CN108445871A - A kind of system and method for automatic detection EPS controller circuitry units - Google Patents
A kind of system and method for automatic detection EPS controller circuitry units Download PDFInfo
- Publication number
- CN108445871A CN108445871A CN201810359244.7A CN201810359244A CN108445871A CN 108445871 A CN108445871 A CN 108445871A CN 201810359244 A CN201810359244 A CN 201810359244A CN 108445871 A CN108445871 A CN 108445871A
- Authority
- CN
- China
- Prior art keywords
- eps
- personal computer
- industrial personal
- detection
- controlled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/021—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system adopting a different treatment of each operating region or a different mode of the monitored system, e.g. transient modes; different operating configurations of monitored system
-
- 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
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0267—Fault communication, e.g. human machine interface [HMI]
- G05B23/027—Alarm generation, e.g. communication protocol; Forms of alarm
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Human Computer Interaction (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
The present invention proposes a kind of system of automatic detection EPS controller circuitry units, including industrial personal computer（1）, programme-controlled dc power（2）, program-controlled ignition signal source（3）, program-controlled sampling module（4）, programmable signal generator（5）, program-control electronic load（6）, EPS controllers（7）.A kind of method of automatic detection EPS controller circuitry units passes through industrial personal computer（1）Setting detection program, according to predefined parameter in an orderly manner to EPS controllers（7）Internal each circuit unit is detected, if it find that failure feeds back to inspector by alarm, improves detection efficiency on production line.
Description
Technical field
The present invention relates to automobile power steering technical fields, more particularly, to a kind of automatic detection EPS controller circuitrys
The system and method for unit.
Background technology
Automobile steering system is a critical piece on automobile, and the performance of steering directly influences the manipulation of automobile
Stability drives for ensureing the safety traffic of vehicle, the personal safety for reducing traffic accident and protecting driver, improving
The operating condition of personnel plays an important role.Automobile steering system, which develops to, substantially experienced purely mechanic steering today
（Manual Steering abbreviations MS）, hydraulic power-assist steering system（Hydraulic Power Steering abbreviations HPS）、
Electric hydraulic power-assisted steering system（Electric Hydraulic Power Steering abbreviations EHPS）, motorcar electric power-assisted
Steering（Electric Power Steering abbreviations EPS）.With the maturation and cost of electron controls technology in recent years
Reduction, EPS increasingly has been favored by people, and application of the electron controls technology in automobile assisted power steering system makes automobile
Cornering ability reached satisfactory degree.
The usage quantity of EPS automobile markets at home is more and more, and EPS will be as the main production of automobile steering device
Product.For EPS as a main component on automobile, the quality of its performance is not only related to the quality of motor turning performance,
It is also directly related to the life security of driver and passenger, concerning corporate image, development and existence.It therefore must be to EPS products
Properties and reliability are effectively detected, and the correct property indices for judging EPS are conducive to prevent underproof
EPS products enter market；For research and designer simultaneously for EPS, they are in the ginseng for accurately grasping oneself product
The defect for being conducive to find product after number carries out relevant improvement to EPS.
Current existing EPS controllers detection method, mostly uses semiautomatic fashion, i.e., in detection process, needs to carry out
Manual operation and judgement have that efficiency and accuracy be not high without all automations and intelligence.
Invention content
The prior art is insufficient and defect the technical problem to be solved by the present invention is to being directed to, and provides on a kind of realization production line
The automatic detection of EPS system hardware module function and performance.
To achieve the above object, the present invention uses following technical scheme.
A kind of system of automatic detection EPS controllers, including industrial personal computer, programme-controlled dc power, program-controlled ignition signal source, journey
Sampling module, programmable signal generator, program-control electronic load, EPS controllers are controlled, wherein
Industrial personal computer, the order process for controlling automatic detection EPS controllers, reads and identifies the status data of EPS controllers,
Detection journal file is generated simultaneously and is stored；
Programme-controlled dc power provides operating voltage for receiving industrial personal computer instruction for EPS controllers；
Program-controlled ignition signal source provides ignition signal for receiving industrial personal computer instruction for EPS controllers；
Program-controlled sampling module, the output signal for receiving industrial personal computer instruction sampling EPS controllers；
Programmable signal generator generates signal transmission to EPS controllers for receiving industrial personal computer instruction；
Program-control electronic load for receiving industrial personal computer instruction setting load parameter, and samples the electric current letter of EPS controllers output
Number；
EPS controllers, receive industrial personal computer instruction in an orderly manner complete circuit detection and by detection data be transmitted back to industrial personal computer for point
Analysis judges.
Further, the signal that programmable signal generator generates includes PWM square-wave signals or voltage signal, for detecting
Whether EPS controller internal circuit functions are intact, and amplitude, frequency, the duty ratio of wherein PWM square-wave signals are adjustable, voltage signal
Voltage value it is adjustable.
A kind of method of automatic detection EPS controllers, is as follows：
S1 CAN communication circuits detect：Industrial personal computer controls programme-controlled dc power and provides operating voltage to EPS controllers, controls simultaneously
Program-controlled ignition signal source provides ignition signal to EPS controllers so that after EPS controllers are started to work, industrial personal computer is controlled to EPS
Device sends inquiry frame, if EPS can normal response, CAN communication circuit is normal and enters S2, otherwise circuit abnormality, and alarm is simultaneously
Interrupt detection；
S2 thermosensitive circuits detect：Industrial personal computer sends Current Temperatures to EPS controllers and inquires that frame, EPS acquire temperature sensor
Current temperature value sends back industrial personal computer, industrial personal computer by predefined temperature value in the EPS current temperature values passed back and industrial personal computer into
Row compares, if deviation is in allowed limits, thermosensitive circuit normally enters S3, otherwise circuit abnormality, alarms and interrupts inspection
It surveys；
S3 electric power management circuits detect, and are divided into the detection of work supply voltage circuit, the detection of ignition signal circuit, sensor power supply
Circuit detects：
S31 work supply voltage circuit detections：Industrial personal computer control program-controlled ignition signal source output voltage is fixed value and controls journey
It controls direct current power source voltage to press fixed step size increase in a certain range or decay, while changing every time to EPS and sending inquiry frame, such as
Fruit EPS can normal response, the voltage value of the programme-controlled dc power of start recording at that time, if EPS is no longer replied in change procedure,
The voltage value of record is transmitted back to industrial personal computer, the voltage value that industrial personal computer will be passed back by the voltage value for not re-recording programme-controlled dc power
It is compared with two boundary values of predefined normal power supply voltage range, if deviation in allowed limits, is powered
Potential circuit normally enters S32, otherwise circuit abnormality, alarms and interrupts detection；
S32 ignition signal circuits detect：Industrial personal computer control programme-controlled dc power voltage output voltage is fixed value and controls program-controlled
Ignition signal source presses fixed step size and increases or decay in a certain range, while changing every time to EPS and sending inquiry frame, if
EPS can normal response, the voltage value in the program-controlled ignition signal source of start recording at that time, if EPS is no longer replied in change procedure,
The voltage value of record is transmitted back to industrial personal computer, the voltage that industrial personal computer will be passed back by the voltage value for not re-recording program-controlled ignition signal source
Value is compared with two boundary values of predefined normal power supply voltage range, if deviation is in allowed limits, point
Fiery signal circuit normally enters S33, otherwise circuit abnormality, alarms and interrupts detection；
S33 sensor feed circuits detect：Industrial personal computer is sent the sensing for current class by categories of sensors to EPS in an orderly manner
Device provides the instruction of operating voltage, and EPS executes command adapted thereto output voltage signal, program-controlled sampling module acquisition current sensor
Voltage value is transmitted back to industrial personal computer, while EPS passes work back by the voltage value of internal sample module samples current sensor sensor
The voltage value passed back is compared by control machine, industrial personal computer, if deviation is in allowed limits, the sensor of current class supplies
Circuit is normal, repeats to finish up to sensor all detects into S33 and all normally enter S4, otherwise circuit abnormality, alarm
And interrupt detection；
S4 watchdog circuits detect：Industrial personal computer sends the instruction of watchdog circuit tests to EPS, and EPS is to watchdog circuits
It is tested, normally feeds and the number of EPS warm resets and hard reset is transmitted back to industrial personal computer under dog state, then interrupted and feed dog EPS
Restart, then the number of EPS warm resets and hard reset is transmitted back to industrial personal computer, if warm reset number is constant, hard reset number increases
Add 1, then watchdog circuits normally enter S5, otherwise circuit abnormality, alarm and interrupt detection；
S5 sensor signal input circuits detect：Industrial personal computer predefines frequency, duty ratio, the amplitude of PWM square-wave signals, and controls
Programmable signal generator processed generates corresponding pwm signal and is supplied to EPS controllers, while industrial personal computer presses categories of sensors to EPS
Controller sends the signal input detection instruction of certain current class individual sensor, and EPS acquires PWM by internal sample unit to be believed
Number, obtain corresponding frequency, duty ratio is transmitted back to industrial personal computer, industrial personal computer by the frequency for the pwm signal passed back, duty ratio with it is predetermined
Frequency, the duty ratio of the pwm signal of justice are compared, if deviation is in allowed limits, the sensor of current class is believed
Number input circuit is normal, repeat to enter S5 until sensor all detection finishes and the input of each sensor signal normally enters
S6, otherwise circuit abnormality, alarms and interrupts detection；
S6 eeprom circuits detect：Industrial personal computer sends eeprom circuit detection detection instruction to EPS controllers, and EPS is executed instruction
And reading, write state and data are transmitted back to industrial personal computer, if state and data are errorless, eeprom circuit normally enters S7,
Otherwise circuit abnormality alarms and interrupts detection；
S7 Motor driving circuits detect：Industrial personal computer predefines the different current value in three tunnel sizes, direction and is sent to EPS controls
Device, EPS export three road current signals to program-control electronic load, and program-control electronic load receives current signal and passes industrial personal computer back, together
When industrial personal computer to EPS controllers send Motor driving circuits detection instruction, EPS controllers from sampling three road current values be transmitted back to
Current value twice is compared by industrial personal computer, industrial personal computer, if deviation is in allowed limits, motor-drive circuit and motor
Current sampling circuit normally enters S8, otherwise circuit abnormality, alarms and interrupts detection；
S8 detections terminate, and industrial personal computer sends out prompting sound, and EPS controllers are offline.
It is entirely detected the invention has the advantages that completing EPS controller hardwares circuit using computer testing technology
The intelligence and automation of process, detect hardware capability and performance bounds, for current artificial detection,
Measuring accuracy is high, detection speed is fast, testing result can be called by industrial personal computer and be analyzed, and improves detection efficiency and accuracy；Separately
It, can outside by the way that the automatic detection of different type EPS controllers it is only necessary to change industrial personal computer program and EPS programs, can be completed
With the repeated application detecting system, increases operation rate and detected suitable for production line.
Description of the drawings
A kind of system structure diagrams of automatic detection EPS controllers of Fig. 1；
1- industrial personal computers in figure, 2- programme-controlled dc powers, the program-controlled ignition signal sources 3-, the program-controlled sampling modules of 4-, 5- program control signals hair
Raw device, 6- program-control electronic loads, 7-EPS controllers；
A kind of method flow diagrams of automatic detection EPS controllers of Fig. 2；
The hardware circuit unit of Fig. 3 EPS controllers forms；
31-CAN telecommunication circuits in figure, 32- thermosensitive circuits, 33- electric power management circuits, 34-Watchdog circuits, 35- signals pass
Sensor, 36-EEPROM circuits, 37-Motor driving circuits.
Specific implementation mode
The present invention is further illustrated With reference to embodiment.
The system structure diagrams of automatic detection EPS controllers as shown in Figure 1, including industrial personal computer 1, programme-controlled dc power 2,
Program-controlled ignition signal source 3, program-controlled sampling module 4, programmable signal generator 5, program-control electronic load 6, EPS controllers 7.System work
It is communicated between control machine and EPS controllers and passes through CAN data lines, communicated between remaining each module and pass through RS232/RS485/CAN numbers
According to line.
Industrial personal computer 1 is the host computer of the detecting system, can be undertaken by industrial personal computer computer or PC machine, development environment is
Windows or Codesys, program development language are C# or Qt or Codesys；Industrial personal computer is for controlling automatic detection EPS controls
The order process of device, reads and identifies the status data of EPS controllers, while generating detection journal file and storing.
Programme-controlled dc power 2 is undertaken by high-power programme-controlled dc power, output power at least 1200W, output voltage range
For 0 ~ 24V, operating voltage is provided for EPS controllers for receiving industrial personal computer instruction.
Program-controlled ignition signal source 3 is undertaken by small-power programme-controlled dc power, output power 150W, output voltage range be 0 ~
30V provides ignition signal for receiving industrial personal computer instruction for EPS controllers.
Program-controlled sampling module 4, for receive industrial personal computer instruction sampling EPS controllers in torque/angular transducer with suddenly
That sensor supply voltage, you can sampling two-way voltage signal, voltage sample range：0 ~ 5V, sampling precision 0.1V.
Programmable signal generator 5 generates signal transmission to EPS controllers for receiving industrial personal computer instruction, main in embodiment
It is used for simulation torque, angle, voltage signal, wherein the PWM signal frequency generated, duty ratio, amplitude are adjustable, voltage signal
Voltage is adjustable.
Program-control electronic load 6 receives the load of industrial personal computer instruction simulation brushless motor, receives the pwm signal of EPS outputs, and
Industrial personal computer is transmitted the signal to, is compared for subsequent current signal.
EPS controllers 7 receive industrial personal computer instruction and complete circuit detection in an orderly manner and detection data is transmitted back to industrial personal computer use
Concrete model is ECU04D in analytical judgment, embodiment, and input end signal is defined as follows：All the way 5V level signals, supply all the way
Piezoelectric voltage signal, two-way torque pwm signal, two-way angle pwm signal, all the way CAN communication input, output end have all the way torque/
The pwm signal of angular transducer supply voltage signal, all the way Hall sensor supply voltage signal, No. three brushless motors, all the way
CAN communication exports.Wherein the supply voltage of torque/angular transducer and Hall sensor is 5V, what ECU04D can normally start
Supply voltage is 9 ~ 16V.
The method flow of automatic detection EPS controllers is as shown in Fig. 2, the orderly progress of industrial personal computer control EPS controllers is automatic
The function and performance of its hardware circuit are detected, wherein the hardware circuit unit of EPS controllers is as shown in figure 3, CAN communication circuit 31
Data interaction communication is carried out with external for EPS controllers, thermosensitive circuit 32 is for monitoring EPS controller hardware circuits work temperature
For degree to prevent overheat, electric power management circuit 33 includes receiving ignition signal, supply voltage signal and being supplied for signal transducer output
Piezoelectric voltage, for Watchdog circuits 34 for monitor controller working condition to prevent " run and fly ", signal transducer 35 includes torque/angle
Degree sensor 351 is with Hall sensor 352 for receiving torque, angle, motor voltage signal, and eeprom circuit 36 is for reading and writing
Data, Motor driving circuits 37 receive current signal；That is the hardware circuit in EPS controllers is detected automatically successively；
In addition consider signal by there is attenuation factor after component, think in embodiment if detection data ± 5% error range with
Inside think normal, here is that the detection method is as follows：
S1 CAN communication circuits detect：Industrial personal computer controls programme-controlled dc power and provides 12V operating voltages to EPS controllers, simultaneously
It controls program-controlled ignition signal source and provides ignition signal to EPS controllers so that after EPS controllers are started to work, industrial personal computer is to EPS
Controller sends inquiry frame, if EPS can normal response, CAN communication circuit is normal and enters S2, otherwise circuit abnormality, report
It warns and interrupts detection；
S2 thermosensitive circuits detect：Industrial personal computer sends Current Temperatures to EPS controllers and inquires that frame, EPS are worked as what thermosensitive circuit acquired
Preceding temperature value sends back industrial personal computer, and industrial personal computer carries out predefined temperature value in the EPS current temperature values passed back and industrial personal computer
Compare, if deviation is in allowed limits, thermosensitive circuit normally enters S3, otherwise circuit abnormality, alarms and interrupts detection；
S3 electric power management circuits detect, and are divided into the detection of work supply voltage circuit, the detection of ignition signal circuit, sensor power supply
Circuit detects：
S31 supply voltage circuits detect：
S311 industrial personal computers control program-controlled ignition signal source output voltage be fixed as 12V voltages and control programme-controlled dc power voltage from
0V to 20V increase variation, step-length 0.1V, at the same every time change to EPS send inquiry frame, if EPS can normal response, start
The voltage value of record programme-controlled dc power at that time does not re-record programme-controlled dc power if EPS is no longer replied in change procedure
Voltage value, the voltage value of record is transmitted back to industrial personal computer, industrial personal computer is by the voltage value passed back and predefined normal power supply electricity
Two boundary values of pressure range are compared, if deviation is in allowed limits, supply voltage circuit normally enters S312,
Otherwise circuit abnormality alarms and interrupts detection；
S312 industrial personal computers control program-controlled ignition signal source output voltage be fixed as 12V voltages and control programme-controlled dc power voltage from
20V to 0V attenuation changes, step-length 0.1V, while every time change to EPS send inquiry frame, if EPS can normal response, start
The voltage value of record programme-controlled dc power at that time does not re-record programme-controlled dc power if EPS is no longer replied in change procedure
Voltage value, the voltage value of record is transmitted back to industrial personal computer, industrial personal computer is by the voltage value passed back and predefined normal power supply electricity
Two boundary values of pressure range are compared, if deviation is in allowed limits, supply voltage circuit normally enters S32,
Otherwise circuit abnormality alarms and interrupts detection；
S32 ignition signal circuits detect：
S321 industrial personal computers control programme-controlled dc power voltage output voltage is fixed as 12V voltages and controls program-controlled ignition signal source
From 0V to 20V increase variation, step-length 0.1V, at the same every time change to EPS send inquiry frame, if EPS can normal response, open
Begin the voltage value in record program-controlled ignition signal source at that time, if EPS is no longer replied in change procedure, does not re-record program-controlled igniting
The voltage value of record is transmitted back to industrial personal computer by the voltage value of signal source, industrial personal computer by the voltage value passed back with it is predefined normal
Two boundary values of power supply voltage range are compared, if deviation is in allowed limits, supply voltage circuit normally into
Enter S322, otherwise circuit abnormality, alarm and interrupts detection；
S322 industrial personal computers control programme-controlled dc power voltage output voltage is fixed as 12V voltages and controls program-controlled ignition signal source
The attenuation change from 20V to 0V, step-length 0.1V, while every time change to EPS send inquiry frame, if EPS can normal response, open
Begin the voltage value in record program-controlled ignition signal source at that time, if EPS is no longer replied in change procedure, does not re-record program-controlled igniting
The voltage value of record is transmitted back to industrial personal computer by the voltage value of signal source, industrial personal computer by the voltage value passed back with it is predefined normal
Two boundary values of power supply voltage range are compared, if deviation is in allowed limits, supply voltage circuit normally into
Enter S33, otherwise circuit abnormality, alarm and interrupts detection；
S33 sensor signal input circuits detect：
S331 torques/angular transducer power supply circuit detection：Industrial personal computer sends to EPS and provides 5V electricity for torque/angular transducer
The instruction of pressure, EPS execute command adapted thereto output voltage signal, and program-controlled sampling module acquisition current voltage value is transmitted back to industrial personal computer,
EPS passes industrial personal computer back by the voltage value of internal sample module samples current torque/angular transducer simultaneously, and industrial personal computer will
The voltage value passed back is compared, if deviation is in allowed limits, torque/angular transducer power supply circuit normally enters
S332, otherwise circuit abnormality, alarms and interrupts detection；
S332 hall electric machine sensor feed circuits detect：Industrial personal computer sends to EPS and provides 5V voltages for hall electric machine sensor
Instruction, EPS executes command adapted thereto output voltage signal, and program-controlled sampling module acquisition current voltage value is transmitted back to industrial personal computer, together
When EPS industrial personal computer is passed back by the voltage value of the current hall electric machine sensor of internal sample module samples, industrial personal computer will pass
The voltage value returned is compared, if deviation is in allowed limits, hall electric machine sensor feed circuit normally enters S4,
Otherwise circuit abnormality alarms and interrupts detection；
S4 watchdog circuits detect：Industrial personal computer sends the instruction of watchdog circuit tests to EPS, and EPS is to watchdog circuits
It is tested, normally feeds and the number of EPS warm resets and hard reset is transmitted back to industrial personal computer under dog state, then interrupted and feed dog EPS
Restart, then the number of EPS warm resets and hard reset is transmitted back to industrial personal computer, if warm reset number is constant, hard reset number increases
Add 1, then watchdog circuits normally enter S5, otherwise circuit abnormality, alarm and interrupt detection；
S5 sensor signal input circuits detect：
S51 torques/angular transducer signal input circuit detection：Industrial personal computer predefine the frequencies of PWM square-wave signals, duty ratio,
Amplitude, and control the corresponding pwm signal of programmable signal generator generation and be supplied to EPS controllers, while industrial personal computer is controlled to EPS
Device sends torque/angular transducer signal input detection instruction, and EPS acquires pwm signal by internal sample unit, obtains corresponding
Frequency, duty ratio be transmitted back to industrial personal computer, industrial personal computer is by the frequency for the pwm signal passed back, duty ratio and predefined pwm signal
Frequency, duty ratio be compared, if deviation is in allowed limits, torque/angular transducer signal input circuit is normal
Into S52, otherwise circuit abnormality, alarms and interrupts detection；
S52 Hall sensor signal input circuits detect：Industrial personal computer predefines frequency, duty ratio, the amplitude of PWM square-wave signals,
And control the corresponding pwm signal of programmable signal generator generation and be supplied to EPS controllers, while industrial personal computer is sent out to EPS controllers
The input detection instruction of Hall sensor signal, EPS is sent to acquire pwm signal by internal sample unit, obtain corresponding frequency, account for
Sky than being transmitted back to industrial personal computer, industrial personal computer by the frequency for the pwm signal passed back, the frequency of duty ratio and predefined pwm signal, account for
Empty ratio is compared, if deviation is in allowed limits, Hall sensor signal input circuit normally enters S6, otherwise circuit
It is abnormal, it alarms and interrupts detection；
S6 eeprom circuits detect：Industrial personal computer sends eeprom circuit detection detection instruction to EPS controllers, and EPS is executed instruction
And reading, write state and data are transmitted back to industrial personal computer, if state and data are errorless, eeprom circuit normally enters S7,
Otherwise circuit abnormality alarms and interrupts detection；
S7 Motor driving circuits detect：Industrial personal computer predefines the different current value in three tunnel sizes, direction and is sent to EPS controls
Device, EPS export three road current signals to program-control electronic load, and program-control electronic load receives current signal and passes industrial personal computer back, together
When industrial personal computer to EPS controllers send Motor driving circuits detection instruction, EPS controllers from sampling three road current values be transmitted back to
Current value twice is compared by industrial personal computer, industrial personal computer, if deviation is in allowed limits, motor-drive circuit and motor
Current sampling circuit normally enters S8, otherwise circuit abnormality, alarms and interrupts detection；
S8 detections terminate, and industrial personal computer sends out prompting sound, and EPS controllers are offline.
Detection program is set by industrial personal computer, according to predefined parameter in an orderly manner to each circuit unit in the inside ECU04D
It is detected, if it find that failure feeds back to inspector by alarm, product line worker's working strength can be reduced, improve detection effect
Rate, accuracy, professional, the readable and trackability of enhancing product testing record.
Claims (4)
1. a kind of system of automatic detection EPS controllers, it is characterised in that：Including industrial personal computer, programme-controlled dc power, program-controlled igniting
Signal source, program-controlled sampling module, programmable signal generator, EPS controllers, wherein
Industrial personal computer, the order process for controlling automatic detection EPS controllers, reads and identifies the status data of EPS controllers,
Detection journal file is generated simultaneously and is stored；
Programme-controlled dc power provides operating voltage for receiving industrial personal computer instruction for EPS controllers；
Program-controlled ignition signal source provides ignition signal for receiving industrial personal computer instruction for EPS controllers；
Program-controlled sampling module, the output signal for receiving industrial personal computer instruction sampling EPS controllers；
Programmable signal generator generates signal transmission to EPS controllers for receiving industrial personal computer instruction；
Program-control electronic load receives the current signal of EPS controllers output for receiving industrial personal computer instruction；
EPS controllers, receive industrial personal computer instruction in an orderly manner complete circuit detection and by detection data be transmitted back to industrial personal computer for point
Analysis judges.
2. a kind of system of automatic detection EPS controllers according to claim 1, it is characterised in that：The program-controlled letter
The signal that number generator generates is amplitude, frequency, the adjustable PWM square-wave signals of duty ratio and the adjustable voltage signal of voltage.
3. a kind of system of automatic detection EPS controllers according to claim 1, it is characterised in that：The industrial personal computer,
It is communicated between programme-controlled dc power, program-controlled ignition signal source, program-controlled sampling module, programmable signal generator, program-control electronic load
By RS232/RS485/CAN data lines, is communicated between industrial personal computer and EPS controllers and pass through CAN data lines.
4. a kind of method of automatic detection EPS controllers, it is characterised in that：
S1 CAN communication circuits detect：Industrial personal computer controls programme-controlled dc power and provides operating voltage to EPS controllers, controls simultaneously
Program-controlled ignition signal source provides ignition signal to EPS controllers so that after EPS controllers are started to work, industrial personal computer is controlled to EPS
Device sends inquiry frame, if EPS can normal response, CAN communication circuit is normal and enters S2, otherwise circuit abnormality, and alarm is simultaneously
Interrupt detection；
S2 thermosensitive circuits detect：Industrial personal computer sends Current Temperatures to EPS controllers and inquires that frame, EPS acquire temperature sensor
Current temperature value sends back industrial personal computer, industrial personal computer by predefined temperature value in the EPS current temperature values passed back and industrial personal computer into
Row compares, if deviation is in allowed limits, thermosensitive circuit normally enters S3, otherwise circuit abnormality, alarms and interrupts inspection
It surveys；
S3 electric power management circuits detect, and are divided into the detection of work supply voltage circuit, the detection of ignition signal circuit, sensor power supply
Circuit detects：
S31 work supply voltage circuit detections：Industrial personal computer control program-controlled ignition signal source output voltage is fixed value and controls journey
It controls direct current power source voltage to press fixed step size increase in a certain range or decay, while changing every time to EPS and sending inquiry frame, such as
Fruit EPS can normal response, the voltage value of the programme-controlled dc power of start recording at that time, if EPS is no longer replied in change procedure,
The voltage value of record is transmitted back to industrial personal computer, the voltage value that industrial personal computer will be passed back by the voltage value for not re-recording programme-controlled dc power
It is compared with two boundary values of predefined normal power supply voltage range, if deviation in allowed limits, is powered
Potential circuit normally enters S32, otherwise circuit abnormality, alarms and interrupts detection；
S32 ignition signal circuits detect：Industrial personal computer control programme-controlled dc power voltage output voltage is fixed value and controls program-controlled
Ignition signal source presses fixed step size and increases or decay in a certain range, while changing every time to EPS and sending inquiry frame, if
EPS can normal response, the voltage value in the program-controlled ignition signal source of start recording at that time, if EPS is no longer replied in change procedure,
The voltage value of record is transmitted back to industrial personal computer, the voltage that industrial personal computer will be passed back by the voltage value for not re-recording program-controlled ignition signal source
Value is compared with two boundary values of predefined normal power supply voltage range, if deviation is in allowed limits, point
Fiery signal circuit normally enters S33, otherwise circuit abnormality, alarms and interrupts detection；
S33 sensor feed circuits detect：Industrial personal computer is sent the sensing for current class by categories of sensors to EPS in an orderly manner
Device provides the instruction of operating voltage, and EPS executes command adapted thereto output voltage signal, program-controlled sampling module acquisition current sensor
Voltage value is transmitted back to industrial personal computer, while EPS passes work back by the voltage value of internal sample module samples current sensor sensor
The voltage value passed back is compared by control machine, industrial personal computer, if deviation is in allowed limits, the sensor of current class supplies
Circuit is normal, repeats to finish up to sensor all detects into S33 and all normally enter S4, otherwise circuit abnormality, alarm
And interrupt detection；
S4 watchdog circuits detect：Industrial personal computer sends the instruction of watchdog circuit tests to EPS, and EPS is to watchdog circuits
It is tested, normally feeds and the number of EPS warm resets and hard reset is transmitted back to industrial personal computer under dog state, then interrupted and feed dog EPS
Restart, then the number of EPS warm resets and hard reset is transmitted back to industrial personal computer, if warm reset number is constant, hard reset number increases
Add 1, then watchdog circuits normally enter S5, otherwise circuit abnormality, alarm and interrupt detection；
S5 sensor signal input circuits detect：Industrial personal computer predefines frequency, duty ratio, the amplitude of PWM square-wave signals, and controls
Programmable signal generator processed generates corresponding pwm signal and is supplied to EPS controllers, while industrial personal computer presses categories of sensors to EPS
Controller sends the signal input detection instruction of certain current class individual sensor, and EPS acquires PWM by internal sample unit to be believed
Number, obtain corresponding frequency, duty ratio is transmitted back to industrial personal computer, industrial personal computer by the frequency for the pwm signal passed back, duty ratio with it is predetermined
Frequency, the duty ratio of the pwm signal of justice are compared, if deviation is in allowed limits, the sensor of current class is believed
Number input circuit is normal, repeat to enter S5 until sensor all detection finishes and the input of each sensor signal normally enters
S6, otherwise circuit abnormality, alarms and interrupts detection；
S6 eeprom circuits detect：Industrial personal computer sends eeprom circuit detection detection instruction to EPS controllers, and EPS is executed instruction
And reading, write state and data are transmitted back to industrial personal computer, if state and data are errorless, eeprom circuit normally enters S7,
Otherwise circuit abnormality alarms and interrupts detection；
S7 Motor driving circuits detect：Industrial personal computer predefines the different current value in three tunnel sizes, direction and is sent to EPS controls
Device, EPS export three road current signals to program-control electronic load, and program-control electronic load receives current signal and passes industrial personal computer back, together
When industrial personal computer to EPS controllers send Motor driving circuits detection instruction, EPS controllers from sampling three road current values be transmitted back to
Current value twice is compared by industrial personal computer, industrial personal computer, if deviation is in allowed limits, motor-drive circuit and motor
Current sampling circuit normally enters S8, otherwise circuit abnormality, alarms and interrupts detection；
S8 detections terminate, and industrial personal computer sends out prompting sound, and EPS controllers are offline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810359244.7A CN108445871A (en) | 2018-04-20 | 2018-04-20 | A kind of system and method for automatic detection EPS controller circuitry units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810359244.7A CN108445871A (en) | 2018-04-20 | 2018-04-20 | A kind of system and method for automatic detection EPS controller circuitry units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108445871A true CN108445871A (en) | 2018-08-24 |
Family
ID=63200466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810359244.7A Pending CN108445871A (en) | 2018-04-20 | 2018-04-20 | A kind of system and method for automatic detection EPS controller circuitry units |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108445871A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109634264A (en) * | 2019-02-15 | 2019-04-16 | 东北林业大学 | A kind of EPS controller ageing management system and its control method |
| CN109814525A (en) * | 2018-12-29 | 2019-05-28 | 惠州市德赛西威汽车电子股份有限公司 | A kind of automated testing method detecting automobile ECU CAN bus communication voltage range |
| CN111983948A (en) * | 2020-07-07 | 2020-11-24 | 宝能(广州)汽车研究院有限公司 | Multi-sensor data synchronization method and equipment thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897165A (en) * | 2012-11-05 | 2013-01-30 | 北京经纬恒润科技有限公司 | Hybrid integrated controller |
| CN104750102A (en) * | 2015-04-10 | 2015-07-01 | 哈尔滨力盛达机电科技有限公司 | Environment stress screening device used for electric power assisted steering system |
| CN106774263A (en) * | 2016-12-28 | 2017-05-31 | 海特汽车科技（苏州）有限公司 | A kind of EPS controller tests system and device |
-
2018
- 2018-04-20 CN CN201810359244.7A patent/CN108445871A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897165A (en) * | 2012-11-05 | 2013-01-30 | 北京经纬恒润科技有限公司 | Hybrid integrated controller |
| CN104750102A (en) * | 2015-04-10 | 2015-07-01 | 哈尔滨力盛达机电科技有限公司 | Environment stress screening device used for electric power assisted steering system |
| CN106774263A (en) * | 2016-12-28 | 2017-05-31 | 海特汽车科技（苏州）有限公司 | A kind of EPS controller tests system and device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109814525A (en) * | 2018-12-29 | 2019-05-28 | 惠州市德赛西威汽车电子股份有限公司 | A kind of automated testing method detecting automobile ECU CAN bus communication voltage range |
| CN109814525B (en) * | 2018-12-29 | 2022-03-22 | 惠州市德赛西威汽车电子股份有限公司 | Automatic test method for detecting communication voltage range of automobile ECU CAN bus |
| CN109634264A (en) * | 2019-02-15 | 2019-04-16 | 东北林业大学 | A kind of EPS controller ageing management system and its control method |
| CN109634264B (en) * | 2019-02-15 | 2023-12-05 | 东北林业大学 | EPS controller aging detection system and control method thereof |
| CN111983948A (en) * | 2020-07-07 | 2020-11-24 | 宝能(广州)汽车研究院有限公司 | Multi-sensor data synchronization method and equipment thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108445871A (en) | A kind of system and method for automatic detection EPS controller circuitry units | |
| CN101434045B (en) | Device for calibrating relationship between current of electric machine of numerically controlled machine and cutting load | |
| CN107462423A (en) | The method and device of brake pedal position detection | |
| CN202331190U (en) | Movable type comprehensive test table of electric power steering controller | |
| CN201892602U (en) | Intelligent loading-type torque calibration system | |
| CN103294051B (en) | A kind of gas combustion automobile ECU comprehensive intelligent detection method | |
| WO2017101135A1 (en) | Intelligent detection system for electromagnetic brake | |
| CN103389730A (en) | Method and device for configuring electric power steering control parameters | |
| CN204203431U (en) | Switched Reluctance Motor pick-up unit | |
| CN109552406B (en) | Universal electronic steering controller applied to unmanned vehicle | |
| CN105094012A (en) | Online measuring and controlling apparatus and method for electric driving system of electric automobiles | |
| CN105035158B (en) | Electric power steering method and system | |
| CN111273171A (en) | Alternating current servo loading test system | |
| CN110647120B (en) | Motion control method suitable for extreme application conditions | |
| US20050278146A1 (en) | Method for simplified real-time diagnoses using adaptive modeling | |
| CN218994618U (en) | Torque rotation angle sensor assembly tester | |
| KR20150061982A (en) | System and method for diagnosing camera | |
| CN103692350B (en) | The integrated numerical control Development of Grinding Machines'Control System that tape jam detects | |
| CN109484472A (en) | Method and apparatus for error protection electric power steering | |
| CN110580005B (en) | Motion control system suitable for extreme application conditions | |
| CN104049220A (en) | Automatic voltage regulator and control method thereof | |
| DE102021131083A1 (en) | DIAGNOSIS OF AN INPUT POWER CONDITION FOR AN ELECTRIC POWER STEERING | |
| CN109085500A (en) | A kind of detection test macro of direct current generator current ripples parameter | |
| CN206376669U (en) | A kind of intelligent early-warning window system | |
| CN214585766U (en) | Off-line EPS controller endurance test equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180824 |
|
| RJ01 | Rejection of invention patent application after publication |