CN203412735U - Novel testing device of ESP/ABS (electronic stability program)/(anti-locked braking system) pump - Google Patents
Novel testing device of ESP/ABS (electronic stability program)/(anti-locked braking system) pump Download PDFInfo
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- CN203412735U CN203412735U CN201220741127.5U CN201220741127U CN203412735U CN 203412735 U CN203412735 U CN 203412735U CN 201220741127 U CN201220741127 U CN 201220741127U CN 203412735 U CN203412735 U CN 203412735U
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Abstract
The utility model relates to testing devices in the automobile field and aims at providing a novel testing device of an ESP/ABS (electronic stability program)/(anti-locked braking system) pump. The novel testing device comprises a pump unit to be tested, wherein the pump unit to be tested is connected with an oil feeding part of oil pump, an oil discharging pressure adjusting part, a flow rate measuring part and an industrial personal computer part. According to the novel testing device of the ESP/ABS pump, which is disclosed by the utility model, the test on a single oil pump unit can be carried out without utilizing an assembly as a testing piece; the failure of an ABS pump and an energy accumulator component can be predicted in advance, so that the failure risk is reduced, the complexity of software and hardware is reduced and the cost is further reduced; the testing process is simplified, the testing period is shortened, the testing difficulty is reduced, the collected data is more reliable, and the testing accuracy is higher.
Description
Technical field
The utility model relates to the testing apparatus of automotive field, specifically, is a kind of testing apparatus of novel ESP/ABS pump.
Background technique
ABS (Anti-locked Braking System anti-lock braking system) is a kind of vehicle safety control system with anti-skidding, the anti-lock advantage of waiting indefinitely; ESP (Elecronic Stability Program electric stabilizing system) is a part for active safety systems of vehicles, is the software of a kind of anti-sideslip.Anti-lock braking system in automobiles/electronic stability program of automobile (ESP/ABS) has increase Study on Vehicle Braking Stability, shortens stopping distance, improves the advantages such as tire wear state, the Security that has greatly improved automobile brake.Wherein pump is the critical component of this system, is to realize the execution architecture that wheel brake pressure regulates; By the action of pump, can realize the reduction of wheel brake pressure, prevent the locking of wheel.In the failure mode of ESP/ABS system, the probability of oil pump failure is larger, occurs that the consequence losing efficacy is serious, and therefore the Performance And Reliability for oil pump requires higher.
In the exploitation of ESP/ABS, the design of oil pump and verification experimental verification are most important, for ESP/ABS oil pump performance and experimental test, require also there is no at present the world, domestic standard, and this has brought difficulty for the such testing apparatus of designing and making undoubtedly.At present in design experiment stand, mainly reference is the technical specification of oil hydraulic pump, such as GB/T17491 < < oil hydraulic pump, the mensuration > > of motor and whole transmission device stability and GB7936-87 < < oil hydraulic pump, the unloaded discharge capacity determining method of motor > > etc., but these method of measurement are only applicable to the oil hydraulic pump of large discharge capacity, and that ESP/ABS pump has discharge capacity is little, flow output is difficult to accurate acquisition, simultaneously motor speed is unstable and be not easy the defect existence such as accurately measurements.It is leading that the ESP/ABS producer of current main flow is external several company, such as BOSCH, Continental, TRW etc., their design verification is all carried out abroad, the domestic design verification scheme that seldom has document to mention their ESP/ABS pump, domestic autonomous producer only does testing property to ESP/ABS assembly conventionally simultaneously, and abs pump is just carried out to simple testing property.Relevant patent documentation has at present: CN202330028 " ABS/ESP durability test device "; Patent ZL200620163902.8 " vehicle ABS dynamic simulation testing bench "; Patent ZL200420025738.5 " performance of ABS test bench " etc., but all also there is following shortcoming in test bench in these patents:
1. these test stands are expensive, operation and maintenance cost is high, be also difficult to meet the requirement of testing single oil pump unit simultaneously.For example in the durability test of oil pump, need under different inlet pressures, different oil pump outlet pressure, carry out the test of hundreds of thousands time, be easy to destructive test stand in this case.
2. test specimen need to be used ESP/ABS assembly, need to after ESP/ABS assembly has been developed, could test its pump, has wasted the valuable development time.
3. test bench needs software, hardware are complicated, cost is high, and stand development difficulty is large.
4. to have be all much to obtain by indirectly testing to the test data of pair pump, is subject to pilot process variable, the impact of collecting device data transfer etc., and test result accuracy is not high.
5. test process is consuming time too much, and complicated operation has increased the difficulty of testing.
6. the oiler pressure in the efficiency of test pump need to be adjustable continuously in the scope of-1.0～6.0Bar, and general ESP/ABS assembly testboard bay all need to be taken out brake fluid from accumulator, but the scope of cannot the meet-1.0～6.0Bar of oiler pressure of ABS oil pump is adjustable continuously.
Summary of the invention
The utility model object is in order to overcome deficiency of the prior art, and a kind of testing apparatus of novel ESP/ABS pump is provided.
The technical solution of the utility model is as follows:
The testing apparatus of ESP/ABS pump, comprise tested pump testing unit, each unit comprises 2 oil pumps and 1 drive motor, the described tested pump testing unit oil pump oil-feed part of also ining succession mutually; Adjustable fuel-displaced pressure portion; Flow measurement part and process control machine part;
Described oil pump oil-feed part: comprise connected air pressure pressure regulator valve, airtight liquid storage barrel, reduction valve, pressure transducer, hand stop valve, throttle valve and hydraulicdirectional control valve; For the oil pressure that enters of simulating ABS/ESP oil pump reality;
Described adjustable fuel-displaced pressure portion: comprise successively connected hydraulic pressure pressure regulator valve, pressure transducer, safety valve; For adjusting continuously hydraulic fluid port pressure;
Described flow measurement part: comprise for simulating simulation cavity volume and the resetting-mechanism with displacement transducer of ABS accumulator; The area that reading by detecting position displacement sensor is multiplied by simulation accumulator just can obtain the real-time traffic that oil pump is exported;
Described process control machine part: comprise computer, display device, data collecting card, ABS ECU CAN communication card; For each solenoid valve on test-bed is controlled, each sensor is carried out to data acquisition and processing (DAP), testboard bay is monitored, and communicated with ECU;
As a kind of preferred, the input pressure adjustable extent of described oil pump oil-feed part is at-1.0～6.0bar (relative pressure).
As a kind of preferably, described adjustable fuel-displaced pressure portion go out oil pressure adjustable extent at 0～250bar (relative pressure).
As a kind of preferred, the resetting-mechanism of described flow measurement part is spring mechanism; Described displacement transducer is the high accuracy displacement sensor of readable negative.
Adopt the utility model can test directly, accurately and rapidly the tests such as ESP/ABS pump performance efficiency, response time, durability; Compared to existing technology, the beneficial effect that the utility model brings has:
(1) adopt after the technical program, without doing test block with assembly, the inefficacy energy look-ahead to abs pump and accumulator part part, reduces failure risk.
(2) simplify test process, shortened test period, reduced difficulty of test.
(3) reduce the complexity of software and hardware, reduced cost.
(4) data that gather are more reliable, and test accuracy is higher.
Accompanying drawing explanation
Fig. 1 is the three dimensional arrangement figure of the testing apparatus of the utility model ESP/ABS pump;
Fig. 2 is the test logic block diagram in Fig. 1;
Fig. 3 is the test philosophy figure in Fig. 1;
Fig. 4 is the electric control theory figure in Fig. 1.
In figure: 1 airtight liquid storage barrel (fuel tank); 2 gas pressure regulating valves; 3 atmospheric pressure tables; 4 return filters; 5 one-way valves; 6 oil absorption filters; 7 reduction valve; 8,9 manually operated valves; 10 throttle valve; 11,12 pressure transducers; 13 selector valves; 14 motor current sensors; 15 tested pump testing unit (each assembly comprises 2 oil pump unit and 1 drive motor); 16 simulation steel cylinders; 17,18 pressure transducers; 19 simulation steel cylinders; 20 manually operated valves; 21 pressure gauges; 22,23 manual relief valves; 24, the 25 simulation cavity volumes with displacement transducer; 26 manual switch valves; 27 electric switching valves; 28 manual fuel outlet valves.
Embodiment:
Below in conjunction with accompanying drawing 1,2,3,4 and embodiment, the utility model is described in detail
The testing apparatus of ESP/ABS pump of the present utility model, comprises tested pump testing unit 15, and each unit comprises 2 oil pumps and 1 drive motor, the tested pump testing unit 15 oil pump oil-feed part of also ining succession mutually; Adjustable fuel-displaced pressure portion; Flow measurement part and process control machine part.
Input pressure can regulate the ABS/ESP oil pump oil-feed part of (relative pressure-1.0～6.0bar), and it is for simulating the oil pressure that enters of ABS/ESP oil pump reality.When in braking process, ABS operation of oil pump, participation brake fluid pressure regulate, oil pump need to be found time brake fluid from ABS accumulator, now the pressure of oil pump entrance is 2～4Bar, so on oil pump oiler loop, selected a reduction valve 7, for by 6Bar from airtight liquid storage barrel 1 hydraulic coupling out, be adjusted to desirable scope among; When in braking process, ESP plays a role, oil pump need to be inhaled brake fluid from master cylinder oil can, flow damping effect due to fluid, now damping constant along with the difference of the complexity of the pipeline of each automobile difference, fluid to the relative atmospheric pressure of pressure time ABS/ESP oil pump oiler between-0.1bar～-0.25bar, so selected a throttle valve 10 at oil pump oiler, for regulating the hydraulic coupling of oil pump oiler for negative.
Go out the part that oil pressure (adjustable extent 0～250bar) can regulate, when in braking process, ABS operation of oil pump, participation brake fluid pressure regulate, oil pump need to be retracted to brake fluid on the loop of master cylinder oil outlet from ABS accumulator, and now the pressure of oil pump oil outlet is generally less than 250bar; In the utility model device, selected a hydraulic pressure pressure regulator valve, for the continuous hydraulic fluid port pressure that adjusts.
Flow measurement partly comprises for simulating a kind of simulation cavity volume 24 and 25 with displacement transducer being comprised of liquid-storage container, high accuracy displacement sensor and resetting-mechanism of ABS accumulator, 2 simulation cavity volumes are just the same, what be a shape as injector is cylindric, mounted inside has piston, and displacement transducer is installed on piston; The area that reading by detecting position displacement sensor is multiplied by simulation accumulator just can obtain the real-time traffic that oil pump is exported.
Process control machine part computer, display device, data collecting card, ABS ECU CAN communication card; For each solenoid valve on test-bed is controlled, control the drive motor of ABS/ESP HCU oil pump startup, stop and according to the rotation speed operation of setting; For carrying out communication with ECU, each sensor is carried out to data acquisition and processing (DAP), testboard bay is monitored.
Conventionally ESP/ABS oil pump test event has the efficiency, flow, response time of oil pump etc., is briefly described the utility model device below and how carries out the testing property of ESP/ABS oil pump:
(1) the flow Q1 of ABS oil pump under different inlet pressures (0～4.0bar), different electrical power voltage, different outlet pressure and the test of volumetric efficiency u.
The object of test:
Can checking oil pump meet the lowest displacement requirement of ABS system, timely the fluid in accumulator is taken away.
Test method:
(a) shop air is entered to airtight liquid storage barrel 1 through air pressure pressure regulator valve 2, make barrel inner fluid reach the pressure of 6bar;
(b) by selector valve 13 power-off, then close manually operated valve 8 and open manually operated valve 9, make fluid enter tested pump testing unit 15 from manually operated valve 9 and pressure transducer 12;
(a) by reduction valve 7, regulate the inlet pressure of 2 oil pumps in tested pump testing unit 15, and read force value size by pressure transducer 12;
(b) motor that ABS carries drives oil pump fluid to be pumped into the entrance of manual relief valve 22 and 23, regulates in advance the oil pressure relief of manual relief valve, namely sets the outlet pressure of oil pump; If oil pump normal operation, when the outlet pressure of oil pump surpasses oil pressure relief, oil pump by fluid pump in the simulation cavity volume 24 and 25 with displacement transducer; 24 and 25 to be all a shape as injector cylindric, and mounted inside has piston, and displacement transducer is installed on piston; If piston area is A, by displacement transducer being carried out to reading, be s (t), can draw instantaneous flow Q
1=Ads (t); Because the theoretical delivery of oil pump can calculate Q
0so, can draw the volumetric efficiency of oil pump
(2) discharge capacity of ESP oil pump under different inlet pressures (1.0～4.0bar), different electrical power voltage, different outlet pressure and the test of volumetric efficiency.
The object of test:
Can checking oil pump meet the lowest displacement requirement of ESP system, timely the fluid in accumulator is taken away.
Test method:
(a) shop air is entered to airtight liquid storage barrel 1 through air pressure pressure regulator valve 2, make barrel inner fluid reach the pressure of 6bar;
(b) by selector valve 13 power-off, then close manually operated valve 9 and open manually operated valve 8, make fluid enter tested pump testing unit 15 from manually operated valve 8, throttle valve 10 and pressure transducer 11;
(a) by throttle valve 10, for simulating ESP pump, at reduction valve, be failure to actuate, oil pump need to be inhaled oil condition from oil can; Throttle valve 10 regulates the inlet pressure of 2 oil pumps in tested pump testing unit 15 at-150～-350mbar, by pressure transducer 11, reads force value size;
(b) motor that ABS carries drives oil pump fluid to be pumped into the entrance of manual relief valve 22 and 23, regulates in advance the oil pressure relief of manual relief valve, namely sets the outlet pressure of oil pump; If oil pump normal operation, when the outlet pressure of oil pump surpasses oil pressure relief, oil pump by fluid pump in the simulation cavity volume 24 and 25 with displacement transducer; 24 and 25 to be all a shape as injector cylindric, and mounted inside has piston, and displacement transducer is installed on piston; If piston area is A, by displacement transducer being carried out to reading, be s (t), can draw instantaneous flow Q
1=Ads (t); Because the theoretical delivery of oil pump can calculate Q
0so, can draw the volumetric efficiency of oil pump
Finally, it should be noted that, the specific embodiment described in this specification, its flow process, title that technology contents is named etc. can be different.All equivalence or simple change of doing according to described structure, feature and the principle of the utility model patent design, are included in the protection domain of the utility model patent.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 (4)
1. a testing apparatus for novel ESP/ABS pump, comprises tested pump testing unit (15), and each unit comprises 2 oil pumps and 1 drive motor, it is characterized in that described tested pump testing unit (15) the oil pump oil-feed part of also ining succession mutually; Adjustable fuel-displaced pressure portion; Flow measurement part and process control machine part;
Described oil pump oil-feed part: comprise connected air pressure pressure regulator valve (2), airtight liquid storage barrel (1), reduction valve (7), pressure transducer (11,12), hand stop valve (8,9), throttle valve (10) and hydraulicdirectional control valve (13); For the oil pressure that enters of simulating ABS/ESP oil pump reality;
Described adjustable fuel-displaced pressure portion: comprise successively connected hydraulic pressure pressure regulator valve (22,23), pressure transducer (17,18), safety valve (29); For adjusting continuously hydraulic fluid port pressure;
Described flow measurement part: comprise the simulation cavity volume with displacement transducer (24,25) and resetting-mechanism for simulating ABS accumulator; The area that reading by detecting position displacement sensor is multiplied by simulation accumulator just can obtain the real-time traffic that oil pump is exported;
Described process control machine part: comprise computer, display device, data collecting card, ABS ECU CAN communication card; For each solenoid valve on test-bed is controlled, each sensor is carried out to data acquisition and processing (DAP), testboard bay is monitored, and communicated with ECU.
2. the testing apparatus of novel ESP/ABS pump according to claim 1, is characterized in that, the input pressure adjustable extent of described oil pump oil-feed part is at the relative pressure of-1.0～6.0bar.
3. the testing apparatus of novel ESP/ABS pump according to claim 1, is characterized in that, described adjustable fuel-displaced pressure portion go out oil pressure adjustable extent at the relative pressure of 0～250bar.
4. the testing apparatus of novel ESP/ABS pump according to claim 1, is characterized in that, the resetting-mechanism of described flow measurement part is spring mechanism; Described displacement transducer is the high accuracy displacement sensor of readable negative.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220741127.5U CN203412735U (en) | 2012-12-28 | 2012-12-28 | Novel testing device of ESP/ABS (electronic stability program)/(anti-locked braking system) pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220741127.5U CN203412735U (en) | 2012-12-28 | 2012-12-28 | Novel testing device of ESP/ABS (electronic stability program)/(anti-locked braking system) pump |
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| CN203412735U true CN203412735U (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220741127.5U Expired - Fee Related CN203412735U (en) | 2012-12-28 | 2012-12-28 | Novel testing device of ESP/ABS (electronic stability program)/(anti-locked braking system) pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047126A (en) * | 2012-12-28 | 2013-04-17 | 万向钱潮（上海）汽车系统有限公司 | Novel device and method for testing ESP (electronic stability program) /ABS (anti-lock brake system) pumps |
| CN106124223A (en) * | 2016-07-21 | 2016-11-16 | 浙江万向精工有限公司 | ABS ESC performance testing device and method |
| CN115959108A (en) * | 2023-01-09 | 2023-04-14 | 上海拿森汽车电子有限公司 | Method for testing pump flow of automobile braking system and testing system |
-
2012
- 2012-12-28 CN CN201220741127.5U patent/CN203412735U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047126A (en) * | 2012-12-28 | 2013-04-17 | 万向钱潮（上海）汽车系统有限公司 | Novel device and method for testing ESP (electronic stability program) /ABS (anti-lock brake system) pumps |
| CN103047126B (en) * | 2012-12-28 | 2015-05-13 | 万向钱潮（上海）汽车系统有限公司 | Method for testing ESP (electronic stability program) /ABS (anti-lock brake system) pumps |
| CN106124223A (en) * | 2016-07-21 | 2016-11-16 | 浙江万向精工有限公司 | ABS ESC performance testing device and method |
| CN115959108A (en) * | 2023-01-09 | 2023-04-14 | 上海拿森汽车电子有限公司 | Method for testing pump flow of automobile braking system and testing system |
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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 |
Granted publication date: 20140129 Termination date: 20181228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |