CN206096315U - A EMC test system for automobile speed sensor - Google Patents
A EMC test system for automobile speed sensor Download PDFInfo
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- CN206096315U CN206096315U CN201621185144.XU CN201621185144U CN206096315U CN 206096315 U CN206096315 U CN 206096315U CN 201621185144 U CN201621185144 U CN 201621185144U CN 206096315 U CN206096315 U CN 206096315U
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- emc test
- speed sensor
- test systems
- air motor
- control system
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Abstract
The utility model relates to a EMC test system for automobile speed sensor. This EMC test system is including the target wheel who is used for simulating the rotating shape attitude under the real vehicle environment, the sensor sectional fixture who is used for driving and control the drive control mechanism of target wheel 's rotation and is used for installing the sensor that awaits measuring. According to according to the automatic silicon steel sheet leveling machine of the transformer, drive control mechanism includes pneumatic motor and the gas circuit that is used for this pneumatic motor is handled and control system. Through using pneumatic motor to replace the motor in traditional EMC test system to drive target wheel, the influence of the electromagnetic interference of motor production to the EMC test itself has been avoided to the accuracy of test result has been ensured.
Description
Technical field
The utility model is related to sensor test field, in particular to the EMC (Electro of automotive speed sensor
Magnetic Compatibility, Electro Magnetic Compatibility) test.
Background technology
With the continuous development of automotive electronic technology, car load factory is to its auto-parts, the electromagnetic compatibility of such as sensor
Property require it is further strict.Crankshaft position sensor, CMPS Camshaft Position Sensor, wheel speed sensors are three big detection speeds on automobile
The sensor of signal, they are respectively by measuring the rotating speed of bent axle, camshaft, wheel judging movement position.These speed are passed
Sensor is the important composition of engine igniting system and ABS (Anti-lock Braking System, anti-lock braking system)
Part, plays an important role to automobile starting with the fuel economy and travel safety of operation.For velocity sensor
Electro Magnetic Compatibility experiment often requires that the performance detected under its working condition, and this requires velocity sensor and simulates bent axle, convex
The target wheel of the rotation of wheel shaft, wheel under real vehicle environment coordinates.
In prior art, typically target wheel is driven to rotate using motor.Because motor is driving target wheel rotation
When the electromagnetic interference that itself is produced can be coupled into experimental situation, this can impact to EMC test results.In order to suppress electronic
The electromagnetic interference that machine itself is produced, a solution is to be sealed on motor with metal shell；However, introduce in experiment
Experiment source can produce refraction on metal shell, and this can equally affect EMC test results.
Utility model content
For above technical problem of the prior art, the utility model proposes a kind of for automotive speed sensor
EMC test systems, it can avoid introducing electromagnetic interference, so that it is guaranteed that the accuracy of test result.
One side of the present utility model is related to a kind of EMC test systems for automotive speed sensor, and it includes using
In simulation real vehicle environment under rotation status target wheel, for drive and control targe wheel rotation drive control mechanism with
And for installing the sensor installs fixture of sensor to be measured, wherein, the drive control mechanism includes air motor and is used for
The gas circuit of the air motor is processed and control system.
Used as a kind of optional implementation, the gas circuit is processed and control system is included by air cleaner, pressure-reducing valve
The pneumatic triple piece assembled with oil sprayer.
Used as a kind of optional implementation, the gas circuit is processed and control system includes that the control air motor is carried out
Rotate forward, the controlling switch of counter-rotating and stopping.
Used as a kind of optional implementation, the gas circuit is processed and control system is included for purification from the pneumatic horse
Up to the oil filter and the swab case being arranged on below the oil filter of the gas discharged.
Used as a kind of optional implementation, the gas circuit is processed and control system includes muffler, and the muffler sets
Put the end of the blast pipe flow through in the gas for discharging from the air motor.
Used as a kind of optional implementation, the sensor installs fixture can be universal joint fixture or fixed folder
Tool.
Used as a kind of optional implementation, the sensor installs fixture is made up of nonmetallic materials.
Used as a kind of optional implementation, the EMC test systems are also included for installing turning for the air motor
Seat is changed, the conversion seat allows the air motor to switch to vertical laying state from horizontal positioned state.
Used as a kind of optional implementation, the air motor and gas circuit process and control system are separately mounted to
On different bearings.
Used as a kind of optional implementation, the EMC test systems also include guard box, and the guard box is used in fortune
Accommodate when defeated the air motor, the gas circuit process and control system, the target wheel, the sensor installs fixture and
Soft air-guide pipe.
According to the utility model, the motor in tradition EMC test systems is replaced to drive mesh by using air motor
Mark wheel, it is to avoid the impact that the electromagnetic interference of motor generation itself is tested EMC, ensures that the accurate of test result
Property.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, constitutes of the present utility model one
Point.In the accompanying drawings：
Fig. 1 is the schematic diagram of the EMC test systems according to the embodiment of the utility model one；
Fig. 2 is the structural representation of the air motor in EMC test systems shown in Fig. 1 and its peripheral member；
Fig. 3 is the structural representation of the main member of the gas circuit process in EMC test systems shown in Fig. 1 and control system；
Fig. 4 is the structural representation of universal joint sensor installs fixture；
Fig. 5 is the schematic diagram of the guard box for EMC test systems shown in Fig. 1.
Specific embodiment
The utility model is described in detail below with reference to the accompanying drawings and with reference to illustrative examples.It should be appreciated that this place
The illustrative examples of description are only used for explaining the utility model, do not constitute to improper restriction of the present utility model.
Fig. 1 schematically shows the configuration structure of the EMC test systems according to the embodiment of the utility model one.The EMC
Test system is applied to automotive speed sensor --- and for example crankshaft position sensor, CMPS Camshaft Position Sensor, wheel speed are passed
Sensor --- carry out emc testing.
As shown in figure 1, EMC test systems mainly include air motor 1, target wheel 2, sensor installs fixture 3 and gas circuit
Process and control system 4.Air motor 1 is used to drive target wheel 2 to rotate, to simulate bent axle, camshaft or wheel in real vehicle ring
Rotation status under border.Sensor (not shown) to be measured is arranged in sensor installs fixture 3, to detect that target wheel 2 exists
Rotating speed under various working conditions.Gas circuit is processed and control system 4 pairs conveying to air motor 1 and discharges from air motor 1
Gas processed, and control start and stop, rotating speed and the direction of rotation of air motor 1.Gas flow direction in system such as arrow
Shown in head.
Fig. 2 schematically shows air motor 1 and its peripheral member --- including target wheel 2 and sensor installs fixture
3 --- structure.Air motor 1 can select that the manophyll chip i.e. M53 of motor is serial, especially TSA companies of Italy
M53R1D, up to 2100r/min, maximum load rotating speed much meets EMC experiments to its maximum non-load speed up to 1050r/min
The requirement of experiment of required 500r/min, and with preferable moment of torsion performance capabilities.M53 series motors have AISI303 not
Rust outer steel shell and end face, compared with electro-motor with lightweight, required installing space it is little, with the presence of combustible material or
The advantages of safe and reliable when using under moist environment.
As depicted in figs. 1 and 2, air motor 1 and sensor installs fixture 3 are installed on the first bearing 5.In pneumatic horse
Up on 1 output shaft, for example, a flange is fixedly connected with by spline etc., target wheel 2 can be connected to the flange by bolt etc.
On rotated with the output shaft with the air motor 1.
In addition, as shown in Fig. 2 being arranged on first in the air motor 1 and sensor installs fixture 3 for being connected to target wheel 2
After on bearing 5, the component for thus constituting can also be arranged on conversion seat 6.Conversion seat 6 may include base 6-1, be fixed on bottom
Four root post 6-2 on seat and the supporting station 6-3 of proper height can be slided up and down and is fixed on along four root post 6-2.By carrying
For conversion seat 6, air motor 1 can switch to as needed the vertical placement shape shown in Fig. 2 from the horizontal positioned state shown in Fig. 1
State.
As shown in figure 1, gas circuit is processed and control system 4 mainly includes pneumatic triple piece 7, controlling switch 8 and oil filter 9.
Fig. 3 schematically shows the structure of the main member of gas circuit process and control system 4.As shown in figure 3, pneumatic triple piece 7, control
System switch 8 and oil filter 9 are arranged on the second bearing 10.Second bearing 10 is the bearings different from the first bearing 5 in Fig. 2,
And it is made up of base plate and two pieces of parallel risers.Pneumatic triple piece 7 is disposed therein the outside of a riser.Controlling switch 8
It is arranged on the outside of another riser.Oil filter 9 is arranged between two pieces of risers.
Pneumatic triple piece 7 fitted together by air cleaner F, pressure-reducing valve R and tri- kinds of source of the gas treatment elements of oil sprayer L and
Formed.Air cleaner F may filter that moisture and impurity in compressed air.Pressure-reducing valve R can reduce the gas from high-pressure air source
The pressure of body simultaneously makes gas pressure in pressure constant state, reduces the damage to hardware such as valve or actuators because of bleed pressure mutation
Wound.Pressure-reducing valve R can be connected with pressure regulating switch and pressure display instrument table.Oil sprayer L can make the lubricating oil atomization of addition with
Gas motion, so as to be lubricated to the part for being inconvenient to apply lubricating oil in system.Oil sprayer L is provided with tank filler sleeve, is used for
Addition lubricating oil.
Controlling switch 8 can be the form of joystick, be rotated forward to control air motor 1, counter-rotating
And stopping.Oil filter 9 is used to filter the air discharged from air motor 1, prevents from polluting environment.Arrange in the lower section of oil filter 9
There is swab case 11.Swab case 11 is for example fixed on the base plate of the second bearing 10 by phase magnet 12 (referring to Fig. 1).In Fig. 3
Not shown in the end of blast pipe muffler 12 (referring to Fig. 1) can be installed, to reduce the exhaust noise of system.
Sensor installs fixture 3 shown in Fig. 2 is fixed clamp.It is using the benefit of this fixed clamp, can
To make special fixture in advance according to the size of sensor to be measured and be installed on the first bearing 5, so EMC is being carried out
Rapidly tested by the position that fixture and sensor need not be adjusted during experiment.
According to another embodiment, universal joint sensor installs fixture can be adopted.Fig. 4 schematically shows one
Plant the structure of universal joint sensor installs fixture 3 '.As shown in figure 4, universal joint sensor installs fixture 3 ' is by multiple (examples
Such as four) universal joint 14 and multiple connecting rods 15 for being connected to universal joint 14 constitute.The one of universal joint sensor installs fixture 3 '
End is connected to the first bearing 5 shown in Fig. 2, and the other end is used to fix sensor to be measured.Due to being provided with multiple universal joints 14,
So position of the sensor to be measured relative to the first bearing 5 can freely be adjusted, thus meet different target wheel and
The harsh installation requirement that sensor with distinctive appearance is proposed.
In order to further avoid introducing electromagnetic interference in experiment, the He of fixed sensor installs fixture 3 shown in Fig. 2
Universal joint fixture 3 ' shown in Fig. 4 can be made up of the plastic material of nonmetallic materials, such as high intensity.
Due to being made up of some according to EMC test systems of the present utility model, carry for convenience and transport and set
Special guard box is counted.According to an embodiment, as is schematically illustrated in figure 5, guard box may include casing 16 and lid 17.Gas
Dynamic motor 1, sensor installs fixture 3 and 3 ', the first bearing 5 and conversion seat 6 and gas circuit are processed and control system 4 may be housed in
In casing 16.Target wheel 2 and soft air-guide pipe may be housed in lid 17.
Compared to traditional EMC test systems, air motor 1 is driving target wheel 2 used in the utility model, and designs
Corresponding gas circuit is processed and control system 4.Thus, it is to avoid the shadow that the electromagnetic interference that motor itself is produced is tested EMC
Ring, ensure that the accuracy of test result.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of EMC test systems for automotive speed sensor, including the rotation status under for simulating real vehicle environment
Target wheel, for drive and control targe wheel rotation drive control mechanism and sensor for installing sensor to be measured
Installs fixture, it is characterised in that the drive control mechanism include air motor and for the air motor gas circuit process and
Control system.
2. EMC test systems for automotive speed sensor according to claim 1, it is characterised in that the gas circuit
Process and control system include the pneumatic triple piece assembled by air cleaner, pressure-reducing valve and oil sprayer.
3. EMC test systems for automotive speed sensor according to claim 1 and 2, it is characterised in that the gas
Road is processed and control system include the control air motor rotated forward, the controlling switch of counter-rotating and stopping.
4. EMC test systems for automotive speed sensor according to claim 1 and 2, it is characterised in that the gas
Road is processed and control system includes the oil filter of the gas discharged from the air motor for purification and is arranged on the oil strain
Swab case below device.
5. EMC test systems for automotive speed sensor according to claim 1 and 2, it is characterised in that the gas
Road is processed and control system includes muffler, and the muffler is arranged on the row that the gas for discharging from the air motor flows through
The end of tracheae.
6. EMC test systems for automotive speed sensor according to claim 1 and 2, it is characterised in that the biography
Sensor installs fixture is universal joint fixture or fixed clamp.
7. EMC test systems for automotive speed sensor according to claim 1 and 2, it is characterised in that the biography
Sensor installs fixture is made up of nonmetallic materials.
8. EMC test systems for automotive speed sensor according to claim 1, it is characterised in that the EMC is surveyed
Test system also includes the conversion seat for installing the air motor, and the conversion seat allows the air motor from horizontal positioned
State switches to vertical laying state.
9. EMC test systems for automotive speed sensor according to claim 1 and 2, it is characterised in that the gas
Dynamic motor and the gas circuit are processed and control system is separately mounted on different bearings.
10. EMC test systems for automotive speed sensor according to claim 1 and 2, it is characterised in that described
EMC test systems also include guard box, the guard box be used for transport when accommodate the air motor, the gas circuit process and
Control system, the target wheel, the sensor installs fixture and soft air-guide pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621185144.XU CN206096315U (en) | 2016-10-28 | 2016-10-28 | A EMC test system for automobile speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621185144.XU CN206096315U (en) | 2016-10-28 | 2016-10-28 | A EMC test system for automobile speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206096315U true CN206096315U (en) | 2017-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621185144.XU Active CN206096315U (en) | 2016-10-28 | 2016-10-28 | A EMC test system for automobile speed sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333456A (en) * | 2018-04-17 | 2018-07-27 | 珠海英搏尔电气股份有限公司 | A kind of EMC suitable for rotary load tests system and its test method |
| CN112710870A (en) * | 2020-12-21 | 2021-04-27 | 成都成发泰达航空科技有限公司 | Performance detection device for APU (auxiliary Power Unit) speed sensor |
-
2016
- 2016-10-28 CN CN201621185144.XU patent/CN206096315U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333456A (en) * | 2018-04-17 | 2018-07-27 | 珠海英搏尔电气股份有限公司 | A kind of EMC suitable for rotary load tests system and its test method |
| CN108333456B (en) * | 2018-04-17 | 2024-03-29 | 珠海英搏尔电气股份有限公司 | EMC test system and method suitable for rotary load |
| CN112710870A (en) * | 2020-12-21 | 2021-04-27 | 成都成发泰达航空科技有限公司 | Performance detection device for APU (auxiliary Power Unit) speed sensor |
| CN112710870B (en) * | 2020-12-21 | 2022-07-08 | 成都成发泰达航空科技有限公司 | Performance detection device for APU (auxiliary Power Unit) speed sensor |
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