CN214277404U

CN214277404U - Device for detecting ABS function of motor vehicle

Info

Publication number: CN214277404U
Application number: CN202023244625.2U
Authority: CN
Inventors: 谢修波; 陈星�; 高雄
Original assignee: Shanghai Motor Vehicle Testing Center Technology Co ltd
Current assignee: Shanghai Motor Vehicle Testing Center Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-09-24
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a device for detecting motor vehicle ABS function, include: disc, flexible axle and flexible axle connector and signal collector, be provided with a plurality of through-holes that are used for installing screw assembly along the circumferencial direction on the disc, the disc is fixed in to wait to detect on the motor vehicle wheel, the one end of flexible axle is passed through flexible axle connector connect in the middle part of disc, signal collector includes encoder and fixed bolster, the encoder install in on the fixed bolster, the fixed bolster is fixed in and waits to detect on the motor vehicle body, the other end of flexible axle with the encoder is connected. The utility model discloses an among the device for detecting motor vehicle ABS function, be different from conventional measuring method, be fixed in the automobile body with the encoder on rather than wheel hub, reduced the wearing and tearing and the spoilage of encoder, owing to avoided losing of encoder pulse, improved measurement accuracy.

Description

Device for detecting ABS function of motor vehicle

Technical Field

The utility model relates to a motor vehicle detects technical field, especially relates to a device for detecting motor vehicle ABS function.

Background

The ABS function of the vehicle is an important parameter of the Braking performance of the vehicle, GB21670-2008 and GB/T13594-2003 stipulate that the test item is a Braking performance index of national motor vehicle forcible inspection, whether an ABS device plays a role in the Braking of the vehicle determines the safety of the Braking performance of the vehicle, and the test is an important passive safety evaluation index of the vehicle and has great significance for the research of vehicle dynamics.

At present, a method for testing the ABS function of a vehicle in the industry adopts a high-precision rotary encoder, the waterproof grade is IP67, the axial load bearing capacity is radial 80N and axial 40N, the encoder is installed on a wheel hub to acquire wheel speed output signals, but the ABS test condition is harsh, the test environment is severe, the vehicle needs to perform high-speed test on roads with different friction coefficients, and data acquisition must be performed in a wading environment. In order to collect the rotating speed of the wheel, the encoder is arranged on the wheel and rotates along with the tire, and the whole encoder and the positioning support are greatly influenced by the vibration, wading and the like of the vehicle in the road due to the defect that the encoder is arranged on the hub of the wheel, so that the equipment is high in abrasion and damage rate. Moreover, due to the fact that the encoder which is conventionally installed on the hub is affected by factors such as road jolt, the phenomenon that pulse signals of the encoder are lost often occurs, and measuring results and accuracy are affected.

Therefore, those skilled in the art have been devoted to developing a device for detecting ABS function of a vehicle to solve the problems of the equipment being easily worn and being easily affected by the environment.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect of prior art, the utility model provides a reduce equipment wear rate, improve the device that is used for detecting motor vehicle ABS function that detects the precision.

In order to achieve the above object, the present invention provides a device for detecting ABS function of a motor vehicle, including:

the disc is provided with a plurality of through holes for mounting the screw rod assemblies along the circumferential direction and is fixed on a wheel of a motor vehicle to be detected;

the flexible shaft is connected with one end of the flexible shaft through the flexible shaft connector;

and the signal collector comprises an encoder and a fixed support, the encoder is installed on the fixed support, the fixed support is fixed on the body of the motor vehicle to be detected, and the other end of the flexible shaft is connected with the encoder.

Furthermore, the flexible shaft comprises a flexible shaft core and a flexible shaft sleeve, the flexible shaft sleeve is sleeved on the flexible shaft core, and one end of the flexible shaft core is connected to the disc through the flexible shaft connector and rotates along with the disc.

Furthermore, the device also comprises a quick-insertion type self-locking joint, and the other end of the flexible shaft is connected with the encoder through the quick-insertion type self-locking joint.

Furthermore, a rotating shaft is arranged in the encoder, the flexible shaft comprises a flexible shaft core, and the flexible shaft core is connected with the rotating shaft and drives the rotating shaft to rotate.

Furthermore, the encoder is arranged on one side of the fixed support, and a sucker assembly is arranged on the other side of the fixed support.

Further, the through holes for mounting the screw rod assembly comprise a plurality of circular through holes and a straight through hole arranged along the radial direction.

The utility model provides a device for detecting motor vehicle ABS function has following technological effect:

1. the utility model discloses an among the device for detecting motor vehicle ABS function, be different from conventional measuring method, fix the encoder on the automobile body rather than wheel hub, reduced the wearing and tearing and the spoilage of encoder, owing to avoided the loss of encoder pulse, improved measurement accuracy;

2. the utility model simplifies the fixed support of the encoder, can meet the requirements of different vehicles with ABS function, and improves the working efficiency; and the device can be widely applied to the detection field.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of the apparatus for detecting ABS function of a motor vehicle according to the present invention;

fig. 2 is a schematic structural diagram of another view angle of a preferred embodiment of the apparatus for detecting ABS function of a motor vehicle according to the present invention.

The reference numbers illustrate: the flexible shaft type ultrasonic sensor comprises a disc 10, a flexible shaft connecting part 20, a flexible shaft connector 210, a flexible shaft sleeve 220, a signal collector 30, an encoder 310, a fixed support 320, a sucker component 330 and a screw component 410.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.

Embodiments of the present invention are described below with reference to the drawings. In the following drawings, like reference numerals are used for like parts. Although the embodiments are described using terms indicating directions such as "upper", "lower", etc., in the present invention, the terms are used herein for convenience of description only and are determined based on exemplary orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are used for descriptive purposes and are not to be construed as limiting.

As shown in fig. 1, the utility model discloses a device for detecting motor vehicle ABS function includes: the device comprises a disc 10, a flexible shaft 20, a flexible shaft connector 210 and a signal collector 30; the disc 10 is provided with a plurality of through holes for mounting screw components along the circumferential direction, the disc 10 is fixed on a motor vehicle wheel to be detected, one end of the flexible shaft 20 is connected to the middle part of the disc 10 through a flexible shaft connector 210, the signal collector 30 comprises an encoder 310 and a fixed support 320, the encoder 310 is mounted on the fixed support 320, and the fixed support 320 is fixed on the motor vehicle body to be detected; the other end of the flexible shaft 20 is connected with an encoder 310. In the device of the utility model, the coder is fixed on the body of the motor vehicle to be tested through the fixed support rather than the wheel hub, so that the abrasion of the coder caused by the rotation of the wheel in the test process can be avoided; meanwhile, the flexible shaft is connected with the disc, the disc is fixed on a wheel of a motor vehicle to be detected and then rotates along with the wheel, the flexible shaft rotates along with the disc, and a rotation speed signal is transmitted to the encoder through the flexible shaft, so that the problem that the wheel rotation speed signal of the sensor arranged on the wheel hub is lost when the wheel encounters rainwater weather or encounters the problems of vibration, jolt and the like is solved.

The utility model discloses in, flexible axle 20 includes flexible axle core (not shown in the figure) and flexible axle sleeve 220, and flexible axle sleeve 220 cover is established on the flexible axle core, and the one end of flexible axle core is passed through flexible axle connector 210 and is connected on disc 10 and rotate along with disc 10. The utility model discloses a device is still including inserting formula auto-lock joint soon (not shown in the figure), and the other end of flexible axle core is connected with encoder 310 through inserting formula auto-lock joint soon, is equipped with the pivot in the encoder 310, and flexible axle core and pivot are connected and are driven the pivot and rotate to will connect in disc 10 and the pivot department in the rotary speed signal transmission to encoder 310 that produces along with disc 10 pivoted flexible axle core, collect the analysis data result by encoder 310 at last. It should be understood that the utility model discloses flexible axle, flexible axle core, flexible axle connector, the formula of inserting auto-lock in the device connect and the encoder is the conventional technique in this field soon, and its specific model selection can be selected according to actual conditions with the mode of setting up, as long as can realize the utility model discloses a rotatory rotational speed signal of transmission wheel, collect and the function of analysis signal data can.

In the device of the present invention, the encoder 310 is disposed on one side of the fixing frame 320, and the other side of the fixing frame 320 is provided with the suction cup assembly 330. In this embodiment, sucking disc subassembly 330 includes powerful suction disc for the encoder can be fixed in on the automobile body of the motor vehicle that awaits measuring more steadily, and further avoid vibrations, jolt the signal loss problem that causes etc.. It should be understood that the utility model discloses the concrete form of setting up and the concrete type of powerful magnetic chuck of fixed bolster and sucking disc subassembly in the device can be selected according to actual conditions, as long as can realize being fixed in the encoder on the automobile body can.

As shown in fig. 2, the disc 10 of the device of the present invention is provided with a plurality of through holes for installing the screw rod assembly 410 along the circumferential direction, and the through holes include a plurality of circular through holes and a straight through hole along the radial direction. The screw assembly 410 comprises a screw and a nut, one end of the screw is provided with a groove arranged along the circumferential direction and used for being clamped with the through hole, and the other end of the screw is fixed on a wheel hub of a motor vehicle to be detected through the nut. It should be understood that the specific arrangement form and number of the through holes on the disc in the device of the present invention can be selected according to actual conditions, as long as the effect of testing the connection of the wheel hubs can be realized and the device is suitable for wheel hubs of different vehicle types; and the concrete structure and size of the screw rod assembly can be selected according to the actual condition and the concrete arrangement of the through hole, so long as the function of fixing the disc on the wheel hub can be realized.

The utility model discloses a device for detecting motor vehicle ABS function, the disc that is fixed in on the wheel hub rotates along with the wheel, the one end of flexible axle is connected and is rotated along with the disc simultaneously on the disc, the other end of flexible axle is connected in the pivot that sets up in the encoder, and drive the pivot and rotate together and carry to the encoder with wheel rotation speed signal, the encoder is fixed in on the automobile body through the fixed bolster, last signal data detects motor vehicle ABS function through the collection and the analysis of encoder. In the device, the encoder is fixed on the vehicle body instead of the wheel hub, so that the abrasion and damage rate of the encoder are reduced, and the measurement precision of the device is improved due to the fact that the loss of the encoder pulse is avoided.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. An apparatus for detecting an ABS function of a motor vehicle, comprising:

2. The device for detecting the ABS function of the motor vehicle as claimed in claim 1, wherein the flexible shaft comprises a flexible shaft core and a flexible shaft sleeve, the flexible shaft sleeve is sleeved on the flexible shaft core, and one end of the flexible shaft core is connected to the disc through the flexible shaft connector and rotates with the disc.

3. The apparatus according to claim 1, further comprising a quick-insertion self-locking joint, wherein the other end of the flexible shaft is connected to the encoder through the quick-insertion self-locking joint.

4. The apparatus according to claim 3, wherein the encoder has a shaft, the flexible shaft includes a flexible shaft core, and the flexible shaft core is connected to the shaft and drives the shaft to rotate.

5. The apparatus for testing ABS functionality of a motor vehicle of claim 1, wherein said encoder is located on one side of said fixed support and a suction cup assembly is located on the other side of said fixed support.

6. The apparatus for testing an ABS function of a motor vehicle according to claim 1, wherein said plurality of through holes for mounting the screw assembly comprise a plurality of circular through holes and a straight through hole arranged in a radial direction.