CN103399224A - Novel ABS (antilock brake system) electromagnetic valve response time detection device - Google Patents
Novel ABS (antilock brake system) electromagnetic valve response time detection device Download PDFInfo
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- CN103399224A CN103399224A CN2013103164371A CN201310316437A CN103399224A CN 103399224 A CN103399224 A CN 103399224A CN 2013103164371 A CN2013103164371 A CN 2013103164371A CN 201310316437 A CN201310316437 A CN 201310316437A CN 103399224 A CN103399224 A CN 103399224A
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Abstract
The invention relates to the technical field of electromagnetic valve detection, and the purpose of the invention is to provide a novel ABS electromagnetic valve response time detection device. The device comprises eight electromagnetic valves arranged on automobile wheel cylinders, and the eight electromagnetic valves are independent from one another, not affecting one another, and are respectively connected in parallel with the respective automobile wheel cylinders; electromagnetic valve current sensors are also respectively connected in parallel with the electromagnetic valves, the eight electromagnetic valve current sensors are connected with a current acquisition card, and acquired current signals are respectively inputted into a background computer system via the current acquisition card to be analyzed. By acquiring current changes as the electromagnetic valves are opened or closed, the device judges whether the valves are in the good or bad condition, the current acquisition time can be up to 5 microseconds (Mu s), and by analyzing experimental data, the defective product detection rate of the device can reach 100 percent.
Description
Technical field
The present invention relates to the technical field of measurement and test of solenoid valve, specifically, is the pick-up unit of a kind of novel ABS solenoid valve response time.
Background technology
ABS EHCU is the payment finished product that ABS components supplying business offers car load factory.ABS(Antilock brake system) be called anti-lock braking system, EHCU(Electric Hydraulic Control Unit) be called the electro-hydraulic control module, this product comprises electronic control unit and hydraulic control unit, and wherein hydraulic control unit is comprised of solenoid valve and motor.Usually, hydraulic control unit very easily damages the solenoid valve part in assembling process, and the slight damage of solenoid valve, capital has a strong impact on the serviceability of solenoid valve, but people's naked eyes can't recognize the slight damage of valve body easily, moreover if whether only rely on the subjective judgement of human eye to detect substandard products, its risk controllability is very poor, can't reach 100% testing requirement at all, be unfavorable in industrial sizable application.Therefore, generally requiring on industry at present is that machine detects, such as the Chinese invention patent of the patent No. 200410051363.4 just disclosed a kind of " solenoid valve response time and leakiness automated testing method and device ", this invention is mainly the ability of opening and the leak case that the time by the gas pressure change of testing valve pipeline judges valve, but adopt this method to do to detect, also has following deficiency:
1, this method of testing can only for be air pressure valve, can not be for the product of hydraulic valve.
2, this test is that the variation of hydrodynamic pressure detects response valve time and leakage when by valve, opening or closing, and the current value when detecting valve and open or close does not judge the response time, therefore also has deficiency on precision.
Summary of the invention
The objective of the invention is in order to overcome deficiency of the prior art, the pick-up unit of a kind of novel ABS solenoid valve response time is provided.
To achieve these goals, the present invention has adopted following technical proposals:
The pick-up unit of a kind of novel ABS solenoid valve response time, comprise the solenoid valve that is located on automobile wheel cylinder, is specially:
The near front wheel normally open solenoid valve and the near front wheel normally closed solenoid valve access in parallel the near front wheel wheel cylinder;
Left rear wheel normally open solenoid valve and left rear wheel normally closed solenoid valve access in parallel left rear wheel wheel cylinder;
Off-front wheel normally open solenoid valve and off-front wheel normally closed solenoid valve access in parallel off-front wheel wheel cylinder;
Off hind wheel normally open solenoid valve and off hind wheel normally closed solenoid valve access in parallel off hind wheel wheel cylinder;
With the described left rear wheel normally closed solenoid valve of left rear wheel normally closed solenoid valve current sensor access in parallel;
With the described off-front wheel normally open solenoid valve of off-front wheel normally open solenoid valve current sensor access in parallel;
With the described off-front wheel normally closed solenoid valve of off-front wheel normally closed solenoid valve current sensor access in parallel;
With the described off hind wheel normally open solenoid valve of off hind wheel normally open solenoid valve current sensor access in parallel;
With the described off hind wheel normally closed solenoid valve of off hind wheel normally closed solenoid valve current sensor access in parallel;
Above-mentioned 8 current sensors are connected with the current acquisition card, and the current signal that obtains is input in the computer system on backstage and analyzes by the current acquisition card respectively.
As a further improvement on the present invention, also be provided with the grating protective device on described device.
Mainly the time by valve test pipeline air pressure change judges the quality of valve to prior art; And the present invention researches and develops specially according to the current characteristics of product to be measured, for product be hydraulic buttery valve, the unlatching by gathering solenoid valve or while closing the time of curent change judge the quality of valve.The current acquisition time of apparatus of the present invention can reach 5 microseconds (us), data analysis by experiment, and this device substandard products verification and measurement ratio reaches 100%.
Also can be added with the grating protective device on apparatus of the present invention, while preventing that staff from putting in the indoor renewal part of Assembly of the parts, the moving testing button that starts of false touch; that is: when staff is in assembly room; even press the beginning testing button, system is not done any action yet, protection people's safety.The grating defencive function is mainly used in the personal safety protection of large-scale pressing equipment; this device is introduced little testing current equipment with this protection scheme; both can protect operating personnel's safe operation; can guarantee again the institute's test environment of test solenoid valve product in test process without personnel's manual correction, guarantee the consistance of test products batch.
Description of drawings
Fig. 1 is the electrical schematic diagram of the pick-up unit of ABS solenoid valve response time of the present invention.
in figure: 1 left oil pump, 2 right oil pumps, 3 left accumulators, 4 right accumulators, 5 the near front wheel normally open solenoid valves, 6 the near front wheel normally closed solenoid valves, 7 left rear wheel normally open solenoid valves, 8 left rear wheel normally closed solenoid valves, 9 off-front wheel normally open solenoid valves, 10 off-front wheel normally closed solenoid valves, 11 off hind wheel normally open solenoid valves, 12 off hind wheel normally closed solenoid valves, 13 left front wheel cylinders, 14 left back wheel cylinders, 15 right front wheel cylinders, 16 right back wheel cylinders, 17 the near front wheel normally open solenoid valve current sensors, 18 the near front wheel normally closed solenoid valve current sensors, 19 left rear wheel normally open solenoid valve current sensors, 20 left rear wheel normally closed solenoid valve current sensors, 21 off-front wheel normally open solenoid valve current sensors, 22 off-front wheel normally closed solenoid valve current sensors, 23 off hind wheel normally open solenoid valve current sensors, 24 off hind wheel normally closed solenoid valve current sensors, 25 current acquisition integrated circuit boards.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, the pick-up unit of ABS solenoid valve response time of the present invention, comprise the solenoid valve that is located on automobile wheel cylinder, and periphery also can be equipped with the grating protective device; Its electrical connection method is described below:
5-12 part in Fig. 1 is solenoid valve, these 8 separate being independent of each other of solenoid valve; Wherein:
The near front wheel normally open solenoid valve 5 and the near front wheel normally closed solenoid valve 6 access the near front wheel in parallel wheel cylinder 13;
Left rear wheel normally open solenoid valve 7 and left rear wheel normally closed solenoid valve 8 access left rear wheel in parallel wheel cylinder 14;
Off-front wheel normally open solenoid valve 9 and off-front wheel normally closed solenoid valve 10 access off-front wheel in parallel wheel cylinder 15;
Off hind wheel normally open solenoid valve 11 and off hind wheel normally closed solenoid valve 12 access off hind wheel in parallel wheel cylinder 16;
With the near front wheel normally open solenoid valve current sensor 17 described the near front wheel normally open solenoid valves 5 of access in parallel;
With the near front wheel normally closed solenoid valve current sensor 18 described the near front wheel normally closed solenoid valves 6 of access in parallel;
With the left rear wheel normally open solenoid valve current sensor 19 described left rear wheel normally open solenoid valves 7 of access in parallel;
With the left rear wheel normally closed solenoid valve current sensor 20 described left rear wheel normally closed solenoid valves 8 of access in parallel;
With the off-front wheel normally open solenoid valve current sensor 21 described off-front wheel normally open solenoid valves 9 of access in parallel;
With the off-front wheel normally closed solenoid valve current sensor 22 described off-front wheel normally closed solenoid valves 10 of access in parallel;
With the off hind wheel normally open solenoid valve current sensor 23 described off hind wheel normally open solenoid valves 11 of access in parallel;
With the off hind wheel normally closed solenoid valve current sensor 24 described off hind wheel normally closed solenoid valves 12 of access in parallel;
Above-mentioned 8 current sensors are connected with current acquisition card 25, and the current signal that obtains is input in the computer system on backstage and analyzes by current acquisition card 25 respectively.
Because each part of to be measured is separate, and be passive module, therefore adopt method of testing one by one to judge the quality of part.
Method of testing and criterion are described as: 8 current sensors are sealed in 8 solenoid valves, give in order 8 solenoid valves power one by one (5-14 lies prostrate direct current); Then it gathers electric current by current sense, 100 milliseconds (ms) of each valve power supply, the quality that judges this solenoid valve part according to current value and the change curve of time of solenoid valve opening and closing.
Criterion is: give 2 milliseconds of (ms) interior Current Zone of solenoid valve, if surpass 2 milliseconds (ms), do not occur that sudden change is considered as extremely.
The parameters of the pick-up unit of the present invention in specific embodiment is:
Current sensor parameter: supply voltage: positive and negative 15 volts of direct currents; Measure range: the 0-20 ampere; The electric current sensitive time: 10 microseconds.
Solenoid valve parameter: conduction impedance: 4.1 ohm; Solenoid valve firing current: 1 ampere; The solenoid valve turn-off response time: 100 microseconds.
Current acquisition card parameter: analog input port: 24 passages; Frequency acquisition: 2 KHz; Supply voltage :+5V direct current; Communication mode: USB.
Wheel cylinder parameter: 4 tyre brakes of automobile; Braking medium: hydraulic pressure+friction disc.
Finally, it is also noted that, what more than enumerate is only a specific embodiment of the present invention.Obviously, the present invention can also have many distortion, and all distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention, all should think protection scope of the present invention.
Claims (2)
1. the pick-up unit of a novel ABS solenoid valve response time, comprise the solenoid valve that is located on automobile wheel cylinder, it is characterized in that,
The near front wheel normally open solenoid valve (5) and the near front wheel normally closed solenoid valve (6) access in parallel the near front wheel wheel cylinder (13);
Left rear wheel normally open solenoid valve (7) and left rear wheel normally closed solenoid valve (8) access in parallel left rear wheel wheel cylinder (14);
Off-front wheel normally open solenoid valve (9) and off-front wheel normally closed solenoid valve (10) access in parallel off-front wheel wheel cylinder (15);
Off hind wheel normally open solenoid valve (11) and off hind wheel normally closed solenoid valve (12) access in parallel off hind wheel wheel cylinder (16);
With the near front wheel normally open solenoid valve current sensor (17) access in parallel described the near front wheel normally open solenoid valve (5);
With the near front wheel normally closed solenoid valve current sensor (18) access in parallel described the near front wheel normally closed solenoid valve (6);
With left rear wheel normally open solenoid valve current sensor (19) access in parallel described left rear wheel normally open solenoid valve (7);
With left rear wheel normally closed solenoid valve current sensor (20) access in parallel described left rear wheel normally closed solenoid valve (8);
With off-front wheel normally open solenoid valve current sensor (21) access in parallel described off-front wheel normally open solenoid valve (9);
With off-front wheel normally closed solenoid valve current sensor (22) access in parallel described off-front wheel normally closed solenoid valve (10);
With off hind wheel normally open solenoid valve current sensor (23) access in parallel described off hind wheel normally open solenoid valve (11);
With off hind wheel normally closed solenoid valve current sensor (24) access in parallel described off hind wheel normally closed solenoid valve (12);
Above-mentioned 8 current sensors are connected with current acquisition card (25), and the current signal that obtains is input in the computer system on backstage and analyzes by current acquisition card (25) respectively.
2. the pick-up unit of novel ABS solenoid valve response time according to claim 1, is characterized in that, also is provided with the grating protective device on described device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103164371A CN103399224A (en) | 2013-07-23 | 2013-07-23 | Novel ABS (antilock brake system) electromagnetic valve response time detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103164371A CN103399224A (en) | 2013-07-23 | 2013-07-23 | Novel ABS (antilock brake system) electromagnetic valve response time detection device |
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| CN103399224A true CN103399224A (en) | 2013-11-20 |
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| CN2013103164371A Pending CN103399224A (en) | 2013-07-23 | 2013-07-23 | Novel ABS (antilock brake system) electromagnetic valve response time detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648021A (en) * | 2020-11-30 | 2021-04-13 | 华电电力科学研究院有限公司 | Steam turbine AST electromagnetic valve activity test device and online maintenance and transformation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2210438A (en) * | 1987-10-02 | 1989-06-07 | Lucas Ind Plc | Improvements in solenoid-operated fluid-flow control valve assemblies |
| CN1609737A (en) * | 2004-09-03 | 2005-04-27 | 深圳迈瑞生物医疗电子股份有限公司 | Automatic testing method and apparatus for electromagnetic valve response time and leakage extent |
| CN103192248A (en) * | 2013-04-09 | 2013-07-10 | 苏州工业职业技术学院 | Riveting assembly machine |
| CN203587706U (en) * | 2013-07-23 | 2014-05-07 | 万向钱潮股份有限公司 | Novel ABS solenoid valve response time detector |
-
2013
- 2013-07-23 CN CN2013103164371A patent/CN103399224A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2210438A (en) * | 1987-10-02 | 1989-06-07 | Lucas Ind Plc | Improvements in solenoid-operated fluid-flow control valve assemblies |
| CN1609737A (en) * | 2004-09-03 | 2005-04-27 | 深圳迈瑞生物医疗电子股份有限公司 | Automatic testing method and apparatus for electromagnetic valve response time and leakage extent |
| CN103192248A (en) * | 2013-04-09 | 2013-07-10 | 苏州工业职业技术学院 | Riveting assembly machine |
| CN203587706U (en) * | 2013-07-23 | 2014-05-07 | 万向钱潮股份有限公司 | Novel ABS solenoid valve response time detector |
Non-Patent Citations (1)
| Title |
|---|
| 王会义 等: "汽车ABS电磁阀动作响应测试与分析", 《汽车工程》, vol. 24, no. 1, 31 December 2002 (2002-12-31) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648021A (en) * | 2020-11-30 | 2021-04-13 | 华电电力科学研究院有限公司 | Steam turbine AST electromagnetic valve activity test device and online maintenance and transformation method thereof |
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Application publication date: 20131120 |