CN104062130A - Testing system and method for vehicle handling stability - Google Patents
Testing system and method for vehicle handling stability Download PDFInfo
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- CN104062130A CN104062130A CN201410317312.5A CN201410317312A CN104062130A CN 104062130 A CN104062130 A CN 104062130A CN 201410317312 A CN201410317312 A CN 201410317312A CN 104062130 A CN104062130 A CN 104062130A
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Abstract
The invention discloses a testing system and method for vehicle handling stability. The testing system comprises a testing assembly, a data collector and a data processor. The testing assembly transmits detection data to the data collector, and the data collector is connected with the data processor. The testing assembly comprises a speed sensor, a height sensor, a pedal force sensor, a force measurement steering wheel and a testing unit, wherein the speed sensor, the height sensor, the pedal force sensor and the force measurement steering wheel are respectively in signal connection with the data collector, and the testing unit is used for testing the inertia of a vehicle. The data processor is connected with a vehicle-mounted displayer. The data collector, a digital-analog conversion chip and the data processor are connected with a distributing box. The testing system and method have the advantages that the mechanical structure of the vehicle does not need changing, the normal operation of the vehicle is not affected, and the real-time dynamic measurement of the vehicle handling stability is achieved; the testing system and method are not only applicable to small vehicles but also applicable to various semi-trailer or full-trailer trucks; besides, the driving stability of the vehicle during high-speed large steering can be accurately tested through the testing system and method, and the possibility of losing stability for the vehicle is effectively lowered.
Description
Technical field
The present invention relates to Automobile Measuring Techniques field, in particular to a kind of vehicle handling stability test macro and method.
Background technology
Along with the development of Hyundai Motor technology, more and more higher to vehicle dynamic quality and the requirement of operation stabilization performance, economy is also an important technology index of automobile simultaneously.
In order to detect the riding stability of automobile, the test of control stability while all needing to carry out automobile along straight-line travelling before each vehicle test, to determine whether automobile meets requirement of experiment, if the deviation phenomenon of automobile during along straight-line travelling is serious, can affect the accuracy of the data of experiment, and at automobile, going out producer also needs automobile to carry out straight motion stability test, avoiding the serious automobile of sideslip to come into the market affects people's safety, so the test of automobile straight-line travelling control stability is very important.Vehicle handling stability is to refer to that driver does not feel under the condition of overstrain, fatigue, automobile can be followed driver by steering system and the given direction running of steered wheel, and when meeting with external interference, automobile can be resisted the ability of disturbing and keeping stability to travel, control stability test evaluation system is mainly used in the response of testing vehicle equipment to operator's input, and the control stability of automobile is carried out to thoroughly evaluating.
Semi-trailer train for example, it is high that it has conevying efficiency, ton kilometre oil consumption is low, can realize the advantages such as door-to-door service, at home, formation along with development and the freeway net of logistics, semi-trailer train also becomes the main force of transport by road day by day, semi-trailer train is compared with monomer load-carrying vehicle, the additional degree of freedom that exists the coupling of tractor and semitrailer to bring due to semi-trailer train, its lateral stiffness a little less than, more easily occur that horizontal unstability is (folding, whipping, side shake, rollover) phenomenon, and semi-trailer train charging capacity is large, volume is large, the speed of a motor vehicle is high, inertia is large, once so there is unstability situation, be easy to feed through to other vehicle travelling on road, cause the pernicious traffic hazard of the serious chain of rings, safety of life and property impact on people is very large, have a strong impact on traffic transportation efficiency, even can cause huge economic loss and casualties, therefore, for being similar to semi-trailer train, the control stability test of automobile is particularly important.
At present, although the equipment of the vehicle handling stability of existing this class test on market, but it is expensive, belong to specialized equipment, and poor compatibility, there is the shortcomings such as volume is large, price is high, installation is inconvenient, affect its market popularization and practicality, in addition for semi-mounted or full trailer train, the system of also not testing for the control stability of this type of train special use at present, therefore,, for the sector, be badly in need of a kind ofly can testing the vehicle handling stability test macro that kart or car load can be tested again semi-mounted or full trailer train.
Summary of the invention
For expensive, the poor compatibility that solves that existing vehicle handling stability test macro exists, the defect such as volume is large, price is high, installation is inconvenient, the object of the present invention is to provide a kind of vehicle handling stability test macro and method.
For achieving the above object, a kind of vehicle handling stability test macro is provided in the embodiment of the present invention, has comprised detection components, data acquisition unit and data processor, detection components is passed to data acquisition unit by detection data, data acquisition unit is connected with data processor, wherein:
Detection components comprises the speed pickup that is connected with data acquisition unit signal respectively, height sensor, pedal force sensor, load steering wheel and for detection of the test cell of automobile inertial;
Data processor connects Vehicular display device;
Data acquisition unit, analog-digital chip and data processor connect block terminal.
The present invention is simple in structure, easy to operate, speed pickup, height sensor, pedal force sensor, load steering wheel and test cell by detection components respectively to the speed of automobile, highly, the vehicle data such as pedal force performance, bearing circle performance and inertia properties detects, and the vehicle data of detection is passed to data acquisition unit, data acquisition unit is passed to data processor by the vehicle data of collection, and data processor will detect and judge the vehicle data detecting.Data after data processor processes will transfer to Vehicular display device, will obtain vehicle handling stability energy stable state and transient response characteristic curve on Vehicular display device, more directly perceived, convenient test, and Vehicular display device is fixed on copilot front windshield with sucker.Data acquisition unit in test macro, detection components and data processor etc. all need independent power supply; the invention provides the block terminal of the multiple-way supply of safety protection function; can be simultaneously for data acquisition unit, detection components, data processor simultaneously; improved the reliability of the normal work of test macro; convenient operation, practical more.
Further, test cell comprises the gyroscope that is arranged on vehicle centroid position, and gyroscope is connected with data acquisition unit.In the technical program, gyroscope is fixed on the centroid position of tested vehicle by fixture, gyroscope is for detection of three angles of three directions (three-dimensional) of vehicle, three angular velocity, and the inertial parameter such as three acceleration, and inertial parameter is passed to data acquisition unit, during concrete use, kart or whole Che Shijun are arranged on gyroscope the centroid position of vehicle, be only applicable to like this gyroscope and just can complete angle, acceleration, the measurement of angle, if semi-mounted or full-trailer vehicle, gyroscope is fixed on to the centroid position of first segment car body, four height sensors be arranged on second section car body before, after, left, place, right four angles, as shown in Figure 2, gyroscope is for testing the inertial parameter of first segment car body, four height sensors are for testing the inertial parameter of second section car body, gyroscope and height sensor are used in conjunction with, and inertial parameter is passed to data acquisition unit processes respectively, select parameter larger in wherein gyroscope and height sensor as test result, this structural design has solved existing product and only with the inertial parameter of first segment car body, as the test of semi-mounted or full-trailer vehicle control stability, has caused the test result not comprehensive, the defect such as inaccurate, the present invention is practical.
Further load steering wheel, gyroscope and height sensor all connect the secondary instrument that is mated use, and load steering wheel, gyroscope and height sensor are all connected with data acquisition unit by secondary instrument.
Further, the GPS sensor for detection of traval trace is installed in data acquisition unit.In the technical program, data acquisition unit is in to data acquisition, and GPS sensor detects and record vehicle driving trace, and during installation, GPS is positioned at data acquisition unit, and its antenna is placed on tested vehicle top outer, is convenient to receiving satellite signal.
Further, detection components also comprises that acceleration transducer is all connected with data acquisition unit with sonic transducer for detection of the acceleration transducer of automobile steering roller vibration acceleration signal with for detection of the sonic transducer of motor car engine noise signal.In the technical program, acceleration transducer is for detecting automobile steering roller vibration acceleration signal in steering reversal performance test or ease of steering test, easy to use, simple to operate; When sonic transducer is for detection of running car in addition, engine noise signal, practical.
Further, this test macro also comprises and being arranged on seat back and for the camera of live video, camera is connected with Vehicular display device.In the technical program, further can be on the backrest of automotive seat fixing camera, and use the camera registration of vehicle scene of travelling, increased the multifunctionality of this system testing.
The present invention also provides a kind of vehicle handling stability method of testing, comprises the steps:
S1 driver responds to tested vehicle, and tested vehicle carries out experimental test;
S2 detection components detects the vehicle data of tested vehicle in experimental test in real time, and by vehicle data transmission to data acquisition unit;
S3 data acquisition unit is passed to data processor by the vehicle data after gathering, and the stability of vehicle processed and judge by data processor to vehicle data, the vehicle data of detection is passed to Vehicular display device simultaneously.
Method of testing provided by the present invention is simple to operate, easy to use, physical construction without improving existing vehicle, detects by this method, and degree of accuracy is high, realized the real time dynamic measurement of intact stability, this test macro is not only applicable to dilly, and is applicable to various semitrailer truck combinations, has improved the riding stability of semi-trailer train when turning to greatly at a high speed, can effectively reduce failure probability, avoid the generation of severe traffic accidents.
Further, experimental test is at least a kind of in transient response test/steering reversal performance test/ease of steering test/steady state cornering test of snakelike test/turn to.In the technical program by above-mentioned test, performance during to vehicle operating is tested, automobile is when detecting, need to complete above-mentioned at least one test, by above-mentioned test, by inductor or test platform, obtain corresponding vehicle data, turn to transient response test to comprise Steering Wheel Angle Step input and steering wheel angle pulse input.
In the technical program, handling and stability experiment test, theoretical property is strong, with high content of technology, simple to operate, easy to use.When practical operation is used, there are following three distinguishing features: by existing common device, complete the detection of different vehicle datas; Test event and the test number (TN) of the each test of this stability test method are many in addition, and test accurately, will be surveyed 10 times as snakelike test comprehensively, and every test also comprises the evaluation index that each is little, more than totally 30 test parameter and 13 evaluatings; By data processor, data are processed in addition, easy to use, simple to operate, test will complete 30 multinomial data processings, and test comprehensively, accurately.
Further, vehicle data is at least a kind of in following data parameters:
Speed: vehicle pace/forward acceleration;
Highly: car body is with respect to the height change on ground;
Pedal force performance: coordinate vehicle speed measurement pedal force performance;
Bearing circle performance: measure steering wheel steering moment/steering wheel steering angle/steering wheel steering angle speed;
Inertia properties: the deviation angle/acceleration/angular velocity of measuring vehicle horizontal direction, vertical direction;
Sound: engine noise signal;
Displacement: vehicle driving trace.
In the technical program, the present invention can complete car speed, highly, column plate power performance, bearing circle performance, inertia properties (three coordinates of centroid position), sound, displacement etc., accomplish vehicle test in all directions, test accurately, that has improved vehicle the stability while travelling such as travels, turns, accelerates, slides, can effectively reduce vehicle failure probability, avoid the generation of severe traffic accidents, practical.
Beneficial effect of the present invention is: test accuracy of the present invention is high, practical, install simple, avoided changing the physical construction of vehicle, do not affect the normal operation of automobile, realized the real time dynamic measurement of intact stability, this test macro is not only applicable to dilly, and be applicable to various semitrailer truck combinations, by this control stability test macro, can accurately test the riding stability of semi-trailer train when turning to greatly at a high speed, effectively reduce failure probability, avoid the generation of severe traffic accidents, test accurately, by display, can directly observe test structure, practical, experiment work amount and the testing cost of these parameter testings are reduced greatly, saved staff's working time.
Accompanying drawing explanation
Fig. 1 is the structural drawing of a kind of vehicle handling stability test macro described in the embodiment of the present invention;
Fig. 2 is the scheme of installation of a kind of vehicle handling stability test macro described in the embodiment of the present invention;
Fig. 3 is the operational flowchart of a kind of vehicle handling stability method of testing described in the embodiment of the present invention.
In figure,
1, detection components; 2, data acquisition unit; 3, block terminal; 4, data processor; 5, speed pickup; 6, height sensor; 7, pedal force sensor; 8, load steering wheel; 9, test cell; 10, Vehicular display device; 11, camera.
Embodiment
Below by specific embodiment, also by reference to the accompanying drawings the present invention is described in further detail.
As shown in Figure 1-2, a kind of vehicle handling stability test macro described in the embodiment of the present invention, comprises detection components 1, data acquisition unit 2 and data processor 4, and detection components is passed to data acquisition unit by detection data, data acquisition unit is connected with data processor, wherein:
Detection components comprises the speed pickup 5 that is connected with data acquisition unit signal respectively, height sensor 6, pedal force sensor 7, load steering wheel 8 and for detection of the test cell 9 of automobile inertial;
Data processor connects Vehicular display device 10;
Data acquisition unit, analog-digital chip and data processor connect block terminal 3.
Vehicle handling stability test system structure is simple, easy to operate, speed pickup, height sensor, pedal force sensor, load steering wheel and test cell by detection components respectively to the speed of automobile, highly, the vehicle data such as pedal force performance, bearing circle performance and inertia properties detects, and the vehicle data of detection is passed to data acquisition unit, data acquisition unit is passed to data processor by the vehicle data of collection, and data processor will detect and judge the vehicle data detecting.Data processor utilizes known DEWESOft-self multi-purpose vehicle(MPV) test macro in the industry to test, no longer elaborate herein, by test macro provided by the invention, utilize this DEWESOft available vehicle handling stability energy stable state and transient response characteristic curve and be presented on Vehicular display device, more can be intuitively referring to test structure, easy to use simple to operate.
Data acquisition unit in test macro, detection components and data processor etc. all need independent power supply in addition; the invention provides the block terminal of the multiple-way supply of safety protection function; can be simultaneously for data acquisition unit, detection components, data processor simultaneously; improved the reliability of the normal work of test macro; convenient operation, practical more.
Further, test cell comprises the gyroscope that is arranged on vehicle centroid position, and gyroscope is connected with data acquisition unit.
As shown in Figure 2, during concrete use, the present invention is not only applicable to kart or car load, but also is applicable to the control stability test of semi-mounted or full trailor train, for kart or car load, only by gyroscope, test, gyroscope is arranged on to the centroid position of vehicle, so only by gyroscope, can completes the measurement of angle, acceleration, angular velocity, now for kart or car load, do not need to use height sensor, measure convenient, for semi-mounted or full trailer train, because the automobile storage of the type is at second section car body, the additional degree of freedom that the coupling of first segment car body and second section car body brings, its lateral stiffness a little less than, more easily occur that horizontal unstability is (folding, whipping, side shake, rollover) phenomenon, and semi-mounted or full trailer train charging capacity large, volume is large, the speed of a motor vehicle is high, inertia is large, so but once unstability situation occurs, be easy to feed through to other vehicles that travel on road, cause the pernicious traffic hazard of the serious chain of rings, safety of life and property impact for people is very large, have a strong impact on traffic transportation efficiency, therefore for semi-mounted or full trailer train, control stability that only cannot Measurement accuracy vehicle by gyroscope, therefore the present invention is by be used in conjunction with gyroscope and height sensor the drift angle of measuring simultaneously, the parameters such as angular velocity, during concrete installation, gyroscope is fixed on to the centroid position of the first segment car body of semi-mounted or full trailer train, then four height sensors are arranged on second section car body before, after, left, right place, four angles, during test, gyroscope is for testing the inertial parameter of first segment car body, four height sensors are for testing the inertial parameter of second section car body, gyroscope and height sensor are used in conjunction with, and inertial parameter is passed to data acquisition unit processes respectively, after DATA REASONING, select the larger parameter of measuring in gyroscope and height sensor as test result, use being used in conjunction with of gyroscope and height sensor, having solved existing product only uses the inertial parameter of gyroscope survey first segment car body as the test data of semi-mounted or full-trailer vehicle control stability, thereby cause test result not comprehensive, the defect such as inaccurate, the present invention measures accurately, accuracy is high, practical.Further, load steering wheel, gyroscope and height sensor all connect the secondary instrument that is mated use, and load steering wheel, gyroscope and height sensor are all connected with data acquisition unit by secondary instrument.
Further, the GPS sensor for detection of traval trace is installed in data acquisition unit.
Further, detection components also comprises that acceleration transducer is all connected with data acquisition unit with sonic transducer for detection of the acceleration transducer of automobile steering roller vibration acceleration signal with for detection of the sonic transducer of motor car engine noise signal.
Further, this test macro also comprises and being arranged on seat back and for the camera 11 of live video, camera is connected with Vehicular display device.Preferably, data processor is the cRIO-9074 in NI CompactRIO series.In the technical program, data processor and data acquisition unit are NI CompactRIO series, and this series hardware device is applicable to reliably independent embedded or distribution application system; Its various hot plug industry I/0 module, the built-in signal condition that can directly be connected with sensor/actuator, the demand that all meets most of vehicle handling stability tests, good antidetonation heat resistance has surmounted old-fashioned acquisition system, the reliability and security that has guaranteed test, the profile of this data processor and data acquisition unit is small and exquisite, is convenient to test, low in energy consumption in addition, the stability of system works strengthens.
Test macro provided by the invention can reach following effect:
(1) inertial measurement system adopts the information fusion algorithm based on EKF, utilize the attitude data of single-antenna GPS, and the angular velocity data that records of strap down inertial navigation test macro etc., acceleration of gravity of earth rotation, different regions etc. is carried out to real-time error compensation, make control stability test macro possessed high-precision attitude test performance and good drift and time float;
(2) test macro adopts the athletic posture of inertial measurement system testing vehicle barycenter, the side rake angle and the angle of pitch that coordinate the second section car body of laser elevation sensing system test semi-dragging truck row side, not only can be used for monoblock type vehicle mounting, also the handling and stability experiment that can be used for semi-trailer train, articulated vehicle, applicability is strong;
(3) this system integration Data Collective of Parameters device and multiple sensors, in the momental while of test, can test the signals such as deflecting roller vibration acceleration signal, engine noise signal and image, vehicle movement track, coordinate speed pickup and brake pedal force sensor, can also test braking ability, rideability, favorable expandability;
(4) test macro adopts the athletic posture of an inertial platform test carriage barycenter, for semi-trailer train, the present invention uses laser elevation sensor and stay wire displacement sensor test to hang and distortion is upheld in the compression of bridge axle, for furtheing investigate the control stability of vehicle, provides advanced research means.
As shown in Figure 3, the present invention also provides a kind of vehicle handling stability method of testing, comprises the steps:
S1 driver responds to tested vehicle, and tested vehicle carries out experimental test;
S2 detection components detects the vehicle data of tested vehicle in experimental test in real time, and by vehicle data transmission to data acquisition unit;
S3 data acquisition unit is passed to data processor by the vehicle data after gathering, and the stability of vehicle processed and judge by data processor to vehicle data, the vehicle data of detection is passed to Vehicular display device simultaneously.
Method of testing provided by the present invention is simple to operate, easy to use, physical construction without improving existing vehicle, detects by this method, and degree of accuracy is high, realized the real time dynamic measurement of intact stability, this test macro is not only applicable to dilly, and is applicable to various semitrailer truck combinations, has improved the riding stability of semi-trailer train when turning to greatly at a high speed, can effectively reduce failure probability, avoid the generation of severe traffic accidents.
Further, experimental test is at least a kind of in transient response test/steering reversal performance test/ease of steering test/steady state cornering test of snakelike test/turn to.
Further, vehicle data is at least a kind of in following data parameters:
Speed: vehicle pace/forward acceleration;
Highly: car body is with respect to the height change on ground;
Pedal force performance: coordinate vehicle speed measurement pedal force performance;
Bearing circle performance: measure steering wheel steering moment/steering wheel steering angle/steering wheel steering angle speed;
Inertia properties: the deviation angle/acceleration/angular velocity of measuring vehicle horizontal direction, vertical direction;
Sound: engine noise signal;
Displacement: vehicle driving trace.
For the speed of the vehicle data in technique scheme, when detecting, the pace of Negotiation speed sensor detected vehicle, forward acceleration, apart from parameters such as discrete times, practical.
For the height of the vehicle data in technique scheme, when detecting, by height sensor, measure driving vehicle with respect to the height change on ground, if during for detection of the control stability of semi-trailer train, can be used for height sensor and measure inclination and the luffing angle of trailer wagon box, during concrete use, height sensor has 4, be laser elevation sensor, for semi-trailer train, height sensor is arranged on respectively a left side for wagon box, before right both sides, rear two ends, gyroscope is fixed on to the centroid position in the pilothouse of semi-trailer train simultaneously, now sensor and gyroscope are all used in conjunction with, 4 height sensors are all connected with data acquisition unit, height sensor and gyroscope are used in conjunction with the attitude test of measuring driving vehicle, practical.
Pedal force performance for the vehicle data in technique scheme, pedal force sensor is fixed on foot brake pedal, when vehicle is when friction speed (the most at a high speed, accelerate, brake, slide), measure the performance test of pedal force, the Pkh2.0 sensor that the model of pedal force sensor is German HKM.
Bearing circle performance for the vehicle data in technique scheme, by being arranged on the load steering wheel on original bearing circle, steering wheel steering moment, steering wheel steering angle, the steering wheel steering angle speed of measuring vehicle in turning to transient response test or steering reversal performance test or ease of steering test or steady state cornering test, the model of load steering wheel is Japanese A Jing TR60-200 load steering wheel.
Inertia properties for the vehicle data in technique scheme, by being arranged on the gyroscope of the centroid position of tested vehicle, detect, be generally used for the inertial parameters such as three angles, three angular velocity and three acceleration of three directions (three-dimensional) that detect vehicle, and inertial parameter is passed to data acquisition unit.
For the sound of the vehicle data in technique scheme, by sonic transducer recording engine noise signal.
For the displacement of the vehicle data in technique scheme, by GPS sensor, the track of Vehicle Driving Cycle and displacement are detected, and judge whether vehicle completes driver's response.
In the world, because control stability test procedure has more than 20, there is the control stability method of testing of own inner enterprise in Ge great vehicle manufacturer, but ununified, effective, accurate test macro is for control stability test, is generally all according to the integrated test system that requires of oneself by user.General test for single-bicycle body of at present domestic test macro.But engineer equipment is owing to there being multiple special vehicle, particularly the vehicle such as hinged split type vehicle, semi-trailer train is more, in order to test the control stability of this vehicle, native system adopts gyroscope and sensor to be used in conjunction with simultaneously, completes test job.
Test accuracy of the present invention is high, practical, install simple, avoided changing the physical construction of vehicle, do not affect the normal operation of automobile, realized the real time dynamic measurement of intact stability, this test macro is not only applicable to dilly, and be applicable to various semitrailer truck combinations, improved the riding stability of semi-trailer train when turning to greatly at a high speed, can effectively reduce failure probability, avoid the generation of severe traffic accidents, test accurately, by display, can directly observe test structure, practical, experiment work amount and the testing cost of these parameter testings are reduced greatly, saved staff's working time.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a vehicle handling stability test macro, it is characterized in that: comprise detection components (1), data acquisition unit (2) and data processor (4), detection components is passed to data acquisition unit by detection data, and data acquisition unit is connected with data processor, wherein:
Detection components comprises the speed pickup (5) that is connected with data acquisition unit signal respectively, height sensor (6), pedal force sensor (7), load steering wheel (8) and for detection of the test cell (9) of automobile inertial;
Data processor connects Vehicular display device (10);
Data acquisition unit, analog-digital chip and data processor connect block terminal (3).
2. vehicle handling stability test macro according to claim 1, is characterized in that: test cell comprises the gyroscope that is arranged on vehicle centroid position, and gyroscope is connected with data acquisition unit.
3. vehicle handling stability test macro according to claim 2, it is characterized in that: load steering wheel, gyroscope and height sensor all connect the secondary instrument that is mated use, load steering wheel, gyroscope and height sensor are all connected with data acquisition unit by secondary instrument.
4. vehicle handling stability test macro according to claim 1, is characterized in that: the GPS sensor for detection of traval trace is installed in data acquisition unit.
5. vehicle handling stability test macro according to claim 1, it is characterized in that: detection components also comprises that acceleration transducer is all connected with data acquisition unit with sonic transducer for detection of the acceleration transducer of automobile steering roller vibration acceleration signal with for detection of the sonic transducer of motor car engine noise signal.
6. vehicle handling stability test macro according to claim 1, is characterized in that: this test macro also comprises and being arranged on seat back and for the camera (11) of live video, camera is connected with Vehicular display device.
7. a vehicle handling stability method of testing, is characterized in that, comprises the steps:
S1 driver responds to tested vehicle, and tested vehicle carries out experimental test;
S2 detection components detects the vehicle data of tested vehicle in experimental test in real time, and by vehicle data transmission to data acquisition unit;
S3 data acquisition unit is passed to data processor by the vehicle data after gathering, and the stability of vehicle processed and judge by data processor to vehicle data, the vehicle data of detection is passed to Vehicular display device simultaneously.
8. vehicle handling stability test macro according to claim 7, is characterized in that: in step S1, experimental test is at least a kind of in transient response test/steering reversal performance test/ease of steering test/steady state cornering test of snakelike test/turn to.
9. vehicle handling stability test macro according to claim 7, is characterized in that: in step S2, vehicle data is at least a kind of in following data parameters:
Speed: vehicle pace/forward acceleration;
Highly: car body is with respect to the height change on ground;
Pedal force performance: coordinate vehicle speed measurement pedal force performance;
Bearing circle performance: measure steering wheel steering moment/steering wheel steering angle/steering wheel steering angle speed;
Inertia properties: the deviation angle/acceleration/angular velocity of measuring vehicle horizontal direction, vertical direction;
Sound: engine noise signal;
Displacement: vehicle driving trace.
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