CN103278338B - The ABS inertia test stand of air pressure and hydraulic pressure compatibility - Google Patents
The ABS inertia test stand of air pressure and hydraulic pressure compatibility Download PDFInfo
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- CN103278338B CN103278338B CN201310255941.5A CN201310255941A CN103278338B CN 103278338 B CN103278338 B CN 103278338B CN 201310255941 A CN201310255941 A CN 201310255941A CN 103278338 B CN103278338 B CN 103278338B
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- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 238000002955 isolation Methods 0.000 claims abstract description 29
- 230000000712 assembly Effects 0.000 claims abstract description 16
- 238000000429 assembly Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000013016 damping Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The invention discloses a kind of for the air pressure of test car ABS system and the ABS inertia test stand of hydraulic pressure compatibility, this running under braking master cylinder testing platform adds pressure electromagnetic valve through air pressure operation and is connected with ABS barostat, ABS barostat is connected with gas cap liquid total pump, gas cap liquid total pump is connected with air-pressure brake air chamber, air-pressure brake air chamber is connected with air pressure isolation solenoid valve, and air pressure isolation solenoid valve is connected with brake assemblies with wheel; Running under braking master cylinder is also connected with brake pressure propulsion cylinder through hydraulic isolation solenoid valve, brake pressure propulsion cylinder is connected with two-chamber hydraulic total pump, two-chamber hydraulic total pump is connected with the input hydraulic fluid port of hydraulic pressure regulator, the output oil port of hydraulic pressure regulator is connected with hydraulic isolation solenoid valve, and hydraulic isolation solenoid valve is connected with brake assemblies with wheel.The while of a testing table energy, the function of compatible hydraulic ABS and air pressure ABS, just can make the utilization factor of equipment double.
Description
Technical field
The present invention relates to a kind of inertial test table for test car ABS system.
Background technology
The performance history of automobile ABS system, all will use ABS inertia test stand to make the simulation test in early stage.Because brake system of car is divided into air-pressure brake, hydraulic braking two type according to the difference of conductive medium.The inertial test table generally used so current is also divided into hydraulic pressure inertial test table and air pressure inertial test table two class.Hydraulic pressure inertial test table and air pressure inertial test table difference have 2:
1. system pipeline is different, and air pressure ABS system is all air-pressure ducts, and antilock topworks is 4 ABS barostat A1 ~ A4.Wherein A1 controls the air pressure of air-pressure brake air chamber PQ1, and the piston of PQ1 drives the size of the cam adjustment damping force of (wheel 1) drum brake WH1 by push rod, realize the antilock function of wheel 1.Identical, A2 controls the air pressure of air-pressure brake air chamber PQ2, and the piston of PQ2 drives the size of the cam adjustment damping force of (wheel 2) drum brake WH2 by push rod, realize the antilock function of wheel 2.A3 controls the air pressure of air-pressure brake air chamber PQ3, and the piston of PQ3 drives the size of the cam adjustment damping force of (wheel 3) drum brake WH3 by push rod, realize the antilock function of wheel 3.A4 controls the air pressure of air-pressure brake air chamber PQ4, and the piston of PQ4 drives the size of the cam adjustment damping force of (wheel 4) drum brake WH4 by push rod, realize the antilock function of wheel 4.
Hydraulic ABS system is all conduit under fluid pressures, and antilock topworks is 1 ABS hydraulic regulating valve HCU.HCU controls the size of brake cylinder WH1 ~ WH4 regulating brake force of 4 wheels, realizes antilock function.
2. wheel braking structure is different, and the drum brake of Pneumatic braking system wheel normally cam adjustment, usual wheel volume is larger.Brake fluid system wheel normally brake cylinder regulate drum brake or disc brake, usual wheel small volume.
Air pressure, hydraulic system not being dealt with and is completely contained on an inertial test table, 8 wheels will be installed, also will install throw-over gear additional, losing compatible meaning by making inertial test table volume and complex structure degree greatly increase.
Reference: " electromechanical engineering " the 6th phase in 2004, " automobile ABS drum-type inertia detects the design of stand "; Author: Liu Shaolin, Xu Cangsu, yellow German-Chinese." Information System Engineering " the 03rd phase in 2011, " testing experimental table for vehicle braking performance brief introduction ", author: Chen Chen, Liu Dan.
Summary of the invention
In order to the defect overcoming known hydraulic pressure, air pressure ABS inertia test stand can not be simultaneously compatible, the invention provides the ABS inertia test stand of a kind of air pressure and hydraulic pressure compatibility, the ABS inertia test stand of this air pressure and hydraulic pressure compatibility can carry out air pressure and hydraulic ABS inertia test simultaneously, and the utilization factor of equipment is doubled.
Technical scheme of the present invention is: the ABS inertia test stand of this air pressure and hydraulic pressure compatibility comprises source of the gas, source of the gas is connected with running under braking master cylinder, running under braking master cylinder adds pressure electromagnetic valve through air pressure operation and is connected with ABS barostat, ABS barostat is connected with gas cap liquid total pump, gas cap liquid total pump is connected with air-pressure brake air chamber, air-pressure brake air chamber is connected with air pressure isolation solenoid valve, and air pressure isolation solenoid valve is connected with brake assemblies with wheel; Running under braking master cylinder is also connected with brake pressure propulsion cylinder through hydraulic isolation solenoid valve, brake pressure propulsion cylinder is connected with two-chamber hydraulic total pump, two-chamber hydraulic total pump is connected with the input hydraulic fluid port of hydraulic pressure regulator, the output oil port of hydraulic pressure regulator is connected with hydraulic isolation solenoid valve, and hydraulic isolation solenoid valve is connected with brake assemblies with wheel.
Present invention employs the wheel of the hydraulic brake of 4 small volumes, make equipment volume reach minimum.The scheme of " gas cap liquid " is adopted to achieve the compatibility of air pressure, hydraulic system.Throw-over gear adopts 10 solenoid valves, and device structure is simplified greatly.
Because inertial test table prime cost is rotary drum, drive motor, speed setting controller, wheel etc., compatibility mode makes prime cost for once expense, makes resource obtain Appropriate application, reduces the investment of equipment.
Because inertial test table is mainly used in exploitation, its utilization rate is not high, and the while of a testing table energy, the function of compatible hydraulic ABS and air pressure ABS, just can make the utilization factor of equipment double.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the present of invention.
Embodiment
In FIG, A1, A2, A3, A4 are ABS barostats, HCU is hydraulic pressure regulator, M1 is source of the gas, MQ1, MQ2, MQ3, MQ4 are air pressure isolation solenoid valve, MQ5 is that air pressure operation adds pressure electromagnetic valve, and MY1, MY2, MY3, MY4 are hydraulic isolation solenoid valves, and MY5 is that hydraulic running adds pressure electromagnetic valve.P1, P2, P3, P4 are gas cap liquid total pumps, and P5 is running under braking master cylinder, and PQ1, PQ2, PQ3, PQ4 are air-pressure brake air chambers, and PY1 is two-chamber hydraulic total pump, and PY2 is brake pressure propulsion cylinder, and WH1, WH2, WH3, WH4 are wheel and brake assemblies.
Source of the gas M1 is connected with running under braking master cylinder P5, running under braking master cylinder P5 adds pressure electromagnetic valve MQ5 through air pressure operation and is connected with ABS barostat A1 ~ A4, ABS barostat A1 ~ A4 is corresponding with gas cap liquid total pump P1 ~ P4 to be connected, gas cap liquid total pump P1 ~ P4 is corresponding with air-pressure brake air chamber PQ1 ~ PQ4 to be connected, air-pressure brake air chamber PQ1 ~ PQ4 is corresponding with air pressure isolation solenoid valve MQ1 ~ MQ4 to be connected, and air pressure isolation solenoid valve MQ1 ~ MQ4 is connected with wheel is corresponding with brake assemblies WH1 ~ WH4; Running under braking master cylinder P5 also adds pressure electromagnetic valve MY5 through hydraulic running and is connected with brake pressure propulsion cylinder PY2, brake pressure propulsion cylinder PY2 is connected with two-chamber hydraulic total pump PY1, two-chamber hydraulic total pump PY1 is connected with the input hydraulic fluid port of hydraulic pressure regulator HCU, 4 output oil ports of hydraulic pressure regulator HCU are corresponding with hydraulic isolation solenoid valve MY1 ~ MY4 to be connected, and hydraulic isolation solenoid valve MY1 ~ MY4 is connected with wheel is corresponding with brake assemblies WH1 ~ WH4.
The present invention is at hydraulic pressure regulator HCU and wheel and add hydraulic isolation solenoid valve MY1, MY2, MY3, MY4 between brake assemblies WH1, WH2, WH3, WH4.
With wherein the 1st article of pipeline analysis, the process of air-pressure brake is: source of the gas M1 → running under braking master cylinder P5 → ABS barostat A1 → air-pressure brake air chamber PQ1 → gas cap liquid total pump P1 → air pressure isolation solenoid valve MQ1 → wheel and brake assemblies WH1, realize the power and energy of gas cap liquid.
Hydraulic braking difference is at hydraulic pressure regulator HCU and wheel and to add between brake assemblies wheel WH1, WH2, WH3, WH4 be hydraulic isolation solenoid valve MY1, MY2, MY3, MY4.
Air pressure ABS system and hydraulic system cannot use simultaneously.The ABS inertia test stand of air pressure and hydraulic pressure compatibility employs isolation solenoid valve (or hand valve, lower with) and isolates for this reason.During use hydraulic work system, hydraulic isolation solenoid valve MY1 ~ MY4 energising be made it to connect, hydraulic running adds the energising of pressure electromagnetic valve MY5 liquid and connects (the necessary power-off of MQ1 ~ MQ5).Now make it to connect to running under braking master cylinder P5 reinforcing, the gas of source of the gas just adds pressure electromagnetic valve MY5 by hydraulic running and pressurizes to brake pressure propulsion cylinder PY2, the piston of brake pressure propulsion cylinder PY2 is moved to left and to pressurize to two-chamber hydraulic total pump PY1.The brake fluid of two-chamber hydraulic total pump PY1 to be pressurizeed to brake cylinder wheel and brake assemblies WH1 ~ WH4 by hydraulic isolation solenoid valve MY1 ~ MY4 and implements to brake after ABS hydraulic adjuster HCU regulates.
When using baric systerm work, hydraulic isolation solenoid valve MQ1 ~ MQ4 energising be made it to connect, air pressure runs and adds pressure electromagnetic valve MQ5 and to be also energized connections (MY1 ~ MY5 necessary power-off).Now make it to connect to running under braking master cylinder P5 reinforcing, the gas of source of the gas just adds pressure electromagnetic valve MQ5 by air pressure operation and inflates 4 ABS barostat A1 ~ A4.Wherein ABS barostat A1 controls the air pressure of air-pressure brake air chamber PQ1, the push rod of air-pressure brake air chamber PQ1 promotes gas cap liquid total pump P1, the brake fluid that gas cap liquid total pump P1 exports is by air pressure isolation solenoid valve MQ1 hydraulic control detent wheel and brake assemblies WH1, and wheel and brake assemblies WH1 control the first wheel and realize antilock function.
Identical, ABS barostat A2-air-pressure brake air chamber PQ2-gas cap liquid total pump P2-air pressure isolation solenoid valve MQ2-wheel and brake assemblies WH2-the second wheel, the braking of air pressure.
Claims (1)
1. the ABS inertia test stand of an air pressure and hydraulic pressure compatibility, the ABS inertia test stand of this air pressure and hydraulic pressure compatibility comprises source of the gas, it is characterized in that: source of the gas is connected with running under braking master cylinder, running under braking master cylinder adds pressure electromagnetic valve through air pressure operation and is connected with ABS barostat, ABS barostat is connected with gas cap liquid total pump, gas cap liquid total pump is connected with air-pressure brake air chamber, and air-pressure brake air chamber is connected with air pressure isolation solenoid valve, and air pressure isolation solenoid valve is connected with brake assemblies with wheel; Running under braking master cylinder also adds pressure electromagnetic valve through hydraulic running and is connected with brake pressure propulsion cylinder, brake pressure propulsion cylinder is connected with two-chamber hydraulic total pump, two-chamber hydraulic total pump is connected with the input hydraulic fluid port of hydraulic pressure regulator, the output oil port of hydraulic pressure regulator is connected with hydraulic isolation solenoid valve, and hydraulic isolation solenoid valve is connected with brake assemblies with wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310255941.5A CN103278338B (en) | 2013-06-25 | 2013-06-25 | The ABS inertia test stand of air pressure and hydraulic pressure compatibility |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310255941.5A CN103278338B (en) | 2013-06-25 | 2013-06-25 | The ABS inertia test stand of air pressure and hydraulic pressure compatibility |
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| Publication Number | Publication Date |
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| CN103278338A CN103278338A (en) | 2013-09-04 |
| CN103278338B true CN103278338B (en) | 2015-09-09 |
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| CN201310255941.5A Expired - Fee Related CN103278338B (en) | 2013-06-25 | 2013-06-25 | The ABS inertia test stand of air pressure and hydraulic pressure compatibility |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111477062B (en) * | 2020-04-24 | 2024-06-25 | 浙江众合护航科技有限公司 | Air brake AEBS simulation platform for commercial vehicle for teaching and research |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5292183A (en) * | 1992-06-24 | 1994-03-08 | Russell Carl D | Combination air/hydraulic intermittent braking system |
| JPH10119759A (en) * | 1996-10-18 | 1998-05-12 | Akebono Brake Ind Co Ltd | Brake control device |
| US7976109B2 (en) * | 2003-01-14 | 2011-07-12 | Bwi Company Limited S.A. | Failsafe operation of a hybrid brake system for a vehicle |
| CN201276108Y (en) * | 2008-09-25 | 2009-07-22 | 山东时风（集团）有限责任公司 | Composite braking device system of motor-driven vehicle |
| CN201325446Y (en) * | 2008-12-05 | 2009-10-14 | 山东时风（集团）有限责任公司 | Composite braking mechanism of motor vehicle |
| CN201329864Y (en) * | 2008-12-22 | 2009-10-21 | 山东时风（集团）有限责任公司 | Air-pressure-assisted controller and automotive composite braking mechanism |
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Effective date of registration: 20150928 Address after: 221116 No. 12, Changan Road, Copper Mt. District, Jiangsu, Xuzhou Patentee after: Xuzhou Guanxin Technology Development Co., Ltd. Address before: 221116 No. 12, Changan Road, Copper Mt. District, Jiangsu, Xuzhou Patentee before: Zhang Yuliang |
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Granted publication date: 20150909 Termination date: 20160625 |