CN101403436B - Shifting system and method for hydraulic speed changer - Google Patents
Shifting system and method for hydraulic speed changer Download PDFInfo
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- CN101403436B CN101403436B CN200810068994A CN200810068994A CN101403436B CN 101403436 B CN101403436 B CN 101403436B CN 200810068994 A CN200810068994 A CN 200810068994A CN 200810068994 A CN200810068994 A CN 200810068994A CN 101403436 B CN101403436 B CN 101403436B
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- solenoid valve
- valve
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- width modulation
- throttle slide
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Abstract
The invention discloses a shift system of a hydraulic transmission and a method; the shift system of the hydraulic transmission comprises a pulse width modulation solenoid valve, an solenoid valve seat, a bilateral throttle slide valve, a valve body and a spring and the like, wherein, six pulse width modulation solenoid valves at most are arranged in the solenoid valve seat, six bilateral throttle slide valves at most and six springs at most are arranged in the valve body, and the solenoid valve seat is arranged on the valve body, which causes each bilateral throttle slide valve is controlled jointly by one pulse width modulation solenoid valve and one spring. The shift system of the hydraulic transmission makes full use of the advantage of software modulation of the pulse width modulation solenoid valve, and reduces the structural design of buffer valves; moreover, moreover the system can be used for the shift control of the multi-shift hydraulic transmission.
Description
Technical field
The present invention relates to a kind of torque converter, particularly a kind of torque converter gear change system and method thereof of being used for.
Background technique
The torque converter gear change system is made up of valve body, reduction valve, solenoid valve, gear shift guiding valve and trimmer valve etc. usually; Reduction valve is regulated the oil pressure of working connection as solenoid valve oil-feed oil pressure; And solenoid valve is controlled by controller, and a solenoid valve all is equipped with on each gear shift guiding valve top, and the oil pressure that gets into each clutch all passes through fixing trimmer valve buffering back and gets; For example " vehicle hydraulic transmission " National Defense Industry Press front page in June nineteen eighty-three has just been introduced Allison DP8000 automatic shift system oil-way system for the 284th page; This system adopts in-line oil channel structures, and its gear change system comprises several solenoid valves, and the layout of oil circuit has determined that these solenoid valves can only be by fixed combination and order energising; And the oil time that charges and discharge of clutch solves by trimmer valve fully; Because oil circuit is many and accurate in the valve body, make that the difficulty of whole gear change system casting is high, processing technology is complicated.Introduce the ZF truck for the 333rd page at " vehicle hydraulic transmission " National Defense Industry Press front page in June nineteen eighty-three equally and used torque converter 5HP500; The employing parallel connection oil channel structures of the gearshift mechanism of its speed changer; Gear shift control also relies on independently, and buffer structure solution clutch charges and discharge oil time, complex structure.
Summary of the invention
The technical problem that solves
For overcoming the deficiency that existing technology torque converter gear change system exists, the invention provides a kind of torque converter gear change system and method, to overcome existing gear change system complex structure, processing technology is difficult, the deficiency that application is narrow.
Technological scheme
The torque converter gear change system is made up of pulse width modulation solenoid valve, solenoid valve seat, bilateral throttle slide valve, valve body and spring etc.; Six pulse width modulation solenoid valves at the most wherein are installed in the solenoid valve seat; Be mounted to many six bilateral throttle slide valves and six springs at the most in the valve body; Solenoid valve seat docks with valve body simultaneously, makes each bilateral throttle slide valve by a pulse width modulation solenoid valve and a spring control.Press the certain frequency and the oil pressure of duty cycle adjustment pulse width modulation solenoid valve oil circuit through software; This oil pressure acts on bilateral throttle slide valve one end with a kind of form of average oil pressure; And the elastic force of spring acts on the bilateral throttle slide valve the other end, like this through the stressed comparison in bilateral throttle slide valve two ends, controls the aperture of bilateral throttle slide valve; Be the aperture that the solenoidoperated cluthes control oil channel is communicated with working connection, thereby the oil pressure of Clutch Control oil circuit is adjusted in a stationary value.
In order to reduce the processing request of valve opening in bilateral throttle slide valve and the valve body, reduce the leakage of fluid again, adopt the bilateral throttle structure of negative opening.
The gear change system of torque converter of the present invention; Between bilateral throttle slide valve and valve body, be provided with annular throttle chink; Gap size is 0.02～0.05mm; Make that speed changer begins in gear shift, the clutch oil-feed, begin each stage of combining clutch or clutch to combine fully, obtain good system performance.
The automatically controlled shift valve of torque converter of the present invention also is provided with a controller, changes the energising combination of solenoid valve and the dutycycle of order and pulse width modulation solenoid valve through controller.
Beneficial effect
1, bilateral throttle slide valve adopts the negative bilateral throttle structure of opening, has reduced oil liquid leakage, has reduced the processing request of whole system;
2, each fuel feeding oil duct is the parallel connection relation, and bilateral throttle slide valve of each pulse width modulation solenoid valve control is relatively independent, does not interfere with each other, thereby makes the energising combination of solenoid valve more flexible, can control the torque converter of multiple different gears;
3, owing to adopt pulse width modulation solenoid valve, can system buffer structure Design and manufacturing have been reduced easily through software modulation pulsewidth solenoid valve output oil pressure.
Description of drawings
Fig. 1 is the schematic diagram of the automatically controlled shift valve of torque converter of the present invention
Fig. 2 is one group of Clutch Control oil channel structures of the present invention schematic representation
Wherein D8 is that high score dynamic clutch control oil channel, H8 are that high-gear clutch control oil channel, M8 are that middle-grade Clutch Control oil circuit, L8 are that low regime clutch control oil channel, R8 are low-low or the reverse clutch control oil channel for low transfer Clutch Control oil circuit, G8.
Embodiment
Embodiments of the invention 1: the principle of six groups of identical Clutch Control oil channel structures Fig. 2 being pressed Fig. 1 constitutes the torque converter gear change system; Promptly six Sampling solenoid valves 5 are installed in the solenoid valve seat 9 side by side; Six springs 11 and six bilateral throttle slide valves 7 are installed in the valve body 10; Solenoid valve seat 9 is installed on the valve body 10 simultaneously, makes bilateral throttle slide valve R7, L7, M7, H7, D7, G7 receive the elastic force effect of PWM electromagnetic fuel pressure control valve B6, C6, D6, E6, F6, G6 and spring 11 respectively.After working connection 1 passes through reduction valve 2 and adjusting oil circuit 4 links to each other; Regulate the oil-feed oil pressure of the oil pressure of oil circuit 4 as pulse width modulation solenoid valve B5, C5, D5, E5, F5, G5; With a controller to pulse width modulation solenoid valve B5, C5, D5, E5, F5, G5 get electric and electric dutycycle width and frequency regulated; To obtain the oil pressure of solenoid valve modulation oil circuit B6, C6, D6, E6, F6, G6 respectively; Thereby control the motion of bilateral throttle slide valve, make Clutch Control oil circuit R8, L8, M8, H8, D8, G8 communicate with working connection 1 or communicate with draining food tray 3.All bilateral throttle slide valves 7 adopt the structure of negative opening, and the annulus between valve body 10 and the bilateral throttle slide valve 7 is 0.04mm.Pulse width modulation solenoid valve F5 and B5 parallel connection energising are regulated and are realized reverse gear; Pulse width modulation solenoid valve F5 and C5 parallel connection energising are regulated and are realized advancing one grade; Pulse width modulation solenoid valve G5 and C5 parallel connection energising are regulated and are realized advancing second gear; Pulse width modulation solenoid valve F5 and D5 parallel connection energising are regulated and are realized advancing third gear, and pulse width modulation solenoid valve G5 and D5 parallel connection energising are regulated and realized advancing fourth gear, and pulse width modulation solenoid valve F5 and E5 parallel connection energising are regulated and realized advancing five grades; Pulse width modulation solenoid valve G5 and E5 parallel connection energising are regulated and are realized advancing six grades, and pulse width modulation solenoid valve F5 switches on separately to regulating and realizes neutral gear.
Embodiments of the invention 2: the principle of six groups of identical Clutch Control oil channel structures Fig. 2 being pressed Fig. 1 constitutes the torque converter gear change system; Promptly six Sampling solenoid valves 5 are installed in the solenoid valve seat 9 side by side; Six springs 11 and six bilateral throttle slide valves 7 are installed in the valve body 10; Solenoid valve seat 9 is installed on the valve body 10 simultaneously, makes bilateral throttle slide valve R7, L7, M7, H7, D7, G7 receive the elastic force effect of PWM electromagnetic fuel pressure control valve B6, C6, D6, E6, F6, G6 and spring 11 respectively.After working connection 1 passes through reduction valve 2 and adjusting oil circuit 4 links to each other; Regulate the oil-feed oil pressure of the oil pressure of oil circuit 4 as pulse width modulation solenoid valve B5, C5, D5, E5, F5, G5; With a controller to pulse width modulation solenoid valve B5, C5, D5, E5, F5, G5 get electric and electric dutycycle width and frequency regulated; To obtain the oil pressure of solenoid valve modulation oil circuit B6, C6, D6, E6, F6, G6 respectively; Thereby control the motion of bilateral throttle slide valve, make Clutch Control oil circuit R8, L8, M8, H8, D8, G8 communicate with working connection 1 or communicate with draining food tray 3.All bilateral throttle slide valves 7 adopt the structure of negative opening, and the annulus between valve body 10 and the bilateral throttle slide valve 7 is 0.05mm.Pulse width modulation solenoid valve F5 and B5 parallel connection energising are regulated and are realized advancing one grade; Pulse width modulation solenoid valve G5 and B5 parallel connection energising are regulated and are realized advancing second gear; Pulse width modulation solenoid valve F5 and C5 parallel connection energising are regulated and are realized advancing third gear, and pulse width modulation solenoid valve F5 and D5 parallel connection energising are regulated and realized advancing fourth gear, and pulse width modulation solenoid valve G5 and C5 parallel connection energising are regulated and realized advancing five grades; Pulse width modulation solenoid valve G5 and D5 parallel connection energising are regulated and are realized advancing six grades; Pulse width modulation solenoid valve F5 and E5 parallel connection energising are regulated and are realized advancing seven grades, and pulse width modulation solenoid valve G5 and E5 parallel connection energising are regulated and realized advancing eight grades, and pulse width modulation solenoid valve F5 switches on separately to regulating and realizes neutral gear.
Embodiments of the invention 3: the principle of six groups of identical Clutch Control oil channel structures Fig. 2 being pressed Fig. 1 constitutes the torque converter gear change system; Promptly six Sampling solenoid valves 5 are installed in the solenoid valve seat 9 side by side; Six springs 11 and six bilateral throttle slide valves 7 are installed in the valve body 10; Solenoid valve seat 9 is installed on the valve body 10 simultaneously, makes bilateral throttle slide valve R7, L7, M7, H7, D7, G7 receive the elastic force effect of PWM electromagnetic fuel pressure control valve B6, C6, D6, E6, F6, G6 and spring 11 respectively.After working connection 1 passes through reduction valve 2 and adjusting oil circuit 4 links to each other; Regulate the oil-feed oil pressure of the oil pressure of oil circuit 4 as pulse width modulation solenoid valve B5, C5, D5, E5, F5, G5; With a controller to pulse width modulation solenoid valve B5, C5, D5, E5, F5, G5 get electric and electric dutycycle width and frequency regulated; To obtain the oil pressure of solenoid valve modulation oil circuit B6, C6, D6, E6, F6, G6 respectively; Thereby control the motion of bilateral throttle slide valve, make Clutch Control oil circuit R8, L8, M8, H8, D8, G8 communicate with working connection 1 or communicate with draining food tray 3.All bilateral throttle slide valves 7 adopt the structure of negative opening, and the annulus between valve body 10 and the bilateral throttle slide valve 7 is 0.02mm.Pulse width modulation solenoid valve F5 and B5 parallel connection energising are regulated and are realized advancing one grade; Pulse width modulation solenoid valve F5 and C5 parallel connection energising are regulated and are realized advancing second gear; Pulse width modulation solenoid valve F5 and D5 parallel connection energising are regulated and are realized advancing third gear, and pulse width modulation solenoid valve F5 and E5 parallel connection energising are regulated and realized advancing fourth gear, and pulse width modulation solenoid valve G5 and B5 parallel connection energising are regulated and realized falling back one grade; Pulse width modulation solenoid valve G5 and C5 parallel connection energising are regulated and are realized falling back second gear; Pulse width modulation solenoid valve G5 and D5 parallel connection energising are regulated and are realized falling back third gear, and pulse width modulation solenoid valve G5 and E5 parallel connection energising are regulated and realized falling back fourth gear, and pulse width modulation solenoid valve F5 switches on separately to regulating and realizes neutral gear.
Can certainly remove to control the torque converter that is different from top gear with top torque converter gear change system, one group of this moment or two groups of Clutch Control oil circuits lay up.
Certainly remove to control the torque converter of a reverse gear, a neutral gear, three forward gearss with the structure of four groups of Clutch Control oil circuits, or the torque converter structure of going to control three reverse gears, a neutral gear, three forward gearss with the structure of five groups of Clutch Control oil circuits still drops on the row of protection of the present invention.
Claims (3)
1. torque converter gear change system; Comprise pulse width modulation solenoid valve, solenoid valve seat, bilateral throttle slide valve, spring, valve body; It is characterized in that: six pulse width modulation solenoid valves (5) are installed in the solenoid valve seat (9) side by side; Six bilateral throttle slide valves (7) and six springs (11) are installed in the valve body (10) side by side; Solenoid valve seat (9) docks with valve body (10) simultaneously; Make each bilateral throttle slide valve (7) all by the elastic force control of the oil pressure and a spring (11) of solenoid valve modulation oil circuit (6), this bilateral throttle slide valve (7) and valve body (10) have the passage that when pulse width modulation solenoid valve (5) must be electric, Clutch Control oil circuit (8) is linked to each other with working connection (1) or draining food tray (3) together.
2. torque converter gear change system according to claim 1 is characterized in that: the bilateral throttle structure that adopts negative opening between said bilateral throttle slide valve (7) and the valve body (10).
3. torque converter gear change system according to claim 1 is characterized in that: said bilateral throttle slide valve (7) is 0.02～0.05mm with the annulus of valve body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810068994A CN101403436B (en) | 2008-11-14 | 2008-11-14 | Shifting system and method for hydraulic speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810068994A CN101403436B (en) | 2008-11-14 | 2008-11-14 | Shifting system and method for hydraulic speed changer |
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| Publication Number | Publication Date |
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| CN101403436A CN101403436A (en) | 2009-04-08 |
| CN101403436B true CN101403436B (en) | 2012-09-05 |
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| CN200810068994A Active CN101403436B (en) | 2008-11-14 | 2008-11-14 | Shifting system and method for hydraulic speed changer |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141146B (en) * | 2011-01-30 | 2013-12-11 | 长城汽车股份有限公司 | Automatic transmission oil pressure control system capable of preventing reverse gear impacts |
| CN102278465B (en) * | 2011-05-20 | 2014-07-23 | 北京理工大学 | Method for calibrating control parameters during gear shifting process |
| CN106523690A (en) * | 2016-12-16 | 2017-03-22 | 贵州凯星液力传动机械有限公司 | Multi-plate wet clutch oil pressure control system of hydrodynamic transmission |
| CN107166026A (en) * | 2017-07-19 | 2017-09-15 | 大连海事大学 | A kind of gear shifting hydraulic system of vehicle control device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2622485Y (en) * | 2003-05-30 | 2004-06-30 | 贵州凯星液力传动机械有限公司 | Hydraulic speed variator |
| CN1776253A (en) * | 2005-11-24 | 2006-05-24 | 贵州凯星液力传动机械有限公司 | Transmission for hydraulic variable speed device |
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2008
- 2008-11-14 CN CN200810068994A patent/CN101403436B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2622485Y (en) * | 2003-05-30 | 2004-06-30 | 贵州凯星液力传动机械有限公司 | Hydraulic speed variator |
| CN1776253A (en) * | 2005-11-24 | 2006-05-24 | 贵州凯星液力传动机械有限公司 | Transmission for hydraulic variable speed device |
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| CN101403436A (en) | 2009-04-08 |
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