CN101881332A - Anti-lock automatic transmission oil pressure control device - Google Patents
Anti-lock automatic transmission oil pressure control device Download PDFInfo
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- CN101881332A CN101881332A CN2010102127668A CN201010212766A CN101881332A CN 101881332 A CN101881332 A CN 101881332A CN 2010102127668 A CN2010102127668 A CN 2010102127668A CN 201010212766 A CN201010212766 A CN 201010212766A CN 101881332 A CN101881332 A CN 101881332A
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- control valve
- sun gear
- planet carrier
- valve
- clutch control
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Abstract
An anti-lock automatic transmission oil pressure control device is used for preventing the locking of a transmission, which comprises a planet carrier clutch control valve, a small sun gear clutch control valve and a large sun gear brake control valve. The planet carrier clutch control valve and the small sun gear clutch control valve are two-position three-way valves the oil inlets of which are connected with an oil pump through a manual control valve and a main pressure regulation valve and the normally opened oil outlets thereof respectively control a planet carrier clutch control valve and a small sun gear clutch control valve. The large sun gear brake control valve is a two-position two-way valve, the oil inlet thereof is connected with the normally closed oil outlets of the planet carrier clutch control valve and the small sun gear clutch control valve and the oil outlet thereof controls a large sun gear brake. The invention can prevent the simultaneous combination of the planet carrier clutch, the small sun gear clutch and the large sun gear brake effectively, thoroughly avoid the locking of the automatic transmission and eliminate the potential safety hazard caused by the locking of the automatic transmission.
Description
Technical field
The present invention relates to a kind of locked hydraulic pressure control device of automatic transmission machinery of avoiding, belong to automobile technical field.
Background technique
At present, the automatic transmission of using in the automobile generally uses planetary mechanism to come transferring power, and its working principle as shown in Figure 1.What existing 4 gear transmissions great majority adopted is single clutch or gear of maximum two clutches (perhaps a clutch and a break) control, and the working state of its each gear binding member is as shown in table 1.In the table 1, on behalf of reverse gear, D, R represent forward gear, M1 to represent manual mode, OWC to represent overrunning clutch.
Table 1
The planetary mechanism of automatic transmission comprises three parts: sun gear, planet carrier and gear ring, according to the self-characteristic of planetary mechanism as can be known, when any two elements were braked in the planetary mechanism, the 3rd also can be braked, this moment, three elements had identical motion state, and speed changer is by locked.As can be seen from Table 1, under normal circumstances, when automatic transmission is in the D shelves, can only there be two at most among planet carrier clutch C1, small sun gear clutch C2, the big sun gear break B2 three and be in bonding state, as long as the three is simultaneously in conjunction with causing speed changer locked, this phenomenon is in case take place, and can allow the vehicle moment braking of running at high speed, and serious accident takes place.Planet carrier clutch C1, small sun gear clutch C2, big sun gear break B2 are controlled by oil pressure, existing automatic transmission adopts oil circuit independent of each other that the three is controlled, do not take any anti-locking measure, thereby exist major safety risks.
Summary of the invention
The object of the present invention is to provide a kind of anti-lock automatic transmission oil pressure control device that prevents the automatic transmission mechanical failure.
The alleged problem of the present invention realizes with following technical proposals:
A kind of anti-lock automatic transmission oil pressure control device, comprise planet carrier clutch control valve, small sun gear clutch control valve and big sun gear break control valve in the formation, described planet carrier clutch control valve and small sun gear clutch control valve are two position three-way valve, their filler opening is connected with oil pump with main pressure regulator valve through hand control valve, often leaves hydraulic fluid port and controls planet carrier clutch and small sun gear clutch respectively; Described big sun gear break control valve is a two position two-way valve, and its filler opening connects the normally closed oil outlet of planet carrier clutch control valve and small sun gear clutch control valve, and oil outlet is controlled big sun gear break.
Above-mentioned anti-lock automatic transmission oil pressure control device, described planet carrier clutch control valve, small sun gear clutch control valve and big sun gear break control valve are hydraulic operated valve, respectively by three electromagnetic valve, the control circuit of the control termination automatic transmission of three solenoid valves.
The filler opening of big sun gear break control valve of the present invention connects the normally closed oil outlet of planet carrier clutch control valve and small sun gear clutch control valve, when these two normally closed oil outlets all are in closed state, the filler opening of big sun gear break control valve also is closed, big sun gear break can't in conjunction with.This just makes big sun gear break when being subjected to big sun gear break control valve control, also to be subjected to the restriction of other two control valves, have only in planet carrier clutch control valve and small sun gear clutch control valve and have an action at least, be planet carrier clutch and small sun gear clutch have at least one in conjunction with the time, the filler opening of big sun gear break control valve could obtain oil pressure, greatly the sun gear break just possible in conjunction with; If planet carrier clutch and small sun gear clutch all are in bonding state, then big sun gear break can not in conjunction with.That is to say, even control circuit breaks down, planet carrier clutch, small sun gear clutch and the also combination simultaneously of big sun gear break, the potential safety hazard of bringing has thus been eliminated in the generation of thoroughly having stopped the automatic transmission deadlock phenomenon.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is the automatic transmission fundamental diagram;
Fig. 2 is control principle figure of the present invention;
Fig. 3 is the structural representation of small sun gear clutch control valve, planet carrier clutch control valve and control electromagnetic valve thereof;
Fig. 4 is the structural representation of big sun gear break control valve;
Fig. 5 is an each several part cooperation table of the present invention.
Each label is among the figure: 1, overrunning clutch; 2, speed changer output terminal; 3, gear ring; 4, long planet wheel; 5, planet carrier; 6, big sun gear; 7, lack planet wheel; 8, small sun gear; 9, torque-converters; 10, speed changer input end; 11, torque converter lockup clutch; 12, oil purifier; 13, main pressure regulator valve; 14, secondary pressure regulator valve; 15, hand control valve; 16, throttle pipe; B1, planet carrier break; B2, big sun gear break; C1, planet carrier clutch; C2, small sun gear clutch; C3, big sun gear clutch; S2, S3, S4, solenoid valve; V2, big sun gear break control valve; V3, planet carrier clutch control valve; V4, small sun gear clutch control valve; M, oil pump; P1, filler opening; P2, control port; Q1, normally closed oil outlet; Q2, normal open oil outlet; Q, oil outlet.
Embodiment
The present invention in oil circuit control, utilizes the mechanical interlocked generation of having avoided the locked phenomenon of gearbox from root from the mechanical valve design angle.
Referring to Fig. 3, the planet carrier clutch control valve V3 in left side is a two position three-way valve, and it is a mechanical valve, when spool moves, normally closed oil outlet Q1 oil circuit is opened, and then normal open oil outlet Q2 oil circuit will seal, otherwise normal open oil outlet Q2 oil circuit is opened, and then normally closed oil outlet Q1 oil circuit will seal.Utilize this valve core structure, realize oil circuit control of the present invention.The structure of small sun gear clutch control valve V4 is identical therewith.Among Fig. 3, P2 is control port, it meets oil pump M through secondary pressure regulator valve 14, be provided with one section throttle pipe 16 that diameter is less between P2 and the valve pocket, solenoid valve S3 is a Decompression valves, be connected between throttle pipe 16 and the valve pocket, solenoid valve S3 comes the regulating spool position by control valve pocket oil pressure, thereby controls the aperture of normally closed oil outlet Q1 and normal open oil outlet Q2.
Referring to Fig. 2, the controlling method of automatic transmission is as follows:
Solenoid valve S3 and planet carrier clutch control valve V3 control planet carrier clutch C1 (planet carrier in this Clutch Control La Weina planetary mechanism);
Solenoid valve S4 and small sun gear clutch control valve V4 control small sun gear clutch C2 (small sun gear in this Clutch Control La Weina planetary mechanism);
Solenoid valve S2 and big sun gear break control valve V2 control big sun gear break B2 (the big sun gear in this break control La Weina planetary mechanism).
Three solenoid valves are that (annotate: when solenoid valve cut off the power supply, the oil circuit of its control was a high pressure conditions to normal high flow capacity control electromagnetic valve; When solenoid valve was switched on, the oil circuit of its control was a low-pressure state).
Planet carrier clutch control valve V3 control is led to the oil circuit of C1 and leads to one break-make in two oil circuits of B2 that (if it is logical to lead to the oil circuit of C1 clutch, the oil circuit that then leads to break B2 is disconnected among Fig. 2; Otherwise the oil circuit that leads to C1 is disconnected, and the oil circuit that then leads to B2 is logical);
Small sun gear clutch control valve V4 controls the break-make of leading to the oil circuit of C2 and leading to another oil circuit of B2, and (lead to if lead to the oil circuit of C2, the oil circuit that then leads to B2 is disconnected; Otherwise the oil circuit that leads to C2 is disconnected, and the oil circuit that then leads to B2 is logical).
When solenoid valve S3 cut off the power supply, the control oil channel of planet carrier clutch control valve V3 was a high pressure, and this moment, mechanical spool was shifted to an end, and the oil circuit of C1 is connected, but the oil circuit (leading in two oil circuits of B2 break) that leads to B2 is blocked; Otherwise when solenoid valve S3 switched on, the control oil channel of planet carrier clutch control valve V3 was a low pressure, and this moment, mechanical spool was shifted to the other end under the effect of main oil pressure, and the oil circuit of C1 clutch blocks, and the oil circuit that leads to B2 is switched on.
In like manner, when solenoid valve S4 cut off the power supply, the control oil channel of small sun gear clutch control valve V4 was a high pressure, and this moment, mechanical spool was shifted to an end, and the oil circuit of C2 is connected, but the oil circuit (leading in two oil circuits of B2) that leads to B2 is blocked; Otherwise when solenoid valve S4 switched on, the control oil channel of small sun gear clutch control valve V4 was a low pressure, and this moment, mechanical spool was shifted to the other end under the effect of main oil pressure, and the oil circuit of C2 blocks, and the oil circuit that leads to B2 is switched on.
When all solenoid valve outages, big sun gear break control valve V2, planet carrier clutch control valve V3, small sun gear clutch control valve V4 right-hand member control oil pressure place is a high pressure conditions, the spool of three valves all is pushed to the left side, this moment, the oil circuit of main oil pressure can lead to C2, also can lead to C1, because leading to the oil circuit of B2 is cut off by planet carrier clutch control valve V3 and small sun gear clutch control valve V4, the oil circuit that promptly leads to big sun gear break control valve V2 cuts off, so no matter the S2 solenoid valve is energising or outage, B2 not can in conjunction with, guaranteed that automatic transmission can be not locked.
When S3 outage, S4 energising, planet carrier clutch control valve V3 remains unchanged, and the spool of small sun gear clutch control valve V4 moves right, the oil circuit that leads to C2 is cut off, C2 not can in conjunction with, promptly no matter how S2 moves, and has only two clutches of C1 and B2 (break) combination at most.
With should S4 when outage, S3 energising, the spool of small sun gear clutch control valve V4 is pushed to the left side, the C2 oil circuit is connected, the spool of planet carrier clutch control valve V3 moves right, the oil circuit that leads to C1 is cut off, C1 not can in conjunction with, promptly no matter how S2 moves, and has only two clutches of C2, B2 (break) combination at most.
In sum, the present invention can effectively prevent 2 clutches and 1 break combination simultaneously, has avoided the generation of speed changer machinery deadlock phenomenon.
Claims (2)
1. anti-lock automatic transmission oil pressure control device, it is characterized in that, it comprises planet carrier clutch control valve (V3), small sun gear clutch control valve (V4) and big sun gear break control valve (V2), described planet carrier clutch control valve (V3) and small sun gear clutch control valve (V4) are two position three-way valve, their filler opening (P1) is connected with oil pump (M) with main pressure regulator valve (13) through hand control valve (15), and normal open oil outlet (Q2) is controlled planet carrier clutch (C1) and small sun gear clutch (C2) respectively; Described big sun gear break control valve (V2) is a two position two-way valve, its filler opening (P1) connects the normally closed oil outlet (Q1) of planet carrier clutch control valve (V3) and small sun gear clutch control valve (V4), oil outlet (Q) control big sun gear break (B2).
2. according to the described anti-lock automatic transmission oil pressure control device of claim 1, it is characterized in that, described planet carrier clutch control valve (V3), small sun gear clutch control valve (V4) and big sun gear break control valve (V2) are hydraulic operated valve, respectively by three electromagnetic valve, the control circuit of the control termination automatic transmission of three solenoid valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010212766 CN101881332B (en) | 2010-06-30 | 2010-06-30 | Anti-lock automatic transmission oil pressure control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010212766 CN101881332B (en) | 2010-06-30 | 2010-06-30 | Anti-lock automatic transmission oil pressure control device |
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| CN101881332A true CN101881332A (en) | 2010-11-10 |
| CN101881332B CN101881332B (en) | 2013-10-30 |
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| CN 201010212766 Active CN101881332B (en) | 2010-06-30 | 2010-06-30 | Anti-lock automatic transmission oil pressure control device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63106449A (en) * | 1986-10-21 | 1988-05-11 | Toyota Motor Corp | Hydraulic control device of automatic transmission for automobile |
| JPH05149427A (en) * | 1991-11-29 | 1993-06-15 | Toyota Motor Corp | Hydraulic pressure control device of automatic transmission for vehicle |
| EP0837267A2 (en) * | 1996-10-15 | 1998-04-22 | Hyundai Motor Company | Hydraulic control system for automatic transmissions used in vehicles |
| JPH1144360A (en) * | 1997-07-25 | 1999-02-16 | Aisin Aw Co Ltd | Oil pressure control device for automatic transmission |
| JP2001280468A (en) * | 2000-03-31 | 2001-10-10 | Aisin Seiki Co Ltd | Hydraulic control unit for automatic transmission |
| CN1501013A (en) * | 2002-06-28 | 2004-06-02 | ���Ű�����ʽ���� | Hydraulic control system for automatic transmission |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5149427B2 (en) * | 2011-06-22 | 2013-02-20 | シャープ株式会社 | Encoding device, decoding device, codec decoding system, encoding method, and decoding method |
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2010
- 2010-06-30 CN CN 201010212766 patent/CN101881332B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63106449A (en) * | 1986-10-21 | 1988-05-11 | Toyota Motor Corp | Hydraulic control device of automatic transmission for automobile |
| JPH05149427A (en) * | 1991-11-29 | 1993-06-15 | Toyota Motor Corp | Hydraulic pressure control device of automatic transmission for vehicle |
| EP0837267A2 (en) * | 1996-10-15 | 1998-04-22 | Hyundai Motor Company | Hydraulic control system for automatic transmissions used in vehicles |
| JPH1144360A (en) * | 1997-07-25 | 1999-02-16 | Aisin Aw Co Ltd | Oil pressure control device for automatic transmission |
| JP2001280468A (en) * | 2000-03-31 | 2001-10-10 | Aisin Seiki Co Ltd | Hydraulic control unit for automatic transmission |
| CN1501013A (en) * | 2002-06-28 | 2004-06-02 | ���Ű�����ʽ���� | Hydraulic control system for automatic transmission |
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| CN101881332B (en) | 2013-10-30 |
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