CN203551292U - Test bench for testing feel of brake pedal of passenger vehicle - Google Patents
Test bench for testing feel of brake pedal of passenger vehicle Download PDFInfo
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- CN203551292U CN203551292U CN201320665485.7U CN201320665485U CN203551292U CN 203551292 U CN203551292 U CN 203551292U CN 201320665485 U CN201320665485 U CN 201320665485U CN 203551292 U CN203551292 U CN 203551292U
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- vacuum
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- vacuum booster
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Abstract
The utility model relates to a test bench for testing feel of a brake pedal of a passenger vehicle. The test bench includes a support bench and, a driving mechanism, a vacuum booster, a braking main cylinder and a brake assembly, which are fixed on the support bench. The test bench also includes a vacuum device, a tensile and pressure sensor assembly, a displacement sensor assembly and an oil-pressure sensor assembly. The vacuum device is connected with the vacuum booster and supplies different vacuum pressures to the vacuum booster. The tensile and pressure sensor assembly is arranged on the driving mechanism and used for measuring the push-rod force of the vacuum booster. The displacement sensor assembly is connected with a push rod and an output rod of the vacuum booster and used for measuring the displacement of the push rod and the output rod of the vacuum booster. The braking main cylinder acts on the brake assembly through the oil-pressure sensor assembly. Compared with the prior art, the test bench for testing feel of the brake pedal of the passenger vehicle can be used for researching effects of parts of the vacuum booster and the braking main cylinder and the like and different vacuum degrees and push-rod speeds on the feel of the brake pedal of the passenger vehicle and the test bench has the advantages of being simple in structure, saved in cost, easy to realize and capable of being improved and the like.
Description
Technical field
The utility model relates to brake system of car field, especially relate to a kind of test-bed of testing passenger car brake pedal feel, be mainly used in analyzing the characteristics of components such as passenger car vacuum booster, master cylinder, detent and push rod speed, the impact of vacuum tightness on passenger car brake pedal feel.
Background technology
Brake system is one of critical system of automobile, and its system performance is not only directly connected to braking safety, and is directly connected to people's life security, and brake pedal feel, as one of automobile important quality, directly affects the overall evaluation of consumer to product.In recent years, the importance that brake pedal feel has become gradually consumer's complaint, complained, this has caused the concern of automobile vendor.In addition, car load factory, according to the Quality classification of vehicle itself and the selection to target customer, generally can make design in advance to brake pedal feel, and such as the vehicle having focuses on braking comfortableness more, and some vehicles are focused on braking sensitivity and exercise performance more.Therefore, towards passenger car brake fluid system, exploitation can be tested the test-bed of brake pedal feel, utilize this device research critical component and the impact of key factor on brake pedal feel, thereby in brake system Top-Down Design, predict and revise brake pedal feel, for passenger car brake system Top-Down Design provides according to very necessary.
Utility model content
The purpose of this utility model is exactly to provide a kind of test-bed of testing passenger car brake pedal feel in order to overcome the defect of above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of test-bed of testing passenger car brake pedal feel, comprise brace table and be fixed on the driving mechanism on brace table, vacuum booster, master cylinder and brake assembly, the push rod of described driving mechanism effect vacuum booster, the take-off lever of described vacuum booster is connected with master cylinder, it is characterized in that, described test-bed also comprises vacuum plant, pull pressure sensor assembly, displacement sensor component and oil pressure sensor assembly, described vacuum plant is connected with vacuum booster, for vacuum booster provides different vacuum pressures, under different vacuum pressures:
On described pull pressure sensor assembly arranges between vacuum booster push rod and servo electric jar push rod, vacuum booster push rod and servo electric jar push rod are on same axis, when vacuum booster push rod promotes servo electric jar, pull pressure sensor just can be used for measuring the push rod power of vacuum booster;
Described displacement sensor component is connected with take-off lever with vacuum booster push rod, for measuring the displacement of vacuum booster push rod and take-off lever;
Described master cylinder is by oil pressure sensor assembly effect brake assembly, and described oil pressure sensor assembly is for delivery of the oil pressure with measuring brake assembly.
Described vacuum plant comprises vacuum pump, gas-holder, vacuum regulating valve, vacuum meter T-valve and the vacuum sensor T-valve connecting successively, described vacuum sensor T-valve is connected with described vacuum booster, described vacuum meter T-valve is provided with vacuum meter, described vacuum sensor T-valve is provided with vacuum sensor, for measuring the absolute pressure of vacuum booster vacuum chamber.
Described driving mechanism comprises servo electric jar and fixed support, described servo electric jar is fixed on brace table by fixed support, described driving mechanism is by the vacuum booster push rod described in the effect of servo electric jar push rod, and described servo electric jar push rod and described vacuum booster push rod are on same axis.
Described pull pressure sensor assembly comprises pull pressure sensor and pull pressure sensor web member, described pull pressure sensor is connected with servo electric jar push rod by pull pressure sensor web member, and described servo electric jar promotes described vacuum booster push rod by pull pressure sensor web member.
Described displacement sensor component comprises the first rod-pulling type displacement transducer, the second rod-pulling type displacement transducer and displacement transducer web member, described the first rod-pulling type displacement transducer and the second rod-pulling type displacement transducer are separately fixed on brace table, the first described rod-pulling type displacement transducer is by displacement transducer web member and the described parallel connection of vacuum booster push rod, and the second described rod-pulling type displacement transducer passes through displacement transducer web member and the described parallel connection of vacuum booster take-off lever.
Valve formula tandem tandem master cylinder centered by described master cylinder, this master cylinder comprises ante-chamber and back cavity.
Described oil pressure sensor assembly comprises chamber, front and back T-valve, pipeline T-valve and the oil pressure sensor T-valve connecting successively, described chamber, front and back T-valve is connected with back cavity with the ante-chamber of master cylinder respectively, described oil pressure sensor T-valve is connected with brake assembly respectively, on described chamber, front and back T-valve and oil pressure sensor T-valve, is connected with respectively oil pressure sensor.
Compared with prior art, the utlity model has following advantage:
1, by changing servo electric jar push rod speed, the utility model can be used for studying the impact of different push rod speed on passenger car brake pedal feel.
2, vacuum plant can provide for the vacuum chamber of vacuum booster between 0～1bar vacuum pressure arbitrarily, by regulating different vacuum pressures to make the utility model can be used for studying parts and the impacts of different vacuum tightness on passenger car brake pedal feel such as vacuum booster, master cylinder.
3, the brace table that the utility model is used, fixed support, all kinds of web member and all kinds of T-valve all have enough rigidity, have eliminated the distortion and the resonance problem that due to stand insufficient rigidity, produce, have improved the accuracy of test findings.
4, the utility model is simple in structure, easily realizes, owing to being brake fluid system based on traditional, each sensor and web member, can replace easily according to testing requirements, and stand has the property improved preferably, save cost, for the research of follow-up brake system lays the foundation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the affect schematic diagram of different pedal speeds on the displacement of push rod power-push rod in embodiment mono-;
Fig. 3 is the affect schematic diagram of different pedal speeds on master cylinder oil pressure-push rod power in embodiment mono-;
Fig. 4 is the affect schematic diagram of different pedal speeds on the displacement of vacuum pressure-push rod in embodiment mono-;
Fig. 5 be in embodiment bis-when push rod speed 6rnm/s the affect schematic diagram of different vacuum tightness on the displacement of push rod power-push rod;
Fig. 6 be in embodiment bis-when push rod speed 6mm/s the affect schematic diagram of different vacuum tightness on the displacement of master cylinder oil pressure-push rod;
Fig. 7 be in embodiment bis-when push rod speed 6mm/s the affect schematic diagram of different vacuum tightness on the displacement of push rod power-push rod.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
As shown in Figure 1, a kind of test-bed of testing passenger car brake pedal feel, it is characterized in that, comprise brace table 1, driving mechanism, vacuum booster 3, master cylinder 4, pull pressure sensor assembly, displacement sensor component, oil pressure sensor assembly, vacuum plant and brake assembly, described driving mechanism simulating brake pedal effect vacuum booster 3 push rods, described pull pressure sensor assembly is arranged on driving mechanism take-off lever, for measuring the push rod power of vacuum booster 3; Described vacuum booster 3 take-off levers are connected with master cylinder 4, and described displacement sensor component is connected with take-off lever with vacuum booster 3 push rods respectively, for measuring the displacement of vacuum booster push rod and take-off lever; Described master cylinder 4 is connected with oil pressure sensor assembly by oil pipe, and described oil pressure sensor assembly is connected with brake assembly, and described oil pressure sensor assembly is for delivery of the oil pressure with measuring brake assembly; Described vacuum plant is connected with vacuum booster 3, for vacuum booster 3 provides vacuum pressure.
Described driving mechanism comprises servo electric jar 21 and fixed support 22, described servo electric jar 21 is fixed on brace table 1 by the first support 22, described vacuum booster 3 is fixed on brace table 1 by the second support 31, described pull pressure sensor assembly comprises pull pressure sensor 51 and pull pressure sensor web member 52, described pull pressure sensor 51 is connected with servo electric jar 21 push rods by pull pressure sensor web member 52, described servo electric jar 21 simulating brake pedals, by pull pressure sensor web member 52, promote described vacuum booster 3 push rods, described pull pressure sensor 51 is for measuring the push rod power of vacuum booster 3 push rods, described servo electric jar 21 push rods and described vacuum booster 3 push rods are on same axis, distance is between the two adjustable.The normal thrust of the servo electric jar described in the present embodiment is 8500N, and actual thrust is 5000N, and its push rod maximal rate is 125mm/s, and push rod range is 100mm; The range of described pull pressure sensor 51 is 0～500kgf, and precision is 0.3%FS.
Described displacement sensor component comprises the first rod-pulling type displacement transducer 61, the second rod-pulling type displacement transducer 62 and displacement transducer web member 63, described the first rod-pulling type displacement transducer 61 and the second rod-pulling type displacement transducer 62 are separately fixed on brace table 1, the first described rod-pulling type displacement transducer 61 is for measuring the displacement of vacuum booster 3 push rods, the output guide rod of the first described rod-pulling type displacement transducer 61 is parallel with described vacuum booster 3 push rods, and be rigidly connected by displacement transducer web member 63 and vacuum booster 3 push rods, prevent that displacement is asynchronous, the second described rod-pulling type displacement transducer 62 is for measuring the displacement of vacuum booster 3 take-off levers, the output guide rod of the second described rod-pulling type displacement transducer 62 is parallel with described vacuum booster 3 take-off levers, and be connected with vacuum booster 3 take-off levers by displacement transducer web member 63, described vacuum booster 3 take-off levers are connected with master cylinder 4.The range of the rod-pulling type displacement transducer described in the present embodiment is 0～150mm, and precision is 0.05%FS.
Described vacuum plant comprises vacuum pump 81, gas-holder 82, vacuum regulating valve 83, vacuum meter T-valve 84 and the vacuum sensor T-valve 85 connecting successively, described vacuum sensor T-valve 85 is connected with described vacuum booster 3 vacuum chambers, described vacuum meter T-valve 84 is provided with vacuum meter 86, described vacuum sensor T-valve 85 is provided with vacuum sensor 87, for measuring the absolute pressure of vacuum booster 3 vacuum chambers.The model of the described vacuum pump 81 described in the present embodiment is 2XZ-1, and extreme pressure is 0.06Pa, and flow is 60L/min; The model of described vacuum regulating valve 83 is IRV10-C06, and range of adjustment is-100～-1.3kpa, and sensitivity is-1.3kpa that maximum flow is 60L/min; The volume of described gas-holder 82 is 20L; The range of described vacuum sensor 87 is 0～5bar, and precision is 0.3%FS, and the vacuum chamber that this vacuum plant can be vacuum booster 3 provides between 0～1bar vacuum pressure arbitrarily.
Valve formula tandem tandem master cylinder centered by described master cylinder 4, this master cylinder 4 comprises ante-chamber and back cavity, described brake assembly comprises detent mounting bracket 91, detent 92, brake disc mounting bracket 93 and brake disc, described detent 92 is fixed on detent mounting bracket 91, described brake disc mounting bracket 93 is fixed on detent 92, described brake disc is fixedly mounted on brake disc mounting bracket 93, described brake assembly is provided with four altogether, it is respectively the near front wheel brake assembly, left rear wheel brake assembly, off-front wheel brake assembly and off hind wheel brake assembly, described oil pressure sensor assembly comprises chamber, front and back T-valve, pipeline T-valve 71 and the oil pressure sensor T-valve 72 connecting successively, described chamber, front and back T-valve is connected with back cavity with the ante-chamber of master cylinder 4 respectively, described oil pressure sensor T-valve 72 is provided with four, be connected with the near front wheel brake assembly, left rear wheel brake assembly, off-front wheel brake assembly and off hind wheel brake assembly respectively, on described chamber, front and back T-valve and oil pressure sensor T-valve 72, be respectively arranged with oil pressure sensor 73, for measuring the oil pressure in master cylinder 4 chambeies, front and back.The range of the oil pressure sensor 73 described in the present embodiment is 0～300bar, and precision is 0.25%FS.
The utility model replaces brake pedal with servo electric jar, replaces stroke and the power of brake pedal with the stroke of servo electric jar and power, by changing the speed of servo electric jar push rod, can study the impact of different push rod speed on passenger car brake pedal feel; Vacuum plant can provide for the vacuum chamber of vacuum booster between 0～1bar vacuum pressure arbitrarily, by regulating different vacuum pressures to make the utility model can be used for studying characteristics of components and the impacts of different vacuum tightness on passenger car brake pedal feel such as vacuum booster, master cylinder, detent.
Embodiment mono-: as shown in Fig. 2-Fig. 4, the impact of different pedal speeds on the displacement of push rod power-push rod, master cylinder oil pressure-push rod power and the displacement of vacuum pressure-push rod while being respectively real vehicle name vacuum tightness, as can be seen from Figure, in push rod traveling process, vacuum chamber pressure increases gradually, and push rod speed is larger, vacuum chamber pressure rate of growth is larger, this has caused the loss of vacuum booster power-assisted and the decline of assist rate, therefore needs push rod power to supplement, and then causes push rod rigidity to increase.
Embodiment bis-: as shown in Figure 5-Figure 7, the impact of different vacuum tightness on the displacement of push rod power-push rod, master cylinder oil pressure-push rod displacement and the displacement of push rod power-push rod while being respectively push rod speed 6mm/s, as can be seen from Figure, vacuum booster vacuum tightness has important impact to passenger car brake pedal feel.
The above-mentioned description to embodiment is can understand and apply the utility model for ease of those skilled in the art.Those skilled in the art obviously can be easy to these enforcements to make various modifications, and General Principle described herein are applied in other embodiment and needn't pass through performing creative labour.Therefore, the utility model is not limited to the embodiment here, and those skilled in the art are according to announcement of the present utility model, and not departing from the improvement that the utility model category done and revise all should be within protection domain of the present utility model.
Claims (7)
1. a test-bed of testing passenger car brake pedal feel, comprise brace table and be fixed on the driving mechanism on brace table, vacuum booster, master cylinder and brake assembly, the push rod of described driving mechanism effect vacuum booster, the take-off lever of described vacuum booster is connected with master cylinder, it is characterized in that, described test-bed also comprises vacuum plant, pull pressure sensor assembly, displacement sensor component and oil pressure sensor assembly, described vacuum plant is connected with vacuum booster, for vacuum booster provides different vacuum pressures, under different vacuum pressures:
On described pull pressure sensor assembly arranges between vacuum booster push rod and servo electric jar push rod, vacuum booster push rod and servo electric jar push rod are on same axis, when vacuum booster push rod promotes servo electric jar, pull pressure sensor just can be used for measuring the push rod power of vacuum booster;
Described displacement sensor component is connected with take-off lever with vacuum booster push rod, for measuring the displacement of vacuum booster push rod and take-off lever;
Described master cylinder is by oil pressure sensor assembly effect brake assembly, and described oil pressure sensor assembly is for delivery of the oil pressure with measuring brake assembly.
2. a kind of test-bed of testing passenger car brake pedal feel according to claim 1, it is characterized in that, described vacuum plant comprises vacuum pump, gas-holder, vacuum regulating valve, vacuum meter T-valve and the vacuum sensor T-valve connecting successively, described vacuum sensor T-valve is connected with described vacuum booster, described vacuum meter T-valve is provided with vacuum meter, described vacuum sensor T-valve is provided with vacuum sensor, for measuring the absolute pressure of vacuum booster vacuum chamber.
3. a kind of test-bed of testing passenger car brake pedal feel according to claim 1, it is characterized in that, described driving mechanism comprises servo electric jar and fixed support, described servo electric jar is fixed on brace table by fixed support, described driving mechanism is by the vacuum booster push rod described in the effect of servo electric jar push rod, and described servo electric jar push rod and described vacuum booster push rod are on same axis.
4. a kind of test-bed of testing passenger car brake pedal feel according to claim 3, it is characterized in that, described pull pressure sensor assembly comprises pull pressure sensor and pull pressure sensor web member, described pull pressure sensor is connected with servo electric jar push rod by pull pressure sensor web member, and described servo electric jar promotes described vacuum booster push rod by pull pressure sensor web member.
5. a kind of test-bed of testing passenger car brake pedal feel according to claim 1, it is characterized in that, described displacement sensor component comprises the first rod-pulling type displacement transducer, the second rod-pulling type displacement transducer and displacement transducer web member, described the first rod-pulling type displacement transducer and the second rod-pulling type displacement transducer are separately fixed on brace table, the first described rod-pulling type displacement transducer is by displacement transducer web member and the described parallel connection of vacuum booster push rod, the second described rod-pulling type displacement transducer is by displacement transducer web member and the described parallel connection of vacuum booster take-off lever.
6. a kind of test-bed of testing passenger car brake pedal feel according to claim 1, is characterized in that, valve formula tandem tandem master cylinder centered by described master cylinder, and this master cylinder comprises ante-chamber and back cavity.
7. a kind of test-bed of testing passenger car brake pedal feel according to claim 6, it is characterized in that, described oil pressure sensor assembly comprises chamber, front and back T-valve, pipeline T-valve and the oil pressure sensor T-valve connecting successively, described chamber, front and back T-valve is connected with back cavity with the ante-chamber of master cylinder respectively, described oil pressure sensor T-valve is connected with brake assembly respectively, on described chamber, front and back T-valve and oil pressure sensor T-valve, is connected with respectively oil pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320665485.7U CN203551292U (en) | 2013-10-25 | 2013-10-25 | Test bench for testing feel of brake pedal of passenger vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320665485.7U CN203551292U (en) | 2013-10-25 | 2013-10-25 | Test bench for testing feel of brake pedal of passenger vehicle |
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| CN203551292U true CN203551292U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320665485.7U Expired - Fee Related CN203551292U (en) | 2013-10-25 | 2013-10-25 | Test bench for testing feel of brake pedal of passenger vehicle |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136476A (en) * | 2015-09-21 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Vacuum booster online idle stroke detection device |
| CN106989937A (en) * | 2017-05-12 | 2017-07-28 | 同济大学 | Controlled stroke formula accelerator pedal of automobile driving machine |
| CN107024311A (en) * | 2017-04-24 | 2017-08-08 | 中国重汽集团成都王牌商用车有限公司 | Brake fluid system brake real-time pressure monitoring system and method |
| CN107202685A (en) * | 2017-06-15 | 2017-09-26 | 吉林大学 | A kind of electric mechanical braking booster hardware-in-loop simulation testing stand and test method |
| CN107367394A (en) * | 2017-08-14 | 2017-11-21 | 吉林大学 | A kind of simulating brake booster reaction plate working condition measurement test-bed |
| CN110231178A (en) * | 2019-06-10 | 2019-09-13 | 北京汽车集团越野车有限公司 | A kind of test device of brake pedal feel |
| CN112945553A (en) * | 2021-03-31 | 2021-06-11 | 东风汽车集团股份有限公司 | Real vehicle vacuum booster performance test system and method |
| CN113324767A (en) * | 2021-06-24 | 2021-08-31 | 郑州日产汽车有限公司 | Multifunctional brake system hardware-in-the-loop test bench |
| CN114992110A (en) * | 2022-06-21 | 2022-09-02 | 一汽奔腾轿车有限公司 | Threshold setting method for electronic vacuum pump for new energy vehicle |
-
2013
- 2013-10-25 CN CN201320665485.7U patent/CN203551292U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136476A (en) * | 2015-09-21 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Vacuum booster online idle stroke detection device |
| CN107024311A (en) * | 2017-04-24 | 2017-08-08 | 中国重汽集团成都王牌商用车有限公司 | Brake fluid system brake real-time pressure monitoring system and method |
| CN106989937A (en) * | 2017-05-12 | 2017-07-28 | 同济大学 | Controlled stroke formula accelerator pedal of automobile driving machine |
| CN106989937B (en) * | 2017-05-12 | 2018-12-18 | 同济大学 | Controlled stroke formula accelerator pedal of automobile driving machine |
| CN107202685A (en) * | 2017-06-15 | 2017-09-26 | 吉林大学 | A kind of electric mechanical braking booster hardware-in-loop simulation testing stand and test method |
| CN107367394A (en) * | 2017-08-14 | 2017-11-21 | 吉林大学 | A kind of simulating brake booster reaction plate working condition measurement test-bed |
| CN107367394B (en) * | 2017-08-14 | 2023-08-22 | 吉林大学 | Test bench for simulating working condition of feedback disc of brake booster |
| CN110231178A (en) * | 2019-06-10 | 2019-09-13 | 北京汽车集团越野车有限公司 | A kind of test device of brake pedal feel |
| CN112945553A (en) * | 2021-03-31 | 2021-06-11 | 东风汽车集团股份有限公司 | Real vehicle vacuum booster performance test system and method |
| CN113324767A (en) * | 2021-06-24 | 2021-08-31 | 郑州日产汽车有限公司 | Multifunctional brake system hardware-in-the-loop test bench |
| CN114992110A (en) * | 2022-06-21 | 2022-09-02 | 一汽奔腾轿车有限公司 | Threshold setting method for electronic vacuum pump for new energy vehicle |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20161025 |