CN202066703U - Vehicle ABS (Anti-lock braking system) detection bench - Google Patents

Abstract

The utility model provides a vehicle ABS detection bench, which comprises a pedestal, a simulation device, a driving and tensioning mechanism, a measuring and controlling unit and four roller assemblies having the same structure, wherein each roller assembly can automatically adjust shaft distance between a main roller and an auxiliary roller according to different wheel diameters and detection requirements so as to adjust attachment coefficients between each wheel and a simulated road surface at will and simulate the attachment condition of a vehicle on different road surfaces. By employing the vehicle ABS detection bench, the moments of inertia of the rollers cannot be attached to the wheels, thereby being in favor of guaranteeing detection precision.

Description

A kind of vehicle ABS monitor station

Technical field

The utility model relates to the Automobile Detection field, particularly a kind of vehicle ABS monitor station.

Technical background

On May 21st, 2008, disclosed application number was 200710019075.4 " a kind of variable adhesion coefficient indoor vehicle ABS test-bed ", translational kinetic energy when the rotational kinetic energy simulated automotive of employing fly wheel system travels on the road surface, realize the simulation of coefficient of road adhesion by the torque controller index drum, realization is finished vehicle ABS system works performance detection to the dynamic similation of car brakeing process.The problem that this testing table exists is: after the test wheel locking, the power rotor and the driven rotor surface of skidding and being transferred to torque controller, kinematic relation when braking on the road surface between wheel and the ground just changes into the power rotor of torque controller on the monitor station and the kinematic relation between the driven rotor, so the wheel rotating part of detected vehicle was worked, can not be guaranteed accuracy of detection thereby influence ABS by the extra moment of inertia that has added cylinder when this testing table detected.

Summary of the invention

In order to overcome the indoor vehicle ABS test-bed deficiency of above-mentioned variable adhesion coefficient, the utility model proposes a kind of vehicle ABS monitor station.

The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of vehicle ABS monitor station, comprise measurement and control unit, base, tin a preceding transmission and a strainer roll left, the front roll transmission shaft, transmission and strainer before the analogue means, right cylinder, front roll transmission shafts bearing, transmission and strainer in the middle of the right cylinder, transmission and strainer behind the right cylinder, major-minor drum rotation speed sensor, back roll transmission shaft, tin a back transmission and a strainer roll left, back roll transmission shafts bearing, roll left tin a middle transmission and a strainer, and structure identical before an assembly that rolls left, preceding right roller assembly, after an assembly that rolls left, the right roller assembly in back; Each roller assembly all comprises frame, master rotor, sensing cylinder, main drum shaft bearing, master rotor travel mechanism, sensing cylinder position sensor, support, master rotor position transducer, sensing drum rotation speed sensor, auxiliary cylinder position transducer, auxiliary roller axis bearing, auxiliary cylinder travel mechanism, auxiliary cylinder, the transmission of major-minor cylinder and strainer, and guide rail is arranged on the frame; Master rotor is supported on the guide rail of frame by the main drum shaft bearing, master rotor is connected with auxiliary cylinder by transmission of major-minor cylinder and strainer, auxiliary cylinder is bearing on the guide rail of frame by the auxiliary roller axis bearing, support one end links to each other with frame, the sensing cylinder by bracket supports on frame, sensing cylinder position sensor is a rotary angle transmitter, is used for measuring the position of sensing cylinder with respect to master rotor, reflects detected vehicle tyre radius size; For the rotating speed that detects the sensing cylinder, inquire into detected wheel of vehicle speed, sensing cylinder one end is equipped with sensing drum rotation speed sensor; Master rotor position transducer, auxiliary cylinder position transducer all adopt linear displacement transducer, and the master rotor position transducer is used for detecting the position of master rotor, and the auxiliary cylinder position transducer is used for detecting the position of auxiliary cylinder; Master rotor travel mechanism one end is fixed on the frame, the other end links to each other with the main drum shaft bearing, is used for making master rotor to do reciprocating linear motion along the guide rail of frame; Auxiliary cylinder travel mechanism one end is fixed on the frame, the other end links to each other with the auxiliary roller axis bearing, is used for making auxiliary cylinder to do reciprocating linear motion along the guide rail of frame, realizes that the wheelbase of master rotor and auxiliary cylinder is regulated; Roller assembly is fixed on the base by frame, a preceding transmission and strainer are connected with the main drum shaft of an assembly that before rolls left front roll transmission shaft one end by rolling left, the other end by right cylinder before transmission and strainer be connected with the main drum shaft of preceding right roller assembly, the front roll transmission shaft is fixed on the base by front roll transmission shafts bearing, on the front roll transmission shaft analogue means is installed, is used for simulating the kinetic energy of vehicle to be measured; The main drum shaft of preceding right roller assembly is connected by the auxiliary roller axis with the right roller assembly in back of transmission and strainer in the middle of the right cylinder; Back roll transmission shaft one end by right cylinder after transmission and strainer be connected with the auxiliary roller axis of the right roller assembly in back, the other end by roll left a back transmission and strainer with after the roll left auxiliary roller axis of an assembly be connected, the back roll transmission shaft is fixed on the base by back roll transmission shafts bearing, and the back roll transmission shaft is provided with major-minor drum rotation speed sensor; After the roll left auxiliary roller axis of an assembly be connected with the main drum shaft of an assembly that before rolls left by roll left a middle transmission and strainer; Sensing cylinder position sensor in measurement and control unit and analogue means, major-minor drum rotation speed sensor and each roller assembly, master rotor position transducer, auxiliary cylinder position transducer, sensing drum rotation speed sensor, master rotor travel mechanism, auxiliary cylinder travel mechanism are electrically connected, be used for Information Monitoring, require control master rotor travel mechanism and auxiliary cylinder travel mechanism according to detecting, regulate the wheelbase of master rotor and auxiliary cylinder, realization is to the simulation of different coefficients of road adhesion, storage and deal with data, the output testing result; After detecting end, measurement and control unit makes master rotor and auxiliary cylinder close mutually by master rotor travel mechanism and auxiliary cylinder travel mechanism, is convenient to detected wheel of vehicle and rolls cylinder away from.

The attachment coefficient of this monitor station is like this control: analyze the adhesion F that cylinder provides according to the stressing conditions of tested vehicle on cylinder _μFor:

F _μ＝μ(N ₁+N ₂) (1)

${\mathrm{<figure-callout\; id="1"\; label="N"\; filenames="HSA00000500604400031.png"\; state="\{\{state\}\}">N</figure-callout>}}_1+{\mathrm{<figure-callout\; id="2"\; label="N"\; filenames="HSA00000500604400031.png"\; state="\{\{state\}\}">N</figure-callout>}}_2=\frac{\mathrm{Gs}}{\cos \mathrm{\&alpha;}}---\left(2\right)$

That is:

$F_{\mathrm{\&mu;}}=\frac{\mathrm{\&mu;Gs}}{\cos \mathrm{\&alpha;}}---\left(3\right)$

In formula (1)～(3), μ is the attachment coefficient between cylinder and tire; N ₁, N ₂Be respectively master rotor, auxiliary cylinder holding power to wheel; Gs is the wheel wheel load; α is the angle of setting of wheel on cylinder.As seen, attachment coefficient μ between cylinder and tire and wheel wheel load Gs one regularly can adjust wheelbase, the angle of setting α of change wheel on cylinder of master rotor and auxiliary cylinder according to measurement requirement, change the adhesion F that cylinder provides _μ, realize the attachment coefficient adjusting.In braking procedure, by detecting the information of major-minor drum rotation speed sensor and sensing drum rotation speed sensor, the reflection speed of a motor vehicle and each wheel wheel speed and situation of change realize the detection to the vehicle ABS system performance.

The beneficial effects of the utility model are: the utility model can and detect the wheelbase that requires to regulate automatically master rotor, auxiliary cylinder according to different wheel diameters, thereby can regulate the attachment coefficient between each wheel and the simulated roadway arbitrarily, the adhesion condition of simulating vehicle on various road surfaces.Adopt the utility model, directly occur between cylinder and the wheel surface when skidding behind the wheel lock up, the moment of inertia of cylinder can not append on the wheel, helps guaranteeing accuracy of detection.

Description of drawings

Fig. 1 is the utility model mechanical drive and is electrically connected synoptic diagram;

Fig. 2 is the overall physical construction synoptic diagram of the utility model;

Fig. 3 is the physical construction synoptic diagram of a roller assembly of the utility model.

Among the figure, 1-frame, 2-master rotor, 3-sensing cylinder, 4-main drum shaft bearing, 5-master rotor travel mechanism, 6-sensing cylinder position sensor, 7-support, 8-master rotor position transducer, 9-sensing drum rotation speed sensor, 10-auxiliary cylinder position transducer, 11-auxiliary roller axis bearing, 12-auxiliary cylinder travel mechanism, 13-auxiliary cylinder, cylinder transmission of 14-major-minor and strainer, the 15-base, an assembly that rolls left before the 16-, 17-roll left tin a preceding transmission and a strainer, 18-front roll transmission shaft, the 19-analogue means, transmission and strainer before the right cylinder of 20-, 21-front roll transmission shafts bearing, right roller assembly before the 22-, transmission and strainer in the middle of the right cylinder of 23-, right roller assembly behind the 24-, transmission and strainer behind the right cylinder of 25-, 26-major-minor drum rotation speed sensor, 27-back roll transmission shaft, 28-roll left tin a back transmission and a strainer, 29-back roll transmission shafts bearing, an assembly rolls left behind the 30-, 31-roll left tin a middle transmission and a strainer, the 32-measurement and control unit.

Embodiment

As Fig. 1,2, a kind of vehicle ABS monitor station shown in 3, comprise measurement and control unit 32, base 15, a preceding transmission and strainer 17 roll left, front roll transmission shaft 18, transmission and strainer 20 before the analogue means 19, right cylinder, front roll transmission shafts bearing 21, transmission and strainer 23 in the middle of the right cylinder, transmission and strainer 25 behind the right cylinder, major-minor drum rotation speed sensor 26, back roll transmission shaft 27, a back transmission and strainer 28 roll left, back roll transmission shafts bearing 29, roll left a middle transmission and strainer 31, and structure identical before the assembly 16 that rolls left, preceding right roller assembly 22, after the assembly 30 that rolls left, the right roller assembly 24 in back; Each roller assembly all comprises frame 1, master rotor 2, sensing cylinder 3, main drum shaft bearing 4, master rotor travel mechanism 5, sensing cylinder position sensor 6, support 7, master rotor position transducer 8, sensing drum rotation speed sensor 9, auxiliary cylinder position transducer 10, auxiliary roller axis bearing 11, auxiliary cylinder travel mechanism 12, auxiliary cylinder 13, the transmission of major-minor cylinder and strainer 14, on the frame 1 guide rail is arranged; Master rotor 2 is supported on by main drum shaft bearing 4 on the guide rail of frame 1, and master rotor 2 is connected with auxiliary cylinder 13 by transmission of major-minor cylinder and strainer, and auxiliary cylinder 13 is bearing on the guide rail of frame 1 by auxiliary roller axis bearing 11; Support 7 one ends link to each other with frame 1, and sensing cylinder 3 is bearing on the frame 1 by support 7, and sensing cylinder position sensor 6 is a rotary angle transmitter, are used for measuring the position of sensing cylinder 3 with respect to master rotor 2, reflect detected vehicle tyre radius size; For the rotating speed that detects sensing cylinder 3, inquire into detected wheel of vehicle speed, sensing cylinder 3 one ends are equipped with sensing drum rotation speed sensor 9; Master rotor position transducer 8, auxiliary cylinder position transducer 10 all adopt linear displacement transducer, and master rotor position transducer 8 is used for detecting the position of master rotor 2, and auxiliary cylinder position transducer 10 is used for detecting the position of auxiliary cylinder 13; Master rotor travel mechanism 5, auxiliary cylinder travel mechanism 12 all adopt the motor-driven screw mechanism to realize, the motor housing of master rotor travel mechanism 5 is fixed on the frame, screw mechanism links to each other with main drum shaft bearing 4, the motor housing of auxiliary cylinder travel mechanism 12 is fixed on the frame, screw mechanism links to each other with auxiliary roller axis bearing 11, motor rotation drives screw mechanism and rotates master rotor 2 and auxiliary cylinder 13 are done reciprocating linear motion along the guide rail of frame 1, realizes that the master rotor 2 and the wheelbase of auxiliary cylinder 13 regulate; Roller assembly is fixed on the base 15 by frame 1, front roll transmission shaft 18 1 ends are connected with the main drum shaft of the assembly 16 that before rolls left by roll left a preceding transmission and strainer 17, the other end is connected with the main drum shaft of preceding right roller assembly 22 by transmission before the right cylinder and strainer 20, front roll transmission shaft 18 is fixed on the base 15 by front roll transmission shafts bearing 21, analogue means 19 is installed on the front roll transmission shaft 18, analogue means 19 adopts flywheel, is used for simulating the kinetic energy of vehicle to be measured; The main drum shaft of preceding right roller assembly 22 is connected by the auxiliary roller axis with the right roller assembly 24 in back of transmission and strainer 23 in the middle of the right cylinder; Back roll transmission shaft 27 1 ends by right cylinder after transmission and strainer 25 be connected with the auxiliary roller axis of the right roller assembly 24 in back, the other end by roll left a back transmission and strainer 28 with after the roll left auxiliary roller axis of an assembly 30 be connected, back roll transmission shaft 27 is fixed on the base 15 by back roll transmission shafts bearing 29, and back roll transmission shaft 27 is provided with major-minor drum rotation speed sensor 26; After the roll left auxiliary roller axis of an assembly 30 be connected with the main drum shaft of the assembly 16 that before rolls left by roll left a middle transmission and strainer 31; Sensing cylinder position sensor 6 in measurement and control unit 32 and analogue means 19, major-minor drum rotation speed sensor 26 and each roller assembly, master rotor position transducer 8, auxiliary cylinder position transducer 10, sensing drum rotation speed sensor 9, master rotor travel mechanism 5, auxiliary cylinder travel mechanism 12 are electrically connected, be used for Information Monitoring, require control master rotor travel mechanism 5 and auxiliary cylinder travel mechanism 12 according to detecting, regulate the wheelbase of master rotor 2 and auxiliary cylinder 13, realization is to the simulation of different coefficients of road adhesion, storage and deal with data, the output testing result; After detecting end, measurement and control unit 32 makes master rotor and auxiliary cylinder close mutually by master rotor travel mechanism 5 and auxiliary cylinder travel mechanism 12, is convenient to detected wheel of vehicle and rolls cylinder away from.

Roller shifting of the present utility model mechanism also can adopt the Driven by Hydraulic Cylinder mode, master rotor hydraulic cylinder one end is fixed on the frame, the other end links to each other with main drum shaft bearing 4, auxiliary cylinder hydraulic cylinder one end is fixed on the frame, the other end links to each other with auxiliary roller axis bearing 11, flexible master rotor 2 and the auxiliary cylinder 13 of making by master rotor hydraulic cylinder and auxiliary cylinder hydraulic cylinder done linear reciprocating motion along the guide rail of frame 1, realizes that the wheelbase of master rotor 2 and auxiliary cylinder 13 is regulated.

Analogue means 19 of the present utility model also can adopt flywheel and small electromotor array mode, to enlarge simulation context.

Claims (5)

1. vehicle ABS monitor station, comprise measurement and control unit [32], base [15], a preceding transmission and strainer [17] roll left, front roll transmission shaft [18], analogue means [19], transmission and strainer [20] before the right cylinder, front roll transmission shafts bearing [21], transmission and strainer [23] in the middle of the right cylinder, transmission and strainer [25] behind the right cylinder, major-minor drum rotation speed sensor [26], back roll transmission shaft [27], a back transmission and strainer [28] roll left, back roll transmission shafts bearing [29], a middle transmission and strainer [31] roll left, and structure identical before the assembly [16] that rolls left, preceding right roller assembly [22], after the assembly [30] that rolls left, back right roller assembly [24], it is characterized in that each roller assembly all comprises frame [1], master rotor [2], sensing cylinder [3], main drum shaft bearing [4], master rotor travel mechanism [5], sensing cylinder position sensor [6], support [7], master rotor position transducer [8], sensing drum rotation speed sensor [9], auxiliary cylinder position transducer [10], auxiliary roller axis bearing [11], auxiliary cylinder travel mechanism [12], auxiliary cylinder [13], transmission of major-minor cylinder and strainer [14], frame has guide rail on [1], master rotor [2] is supported on the guide rail of frame [1] by main drum shaft bearing [4], master rotor [2] is connected with auxiliary cylinder [13] by transmission of major-minor cylinder and strainer [14], auxiliary cylinder [13] is bearing on the guide rail of frame [1] by auxiliary roller axis bearing [11], support [7] one ends link to each other with frame [1], sensing cylinder [3] is bearing on the frame [1] by support [7], sensing cylinder position sensor [6] is a rotary angle transmitter, sensing cylinder [3] one ends are equipped with sensing drum rotation speed sensor [9], master rotor position transducer [8], auxiliary cylinder position transducer [10] all adopts linear displacement transducer, master rotor travel mechanism [5] one ends are fixed on the frame [1], the other end links to each other with main drum shaft bearing [4], and auxiliary cylinder travel mechanism [12] one ends are fixed on the frame [1], the other end links to each other with auxiliary roller axis bearing [11]; Roller assembly is fixed on the base [15] by frame [1], front roll transmission shaft [18] one ends are connected with the main drum shaft of the assembly [16] that before rolls left by roll left a preceding transmission and strainer [17], the other end is connected with the main drum shaft of preceding right roller assembly [22] by transmission before the right cylinder and strainer [20], front roll transmission shaft [18] is fixed on the base [15] by front roll transmission shafts bearing [21], analogue means [19] is installed on the front roll transmission shaft [18], the main drum shaft of preceding right roller assembly [22] is connected with the auxiliary roller axis of the right roller assembly in back [24] by transmission and strainer [23] in the middle of the right cylinder, back roll transmission shaft [27] one ends by right cylinder after transmission and strainer [25] be connected with the auxiliary roller axis of the right roller assembly in back [24], the other end by roll left a back transmission and strainer [28] with after the roll left auxiliary roller axis of an assembly [30] be connected, back roll transmission shaft [27] is fixed on the base [15] by back roll transmission shafts bearing [29], back roll transmission shaft [27] is provided with major-minor drum rotation speed sensor [26], after the roll left auxiliary roller axis of an assembly [30] be connected with the main drum shaft of the assembly [16] that before rolls left by roll left a middle transmission and strainer [31]; Sensing cylinder position sensor [6] in measurement and control unit [32] and analogue means [19], major-minor drum rotation speed sensor [26] and each roller assembly, master rotor position transducer [8], auxiliary cylinder position transducer [10], sensing drum rotation speed sensor [9], master rotor travel mechanism [5], auxiliary cylinder travel mechanism [12] are electrically connected.

2. a kind of vehicle ABS monitor station as claimed in claim 1 is characterized in that master rotor travel mechanism [5], auxiliary cylinder travel mechanism [12] all adopt the motor-driven screw mechanism.

3. a kind of vehicle ABS monitor station as claimed in claim 1 is characterized in that master rotor travel mechanism [5], auxiliary cylinder travel mechanism [12] all adopt the Driven by Hydraulic Cylinder mode.

4. a kind of vehicle ABS monitor station as claimed in claim 1 is characterized in that analogue means [19] adopts flywheel.

5. a kind of vehicle ABS monitor station as claimed in claim 1 is characterized in that analogue means [19] adopts flywheel and small electromotor array mode.

Images