CN102564487B - Automobile sensor detection equipment and method for detecting performance of sensor by utilizing same - Google Patents
Automobile sensor detection equipment and method for detecting performance of sensor by utilizing same Download PDFInfo
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- CN102564487B CN102564487B CN201210022500.6A CN201210022500A CN102564487B CN 102564487 B CN102564487 B CN 102564487B CN 201210022500 A CN201210022500 A CN 201210022500A CN 102564487 B CN102564487 B CN 102564487B
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Abstract
The invention discloses automobile sensor detection equipment and a method for detecting the performances of sensors by utilizing the same. The automobile sensor detection equipment comprises a working table, a digital circuit transmission system, a workpiece clamping mechanism, a detection-air-gap regulating and detection mechanism, a signal system, a control system, a data acquisition system and a signal analysis system, wherein the digital circuit transmission system is arranged on the working table; the control system is arranged in the working table; a signal wheel and a sensor power supply are arranged in the signal system; and an acquisition card and a current sensor are arranged in the data acquisition system. According to the invention, the performances of a crankshaft position sensor, an ABS (Anti-lock Brake System) sensor, a camshaft position sensor, a vehicle speed sensor and the like can be subjected to comprehensive and automatic detection; the performances of the sensors can be comprehensively and automatically detected; the automobile sensor detection equipment not only has high precision, high stability and high efficiency and is easy to operate, but also is not influenced by the subjectivity of an operator; and the requirement on the optimal control of the performances of the sensors in the development and manufacturing of the sensors can be met.
Description
Technical field
The present invention relates to automobile sensor detection field, particularly relate to a kind of Apparatus and method for automobile crane position transducer, anti-lock braking system (ABS:Anti-lock Braking System) sensor, CMPS Camshaft Position Sensor and vehicle speed sensor performance being carried out to comprehensive detection.
Background technology
Along with the development of Domestic Automotive Industry, the application of automobile sensor is more and more extensive, wherein crankshaft position sensor, CMPS Camshaft Position Sensor, vehicle speed sensor and abs sensor are one of sensors very crucial in automobile engine control system, automobile safety system, and it decides duty and performance, the automobile braking safety of engine.Crankshaft position sensor is also called engine speed and CKP, and it is for collecting crankshaft rotational angle and engine rotational speed signal, and inputs electronic control unit (ECU), to determine time of ignition and oil injection time.CMPS Camshaft Position Sensor is also called cylinder identification sensor, and it for gathering the position signalling of distribution cam axle, and inputs ECU, so that ECU identifies cylinder compression top dead centre, thus carries out sequential fuel injection control, time of ignition control and detonation control.In addition, camshaft-position signal is also for identifying first time time of ignition during engine start.Vehicle speed sensor is for detecting the speed of a motor vehicle of electronic automobile, and this input signal of ECU controls engine idle, the torque converter locking of automatic transmission, the opening and closing of automatic gearbox gear shifting and cooling fan of engine and other functions such as constant speed of cruising.Abs sensor is the ABS being applied in motor vehicle, abs sensor by with the gear ring effect with wheel synchronous axial system, export one group of quasi-sinusoidal AC electric signal, its frequency is relevant with wheel speed with amplitude, and this output signal passes toward ABS electronic control unit, to realize the real-time monitoring to wheel speed, prevent wheel locking, automobile still can be turned under on-position, ensure the brake direction steady of automobile, prevent to break away and sideslip.
At present, automotive sensor technology is mainly grasped by the state such as American-European, Japanese and is carried out blockade on new techniques to China.Although obtained very large development in recent years domestic, be subject to the impact of product design technology and detection technique, dosimetric sensors is also in low side level, needs further to improve and development.Detect with regard to sensor, the detection of this several sensor domestic also rests on more elementary level, it mainly adopts oscillograph and simple test fixture to carry out Product checking, the drawback that this also exists can not carry out comprehensive and systematic detection to the output performance of product, partial properties cannot detect, not only detect inconvenience, efficiency is low, simultaneously testing result affect greatly by operator's subjective factor, product poor controllability, product stability and reliability can not be guaranteed.
Summary of the invention
An object of the present invention is, a kind of automobile sensor checkout equipment is provided, it can carry out comprehensive automation detection to the performance of crankshaft position sensor, abs sensor, CMPS Camshaft Position Sensor and vehicle speed sensor, has the function of complete detection sensor performance;
Another object of the present invention is to, a kind of method utilizing automobile sensor checkout equipment detecting sensor performance is provided, can automatic detection sensor performance comprehensively, not only precision is high, good stability, efficiency are high, easy to operate, and not by the subjective impact of operator.
For achieving the above object, the invention provides a kind of automobile sensor checkout equipment, comprise: working plate, it also comprises and is installed on working plate Shang Shuo road kinematic train, clamping workpiece mechanism, detects air gap and regulate and testing agency, signal system, the control system be located in working plate, data acquisition system (DAS) and Signal Analysis System; Include signal wheel and probe power in described signal system, in data acquisition system (DAS), include capture card and current sensor; Control system is used for carrying out action control to test process, during test, sensor to be measured is installed on working plate by clamping workpiece mechanism, probe power is this sensor power to be measured, and this sensor to be measured is crankshaft position sensor, abs sensor, CMPS Camshaft Position Sensor or vehicle speed sensor; By detect air gap and regulate and testing agency detect and adjust sensor to be measured and signal take turns between mounting distance, while kinematic train drives signal wheel to rotate, sensors generate signals to be measured exports, capture card gathers the signal of the output of this signal and current sensor, and is sent to Signal Analysis System analysis.
Wherein, the shaft coupling including bearing seat, transmission shaft, motor and be installed between bearing seat and motor in the kinematic train of described several roads, described signal wheel is installed on transmission shaft, and this signal wheel is by signal wheel fast assembly and disassembly mechanism and the dismounting of transmission shaft phase.
Clamping workpiece mechanism of the present invention includes sensor installation seat, be located at replaceable clamping workpiece frock on sensor installation seat and compression cylinder.
Described detection air gap regulates and includes in testing agency gap measurement sensor and takes turns the milscale with sensor distance to be measured in order to conditioning signal, and this gap measurement sensor is a distance detection laser.
Control system of the present invention is a PLC control system or single-chip computer control system, this PLC control system or single-chip computer control system respectively with kinematic train, detect air gap and regulate and electrically contact with testing agency and Signal Analysis System.
The present invention also comprises a sensor signal connecting interface, and this sensor signal connecting interface side and sensor to be measured are electrically connected, and opposite side is electrically connected with probe power and data acquisition system (DAS) respectively.
In the present invention, in described Signal Analysis System, including host computer, in this host computer, storing the respective algorithms for analyzing crankshaft position sensor, abs sensor, CMPS Camshaft Position Sensor and vehicle speed sensor output signal feature.
Further, the present invention also provides a kind of method utilizing automobile sensor checkout equipment detecting sensor performance, and it comprises the steps:
Be installed on automobile sensor checkout equipment by sensor to be measured by clamping workpiece mechanism, start test, this sensor to be measured is crankshaft position sensor, abs sensor, CMPS Camshaft Position Sensor or vehicle speed sensor;
Select the sensor type to be measured of current test, parameters, start to test this sensor to be measured;
The rotating speed of control system to motor controls, and after motor speed is stable, Signal Analysis System reads the signal of capture card;
Signal Analysis System carries out data processing to signal, and automatically preserves test result;
Judge whether to proceed test, if so, then carry out next round test; If not, then log off.
Wherein, the step of described parameters comprises: judge whether to revise parameter, if not, then directly start to test this sensor to be measured; If so, then carry out parameter modification, deletion and preserve operation, then starting to test this sensor to be measured; In parameter modification operation, according to different sensor types, arrange test judgement condition, after selection is preserved, open program next time, under the condition not changing sensor type selection, test is later same decision condition.
In the present invention, described Signal Analysis System reads in the signals step of capture card, the capture card signal read comprises current signal and the output voltage signal of current sensor to be measured, Signal Analysis System carries out data processing to this output voltage signal, and this data processing comprises phase place judgement, peak-to-peak value, high level, low level, rise time, fall time, electric conduction angle, signal symmetry degree and curve display.
Automobile sensor checkout equipment of the present invention and utilize the method for its detecting sensor performance, it can to crankshaft position sensor, abs sensor, CMPS Camshaft Position Sensor, and the performance of vehicle speed sensor carries out comprehensive automation detection, realize high precision, the all round properties to sensor of high stability detects automatically and data store, Optimal Control to sensor performance in meeting sensor exploitation and manufacturing, not only precision is high, good stability, efficiency is high, easy to operate, and not by the subjective impact of operator, product controllability is high, can effectively ensure product stability and reliability.
Accompanying drawing explanation
Fig. 1 is the external structure schematic diagram of automobile sensor checkout equipment one specific embodiment of the present invention;
Fig. 2 is the internal module schematic diagram of automobile sensor checkout equipment one specific embodiment of invention;
Fig. 3 be a kind of specific embodiment of the present invention in the application with the mounting structure schematic diagram of sensor to be measured;
Fig. 4 is the side structure schematic diagram of Tu3Zhong clamping workpiece mechanism;
Fig. 5 is the mounting structure schematic diagram of another specific embodiment of clamping workpiece mechanism and sensor to be measured in the present invention;
Fig. 6 is the left side schematic diagram of Fig. 5;
Fig. 7 is the method flow diagram that the present invention utilizes automobile sensor checkout equipment detecting sensor performance;
Fig. 8 is the schematic flow sheet that the present invention utilizes a kind of specific embodiment of method of automobile sensor checkout equipment detecting sensor performance.
Embodiment
As Figure 1-4, the invention provides a kind of automobile sensor checkout equipment, it comprises: working plate 10, also comprises and is installed on working plate 10 Shang Shuo road kinematic train 11, clamping workpiece mechanism 12, the adjustment of detection air gap and testing agency, signal system, control system 30, data acquisition system (DAS) and the Signal Analysis System be located in working plate 10.Wherein, include signal wheel 13 and probe power 14 in described signal system, in described data acquisition system (DAS), include capture card 32 and current sensor 34.
In the present invention, the shaft coupling 118 including bearing seat 112, transmission shaft 114, motor 116 and be installed between bearing seat 112 and motor 116 in described several roads kinematic train 11.Wherein, motor 116 can adopt servomotor or other motor.As a kind of selectivity embodiment of the present invention, a road kinematic train 11 can be set; As a preferred embodiment of the present invention, two-way kinematic train 11 can also be set, can realize like this, simultaneously to the test of two sensors, improving testing efficiency greatly.
In the specific embodiment of the invention, clamping workpiece mechanism 12 includes sensor installation seat 122, be located at replaceable clamping workpiece frock 124 on sensor installation seat 122 and compression cylinder 126.Dissimilar sensor to be measured 20 is fixedly installed on sensor installation seat 122 by this replaceable clamping workpiece frock 124 and compression cylinder 126, thus is installed on automobile sensor checkout equipment of the present invention.Automobile sensor checkout equipment of the present invention goes for the detection of crankshaft position sensor, abs sensor, CMPS Camshaft Position Sensor and vehicle speed sensor, and dissimilar sensor to be measured 20 needs to change corresponding replaceable clamping workpiece frock 124 and can install with sensor installation seat 122 phase.As a kind of specific embodiment of the present invention, described crankshaft position sensor and CMPS Camshaft Position Sensor can share same clamping workpiece mechanism 12 and clamp.As another kind of specific embodiment of the present invention, as shown in Figure 5,6, described sensor 20 ' to be measured is fixedly mounted by compression cylinder 126 ' and sensor installation seat 122 ', and this sensor 20 ' to be measured is vehicle speed sensor.
Especially, the present invention is also provided with the detection air gap of taking turns gap between 13 for detecting sensor 20 to be measured and signal and regulates and testing agency.As a kind of specific embodiment of the present invention, described detection air gap regulates and includes in testing agency gap measurement sensor 132 and takes turns the milscale 134 of 13 and sensor 20 distance to be measured in order to conditioning signal.This gap measurement sensor 132 can be a distance detection laser, and it can detect sensor 20 to be measured and signal accurately and take turns air gap between 13, thus passes through milscale 134 initial adjustment sensor 20 to be measured and signal and take turns distance between 13.This detection air gap regulates the setting with testing agency, can ensure conveniently, carry out accurately testing the setting in gap, can be good at controlling Detection job.
Signal of the present invention wheel 13 is installed on transmission shaft 114, regulates and to carry out signal by detecting air gap with testing agency and take turns 13 connect and realize high concentricity precision.This signal wheel 13 is rotated by the drive of kinematic train 11, and probe power 14 is powered to sensor 20 to be measured, and this sensor 20 to be measured can produce signal and export in the motion of signal wheel 13.As a preferred embodiment of the present invention, this signal wheel 13 can by signal wheel fast assembly and disassembly mechanism 136 and the dismounting of transmission shaft 114 phase, by this signal wheel fast assembly and disassembly mechanism 136, fast assembling-disassembling can be carried out to signal wheel 13 easily, improve detection efficiency.
Control system 30 of the present invention can be a PLC control system, and this PLC control system is used for carrying out action control to test process.In the present invention, this PLC control system respectively with kinematic train, detect air gap and regulate and electrically contact with testing agency and Signal Analysis System.As another kind of specific embodiment of the present invention, this this control system 30 can also adopt single-chip computer control system, this single-chip computer control system respectively with kinematic train, detect air gap and regulate and electrically contact with testing agency and Signal Analysis System.
As a kind of specific embodiment of the present invention, including host computer 40 in described Signal Analysis System, in this host computer, storing the respective algorithms for analyzing crankshaft position sensor, abs sensor, CMPS Camshaft Position Sensor and vehicle speed sensor output signal feature.The data of collection are returned to host computer 40 by control system 30, and host computer 40 arranges the rotating speed of motor 116 by control system 30.In addition, this host computer 40 can also read the signal of capture card 32 and arrange the parameter of capture card 32.As a preferred embodiment of the present invention, this automobile sensor checkout equipment can adopt man-machine interface, and this man-machine interface is made up of action button, pilot lamp, digital display meter and display (not shown).Structural design of the present invention, completely from human engineering, has good operability, can reduce the work fatigue degree of operator to greatest extent, enhances productivity and ensure the quality of production.Meanwhile, the man-machine interface of its close friend, succinctly, accurately can arrange test parameter according to dissimilar sensor to be measured, and test data be returned accurately to operating personnel in real time, makes whole test process more accurately directly perceived.
In addition, sensor signal connecting interface (not shown) is also provided with in this automobile sensor checkout equipment, this sensor signal connecting interface side and sensor to be measured 20 are electrically connected, and opposite side is electrically connected with probe power 14 and data acquisition system (DAS) respectively.As a kind of selectivity embodiment of invention, can also storer and mini-printer (not shown) be set in this automobile sensor checkout equipment, make automobile sensor checkout equipment of the present invention have data storage function and testing result printing function.
Automobile sensor checkout equipment of the present invention, it can detect the technical indicator whether meeting product with the voltage output value of automatic decision crankshaft position sensor, abs sensor, CMPS Camshaft Position Sensor and vehicle speed sensor and working current; Whether it can also detect with the installation of automatic decision crankshaft position sensor and vehicle speed sensor inner member correct, and the phase place of crankshaft position sensor is detected and automatic decision, the technical indicator whether meeting product with the frequency of automatic decision abs sensor can be detected, the technical indicator whether meeting product with the response time of automatic decision CMPS Camshaft Position Sensor and vehicle speed sensor can also be detected.In the present invention, electric current is the project that each sensor to be measured must detect, and it is by a current sensor 34 of connecting in test loop, is then gathered by capture card 32 that the signal of current sensor 34 obtains.These technical indicators such as voltage output, response time, phase place and frequency are all that capture card 32 is gathered the signal of sensor 20 to be measured and drawn by corresponding algorithm, all can customize according to the real needs of client the process of signal, client wants which feature understanding signal, and it is just passable that Signal Analysis System provides the corresponding algorithm of these signal characteristics.
When automobile sensor checkout equipment of the present invention uses, sensor 20 to be measured is installed on by clamping workpiece mechanism 12 in the test bit of working plate 10, probe power 14 is powered for this sensor 20 to be measured, and this sensor 20 to be measured can be crankshaft position sensor, abs sensor, CMPS Camshaft Position Sensor or vehicle speed sensor.By detecting air gap and regulate and testing agency detecting and adjusts sensor 20 to be measured and signal and takes turns mounting distance between 13, while kinematic train 11 drives signal to take turns 13 rotations, sensor 20 to be measured produces signal and exports, capture card 32 gathers the signal of the output of this signal and current sensor 14, and be sent to Signal Analysis System analysis, thus the over-all properties of sensor 20 to be measured is tested accurately, and test data is preserved, whether qualified according to the performance of test result automatic decision sensor.
Further, as shown in Figure 7, the present invention also provides a kind of method utilizing automobile sensor checkout equipment detecting sensor performance, and it comprises the steps:
Step 1, be installed on automobile sensor checkout equipment by sensor to be measured by clamping workpiece mechanism, start test, this sensor to be measured is crankshaft position sensor, abs sensor, CMPS Camshaft Position Sensor or vehicle speed sensor.
Step 2, select the sensor type to be measured of current test, parameters, starts to test this sensor to be measured.Parameters is the condition arranging detection, and as a kind of specific embodiment of the present invention, as shown in Figure 8, the step of this parameters also comprises: judge whether to revise parameter, if not, then directly start to test this sensor to be measured; If so, then carry out parameter modification, deletion and preserve operation, then starting to test this sensor to be measured.In parameter modification operation, according to different sensor types, arrange test judgement condition, after selection is preserved, open program next time, under the condition not changing sensor type selection, test is later same decision condition.Because automobile sensor checkout equipment of the present invention can arrange repeatedly identical and different rotating speeds and correspondence thereof test condition simultaneously, after preservation, when not changing amendment, each test of acquiescence is all undertaken by current parameter, when only needing a rotating speed once to test, then need to delete unwanted rotating speed under optimum configurations.
Step 3, the control system rotating speed to motor controls, and after motor speed is stable, Signal Analysis System reads the signal of capture card.Wherein, motor can adopt servomotor or other motor, and described control system can be PLC control system or single-chip computer control system.In the present invention, described Signal Analysis System reads in the signals step of capture card, and the capture card signal of reading comprises current signal and the output voltage signal of current sensor to be measured.Current signal only needs to show, Signal Analysis System carries out data processing to this output voltage signal, and this data processing comprises phase place judgement, peak-to-peak value, high level, low level, rise time, fall time, electric conduction angle, signal symmetry degree and curve display.
Step 4, Signal Analysis System carry out data processing to signal, and automatically preserve test result.As a kind of selectivity embodiment of the present invention, can also print to facilitate paper to consult to this test result.
Step 5, judge whether to proceed test, if so, then carry out next round test; If not, then log off.As a kind of specific embodiment of the present invention, before judging whether to proceed test, also comprise the judgement of whether preserving curve data, judge whether again to proceed test after if so, then curve data being preserved; If not, then directly judge whether to start next round test.Further, when proceeding next round test, first needing to select test whether consistent with last condition, if unanimously, then directly entering the step starting to test this sensor to be measured; If inconsistent, then enter the step of the sensor type to be measured selecting current test.
In sum, automobile sensor checkout equipment of the present invention and utilize the method for its detecting sensor performance, it can to crankshaft position sensor, abs sensor, CMPS Camshaft Position Sensor, and the performance of vehicle speed sensor carries out comprehensive automation detection, realize high precision, the all round properties to sensor of high stability detects automatically and data store, Optimal Control to sensor performance in meeting sensor exploitation and manufacturing, not only precision is high, good stability, efficiency is high, easy to operate, and not by the subjective impact of operator, product controllability is high, can effectively ensure product stability and reliability.
The above; for the person of ordinary skill of the art; can make other various corresponding change and distortion according to technical scheme of the present invention and technical conceive, and all these change and be out of shape the protection domain that all should belong to the accompanying claim of the present invention.
Claims (8)
1. an automobile sensor checkout equipment, comprise working plate, it is characterized in that, also comprise and be installed on working plate Shang Shuo road kinematic train, clamping workpiece mechanism, the adjustment of detection air gap and testing agency, signal system, the control system be located in working plate, data acquisition system (DAS) and Signal Analysis System; Include signal wheel and probe power in described signal system, in data acquisition system (DAS), include capture card and current sensor; Described detection air gap regulates and includes in testing agency gap measurement sensor and takes turns the milscale with sensor distance to be measured in order to conditioning signal, and this gap measurement sensor is a distance detection laser; Control system is used for carrying out action control to test process, during test, one sensor to be measured is installed on working plate by clamping workpiece mechanism, probe power is this sensor power to be measured, and this sensor to be measured is crankshaft position sensor, abs sensor, CMPS Camshaft Position Sensor or vehicle speed sensor; By detect air gap and regulate and testing agency detect and adjust sensor to be measured and signal take turns between mounting distance, while number road kinematic train drives signal wheel to rotate, sensors generate signals to be measured exports, capture card gathers the signal of the output of this signal and current sensor, and is sent to Signal Analysis System analysis.
2. automobile sensor checkout equipment as claimed in claim 1, it is characterized in that, the shaft coupling including bearing seat, transmission shaft, servomotor and be installed between bearing seat and servomotor in the kinematic train of described several roads, described signal wheel is installed on transmission shaft, and this signal wheel is by signal wheel fast assembly and disassembly mechanism and the dismounting of transmission shaft phase.
3. automobile sensor checkout equipment as claimed in claim 1, is characterized in that, described clamping workpiece mechanism includes sensor installation seat, be located at replaceable clamping workpiece frock on sensor installation seat and compression cylinder.
4. automobile sensor checkout equipment as claimed in claim 1, it is characterized in that, described control system is a PLC control system, this PLC control system respectively with several roads kinematic train, detects air gap and to regulate and testing agency and Signal Analysis System electrically contact.
5. automobile sensor checkout equipment as claimed in claim 1, it is characterized in that, also comprise a sensor signal connecting interface, this sensor signal connecting interface side and sensor to be measured are electrically connected, and opposite side is electrically connected with probe power and data acquisition system (DAS) respectively.
6. automobile sensor checkout equipment as claimed in claim 1, it is characterized in that, including host computer in described Signal Analysis System, in this host computer, storing the respective algorithms for analyzing crankshaft position sensor, abs sensor, CMPS Camshaft Position Sensor and vehicle speed sensor output signal feature.
7. utilize a method for automobile sensor checkout equipment detecting sensor performance in claim 1, it is characterized in that, comprise the steps:
Be installed on automobile sensor checkout equipment by sensor to be measured by clamping workpiece mechanism, start test, this sensor to be measured is crankshaft position sensor, abs sensor, CMPS Camshaft Position Sensor or vehicle speed sensor;
Select the sensor type to be measured of current test, parameters, start to test this sensor to be measured;
The step of described parameters comprises: judge whether to revise parameter, if not, then directly start to test this sensor to be measured; If so, then carry out parameter modification, deletion and preserve operation, then starting to test this sensor to be measured; In parameter modification operation, according to different sensor types, arrange test judgement condition, after selection is preserved, open program next time, under the condition not changing sensor type selection, test is later same decision condition;
The rotating speed of PLC control system to servomotor controls, and after servomotor stabilization of speed, Signal Analysis System reads the signal of capture card;
Signal Analysis System carries out data processing to signal, and automatically preserves test result;
Judge whether to proceed test, if so, then carry out next round test; If not, then log off.
8. utilize the method for automobile sensor checkout equipment detecting sensor performance as claimed in claim 7, it is characterized in that, described Signal Analysis System reads in the signals step of capture card, the capture card signal read comprises current signal and the output voltage signal of current sensor to be measured, Signal Analysis System carries out data processing to this output voltage signal, and this data processing comprises phase place judgement, peak-to-peak value, high level, low level, rise time, fall time, electric conduction angle, signal symmetry degree and curve display.
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| CN103954801A (en) * | 2014-05-19 | 2014-07-30 | 无锡隆盛科技股份有限公司 | Measuring device of rotating speed sensor |
| CN104006782B (en) * | 2014-06-12 | 2017-02-15 | 北京华电天仁电力控制技术有限公司 | Dynamic detection device for position sensor sensing section |
| CN104614005B (en) * | 2015-02-16 | 2016-11-02 | 爱德森（厦门）电子有限公司 | A kind of device and method detecting electromagnetic sensor response time and resolution ratio |
| CN105043432B (en) * | 2015-08-18 | 2017-06-20 | 安徽日正新源电气技术有限公司 | Camshaft phase sensor detection method |
| CN105277743A (en) * | 2015-11-13 | 2016-01-27 | 桂林电子科技大学 | Pulse type engine rotating speed measuring instrument full-automatic detection device and method |
| CN106896240A (en) * | 2015-12-17 | 2017-06-27 | 大陆汽车电子(长春)有限公司 | A kind of automotive speed sensor test experimental bed and its method of testing |
| CN106066408B (en) * | 2016-05-24 | 2018-10-19 | 淮海工学院 | The three level wheel speed sensors based on brake process test System and method for |
| CN107782998A (en) * | 2017-11-27 | 2018-03-09 | 重庆长安汽车股份有限公司 | A kind of experimental rig and test method of ECU identifications magneto electric type crankshaft position sensor signal |
| CN108871407A (en) * | 2018-07-26 | 2018-11-23 | 广州市昊志机电股份有限公司 | A kind of coder testing device |
| CN109374035A (en) * | 2018-12-05 | 2019-02-22 | 贝兹维仪器(苏州)有限公司 | A kind of sensor detector with vibration rotation function |
| CN112710870B (en) * | 2020-12-21 | 2022-07-08 | 成都成发泰达航空科技有限公司 | Performance detection device for APU (auxiliary Power Unit) speed sensor |
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| CN201266100Y (en) * | 2008-04-30 | 2009-07-01 | 北京中科泛华测控技术有限公司 | Vehicle sensor test system |
| CN201340430Y (en) * | 2008-12-09 | 2009-11-04 | 宁波思创机电有限公司 | System for detecting comprehensive performance of wheel speed sensor |
| CN101806240B (en) * | 2010-03-15 | 2011-12-28 | 清华大学 | Combustion phase detection device for homogeneous charge compression ignition engine and detecting method thereof |
| CN201764986U (en) * | 2010-08-16 | 2011-03-16 | 北京中科泛华测控技术有限公司 | Automobile sensor testing module |
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| C06 | Publication | ||
| PB01 | Publication | ||
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