CN101705995B - Hydraulic control device of automatic transmission - Google Patents
Hydraulic control device of automatic transmission Download PDFInfo
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- CN101705995B CN101705995B CN2009103105818A CN200910310581A CN101705995B CN 101705995 B CN101705995 B CN 101705995B CN 2009103105818 A CN2009103105818 A CN 2009103105818A CN 200910310581 A CN200910310581 A CN 200910310581A CN 101705995 B CN101705995 B CN 101705995B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
- F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
- F16H3/663—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another with conveying rotary motion between axially spaced orbital gears, e.g. RAVIGNEAUX
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Abstract
The present invention provides a hydraulic control device of an automatic transmission, and belongs to the technical field of automotive transmission control. The hydraulic control device solves the problems that the conventional hydraulic control device of the transmission has low efficiency, and the oil pump flow is surplus when the rotating speed of the motor is high. The hydraulic control device of the automatic transmission comprises an electronic control system and a hydraulic source connected with the transmission through an oil line, wherein the hydraulic source is used for outputting working oil pressure; the oil line connecting the hydraulic source with the transmission is provided with a manual valve and an electromagnetic valve component in sequence; the electronic control system is connected with the electromagnetic valve component and is used for controlling the switching-on and switching-off of the electromagnetic valve component; the hydraulic source comprises an oil tank, and two or more hydraulic pumps; and an oil inlet of each hydraulic pump is connected with the oil tank, while an oil outlet is communicated with an input port of the manual valve. When the rotating speed of the motor is low, an oil pump and an electric pump can be selected to simultaneously supply oil so as to reduce energy consumption; and when the rotating speed of the motor is high, the electric pump is stopped, and the oil pump separately supplies the oil.
Description
Technical field
The invention belongs to technical field of automotive transmission control, relate to a kind of hydraulic control device of automatic transmission.
Background technique
The formation of utilizing hydraulic pressure to carry out the speed Control of speed changer is gone over well known, be provided with the hydraulic control device for this speed Control at speed changer, such hydraulic control device consists of oil pump and hydraulic control valve, it is configured in mission case, by optionally engaging a plurality of hydraulic pressure bonding apparatuss, reaches a plurality of gears that gear ratio differs from one another.
The mechanical structure part of 01N type automatic transmission commonly used mainly is comprised of 1 planetary gear set, 3 clutches, 2 breaks and 1 one-way wheel.Clutch is divided into front clutch, rear clutch and terminal clutch, and break is divided into pressure, break and low-grade reverse gear brake lower category.Wherein planetary gear set is comprised of 1 Sunny gear, 1 large sun gear, 3 shor planet gears, 3 long planet gears, planetary carrier and gear rings.Speed changer is when work, and valve body is by oil pressure solenoidoperated cluthes, brakeage.
At the electronic controlled transmission technology great majority of applying, are also the nineties exploitations in last century at present, what have may be more early, due to the backwardness of hydraulics and control technique at that time, make its performance can not meet current demand gradually, and efficiency is lower. oil pump feed will meet the minimum speed requirement that produces the minimum pressure requirement and can meet the maximum oil pressure of generation simultaneously, AT generally will determine its flow by meeting traffic demand under the slow-speed of revolution, therefore when the high rotating speed of motor, oil pump flow is often superfluous.For this situation, be necessary the hydraulic control technology of application of advanced.
Summary of the invention
The objective of the invention is for the existing the problems referred to above of the hydraulic control device of existing automatic transmission, and proposed a kind of hydraulic control device of the automatic transmission according to engine speed situation fair supply oil pressure.
Purpose of the present invention can realize by following technical proposal: a kind of hydraulic control device of automatic transmission, comprise automatical control system and the hydraulic power be connected with speed changer by oil circuit, described hydraulic power is for the output services oil pressure, also be provided with successively hand control valve and electromagnetic valve component on the oil circuit of connecting fluid potential source and speed changer, above-mentioned automatical control system connects with electromagnetic valve component, for controlling the break-make of electromagnetic valve component, it is characterized in that, described hydraulic power comprises fuel tank and two or more oil hydraulic pump, the filler opening of oil hydraulic pump is connected with fuel tank, oil outlet is communicated with the input port of hand control valve.
Electromagnetic valve component is connected with break with each clutch in the transmission gear system, automatical control system can be controlled the break-make of electromagnetic valve component, can be respective clutch and break fuel feeding according to situation selectivity such as engine load and the speed of a motor vehicle, to reach the purpose that changes velocity ratio.
In the hydraulic control device of above-mentioned a kind of automatic transmission, the quantity of described oil hydraulic pump is two, is respectively motor-drive pump and oil pump.Oil pump is the gear pump directly driven by motor.When engine speed is low, can select oil pump and motor-drive pump fuel feeding simultaneously, when engine speed is higher, stop motor-drive pump, by the independent fuel feeding of oil pump.
In the hydraulic control device of above-mentioned a kind of automatic transmission, described hand control valve comprises valve body, shift level and is arranged on the spool in valve body, spool is connected with shift level, and described valve body has an input port and the pressure supply port one be connected with electromagnetic valve component and pressure supply port two.
Can change the connected relation of input port and two pressure supply ports by operation shift level and spool, the fluid that pressure supply port can receive input port according to shift pattern offers corresponding clutch and break in speed changer by electromagnetic valve component.Hand control valve switches its valve element position for the gear-change operation that is converted into front traveling-position by basis, and produces based on described operating oil pressure the hydraulic pressure be used for to overtake.
In the hydraulic control device of above-mentioned a kind of automatic transmission, described electromagnetic valve component comprises solenoid valve one, solenoid valve two, solenoid valve three and solenoid valve four, described solenoid valve one, solenoid valve two and solenoid valve three lay respectively at pressure supply port one and lead on the oil circuit of rear clutch, break one and the connection of terminal clutch, and the solenoid valve four fundamental rules are positioned at pressure supply port two-way on the oil circuit of front clutch, pressure supply port two is directly to break two fuel feeding.Utilize the power on/off situation of these solenoid valves, control oil pressure output selectivity ground and supply with above-mentioned these breaks and clutch, to set up a plurality of speed change levels of automatic transmission.
In the hydraulic control device of above-mentioned a kind of automatic transmission, described hydraulic control device also includes radiator and pressure filter, by the hydraulic power fuel feeding.Operating oil pressure enters successively radiator and pressure filter after fluid torque converter, finally removes lubrication axle tooth.
In the hydraulic control device of above-mentioned a kind of automatic transmission, the import of described radiator also directly is communicated with hydraulic power, and is provided with relief valve one between them.When from fluid torque converter, oil pressure out is larger, by fluid torque converter directly to radiator and pressure filter fuel feeding.When the fluid torque converter output oil pressure is not enough, open relief valve one, fluid torque converter and hydraulic power are simultaneously to radiator and pressure filter fuel feeding.
Compared with prior art, when this engine speed is low, can select oil pump and motor-drive pump fuel feeding simultaneously, can reduce the consumption of energy, when engine speed is higher, stop motor-drive pump, by the independent fuel feeding of oil pump.Can realize the flow control to cooler (radiator and pressure filter), when the oil pressure of fluid torque converter output is too small, be supplemented to the cooler fuel feeding by relief valve one.In the situation that all solenoid valve total failure, vehicle still can travel with " 1 " shelves.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of 4 speed planetary gear speed changers.
Fig. 2 is the structural representation of 4 fast ravigneaux planetary gears.
Fig. 3 is asphalt principle figure provided by the present invention.
In figure, front clutch C1; Rear clutch C2; Terminal clutch C3; Break one B1; Break two B2; One-way wheel F; Large sun gear 12; Long planet wheel 13; Small sun gear 14; Short planet wheel 15; Planet carrier 16; Gear ring 17; Fuel tank 19; Oil pump 22; Motor-drive pump 23; Principal pressure modulating valve 25; Hand control valve 26; Pressure regulating solenoid valve 27; Relief valve 2 28; Pressure electromagnetic valve for adjusting 29; Torque converter pressure valve 30; Relief valve 1; Radiator 32; Pressure filter 33; Fluid torque converter (TCC) 34; Solenoid valve 1; Solenoid valve 2 36; Solenoid valve 3 37; Solenoid valve 4 38; Lock valve 39; Oil circuit 1; Oil circuit 2 51; Oil circuit 3 52; Oil circuit 4 54; Oil circuit 5 55; Oil circuit 6 57; Oil circuit 7 58; Oil circuit 8 59; Oil circuit 9 60; Oil circuit 10; Oil circuit 11; Oil circuit 12; Oil circuit 13; Oil circuit 14 oil ducts 1; Oil duct 2 56.
Embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As depicted in figs. 1 and 2, the speed changer that hydraulic control device provided by the present invention is controlled is 4 speed planetary gear speed changers, comprise shift control and variable gear system, shift control wherein comprises front clutch C1, rear clutch C2, terminal clutch C3, break one B1 and break two B2 and an one-way wheel F; Variable gear system is the ravigneaux type planetary gear structure, by the short planet wheel of the large sun gear of a small sun gear 14,12, three 15, three long planet wheels 13, planet carrier 16 and gear rings 17, formed, wherein, short planet wheel 15 is meshed with small sun gear 14, long planet wheel 13 is meshed with large sun gear 12, by the various combination of 3 groups of clutches, 2 groups of breaks and 1 one-way wheel F, realize 4 forward gearss and 1 reverse gear.Break one B1 is " 2 ", " 4 " shelves break, and break two B2 are " R ", " L " shelves break.
Fluid torque converter (TCC) 34 is arranged between motor and speed changer, for engine power is passed to speed changer, it has an airtight active chamber, and liquid circulates in chamber, and wherein pump impeller, turbine and guide wheel link with input shaft, output shaft and housing respectively.During the rotation of driven by engine input shaft, liquid flows out from the centrifugal pump wheel, returns to pump impeller through turbine, guide wheel in turn again, circulates again and again.Pump impeller passes to liquid by the mechanical energy of input shaft.High-speed liquid promotes the turbine rotation, and energy is passed to output shaft, and the variation that relies on liquid and blade interaction to produce the moment of momentum carrys out transmitting torque.
As shown in Figure 3, the hydraulic control device of this automatic transmission comprises oil pump 22 and the motor-drive pump 23 of a fuel tank 19 and oil suction from fuel tank 19, and the oil outlet of oil pump 22 and motor-drive pump 23 shares an oil circuit 1 and is connected on a hand control valve 26.This hand control valve 26 comprises valve body, shift level and is arranged on the spool in valve body, and spool is connected with shift level, and valve body has an input port and two output ports, and two output ports are respectively pressure supply port one and pressure is supplied port two.Speed changer is when work, hand control valve 26 is by oil pressure solenoidoperated cluthes, brakeage, rear clutch C2 is used for driving small sun gear 14, front clutch C1 is used for driving large sun gear 12, terminal clutch C3 drives planet carrier 16, break two B2 braking planet carriers 16, power is by gear ring 17 outputs.
Above-mentioned oil circuit 1 is connected on the input port of hand control valve 26, and pressure supply port is supplied with rear clutch C2, break one B1 and terminal clutch C3 by oil circuit 2 51 shuntings first.After supplying with, the oil circuit of clutch C2 is provided with the solenoid valve 1 of often opening, on the oil circuit of supply break one B1, serial connection is provided with normally closed solenoid valve 2 36 and lock valve 39, the oil circuit of supplying with terminal clutch C3 is provided with normally closed solenoid valve 3 37, and the oil pressure of the rear clutch C2 of supply and terminal clutch C3 acts on again the control end of lock valve 39 simultaneously.Pressure supply port two-way is crossed oil circuit 3 52 shuntings and is supplied with front clutch C1 and break two B2, wherein supplies with serial connection on the oil circuit of break two B2 and is provided with normally closed solenoid valve 4 38.In the present embodiment, solenoid valve 1, solenoid valve 2 36, solenoid valve 3 37 and solenoid valve 4 38 are proportional electromagnetic valve.Automatical control system is automatic transmission case control unit (TCU), controls the break-make of each solenoid valve in this control gear.
The oil outlet of oil pump 22 and motor-drive pump 23 also leads to oil duct 1 simultaneously, and oil duct 1 is divided into three tunnels, and the oil circuit 5 55 of leading up to acts on principal pressure modulating valve 25 left ends, overcomes spring force and makes principal pressure modulating valve 25 in left position; The second tunnel leads to oil duct 2 56 by throttle orifice, acts on the right-hand member of principal pressure modulating valve 25 after pressure regulating solenoid valve 27 is regulated; Third Road leads to oil circuit 4 54 and leads to oil circuit 8 59 and oil circuit 9 60 through principal pressure modulating valve 25.Above-mentioned pressure supply port two also is connected with the right-hand member of oil circuit 7 58 to principal pressure modulating valve 25.Hand control valve 26 is when " 2 " positions (R bar position), and hand control valve 26 oil pressure out leads to oil circuit 7 58, acts on the right-hand member of principal pressure modulating valve 25, increases the system principal pressure.
When oil pump 22 rotating speeds raise, flow is when excessive, the oil pressure of principal pressure modulating valve 25 left ends raises, and overcomes the spring force of right-hand member and acts on the oil pressure of right-hand member, spool moves to right, principal pressure modulating valve 25, in left position, makes unnecessary oil supply with lubrication system; By electromagnetic valve for adjusting 27 can regulating action in the oil pressure of principal pressure modulating valve 25 right-hand members, thereby control the movement of principal pressure modulating valve 25 spools, finally reach the requirement of control system principal pressure.
Oil circuit 8 59 is split into oil circuit 10 after by a relief valve 2 28 and oil circuit 11 leads to a torque converter pressure valve 30, torque converter pressure valve 30 enters the oil pressure of fluid torque converter (TCC) 34 for adjusting, be connected with pressure electromagnetic valve for adjusting 29 on torque converter pressure valve 30.When pressure electromagnetic valve for adjusting 29 no electric circuit, torque converter pressure valve 30 is in left position, fluid torque converter (TCC) 34 separates, oil circuit 11 by torque converter pressure valve 30 and fluid torque converter (TCC) 34 to oil circuit 12, oil circuit 12 leads to oil circuit 13 by torque converter pressure valve 30 again, final radiator 32 and the pressure filter 33 of leading to, finally go to lubricate, the cooling shaft tooth.Oil duct 1 also distributes oil circuit 6 57, after excess pressure electromagnetic valve for adjusting 29 is regulated, acts on torque converter pressure valve 30 right-hand members.When 29 energising of pressure electromagnetic valve for adjusting, torque converter pressure valve 30 is in right position, and fluid torque converter (TCC) 34 engages, and oil circuit 10 leads to oil circuit 12 locking torque converters (TCC) 34 by torque converter pressure valve 30.Pressure regulating solenoid valve 27, pressure electromagnetic valve for adjusting 29 equal pressure valves regulate to form line pressure by the oil pressure to oil pump 22 and motor-drive pump 23 generations.
When from fluid torque converter, oil pressure (oil circuit 13) out is greater than the spring force of one-way valve and the oil pressure oil circuit 14; fluid torque converter (TCC) 34 and hydraulic power are simultaneously to radiator 32 and pressure filter 33 fuel feeding; oil pressure on oil circuit 14 is during higher than the spring force of relief valve one 31 left ends; relief valve 1 is opened; part fluid is let out toward fuel tank 19, the protection cooler.
The working condition of each clutch and break when table 1 is each speed change gear:
Table 1
As shown in table 1, when hand control valve is positioned at " D " shelves, each of speed changer grade drive path is as follows:
During " 1 " shelves, automatic transmission case control unit (TCU) separates front clutch C1 by controlling solenoid valve 4 38, one-way wheel F works, planet carrier 16 maintains static, and transmission of power is by the output shaft of fluid torque converter (TCC) 34 → rear clutch C2 → small sun gear 14 → short planet wheel 15 → long planet wheel 13 → gear ring 17.
During " 2 " shelves, solenoid valve 4 38 outages separate front clutch C1, solenoid valve 2 36 energisings, and break one B1 is controlled large sun gear 12 brakings by solenoid valve 2 36.Transmission of power is by the output shaft of fluid torque converter (TCC) 34 → rear clutch C2 → small sun gear 14 → short planet wheel 15 → long planet wheel 13 → gear ring 17.
During " 3 " shelves, rear clutch C2 and terminal clutch C3 engage, and small sun gear 14 and large sun gear 12 are driven simultaneously, and due to the diameter difference of 2 sun gears, planetary gear set is fixed, and whole planetary gear set is just made as a whole outputting power.
Speed changer is when machinery " 3 " shelves, and solenoid valve 3 37 energisings engage terminal clutch C3, directly drive planet carrier 16, and planetary gear set is locked, and power is directly transmitted by terminal clutch C3.
During " 4 " shelves, solenoid valve one 35 energisings, solenoid valve 4 38 outages, make front clutch C1 separate with rear clutch C2, and solenoid valve 2 36 energisings simultaneously engage break one B1.Power drives planet carrier 16 around large sun gear 12 rotations by terminal clutch C3 like this, and now large sun gear 12 is fixed, and power is able to by gear ring 17 outputs.
During reverse gear, solenoid valve 4 38 energisings, hand control valve 26 is supplied with front clutch C1 and break two B2 pressure, and front clutch C1 drives large sun gear 12, break two B2 braking planet carriers 16, transmission of power is through front clutch C1 → large sun gear 12 → long planet wheel 13 → gear ring 17.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (4)
1. the hydraulic control device of an automatic transmission, comprise automatical control system and the hydraulic power be connected with speed changer by oil circuit, described hydraulic power is for the output services oil pressure, also be provided with successively hand control valve (26) and electromagnetic valve component on the oil circuit of connecting fluid potential source and speed changer, above-mentioned automatical control system connects with electromagnetic valve component, for controlling the break-make of electromagnetic valve component, it is characterized in that, described hydraulic power comprises fuel tank (19) and two oil hydraulic pumps, the filler opening of oil hydraulic pump is connected with fuel tank (19), and oil outlet is communicated with the input port of hand control valve (26); Described oil hydraulic pump is respectively motor-drive pump (23) and oil pump (22); The oil outlet of oil pump (22) and motor-drive pump (23) also leads to oil duct one (53) simultaneously, and oil duct one (53) is divided into three tunnels, and the oil circuit five (55) of leading up to acts on principal pressure modulating valve (25) left end; The second tunnel leads to oil duct two (56) by throttle orifice, acts on the right-hand member of principal pressure modulating valve (25) after pressure regulating solenoid valve (27) is regulated; Third Road leads to oil circuit four (54) and leads to oil circuit eight (59) and oil circuit nine (60) through principal pressure modulating valve (25); Described hydraulic control device also includes radiator (32) and pressure filter (33), oil circuit eight (59) is split into oil circuit ten (61) and oil circuit ten one (62) after by a relief valve two (28), oil circuit ten one (62) by torque converter pressure valve (30) and fluid torque converter (34) to oil circuit ten two (64), oil circuit ten two (64) leads to oil circuit ten three (65) by torque converter pressure valve (30) again, finally leads to radiator (32) and pressure filter (33) and removes lubrication axle tooth; In oil circuit ten three (65) when fluid torque converter (34) oil pressure out is greater than the spring force of one-way valve and the oil pressure oil circuit ten four (67), fluid torque converter (34) and hydraulic power are simultaneously to radiator (32) and pressure filter (33) fuel feeding, oil pressure on oil circuit ten four (67) is during higher than the spring force of relief valve one (31) left end, relief valve one (31) is opened, and part fluid is let out toward fuel tank (19).
2. the hydraulic control device of a kind of automatic transmission according to claim 1, it is characterized in that, described hand control valve (26) comprises valve body, shift level and is arranged on the spool in valve body, spool is connected with shift level, and described valve body has an input port and the pressure supply port one be connected with electromagnetic valve component and pressure supply port two.
3. the hydraulic control device of a kind of automatic transmission according to claim 2, it is characterized in that, described electromagnetic valve component comprises solenoid valve one (35), solenoid valve two (36), solenoid valve three (37) and solenoid valve four (38), described solenoid valve one (35), solenoid valve two (36) and solenoid valve three (37) lay respectively at pressure supply port one and lead to rear clutch (C2), on the oil circuit that break one (B1) and terminal clutch (C3) are communicated with, solenoid valve four (38) is positioned at pressure supply port two-way on the oil circuit of front clutch (C1), pressure supply port two is directly to break two (B2) fuel feeding.
4. the hydraulic control device of a kind of automatic transmission according to claim 3, is characterized in that, the import of described radiator (32) also directly is communicated with hydraulic power, and be provided with relief valve one (31) between them.
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| CN2009103105818A CN101705995B (en) | 2009-11-27 | 2009-11-27 | Hydraulic control device of automatic transmission |
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| CN2009103105818A CN101705995B (en) | 2009-11-27 | 2009-11-27 | Hydraulic control device of automatic transmission |
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| CN101705995B true CN101705995B (en) | 2013-12-18 |
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| JP5380402B2 (en) * | 2010-09-10 | 2014-01-08 | ジヤトコ株式会社 | Automatic transmission and hydraulic control device |
| US8915076B2 (en) | 2011-01-12 | 2014-12-23 | Gm Global Technology Operations, Llc | Transmission hydraulic control system having flow augmentation |
| DE102012110762A1 (en) * | 2012-11-09 | 2014-05-15 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Arrangement for supplying lubricating oil to gear items of combustion engine of motor vehicle, has oil line system comprising passages, and lateral drive for driving oil pump to convey lubricating oil to motor vehicle |
| KR101706492B1 (en) * | 2013-03-19 | 2017-02-13 | 쟈트코 가부시키가이샤 | Lubricant-flow-rate control device for automatic transmission, and lubricant-flow-rate control method |
| US9732847B2 (en) | 2014-06-16 | 2017-08-15 | Ford Global Technologies, Llc | Transmission and hydraulic control system |
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| CN106979286B (en) * | 2017-05-19 | 2023-10-03 | 福建万润新能源科技有限公司 | Dry friction external control four-gear transmission |
| CN106939929A (en) * | 2017-05-19 | 2017-07-11 | 福建万润新能源科技有限公司 | A kind of shift transmission of mono-tooth ring dry friction external control three |
| CN109958765B (en) * | 2019-04-26 | 2024-03-26 | 南京劲力变速器科技有限公司 | Hydraulic control system and front-mounted rear-drive hydraulic automatic gearbox comprising same |
| CN115342184A (en) * | 2022-09-02 | 2022-11-15 | 奇瑞汽车股份有限公司 | Hydraulic system for hybrid transmission case and automobile |
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Application publication date: 20100512 Assignee: Zhejiang Jili Speed Variator Co., Ltd. Assignor: Zhejiang Geely Automobile Research Institute Co., Ltd., Zhejiang Geely Holding Group Company Limited Contract record no.: 2014330000106 Denomination of invention: Hydraulic control device of automatic transmission Granted publication date: 20131218 License type: Exclusive License Record date: 20140423 |
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