CN203587706U - Novel ABS solenoid valve response time detector - Google Patents
Novel ABS solenoid valve response time detector Download PDFInfo
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- CN203587706U CN203587706U CN201320447685.5U CN201320447685U CN203587706U CN 203587706 U CN203587706 U CN 203587706U CN 201320447685 U CN201320447685 U CN 201320447685U CN 203587706 U CN203587706 U CN 203587706U
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- solenoid valve
- wheel normally
- front wheel
- access
- normally closed
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Abstract
The utility model relates to the solenoid valve testing technical field, and aims to provide a novel ABS solenoid valve response time detector; the detector comprises solenoid valves arranged on vehicle wheel cylinders; the eight solenoid valves are mutually independent and not affected by each other, and are parallelly connected into the corresponding wheel cylinders; each solenoid valve current sensor is also parallelly connected into corresponding solenoid valves; the eight solenoid valve sensors are connected with a current acquisition card; obtained current signals are respectively inputted into a background computer system for analysis through the current acquisition card. The detector can collect current changing time when the solenoid valves are opened or closed so as to determine the quality condition of the valves; current acquisition time can reach 5 us; the device substandard product verification and measurement ratio can reach 100% through experiment data analysis.
Description
Technical field
The utility model 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 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.Conventionally, hydraulic control unit very easily damages 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 cannot 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, cannot reach 100% testing requirement at all, be unfavorable in industrial sizable application.Therefore, in industry, generally requiring is at present that machine detects, such as the Chinese utility model patent of the patent No. 200410051363.4 just disclosed a kind of " solenoid valve response time and leakiness automated testing method and device ", this utility model 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 adopting to detect in this way 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 being opened or being closed by valve, and the current value when detecting valve and open or close does not judge the response time, therefore on precision, also has deficiency.
Utility model content
The purpose of this utility model is in order to overcome deficiency of the prior art, and the pick-up unit of a kind of novel ABS solenoid valve response time is provided.
To achieve these goals, the utility model has adopted following technical proposals:
The pick-up unit of novel ABS solenoid valve response time, comprises the solenoid valve being 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;
By the described left rear wheel normally closed solenoid valve of left rear wheel normally closed solenoid valve current sensor access in parallel;
By the described off-front wheel normally open solenoid valve of off-front wheel normally open solenoid valve current sensor access in parallel;
By the described off-front wheel normally closed solenoid valve of off-front wheel normally closed solenoid valve current sensor access in parallel;
By the described off hind wheel normally open solenoid valve of off hind wheel normally open solenoid valve current sensor access in parallel;
By 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 current acquisition card, and the current signal of acquisition is input in the computer system on backstage and is analyzed by current acquisition card respectively.
As further improvement of the utility model, on described device, be also provided with grating protective device.
Mainly the time by valve test pipeline air pressure change judges the quality of valve to prior art; And the utility model is researched and developed specially according to the current characteristics of product to be measured, for product be hydraulic buttery valve, the time of curent change judges the quality of valve when gathering the unlatching of solenoid valve or closing.The current acquisition time of the utility model device can reach 5 microseconds (us), data analysis by experiment, and this device substandard products verification and measurement ratio reaches 100%.
On the utility model device, also can be added with grating protective device, 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 if press beginning testing button, system is not done any action yet, protection people's safety.Grating defencive function is mainly used in the personal safety protection of large-scale pressing equipment; this device is introduced little testing current equipment by this protection scheme; both can protect operating personnel's safe operation; can guarantee that again the test environment of institute's test solenoid valve product in test process is without personnel's manual correction, guarantee the consistance of test products batch.
Accompanying drawing explanation
Fig. 1 is the electrical schematic diagram of the pick-up unit of the utility model ABS solenoid valve response time.
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 boards.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Referring to Fig. 1, the pick-up unit of ABS solenoid valve response time of the present utility model, comprises the solenoid valve being located on automobile wheel cylinder, and periphery also can be equipped with 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;
By the described the near front wheel normally open solenoid valve 5 of the near front wheel normally open solenoid valve current sensor 17 access in parallel;
By the described the near front wheel normally closed solenoid valve 6 of the near front wheel normally closed solenoid valve current sensor 18 access in parallel;
By the described left rear wheel normally open solenoid valve 7 of left rear wheel normally open solenoid valve current sensor 19 access in parallel;
By the described left rear wheel normally closed solenoid valve 8 of left rear wheel normally closed solenoid valve current sensor 20 access in parallel;
By the described off-front wheel normally open solenoid valve 9 of off-front wheel normally open solenoid valve current sensor 21 access in parallel;
By the described off-front wheel normally closed solenoid valve 10 of off-front wheel normally closed solenoid valve current sensor 22 access in parallel;
By the described off hind wheel normally open solenoid valve 11 of off hind wheel normally open solenoid valve current sensor 23 access in parallel;
By the described off hind wheel normally closed solenoid valve 12 of off hind wheel normally closed solenoid valve current sensor 24 access in parallel;
Above-mentioned 8 current sensors are connected with current acquisition card 25, and the current signal of acquisition is input in the computer system on backstage and is analyzed 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 to 8 solenoid valves, give in order 8 solenoid valves power one by one (5-14 lies prostrate direct current); Then by current sense, it gathers electric current, and 100 milliseconds (ms) of each valve power supply judges the quality of this solenoid valve part according to the change curve of the current value of solenoid valve opening and closing and time.
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 utility model pick-up unit in specific embodiment is:
Current sensor parameter: supply voltage: positive and negative 15 volts of direct currents; Measure range: 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 utility model.Obviously, the utility model can also have many distortion, and all distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model, all should think protection domain of the present utility model.
Claims (2)
1. the pick-up unit of novel ABS solenoid valve response time, comprises the solenoid valve being 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);
By the near front wheel normally open solenoid valve current sensor (17) access in parallel described the near front wheel normally open solenoid valve (5);
By the near front wheel normally closed solenoid valve current sensor (18) access in parallel described the near front wheel normally closed solenoid valve (6);
By left rear wheel normally open solenoid valve current sensor (19) access in parallel described left rear wheel normally open solenoid valve (7);
By left rear wheel normally closed solenoid valve current sensor (20) access in parallel described left rear wheel normally closed solenoid valve (8);
By off-front wheel normally open solenoid valve current sensor (21) access in parallel described off-front wheel normally open solenoid valve (9);
By off-front wheel normally closed solenoid valve current sensor (22) access in parallel described off-front wheel normally closed solenoid valve (10);
By off hind wheel normally open solenoid valve current sensor (23) access in parallel described off hind wheel normally open solenoid valve (11);
By 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 obtaining is input in the computer system on backstage and is analyzed 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, is also provided with grating protective device on described device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320447685.5U CN203587706U (en) | 2013-07-23 | 2013-07-23 | Novel ABS solenoid valve response time detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320447685.5U CN203587706U (en) | 2013-07-23 | 2013-07-23 | Novel ABS solenoid valve response time detector |
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| Publication Number | Publication Date |
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| CN203587706U true CN203587706U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320447685.5U Expired - Fee Related CN203587706U (en) | 2013-07-23 | 2013-07-23 | Novel ABS solenoid valve response time detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103399224A (en) * | 2013-07-23 | 2013-11-20 | 万向钱潮股份有限公司 | Novel ABS (antilock brake system) electromagnetic valve response time detection device |
| CN104296981A (en) * | 2014-10-13 | 2015-01-21 | 太仓越华精密机械配件有限公司 | Switching valve testing system |
-
2013
- 2013-07-23 CN CN201320447685.5U patent/CN203587706U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103399224A (en) * | 2013-07-23 | 2013-11-20 | 万向钱潮股份有限公司 | Novel ABS (antilock brake system) electromagnetic valve response time detection device |
| CN104296981A (en) * | 2014-10-13 | 2015-01-21 | 太仓越华精密机械配件有限公司 | Switching valve testing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20190723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |