KR20170075416A - Measuring apparatus for cable efficiency of parking brake - Google Patents

Measuring apparatus for cable efficiency of parking brake Download PDF

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Publication number
KR20170075416A
KR20170075416A KR1020150185040A KR20150185040A KR20170075416A KR 20170075416 A KR20170075416 A KR 20170075416A KR 1020150185040 A KR1020150185040 A KR 1020150185040A KR 20150185040 A KR20150185040 A KR 20150185040A KR 20170075416 A KR20170075416 A KR 20170075416A
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KR
South Korea
Prior art keywords
cable
parking brake
load cell
measuring
efficiency
Prior art date
Application number
KR1020150185040A
Other languages
Korean (ko)
Other versions
KR101779144B1 (en
Inventor
송우정
Original Assignee
주식회사 인팩
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Publication date
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Priority to KR1020150185040A priority Critical patent/KR101779144B1/en
Publication of KR20170075416A publication Critical patent/KR20170075416A/en
Application granted granted Critical
Publication of KR101779144B1 publication Critical patent/KR101779144B1/en

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    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • 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
    • G01L5/0028—Force sensors associated with force applying means
    • G01L5/0033—Force sensors associated with force applying means applying a pulling force
    • 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
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Braking Arrangements (AREA)

Abstract

[0001] The present invention relates to an apparatus for measuring the cable efficiency of a parking brake, comprising a measuring unit connected to a cable of a parking brake for measuring the efficiency of a cable, and a load cell detachably connected to the knuckle of the vehicle, By measuring the cable efficiency of the parking brake in the actual vehicle including the coupling part, accurate measurement can be performed by reflecting the coupling relation with other parts of the vehicle.

Description

TECHNICAL FIELD [0001] The present invention relates to a cable efficiency measuring apparatus for a parking brake,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for measuring a cable efficiency of a parking brake, and more particularly, to a cable efficiency measuring apparatus for a parking brake that measures a load applied to a cable during parking brake operation.

 The EPB (Electronic Parking Brake) is a principle in which the DIH (Drum In Hat) lever connected to the END T is pulled by the load generated inside the actuator and the brake is operated due to the frictional force generated when the DIH shoe expands. At this time, the cable transmits the load generated by the actuator.

 Therefore, the EPB contains a sensor capable of measuring the load, so that the cable efficiency can be predicted in the actual vehicle condition by measuring the load on both cable ends.

Korean Registered Patent No. 10-1371882 (Apr. 03, 2013) prepared an evaluation jig to arrange the cables, predicted the efficiency of the actual cable by calculating the efficiency according to the arrangement of the cables. However, this only considers the arrangement of the cables, but does not consider the coupling relationship with other parts of the vehicle. Therefore, it has a limitation that the cable efficiency loss according to various links can not be reflected in the actual vehicle condition.

Korean Patent Registration No. 10-1371882 (Hyundai Motor Company) 2014. 03. 03

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the cable efficiency measuring apparatus of the conventional parking brake as described above and provides an apparatus for measuring the cable efficiency of the main brake capable of measuring the cable efficiency of the parking brake under the actual vehicle condition, There is a purpose.

In order to achieve the above-mentioned object, an apparatus for measuring the cable efficiency of a parking brake according to the present invention comprises a measuring unit connected to a cable of a parking brake for measuring the efficiency of a cable, And a load cell coupling portion formed to be coupled with and supported by the load cell.

At this time, the measurement unit may include a load cell for measuring a tensile force, and a cable coupling unit to which a cable of the parking brake is connected.

The load cell coupling portion may include a load cell plate for supporting the load cell, and an engagement bolt coupled to the load cell plate and detachably coupled to the knuckle.

Meanwhile, the load cell coupling part may be mounted after separating the wheels of the vehicle and the parking brake from the actual vehicle.

At this time, the cable connection portion may be formed in a groove shape so that the cable is inserted and coupled.

The measuring unit may further include a spring coupled to the load cell and configured to amplify the deformation amount of the load cell when the parking brake is operated.

As described above, according to the cable efficiency measuring apparatus for a parking brake according to the present invention, it is possible to measure a cable efficiency of a parking brake in an actual vehicle condition by installing a device for measuring cable efficiency in an actual vehicle.

1 is a perspective view of a cable efficiency measuring apparatus for a parking brake according to an embodiment of the present invention,
2 is a side view of an apparatus for measuring cable efficiency of a parking brake according to an embodiment of the present invention,
FIG. 3 is a state of use in which an apparatus for measuring cable efficiency of a parking brake according to an embodiment of the present invention is mounted,
4 is a perspective view of a cable efficiency measuring apparatus for a parking brake according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIGS. 1 and 2, an apparatus for measuring cable efficiency of a parking brake according to an embodiment of the present invention includes a measurement unit 10 and a load cell coupling unit 20.

The measurement unit 10 includes a load cell 11 and a cable coupling unit 13. The load cell 11 is fixed to the load cell coupler 20 and is connected to the tensile force transmitting unit 12 formed integrally with the cable coupler 13 by being coupled with the connection pillar 14. The cable coupling portion 13 is formed in a groove shape, and the cable 40 of the parking brake is inserted and engaged.

In the load cell coupling portion 20, a coupling bolt 22 is coupled to a disk-shaped load cell plate 21. At this time, a plurality of the coupling bolts 22 are provided corresponding to the positions of the fixing nuts 31 formed on the knuckle 30 of the vehicle.

Hereinafter, the operation and effect of the cable efficiency measuring apparatus for a parking brake according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG.

First, the installation of the cable efficiency measuring device of the parking brake according to the embodiment of the present invention will be described. First, the wheel (not shown) of the vehicle and the drum (not shown) of the parking brake are separated from each other in the actual vehicle state. As a result, the engagement of the fixing nut 31 is released to be engageable with the coupling bolt 22, and the cable 40 is exposed while being separated from the drum of the parking brake.

Next, the cable efficiency measuring apparatus of the parking brake of the present invention is mounted. That is, the coupling bolt 22 is bolted to the fixing nut 31, and the cable 40 is inserted into the hole of the cable coupling portion 13.

When the parking brake is operated, the cable 40 is pulled and the cable engaging portion 13 is pulled by the cable 40 to transmit the tensile force of the cable 40 to the tensile force transmitting portion 12. The load cell 11 is connected to the tensile force transmitting unit 12 through the connecting column 14 to receive tensile force transmitted from the cable 40.

Therefore, the load cell 11 is pulled in the direction of the knuckle 30 due to the tensile force in a state where the load cell 11 is fixedly supported by the load cell engaging portion 20, and therefore, deformation occurs.

When the length of the load cell 11 is changed by the tensile force, the resistance value changes and the output of the voltage applied to the load cell 11 changes. Therefore, the amount of change in voltage is measured to measure the tensile force.

Therefore, according to the present invention, since the measurement unit 10 and the load cell coupling unit 20 are provided so as to be detachable to the actual vehicle, the cable efficiency of the parking brake can be measured by utilizing the existing vehicle structure in the actual vehicle condition The cost of manufacturing the evaluation jig for separately measuring the cable efficiency of the parking brake can be saved.

In addition, since the cable efficiency of the parking brake is measured in the actual vehicle state, the coupling relation with other parts of the vehicle is reflected, so that accurate measurement can be made unlike the conventional case where the cable efficiency of the parking brake is predicted.

On the other hand, Fig. 4 shows another embodiment of the cable efficiency measuring apparatus of the parking brake of the present invention. At this time, a spring 115 is coupled to the load cell 111. As a result, the length deformation amount of the load cell 111 is amplified, and accordingly the tensile force measurement of the cable becomes more precise.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious that the modification or the modification is possible by the person.

 It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10, 110: measuring unit
11, 111: load cell
12, 112: tensile force transmitting portion
13, 113: cable coupling portion
14, 114: connecting pillar
115: spring
20, 120: load cell coupling part
21, 121: load cell plate
22, 122: coupling bolt
30, 130: knuckle
31, 131: Fixing nut
40, 140: Cable

Claims (6)

A measuring unit connected to the cable of the parking brake to measure the efficiency of the cable; And
A load cell coupling part detachably coupled to a knuckle of the vehicle and configured to be coupled with and supported by the measurement part;
Wherein the cable braking device is a cable braking device.
The method according to claim 1,
Wherein the measuring unit comprises:
A load cell for measuring a tensile force; And
A cable coupling portion to which a cable of the parking brake is connected;
And a controller for controlling the parking brake.
The method according to claim 1,
The load-
A load cell plate for supporting the load cell; And
A coupling bolt coupled to the load cell plate and detachably coupled to the knuckle;
And a controller for controlling the parking brake.
The method according to claim 1,
The load-
And the drum of the vehicle and the parking brake are separated from each other in the actual vehicle state.
3. The method of claim 2,
The cable connector according to claim 1,
Wherein the cable is formed in a groove shape so that the cable is fitted and coupled.
3. The method of claim 2,
Wherein the measuring unit comprises:
A spring coupled to the load cell and configured to amplify an amount of deformation of the load cell during parking brake operation;
Further comprising: a cable braking device for braking the vehicle.
KR1020150185040A 2015-12-23 2015-12-23 Measuring apparatus for cable efficiency of parking brake KR101779144B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150185040A KR101779144B1 (en) 2015-12-23 2015-12-23 Measuring apparatus for cable efficiency of parking brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150185040A KR101779144B1 (en) 2015-12-23 2015-12-23 Measuring apparatus for cable efficiency of parking brake

Publications (2)

Publication Number Publication Date
KR20170075416A true KR20170075416A (en) 2017-07-03
KR101779144B1 KR101779144B1 (en) 2017-10-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111795831A (en) * 2020-06-02 2020-10-20 一汽奔腾轿车有限公司 Stay-supported EPB test load box

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943761A (en) 1974-01-07 1976-03-16 Shoberg Ralph S Cable tension tester and control system
KR200153554Y1 (en) 1997-05-20 1999-08-02 양재신 A load measuring jig for rear wheel brake drum in vehicle
US6799473B2 (en) * 2002-04-30 2004-10-05 Honda Motor Co., Ltd. Load cell mounting apparatus and method
DE102006003173A1 (en) * 2006-01-23 2007-07-26 Siemens Ag Method for continuously determining the tensile force F in a rope of a parking brake

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111795831A (en) * 2020-06-02 2020-10-20 一汽奔腾轿车有限公司 Stay-supported EPB test load box
CN111795831B (en) * 2020-06-02 2022-06-24 一汽奔腾轿车有限公司 Stay-supported EPB test load box

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