CN106444698B - Comprehensive test device and test method for tire pressure monitoring system - Google Patents
Comprehensive test device and test method for tire pressure monitoring system Download PDFInfo
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- CN106444698B CN106444698B CN201610786337.9A CN201610786337A CN106444698B CN 106444698 B CN106444698 B CN 106444698B CN 201610786337 A CN201610786337 A CN 201610786337A CN 106444698 B CN106444698 B CN 106444698B
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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
- 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
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
Abstract
The invention discloses a kind of comprehensive test device and test method for tire pressure monitoring system, device includes host computer, programmable power supply and test cell, and test cell includes sensitivity test module, Basic function testing module and signal quality testing module.The present invention integrates tire pressure monitoring system and tests environment, realize the sensitivity test to tire pressure monitoring system, function performance verification is carried out to tire pressure monitoring system, meet tire pressure monitoring system exploitation demand, reduce the testing time, test environmental stability is improved, test result reliability is improved: saving manual, each test item separation and tests built experimental enviroment, debugging test rack time；Solve the problems such as building rack electrical environment unstability that may be present, test environment otherness manually.
Description
Technical field
The present invention relates to automotive engineering fields, specifically refer to a kind of comprehensive test device for tire pressure monitoring system
And test method.
Background technique
Tire Pressure Monitor System (TPMS) is as what the information such as a kind of pair of air pressure of automobile tire, temperature were detected
System, tire pressure monitoring system is mainly by 1 tire pressure monitoring system ECU and 4 tire pressure monitoring system sensor structures being placed in tire
At.The tire pressure detected is sent to controller by radiofrequency signal by tyre pressure sensor；Controller receives tire pressure
Afterwards, it is shown by the display terminal that CAN bus is sent to vehicle.Tire pressure monitoring system ECU and tire pressure monitoring system sensing
The reliability of the sensitivity of device and system work is particularly significant to traffic safety.Therefore, to the module normal function and performance
Test verifying is particularly important.Currently, not yet there is the test device of the sensitivity test for Tire Pressure Monitor System
And method.
Summary of the invention
The purpose of the present invention is carry out sensitivity test and performance verification for currently without to Tire Pressure Monitor System
The problem of, and a kind of comprehensive test device and test method for tire pressure monitoring system proposed.
To achieve the above object, the comprehensive test device for tire pressure monitoring system designed by the present invention, including it is upper
Machine, programmable power supply and test cell, are characterized in that, the test cell includes sensitivity test module；
The host computer is used to control the unlatching, setting and closing of operational blocks which partition system in test cell, and it is single to receive the test
The return value of operational blocks which partition system outputs test result and shows by calculating in member；
The programmable power supply is used to be powered according to the instruction of the host computer to test cell and tire pressure monitoring system ECU；
The sensitivity test module is used to send sensitivity to tire pressure monitoring system ECU according to the control of the host computer
Then test radio frequency analog signal and the sensitivity test radiofrequency signal for receiving tire pressure monitoring system ECU return will transmit and receive
Situation returns to host computer.
Further, the test cell further includes Basic function testing module, and the Basic function testing module is used for
Tire pressure monitoring system sensor environment parameter is set according to the control of the host computer, then receives the tire pressure monitoring system and passes
The sensor environment bus signals that the sensor environment radiofrequency signal and the tire pressure monitoring system ECU that sensor is sent return, then
Return value is sent to signal quality testing module described in host computer to be used to control and receive tire pressure monitoring according to the host computer
Return value is simultaneously sent to host computer by the signal quality radiofrequency signal of system sensor transmission.
Further, the test cell further includes signal quality testing module, and the signal quality testing module is used
In the signal quality radiofrequency signal for controlling and receiving the transmission of tire pressure monitoring system sensor according to the host computer and by return value
It is sent to host computer.
Further, the sensitivity test module include signal generating source, power amplifier, signal transmitting module and
Monitoring modular is received, the signal generating source is used to generate sensitivity test radio frequency analog letter according to the control of the host computer
Number, the power amplifier is used for the power of the control adjustment sensitivity test radio frequency analog signal according to the host computer, institute
Signal transmitting module is stated for sensitivity test radio frequency analog signal to be sent to tire pressure monitoring system ECU and receives monitoring mould
Block, the reception monitoring modular are big with the power of sensitivity test radiofrequency signal for comparing sensitivity test radio frequency analog letter
It is small, and return value is sent to host computer.
Further, the Basic function testing module includes data tire environment simulator and parsing module, institute
Tire environment simulator is stated for tire pressure monitoring system sensor, the parsing module to be arranged according to the control of the host computer
The sensing that sensor environment radiofrequency signal and tire pressure monitoring system ECU for receiving the transmission of tire pressure monitoring system sensor return
Return value is simultaneously sent to host computer by device environment bus signals.Further, the signal quality testing module includes frequency spectrum
Analytical equipment, the spectrum analysis equipment is for receiving tire pressure monitoring system sensor transmission signal quality radiofrequency signal and will return
It returns value and is sent to host computer.
Further, the tire environment simulator includes driving equipment, gas storage equipment and temperature control device.
Further, the parsing module includes bus data parsing module and radio frequency parsing module.
A kind of test method using the above-mentioned comprehensive test device for tire pressure monitoring system, is characterized in that,
The method includes sensitivity tests；
The step of sensitivity test are as follows: the host computer opens sensitivity test module, and sensitivity test is arranged
The performance number of radio frequency analog signal, control sensitivity test module carries out sensitivity test, according to returning for sensitivity test module
Return the watt level or sensitivity test of value display sensitivity test radio frequency analog signal and sensitivity test radiofrequency signal
Radio frequency analog signal does not receive success.
Preferably, the test cell further includes Basic function testing module, and the method also includes Basic function testings；
The step of Basic function testing are as follows: the host computer opens Basic function testing module, and sensor environment parameter is arranged,
It controls the Basic function testing module and adjusts tire pressure monitoring system sensor local environment to designated value, surveyed according to basic function
The return value of die trial block by calculate detect the acceleration under the tire pressure monitoring system sensor detection accuracy whether effectively,
Data send whether normal, whether sensor element is effective, and whether the function of the tire pressure monitoring system ECU fail, plan of alarming
It is slightly whether normal, then show testing result.
Preferably, the test cell further includes signal quality testing module；The method also includes signal quality testings；
The step of signal quality testing are as follows: the host computer open signal quality test module and Basic function testing module, and
Temperature value in sensor environment parameter is set, controls the signal quality testing module reception tire pressure monitoring system sensor and exists
The signal quality radiofrequency signal sent at this temperature, the host computer judge wherein according to the radiofrequency signal returned under different temperatures
Frequency of heart, frequency deviation region and performance number draw signal quality curve whether in design value, then show testing result.
Preferably, the range of the performance number of the sensitivity test radio frequency analog signal is -100dbm~0dbm.
Preferably, the sensor environment parameter includes vehicle tire rotational speed, tire pressure, temperature value.
Preferably, the centre carrier frequency of the signal quality radiofrequency signal is 433.92MHz, frequency deviation region ± 45KHz
For and the range of performance number be -100dbm~0dbm.
Analog tire environment of the present invention carries out normal function to tire pressure monitoring system and performance is tested, and exports survey
Test result specifically has tire pressure monitoring system sensitivity test, Basic function testing and signal quality testing function, by aobvious
Show/operating terminal and computer control system can carry out the unlatching, setting and closing of test function, and output test result.
The present invention has the advantages that integrated tire pressure monitoring system tests environment, realizes and tire pressure monitoring system sensitivity is surveyed
Examination carries out function performance verification to tire pressure monitoring system, meets tire pressure monitoring system exploitation demand, reduces the testing time, improve and survey
Environmental stability is tried, test result reliability is improved: saving manual, each test item separation and tests built experimental enviroment, adjusts
Try the test-bed time；Solve the problems such as building rack electrical environment unstability that may be present, test environment otherness manually.
Detailed description of the invention
Fig. 1 is structural block diagram of the present invention for the comprehensive test device of tire pressure monitoring system；
Fig. 2 is the structural block diagram of Fig. 1 medium sensitivity test module；
Fig. 3 is the structural block diagram of Basic function testing module in Fig. 1；
Fig. 4 is the structural block diagram of signal quality testing module in Fig. 1；
Fig. 5 is the process of test method medium sensitivity test of the present invention for the comprehensive test device of tire pressure monitoring system
Figure；
Fig. 6 is stream of the present invention for Basic function testing in the test method of the comprehensive test device of tire pressure monitoring system
Cheng Tu, wherein Fig. 6 a is sensor function test flow chart, and Fig. 6 b is controller function test flow chart；
Fig. 7 is stream of the present invention for signal quality testing in the test method of the comprehensive test device of tire pressure monitoring system
Cheng Tu.
In figure: host computer 1, display/operating terminal 1-1, computer control system 1-2, programmable power supply 2, sensitivity test
Module 3, signal generating source 3-1, power amplifier 3-2, signal transmitting module 3-3 receive monitoring modular 3-4, and basic function is surveyed
Die trial block 4, tire environment simulator 4-1, driving equipment 4-11, gas storage equipment 4-12, temperature control device 4-13, parsing module 4-
2, bus data parsing module 4-21, radio frequency parsing module 4-22, signal quality testing module 5, spectrum analysis equipment 5-1, tire
Press monitoring system ECU6, tire pressure monitoring system sensor 7.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in figures 1-4, a kind of comprehensive test device for tire pressure monitoring system of the present invention, including host computer 1, journey
Control power supply 2 and test cell.Host computer 1 is connect with the input terminal of programmable power supply 2, the output end of programmable power supply 2 respectively with test
Module is connected with tire pressure monitoring system ECU6, tire pressure monitoring system sensor 7 respectively with test cell and tire pressure monitoring system
ECU6 connection, test cell include sensitivity test module 3, Basic function testing module 4 and signal quality testing module 5.
Host computer 1 is used to control the unlatching, setting and closing of operational blocks which partition system in test cell, receives any in test cell
The return value of module outputs test result and shows by calculating.Host computer 1 includes display/operating terminal 1-1 and computer control
System 1-2 processed, display/operating terminal 1-1 are for showing and inputting setting value, and computer control system 1-2 is for calculating.
Programmable power supply 2 is used to be powered according to the instruction of host computer 1 to test cell and tire pressure monitoring system ECU6.
Sensitivity test module 3 is used to send sensitivity test to tire pressure monitoring system ECU6 according to the control of host computer 1
Radio frequency analog signal and the sensitivity test radiofrequency signal for receiving tire pressure monitoring system ECU6 return, then will transmit and receive situation
Return to host computer 1.Sensitivity test module 3 includes signal generating source 3-1, power amplifier 3-2, signal transmitting module 3-3
It is used to generate sensitivity test radio frequency analog letter according to the control of host computer 1 with reception monitoring modular 3-4, signal generating source 3-1
Number, power amplifier 3-2 is used for the power of the control adjustment sensitivity test radio frequency analog signal according to host computer 1, signal hair
Send module 3-3 for sensitivity test radio frequency analog signal to be sent to tire pressure monitoring system ECU6 and receives monitoring modular 3-4,
The watt level that monitoring modular 3-4 is used to compare sensitivity test radio frequency analog letter and sensitivity test radiofrequency signal is received, and
Return value is sent to host computer 1.
Basic function testing module 4 is used to be joined according to 7 environment of control and regulation tire pressure monitoring system sensor of host computer 1
Number, and sensor rotation speed is adjusted, it works for trigger sensor, then receives the sensor that tire pressure monitoring system sensor 7 is sent
The sensor environment bus signals that ambient radio-frequency signal and tire pressure monitoring system ECU6 are returned, then return value is sent to host computer
1.Basic function testing module 4 includes data tire environment simulator 4-1 and parsing module 4-2, tire environment simulator
4-1 is used for according to the parameter value for controlling to adjust test environment locating for tire pressure monitoring system sensor 7 of host computer 1, including tire pressure
Environment temperature locating for monitoring system sensor 7, air pressure and acceleration.Parsing module 4-2 is for receiving tire pressure monitoring system biography
The sensor environment bus signals for sensor environment radiofrequency signal and tire pressure monitoring system the ECU6 return that sensor 7 is sent will simultaneously return
It returns value and is sent to host computer 1.The sensor environment radiofrequency signal that tire pressure monitoring system sensor 7 is sent carries detected ring
Border temperature, pressure information.Parsing module 4-2 includes bus data parsing module 4-21 and radio frequency parsing module 4-22, is used respectively
In the validity for examining controller part and sensor element.Tire environment simulator 4-1 includes driving equipment 4-11, gas storage
Equipment 4-12 and temperature control device 4-13.Driving equipment 4-11 is rotated according to the target value of host computer 1 by the motor driven device
Real vehicle tire rotational speed is simulated, and can be by speed feedback that simulator actually reaches to host computer 1；Gas storage equipment 4-12 is according to upper
The target value of position machine 1 simulates tire pressure, and the air pressure that can actually reach simulator by carrying out inflation/deflation to the device
Feed back to host computer 1；Temperature control device 4-13 adjusts temperature in the device by controlling adding thermal resistance according to the target value of host computer 1
Tire temperature is simulated, and the tire temperature that simulator actually reaches can be fed back to host computer 1, for detecting tire pressure monitoring system
Effective operating speed range and tire pressure and temperature detection accuracy.
Signal quality testing module 5 is used for the letter for controlling and receiving the transmission of tire pressure monitoring system sensor 7 according to host computer 1
Return value is simultaneously sent to host computer 1 by number quality radiofrequency signal.Signal quality testing module 5 includes spectrum analysis equipment 5-1, frequency
Spectrum analysis equipment 5-1 is for receiving the transmission signal quality radiofrequency signal of tire pressure monitoring system sensor 7 and being sent to return value
Host computer 1.
Using the test method of the above-mentioned comprehensive test device for tire pressure monitoring system, including it is sensitivity test, basic
Functional test and signal quality testing, three kinds of test methods do not have timing requirements, relatively independent can also complete.
Sensitivity test
The control principle of sensitivity test is as shown in figure 5, host computer 1 opens sensitivity test module 3, and sensitivity is arranged
The performance number of radio frequency analog signal is tested, control sensitivity test module 3 carries out sensitivity test, according to sensitivity test module
3 return value display sensitivity test radio frequency analog signal and the watt level or sensitivity of sensitivity test radiofrequency signal
Test radio frequency analog signal does not receive success.
The specific steps of sensitivity test method include:
1) host computer 1 opens sensitivity test module 3.
2) host computer 1 controls signal generating source 3-1 and generates initial sensitivity test radio frequency analog signal, and setting power is put
The echo signal watt level of big device 3-2；The range of the performance number of sensitivity test radio frequency analog signal be -100dbm~
0dbm。
3) power amplifier 3-2 regulation power greatly as low as after target value signal transmitting module 3-3 by sensitivity test radio frequency
Analog signal is sent to tire pressure monitoring system ECU6 and receives monitoring modular 3-4.
4) tire pressure monitoring system ECU6 tests radiofrequency signal to monitoring modular 3-4 feedback sensitivity is received.
5) reception monitoring modular 3-4 receives sensitivity test radiofrequency signal and then receives success, compares sensitivity test and penetrates
The watt level of frequency simulation letter and sensitivity test radiofrequency signal, and return value is sent to host computer 1 and is recorded, then with specified
Step-by-step adjustment watt level target value and return step 3)；It receives monitoring modular 3-4 and does not receive sensitivity test radiofrequency signal
The minimum sensitivity unsuccessful, the watt level that the record last time of host computer 1 is properly received is tire pressure monitoring system ECU6 is then received,
And show test result.
Basic function testing
As shown in figures 6 a and 6b, host computer 1 opens Basic function testing module to the flow chart of Basic function testing process
4, and sensor environment parameter is set, control Basic function testing module 4 adjust 7 local environment of tire pressure monitoring system sensor to
Specified temperature, air pressure and tyre accelerations detect the acceleration by calculating according to the return value of Basic function testing module 4
Whether the detection accuracy of lower tire pressure monitoring system sensor 7 is effective, whether sensor element is effective, tire pressure monitoring system ECU6's
Effectively whether component, whether the function of tire pressure monitoring system ECU6 is effective, whether alarm strategy is normal, then shows detection knot
Fruit.
The specific steps of Basic function testing method include:
1) host computer 1 opens Basic function testing module 4.
2) real-time vehicle tire rotational speed, the tire pressure and temperature of gas storage equipment 4-12 of driving equipment 4-11 is arranged in host computer 1
Control the temperature value of the tire of equipment 4-13.
3) driving equipment 4-11, gas storage equipment 4-12 and temperature control device 4-13 receive the setting state modulator requirement of host computer 1,
Tire rotary acceleration, the air pressure, temperature of setting 7 local environment of tire pressure monitoring system sensor are adjusted respectively.
4) radio frequency parsing module 4-22 parses the sensor environment radiofrequency signal that tire pressure monitoring system sensor 7 is sent, system
It counts tire pressure monitoring system sensor 7 and sends data frame number, and tire pressure, tire temperature value and data frame number are sent to host computer 1.
5) host computer 1 compares the actual rings adjusted of driving equipment 4-11, gas storage equipment 4-12 and temperature control device 4-13
Entrained environmental information, judgement in the sensor environment radiofrequency signal that border parameter value and tire pressure monitoring system sensor 7 are fed back
Whether the precision of tire pressure monitoring system sensor 7 is that detection accuracy is effectively gone in next step within rated value, is otherwise shown
Detection accuracy failure.
6) host computer 1 checks that tire pressure monitoring system sensor 7 sends data frame number whether in desired extent, is to sense
Device component is effectively gone in next step, otherwise shows sensor failure.
7) bus data parsing module 4-21 parses the sensor environment bus signals that tire pressure monitoring system ECU6 is sent, will
Tire pressure, tire temperature and the receiving sensor data frame number that tire pressure monitoring system ECU6 is sent are sent to host computer 1.
8) host computer 1 compares the sensor environment radiofrequency signal and tire pressure monitoring system that tire pressure monitoring system sensor 7 is fed back
The sensor environment bus signals for ECU6 feedback of uniting judge whether the parsing of tire pressure monitoring system ECU6 data is effective, is then tire pressure
The component of monitoring system ECU6 is effectively gone in next step, otherwise shows that tire pressure monitoring system ECU6 fails.
9) host computer 1 checks tire pressure monitoring system ECU6 frames received and tire pressure monitoring system sensor 7) send data frame
Whether number difference is that the function of tire pressure monitoring system ECU6 is effectively gone in next step, otherwise shows tire pressure in rated range
Monitoring system ECU6 failure.
10) the environmental simulation parameter in environment simulator, including atmospheric pressure value, temperature value are adjusted separately, makes it beyond report
Alert threshold value.
11) whether the bus data analytic signal that host computer 1 monitors tire pressure monitoring system ECU6 alarms, and is strategy of alarming
It effectively goes in next step, otherwise shows alarm strategy fails.
12) host computer 1 changes vehicle tire rotational speed, return step 2).
Signal quality testing
The flow chart of signal quality testing is as shown in fig. 7,1 open signal quality test module 5 of host computer and basic function
Test module 4, and and the temperature value that is arranged in sensor environment parameter, signal quality testing module 5 receive tire pressure monitoring system
The signal quality radiofrequency signal that sensor 7 is sent at such a temperature, host computer 1 are sentenced according to the radiofrequency signal returned under different temperatures
Its centre frequency, frequency deviation region and performance number break whether in design value, and draws signal quality curve, then shows detection knot
Fruit.
The specific steps of signal quality testing method include:
1) 1 open signal quality test module 5 of host computer and Basic function testing module 4.
2) the tire ambient temperature value of temperature control device 4-13 is arranged in host computer 1, and spectrum analysis equipment 5-1 receives the temperature ring
Under border tire pressure monitoring system sensor 7 send signal quality radiofrequency signal and feed back to host computer 1.
3) host computer 1 records the test result of the temperature spot and its spectrum analyzer, exports to display terminal, according to test
Demand, if carry out signal quality testing under next temperature spot environment, if desired then go in next step, the test scope of temperature
It is -45 DEG C~125 DEG C.
4) centre frequency of 5 measuring signal quality radiofrequency signal of signal quality testing module, and send supreme position machine 1.
5) frequency deviation of 5 measuring signal quality radiofrequency signal of signal quality testing module, and send supreme position machine 1.
6) power of 5 measuring signal quality radiofrequency signal of signal quality testing module, and send supreme position machine 1.
7) whether centre frequency, frequency deviation and the performance number that host computer 1 calculates signal quality radiofrequency signal are believed in design value
The centre carrier frequency of number quality radiofrequency signal is 433.92MHz；The frequency deviation region of signal quality radiofrequency signal is ± 45KHz；
The range of the performance number of signal quality radiofrequency signal is -100dbm~0dbm.Host computer 1 is drawn according to above-mentioned return value and design value
Frequency deviation and transmission power curve processed, and judge whether to the test of next temperature spot is then return step 2), otherwise test
At.
The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (13)
1. a kind of comprehensive test device for tire pressure monitoring system, including host computer (1), programmable power supply (2) and test cell,
It is characterized by: the test cell includes sensitivity test module (3)；
The host computer (1) is used to control the unlatching, setting and closing of operational blocks which partition system in test cell, receives the test cell
The return value of middle operational blocks which partition system outputs test result and shows by calculating；
The programmable power supply (2) is used for according to the instruction of the host computer (1) to test cell and tire pressure monitoring system ECU (6)
Power supply；
The sensitivity test module (3) is used to be sent according to the control of the host computer (1) to tire pressure monitoring system ECU (6)
Then sensitivity test radio frequency analog signal and the sensitivity test radiofrequency signal for receiving tire pressure monitoring system ECU (6) return will
It transmits and receives situation and returns to host computer (1)；
The sensitivity test module (3) includes signal generating source (3-1), power amplifier (3-2), signal transmitting module (3-
3) and monitoring modular (3-4) is received, the signal generating source (3-1) is used to generate according to the control of the host computer (1) sensitive
Degree test radio frequency analog signal, the power amplifier (3-2) are used to adjust sensitivity according to the control of the host computer (1) and survey
The power of radio frequency analog signal is tried, the signal transmitting module (3-3) is for sensitivity test radio frequency analog signal to be sent to
Tire pressure monitoring system ECU (6) and reception monitoring modular (3-4), the reception monitoring modular (3-4) is for comparing sensitivity test
The watt level of radio frequency analog letter and sensitivity test radiofrequency signal, and return value is sent to host computer (1).
2. the comprehensive test device according to claim 1 for tire pressure monitoring system, it is characterised in that: the test is single
Member further includes Basic function testing module (4), and the Basic function testing module (4) is used for the control according to the host computer (1)
It sets up and sets tire pressure monitoring system sensor (7) environmental parameter, then receive the biography that the tire pressure monitoring system sensor (7) sends
The sensor environment bus signals that sensor ambient radio-frequency signal and the tire pressure monitoring system ECU (6) are returned, then return value is sent out
It send to host computer (1).
3. the comprehensive test device according to claim 1 for tire pressure monitoring system, it is characterised in that: the test is single
Member further includes signal quality testing module (5), and the signal quality testing module (5) is used for the control according to the host computer (1)
System receives the signal quality radiofrequency signal that tire pressure monitoring system sensor (7) are sent and return value is sent to host computer (1).
4. the comprehensive test device according to claim 2 for tire pressure monitoring system, it is characterised in that: the basic training
Energy test module (4) includes data tire environment simulator (4-1) and parsing module (4-2), the tire environmental simulation dress
(4-1) is set for according to the control of the host computer (1) setting tire pressure monitoring system sensor (7), the parsing module (4-2)
Sensor environment radiofrequency signal and tire pressure monitoring system ECU (6) for receiving tire pressure monitoring system sensor (7) transmission return
Sensor environment bus signals and return value is sent to host computer (1).
5. the comprehensive test device according to claim 3 for tire pressure monitoring system, it is characterised in that: the signal matter
Measuring test module (5) includes spectrum analysis equipment (5-1), and the spectrum analysis equipment (5-1) is for receiving tire pressure monitoring system
Sensor (7) sends signal quality radiofrequency signal and return value is sent to host computer (1).
6. the comprehensive test device according to claim 4 for tire pressure monitoring system, it is characterised in that: the tyre ring
Border simulator (4-1) includes driving equipment (4-11), gas storage equipment (4-12) and temperature control device (4-13).
7. the comprehensive test device according to claim 4 for tire pressure monitoring system, it is characterised in that: the parsing mould
Block (4-2) includes bus data parsing module (4-21) and radio frequency parsing module (4-22).
8. a kind of test method using the comprehensive test device for tire pressure monitoring system described in claim 1, feature
Be: the method includes sensitivity tests；
The step of sensitivity test are as follows: the host computer (1) opens sensitivity test module (3), and sensitivity survey is arranged
The performance number of radio frequency analog signal is tried, control sensitivity test module (3) carries out sensitivity test, according to sensitivity test module
(3) watt level or sensitive of return value display sensitivity test radio frequency analog signal and sensitivity test radiofrequency signal
Degree test radio frequency analog signal does not receive success.
9. the test method of the comprehensive test device according to claim 8 for tire pressure monitoring system, it is characterised in that:
The test cell further includes Basic function testing module (4), and the method also includes Basic function testings；
The step of Basic function testing are as follows: the host computer (1) opens Basic function testing module (4), and sensing is arranged
Device environmental parameter controls the Basic function testing module (4) and adjusts tire pressure monitoring system sensor (7) local environment to specified
Value detects the tire pressure monitoring system sensing under the acceleration by calculating according to the return value of Basic function testing module (4)
Effectively whether the detection accuracy of device (7), whether data transmission is normal, whether sensor element is effective, the tire pressure monitoring system
Whether the function of ECU fails, whether strategy of alarming is normal, then shows testing result.
10. the test method of the comprehensive test device according to claim 9 for tire pressure monitoring system, feature exist
In: the test cell further includes signal quality testing module (5)；The method also includes signal quality testings；
The step of signal quality testing are as follows: host computer (1) the open signal quality test module (5) and basic function are surveyed
Die trial block (4), and the temperature value being arranged in sensor environment parameter control the signal quality testing module (5) and receive tire pressure
The signal quality radiofrequency signal that monitoring system sensor (7) is sent at such a temperature, the host computer (1) is according under different temperatures
The radiofrequency signal of return judge its centre frequency, frequency deviation region and performance number whether in design value, and draw signal quality song
Then line shows testing result.
11. the test method of the comprehensive test device according to claim 8 for tire pressure monitoring system, feature exist
In: the range of the performance number of the sensitivity test radio frequency analog signal is -100dbm~0dbm.
12. the test method of the comprehensive test device according to claim 9 for tire pressure monitoring system, feature exist
In: the sensor environment parameter includes vehicle tire rotational speed, tire pressure, temperature value.
13. the test method of the comprehensive test device according to claim 10 for tire pressure monitoring system, feature exist
In: the centre carrier frequency of the signal quality radiofrequency signal is 433.92MHz, frequency deviation region ± 45KHz is and performance number
Range is -100dbm~0dbm.
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| CN107449551A (en) * | 2017-09-04 | 2017-12-08 | 广东菲柯特电子科技有限公司 | Tire pressure sensor testing system and using method |
| ES2828645T3 (en) * | 2017-11-17 | 2021-05-27 | Butler Eng & Marketing S P A | Method of testing or verifying the indirect tire pressure monitoring system of a vehicle |
| CN107972423B (en) * | 2017-11-22 | 2019-12-31 | 广东菲柯特电子科技有限公司 | Testing system and method of tire monitoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052990A (en) * | 2009-12-23 | 2011-05-11 | 奇瑞汽车股份有限公司 | TPMS (Tire Pressure Monitor System) performance testing device and testing method |
| CN103754073A (en) * | 2014-01-06 | 2014-04-30 | 惠州华阳通用电子有限公司 | Method and device for testing communication reliability of tire pressure monitoring system |
| CN104330209A (en) * | 2014-08-29 | 2015-02-04 | 浙江中科领航汽车电子有限公司 | Test system of TPMS sensor module and test method thereof |
| CN204354738U (en) * | 2014-11-28 | 2015-05-27 | 埃泰克汽车电子(芜湖)有限公司 | TPMS system calibrating detecting device |
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