CN202362659U - Environment attestation load box for electronic control unit of mechanical automatic transmission - Google Patents
Environment attestation load box for electronic control unit of mechanical automatic transmission Download PDFInfo
- Publication number
- CN202362659U CN202362659U CN2011204811873U CN201120481187U CN202362659U CN 202362659 U CN202362659 U CN 202362659U CN 2011204811873 U CN2011204811873 U CN 2011204811873U CN 201120481187 U CN201120481187 U CN 201120481187U CN 202362659 U CN202362659 U CN 202362659U
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- load
- load box
- power supply
- box
- environment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The utility model relates to an environment attestation load box for an electronic control unit of a mechanical automatic transmission. The environment attestation load box is characterized in that the total load box comprises an upper-layer module and bottom-layer modules, the upper-layer module consists of a PXI (peripheral component interconnect) processor of NI (national instruments) and an industrial controller, and each bottom-layer module consists of an analog load and an output generating and load monitoring unit. An air switch and an emergency brake switch are disposed on the top of the load box, a programmable power supply and an uninterrupted power supply (UPS) which are connected with the industrial controller by wire harnesses are mounted at the bottom of the load box, and the load box is provided with an industrial touch display and an RS232 communication interface communicated with a temperature box. By the aid of the environment attestation load box, a controllable variable power supply, the controllable variable environmental temperature and a stable testing environment for a standby power supply are provided for a tested electric control unit on the basis of safe and stable running, and accurate and real-time data recording and visible operation environment is provided for testing personnel.
Description
Technical field
The utility model relates to a kind of automatic mechanical transmission electronic control unit environment authentication load box; It can and be produced at the design verification of electronic control unit provides electronic control unit required input output fictitious load in the verification process; And monitoring electronic control unit ruuning situation, the automatically generated data log file.
Background technology
In automatic mechanical transmission electronic control unit (hereinafter to be referred as ECU) the environment verification process, environment authentication load box is must obligato equipment.Environment authentication load box can be simulated actuator, the sensor on the automatic mechanical transmission, export various control signals by ECU and drive above-mentioned actuator work, and the value of pick-up transducers is transferred to load box.Load box feeds back to host computer with the duty of actuator and the sensor values of receiving, whether pass judgment on ECU by host computer in proper working order.Because auto parts and components are according to its environment for use, need carry out the long environmental testing of many harshnesses, so in the environmental testing verification process, estimate ECU whether the environment authentication load box of operate as normal corresponding performance requirement has also been proposed.
Summary of the invention
The purpose of the utility model is to provide a kind of automatic mechanical transmission electronic control unit environment authentication load box, and it can satisfy stable operation in the whole electronic control unit environment verification process; Can with environment authentication sweat box, humidity cabinet, shaking table collaborative work, ECU can be exposed under each environment of load box predetermined set carry out authentication; Can ECU be moved under specific some patterns according to the real vehicle operating mode, and can make up and dispose these patterns; Can the correct data do time recording, misdata is done real time record, for optimizing ECU related hardware circuit parameter " transparent " environment is provided simultaneously, make the hardware development personnel to reach authentication purpose according to the quick fault location of experimental record; Can carry out hardware plan change fast according to demand.
The utility model solves the technical scheme that its technical matters adopted: automatic mechanical transmission electronic control unit environment authentication load box; By NI Industrial Control Computer, NI PXI controller, NI CAN integrated circuit board, touch display, fictitious load module, input produces and load monitoring module, uninterrupted power source UPS, programmable power supply, brake hard switch and form with the data acquisition module of sweat box communication; It is characterized in that: whole load box top is provided with air switch and brake hard switch; Brake hard switch in parallel uninterrupted power source UPS, programmable power supply; Programmable power supply is connected through wire harness with Industrial Control Computer, and to tested ECU variable power supply is provided through power lead; Touch display, keyboard, mouse connect the NI Industrial Control Computer, the RS232 communication interface of configuration and incubator communication on the load box; Fictitious load, output produce and the bottom module is formed in the load monitoring unit; Each bottom module all is connected through wire harness with a tested ECU; ECU is gathered switching value, analog quantity and tach signal value and is returned to the bottom module through the CAN network; Drive fictitious load simultaneously; Each bottom module is uploaded to the upper layer module of being made up of PXI processor and the Industrial Control Computer of NI with the monitor message of the switch of receiving, simulation, tach signal value and fictitious load through NI CAN integrated circuit board, and several bottom modules and unique upper layer module have constituted the structure of whole load box like this.
The beneficial effect of the utility model is; Can carry out in the harsh environment verification process of each item at tested ECU; Stable operation can cooperate sweat box, shaking table and program-controlled unit to provide a complication experiment environment to simulate the required carrying capacity of environment of bearing of tested ECU; Duty in can the tested ECU whole test process of complete documentation, convenient design and tester's fault location have increased the robotization and the intelligent level of environmental testing authentication, improve environment authentication efficient greatly, have shortened the Products Development cycle.
Description of drawings
Fig. 1 is that the system of automatic mechanical transmission electronic control unit environment authentication load box connects block diagram.
Fig. 2 is the network structure of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further: as shown in Figure 1; Brake hard switch 2 connects the AC power bus of whole load box; It is NI Industrial Control Computer, touch display, load, uninterrupted power source UPS and programmable power supply when AC power is provided, and guarantees when system breaks down, to break off the power supply source.Be connected through the CAN bus between NI Industrial Control Computer, integrated circuit board and the load; The former is handed down to each load with operational mode; The needed switching value of mechanical type electronic control unit of automatic gearbox, analog quantity, tach signal generation circuit and actuator fictitious load are arranged in the load; They are connected through wire harness with tested ECU, and ECU is gathered input quantity and uploaded through the CAN bus, drives fictitious load; The analog quantity that ECU is uploaded in load and the duty of fictitious load are uploaded to NI Industrial Control Computer, integrated circuit board, and the latter passes judgment on each tested control module state that also writes down, and form log file; When the bus power interruption was supplied power, uninterrupted power source UPS was that load, NI Industrial Control Computer, integrated circuit board provide standby power supply, guarantees the safe storage of data, initiatively closes load box where necessary, reaches the purpose that safety is cut off the power supply; Be connected through the RS232 interface between programmable power supply and NI Industrial Control Computer, the integrated circuit board, can flow to the supply voltage of tested ECU according to the adjustment in real time of environment authentication demand; NI Industrial Control Computer, integrated circuit board can be communicated by letter with outside environment temperature case through the RS232 interface in addition, make environment temperature also become the controlled item of test verification process.
In Fig. 2, each tested ECU all is connected through wire harness with a load, comprising the drive signal and the CAN connection of sensor signal, analog signals, rotating speed amount signal, power termination; And two groups of CAN networks are arranged in load, and wherein the one tunnel tested ECU corresponding with it formed bottom CAN network, and another road and other loads and IN Industrial Control Computer, integrated circuit board are formed upper strata CAN network; Above two-way CAN network has been formed the network structure of whole load box.
Claims (1)
1. automatic mechanical transmission electronic control unit environment authentication load box; By NI Industrial Control Computer, NI PXI controller, NI CAN integrated circuit board, touch display, fictitious load module, input produces and load monitoring module, uninterrupted power source UPS, programmable power supply, brake hard switch and form with the data acquisition module of sweat box communication; It is characterized in that: whole load box top is provided with air switch and brake hard switch; Brake hard switch in parallel uninterrupted power source UPS, programmable power supply; Programmable power supply is connected through wire harness with Industrial Control Computer, and to tested ECU variable power supply is provided through power lead; Touch display, keyboard, mouse connect the NI Industrial Control Computer, the RS232 communication interface of configuration and incubator communication on the load box; Fictitious load, output produce and the bottom module is formed in the load monitoring unit; Each bottom module all is connected through wire harness with a tested ECU; ECU is gathered switching value, analog quantity and tach signal value and is returned to the bottom module through the CAN network; Drive fictitious load simultaneously; Each bottom module is uploaded to the upper layer module of being made up of PXI processor and the Industrial Control Computer of NI with the monitor message of the switch of receiving, simulation, tach signal value and fictitious load through NI CAN integrated circuit board, and several bottom modules and unique upper layer module have constituted the structure of whole load box like this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204811873U CN202362659U (en) | 2011-11-28 | 2011-11-28 | Environment attestation load box for electronic control unit of mechanical automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204811873U CN202362659U (en) | 2011-11-28 | 2011-11-28 | Environment attestation load box for electronic control unit of mechanical automatic transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202362659U true CN202362659U (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204811873U Expired - Lifetime CN202362659U (en) | 2011-11-28 | 2011-11-28 | Environment attestation load box for electronic control unit of mechanical automatic transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202362659U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104035848A (en) * | 2014-06-14 | 2014-09-10 | 上海威固信息技术有限公司 | Automatic VPX testing system |
-
2011
- 2011-11-28 CN CN2011204811873U patent/CN202362659U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104035848A (en) * | 2014-06-14 | 2014-09-10 | 上海威固信息技术有限公司 | Automatic VPX testing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |