CN204085894U - A kind of proving installation of variable valve system - Google Patents
A kind of proving installation of variable valve system Download PDFInfo
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- CN204085894U CN204085894U CN201420515688.2U CN201420515688U CN204085894U CN 204085894 U CN204085894 U CN 204085894U CN 201420515688 U CN201420515688 U CN 201420515688U CN 204085894 U CN204085894 U CN 204085894U
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- valve
- oil
- sump
- variable
- solenoid valve
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- Testing Of Engines (AREA)
Abstract
A kind of proving installation of variable valve system, valve actuating mechanism drive system is arranged on paralell: motor is connected with oil pump, oil pump import is connected with sump, fuel pump outlet is connected with the oil inlet pipe of surplus valve, accumulator and solenoid valve by the road in turn, the overflow vent of surplus valve is communicated with sump, solenoid valve first outlet is communicated with the hydraulic piston cylinder in variable air valve lift range mechanism, and solenoid valve second outlet is communicated with sump; This device not only can study the affecting laws of key structural parameters for valve timing of variable valve system, can also demarcate and optimize each values of the structural parameters, and cold breaking in experiment is carried out to key components and parts, guarantee the functional reliability of part, for test variable valve system provides a convenience, reliably experiment porch.
Description
Technical field
The utility model relates to the proving installation of engine variable-valve system, is used as specifically to demarcate the key structural parameters of variable valve system, optimize and crucial zero device carried out to the experiment test device of cold breaking in.
Background technology
Chinese patent literature CN201210592547.6(applicant: Hyundai automatic vehicle Co., Ltd.) disclose one " for detecting system and the detection method thereof of the fault of variable air valve lift apparatus ", this system comprises, engine, this engine is provided with variable air valve lift apparatus to control the lift of valve; Vibration transducer: for detecting the vibration that above-mentioned valve produces when closed and the vibration signal exporting correspondence; And control section: receive vibration signal, according to the fault of the vibration signal determination variable air valve lift apparatus detected in predetermined crankangle.
This patent, only from the single vibration signal produced during valve closure to judge variable air valve lift apparatus fault, does not have the key structural parameters of variable air valve lift apparatus and detects affecting aspect valve timing.
Utility model content
The purpose of this utility model is to provide a kind of proving installation of variable valve system, when simulated engine operating mode under camshaft speed specified criteria, hydraulic control oil pressure is to change valve stroke, gather valve lift amount by sensor, with convenience, reliably experimental test is carried out to variable valve system.
The purpose of this utility model is achieved in that a kind of proving installation of variable valve system, comprise data acquisition system (DAS) to be connected with electronic control system, valve actuating mechanism drive system is arranged on paralell: motor is connected with oil pump, oil pump import is connected with the oil-out of sump by the road, fuel pump outlet by the road in turn with surplus valve, the oil inlet pipe of accumulator and solenoid valve connects, the overflow vent of surplus valve is communicated with sump by the road, solenoid valve is two-position three-way valve, solenoid valve first export by the road with being communicated with the hydraulic piston cylinder making adjustments valve stroke or cam of camshaft phase place in variable air valve lift range mechanism, solenoid valve second exports and is communicated with sump oil return opening through scavenge pipe,
The frequency modulation motor being used as camshaft speed during simulation hair oil machine operating mode connects camshaft through shaft coupling, and frequency modulation motor is arranged on paralell, contacts and the variable air valve lift range mechanism to be tested of action is fixed on paralell through its cylinder cap with camshaft overhead cam;
Described data acquisition system (DAS) consists of: the photoelectric encoder being used as to gather camshaft speed signal is arranged on camshaft, be used as to gather the displacement transducer of valve lift amount to be arranged on valve or near, temperature sensor and pressure transducer are arranged on solenoid valve oil inlet and oil return pipe.
The oil inlet pipe of described solenoid valve is also provided with temperature sensor and pressure transducer.
Heating tube is provided with in described sump.
Oil filter is provided with before the oil-out of described sump or after oil-out.
Described data acquisition system (DAS) also has data collecting card: the signal output part of described photoelectric encoder, displacement transducer, temperature sensor and pressure transducer is all connected with data collecting card, and the output terminal of data collecting card is connected with the PC in electronic control system.
Compared with prior art, the beneficial effects of the utility model are:
1, this device not only can study the affecting laws of key structural parameters for valve timing of newly-designed variable valve system, can also demarcate and optimize each values of the structural parameters, and cold breaking in experiment is carried out to key components and parts, guarantee the functional reliability of part.
2, this device valve actuating mechanism drive system (hydraulic system), electronic control system and the equal accessible site of data acquisition system (DAS) three parts are on paralell, thus provide a convenience, reliably experiment porch for testing variable valve system.
3, the pressure adjustable that in this device, valve actuating mechanism drive system exports variable air valve lift range mechanism and pressure stability, ensure that the accuracy of test data.
Feature of the present utility model will be set forth in a specific embodiment further.
Accompanying drawing explanation
Fig. 1 is the system schematic of this device.
Fig. 2 is variable air valve lift range mechanism scheme of installation.
Embodiment
This device forms primarily of valve actuating mechanism drive system, data acquisition system (DAS) and electronic control system three parts.
In Fig. 1,1-paralell; 2-frequency modulation motor; 3-shaft coupling; 4-camshaft; 5-cylinder cap; 6-variable air valve lift range mechanism; 7-photoelectric encoder; 8-oil filter; 9-solenoid valve; 10-accumulator; 11-surplus valve; 12-oil pump; 13-motor; 14-data acquisition system (DAS); 15-well heater; 16-mailbox; 17-ECU (Electrical Control Unit).Wherein, T is temperature; P is pressure; S is displacement; N is rotating speed.
See Fig. 1, a kind of proving installation of variable valve system, comprise data acquisition system (DAS) to be connected with electronic control system, valve actuating mechanism drive system is arranged on paralell 1: motor is connected with oil pump, oil pump import is connected with the oil-out of sump by the road, fuel pump outlet by the road in turn with surplus valve, the oil inlet pipe of accumulator and solenoid valve connects, the overflow vent of surplus valve is communicated with sump by the road, solenoid valve is two-position three-way valve, solenoid valve first export by the road with being communicated with the hydraulic piston cylinder making adjustments valve stroke or camshaft 4 cam phase in variable air valve lift range mechanism 6, solenoid valve second exports and is communicated with sump oil return opening through scavenge pipe,
The frequency modulation motor 2 being used as camshaft speed during simulation hair oil machine operating mode connects camshaft 4 through shaft coupling 3, frequency modulation motor 2 is arranged on paralell 1, contacts and the variable air valve lift range mechanism 6 to be tested of action is fixed on paralell through its cylinder cap 5 with camshaft overhead cam;
Described data acquisition system (DAS) consists of: the photoelectric encoder being used as to gather camshaft speed signal is arranged on camshaft, be used as to gather the displacement transducer of valve lift amount to be arranged on valve or near, temperature sensor and pressure transducer are arranged on (see Fig. 2) on electromagnetic valve oil return pipe, and the oil inlet pipe of described solenoid valve is also provided with temperature sensor and pressure transducer.Heating tube is provided with in described sump.Oil filter is provided with before the oil-out of described sump or after oil-out.
Fig. 1 illustrates, valve actuating mechanism drive system mainly comprises: the part such as sump, oil filter, surplus valve, oil pump, motor, accumulator and solenoid valve is formed.Paralell is installed the temperature sensor meeting accuracy requirement, pressure transducer, displacement transducer and photoelectric encoder.The Data Collection Software based of test platform exploitation is realized by Labview software programming, can meet the data acquisition of test platform, data analysis and testing requirement.The electronic control system of test platform controls to meet the flexible control to solenoid valve, realizes the accurate control of oil-feed and oil return.
The concrete principle of valve actuating mechanism drive system is as follows: motor drives oil pump, and hydraulic oil is circulated in test platform pipeline.The hydraulic oil pumped, by oil filter, filters out the impurity in hydraulic oil, enters accumulator.Accumulator is a kind of energy savings device, and this device changes the Wave energy of hydraulic oil into compression energy.When oil pressure is lower, release compression energy; When oil pressure is higher, absorb compression energy.Thus make the hydraulic oil flowed in mechanism keep steady flow, eliminate pressure fluctuation.When the hydraulic oil pressure in accumulator exceedes target charge oil pressure, the overflow vent of surplus valve is opened, and makes hydraulic oil be back to fuel tank, to keep constant pressure.Platform mesohigh oil circuit installs high-speed electromagnetic valve, this solenoid valve adopts two-position three-way valve, hydraulic control oil flows into and flows out hydraulic piston, thus the oil-feed moment of control variable air valve lift range mechanism, oil inlet quantity, oil return moment and recirculating oil quantity, make it reach the object controlling valve added lift.The start-up time of solenoid valve will determine that hydraulic oil enters the phase place of variable air valve lift range mechanism, and the unlatching duration of solenoid valve will determine the oil inlet quantity entering variable air valve lift range mechanism, thus determines the added lift of valve.By the rotating speed of camshaft during frequency modulation motor simulated engine operating mode on platform, for it provides power, drive the former lift of valve.Meanwhile, in order to the normal operating conditions of simulated engine machine oil, especially heating tube is installed in sump, has made it always work in the normal oil temperature of engine, ensure that its viscosity is unlikely too high.
Described data acquisition system (DAS) also has data collecting card: the signal output part of described photoelectric encoder, displacement transducer, temperature sensor and pressure transducer is all connected with data collecting card, and the output terminal of data collecting card is connected with the PC in electronic control system.
A method of testing for the proving installation of variable valve system, by photoelectric encoder as the triggering of valve stroke and clock signal, realizes the collection to valve stroke; The monitoring to the temperature and pressure of solenoid valve oil inlet pipe, scavenge pipe is realized by temperature and pressure sensor; Above signal is sent to the PC of electronic control system by data collecting card, adopt Labview to write software, realize the real-time of data and offline storage, computation and analysis; By camshaft speed signal acquisition Control timing sequence, determine steering logic, the control signal inputted by the PC of electronic control system is carried out the start-up time of Controlling solenoid valve and is opened the duration, thus determine each operating mode Optimal Control data, by the PC of Optimal Control data write electronic control system, in this situation cold breaking in is realized to variable valve system to be measured.
Claims (5)
1. the proving installation of a variable valve system, comprise, data acquisition system (DAS) is connected with electronic control system, it is characterized in that, it is upper that valve actuating mechanism drive system is arranged on paralell (1): motor is connected with oil pump, oil pump import is connected with the oil-out of sump by the road, fuel pump outlet by the road in turn with surplus valve, the oil inlet pipe of accumulator and solenoid valve connects, the overflow vent of surplus valve is communicated with sump by the road, solenoid valve is two-position three-way valve, solenoid valve first export by the road with being communicated with the hydraulic piston cylinder making adjustments valve stroke or camshaft (4) cam phase in variable air valve lift range mechanism (6), solenoid valve second exports and is communicated with sump oil return opening through scavenge pipe,
The frequency modulation motor (2) being used as camshaft speed during simulation hair oil machine operating mode connects camshaft (4) through shaft coupling (3), frequency modulation motor (2) is arranged on paralell (1), with the cam contact on camshaft and the variable air valve lift range mechanism (6) to be tested of action is fixed on paralell through its cylinder cap (5);
Described data acquisition system (DAS) consists of: the photoelectric encoder being used as to gather camshaft speed signal is arranged on camshaft, be used as to gather the displacement transducer of valve lift amount to be arranged on valve or near, temperature sensor and pressure transducer are arranged on solenoid valve oil inlet and oil return pipe.
2. the proving installation of a kind of variable valve system according to claim 1, is characterized in that, the oil inlet pipe of described solenoid valve is also provided with temperature sensor and pressure transducer.
3. the proving installation of a kind of variable valve system according to claim 1 and 2, is characterized in that, is provided with heating tube in described sump.
4. the proving installation of a kind of variable valve system according to claim 3, is characterized in that, is provided with oil filter before the oil-out of described sump or after oil-out.
5. the proving installation of a kind of variable valve system according to claim 4, it is characterized in that, described data acquisition system (DAS) also has data collecting card: the signal output part of described photoelectric encoder, displacement transducer, temperature sensor and pressure transducer is all connected with data collecting card, and the output terminal of data collecting card is connected with the PC in electronic control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515688.2U CN204085894U (en) | 2014-09-09 | 2014-09-09 | A kind of proving installation of variable valve system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515688.2U CN204085894U (en) | 2014-09-09 | 2014-09-09 | A kind of proving installation of variable valve system |
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| Publication Number | Publication Date |
|---|---|
| CN204085894U true CN204085894U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420515688.2U Expired - Fee Related CN204085894U (en) | 2014-09-09 | 2014-09-09 | A kind of proving installation of variable valve system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198192A (en) * | 2014-09-09 | 2014-12-10 | 韩志强 | Testing device of variable valve system and testing method thereof |
| CN110567698A (en) * | 2019-09-18 | 2019-12-13 | 天津市津聿动力科技有限公司 | Testing device and method for timing and lift measurement of variable valve of engine |
-
2014
- 2014-09-09 CN CN201420515688.2U patent/CN204085894U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198192A (en) * | 2014-09-09 | 2014-12-10 | 韩志强 | Testing device of variable valve system and testing method thereof |
| CN110567698A (en) * | 2019-09-18 | 2019-12-13 | 天津市津聿动力科技有限公司 | Testing device and method for timing and lift measurement of variable valve of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHENGDU KELI WODE POWER TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HAN ZHIQIANG Effective date: 20150625 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150625 Address after: 1, No. 441, No. 4, 610093 floor, No. 1388, Tianfu Road, Chengdu hi tech Zone, Sichuan Patentee after: HAN ZHIQIANG Address before: 610039 Jinniu District, Sichuan, Jin Zhou road, No. 999, No. Patentee before: Han Zhiqiang |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20170909 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |