CN203502239U - Researching, developing and performance-testing platform for automobile power steering system - Google Patents
Researching, developing and performance-testing platform for automobile power steering system Download PDFInfo
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- CN203502239U CN203502239U CN201320624352.5U CN201320624352U CN203502239U CN 203502239 U CN203502239 U CN 203502239U CN 201320624352 U CN201320624352 U CN 201320624352U CN 203502239 U CN203502239 U CN 203502239U
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Abstract
The utility model provides a researching, developing and performance-testing platform for an automobile power steering system. The platform comprises a pedestal, track-plate guide rails are mounted on the pedestal, track plates are symmetrically mounted on the track-plate guide rails along the length direction, track-plate transverse drive units are respectively connected between the track plates and the pedestal, and two arc-shaped track-plate chutes are symmetrically mounted on the upper surface of each track plate in the direction vertical to the track-plate guide rails; a roller set support is mounted in each track-plate chute; a roller set is mounted on the two roller set supports, and a wheel notched belt is sleeved on the roller set; a directive wheel is mounted at the front axle and presses the notched belt; and a moment steering disk is connected with a steering gear, a hydraulic/electric power assisted mechanism is mounted on a steering column, and the steering gear is connected with the directive wheel. An output shaft of a wheel driving servo motor is connected with a main reducer and a differential assembly. The platform can construct and reproduce the complexity of practical driving condition of steering wheels to the largest extent on a stand, and the platform is simple in structure and convenient to operate.
Description
Technical field
The utility model belongs to field of mechanical technique, is specifically related to a kind of automobile power steering system research and development and performance detecting platform.This platform is applicable to various forms of automobile power steering systems as research and development and the test of hydraulic power steering system, electric boosting steering system etc.
Background technology
Heavy-duty car or when the sedan steering of extra-low pressure tire is housed resistance larger, especially steering drag is quite large at pivot stud or while parking, in order to alleviate especially female driver's fatigue strength of driver, improve maneuvering performance and the comfortableness of vehicle, adopting power steering is the good solution of dealing with problems.At present, hydraulic power steering system is generally application on heavy-duty car and passenger car, its technology maturation.In addition, along with the raising of mankind's energy-conserving and environment-protective consciousness, electric boosting steering system (EPS) starts to be applied gradually on passenger car, but EPS controller mainly meets domestic demands by import at present.Along with the increase year by year of automobile pollution, it is urgent need to solve the problem that exploitation has the power steering system controller that is independently only suitable for property right.
Develop power steering system, just must test out the correlation parameter of automobile steering system, main test mode is to be undertaken by real vehicle on-the-ground test or Computer Simulation at present.Complicacy due to Vehicular system and running environment, existing emulation technology is difficult to accurately some practical problemss of reflection, has very big difference with actual conditions, and if employing real train test simply obtains data, the control system construction cycle extends greatly, and experimentation cost is huge.Therefore, in order to save cost of development, shorten the R&D cycle, it is necessary setting up automobile power steering system research and development and performance detecting platform.At present, domestic a lot of producer and scientific research institution are all in this problem of research power steering system, especially the research and development of electric boosting steering system (EPS) controller, simultaneously also in the exploitation of carrying out corresponding test platform, but, the stand of current similar platform is all simpler and cruder, analog functuion is very limited, simulation precision is not high, for example disclosed patented claim CN202024896U on November 2 " closed-loop analogue means of automobile turning system resistance moment " in 2011 patented claim, it can only be for the auxiliary exploitation of EPS controller and the test of most basic performance, can't on stand, realize the simulation of steering and running environment.
Summary of the invention
Deficiency for current automobile power steering system research and development and performance detecting platform existence, the purpose of this utility model is, a kind of automobile power steering system research and development and performance detecting platform are provided, this platform has farthest been realized structure and the reduction of steered wheel Real-road Driving Cycle complicacy on stand, it is simple in structure, easy to operate.
In order to complete above-mentioned task, the utility model adopts following technical scheme to be solved:
Automobile power steering system research and development and performance detecting platform are during as performance detecting platform, and one-piece construction comprises road simulation system, test control system and pedestal etc.; When as system research and development platform, the physical construction of one-piece construction when comprising as performance detection stand, also comprise that automobile steering system (as moment bearing circle, hydraulic pressure/electric boosted mechanism, steering gear etc.), propons, deflecting roller, left side wheel speed probe, right side wheels speed probe, propons power source (being that wheel drives servomotor, main reducing gear and differential assembly), left side wheel load load electric-controlled hydraulic servomechanism installation, right side wheel load loads electric-controlled hydraulic servomechanism installation, these structures are fixedly mounted on a platform.The automotive steering top of propons power source at road simulation system that unifies, for convenience of producer or scientific research institution, the steering of certain vehicle (controller) is developed, also be applicable to the detection of measuring station to real vehicle steering correlation parameter, the Platform Designing of the parts such as integrating automotive steering, propons, deflecting roller, propons power source is integrated moveable platform simultaneously.Automobile steering system comprises bearing circle (outer ring sleeve has moment bearing circle), hydraulic pressure or electric boosted mechanism (built-in corner and torque sensor), steering gear etc., road simulation system comprises left side cylinder group, right side cylinder group, left side cylinder group support, right side cylinder group support, left side wheel cog belt, right side wheels cog belt, cog belt tensioning system, left rail dish, right rail dish etc., test control system comprises industrial computer (being inserted with data collecting plate card), left side brackets rotary angle transmitter, right side support rotary angle transmitter, left side brackets is rotated automatically controlled hydraulic servo device (containing pressure transducer), right side support rotates automatically controlled hydraulic servo device (containing pressure transducer), left side wheel load loads electric-controlled hydraulic servomechanism installation (containing pressure transducer), right side wheel load loads electric-controlled hydraulic servomechanism installation (containing pressure transducer), left side wheel load sensor, right side wheel load sensor, left side drum rotation speed sensor, drum rotation speed sensor left side, right side cylinder group drives servomotor, right side cylinder group drives servomotor etc.
On pedestal, be provided with track plate guide rail, on the length direction of track plate guide rail, be symmetrically installed with left rail dish and right rail dish, between left rail dish and pedestal, be connected with respectively left rail dish lateral driver device, between right rail dish and pedestal, be connected with respectively right rail dish lateral driver device, track plate lateral driver device adopts electric-controlled hydraulic cylinder structure, lateral driver device one end is connected with pedestal, the other end is connected with track plate, by controlling lateral driver device, can drive respectively track plate to move, to mate the vehicle of disalignment distance, the upper surface of left rail dish line centered by track plate guide rail is arranged with the track plate chute of two circular arcs, a pack support that rolls left is installed in each track plate chute, on two left side cylinder group supports 26, left side cylinder group 6 is installed, left side wheel cog belt 7 is enclosed within inside by this left side cylinder group 6, the upper surface of right rail dish line centered by track plate guide rail is also arranged with the track plate chute of two circular arcs, a right side cylinder group support is installed in each track plate chute, on two right side cylinder group supports, right side cylinder group is installed, right side cog belt is enclosed within the cylinder group of right side, and the upper surface of cog belt is equivalent to actual road surface, and the roughness of cog belt can be as required changed by the method such as sandblast, with the different attachment coefficients in the situation of Reality simulation road surface, cog belt tensioning system is for regulating the tensioning degree of the cog belt of both sides, to guarantee the levelness of cog belt upper surface, left side brackets is rotated automatically controlled hydraulic servo device and be provided with hydraulic cylinder in the diagonally opposing corner direction of cylinder group support, right side support rotates automatically controlled hydraulic servo device and be also provided with hydraulic cylinder in the diagonally opposing corner direction of cylinder group support, piston one end is all connected with cylinder group support, hydraulic cylinder body is fixed, by controlling the hydraulic coupling of each hydraulic cylinder, can realize cylinder group support and rotate to an angle along track plate chute, the pivot angle of the relative longitudinal direction of car plane of wheel while turning with simulated automotive, control left side wheel support rotate automatically controlled hydraulic servo device and right side wheels support rotate automatically controlled hydraulic servo device make left side cylinder group support and right side cylinder group support unequal along the track plate chute anglec of rotation, wheel pivot angle actual unequal situation in the left and right sides while can simulated automotive turning, left side brackets rotary angle transmitter is installed on left rail dish, right side support rotary angle transmitter is installed on right rail dish, rotational angle for detection of cylinder group support in track plate chute, by this feedback signal and industrial computer, form the closed-loop control of cylinder group support being rotated to automatically controlled hydraulic servo device, guaranteed that each cylinder group support can rotate arbitrarily angled value accurately, pressure or torque signals that industrial computer can also rotate automatically controlled hydraulic servo device feedback according to support can calculate the transverse acceleration of arranged on left and right sides tire when turning, and are convenient to analyze the control stability of automobile, left side cylinder group driving servomotor connects the main shaft of left side cylinder group to drive its rotation, and right side cylinder group drives the main shaft of servomotor connection right side cylinder group to drive its rotation, left side cylinder group speed probe is arranged on the bearing seat of left side cylinder group one side, right side cylinder group speed probe is arranged on the bearing seat of right side cylinder group one side, according to drum rotation speed and the radius roller movement velocity that obtains cog belt that can convert, it is vehicle speed value, make cylinder group drive servomotor to be operated under rotating speed control mode, feedback by cylinder group signals of rotational speed sensor realizes the closed-loop control that wheel is driven to servomotor, therefore can be stable be controlled at any vehicle speed value, in addition, the vehicle speed value of acquisition is presented on LED giant-screen, during as performance detecting platform, can control accurately throttle opening for driver.
The moment acting on moment bearing circle passes to deflecting roller through mechanisms such as bearing circle, hydraulic pressure or electric boosted mechanism, steering gear, steering trapeziums successively, makes steered wheel realize beat action; Steering gear can be the forms such as pinion and-rack, circulating ball type, and hydraulic pressure/electric boosted mechanism can be the various ways such as tooth bar booster type, pinion wheel booster type, steering column booster type, so this platform is applicable to carrying out the R&D work of all kinds steering.Left side wheel load loads electric-controlled hydraulic servomechanism installation and is arranged on the propons near left side steered wheel inner side, right side wheel load loads electric-controlled hydraulic servomechanism installation and is arranged on the propons near right hand steering wheel inner side, the hydraulic cylinder body of this servomechanism installation is fixed, piston one end is connected with propons, under the control of industrial computer 37, to propons, carry out wheel load loading, to simulate the propons quality of various vehicles, on each cylinder group bearing seat, wheel load sensor is all installed, for measuring the load of each sidecar wheel, the feedback signal that industrial computer receives from wheel load sensing and wheel load load electric-controlled hydraulic servomechanism installation and form closed-loop control, accurately to load vehicle weight on front axle, can also control left side wheel load and load electric-controlled hydraulic servomechanism installation and right side wheel load and load electric-controlled hydraulic servomechanism installation and load the pressure not waiting and realize simulating vehicle and turn and roll the wheel load transfer causing, during as research/development platform, inner side end at steered wheel is equipped with respectively left side wheel speed probe and right side wheels sensor, to detect the rotating speed of steered wheel, wheel drives servomotor to drive rotation of wheel by main reducing gear and differential mechanism, and then drive cog belt to move, the vehicle wheel rotational speed value of obtaining and known radius of wheel can convert and obtain vehicle speed value, this value can be outputed in LED display for driver's reference, in addition, speed probe, industrial computer and wheel load load electric-controlled hydraulic servomechanism installation and have formed closed-loop control, the rotating speed that can accurately control wheel is vehicle speed value, the existence of differential mechanism makes stand realize that Ackermann steer angle left and right wheels rotating speed does not wait and rolling distance situation not etc., when left side drum driven servomotor and right side drum driven servomotor are operated in torque control model, by adjusting the output torque of servomotor, can embody strictly according to the facts the interaction force on vehicle tire and ground in actual moving process, therefore this platform has truly completed building with the reduction of steered wheel real work state of passenger car steering and driving axle and has reproduced on stand, and these are all that current existing platform cannot be simulated realization, according to research needs, can on this platform, complete the research and development of all power steering systems and related fields.
The beneficial effects of the utility model are: platform of the present utility model has reduced the time of day of Ackermann steer angle strictly according to the facts, in the time need to testing the various performances of power steering system or development of new controller, without finding suitable test site, without for public use or buy various testing tools, without expending a large amount of manpowers and time, outdoor, carry out various tests etc., a large amount of manpower and materials have been saved, save cost of development, shorten the construction cycle.Use platform of the present utility model can carry out to the power steering system of existing vehicle detection, evaluation and the improvement of various performances; Can complete exploitation and test to the steering controller of preproduction vehicle type; Complete the work such as power steering system malfunction elimination; Therefore the research that, this platform is vehicle handling stability, the research of power steering system performance are, good condition has been created in the exploitation of controller etc.
Accompanying drawing explanation
Fig. 1 is the physical construction vertical view of automobile power steering system research and development of the present utility model and performance detecting platform.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is that the physical construction master of the utility model during as detection platform looks schematic diagram.
Fig. 4 is that the utility model is as the structure vertical view of detection platform.
Fig. 5 is electrical connection schematic diagram of the present utility model.
In figure: 1 ?pedestal, 2 ?track plate guide rail, 3 ?left rail dish lateral driver device, 4 ?left rail dish, 5 ?left rail dish chute, 6 ?left side cylinder group, 7 ?left side wheel cog belt, 8 ?left side brackets are rotated automatically controlled hydraulic servo device, 9 ?left side cylinder group drive servomotor, 10 ?main reducing gear and differential assembly, 11 ?wheel drive servomotor, 12 ?steering gear, 13 ?hydraulic pressure/electric boosted mechanism, 14 ?moment bearing circle, 15 ?right rail dish lateral driver device, 16 ?right rail dish, 17 ?right rail dish chute, 18 ?right side cylinder group, 19 ?right side supports rotate automatically controlled hydraulic servo device, 20 ?right side wheels cog belt, 21 ?right side cylinder group drive servomotor, 22 ?deflecting roller, 23 ?right side wheel loads load electric-controlled hydraulic servomechanism installation, 24 ?left side wheel loads load electric-controlled hydraulic servomechanism installation, 25 ?right side cylinder group support, 26 ?left side cylinder group support, 27 ?right side cog belt tensioning system, 28 ?left side cog belt tensioning system, 29 ?right side cylinder group speed probe, 30 ?left side cylinder group speed probe, 31 ?right side support rotary angle transmitter, 32 ?left side brackets rotary angle transmitter, 33 ?left side wheel speed probe, 34 ?right side wheels speed probe, 35 ?left side wheel load sensors, 36 ?right side wheel load sensors, 37 ?industrial computer.
Below in conjunction with the drawings and specific embodiments, the utility model is further explained.
Embodiment
As shown in figure 1 ?Fig. 4, automobile power steering system research and development of the present utility model and performance detecting platform, comprise pedestal 1, is provided with track plate guide rail 2 on pedestal 1, is symmetrically installed with left rail dish 4 and right rail dish 16 on the length direction of track plate guide rail 2;
Between left rail dish 4 and pedestal 1, be connected with left rail dish lateral driver device 3, left rail dish lateral driver device 3 is in order to drive left rail dish 4 to move left and right on track plate guide rail 2; On left rail dish 4 upper surfaces with in the perpendicular direction of track plate guide rail 2, be arranged with the left rail dish chute 5 of two circular arcs; In two left rail dish chutes 5, be separately installed with a left side cylinder group support 26; On two left side cylinder group supports 26, left side cylinder group 6 is installed, left side wheel cog belt 7 is enclosed within inside by left side cylinder group 6; Left side cog belt tensioning system 28 is for regulating the tensioning degree of left side wheel cog belt 7; Left side brackets is rotated automatically controlled hydraulic servo device 8 and is fixed on pedestal 1, and its hydraulic cylinder connects left side cylinder group support 26, in order to control its left rail dish chute 5 along its place, rotates; Left side cylinder group drives the main shaft of a left side cylinder group 6 of servomotor 9 connection to drive its rotation; Left side cylinder group speed probe 30 is installed, for detection of the rotating speed of left side cylinder group 6 on one side shaft holder of left side cylinder group 6; Left side brackets rotary angle transmitter 32 is installed, the rotational angle for detection of left side cylinder group support 26 in left rail dish chute 5 on left rail dish 4; Left side wheel speed probe 33 is arranged on the inner side end of left side wheel, to detect the rotating speed of left side wheel; Left side wheel load loads electric-controlled hydraulic servomechanism installation 24 and is arranged on automobile front axle near one end of left side wheel, to carry out wheel load loading to left side wheel under the control at industrial computer 37; Left side wheel load sensor 35 is arranged on the bearing seat of left side cylinder group 6, for measuring the load of left side wheel;
Between right rail dish 16 and pedestal 1, be connected with right rail dish lateral driver device 15, right rail dish lateral driver device 15 is in order to drive right rail dish 16 to move left and right on track plate guide rail 2; On right rail dish 16 upper surfaces with in the perpendicular direction of track plate guide rail 2, be arranged with the right rail dish chute 17 of two circular arcs; In two right rail dish chutes 17, be separately installed with a right side cylinder group support 25; On two right side cylinder group supports 25, right side cylinder group 18 is installed, right side wheels cog belt 20 is enclosed within inside by this right side cylinder group 18; Right side cog belt tensioning system 27 is for regulating the tensioning degree of right side wheels cog belt 20; Right side support rotates automatically controlled hydraulic servo device 19 and is fixed on pedestal, and its hydraulic cylinder connects right side cylinder group support 25, in order to control its right rail dish chute 17 along its place, rotates; Right side cylinder group drives the main shaft of a right side cylinder group 18 of servomotor 21 connections to drive its rotation; Right side cylinder group speed probe 29 is installed, for detection of the rotating speed of left side cylinder group 18 on one side shaft holder of right side cylinder group 18; Right side support rotary angle transmitter 31 is installed, the rotational angle for detection of right side cylinder group support 25 in right rail dish chute 17 on right rail dish 16; Right side wheels speed probe 34 is arranged on the inner side end of right side wheels, to detect the rotating speed of right side wheels; Right side wheel load loads electric-controlled hydraulic servomechanism installation 23 and is arranged on automobile front axle near one end of right side wheels, to carry out wheel load loading to right side wheels under the control at industrial computer 37; Right side wheel load sensor 36 is arranged on the bearing seat of right side cylinder group 18, for measuring the load of right side wheels;
Main reducing gear and differential assembly 10, wheel drive servomotor 11, steering gear 12, hydraulic pressure/electric boosted mechanism 13, moment bearing circle 14 and two deflecting roller 22 integral installations on a removable stand, and this stand is arranged on left side wheel cog belt 7 and right side wheels cog belt 20 tops; Two deflecting rollers 22 are all for being arranged on the propons of vehicle, and are pressed in respectively on left side wheel cog belt 7 and right side wheels cog belt 20; Moment bearing circle 14 is connected with steering gear 12 by steering column, and hydraulic pressure/electric boosted mechanism 13 is installed on steering column, and steering gear 12 is connected with deflecting roller 22 by steering trapezium, to realize the beat of deflecting roller 22.Wheel drives the output shaft of servomotor 11 to connect main reducing gear and differential assembly 10, and main reducing gear is connected with the deflecting roller 22 of the left and right sides by semiaxis with differential assembly 10 and transmitting torque, to drive deflecting roller 22 to rotate.
As shown in Figure 5, the electrical connection of platform of the present utility model is as follows:
Left rail dish lateral driver device 3, left side brackets is rotated automatically controlled hydraulic servo device 8, left side cylinder group drives servomotor 9, wheel drives servomotor 11, moment bearing circle 14, right rail dish lateral driver device 15, right side support rotates automatically controlled hydraulic servo device 19, right side cylinder group drives servomotor 21, right side wheel load loads electric-controlled hydraulic servomechanism installation 23, left side wheel load loads electric-controlled hydraulic servomechanism installation 24, right side cylinder group speed probe 29, left side cylinder group speed probe 30, right side support rotary angle transmitter 31, left side brackets rotary angle transmitter 32, left side wheel speed probe 33, right side wheels speed probe 34, left side wheel load sensor 35 is connected respectively industrial computer 37 with right side wheel load sensor 36.
Track plate lateral driver device 3,15 can adopt driven by servomotor screw mechanism to realize, and servomotor is fixed on pedestal 1, and the other end is connected on track plate 4 and 16.Support rotates automatically controlled hydraulic servo device 8 and 19 and also can adopt servomotor, universal joint and screw mechanism to realize maintaining static or rotatablely moving of support, during servomotor, also will be fixed on pedestal 1; In like manner, wheel load loading electric-controlled hydraulic servomechanism installation 23 and 24 also can be realized by driven by servomotor screw mechanism.Right side cog belt tensioning system 27, left side cog belt tensioning system 28 can adopt belt stress.Right side wheel load sensor 19, left side wheel load sensor 35 adopt load sensor.
When needing real vehicle steering to test as performance detecting platform, industrial computer 37 is first according to this vehicle parameter (as wheelbase, front axle load etc.) of having inputted, by controlling left rail dish lateral driver device 3 and 15 motions of right rail dish lateral driver device on pedestal 1, make it mate the wheelbase of passenger car to be detected, when passenger car to be detected reaches the cog belt of detection platform, the basic centre position in left side wheel cog belt 7 and right side wheels cog belt 20 of arranged on left and right sides wheel 22.During detection, can be divided into and have driver's operation and non-driver operation two schemes.Side's scheme one (having driver's operation): for general preposition forerunner's passenger car (being that propons type is steering and driving axle), moment bearing circle 14 is arranged on the bearing circle of passenger car to be detected, and by the torque signals input industrial computer 37 of output.For the actual motion state of reduction vehicle, start motor car engine, by engine, provide power, drive cog belt 7 and 20 operations.Industrial computer 37 is controlled left side brackets and is rotated automatically controlled hydraulic servo device 8 and right side support and rotate automatically controlled hydraulic servo device 19 and make support maintain longitudinal direction of car axis direction and beat not, the running resistance when controlling left side cylinder group and driving servomotor 9 and right side cylinder group to drive servomotor 21 to make it simulate this car actual motion.While starting to detect, the vehicle speed value that driver shows according to instrument, control accelerator open degree, make the speed of a motor vehicle be controlled at the vehicle speed value of requirement of experiment, then driver is according to requirement of experiment operational torque bearing circle, measuring respectively automobile is having, pivot stud during manual steering, utmost point low speed (0.5-10km/h, need the speed of a motor vehicle value of test to choose according to national experimental standard), lower and (11-80km/h at a high speed, need the speed of a motor vehicle value of test to choose according to national experimental standard) etc. the hand-wheel torque under operating mode, and the measurement that completes steering moment of friction, the work such as measurement of steering column moment of friction, industrial computer 37 is processed the moment bearing circle signal gathering preserve, specific experiment step is carried out according to concerned countries standard.For part front-engine rear-drive passenger car (being that propons type is only steeraxle), be the actual motion state of reduction vehicle, by left side cylinder group, drive servomotor 9 and right side cylinder group to drive servomotor 21 that power is provided, drive steered wheel 22 rotations.Industrial computer drives the rotating speed of servomotor 9 and 21, i.e. accurate simulated automotive travel speed according to the accurate index drum group of the signal of left side cylinder group speed probe 30 and right side cylinder group speed probe 29.Equally, driver, according to requirement of experiment operating torque bearing circle 14, completes the test job of regulation, and industrial computer 37 is processed moment bearing circle 14 signals that collect preserve, and specific experiment step is carried out according to concerned countries standard.The hand-wheel torque data of obtaining can, for research and development and the improvement of this vehicle power steering system, also can be used for detecting and develop the also performance of the power steering system of entrucking, so that evaluate quality or the grade of this power steering system.Scheme two (non-driver operation): for general preposition forerunner's passenger car (being that propons type is steering and driving axle), driver reaches detection platform by vehicle to be detected, moment bearing circle 14 be arranged on the bearing circle of passenger car to be detected and be locked at bearing circle centre position, the torque signals of output input industrial computer 37.Be similarly the actual motion state of reduction vehicle, start motor car engine, by engine, provide power, drive cog belt 7 and 20 operations.While starting to detect, the vehicle speed value that driver just shows according to LED display, controls accelerator open degree, makes the speed of a motor vehicle be controlled at the vehicle speed value of requirement of experiment, and without operational torque bearing circle 14.Industrial computer 37 is according to the passenger car parameter information to be detected of having inputted, can learn according to steering steering trapezium parameter conversion the relation of both sides wheel pivot angle, again according to the corresponding left side of controlling of the relation of both sides wheel pivot angle, right two side stand electric rotating control hydraulic servo devices 8 and 19 make left side cylinder group support 26 and right side cylinder group support 25 different rotation angle, thereby make the continuous deflection of longitudinal axis of the relative vehicle of longitudinal axis of cog belt, rotation with simulation bearing circle, when the signal of therefore exporting from moment bearing circle is vehicle actual motion, steering dish makes the operating torque of turn inside diameter, in like manner according to requirement of experiment, complete above-mentioned detection or test job.For part front-engine rear-drive passenger car (being that propons type is only steeraxle), be similarly the actual motion state of reduction vehicle, by arranged on left and right sides cylinder group, drive servomotor 9 and 21 that power is provided, drive steered wheel 22 rotations.Industrial computer 37 is accurately controlled motor speed according to the signal of arranged on left and right sides cylinder group speed probe 30 and 29, i.e. accurate simulated automotive travel speed.But now driver neither needs operating torque bearing circle 14, also do not need to control accelerator open degree, only need be sitting in main driving position.In like manner, complete the test job of regulation according to requirement of experiment, industrial computer 37 is processed the moment bearing circle signal collecting preserve, and specific experiment step is carried out according to concerned countries standard.The hand-wheel torque data of obtaining can, for research and development and the improvement of this vehicle power steering system, also can be used for detecting and develop the also performance of the power steering system of entrucking, so that evaluate quality or the grade of this power steering system.Said mechanism concerted action, has truly comprehensively reduced the steering state of actual vehicle, therefore makes testing result better reflect the performance of power steering system.
When as system research and development platform, be that automobile production producer wish is produced the scientific research institutions such as the power steering system of certain new model or colleges and universities and carried out new controller exploitation, when fundamental researchs etc. are movable, can study for the steering of a certain fixedly vehicle (such as preposition forerunner's passenger car), now only need be by collection automobile steering system (as moment bearing circle 14, hydraulic pressure/electric boosted mechanism 13, steering gear 12 etc.), propons, deflecting roller 22, left side wheel speed probe 33, right side wheels speed probe 34, propons power source (is that wheel drives servomotor 11, main reducing gear and differential assembly 10), left side wheel load loads electric-controlled hydraulic servomechanism installation 24, the moveable platform that right side wheel load loading electric-controlled hydraulic servomechanism installation 23 grades are integrated is fixed on cog belt top, easy to operate.Wheel drives servomotor 11 for replacing engine output power, and power passes to deflecting roller 22 through main reducing gear and differential assembly 10.During detection, industrial computer 37 is according to the vehicle basic parameter of inputting in advance, steering parameter is controlled wheel load loading electric-controlled hydraulic servomechanism installation 24 and 23 and is loaded to deflecting roller, wheel load sensor 35 and 36 is monitored the load on left and right wheels in real time, industrial computer 37, wheel load sensor 35 and 36, wheel load loads electric-controlled hydraulic servomechanism installation 24 and 23 and jointly completes the closed-loop control that wheel load loads, greatly improved precision, therefore this platform has farthest restored the real working condition of Ackermann steer angle, debugging for power steering system controller, exploitation, the research of vehicle handling stability, the research and development of new type power steering etc. provide good condition, make detection and test findings have more reliability, accuracy.For research and development, need all can test and detect according to scheme one or two pairs of power steering systems of scheme, also can test to compare analysis by two schemes simultaneously, according to GB requirement, can complete power steering system subjective assessment and objective evaluation test, and then the combination property of steering is made the most accurately and being evaluated.In addition, by this platform, can complete the continuous test of pre-exploitation director demon and debugging work, for develop controller Power assisted control characteristic, return the research work such as positive control characteristic, damping control characteristic, power-assisted Current Control condition be provided, can fully study the various performances of power steering system, and then complete the exploitation of the power steering system with superperformance.
Claims (3)
1. an automobile power steering system is researched and developed and performance detecting platform, comprise pedestal (1), on pedestal (1), be provided with track plate guide rail (2), on the length direction of track plate guide rail (2), be symmetrically installed with left rail dish (4) and right rail dish (16); It is characterized in that:
Between left rail dish (4) and pedestal (1), be connected with left rail dish lateral driver device (3), left rail dish lateral driver device (3) is in order to drive left rail dish (4) to move left and right on track plate guide rail (2); On left rail dish (4) upper surface with in the perpendicular direction of track plate guide rail (2), be arranged with the left rail dish chute (5) of two circular arcs; In two left rail dish chutes (5), be separately installed with a left side cylinder group support (26); Left side cylinder group (6) is installed on two left side cylinder group supports (26), and left side wheel cog belt (7) is enclosed within inside by left side cylinder group (6); Left side cog belt tensioning system (28) is for regulating the tensioning degree of left side wheel cog belt (7); Left side brackets is rotated automatically controlled hydraulic servo device (8) and is fixed on pedestal (1) above, and its hydraulic cylinder connects left side cylinder group support (26), in order to control its left rail dish chute (5) along its place, rotates; Left side cylinder group drives the main shaft of servomotor (9) left side cylinder group of connection (6) to drive its rotation; Left side cylinder group speed probe (30) is installed, for detection of the rotating speed of left side cylinder group (6) on one side shaft holder of left side cylinder group (6); Left side brackets rotary angle transmitter (32) is installed, the rotational angle for detection of left side cylinder group support (26) in left rail dish chute (5) on left rail dish (4); Left side wheel speed probe (33) is arranged on the inner side end of left side wheel, to detect the rotating speed of left side wheel; Left side wheel load loads electric-controlled hydraulic servomechanism installation (24) and is arranged on automobile front axle near one end of left side wheel, to carry out wheel load loading to left side wheel under the control in industrial computer (37); Left side wheel load sensor (35) is arranged on the bearing seat of left side cylinder group (6), for measuring the load of left side wheel;
Between right rail dish (16) and pedestal (1), be connected with right rail dish lateral driver device (15), right rail dish lateral driver device (15) is in order to drive right rail dish (16) to move left and right on track plate guide rail (2); On right rail dish (16) upper surface with in the perpendicular direction of track plate guide rail (2), be arranged with the right rail dish chute (17) of two circular arcs; In two right rail dish chutes (17), be separately installed with a right side cylinder group support (25); Right side cylinder group (18) is installed on two right side cylinder group supports (25), and right side wheels cog belt (20) is enclosed within inside by this right side cylinder group (18); Right side cog belt tensioning system (27) is for regulating the tensioning degree of right side wheels cog belt (20); Right side support rotates automatically controlled hydraulic servo device (19) and is fixed on pedestal, and its hydraulic cylinder connects right side cylinder group support (25), in order to control its right rail dish chute (17) along its place, rotates; Right side cylinder group drives the main shaft of servomotor (21) right side cylinder group of connection (18) to drive its rotation; Right side cylinder group speed probe (29) is installed, for detection of the rotating speed of left side cylinder group (18) on one side shaft holder of right side cylinder group (18); Right side support rotary angle transmitter (31) is installed, the rotational angle for detection of right side cylinder group support (25) in right rail dish chute (17) on right rail dish (16); Right side wheels speed probe (34) is arranged on the inner side end of right side wheels, to detect the rotating speed of right side wheels; Right side wheel load loads electric-controlled hydraulic servomechanism installation (23) and is arranged on automobile front axle near one end of right side wheels, to carry out wheel load loading to right side wheels under the control in industrial computer (37); Right side wheel load sensor (36) is arranged on the bearing seat of right side cylinder group (18), for measuring the load of right side wheels;
Main reducing gear and differential assembly (10), wheel drive servomotor (11), steering gear (12), hydraulic pressure/electric boosted mechanism (13), moment bearing circle (14) and two deflecting rollers (22) integral installation on a removable stand, and this stand is arranged on left side wheel cog belt (7) and right side wheels cog belt (20) top; Two deflecting rollers (22) are all for being arranged on the propons of vehicle, and are pressed in respectively on left side wheel cog belt (7) and right side wheels cog belt (20); Moment bearing circle (14) is connected with steering gear (12) by steering column, and hydraulic pressure/electric boosted mechanism (13) is installed on steering column, and steering gear (12) is connected with deflecting roller (22) by steering trapezium; Wheel drives the output shaft of servomotor (11) to connect main reducing gear and differential assembly (10), and main reducing gear is connected with the deflecting roller (22) of the left and right sides by semiaxis with differential assembly (10) and transmitting torque, to drive deflecting roller (22) to rotate;
Left rail dish lateral driver device (3), left side brackets is rotated automatically controlled hydraulic servo device (8), left side cylinder group drives servomotor (9), wheel drives servomotor (11), moment bearing circle (14), right rail dish lateral driver device (15), right side support rotates automatically controlled hydraulic servo device (19), right side cylinder group drives servomotor (21), right side wheel load loads electric-controlled hydraulic servomechanism installation (23), left side wheel load loads electric-controlled hydraulic servomechanism installation (24), right side cylinder group speed probe (29), left side cylinder group speed probe (30), right side support rotary angle transmitter (31), left side brackets rotary angle transmitter (32), left side wheel speed probe (33), right side wheels speed probe (34), left side wheel load sensor (35) is connected respectively industrial computer (37) with right side wheel load sensor (36).
2. automobile power steering system research and development as claimed in claim 1 and performance detecting platform, is characterized in that: described right side cog belt tensioning system (27), left side cog belt tensioning system (28) adopt belt stress.
3. automobile power steering system research and development as claimed in claim 1 and performance detecting platform, is characterized in that: described right side wheel load sensor (19), left side wheel load sensor (35) adopt load sensor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320624352.5U CN203502239U (en) | 2013-10-08 | 2013-10-08 | Researching, developing and performance-testing platform for automobile power steering system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320624352.5U CN203502239U (en) | 2013-10-08 | 2013-10-08 | Researching, developing and performance-testing platform for automobile power steering system |
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| CN203502239U true CN203502239U (en) | 2014-03-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487265A (en) * | 2013-10-08 | 2014-01-01 | 长安大学 | Automobile power steering system development and performance detection platform |
| CN104931281A (en) * | 2014-06-23 | 2015-09-23 | 萨姆株式会社 | Vehicle steering device testing device having real vehicle carrying capacity simulating function |
| CN110954337A (en) * | 2019-11-19 | 2020-04-03 | 同济大学 | Steering resistance compensation structure for vehicle test |
| CN111307475A (en) * | 2019-12-18 | 2020-06-19 | 湖南汽车工程职业学院 | Automobile steering performance testing device |
| CN111521409A (en) * | 2020-04-30 | 2020-08-11 | 金瓜子科技发展（北京）有限公司 | Life testing device |
| CN111811841A (en) * | 2020-07-22 | 2020-10-23 | 无锡职业技术学院 | Debugging rack for automobile steering system |
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2013
- 2013-10-08 CN CN201320624352.5U patent/CN203502239U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487265A (en) * | 2013-10-08 | 2014-01-01 | 长安大学 | Automobile power steering system development and performance detection platform |
| CN103487265B (en) * | 2013-10-08 | 2016-01-20 | 长安大学 | Automobile power steering system research and development and performance detecting platform |
| CN104931281A (en) * | 2014-06-23 | 2015-09-23 | 萨姆株式会社 | Vehicle steering device testing device having real vehicle carrying capacity simulating function |
| CN104931281B (en) * | 2014-06-23 | 2019-07-23 | 萨姆株式会社 | A kind of vehicle steering device test device having real vehicle load-carrying analog functuion |
| CN110954337A (en) * | 2019-11-19 | 2020-04-03 | 同济大学 | Steering resistance compensation structure for vehicle test |
| CN111307475A (en) * | 2019-12-18 | 2020-06-19 | 湖南汽车工程职业学院 | Automobile steering performance testing device |
| CN111521409A (en) * | 2020-04-30 | 2020-08-11 | 金瓜子科技发展（北京）有限公司 | Life testing device |
| CN111811841A (en) * | 2020-07-22 | 2020-10-23 | 无锡职业技术学院 | Debugging rack for automobile steering system |
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