CN102141146B - Automatic transmission oil pressure control system capable of preventing reverse gear impacts - Google Patents
Automatic transmission oil pressure control system capable of preventing reverse gear impacts Download PDFInfo
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- CN102141146B CN102141146B CN2011100328718A CN201110032871A CN102141146B CN 102141146 B CN102141146 B CN 102141146B CN 2011100328718 A CN2011100328718 A CN 2011100328718A CN 201110032871 A CN201110032871 A CN 201110032871A CN 102141146 B CN102141146 B CN 102141146B
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Abstract
The invention discloses an automatic transmission oil pressure control system capable of preventing reverse gear impacts, which belongs to the technical field of transmission devices. The technical scheme is that: the system comprises a main pressure regulating valve, an auxiliary pressure regulating valve, a manually operated valve and four mechanical valves controlled by electromagnetic valves, wherein oil inlets of the main pressure regulating valve and the auxiliary pressure regulating valve are connected with an oil pump; control oil ports of the four mechanical valves are connected with an oil outlet of the auxiliary pressure regulating valve; oil inlets of a first mechanical valve, a third mechanical valve and a fourth mechanical valve are connected with an oil outlet of the main pressure regulating valve; an oil inlet of a second mechanical valve is connected with an oil outlet of the first mechanical valve; the manually operated valve is a six-position eight-way valve; the five oil outlets are connected with a third and fourth gear clutch, a reverse gear clutch, a first and second gear clutch, a reverse gear brake and a second and fourth gear brake respectively; and the three oil inlets are connected with the oil outlets of the second mechanical valve, the third mechanical valve and the fourth mechanical valve respectively. The system has a small volume, and oil lines at all gear positions can be accurately controlled, so that all forward gears and reverse gears can be prevented from the reverser gear impacts.
Description
Technical field
The present invention relates to a kind of AT automatic transmission oil pressure control device, belong to automobile technical field.
Background technique
What AT automatic transmission great majority adopted is that planetary mechanism carrys out transferring power, and the transmission of the power that reverses gear is to realize by the sun gear in conjunction with single planetary mechanism and braking planet carrier.Because the existing AT automatic transmission oil pressure that reverses gear can not accurately be controlled, thereby have the impact phenomenon that reverses gear, oil pressure increases faster, and it is strong that Shaoxing opera is impacted in corresponding gearshift.At present, most of AT automatic transmission utilize accumulator to reduce to reverse gear impact, but, because mechanical accumulator can not adapt to all operating modes of vehicle, this method can't be eliminated the impact of reversing gear fully.In addition, the accumulator volume is larger, has increased the shared space of AT, is unfavorable for arrangement.
Summary of the invention
The object of the present invention is to provide the automatic transmission oil pressure control system that a kind of volume is little and can prevent from reversing gear and impact, to improve automobile driving travelling comfort and stability.
The alleged problem of the present invention realizes with following technical proposals:
A kind of automatic transmission oil pressure control system that reverses gear and impact that prevents, formation comprises main pressure regulator valve, secondary pressure regulator valve, manually operated valve and four mechanical valve by electromagnetic valve, the filler opening of main pressure regulator valve and secondary pressure regulator valve connects oil pump, the control port of four mechanical valve connects the oil outlet of secondary pressure regulator valve, the filler opening of the first mechanical valve, the 3rd mechanical valve and the 4th mechanical valve connects the oil outlet of main pressure regulator valve, and the filler opening of the second mechanical valve connects the oil outlet of the first mechanical valve; Described manually operated valve is six eight logical valves, its five oil outlets connect respectively three or four gear clutches, the clutches that reverse gear, one or two gear clutches, reverse gear break and two or four gear breaks, and three filler openings connect respectively the oil outlet of the second mechanical valve, the 3rd mechanical valve and the 4th mechanical valve.
The above-mentioned automatic transmission oil pressure control system that reverses gear and impact that prevents, mean respectively with q2, q3, q4 three filler openings that manually operated valve is connected with the oil outlet of the second mechanical valve, the 3rd mechanical valve and the 4th mechanical valve, five oil outlets that mean to reverse gear manually operated valve and three or four gear clutches, one or two gear clutches, the clutches that reverse gear, a break is connected with two or four gear breaks with c1, c2, c3, b1, b2, manually operated valve is when six gears, and the connected relation between each hydraulic fluid port is:
Keep off (P) in Parking: each hydraulic fluid port all is not communicated with;
At reverse gear shift (R): c3 is communicated with q3, and b1 is communicated with q4, and all the other hydraulic fluid ports all are not communicated with;
At neutral (N): each hydraulic fluid port all is not communicated with;
At the automatic catch that advances (D): c1 is communicated with q3, and c2 is communicated with q4, and b2 is communicated with q2, and all the other hydraulic fluid ports all are not communicated with;
At 2 gear automatic catch (2): c1 is communicated with q3, and c2 is communicated with q4, and b2 is communicated with q2, and all the other hydraulic fluid ports all are not communicated with;
At 1 gear (L): c1 is communicated with q3, and c2 is communicated with q4, and b1 is communicated with q2, and all the other hydraulic fluid ports all are not communicated with.
The present invention utilizes the main fluid of main pressure regulator valve output directly to lead to each mechanical valve by electromagnetic valve, fluid after mechanical valve is controlled enters each clutch and break through manually operated valve again, because the oil circuit of each gear is accurately to be controlled by the mechanical valve of electromagnetic valve, thereby each forward gear and reverse gear and can avoid gearshift to impact.In addition, the present invention has saved the accumulator that traditional AT automatic transmission adopts, and has greatly reduced the volume of speed changer, to arrangement, has saved space.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is oil circuit figure of the present invention;
Fig. 2 is the structural representation of manually operated valve.
In figure, each label is: 1, oil sump; 2, oil purifier; 3, oil pump; 4, main pressure regulator valve; 5, secondary pressure regulator valve; 6, manually operated valve; 7, C3 feeds back to the oil circuit of main pressure regulator valve, 8, lead to the oil circuit of B1 oil circuit limit mechanical valve, 9 oil circuits after B1 oil circuit limiting valve; C1, three or four gear clutches; C2, one or two gear clutches; C3, clutch reverses gear; B1, one break that reverses gear; B2, two or four gear breaks; S1, S2, S3, S4, solenoid valve; V1, V2, V3, V4, mechanical valve; EX, draining; P, Parking gear, R, reverse gear shift, N, neutral, D, automatic catch advances.
Embodiment
Referring to Fig. 1, Fig. 2, the 4AT oil circuit (4 gear transmission) of take is example, and the gearshift of dynamically reversing gear is impacted mainly and eliminated by by solenoid valve, accurately controlling the executive component that reverses gear.In figure, V1 is 22 logical valves; V2 is 23 logical valves; V3, be 23 logical valves; V4 is 23 logical valves; P1 is V1 valve, V3 valve and V4 valve master fluid filler opening; Q1 is V2 valve filler opening, connects the oil outlet fluid after the V1 valve regulation; P2 is control port, connects the fluid after secondary pressure regulator valve 5 is regulated; The oil outlet of the fluid that Q2 is the V2 valve regulation; The oil outlet of the fluid of Q3, V3 valve regulation; The oil outlet of the fluid of Q4, V4 valve regulation; Q5, each valve drain tap.The gear of manually operated valve: P refers to the Parking gear, and R refers to reverse gear shift, and N refers to neutral, and D refers to the automatic catch that advances, and 2 gears refer to 2 gear automatic catch, and L refers to 1 gear.The figure acceptance of the bid understands that the oil circuit of each position of manually operated valve is communicated with situation.The trend of oil circuit: oil pump 3 oil extraction from oil sump 1 oil suction, the main fluid of regulating through main pressure regulator valve 4 directly leads to each electromagnetic valve oil circuit, then the electromagnetic valve oil circuit leads to manually operated valve 6 again, enter each executive component by manually operated valve 6 control fluid and realize that (manually operated valve 6 is the direct operated valve of gear level to each gear, gear level position difference, the oil circuit difference that manually operated valve is communicated with).Reverse gear and realize by reverse gear clutch C3 and braking B1 break of combination, in Fig. 2, manually operated valve is in the position of reversing gear, can find out, after the design changes the manually operated valve structure, the S3 solenoid valve has just been controlled the oil circuit of the clutch C3 that reverses gear, the S4 solenoid valve has just been controlled an oil circuit that reverses gear break B1, in forward gear, S3 and S4 solenoid valve are also being controlled three or four gear clutch C1 and one or two gear clutch C2 simultaneously, and the AT that is different from current main-stream regulates oil pressure with accumulator, thereby the solenoid valve of having realized oil pressure is accurately controlled (can control under the various operating modes of vehicle), and the design has only changed the structure of manually operated valve and the trend of oil circuit (oil that oil pump pumps enters each gearshift by manually operated valve again and carries out original paper after electromagnetic valve), (existing product has plenty of by two executive components of 1 electromagnetic valve not increase the parts such as any solenoid valve, one of them is the execution original paper that reverses gear, but increased accordingly a switch electromagnetic valve with reversed gear and forward gear between switching, 4CF1 type 4AT as Fu Ruidi), thereby do not increase cost.In Fig. 2,7 for the C3 clutch feeds back to the oil circuit of main pressure regulator valve, and 8 for lead to the oil circuit (not drawing) of B1 break oil circuit limit mechanical valve in Fig. 1, and 9 is the oil circuit (not drawing in Fig. 1) after B1 break oil circuit limiting valve, and EX refers to draining.
Being achieved as follows of other gears: 1 gear that advances is by realizing in conjunction with one or two gear clutch C2, and now S4 electromagnetic valve one or two is kept off clutch C2 oil pressure; Advance 2 gears by realizing in conjunction with one or two gear clutch C2 and braking two or four gear break B2, and now S4 electromagnetic valve one or two is kept off clutch C2 oil pressure, S2 electromagnetic valve two or four gear break B2 oil pressure; 3 gears that advance keep off clutch C2 by coupling three or four gear clutch C1 and or two and realize, now S3 electromagnetic valve three or four is kept off clutch C1 oil pressure, S4 electromagnetic valve one or two gear clutch C2 oil pressure; Advance 4 gears by realizing in conjunction with three or four gear clutch C1 and braking two or four gear break B2, and now S3 electromagnetic valve three or four is kept off clutch C1 oil pressure, S2 Clutch Control two or four gear break B2 oil pressure; L gear realizes by the break B1 that reverses gear in conjunction with one or two gear clutch C2 and braking one, S4 electromagnetic valve one or two gear clutch C2 oil pressure now, the S2 electromagnetic valve one break B1 oil pressure that reverses gear.
Illustrated embodiment of the present invention for be the concrete oil circuit of 4AT, the AT(of other more gears is as 6AT, 8AT etc.) also can use this scheme, just the filler opening of manually operated valve and, the oil outlet of shifting element is different, so the present invention has a grade hydraulic type automatic transmission applicable to any in automobile.
Claims (2)
1. one kind can prevent the automatic transmission oil pressure control system that reverses gear and impact, it comprises main pressure regulator valve (4), secondary pressure regulator valve (5), manually operated valve (6) and four mechanical valve by electromagnetic valve, it is characterized in that, described main pressure regulator valve (4) connects oil pump (3) with the filler opening of secondary pressure regulator valve (5), the control port of four mechanical valve connects the oil outlet of secondary pressure regulator valve, the first mechanical valve (V1), the filler opening of the 3rd mechanical valve (V3) and the 4th mechanical valve (V4) connects the oil outlet of main pressure regulator valve (4), the filler opening of the second mechanical valve (V2) connects the oil outlet of the first mechanical valve (V1), described manually operated valve (V6) is six eight logical valves, its five oil outlets connect respectively three or four gear clutches (C1), the clutches that reverse gear (C3), one or two gear clutches (C2), a break (B1) and two or four that reverses gear and keep off breaks (B2), and three filler openings connect respectively the oil outlet of the second mechanical valve (V2), the 3rd mechanical valve (V3) and the 4th mechanical valve (V4).
2. can prevent according to claim 1 the automatic transmission oil pressure control system that reverses gear and impact, it is characterized in that, use q2, q3, q4 means respectively manually operated valve (6) and the second mechanical valve (V2), three filler openings that the oil outlet of the 3rd mechanical valve (V3) and the 4th mechanical valve (V4) is connected, use c1, c2, c3, b1, b2 means manually operated valve (6) and three or four gear clutches (C1), one or two gear clutches (C2), clutch (C3) reverses gear, one reverse gear break (B1) and two or four five oil outlets being connected of gear breaks (B2), manually operated valve (6) is when six gears, connected relation between each hydraulic fluid port is:
Keep off (P) in Parking: each hydraulic fluid port all is not communicated with;
At reverse gear shift (R): c3 is communicated with q3, and b1 is communicated with q4, and all the other hydraulic fluid ports all are not communicated with;
At neutral (N): each hydraulic fluid port all is not communicated with;
At the automatic catch that advances (D): c1 is communicated with q3, and c2 is communicated with q4, and b2 is communicated with q2, and all the other hydraulic fluid ports all are not communicated with;
In 2 gear automatic catch (2 gear): c1 is communicated with q3, and c2 is communicated with q4, and b2 is communicated with q2, and all the other hydraulic fluid ports all are not communicated with;
At 1 gear (L): c1 is communicated with q3, and c2 is communicated with q4, and b1 is communicated with q2, and all the other hydraulic fluid ports all are not communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100328718A CN102141146B (en) | 2011-01-30 | 2011-01-30 | Automatic transmission oil pressure control system capable of preventing reverse gear impacts |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100328718A CN102141146B (en) | 2011-01-30 | 2011-01-30 | Automatic transmission oil pressure control system capable of preventing reverse gear impacts |
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| Publication Number | Publication Date |
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| CN102141146A CN102141146A (en) | 2011-08-03 |
| CN102141146B true CN102141146B (en) | 2013-12-11 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6454678B1 (en) * | 1999-12-30 | 2002-09-24 | Hyundai Motor Company | Shift control method for automatic transmission |
| CN101082377A (en) * | 2006-05-30 | 2007-12-05 | 捷特科株式会社 | Automatic transmission |
| CN101403436A (en) * | 2008-11-14 | 2009-04-08 | 贵州凯星液力传动机械有限公司 | Shifting system and method for hydraulic speed changer |
| CN101806355A (en) * | 2009-02-12 | 2010-08-18 | 加特可株式会社 | The hydraulic pressure control device of automatic transmission |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100748668B1 (en) * | 2005-12-14 | 2007-08-10 | 현대자동차주식회사 | Manual valve of hydraulic control system for automatic transmission |
| JP4238906B2 (en) * | 2006-10-13 | 2009-03-18 | トヨタ自動車株式会社 | Control device for continuously variable transmission, control method, program for realizing the method, and recording medium recording the program |
-
2011
- 2011-01-30 CN CN2011100328718A patent/CN102141146B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6454678B1 (en) * | 1999-12-30 | 2002-09-24 | Hyundai Motor Company | Shift control method for automatic transmission |
| CN101082377A (en) * | 2006-05-30 | 2007-12-05 | 捷特科株式会社 | Automatic transmission |
| CN101403436A (en) * | 2008-11-14 | 2009-04-08 | 贵州凯星液力传动机械有限公司 | Shifting system and method for hydraulic speed changer |
| CN101806355A (en) * | 2009-02-12 | 2010-08-18 | 加特可株式会社 | The hydraulic pressure control device of automatic transmission |
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| CN102141146A (en) | 2011-08-03 |
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