CN2916276Y - Automatic transmission gear selecting and shifting actuator capable of realizing closed-loop control - Google Patents
Automatic transmission gear selecting and shifting actuator capable of realizing closed-loop control Download PDFInfo
- Publication number
- CN2916276Y CN2916276Y CN 200620028741 CN200620028741U CN2916276Y CN 2916276 Y CN2916276 Y CN 2916276Y CN 200620028741 CN200620028741 CN 200620028741 CN 200620028741 U CN200620028741 U CN 200620028741U CN 2916276 Y CN2916276 Y CN 2916276Y
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- gear
- shift
- oil
- oil cylinder
- solenoid valve
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- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model relates to an automatic gear-box shift practicing mechanism controlled by closed-loop, which is arranged with four or several same three-gear shift oil cylinder in parallel. Along the two sides of the each gear-shift oil cylinder is provided with an oil intake on which are connected with a two-position three-way magnet valve which controls two oil intakes. Wherein, one oil intake is connected with a proportional solenoid valve as well as the oil inlet. The other oil intake is connected with an oil-return intake. The oil inlet is connected with a hydraulic-pressure oil source which runs through the proportional solenoid valve, change valve and gear-shift magnet valve and enters the gear-shift oil cylinder. On the gear-shift piston inside the gear-shift oil cylinder is glidingly connected with a gliding bushing. The front end of the gear-shift piston is connected with gear sensor. The utility model has the advantages that: time for shifting the gear is short and power performance of vehicle is good. In addition, the adoption of four or several same parallel three-position oil cylinder enables the production to be good, enjoys simple structure as well as lower manufacturing cost.
Description
Technical field:
The utility model relates to a kind of automatic transmission case shift-selecting and changing actuating mechanism of realizing closed loop control, is applied in the automatic gearbox field.
Background technique:
Present automatic gearbox mainly contains hydraulic mechanical type automatic transmission (AT), stepless speed variator (CVT), and three kinds of electric control mechanical type automatic speed variators (AMT).
The hydraulic mechanical type automatic transmission is called for short AT, also is present most widely used automatic gearbox.It does not cut off power and carries out gear shift, has starting, gear shift is smooth-going, but resisting moment is changed advantage such as self adaption.But shortcomings such as it also has complex structure simultaneously, and difficulty is made, and transmission efficiency is low, this makes the independent development of present China and uses AT and is restricted.
Manually fixedly the shaft type gear-shift transmission is the step change driving mechanism, and its advantage is the efficient height, and cost is low, and mature production technology is widely used in China at present.Shortcoming is the gear shift difficulty, and power interruption during gear shift requires pilot control skilled, so people expect that it can realize automation.Computer Control Technology makes this gear realize that automaitc shfit becomes possibility.Electric control mechanical type automatic speed variator (AMT) is exactly the product that makes the fixed shaft transmission automation by microcomputer control.It kept original gear speed changer transmission efficiency height, installing space compactness, in light weight, cost is low, easy manufacturing, safeguard advantages such as easy; And realized the automation of starting, gearshift procedure, in handiness, possessed the advantage of AT.AMT with its economy, easy to usely, simple and safe have better travelling comfort again and favored; and it also has the advantage that the existing manual transmission of the desired high fuel economy of present automobile industry development, low emission and protection is produced investment; therefore be subjected to the attention of each big automobile factory, become the new automobile automatic transmission of suitable China's national situation.
AMT is on the basis of conventional fixed axis transmission and dry clutch, application electric technology and automatic speed changing theory, with electronic control unit (ECU) is core, separation by the actuating mechanism controls clutch with engage, select gear-change operation and the fuel feeding by electronic equipment control motor, realize starting to walk, the automatic manipulation of gear shift.The basic thought of AMT control is: according to driver's intention (accelerator pedal, brake petal, Joystick etc.) and the state (engine speed of vehicle, the input shaft rotating speed, the speed of a motor vehicle, gear), according to suitable control law (process of power shift, clutch rule etc.), by means of corresponding actuator (clutch actuating mechanism, gear-selecting and shifting executing mechanism) and electronic equipment (engine oil control electronic equipment) to the Power Train (motor of vehicle, clutch, speed changer) carries out united control, its working principle ECU (Electrical Control Unit) (TCU) is according to software program, in real time, shoulder the collection of multichannel input signal online, processing, and the sending of control decision and execution command; Then according to the instruction of TCU, control electromagnetic valve makes actuator automatically finish actions such as clutch separation, joint and speed changer select, change to operating control mechanism, and gearshift procedure is finished automatically.
But, in this control system,, need further investigation control device and control strategy on the one hand if want to make the performance of system to reach desirable condition, improve the control effect; On the other hand, then need to excavate by the dynamic performance of control elements as far as possible, make the cooperation of whole system perform to perfect degree.This is because if the uncontrollable words of controlled device, control system cisco unity malfunction then, and the height of controlled device performance have also influenced the performance of whole system significantly.
In the AMT system, for there are two solution routes the time that shortens power interruption: the one, the speed of response of raising controlled device, the 2nd, the structure of change controlled device.
Technology contents:
The purpose of this utility model is to provide a kind of automatic transmission case shift-selecting and changing actuating mechanism of realizing closed loop control, is arranged in the direction of gear shift by a plurality of three arranged side by side position oil cylinders, the control of solenoid valve is realized the switching of gear by ECU (Electrical Control Unit); Simultaneously, in shift process, the adjustable in pressure of system can be according to the size output gearshift power of power required in the gearbox synchronizing process, and gearbox is at neutral gear position when guaranteeing thrashing simultaneously.
The technical solution of the utility model is achieved in that a kind of automatic transmission case shift-selecting and changing actuating mechanism of realizing closed loop control, discharge side by side by identical four or a plurality of three gear shifting oil cylinders, the gear shifting oil cylinder both sides have a hydraulic fluid port, each hydraulic fluid port is to be connected with a two-bit triplet solenoid valve, two hydraulic fluid ports of two-bit triplet electromagnetic valve operation, one of them hydraulic fluid port is connected with proportional electromagnetic valve and links to each other with filler opening, and another hydraulic fluid port connects return opening; Filler opening connects hydraulic oil source, and hydraulic oil enters gear shifting oil cylinder through proportional electromagnetic valve, selector valve, gear shift solenoid valve; Slidely connect sliding sleeve, the fixedly connected gear position sensor of gear shift piston nose on the gear shift piston in the gear shifting oil cylinder.
Good effect of the present utility model is that speed is very fast by the action of cancellation gear selecting, and shift time is short, so vehicle has good power character; Cut down finished cost by the complexity of simplifying actuator; Used structure identical four or a plurality of three position oil cylinders arranged side by side, conformity of production is good, and is simple in structure, and cost of production is low; Because the adjustable in pressure of system in the gearshift transient process so just can be controlled at the gearshift power in the shift process, improves the shift quality of gearbox, reduce in the shift process impact simultaneously, the working life of raising synchronizer to Synchromous device of gearbox.
Description of drawings:
Fig. 1 is a structural representation of the present utility model
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described: as shown in Figure 1, a kind of automatic transmission case shift-selecting and changing actuating mechanism of realizing closed loop control, it is characterized in that: select the gear shift action by identical four or a plurality of three gear shifting oil cylinders 1 emission control gearbox arranged side by side, gear shifting oil cylinder 1 both sides have a hydraulic fluid port, each hydraulic fluid port is to be connected with a gear shift solenoid valve 2 to be the two-bit triplet solenoid valve, two hydraulic fluid ports of two-bit triplet solenoid valve 2 control operations, one of them hydraulic fluid port is connected with proportional electromagnetic valve 3 and links to each other with filler opening 4, and another hydraulic fluid port connects return opening 5; Filler opening 4 connects hydraulic oil source, and hydraulic oil enters gear shifting oil cylinder 1 through proportional electromagnetic valve 3, selector valve 6, gear shift solenoid valve 2; Slidely connect sliding sleeve 9, the fixedly connected gear position sensor 7 of gear shift piston 8 front ends on the gear shift piston 8 in the gear shifting oil cylinder 1.When system cut-off, the hydraulic oil of certain pressure enters gear shifting oil cylinder 1 from filler opening 4 through selector valves 6, proportional electromagnetic valve 3, under the effect of gear shifting oil cylinder 1 pressure at both sides, makes gear shift piston 8 be in the neutral position, the gearbox shelves that make the return trip empty.When system's energising is in normal working, selector valve 6 energisings, this moment, hydraulic oil entered gear shifting oil cylinder 1 from filler opening through proportional electromagnetic valve 3, selector valve 6, gear shift solenoid valve 2, under the effect of gear shifting oil cylinder 1 pressure at both sides, make gear shift piston 8 be in the neutral position, the gearbox shelves that make the return trip empty.When the solenoid valve in left side is switched on, the hydraulic oil passing ratio solenoid valve 3 of left side gear shifting oil cylinder 1 links to each other with return opening 5, the hydraulic oil of right side gear shifting oil cylinder 1 links to each other with filler opening 4 by gear shift solenoid valve 2, promotes piston 8 and sliding sleeve 9 to left movement under the effect of pressure.During with solenoid valve energising that should the right side, the left side oil-feed of oil cylinder promotes piston 8 and sliding sleeve 9 and moves right.By the combination of several same structure oil cylinders, can realize the shifting of the gearbox of different gears.In whole gearshift procedure, can judge whether the gear shift plunger has moved and put in place promptly whether finished gear shift according to being installed in sensor on the gear shifting operator.Thereby realized the closed loop control of gearshift procedure.In oil supply system, the joint work of passing ratio solenoid valve 3 and selector valve 6 can be implemented in the adjustable in pressure of system in the transient process of gearshift, thereby the gearshift power that is implemented in the gearshift transient process is adjustable.What exploitation AMT system on the vehicle of gearbox of 6 or a plurality of forward gearss was housed at bus, lorry etc. selects the gear shift problem automatically, can promote the application of AMT technology on large vehicle.
Claims (1)
1, a kind of automatic transmission case shift-selecting and changing actuating mechanism of realizing closed loop control, it is characterized in that: by identical four or a plurality of three gear shifting oil cylinders (1) side by side the emission control gearbox select the gear shift action, gear shifting oil cylinder (1) both sides have a hydraulic fluid port, each hydraulic fluid port is that to be connected with a gear shift solenoid valve (2) be the two-bit triplet solenoid valve, two hydraulic fluid ports of two-bit triplet solenoid valve (2) control operation, one of them hydraulic fluid port is connected with proportional electromagnetic valve (3) and links to each other with filler opening (4), and another hydraulic fluid port connects return opening (5); Filler opening (4) connects hydraulic oil source, and hydraulic oil enters gear shifting oil cylinder (1) through proportional electromagnetic valve (3), selector valve (6), gear shift solenoid valve (2); Slidely connect sliding sleeve (9), the fixedly connected gear position sensor of gear shift piston (8) front end (7) on the gear shift piston (8) in the gear shifting oil cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620028741 CN2916276Y (en) | 2006-05-12 | 2006-05-12 | Automatic transmission gear selecting and shifting actuator capable of realizing closed-loop control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620028741 CN2916276Y (en) | 2006-05-12 | 2006-05-12 | Automatic transmission gear selecting and shifting actuator capable of realizing closed-loop control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2916276Y true CN2916276Y (en) | 2007-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620028741 Expired - Lifetime CN2916276Y (en) | 2006-05-12 | 2006-05-12 | Automatic transmission gear selecting and shifting actuator capable of realizing closed-loop control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2916276Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179681A (en) * | 2015-10-30 | 2015-12-23 | 无锡正瑞汽车传动技术有限公司 | Hydraulic control gearshift system of two-gear automatic transmission |
| CN107061642A (en) * | 2017-03-15 | 2017-08-18 | 清华大学 | A kind of two grades of gearboxes of dual brake formula electric car and its control method |
-
2006
- 2006-05-12 CN CN 200620028741 patent/CN2916276Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179681A (en) * | 2015-10-30 | 2015-12-23 | 无锡正瑞汽车传动技术有限公司 | Hydraulic control gearshift system of two-gear automatic transmission |
| CN107061642A (en) * | 2017-03-15 | 2017-08-18 | 清华大学 | A kind of two grades of gearboxes of dual brake formula electric car and its control method |
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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: CHINA FAW CO., LTD. Free format text: FORMER OWNER: CHINESE AUTO GROUP CO NO.1 Effective date: 20111116 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111116 Address after: 130011 No. 2259 Dongfeng Avenue, West New Economic and Technological Development Zone, Changchun Patentee after: China FAW Group Corporation Address before: 130011 No. 83 Dongfeng Avenue, Jilin, Changchun Patentee before: China FAW Group Corporation |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070627 |
|
| EXPY | Termination of patent right or utility model |