cancel host computer, display, the equipment such as signal generating circuit, so reduction equipment cost, take up room little, reduce test macro and build the cycle, the Capability Requirement of reduction to test man, the factory that the enters when requirement that makes test not only meet research and development Qualify Phase is also applicable to batch production is detected.
Accompanying drawing explanation
Fig. 1 is according to the circuit theory diagrams of controller of new energy automobile multi-signal functional tester of the present invention;
Fig. 2 is the schematic diagram of panel of the controller of new energy automobile multi-signal functional tester of Fig. 1;
Fig. 3 is the process flow diagram that utilizes the method for controller of new energy automobile multi-signal functional tester according to of the present invention.
Embodiment
As shown in Figure 1, this controller of new energy automobile multi-signal functional tester, it comprises single-chip microcomputer, power module, memory module, optical coupling isolation circuit, RC filtering circuit, PWM acquisition module, CAN bus transceiver module, quartz oscillator, drive amplification circuit, D/A converter module, PWM output module, SPI interface driver module, lattice lcd screen, single-chip microcomputer respectively with power module, memory module, optical coupling isolation circuit, RC filtering circuit, PWM acquisition module, CAN bus transceiver module, quartz oscillator, drive amplification circuit, D/A converter module, PWM output module, SPI interface driver module, lattice lcd screen connects, CAN bus transceiver module is connected with the CAN bus run of controller of new energy automobile, power module is connected with outside power supply, SPI interface driver module is connected with lattice lcd screen, switching value input signal is inputted single-chip microcomputer and is provided switching value to export by drive amplification circuit by optical coupling isolation circuit, analog input signal is by RC filtering circuit input single-chip microcomputer and provide analog output by D/A converter module, and PWM input signal is by PWM acquisition module input single-chip microcomputer and provide PWM to export by PWM output module.
Preferably, memory module is FLASH memory module.
Preferably, as shown in Figure 2, this tester also comprises panel, and lattice lcd screen is all arranged on panel, is also provided with button, power switch, pilot lamp, knob on panel.In Fig. 2, pilot lamp 3.1-CAN1 corresponding to 1-functional test button 2-functional test button selects button 3.2-CAN1 to select pilot lamp 4.1-CAN2 to select button 4.2-CAN2 to select pilot lamp 5-test event to select confirming button 6-test event to select return push-button 7-test event to select to turn over button 8-test event and turns over the qualified pilot lamp 18-of the button 9-power light 10-power switch 11-integral type connector 12-integral type connector locking switch 13-test wire harness 14-air-conditioning rotational speed regulation knob 15-speed of a motor vehicle defective pilot lamp 17-of adjusting knob 16-LCDs 19-switching signal feedback pilot lamp 20-switching signal test pilot lamp 21-switching signal testing button 22-accelerator pedal adjusting knob 23-brake pedal adjusting knob 24-vacuum pump adjusting knob 25-water pump adjusting knob under selecting.
In addition, the connector that connects entire car controller to be measured adopts the connector of supporting integrated strip auto-lock function with it.Can prevent the pin distortion that plug causes, thereby test process middle probe is surprisingly touched the adverse consequencess such as test contact that some conductive materials such as other pins or water enter test causing is inaccurate.
As shown in Figure 3, also provide a kind of method of utilizing controller of new energy automobile multi-signal functional tester, the method comprises the following steps:
(1) user selects test event by button;
(2) judging whether to enter test, is to perform step (3), otherwise red result pilot lamp lights and hummer sounds and performs step (9);
(3) tester sends request Frame to to-be-measured cell;
(4) judge whether to-be-measured cell receives the request data frame that tester is sent, and is to perform step (5), otherwise to-be-measured cell damages, red result pilot lamp lights and hummer sounds and performs step (9);
(5) to-be-measured cell sends responsive data frame to tester;
(6) tester receives responsive data frame, switches corresponding test module;
(7) by corresponding test zone result indicator result of determination, tested and retreated to master menu;
(8) judging whether to-be-measured cell finishes test, is to perform step (9), otherwise execution step (1);
(9) finish.
Because this controller of new energy automobile multi-signal functional tester is by producing switching value signal, analog signals, pulse signal is as the input signal of entire car controller to be measured, can carry out CAN communication with entire car controller to be measured, and can detect the switching value signal that entire car controller feeds back, analog signals and pulse signal, can cancel host computer, display, the equipment such as signal generating circuit, so reduction equipment cost, take up room little, reduce test macro and build the cycle, the Capability Requirement of reduction to test man, the factory that the enters when requirement that makes test not only meet research and development Qualify Phase is also applicable to batch production is detected.
Beneficial effect of the present invention is as follows:
1) miniaturization of equipment, modularization, low cost, portable high, can realize the test to controller overwhelming majority signal transmitting and receiving function, communication function;
2) all control and observable region all concentrate under same panel, operate succinct hommization, and have test result automatic decision and prompting.Tester is without grasping programming, the more complicated knowledge of modeling;
3) connect simple and reliablely, improve reliability and the security of test.
The above; it is only preferred embodiment of the present invention; not the present invention is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong to the protection domain of technical solution of the present invention.
Claims (4)
1. a controller of new energy automobile multi-signal functional tester, is characterized in that: it comprises single-chip microcomputer, power module, memory module, optical coupling isolation circuit, RC filtering circuit, PWM acquisition module, CAN bus transceiver module, quartz oscillator, drive amplification circuit, D/A converter module, PWM output module, SPI interface driver module, lattice lcd screen, single-chip microcomputer respectively with power module, memory module, optical coupling isolation circuit, RC filtering circuit, PWM acquisition module, CAN bus transceiver module, quartz oscillator, drive amplification circuit, D/A converter module, PWM output module, SPI interface driver module, lattice lcd screen connects, CAN bus transceiver module is connected with the CAN bus run of controller of new energy automobile, power module is connected with outside power supply, SPI interface driver module is connected with lattice lcd screen, switching value input signal is inputted single-chip microcomputer and is provided switching value to export by drive amplification circuit by optical coupling isolation circuit, analog input signal is by RC filtering circuit input single-chip microcomputer and provide analog output by D/A converter module, and PWM input signal is by PWM acquisition module input single-chip microcomputer and provide PWM to export by PWM output module.
2. controller of new energy automobile multi-signal functional tester according to claim 1, is characterized in that: memory module is FLASH memory module.
3. controller of new energy automobile multi-signal functional tester according to claim 2, is characterized in that: this tester also comprises panel, and lattice lcd screen is all arranged on panel, is also provided with button, power switch, pilot lamp, knob on panel.
4. a method of utilizing controller of new energy automobile multi-signal functional tester according to claim 1, is characterized in that: the method comprises the following steps:
(1) user selects test event by button;
(2) judging whether to enter test, is to perform step (3), otherwise red result pilot lamp lights and hummer sounds and performs step (9);
(3) tester sends request Frame to to-be-measured cell;
(4) judge whether to-be-measured cell receives the request data frame that tester is sent, and is to perform step (5), otherwise to-be-measured cell damages, red result pilot lamp lights and hummer sounds and performs step (9);
(5) to-be-measured cell sends responsive data frame to tester;
(6) tester receives responsive data frame, switches corresponding test module;
(7) by corresponding test zone result indicator result of determination, tested and retreated to master menu;
(8) judging whether to-be-measured cell finishes test, is to perform step (9), otherwise execution step (1);
(9) finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310573340.9A CN103558848A (en) | 2013-11-13 | 2013-11-13 | Tester for testing various signal functions of vehicle control unit of new energy automobile and method using same |
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| CN201310573340.9A CN103558848A (en) | 2013-11-13 | 2013-11-13 | Tester for testing various signal functions of vehicle control unit of new energy automobile and method using same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490909A (en) * | 2018-02-28 | 2018-09-04 | 北京航天发射技术研究所 | A kind of online automatic detection method of special purpose vehicle vehicle control system hardware access |
| CN111025036A (en) * | 2018-10-10 | 2020-04-17 | 上海汽车集团股份有限公司 | Vehicle load testing device |
| CN111045414A (en) * | 2019-11-28 | 2020-04-21 | 北汽福田汽车股份有限公司 | Control circuit and control device |
| CN111966005A (en) * | 2020-07-01 | 2020-11-20 | 武汉科技大学 | Multi-platform driving debugging device |
| CN113848860A (en) * | 2021-09-30 | 2021-12-28 | 无锡宽慧科技有限公司 | Automatic test system for overhead vehicle controller |
| US11811542B1 (en) | 2022-06-01 | 2023-11-07 | NDSL, Inc. | Galvanic isolation circuitry and associated low power wakeup methods |
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| EP1524803B1 (en) * | 2003-10-16 | 2008-02-13 | Robert Bosch Gmbh | Method and apparatus to change a first mode of a controller to a second mode through a data-bus |
| US20050141752A1 (en) * | 2003-12-31 | 2005-06-30 | France Telecom, S.A. | Dynamically modifiable keyboard-style interface |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490909A (en) * | 2018-02-28 | 2018-09-04 | 北京航天发射技术研究所 | A kind of online automatic detection method of special purpose vehicle vehicle control system hardware access |
| CN111025036A (en) * | 2018-10-10 | 2020-04-17 | 上海汽车集团股份有限公司 | Vehicle load testing device |
| CN111045414A (en) * | 2019-11-28 | 2020-04-21 | 北汽福田汽车股份有限公司 | Control circuit and control device |
| CN111966005A (en) * | 2020-07-01 | 2020-11-20 | 武汉科技大学 | Multi-platform driving debugging device |
| CN111966005B (en) * | 2020-07-01 | 2022-12-20 | 武汉科技大学 | Multi-platform driving debugging device |
| CN113848860A (en) * | 2021-09-30 | 2021-12-28 | 无锡宽慧科技有限公司 | Automatic test system for overhead vehicle controller |
| US11811542B1 (en) | 2022-06-01 | 2023-11-07 | NDSL, Inc. | Galvanic isolation circuitry and associated low power wakeup methods |
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Application publication date: 20140205 |