CN109738211B - EPS detection device - Google Patents
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- CN109738211B CN109738211B CN201910134760.4A CN201910134760A CN109738211B CN 109738211 B CN109738211 B CN 109738211B CN 201910134760 A CN201910134760 A CN 201910134760A CN 109738211 B CN109738211 B CN 109738211B
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- 238000001514 detection method Methods 0.000 title claims abstract description 64
- 230000005540 biological transmission Effects 0.000 claims abstract description 46
- 238000004088 simulation Methods 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000002452 interceptive effect Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
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- 238000011990 functional testing Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
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Abstract
The utility model discloses an EPS detection device, which is used for supporting and clamping a locking unit of an EPS main body, an input transmission unit used for connecting a rotary driving source with the input end of the EPS main body, an output end simulation resistance unit used for applying rotary load to the output end of the EPS main body, and a detection unit used for detecting operation driving and EPS detection data acquisition, wherein the detection unit is respectively in communication connection with the input transmission unit, the output end simulation resistance unit and the EPS. The utility model is suitable for carrying and detecting the EPS system, and the detection items are relatively comprehensive. The automatic locking of the carrying EPS system can be realized through the locking unit, the linkage mechanism and the interference mechanism can automatically and fixedly connect the input end and the output end of the EPS system, the whole matching automation degree is high, the efficiency of flow detection operation is improved, and meanwhile, the loading matching reliability of the EPS system is ensured. Each unit has free adjustment degree, and satisfies the carrying and detection of different EPS systems.
Description
Technical Field
The utility model relates to an EPS detection device, and belongs to the technical field of EPS detection equipment.
Background
An electric power steering system (Electric Power Steering, abbreviated EPS) is a power steering system that directly relies on an electric motor to provide assist torque, and has many advantages over the conventional hydraulic power steering system HPS (Hydraulic Power Steering). EPS mainly consists of a torque sensor, a vehicle speed sensor, a motor, a reduction mechanism, an Electronic Control Unit (ECU), and the like.
The working stability and the operating characteristic of the electric power steering system are related to the safety of driving and the performance of the whole vehicle, so that the operations of effectively detecting various performances of a steering gear, calibrating a torque sensor and the like are required.
The Chinese patent of the issued publication number CN206945306U discloses a test bench suitable for automobile EPS system hardware, wherein the carrying of the EPS system is complex, the shaft connection and other operations need to be manually carried out, the efficiency is low, and the detection items are not comprehensive enough. The EPS detection apparatus in the prior art basically needs to perform various mating operations manually.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides an EPS detection device aiming at the problems of low automation degree of the traditional EPS detection equipment and complex carrying and assembling of an EPS system.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
EPS detection device, EPS includes EPS main part and helping hand portion, be equipped with torque sensor in the EPS main part, this EPS detection device includes:
the locking unit is used for supporting and clamping the EPS main body;
the input transmission unit is positioned at the top of the EPS main body and comprises a rotary driving source and a linkage mechanism used for linking the output end of the rotary driving source with the input end of the EPS main body;
the output end simulation resistance unit is positioned at the bottom of the EPS main body and used for applying a rotary load to the output end of the EPS main body, and comprises a simulation driving source and an interference mechanism used for interfering the simulation driving source with the output end of the EPS main body;
the detection unit is used for carrying out detection operation driving and EPS detection data acquisition, and the detection unit is respectively in communication connection with the input transmission unit, the output end simulation resistance unit, the power assisting part and the torque sensor.
Preferably, the locking unit is provided with a noise detection sensor for EPS noise test, and the noise detection sensor is in communication connection with the detection unit.
Preferably, the locking unit and the output end simulation resistance unit are relatively fixed, and the input transmission unit is provided with lifting displacement towards the locking unit.
Preferably, the device comprises an identification mechanism for scanning and identifying the EPS, and the identification mechanism is in communication connection with the detection unit.
Preferably, the analog driving source comprises a transmission shaft body connected with the interference mechanism and a rotating motor, and a rotating shaft of the rotating motor is connected with the transmission shaft body through a transmission belt.
Preferably, the analog driving source further comprises a linkage limiting disc arranged on the transmission shaft body, and a limiting disc locking part for locking or releasing the linkage limiting disc.
Preferably, the interference mechanism comprises an interference rotating shaft and an interference rotating shaft interference structure for rotating, locking and releasing the interference rotating shaft, wherein an analog input clamp for clamping the output end of the EPS main body is arranged at the top end of the interference rotating shaft, and the bottom of the interference rotating shaft is fixedly connected with the top of the transmission shaft body.
Preferably, a coupling protector is arranged between the interference rotating shaft and the transmission shaft body.
Preferably, the linkage mechanism comprises a linkage rotating shaft and a linkage rotating shaft interference structure for rotating, locking and releasing the linkage rotating shaft, a driving end clamp matched with the output end of the rotary driving source is arranged at the top end of the linkage rotating shaft, and a linkage clamp for clamping the input end of the EPS main body is arranged at the bottom of the linkage rotating shaft.
Preferably, the device comprises a base frame, the detection unit is fixedly arranged on the base frame, the locking unit, the output end simulation resistance unit and the input transmission unit are detachably arranged on the base frame through quick-mounting plates respectively, and any relative positions of the locking unit, the output end simulation resistance unit and the input transmission unit are adjustable.
The beneficial effects of the utility model are mainly as follows:
1. the method is suitable for carrying and detecting the EPS system, and the detection items are comprehensive.
2. The automatic locking of the carrying EPS system can be realized through the locking unit, the linkage mechanism and the interference mechanism can automatically and fixedly connect the input end and the output end of the EPS system, the whole matching automation degree is high, the efficiency of flow detection operation is improved, and meanwhile, the loading matching reliability of the EPS system is ensured.
3. Each unit has free adjustment degree, and satisfies the carrying and detection of different EPS systems.
4. The detection device is highly integrated.
Drawings
Fig. 1 is a schematic cross-sectional view of an EPS detecting apparatus of the utility model.
Fig. 2 is a schematic diagram of an operation area of the EPS detecting device of the utility model.
Fig. 3 is an overall schematic diagram of the EPS detecting apparatus of the utility model.
Fig. 4 is a schematic structural view of a locking unit according to the present utility model.
Fig. 5 is a schematic diagram of the structure of the analog driving source in the present utility model.
Figure 6 is a cross-sectional view of an interference mechanism in accordance with the present utility model.
Fig. 7 is a cross-sectional view of the linkage mechanism of the present utility model.
Fig. 8 is a schematic diagram of the EPS system according to the utility model.
Detailed Description
The utility model provides an EPS detection device. The following detailed description of the present utility model is provided in connection with the accompanying drawings, so as to facilitate understanding and grasping thereof.
The EPS detection device, as shown in fig. 8, includes an EPS main body 11 and a booster 12, and a torque sensor 13 is provided on the EPS main body 11.
As shown in fig. 1 to 7, the EPS detecting device includes a locking unit 2, an input transmission unit 3, an output end simulation resistance unit 4, and a detecting unit 5.
Wherein the locking unit 2 is used for supporting and clamping the EPS body 11.
The input transmission unit 3 is located at the top of the EPS body 11, and the input transmission unit 3 includes a rotation driving source 31, and a link mechanism 32 for linking an output end of the rotation driving source 31 with an input end of the EPS body 11.
The output-side simulation resistance unit 4 is located at the bottom of the EPS body 11 for applying a rotational load to the output side of the EPS body 11, and the output-side simulation resistance unit 4 includes a simulation drive source 41 and an interference mechanism 42 for simulating interference of the drive source 41 with the output side of the EPS body 11.
The detection unit 5 is used for performing detection operation driving and EPS detection data acquisition, and the detection unit 5 is respectively in communication connection with the locking unit 2, the input transmission unit 3, the output end simulation resistance unit 4, the power assisting part 12 and the torque sensor 13.
Specific detection items of the EPS detection device are described in detail:
first, the positive rotation torque test comprises a boosting test and a non-boosting test.
Under the state that the power assisting part 12 is started and not started, the input end of the EPS system 1 is driven to rotate forward and backward by a certain angle through the input transmission unit 3, an input moment-rotation angle curve is measured and drawn, and a moment index is calculated and judged.
And secondly, a reverse rotation moment test comprises a booster test and a non-booster test.
Under the state that the power assisting part 12 is started and not started, the output end simulation resistance unit 4 drives the output end of the EPS system 1 to rotate forward and backward by a certain angle, an output moment-rotation angle curve is measured and drawn, and a moment index is calculated and judged.
Third, torque sensor signal characteristics test.
The output end of the EPS system 1 is locked through the interference mechanism, the input end of the EPS system is rotated at a constant speed in the forward and reverse directions until the input torque is 15Nm, and the main/auxiliary signals of the torque sensor 13 are recorded. And forming a sensor torque signal curve of input torque-sensor main/auxiliary signals, and calculating various indexes.
Fourth, input torque-output torque/sink current/motor current characteristics test.
And locking the output end of the EPS system 1 through the interference mechanism, rotating the input end of the EPS system at a constant speed in the forward and reverse directions until the input torque reaches 15Nm, recording the relation between the input torque and the output torque, the absorption current and the motor working current, and drawing a corresponding curve and calculating an index.
Fifth, functional test.
And applying a certain load to the output end of the EPS system through the output end simulation resistance unit 4, driving the input end to rotate at a certain speed in two directions for a certain angle respectively, recording a relation curve between the input torque and the input rotation angle under each vehicle speed and load, and calculating an index.
In one embodiment, the locking unit 2 is provided with a noise detection sensor 6 for EPS noise test, and the noise detection sensor 6 is connected to the detection unit 5 in communication. The noise detection sensor 6 includes a first monitoring point located near the housing portion where the EPS body is connected to the assist portion 12, a second monitoring point located near the motor of the assist portion, and a third monitoring point located near the EPS body.
Noise testing can be achieved.
The output end simulation resistance unit 4 applies a certain load to the output end of the EPS system, drives the input end to rotate a certain angle in two directions at a certain speed respectively, measures noise at a motor, a shell and a pipe column of the EPS system, measures calculation indexes, and draws a noise curve so as to check an internal fault state.
In one embodiment, the locking unit 2 and the output end simulation resistance unit 4 are fixed relatively, and the input transmission unit 3 has a lifting displacement towards the locking unit 2.
Namely, while the EPS system 1 is mounted and fixed on the locking unit 2, the output end of the EPS system 1 is matched with the output end simulation resistance unit 4, and then is matched with the input end of the EPS system 1 through the self-lifting displacement of the input transmission unit 3.
So be convenient for EPS detection device and EPS system 1 match and connect, high-efficient reliable stable.
In a specific embodiment, the EPS detecting device further includes an identifying mechanism 7 for scanning and identifying the EPS, and the identifying mechanism 7 is in communication connection with the detecting unit 5.
Specifically, each EPS has an independent identifier, and the identifier can be identified by the identifying means 7, so that on the one hand, matching correspondence of the software is detected, and on the other hand, matching detection is realized, and detection recording operation of the corresponding identifier can be performed. The selection of the matching detection item is not needed to be manually carried out.
In one embodiment, the fitting structure of the locking unit 2 and the EPS system is described in detail.
As shown in fig. 4, a transmission housing 14 is arranged between the EPS body 11 and the booster 12, mounting legs 15 are arranged beside the bottom of the transmission housing 14, a mounting bracket 16 is arranged on the EPS body 11, and the mounting bracket 16 is provided with two extending parts which are separately arranged. The mounting bracket 16 further has a loading portion for loading the torque sensor 13.
The locking unit 2 includes leg jigs 21 for clamping the mounting legs 15, and outer extension jigs 22 corresponding to the outer extension portions one by one. The three-point clamping of the EPS system can be realized.
More specifically, the extension portion holder 22 includes a support portion that abuts against the extension portion, and a telescopic clamping end that is telescopically displaced toward the support portion, and the extension portion is tightly fitted to the telescopic clamping end through the support portion.
And the mounting support leg 15 is provided with a tubular through hole, and two clamping ends of the support leg clamp 21 are respectively provided with a bulge matched with the tubular through hole, so that the clamping operation of the mounting support leg 15 is more stable.
In one embodiment, as shown in fig. 5, the analog driving source 41 includes a transmission shaft 411 connected to the interference mechanism 42, and a rotating motor 412, and a rotation shaft of the rotating motor 412 is connected to the transmission shaft 411 through a transmission belt 413.
Power is transmitted to the interference mechanism 42 via the transmission belt 413 by the rotating motor 412.
More preferably, the analog driving source 41 is provided with at least one association mechanism 414 for locking or releasing the driving shaft 411.
The association mechanism 414 includes a linkage limiting disc connected to the transmission shaft 411, and a limiting disc locking portion for radial displacement toward the limiting disc, and can implement rotation locking and releasing operations of the transmission shaft 411 through the limiting disc locking portion and the linkage limiting disc.
In a specific embodiment, as shown in fig. 6, the interference mechanism 42 includes an interference rotating shaft 421 and an interference rotating shaft interference structure 422 for rotationally locking and releasing the interference rotating shaft 421, the top end of the interference rotating shaft 421 is provided with an analog input clamp 4211 for clamping the output end of the EPS body 11, and the bottom of the interference rotating shaft 421 is fixedly connected with the top of the transmission shaft 411.
Specifically, the interference mechanism 42 is a transmission structure that transmits analog output as an analog drive source 41 and an output end of the EPS body 11, and can lock the output end of the EPS body 11.
In a preferred embodiment, the interference structure 422 includes a locking ring disposed on the interference shaft 421 and a lifting interference seat for axially interfering with the locking ring, and locking the interference shaft 421 can be achieved by cooperation between the locking ring and the lifting interference seat.
The locking ring and the lifting interference seat are preferably in conical surface fit.
Further, the locking ring may be in a sliding fit manner, and is realized by another fixing ring and an elastic member, specifically, an elastic member sleeved on the interference rotating shaft 421 is provided between the locking ring and the fixing ring, and the elastic member provides a lifting displacement elastic stroke of the locking ring, and can limit a circumferential relative movement between the locking ring and the fixing ring, so as to realize a locking function in a compression joint state.
In a more preferred embodiment, the analog input clamp 4211 is provided with a clamp core and a clamp sleeve, the clamp core is fixedly connected with the interference rotating shaft 421, the clamp sleeve is connected with the locking ring, the clamp sleeve drives the clamp core to be separated when the lifting interference seat is pressed down to be interfered and locked with the locking ring, and conversely, the clamp sleeve drives the clamp core to clamp the output end of the EPS main body when the lifting interference seat is lifted up to be separated from the locking ring, and the interference rotating shaft 421 is in a free state.
In order to protect the interference rotating shaft and the transmission shaft body, a coupling protector is arranged between the interference rotating shaft and the transmission shaft body.
In a specific embodiment, as shown in fig. 7, the linkage mechanism 32 includes a linkage rotating shaft 321, and a linkage rotating shaft interference structure 322 for rotationally locking and releasing the linkage rotating shaft 321, a driving end clamp 3211 matched with an output end of the rotation driving source 31 is disposed at a top end of the linkage rotating shaft 321, and a linkage clamp 3212 for clamping an input end of the EPS main body 11 is disposed at a bottom of the linkage rotating shaft 321.
Further, the linkage rotating shaft interference structure 322 includes a locking ring body disposed on the linkage rotating shaft 321, and a lifting interference seat body for axially interfering with the locking ring body, and locking of the linkage rotating shaft 321 can be achieved through cooperation between the locking ring body and the lifting interference seat body. The locking ring body and the lifting interference seat body are preferably in conical surface fit.
More precisely and optimally, the locking ring body can be in a sliding fit connection mode and is realized through the other fixed ring body and the elastic piece, in particular, the elastic piece sleeved on the linkage rotating shaft 321 is arranged between the locking ring body and the fixed ring body, the elastic piece provides the lifting displacement elastic stroke of the locking ring body on one hand, and on the other hand, the circumferential relative movement between the locking ring body and the fixed ring body can be limited, so that the locking function in the compression joint state is realized.
More specifically, the linkage clamp 3212 includes a core and a jacket, the core is fixedly connected to the linkage shaft 321, the jacket is connected to the locking ring, the jacket drives the core to separate when the lifting interference seat ascends and the locking ring body is interfered and locked, whereas the jacket drives the core to clamp the input end of the EPS body when the lifting interference seat descends and the locking ring body is separated, and the linkage shaft 321 is in a free state.
The automatic clamping of the input end and the output end of the EPS main body 11 can be realized through the interference mechanism 42 and the linkage mechanism 32, and the assembly is efficient and stable.
Finally, the device comprises a base frame 8, the detection unit 5 is fixedly arranged on the base frame 8, the locking unit 2, the output end simulation resistance unit 4 and the input transmission unit 3 are detachably arranged on the base frame 8 through quick-mounting plates respectively, and any relative positions of the locking unit, the output end simulation resistance unit and the input transmission unit are adjustable. Different matching positions can be mounted according to the specification of the electric power steering system.
Through the above description, the utility model is suitable for carrying out carrying and detecting operation on the EPS system, and the detection items are relatively comprehensive. The automatic locking of the carrying EPS system can be realized through the locking unit, the linkage mechanism and the interference mechanism can automatically and fixedly connect the input end and the output end of the EPS system, the whole matching automation degree is high, the efficiency of flow detection operation is improved, and meanwhile, the loading matching reliability of the EPS system is ensured. Each unit has free adjustment degree, and satisfies the carrying and detection of different EPS systems. The detection device is highly integrated.
While the foregoing has been described in terms of embodiments of the present utility model, it will be appreciated that the embodiments of the utility model are not limited by the foregoing description, but rather, all embodiments of the utility model may be modified in structure, method or function by one skilled in the art to incorporate the teachings of this utility model, as expressed in terms of equivalent or equivalent embodiments, without departing from the scope of the utility model.
Claims (5)
- EPS detection device, EPS includes EPS main part and helping hand portion, be equipped with torque sensor in the EPS main part, its characterized in that includes:the locking unit is used for supporting and clamping the EPS main body;the input transmission unit is positioned at the top of the EPS main body and comprises a rotary driving source and a linkage mechanism used for linking the output end of the rotary driving source with the input end of the EPS main body;the output end simulation resistance unit is positioned at the bottom of the EPS main body and used for applying a rotary load to the output end of the EPS main body, and comprises a simulation driving source and an interference mechanism used for interfering the simulation driving source with the output end of the EPS main body;the detection unit is used for carrying out detection operation driving and EPS detection data acquisition, and is respectively in communication connection with the locking unit, the input transmission unit, the output end simulation resistance unit, the power assisting part and the torque sensor;the simulation driving source comprises a transmission shaft body connected with the interference mechanism and a rotating motor, and a rotating shaft of the rotating motor is connected with the transmission shaft body through a transmission belt;the simulation driving source also comprises a linkage limiting disc arranged on the transmission shaft body and a limiting disc locking part used for locking or releasing the linkage limiting disc;the interference mechanism comprises an interference rotating shaft and an interference rotating shaft interference structure for rotating, locking and releasing the interference rotating shaft, wherein the top end of the interference rotating shaft is provided with an analog input clamp for clamping the output end of the EPS main body, the bottom of the interference rotating shaft is fixedly connected with the top of the transmission shaft body,the interference mechanism is used as a transmission structure for transmitting the analog driving source and the output end of the EPS main body, can transmit analog output and can realize locking of the output end of the EPS main body;the locking of the interference rotating shaft is realized through the matching between the locking ring and the lifting interference seat, and the locking ring and the lifting interference seat are matched with conical surfaces;a coupling protector is arranged between the interference rotating shaft and the transmission shaft body;the linkage mechanism comprises a linkage rotating shaft and a linkage rotating shaft interference structure for rotating, locking and releasing the linkage rotating shaft, a driving end clamp matched and connected with the output end of the rotation driving source is arranged at the top end of the linkage rotating shaft, and a linkage clamp for clamping the input end of the EPS main body is arranged at the bottom of the linkage rotating shaft;the locking ring adopts a sliding fit mode, and is realized through the other fixing ring and the elastic piece, the elastic piece sleeved on the interference rotating shaft is arranged between the locking ring and the fixing ring, the elastic piece provides lifting displacement elastic travel of the locking ring, and the circumferential relative movement between the locking ring and the fixing ring can be limited on the other hand, so that the locking function in a compression joint state is realized;the analog input clamp is provided with a clamping core and a clamping sleeve, the clamping core is fixedly connected with the interference rotating shaft, the clamping sleeve is connected with the locking ring, the clamping sleeve drives the clamping core to be separated when the lifting interference seat is pressed down to be in interference locking with the locking ring, otherwise, the clamping sleeve drives the clamping core to clamp the output end of the EPS main body when the lifting interference seat is lifted up to be separated from the locking ring, and the interference rotating shaft is in a free state.
- 2. The EPS detection apparatus according to claim 1, characterized in that:the locking unit is provided with a noise detection sensor for EPS noise test, and the noise detection sensor is communicated with the detection unit.
- 3. The EPS detection apparatus according to claim 1, characterized in that:the locking unit and the output end simulation resistance unit are relatively fixed, and the input transmission unit is provided with lifting displacement towards the locking unit.
- 4. The EPS detection apparatus according to claim 1, characterized in that:the detection device comprises an identification mechanism for scanning and identifying the EPS, and the identification mechanism is communicated with the detection unit.
- 5. The EPS detection apparatus according to claim 1, characterized in that:the device comprises a base frame, wherein the detection unit is fixedly arranged on the base frame, the locking unit, the output end simulation resistance unit and the input transmission unit are detachably arranged on the base frame through quick-mounting plates respectively, and any relative positions of the locking unit, the output end simulation resistance unit and the input transmission unit are adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910134760.4A CN109738211B (en) | 2019-02-24 | 2019-02-24 | EPS detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910134760.4A CN109738211B (en) | 2019-02-24 | 2019-02-24 | EPS detection device |
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| CN109738211A CN109738211A (en) | 2019-05-10 |
| CN109738211B true CN109738211B (en) | 2024-04-16 |
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| CN201910134760.4A Active CN109738211B (en) | 2019-02-24 | 2019-02-24 | EPS detection device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110346127B (en) * | 2019-07-11 | 2024-12-27 | 吉林瑞铭机电设备有限公司 | EPS no-load test and sensor calibration machine |
| CN110319967A (en) * | 2019-07-11 | 2019-10-11 | 吉林瑞铭机电设备有限公司 | A kind of EPS handle power automatic detecting machine |
| CN111123898B (en) * | 2020-01-19 | 2023-02-24 | 斯比泰电子（嘉兴）有限公司 | Electric automobile ECU rapid detection equipment |
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Address after: 215000 Changyang street, Suzhou Industrial Park, Jiangsu, China, No. 415, No. Applicant after: Suzhou Erdifei Intelligent Robot Co.,Ltd. Address before: 215000 Changyang street, Suzhou Industrial Park, Jiangsu, China, No. 415, No. Applicant before: SUZHOU MAIBU AUTOMATION SYSTEM Co.,Ltd. |
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