CN109115148B - Automobile pedal travel testing device - Google Patents
Automobile pedal travel testing device Download PDFInfo
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- CN109115148B CN109115148B CN201811128920.6A CN201811128920A CN109115148B CN 109115148 B CN109115148 B CN 109115148B CN 201811128920 A CN201811128920 A CN 201811128920A CN 109115148 B CN109115148 B CN 109115148B
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- pedal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
An automobile pedal stroke testing device belongs to the field of automobile performance detection devices. The invention aims to design an automobile pedal stroke testing device which takes a handlebar as a positioning device and is used for testing the performance of an automobile pedal. The invention has a handlebar fixing sleeve sleeved on the handlebar, the handlebar fixing sleeve is connected with a handlebar end sleeve hoop through a lockable universal connector, the handlebar end sleeve hoop is sleeved on an outer sleeve, and an inner telescopic rod is inserted in the outer sleeve; the end part of the inner telescopic rod is sleeved with a clamping hoop, two folds of the clamping hoop are fastened through fastening bolts, the outer side of one fold is fixedly provided with a fixing sleeve, the fixing sleeve is fixedly sleeved on a round mandrel, one end of a swinging rod is connected with a circle center shaft, the other end of the swinging rod is connected with a swinging shaft, an extension part of the swinging shaft is connected with one end of a length fixing supporting rod, and the other end of the length fixing supporting rod is connected to a pedal through a pedal shaft. The invention has the advantages of low measurement precision, large error, complex installation, complex operation, large required space, complex operation, certain damage to the test vehicle due to installation, high technical requirements on test staff and the like.
Description
Technical Field
The invention belongs to the field of automobile performance detection devices.
Background
Automobile pedals are one of the important parts for operating an automobile, and can be used only when a large number of performance tests are met, wherein pedal force and pedal stroke are important indexes for evaluating automobile operability.
The existing technology for detecting the travel of the pedal of the automobile at home and abroad comprises the steps of measuring the travel of the pedal by adopting a pulley and a number sensor and a pull wire, wherein the number sensor is required to measure the number of turns of the pulley; the pedal stroke is measured by a graduated scale, a pull line with a pointer and a pulley frame with a pulley which are sequentially provided with elastic components; however, the automobile pedal performance testing device in the prior art has the defects of low measurement precision, large error, complex installation, complex operation and the like.
The existing technology for detecting the pedal travel of the automobile at home and abroad also has the defects that a stay wire type displacement meter with a special clamp is used for measuring the pedal travel, however, the clamp in the technology has certain damage to a test car, the required space is large, the technical requirement on a tester is high, and the like.
Disclosure of Invention
The invention aims to design an automobile pedal stroke testing device which takes a handlebar as a positioning device and is used for testing the performance of an automobile pedal.
The invention has a handlebar fixed sleeve sleeved on the handlebar, the handlebar fixed sleeve is connected with a handlebar end sleeve hoop through a lockable universal connector, the handlebar end sleeve hoop is sleeved on an outer sleeve of a length-adjustable supporting rod, and an inner telescopic rod of the length-adjustable supporting rod is inserted in the outer sleeve; the end part of the inner telescopic rod is sleeved with a clamping hoop, two folds of the clamping hoop are fastened through fastening bolts, the outer side of one fold is fixedly provided with a fixing sleeve, the fixing sleeve is fixedly sleeved on a round mandrel, one end of a swinging rod is connected with a circle center shaft, the other end of the swinging rod is connected with a swinging shaft, an extension part of the swinging shaft is connected with one end of a length fixing supporting rod, and the other end of the length fixing supporting rod is connected to a pedal through a pedal shaft.
The pedal force sensor is arranged on the pedal, and the angle sensor is arranged at the joint of the swing rod and the circle center shaft.
The pedal travel test method of the invention comprises the following steps: the connection part of the swing rod and the circle center shaft is set as the circle center O, the connection part of the swing rod and the swing shaft is set as A, and the pedal shaft is set as O 1 Set up the front end of the foot pedal O 1 The outermost end of the circle center is B, so that under the action of pedal force, the point B is represented by O 1 The travel taking O as the center is A'; let θ, α, O A, δ, a length of oa= O A ', b=a' B;
the method comprises the following steps:
(1) calculating distance OB according to triangle cosine theorem
(2) Calculating distance O B 'according to triangle cosine theorem'
(3) Calculating pedal performance BB 'according to triangle cosine theorem'
The invention provides an automobile pedal performance testing device and method, which solve the defects of low measurement precision, large error, complex installation, complex operation, large required space, complex operation, certain damage to a test vehicle due to installation, high technical requirements on test staff and the like in the prior art.
Drawings
FIG. 1 is a schematic view of the general structure of the present invention;
FIG. 2 is an enlarged schematic view of the connection part of the length-fixed support rod, the inner telescopic rod and the swing rod of the invention;
FIG. 3 is an enlarged view of the portion of the length-fixed support rod connected to the foot pedal in accordance with the present invention;
FIG. 4 is a schematic illustration of pedal performance apparatus movement in accordance with the present invention;
FIG. 5 is a graph of clutch pedal force and travel in accordance with the present invention;
FIG. 6 is a graph of the present invention applied to a B30 clutch and tested for pedal force performance;
fig. 7 is an effect diagram of an application example of the present invention.
Detailed Description
The invention has a handlebar fixed sleeve 9 sleeved on a handlebar 10, the handlebar fixed sleeve 9 is connected with a handlebar end hoop 7 through a lockable universal connector 8, the handlebar end hoop 7 is sleeved on an outer sleeve 6 of a length-adjustable supporting rod, and an inner telescopic rod 5 of the length-adjustable supporting rod is inserted in the outer sleeve 6; the end part of the inner telescopic rod 5 is sleeved with a clamping hoop 15, two folding edges of the clamping hoop 15 are fastened through a fastening bolt 16, a fixing sleeve 13 is fixedly arranged on the outer side of one folding edge, the fixing sleeve 13 is fixedly sleeved on a circle center shaft 14, one end of a swinging rod 12 is connected with the circle center shaft 14 in a shaft mode, the other end of the swinging rod 12 is connected with a swinging shaft 11 in a shaft mode, one end of a length fixing supporting rod 4 is connected to an extending part shaft of the swinging shaft 11 in a shaft mode, and the other end of the length fixing supporting rod 4 is connected to the pedal plate 1 in a shaft mode through a pedal shaft 3.
The pedal force sensor 2 is arranged on the pedal plate 1, and the angle sensor is arranged at the joint of the swing rod 12 and the center shaft 14.
The pedal travel test method of the invention comprises the following steps: the connection part of the swing rod 12 and the round mandrel 14 is set as a circle center O, the connection part of the swing rod 12 and the swing shaft 11 is set as A, and the pedal shaft 3 is set as O 1 The front end of the foot pedal 1 is provided with O 1 The outermost end of the circle center is B, so that under the action of pedal force, the point B is represented by O 1 The travel taking O as the center is A'; let θ, α, O A, δ, a length of oa= O A ', b=a' B;
the method comprises the following steps:
(1) calculating distance OB according to triangle cosine theorem
(2) Calculating distance O B 'according to triangle cosine theorem'
(3) Calculating pedal performance BB 'according to triangle cosine theorem'
The invention is described in further detail below with reference to the attached drawing figures:
according to the invention, as shown in fig. 1, 2 and 3, a length-adjustable supporting rod (comprising an outer sleeve 6 and an inner telescopic rod 5) at the end of a steering wheel is clamped on the steering wheel through a handle fixing sleeve 9 fixedly connected with a lockable universal connector after the inner telescopic rod 5 is inserted into the outer sleeve 6 and is adjusted to a required position by the insertion, the length-adjustable supporting rod (namely a round mandrel) at the end of the fixed short rod is fixed on the length-adjustable supporting rod (namely a round mandrel) through the lockable universal connector (consisting of the fixing sleeve 13, the clamping hoop 15 and the fastening bolt 16), and the other end of the length-adjustable supporting rod at the end of the fixed short rod is connected on a length-fixed short rod (namely a swinging rod 12) provided with an angle sensor. The axis of the length-adjustable support rod (namely a round mandrel) is the center o of the angle sensor on the length-fixed short rod. The other end swinging shaft 11 of the length-fixed short rod (namely the swinging rod 12) is also provided with an angle sensor, the swinging shaft 11 end of the length-fixed long rod (namely the swinging rod 12) is connected with the point B, which is provided with the angle sensor as a swinging circle center A, and the other end of the swinging shaft is connected with a connecting point B (namely the pedal outer end point of the pedal 1 with the circle center of the pedal shaft 3) on the pedal seat, and the pedal force sensor and the pedal seat are fixed on the pedal through bolts. The length-adjustable support rod and the support rod aim at fixing the circle center O point of the angle sensor, and the length-fixed long rod and the short rod can rotate around the O point on the axis of the length-adjustable support rod when the pedal is stepped.
The invention relates to a pedal travel testing device principle
Before the pedal is not stepped, the short rod is at an initial position OA, the long rod is at an initial position AB, when the pedal is stepped to an extreme position, the position of the short rod is OA ', and the position of the long rod is A ' B '. The angle sensor can measure BOB '(the rotation angle from the point of the connecting point B of the long rod and the pedal seat to the point of the limiting position of the long rod and the point of the connecting point B' of the pedal seat around the center O of the angle sensor), the angle sensor can measure OAB (the rotation angle from the point O of the center of the angle sensor to the point of the connecting point B of the long rod and the point of the connecting point B of the pedal seat around the center A of the connecting point A of the angle sensor) and OA 'B' (the rotation angle from the point O of the center of the angle sensor to the point of the limiting position of the long rod and the point B 'of the pedal seat around the center A' of the limiting position of the angle sensor), and the length of the short rod and the short rod with fixed length are known. Let B '=α, ++oab=θ, ++oa' B '=δ, short rod length oa=oa' =a, long rod length ab=a 'B' =b, pedal performance measurement device motion diagram is shown in fig. 4.
Firstly, calculating the distance OB from the circle center O point of an angle sensor (6) at the initial position before pedal stepping to the point B at the joint of a fixed length long rod (9) and a pedal seat (10) according to the triangle cosine theorem, wherein the specific calculation method is as follows:
then, according to the triangle cosine theorem, calculating the distance OB 'from the circle center O point of the pedal to the initial position angle sensor (6) at the limit position to the point B' at the joint of the fixed length long rod (9) and the pedal seat (10), wherein the concrete calculation method is as follows:
and finally, calculating the pedal performance BB' according to the triangle cosine theorem, wherein the specific calculation formula is as follows:
the data acquisition and curve forming process of the invention
The signal acquisition instrument receives pedal force signals acquired by the force sensor; angle signal +.bob '=α (rotation angle from the point of the initial position of the long rod and the point of the connection point of the pedal seat B to the point of the extreme position of the long rod and the point of the connection point of the pedal seat B' around the center O of the angle sensor) collected by the angle sensor, angle signal +.oab=θ (rotation angle from the point of the center O of the angle sensor to the point of the initial position of the long rod and the point of the connection point of the pedal seat B around the center a of the initial position of the angle sensor) and +.oa 'B' =δ (rotation angle from the point of the center O of the angle sensor to the point of the extreme position of the long rod and the point of the connection point B 'around the center a' of the extreme position of the angle sensor). The signal acquisition instrument transmits the received 1 pedal force signal and 2 angle signals to the computer program.
First, the computer program calculates a pedal stroke according to a pedal stroke calculation method, and then fits the pedal force and pedal stroke to a pedal performance curve.
Taking clutch pedal as an example, the computer fits the pedal force and travel profiles for the process and return stroke to the pedal performance profile shown in fig. 5.
Verification process of pedal performance testing device
Taking a test of the performance of a clutch pedal of a automobile Pentium B30 car as an example to verify the performance test device of the pedal, firstly, fixing a pedal seat and a pedal force sensor on the clutch pedal through bolts, fixing one end of a long rod with a fixed length on the pedal seat through bolts, connecting the other end of the long rod with an angle sensor on a short rod with a fixed length through threads, connecting the other end of the short rod with a support rod with an adjustable length through threads, locking the support rod with the adjustable length through a lockable universal connector, and locking the support rod with the adjustable length and a steering wheel through the lockable universal connector. When the pedal is stepped, the length-fixed long rod and the short rod can rotate around the O point on the axis of the length-adjustable supporting rod, and the length-adjustable supporting rod and the supporting rod play a role in fixing the circle center O point of the angle sensor. A picture of the pedal performance test apparatus installation process is shown in fig. 7.
Connecting a connecting wire of a force sensor and two angle sensors to a data acquisition instrument, connecting the data acquisition instrument to a computer through a USB, and calculating a B30 clutch pedal force performance curve through a computer program as shown in FIG. 7.
Claims (2)
1. An automobile pedal travel test device which is characterized in that: the handlebar fixing sleeve (9) is sleeved on the handlebar (10), the handlebar fixing sleeve (9) is connected with the handlebar end hoops (7) through the lockable universal connector (8), the handlebar end hoops (7) are sleeved on the outer sleeve (6) of the length-adjustable support rod, and the inner telescopic rod (5) of the length-adjustable support rod is inserted into the outer sleeve (6); the end part of the inner telescopic rod (5) is sleeved with a clamping hoop (15), two folding edges of the clamping hoop (15) are fastened through a fastening bolt (16), a fixing sleeve (13) is fixedly arranged on the outer side of one folding edge, the fixing sleeve (13) is fixedly sleeved on a circle center shaft (14), one end of a swinging rod (12) is connected with the circle center shaft (14) in a shaft mode, the other end of the swinging rod (12) is connected with a swinging shaft (11) in a shaft mode, one end of a length fixing supporting rod (4) is connected to an extension part shaft of the swinging shaft (11), and the other end of the length fixing supporting rod (4) is connected to a pedal plate (1) through a pedal shaft (3) in a shaft mode;
the connection part of the swing rod (12) and the circle center shaft (14) is set as the circle center O, the connection part of the swing rod (12) and the swing shaft (11) is set as A, and the pedal shaft (3) is set as O 1 The front end of the foot pedal (1) is provided with O 1 The outermost end of the circle center is B, so that under the action of pedal force, the point B is represented by O 1 The travel taking O as the center is A'; let θ, α, O A, δ, a length of oa= O A ', b=a' B;
the method comprises the following steps:
(1) calculating distance OB according to triangle cosine theorem
(2) Calculating distance O B 'according to triangle cosine theorem'
(3) Calculating pedal performance BB 'according to triangle cosine theorem'
The signal acquisition instrument receives pedal force signals acquired by the force sensor; angle signals ++bob '=α collected by the angle sensor and angle signals ++oab=θ and ++oa' B '=δ collected by the angle sensor, where ++bob' =α is a rotation angle from a long-rod initial position to a pedal-seat connection point B to a long-rod limit position to a pedal-seat connection point B 'around an angle sensor center O, and ++oab=θ is a rotation angle from an angle sensor center O to a long-rod initial position to a pedal-seat connection point B around an angle sensor initial position center a, and ++oa' =δ is a rotation angle from an angle sensor center O to a long-rod limit position to a pedal-seat connection point B 'around an angle sensor limit position center a', and the signal collector transmits the received 1 pedal force signals and 2 angle signals to the computer program;
the computer program calculates a pedal stroke according to the pedal stroke calculation method and then fits the pedal force and pedal stroke to a pedal performance curve.
2. The automobile pedal travel test apparatus of claim 1, wherein: a pedal force sensor (2) is arranged on the pedal (1), and an angle sensor is arranged at the joint of the swing rod (12) and the center shaft (14).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811128920.6A CN109115148B (en) | 2018-09-27 | 2018-09-27 | Automobile pedal travel testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811128920.6A CN109115148B (en) | 2018-09-27 | 2018-09-27 | Automobile pedal travel testing device |
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| CN109115148A CN109115148A (en) | 2019-01-01 |
| CN109115148B true CN109115148B (en) | 2023-05-16 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016856A (en) * | 2019-11-15 | 2020-04-17 | 中国北方车辆研究所 | Rapid fixing device for pedal stroke sensor of wheeled vehicle |
| CN113029077A (en) * | 2019-12-25 | 2021-06-25 | 北京宝沃汽车股份有限公司 | Pedal travel testing method and system |
| CN113639686B (en) * | 2021-08-10 | 2022-11-01 | 安徽江淮汽车集团股份有限公司 | Stroke measuring device |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB271138A (en) * | 1926-02-15 | 1927-05-16 | Robert Surtees | Improvements in and relating to safety guards adapted for use with power presses andthe like |
| JPH11500379A (en) * | 1995-11-25 | 1999-01-12 | イーテーテー・アウトモティーフェ・オイローペ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | A driving stability control unit that limits the reference yaw rate according to the friction coefficient |
| DE10024921A1 (en) * | 2000-05-19 | 2001-11-22 | Asg Luftfahrttechnik Und Senso | Pedal travel unit |
| JP4888345B2 (en) * | 2007-03-20 | 2012-02-29 | トヨタ自動車株式会社 | Pedal operation amount detection device |
| CN201327447Y (en) * | 2008-12-18 | 2009-10-14 | 奇瑞汽车股份有限公司 | Automobile electronic accelerator pedal performance test bed |
| JP5056890B2 (en) * | 2010-04-08 | 2012-10-24 | 株式会社デンソー | Stroke amount detection device |
| CN102494046A (en) * | 2011-12-21 | 2012-06-13 | 长春一东离合器股份有限公司 | Compensatory clutch with double diaphragm springs |
| JP6015313B2 (en) * | 2012-09-28 | 2016-10-26 | アイシン・エィ・ダブリュ株式会社 | Stroke measuring device |
| CN203332109U (en) * | 2013-06-09 | 2013-12-11 | 兰州工业学院 | Vehicle running state forecasting device |
| CN107305155A (en) * | 2016-04-21 | 2017-10-31 | 上海汽车集团股份有限公司 | Pedal performance detecting system and method |
| CN106872182B (en) * | 2017-02-15 | 2019-04-12 | 重庆凯瑞汽车试验设备开发有限公司 | A kind of brake system of car bench test coefficient of road adhesion simulator and method |
| CN106950050B (en) * | 2017-03-24 | 2018-12-21 | 安徽江淮汽车集团股份有限公司 | Brake-pedal travel measuring device |
| CN107097643B (en) * | 2017-04-24 | 2023-06-20 | 华南理工大学 | Non-contact accelerator pedal sensor system based on Hall effect |
| CN107727033A (en) * | 2017-10-27 | 2018-02-23 | 燕山大学 | A kind of automobile pedal travel test device and method |
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