CN108007696A - Parking brake testboard, particularly double drag-line EPB testboard bays - Google Patents
Parking brake testboard, particularly double drag-line EPB testboard bays Download PDFInfo
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- CN108007696A CN108007696A CN201711249658.6A CN201711249658A CN108007696A CN 108007696 A CN108007696 A CN 108007696A CN 201711249658 A CN201711249658 A CN 201711249658A CN 108007696 A CN108007696 A CN 108007696A
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- force snesor
- testboard
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- 238000012360 testing method Methods 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 238000004088 simulation Methods 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 230000003068 static effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/28—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for testing brakes
Abstract
The present invention provides a kind of double drag-line EPB testboard bays, it can be used for when pulling force, drag-line efficiency, the EPB that the drag-line of the static lower EPB of test is subject to work to moment of torsion caused by brake drum, and can be by brake drum moment of torsion come the parking ability of EPB after testing friction pad wear.The invention particularly relates to a kind of double drag-line EPB testboard bays.EPB testboard bays according to the invention include rack base, transmission shaft, at least two motors, two retarders, two torque sensors, two force snesors.Motor axis connection reducing gear, the output axis connection torque sensor of reducing gear.During test, brake drum is connected on the other end of torque sensor, and force snesor configuration detects stress of the drag-line in braking procedure on drag-line.
Description
Technical field
The present invention relates to a kind of testboard bay of parking brake, is particularly a kind of drag-line EPB testboard bays, especially
Double drag-line EPB testboard bays.
Background technology
Electronic brake system EPB is widely used for motor vehicle, and what is come into being is EPB detection devices.
ZL201320298370.9 Chinese utility model patents disclose a kind of integrated type electrical parking braking system
Dynamic brake performance testing device.As shown in Figure 1, the dynamic brake performance test dress of this integrated type electrical parking braking system
Put including brake support frame 1, the brake with EPB is further included ring flange 3, shaft coupling 4, passed on the stent 1 during test
Sensor bearing 5, torque speed sensor 6, retarder 8, hydraulic motor 10, hydraulic control panel 12, rack base 13.Brake branch
Frame 1 is fixed in rack base 13 by lower margin.Mounting flange 3 in the brake disc of brake with EPB, and pass through shaft coupling
4 are connected with torque speed sensor 6, and the other end is connected by shaft coupling 4 with hydraulic motor 10.Retarder 8 is fixed on retarder
On stent.Hydraulic motor 10 is fixed on hydraulic motor stent, and rear end is connected with fluid pressure line 11, and the other end of pipeline is connected to
Hydraulic control panel 12.Brake support frame 1, sensor support base 5, deceleration machine support, hydraulic motor stent, hydraulic control panel 12 by
Lower margin is fixed in rack base 13, to keep the height of each part centerline consistent with horizontal direction, and by each component it
Between shaft coupling 4 make up less rigging error.
ZL201320245113.9 Chinese utility model patents disclose a kind of emulation test system for EPB.Such as
Shown in Fig. 2, which includes a motor and its shaft.By brake disc in shaft.Motor imitates axle rotation, and with brake
Clamp and brake block clamping brake disc, brake force is measured with sensor.The emulation test system can only test the brake of caliper brake EPB
The clamping force of car piece displacement distance and chuck, this is for practical far from enough.Moreover, in terms of the parts relationship shown in Fig. 2, emulation
Degree it is also insufficient.
Both EPB test devices are all used for the dynamic property for testing EPB.And EPB is parking device, its static properties is surveyed
Examination is more with practical value.In addition, both EPB test device neither ones are to be used to test drag-line EPB, and drag-line
EPB has certain occupation rate of market.
The content of the invention
The present invention is intended to provide a kind of parking brake testboard bay, particularly a kind of EPB testboard bays, it can be used for
To moment of torsion caused by brake drum when pulling force, drag-line efficiency, the EPB that the drag-line of the static lower EPB of test is subject to work, and can pass through
Brake drum moment of torsion carrys out the parking ability of EPB after testing friction pad wear.The invention particularly relates to a kind of double drag-line EPB testboards
Frame.
EPB testboard bays according to the invention include rack base, at least an at least transmission shaft, an axis rotation driving
Source, at least one retarder, at least one torque sensor, at least one force snesor.Axis rotary driving source connects gear reducer
Structure, the output axis connection torque sensor of reducing gear.During test, brake drum is connected on the other end of torque sensor, power
Sensor configuration detects stress of the drag-line in braking procedure on drag-line.
Preferably, an at least axis rotary driving source is motor, such as a motor, can also select two electricity
Machine, specific number of units is depending on specific test event and test selection scheme.As a kind of alternative, the axis rotary driving source
Internal combustion engine can be selected, such as gasoline engine or diesel engine are to imitate real vehicle operation conditions.
In any of the above-described scheme preferably, at least one torque sensor is two torque sensors, respectively
One be configured in two braking brake disks of test.
In any of the above-described scheme preferably, at least one force snesor is four force snesors, during test, often
Two one group, the power on the drag-line of EPB modules both sides is tested respectively.For example, during test, a configuration in described one group from
More nearby, another configuration is from brake chassis more nearby by EPB.
In any of the above-described scheme preferably, a prompting device is further included, it is used to prompt brake drum and connecting flange phase
For brake chassis, there occurs movement.
In view of environment（Such as temperature or humidity）, in any of the above-described scheme preferably, set an environmental simulation to seal
Closed chamber, such as a closed chamber, it can close whole rack, can also only close tested component and test component.Closing
Interior is furnished with such as temperature control and/or humidity adjustment unit, and the weather omited or vehicle are disliked in summer long-time so as to imitate
Operation back axle is in the vehicle condition of extreme high heat, it might even be possible in the closed interior environment and vehicle condition for forming ice and snow day so that energy
Enough test out the data under extreme vehicle condition.
Testboard bay according to the invention can be used for test dynamic data, i.e. after being braked in vehicle high-speed operating
Data under parked state.For this reason, axis rotary driving source can be vehicle motor.But it is too big in view of engine noise, and
And rack excessively bulky complex can be made, also it is intended to use motor.However, motor driving still has difference with engine driving
's.Experience have shown that for parking moment of torsion and drag-line power, after engine-driven axis parking with motor-driven axis
Brake force and moment of torsion have certain consistent relationship after parking.In consideration of it, can be equipped with a converter on testboard bay, it can be with
Driving source is converted into internal combustion engine for the Cable forces and moment of torsion measured under the operating mode of motor（Such as gasoline engine）Value under operating mode.
This converter industry personnel can be made without creative work, its data relied on can be obtained by limited trials
, the present invention is not intended to a contribution to the prior art as the present invention.
Very big transverse pressure is often born in view of actual axle, axle has that the situation of certain amount of deflection is relatively more in practice,
The mechanism for making axis produce certain amount of deflection can also be added in any of the above-described such scheme so that the stress of axis is more like actual car
Condition.Axis is produced certain amount of deflection temporarily and belong to the prior art, those skilled in the art are easily achieved, and this will not be repeated here, as long as shape
Into amount of deflection close to actual vehicle condition.Cross force can also be applied to axis, to imitate active force of the vehicle to axis.Particularly,
The power relative to vertical direction at an angle can be preferably formed, to imitate the situation of vehicle on the slope.Axis is put on
The power of vertical direction at an angle, this is also to be easily achieved in the prior art, is not also repeated herein.
In any of the above-described scheme preferably, the transmission shaft is arranged for ease of replacement.In this way, can be with during test
Corresponding axis is selected according to targeted vehicle, no matter axis size or material can closer actual vehicle, tested
The reliability of the numerical value gone out can greatly improve.
Double drag-line EPB testboard bays according to the invention are simple in structure, easy to operate, and simulation real vehicle can be effectively to double
Drag-line EPB parking performances are tested, its space occupied compared with real steering vectors is much smaller.
Brief description of the drawings
Fig. 1 is a kind of EPB test devices in the prior art.
Fig. 2 is another kind EPB test devices in the prior art.
Fig. 3 is the front view of an embodiment of double drag-line EPB testboard bays according to the invention.
Fig. 4 is the bottom view of embodiment illustrated in fig. 3.
Fig. 5 is an axonometric drawing of embodiment illustrated in fig. 3.
Fig. 6 shows one with the embodiment test braking torque state shown in Fig. 3-5 of testboard bay according to the invention
The front view of kind scheme.
Fig. 7 is the bottom view under state shown in Fig. 6.
Fig. 8 is the axonometric drawing under state shown in Fig. 6.
Fig. 9 is the embodiment as in Figure 3-5 of double drag-line EPB testboard bays according to the invention in a kind of test mode
Under schematic diagram.
Figure 10 is a kind of another embodiment showing under test mode of double drag-line EPB testboard bays according to the invention
It is intended to.
Figure 11 is to test drag-line stress in the EPB courses of work using double drag-line EPB testboard bays according to the invention
Schematic diagram.
Figure 12 is the stress in the EPB courses of work carries out to drag-line with double drag-line EPB testboard bays according to the invention
The schematic diagram of another program of test.
Embodiment
Fig. 3-5 shows an embodiment of double drag-line EPB testboard bays according to the invention.As shown in the figure, in this reality
Apply in example, double drag-line EPB testboard bays S according to the invention have a rack base 13.13 lateral center of rack base
A motor E and the retarder 8 being connected with motor E are equipped with position.Laterally upper left and right respectively connects one to retarder 8 with the kind of drive
Shaft coupling 41 and 42.Shaft coupling 41 and 42 respectively connects a torque sensor 61 and 62.The each connection again of torque sensor 61 and 62
A connecting flange 31 and 32.In general, 41 and 42,61 and 62,31 and 32 be subject to the center line of motor E and retarder 8
It is symmetrical arranged.
Fig. 6-8 is illustrated that to be tested with the embodiment as in Figure 3-5 of double drag-line EPB testboard bays according to the invention
A kind of structure chart of testing scheme of braking torque.As shown in the figure, brake drum B1 and B2 are connected to torque sensor 61 and 62
On, brake chassis A1 and A2 are fixed in rack base 13.
Fig. 9 is illustrated that, with double drag-line EPB testboard bays S of the embodiment shown by Fig. 3-5 test at the same time moment of torsion and
Drag-line power scheme.As shown in figure 9, in addition to the left half of arrangements of Fig. 6-8, left side drag-line K is also connected to brake bottom
On disk A1, and it is set to bend to diagramatic curve, right side drag-line K is connected on force snesor M, to ensure that two side force are unified, by power
Sensor M is installed on using the midpoint of EPB as on the symmetrical fixed seat L of symmetric points.In this way, when driving motor to rotate, moment of torsion passes
The value measured on sensor is exactly braking torque, and the power measured on force snesor M is the stress of drag-line, because of EPB left and right ends pulling force
It is equal, therefore force snesor M numerical value is active force of the left side drag-line to brake chassis.
Figure 10 is shown tests drag-line in the EPB courses of work using double drag-line EPB testboard bays according to the invention
One simple scheme of stress.Force snesor F1 and force snesor F2 horizontal directions are arranged in EPB（H）Both sides, interception two are small
Wherein a bit of drag-line both ends are fixed on power sensing F1 and EPB by section drag-line K（H）Left side, another segment drag-line both ends are fixed on
Power senses F2 and EPB（H）Right side, makes EPB after the completion of arrangement（H）Work, read force snesor F1 is with force snesor F2 registrations
800N, records numerical value.
Figure 11 be with double drag-line EPB testboard bays according to the invention to stress of the drag-line in the EPB courses of work into
Another program of row test.For convenience of test, retain force snesor F1 and power biography that the test that above-mentioned combination Figure 11 is illustrated uses
Sensor F2.Two force snesors G1 and G2 are chosen again, by force snesor G1 and force snesor G2 with EPB（H）It is right centered on position
Title is arranged on rack, simulates real vehicle, such as two force snesor G1 and G2 horizontal direction spacing are 128cm, it is in vertical direction
On a height of 45cm in distance EPB bottom surfaces.Choose the drag-line of two equal lengths again, left side drag-line both ends be fixed on power sensing G1 and
EPB（H）Left side, the right drag-line both ends are fixed on power sensing G2 and EPB（H）Right side, while drag-line is simulated real vehicle curved arrangement.
Make EPB after the completion of arrangement（H）Work, it is 780N to read force snesor G1 with force snesor G2 registrations, records numerical value.It is in addition, logical
Cross and learn EPB above in conjunction with Figure 11 method tests illustrated（H）Pulling force is 800N, thus can calculate drag-line is imitated when under front curve
Rate is 780/800=97.5%.
One embodiment of the parking ability of the testboard bay test EPB of Figure 12 descriptions present invention.Similar to tying above
The drag-line K and EPB (H) closed in the testing scheme of the descriptions of Figure 10 and 11 is arranged, keeps drag-line K degree of crook to be described with combining Figure 11
Scheme it is consistent, left side drag-line one end is sticked into brake chassis A1 card slots, the other end still connects EPB（H）Left side, it is right
Side drag-line one end is sticked into brake chassis A2 card slots, and the other end still connects EPB（H）Right side, two brake chassis are fixed on platform
On frame base 13, and spacing is 128cm.Then as shown in figure 8, installing the brake drum of band connection flange successively（B1、B2）, moment of torsion
Sensor（C1、C2）, shaft coupling（D1、D2）, retarder 8 and motor E, the brake drum is with connecting flange by screw bolt and nut company
Connect.After the completion of arrangement, make EPB（H）Work simulation real vehicle carries out parking, and then motor E is through retarder 8 and shaft coupling（41、42）
Moment of torsion is produced to brake drum (B1, B2) and connecting flange respectively.This torque value is adjustable, generally by early period according to different cars
Parameter calculate the moment of torsion of parking under theory, then specific torque value is checked by torque sensor (61,62).Then
Whether observation brake drum (B1, B2) and connecting flange rotate to check the parking ability of EPB under the size moment of torsion.Measure
Work as torque sensor（61、62）Registration when being 660N*m, brake drum and connecting flange rotate, and record numerical value.Can also
A prompting device is added to replace manually checking, it just sends what people can perceive in brake drum and connecting flange upon occurring rotating
Signal, such as shine and/or occur.Such as a commercially available photosensitive alarm or an electromagnetism alarm can be selected.This
A little alarms are commercially available.The present invention is not intended to do any improvement to these alarms, simply applies it to according to the invention
On EPB testboard bays, particularly double drag-line EPB testboard bays.
Tested as follows referring still to Figure 12, before test, first simulate real vehicle friction disc wear（Increase brake drum internal diameter or
Friction plate outside diameter is reduced）, tested according to the arrangement shown in Figure 12, a test method substantially as above segment description, measures
Work as torque sensor（61、62）When registration is 640N*m, brake drum and connecting flange rotate, and record numerical value.Certain vehicle is joined
Number is weight 900Kg, tire radius 250mm, calculates to obtain the car and be parked in braking torque needed for single wheel on 30% slope and is
317N*m, therefore judge that EPB brakings are still valid when friction plate occurs to wear under the degree.
Finally it should be noted that each embodiment should not be construed as limitation of the invention in this specification, read and said
After bright book and claims, without paying any creative work, insider can become under the basic framework of the present invention
Dissolve unlimited more embodiments.For example, the position relationship in each embodiment described above between each component is all used for the purpose of
The citing that description is convenient and makes, the position relation between some of which component obviously can change.
Claims (10)
1. parking brake testboard bay, including rack base, transmission shaft, an at least axis rotary driving source, at least one subtract
Fast device, at least one torque sensor, at least one force snesor, driving source connection retarder, the output axis connection of retarder
Torque sensor, it is characterised in that：At least one torque sensor is two torque sensors, is each configured to test two
One in a braking brake disk.
2. testboard bay as claimed in claim 1, it is characterised in that：It is a kind of double drag-line EPB testboard bays, described at least one
A force snesor is four force snesors, and during test, one group of each two, tests the power on the drag-line of EPB modules both sides respectively.
3. double drag-line EPB testboard bays as claimed in claim 2, it is characterised in that：An at least axis rotary driving source is
Motor.
4. double drag-line EPB testboard bays as claimed in claim 3, it is characterised in that：The motor is a motor, it is described at least
One retarder is a retarder.
5. double drag-line EPB testboard bays as claimed in claim 4, it is characterised in that：The rack base（13）Lateral center position
Put place and be equipped with a motor（E）And connected retarder（8）, retarder（8）Each drive connection one in left and right in transverse direction
Shaft coupling（41）With（42）, shaft coupling（41）With（42）One torque sensor of each connection (61) and (62), torque sensor (61)
(62) and a connecting flange (31) and (32) each are connected to.
6. double drag-line EPB testboard bays as claimed in claim 5, it is characterised in that：Shaft coupling（41）With（42）, torque sensor
（61）With (62), connecting flange（31）With（32）The center line of motor E and retarder 8 of being subject to is symmetrical arranged.
7. double drag-line EPB testboard bays as claimed in claim 3, it is characterised in that：The motor and retarder form two groups of electricity
Machine and reducer group, every group has a motor（E）With a retarder（8）, it is symmetrical arranged using rack center as symmetric points,
One shaft coupling of each retarder drive connection.
8. the method for pair drag-line EPB tests, the testboard bay limited using any one of claim 2-7, it is characterised in that：
By force snesor（F1）With force snesor（F2）Horizontal direction is arranged in EPB（H）Both sides, intercept two segment drag-lines（K）, will wherein
A bit of drag-line both ends are fixed on power sensing（F1）And EPB（H）Left side, another segment drag-line both ends are fixed on power sensing（F2）With
EPB（H）Right side, makes EPB after the completion of arrangement（H）Work, reads force snesor（F1）With force snesor（F2）Registration, record should
Numerical value.
9. method as claimed in claim 8, it is characterised in that：Choose two force snesors（G1）With（G2）, by it with EPB（H）Position
It is set to and is centrosymmetrically arranged on rack, simulation real vehicle sets two force snesors（G1）With（G2）Horizontal direction spacing and hang down
Nogata then chooses the drag-line of two equal lengths, left side drag-line both ends are fixed on power sensing to the height of distance EPB bottom surfaces（G1）
And EPB（H）Left side, the right drag-line both ends are fixed on power sensing（G2）And EPB（H）Right side, while make drag-line simulation real vehicle bending
Arrange, make EPB after the completion of arrangement（H）Work, reads force snesor（G1）With force snesor（G2）Registration, records numerical value.
10. the method for the double drag-line EPB work efficiencies of test, including double drag-line EPB both sides drag-lines are measured respectively when EPB works
Stress, it is characterised in that：Force snesor F1 and force snesor F2 horizontal directions are arranged in EPB（H）Both sides, intercept two segments
Wherein a bit of drag-line both ends are fixed on power sensing F1 and EPB by drag-line K（H）Left side, another segment drag-line both ends are fixed on power
Sense F2 and EPB（H）Right side, makes EPB after the completion of arrangement（H）Work, reads force snesor F1 and force snesor F2 registrations, record
Numerical value；Two force snesors are chosen again（G1）With（G2）, by force snesor (G1) and force snesor (G2) with EPB（H）Position is
It is centrosymmetrically arranged on rack, simulation real vehicle determines two force snesors (G1) and (G2) horizontal direction spacing with it in Vertical Square
Distance EPB bottom surfaces are high upwards, then choose the drag-line of two equal lengths, and left side drag-line both ends are fixed on power sensing（G1）And EPB
（H）Left side, the right drag-line both ends are fixed on power sensing（G2）And EPB（H）Right side, while drag-line is simulated real vehicle curved arrangement,
Make EPB after the completion of arrangement（H）Work, reads force snesor（G1）With force snesor（G2）Registration, records numerical value, and calculates F1
With the ratio of G1, or the ratio of F2 and G2 are calculated, which is the work efficiency of double drag-line EPB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711249658.6A CN108007696A (en) | 2017-12-01 | 2017-12-01 | Parking brake testboard, particularly double drag-line EPB testboard bays |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711249658.6A CN108007696A (en) | 2017-12-01 | 2017-12-01 | Parking brake testboard, particularly double drag-line EPB testboard bays |
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| Publication Number | Publication Date |
|---|---|
| CN108007696A true CN108007696A (en) | 2018-05-08 |
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ID=62055972
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711249658.6A Pending CN108007696A (en) | 2017-12-01 | 2017-12-01 | Parking brake testboard, particularly double drag-line EPB testboard bays |
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| CN (1) | CN108007696A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109668741A (en) * | 2018-12-04 | 2019-04-23 | 广州小鹏汽车科技有限公司 | Control device detection device, the system and method for pure electric automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668741A (en) * | 2018-12-04 | 2019-04-23 | 广州小鹏汽车科技有限公司 | Control device detection device, the system and method for pure electric automobile |
| CN109668741B (en) * | 2018-12-04 | 2021-06-04 | 广州小鹏汽车科技有限公司 | Device, system and method for detecting parking actuating mechanism of pure electric vehicle |
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