CN106774263A - A kind of EPS controller tests system and device - Google Patents
A kind of EPS controller tests system and device Download PDFInfo
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- CN106774263A CN106774263A CN201611233007.3A CN201611233007A CN106774263A CN 106774263 A CN106774263 A CN 106774263A CN 201611233007 A CN201611233007 A CN 201611233007A CN 106774263 A CN106774263 A CN 106774263A
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- test
- eps
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- signal generator
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The invention discloses a kind of EPS controller tests system and device, including computer, signal generator circuit plate module, fictitious load and communication module, described computer is connected by signal generator circuit plate module with fictitious load, described computer is also connected with communication module, is connected with the EPS controllers of outside by described fictitious load and communication module.Through the above way, EPS controller tests system and device of the invention, the main test that the fabrication stage is carried out to EPS controllers, calibration with current signal, functional test, the test of power-assisted curve and durable test, have the advantages that simple structure, low cost, highly versatile, testing efficiency and measuring accuracy are high, position of failure point can be accurately navigated to simultaneously, is easy to later period maintenance.
Description
Technical field
The present invention relates to automobile EPS controller tests field, more particularly to a kind of EPS controller tests system and device.
Background technology
Electric booster steering controller test fixture has built hardware circuit by fictitious load, test fixture module
Test platform, using advantage of the TestStand program development software (PDS)s on test and management, is realized under LabVIEW2012 environment
Functional test is carried out to EPS controllers.
Primary structure：Test system is made up of the part of software and hardware 2, software using LabVIEW programming languages and
TestStand program management softwares are combined, and design effective program and perform and management platform.Hardware system is by control machine
Case, I/O boards, product clamper, fictitious load etc. are constituted；
Principle：Tested controller number of pin is more, distance is near, devises product clamper module；It is external during for controller test
The characteristics of load is continually changing, devises fictitious load；The collection of signal realizes that selection here carries 8 by data acquisition module
Used as board carrier, PXI- 1042 includes that built-in 10MHz reference clocks, PXI triggerings are total to the PXI-1042 cabinets of individual draw-in groove
Line, star-like triggering and local bus；Can be compatible with all PXI/PCI series boards
The V of voltage output range 0-24 of controller pin, using 6 Semi-digital universal meter PXI-4070, the board is ensureing
While the degree of accuracy and stability, the right ± 300V control sources of energy, the signal of 1.8 MS of sampling rate/s carry out data acquisition,
The test request of controller voltage, electric current can be met.
The voltage range for exporting PWM waveform is 0-15V, waveform duty cycle precision 1%, it is contemplated that the precision of test, be have chosen
High speed acquisition board PXI-5114.The board has the input range of 40mV- 40V, up to per the Large Copacity plate of passage 256MB
Internal memory is carried, waveform can be shown.A built-in measurement can be compiled directly with analytic function in drive software up to more than 50
Cheng Shengcheng, high precision measurement is realized to waveform parameter.
PXI-8464 be the optional CAN communication board of single port transceiver be applied at a high speed, low speed, single line CAN equipment it is logical
Letter.NI CAN modules realize Premium Features using SJA1000CAN controllers, including single monitoring, internal loopback, senior
Filter patterns and the new transceiver used for sleeping/waking pattern.Controlling machine box can be to CAN moulds by PXI Trigger Bus
Block is synchronized, and improves the efficiency and stability of products C AN communication tests.
Finally, subfunction test program is called by software platform, and test data is analyzed and processed；
The shortcoming that prior art is present is mainly complex structure, and high cost, volume is big, and testing efficiency is low, functional test Xiang Buquan,
Poor universality；
The reason for there is shortcoming：
1st, the hardware components of existing test system are by PXI-1042 cabinets, and keyboard, display extension mouth, PCB pinboards, simulation are negative
Carry, the discrete composition in five parts such as product clamper causes complex structure, and volume is big；
2nd, there are the EPS controllers of Multiple Type in the market, testing every kind of controller will change corresponding fixture, cost
Height, poor universality；
3rd, existing test system is mainly and EPS controllers are carried out single-board testing including test EPS controllers in different operating
Whether the electric signal of pin, test CAN communication function, test EPS controller signals resetting times, transit time reach under state
In prescribed limit etc., also some durable tests and protection test do not refer to that test item is not complete.
The content of the invention
The present invention solves the technical problem of a kind of EPS controller tests system and device is provided, mainly to EPS controls
Device carries out the test of fabrication stage, calibration with current signal, functional test, the test of power-assisted curve and durable test, with simple structure, into
The advantages of this low, highly versatile, testing efficiency and measuring accuracy high, while position of failure point can be navigated to accurately, it is easy to
Later period maintenance.
In order to solve the above technical problems, one aspect of the present invention is：There is provided a kind of EPS controller tests
System and device, including computer, signal generator circuit plate module, fictitious load and communication module, described computer lead to
Cross signal generator circuit plate module to be connected with fictitious load, described computer is also connected with communication module, by institute
The fictitious load and communication module stated are connected with the EPS controllers of outside.
In a preferred embodiment of the present invention, described signal generator circuit plate module includes power supply, signal acquisition
Device, communication device and signal generator, described communication device are communicated using LINBUS.
In a preferred embodiment of the present invention, described fictitious load includes cabinet, the 0.1R being arranged in cabinet
The gold resistance of 500W, LEM current sensors, FL-2 current diverters, 85C1-A pointers ammeter and it is arranged on outside cabinet
The outside connector and heat abstractor in portion.
In a preferred embodiment of the present invention, described signal generator circuit plate module and fictitious load are integrated in
In one cabinet.
In a preferred embodiment of the present invention, described communication module is communicated using CAN communication K_BUS.
In a preferred embodiment of the present invention, described computer, signal generator circuit plate module, fictitious load and
It is connected with EPS controllers by wire harness between communication module.
In a preferred embodiment of the present invention, described EPS controller tests system and device also includes test software mould
Block, described test software module includes test program and test supervisor program.
The beneficial effects of the invention are as follows：EPS controller tests system and device of the invention, is mainly carried out to EPS controllers
The test of fabrication stage, calibration with current signal, functional test, power-assisted curve test and durable test, with simple structure, low cost,
The advantages of highly versatile, testing efficiency and measuring accuracy high, while position of failure point can be navigated to accurately, it is easy to the later stage to tie up
Repair.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing, wherein：
Fig. 1：It is the structural topology figure of EPS controller tests apparatus system of the present invention；
Fig. 2：It is the signal generator circuit plate figure of EPS controller tests apparatus system of the present invention；
Fig. 3：It is the direct fault location circuit block topological diagram of EPS controller tests apparatus system of the present invention；
Fig. 4：It is the signal type switching circuit block figure of EPS controller tests apparatus system of the present invention；
Fig. 5：It is the signal lead-out mode schematic diagram of EPS controller tests apparatus system of the present invention；
Fig. 6：It is the fictitious load scheme of installation of EPS controller tests apparatus system of the present invention.
Specific embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
All other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
As shown in figure 1, the embodiment of the present invention includes：
A kind of EPS controller tests system and device, including computer, signal generator circuit plate module, fictitious load and logical
News module, described computer is connected by signal generator circuit plate module with fictitious load, described computer also with
Communication module is connected, and is connected with the EPS controllers of outside by described fictitious load and communication module.Wherein, it is described
Computer, signal generator circuit plate module, be connected with EPS controllers by wire harness between fictitious load and communication module
Connect.
As shown in figure 3, described signal generator circuit plate module includes power supply, signal picker, communication device and letter
Number generator, described communication device is communicated using LINBUS.As shown in fig. 6, described fictitious load includes cabinet, is arranged on
The gold resistance of the 0.1R 500W in cabinet, LEM current sensors, FL-2 current diverters, 85C1-A pointers ammeter and
It is arranged on outside connector and heat abstractor outside cabinet.
Wherein, described signal generator circuit plate module and fictitious load are integrated in a cabinet, make operation and
Simple processing.
Further, described communication module is communicated using CAN communication K_BUS.
In the present embodiment, described EPS controller tests system and device also includes test software module, and described test is soft
Part module includes test program and test supervisor program, and test program control signal generator circuit board module carries out data output
And data acquisition；Test supervisor program mainly completes the realization of the data display and human-computer interaction interface of test system.
The main test that the fabrication stage is carried out to EPS controllers of the invention, the functional characteristic design test side according to product
Method to its each test item detect mainly includes single-board testing, calibration with current signal, and functional test, power-assisted curve are tested and durable
Test, and test result is compared with qualified index, finally judge whether product meets requirement of dispatching from the factory, if faulty item
Positioning accurately can be carried out to trouble point and facilitate later period maintenance, and test result is sent to host computer by CAN.
EPS controller tests system and device is made up of hardware and software two parts.
Hardware components include：Computer, signal generator circuit plate module, fictitious load module and interface wire harness and logical
News module；Computer is data processing and the transmission maincenter of test system, while being also the operation platform of test software；Signal is sent out
Raw device circuit board module is the input/output function of the required process signal for simulating EPS controllers；CAN communication and LINBUS are communicated
Module realizes the communication test and data transfer between computer and EPS controllers；Fictitious load main analog EPS controllers
Load environment.
Software section includes：Test program and test supervisor program, test program control signal generator circuit board module
Carry out data output and data acquisition；Test supervisor program mainly completes the data display and human-computer interaction interface of test system
Realize.
EPS controller tests apparatus system mainly carries out single-board testing to EPS controllers, and calibration with current signal, functional test is helped
Force curve is tested and durable test；Wherein, single-board testing is mainly tested input and output signal：Including GES,
Engine rotational speed signal, ignition signal, torque signal, angular signal, failure modulating signal, failure enable/idle signal, electric current inspection
Survey and PWM detections；Functional test includes calibration with current signal, protection test；Signal is finally sent to EPS controls by IED interfaces；
The general frame is as shown in Figure 2.
Single-board testing is carried out to EPS controllers signal generator circuit plate module is mainly sent instructions to by host computer,
Simulate the vehicle body signal processed needed for EPS controllers by signal generator circuit plate module carries out controlling EPS to EPS controllers
Device processed is tested to be compared the result of test with setting value, and the result of test is sent to host computer by CAN communication,
Processed if trouble point can accurately navigate to position of failure point by host computer, be easy to later period maintenance.
Circuit in signal generator circuit plate module is as shown in Figure 3：
（1）Communicating circuit is mainly CAN and K_BUS communications；
（2）Signal acquisition circuit is gathered including voltage and current；
（3）Torque signal process circuit includes the switching circuit that circuit and moment of torsion form occur of torque signal；
（4）GES process circuit；
（5）Rotation speed signal processing circuit of engine；
（6）Sound light alarming circuit and idle signal process circuit also some reserved circuits are tested to increase later when breaking down
As long as project prepares change, software phase lock loop is improved；
（7）EPS controllers protect test circuit, mainly simulated failure to be input to EPS controllers and see whether it can be automatically into
Protected mode.
Moment of torsion form switching circuit is mainly current mode torque signal, analogue type moment of torsion in signal generator circuit plate module
Switching between signal and PWM type torque signals, it passes through software detection moment of torsion type and then switches over reality by relay
Existing mode is as shown in Figure 4.Protection test circuit is mainly simulated failure test is carried out to EPS controllers sees whether it can examine automatically
Survey enters into protected mode, and these three failures switch over to realize as shown in Figure 4 by relay.
Calibration with current signal is carried out to EPS controllers, functional test and protection are tested：
（1）The process of calibration with current signal is that host computer sends instructions to signal generator circuit, and signal generator circuit output is corresponding
Dutycycle to EPS controllers, EPS controllers are by judging the size output current of dutycycle come driving load, synchronous signal
There is the electric current and voltage in circuit collection load, setting value is compared by specific function program and is judged with the relation of detected value
Whether this test system output current can reach requirement, ready to carry out functional test；
（2）The process of functional test is that host computer sends instructions to signal generator circuit, and signal generator circuit output is corresponding
Torque signal to EPS controllers, EPS controllers export corresponding electric current come driving load by judging torque signal, while
Electric current and voltage in signal generating circuit collection load, the relation of setting value and detected value is compared by specific function program
Judge the quality of EPS controllers；
（3）The process for protecting test is that host computer sends instructions to signal generator circuit, and signal generator circuit is simulated
Failure is input to EPS controllers and carries out test sees whether it can detect these failures automatically into protected mode.To speed
Its main way of realization of signal, engine rotational speed signal, torque signal, angular signal, failure modulating signal is these signals and electricity
Source, ground short circuit and open circuit Three models, CAN are shorted with each other fault mode.
Relation of the power-assisted curve test mainly between test speed and torque：
Signal generator circuit is sent instructions to by host computer, signal generator circuit exports different GESs to EPS
Controller, EPS controllers export different torques come driving load by judging different GESs, and synchronous signal occurs electricity
Electric current and voltage in the collection load of road, compare setting value and judge product with the relation of detected value by specific function program
It is good and bad.
Such as power-assisted curve test process
Necessary exact p-value frock power supply opening before power-assisted curve experiments, module is connected normally with frock, and modular power source connects
Connect, also ValueCan is connected with frock.”
The first step：The configuration data in experimental configuration data interface.Need to fill in speed ratio, in addition it is also necessary to fill in the car for needing test
Speed, and curve symmetry and maximum current scope.Filling in parameter has two methods, and one is to fill in manually, and two is to lead automatically
Enter data.Fill in need after the completion of data to perform following " second step " manually and operate.The method of automated import of data is to click " to lead
Enter data " button, open file dialogs are then ejected, it is necessary to respective items purpose data excel files, we load here
It is " xxxxx " file；
Second step：" power-assisted curve experiments " interface is switched to, it is necessary to carry out " power-assisted curve " experiment, " starting test " is clicked and is pressed
Button, software can be tested automatically.If necessary to stop testing, then " stopping test " button is clicked；
3rd step：The data tested can be automatically saved in software with the file of " xxxxx " under catalogue.
EPS controller tests system and device technical problem to be solved of the invention：
（1）For baroque problem in the prior art, be embedded in cabinet for MCU control panels, fictitious load by this test system
Simplify structure；
（2）For the problem of prior art high cost, signal is extracted and directly controlled with EPS by this test system by aviation plug
Device signaling interface processed connection, as long as being dropped by the wire harness all right product clamper that eliminates of transferring for the EPS controllers of distinct interface
Low cost；
（3）For prior art testing efficiency and the aspect of versatility, this test system is in signal generator circuit plate module
Increased the compatible various EPS controllers of unlike signal type switching circuit；
（4）For prior art measuring accuracy aspect, this test system will be first sent the commands to this test system by host computer
System carries out calibration with current signal, can also carry out functional test after calibration with current signal is qualified to EPS controllers, and calibration with current signal is used
The LEM sensors that two-way measuring accuracy reaches 1% are sampled, and are increased in terms of measuring accuracy；
（5）By this test system not only can to the electric signal of pin under different working condition, test CAN communication functions,
Test EPS controller signals resetting times, transit time whether reach carried out in prescribed limit test can also be to EPS controls
Device does durable test, and the test of power-assisted curve and protection test solve the problems, such as that prior art test item is not complete.
EPS controller tests system and device of the invention advantage compared with prior art：
1. versatility：The compatible various EPS controls of unlike signal type switching circuit are increased in signal generator circuit plate module
Device processed；For example：The signal of torque sensor output has three types, current mode torque signal, analogue type torque signal, PWM types
Torque signal, devises the circuit to that can automatically switch between three kinds of torque signals；
2. the raising of testing efficiency：In a test system except single-board testing, be also add outside calibration with current signal and functional test and helped
Force curve is tested and durable test, can test multinomial on a platform, and the prior art that compares improves testing efficiency；
3. measuring accuracy is improved：This test system carries out test to EPS controllers must be carried out in sequence, first EPS be controlled
Device processed carries out after single-board testing passes through, then sending the commands to carry out calibration with current signal, electric current to this test system by host computer
Demarcate it is qualified after can just carry out functional test to EPS controllers, functional test can just carry out power-assisted curve and resistance to after passing through
Test long, and two-way measuring accuracy is employed to calibration with current signal reach 1% LEM sensors and sample, in measuring accuracy side
Face increases；
4. the saving of raw material and operation：Measured signal is all guided in signal generator circuit plate module IED interfaces, use line
Beam is connected on EPS controllers and instead of fixture, reduces cost；
5. signal generator circuit plate module, fictitious load are all integrated in a cabinet makes operation and simple processing；
6., as long as being clicked on after pair EPS controllers are tested and EPS controllers are connected with test device wiring and being connected equipment, it is
System is automatic to carry out testing and control simplicity to EPS controllers.
In sum, EPS controller tests system and device of the invention, mainly carries out the fabrication stage to EPS controllers
Test, calibration with current signal, functional test, the test of power-assisted curve and durable test, with simple structure, low cost, highly versatile, survey
The advantages of examination efficiency and measuring accuracy high, while position of failure point can be navigated to accurately, it is easy to later period maintenance.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (7)
1. a kind of EPS controller tests system and device, it is characterised in that including computer, signal generator circuit plate module, mould
Intend load and communication module, described computer is connected by signal generator circuit plate module with fictitious load, described
Computer be also connected with communication module, by described fictitious load and communication module with outside EPS controllers be connected
Connect.
2. EPS controller tests system and device according to claim 1, it is characterised in that described signal generator electricity
Road plate module includes power supply, signal picker, communication device and signal generator, and described communication device is logical using LINBUS
News.
3. EPS controller tests system and device according to claim 2, it is characterised in that described fictitious load includes
Cabinet, the gold resistance of the 0.1R 500W being arranged in cabinet, LEM current sensors, FL-2 current diverters, 85C1-A refer to
Pin ammeter and the outside connector and the heat abstractor that are arranged on outside cabinet.
4. EPS controller tests system and device according to claim 3, it is characterised in that described signal generator electricity
Road plate module and fictitious load are integrated in a cabinet.
5. EPS controller tests system and device according to claim 1, it is characterised in that described communication module is used
CAN communication K_BUS is communicated.
6. EPS controller tests system and device according to claim 1, it is characterised in that described computer, signal hair
Give birth to device circuit board module, be connected with EPS controllers by wire harness between fictitious load and communication module.
7. EPS controller tests system and device according to claim 1, it is characterised in that described EPS controller tests
System and device also includes test software module, and described test software module includes test program and test supervisor program.
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| CN108445871A (en) * | 2018-04-20 | 2018-08-24 | 株洲易力达机电有限公司 | A kind of system and method for automatic detection EPS controller circuitry units |
| CN108918167A (en) * | 2018-06-28 | 2018-11-30 | 郑州轻工业学院 | The test macro of automobile electric power-assisted steering controller aging |
| CN111258294A (en) * | 2020-01-07 | 2020-06-09 | 北京经纬恒润科技有限公司 | Fault tolerance time testing system and method |
| CN113447877A (en) * | 2021-06-16 | 2021-09-28 | 合肥国轩高科动力能源有限公司 | System and method for calibrating upper computer of current measuring shunt |
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| CN107943004B (en) * | 2017-12-06 | 2019-12-06 | 北京交通大学 | test system of tractor power gear shifting controller |
| CN108445871A (en) * | 2018-04-20 | 2018-08-24 | 株洲易力达机电有限公司 | A kind of system and method for automatic detection EPS controller circuitry units |
| CN108918167A (en) * | 2018-06-28 | 2018-11-30 | 郑州轻工业学院 | The test macro of automobile electric power-assisted steering controller aging |
| CN111258294A (en) * | 2020-01-07 | 2020-06-09 | 北京经纬恒润科技有限公司 | Fault tolerance time testing system and method |
| CN111258294B (en) * | 2020-01-07 | 2021-06-29 | 北京经纬恒润科技股份有限公司 | Fault tolerance time testing system and method |
| CN113447877A (en) * | 2021-06-16 | 2021-09-28 | 合肥国轩高科动力能源有限公司 | System and method for calibrating upper computer of current measuring shunt |
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Application publication date: 20170531 |