CN1734133A - Method and apparatus for cooling and lubricating a hybrid transmission - Google Patents
Method and apparatus for cooling and lubricating a hybrid transmission Download PDFInfo
- Publication number
- CN1734133A CN1734133A CNA2005100560235A CN200510056023A CN1734133A CN 1734133 A CN1734133 A CN 1734133A CN A2005100560235 A CNA2005100560235 A CN A2005100560235A CN 200510056023 A CN200510056023 A CN 200510056023A CN 1734133 A CN1734133 A CN 1734133A
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- Prior art keywords
- fluid
- rotatingshaft
- chamber
- planet carrier
- crack
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- Y02T10/6204—
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- Y02T10/6282—
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- Y02T10/641—
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- General Details Of Gearings (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Motor Or Generator Frames (AREA)
- Gear-Shifting Mechanisms (AREA)
- Mechanical Operated Clutches (AREA)
- Hybrid Electric Vehicles (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Cooling System (AREA)
- Retarders (AREA)
- Rolling Contact Bearings (AREA)
Abstract
A method and apparatus for efficiently cooling and lubricating rotating components in a hybrid transmission is provided. By efficiently managing cooling flow to and between the rotating elements, flow requirements and associated pumping requirements within the drive unit are minimized. In addition, by providing a method for placing the fluid directly on the required components, spin losses associated with component contact with stray oil are reduced. Combined, the reduction in pumping and spin losses create a more efficient drive unit and an overall more efficient hybrid drive system which directly leads to higher fuel economy.
Description
The cross reference of related application
The application requires the rights and interests of the U.S. Provisional Application 60/555,141 of proposition on March 22nd, 2004, and described whole provisional application is involved for referencial use in this application.
Technical field
The present invention relates to cool off and the method for lubricated hybrid transmission.
Technical background
Owing to desire further to improve the Economy of fuel for motor vehicle and reduce effulent, the hybrid electrically Motor Vehicle produced strong interest.This Motor Vehicle contains traditional internal-combustion engine and one or more motor usually, is used for power-assist or energy storage according to operation mode.For making fuel economy become maximum, intrasystem each parts should be designed to efficient the best.
The content of invention
The effective cooling that the invention provides each rotatable parts in the hybrid transmission reaches lubricated.By controling flow to each rotatable parts and the cooling liquid between them stream effectively, liquid stream demand and the moving demand of pump in the drive unit are minimized.In addition, make described fluid directly place method on each required parts, reduced and the relevant spin loss of parts of the spuious oil of contact by providing.The minimizing pump is moving to combine with reducing spin loss, has created the higher hybrid drive system of more effective drive unit and total efficiency, directly causes higher fuel economy.
Described method of the present invention comprises fluid is pumped into first rotatingshaft from container.First rotatingshaft is configured with flow channel, and fluid transmits by described flow channel, and described flow channel is preferably by a plurality of first seal with buss.First rotatingshaft also is configured with a plurality of apertures that described fluid can pass through.After flowing out each aperture of first rotatingshaft, described fluid is imported in the chamber, crack between first rotatingshaft and second rotatingshaft.Chamber, described crack is preferably also by a plurality of second seal with buss.Fluid in the chamber, crack can directly be applied on the planet carrier of planetary gear set by the aperture on second rotatingshaft, with cooling and lubricated described planet carrier.Can leak that one or more lining contact surfaces cool off and lubricated a plurality of first and second linings by the fluid that allows prearranging quatity.
According to preferential embodiment of the present invention, can realize cooling and lubricated one or more thrust-bearings from the fluid that each lining leaked.
According to another preferential embodiment of the present invention, can realize that from the fluid that each lining leaked providing additional cooling to reach to planet carrier lubricates.
The preferential embodiment of another that also has according to the present invention, the fluid that is applied to planet carrier can change direction more preferably to cool off planet carrier by commutator.
Another most preferred embodiment that still has according to the present invention, catcher can be finished and capture spuious fluid, and avoid excessive spin loss thus.
When each accompanying drawing of contact, can make above-mentioned characteristic of the present invention and advantage and other characteristic and advantage easily become obvious from the following detailed description of implementing optimal mode of the present invention.
Description of drawings
Fig. 1 is the simple partial sectional view according to mixing machine-electric actuator of the present invention;
Fig. 2 is the simple partial sectional view of mixing machine-electric actuator;
Fig. 3 is the simple partial sectional view of forward part of the transmission device of Fig. 1; With
Fig. 4 is the simple partial sectional view of rear section of the transmission device of Fig. 1.
Implement optimal mode of the present invention
With reference to the accompanying drawings, wherein identical label indicates identical parts, and Fig. 1 shows the first half of transmission device 10 with sectional view.The Lower Half of transmission device (not shown) is arranged in the offside of central axis 12.First and second electric machine assembly 14,16 is arranged around central axis 12 respectively in transmission device 10.Main shaft 20 is arranged longitudinally, can rotate around central axis 12.Axle in a plurality of, for example interior axle 22 is arranged coaxially and can be rotated around central axis 12 equally around main shaft 20.Input shaft 24 be arranged in the anterior of main shaft 20 and rotatable with from the transmission of power of motor (not shown) to transmission device 10.Output shaft 25 is arranged in the rear portion of main shaft 20.As will be described in further detail below, main shaft 20 and input shaft 24 preferably hollow be easy to the cooling and lubrication gear 10.One or more clutch pack that transmission device 10 contains (shown respectively first, second, third and four clutches 26,28,30 and 32) connect one or more first, second and third planetary gear set 34,36 and 38 respectively, so as with different speed ratio transferring power to output member (not shown).As the technician knew, each planetary gear set contained sun gear member, planetary pinion shaft assembly and gear ring (internal gear) part.The 5th clutch is called the cut-out clutch, can be used for separating with on every side structural element reversing decoupling device 44 (being also referred to as damping spring), and direct connection between motor and the transmission device is provided.
With reference to figure 2, the pump 49 before gear lubrication liquid 48 is positioned in the supporting 50 is conveyed into main shaft 20 centers and the axle 24 from cistern 51, and main shaft 20 and input shaft 24 turn round on the total length of drive unit jointly.The effect of lining 52 (being shown among Fig. 3 best) is: when input shaft 24 and main shaft 20 rotates and axially relatively move each other, fluid 48 is sealed between them.The effect of lining 54 (being shown among Fig. 4 best) is: when main shaft 20 and output shaft 25 rotates and axially relatively move each other, fluid 48 is sealed between them.The lining 52,54 that is used for keep-uping pressure at main shaft 20 also is suitable for applying best Lubricants 48.
Be the position that guarantees that Lubricants directly is sent to be needed, contain each parts that is useful on the various rotating element groups of connection in the lubricated scheme of the present invention.More precisely, the some axles coaxial with main shaft 20 such as sun gear shaft 34S and 36S (being shown in Fig. 3 and 4), are used to transmit the pressure flow body.
With reference to figure 3, the gap between sun gear shaft 34S and the main shaft 20 constitutes chamber, crack 56.Similarly, as shown in Figure 4, the gap between sun gear shaft 36S and the main shaft 20 constitutes chamber, crack 58.Main shaft 20 is configured with a plurality of outlets 60,62 that are suitable for the pressure flow body is released into respectively from main shaft 20 chamber, crack 56,58.
With reference to figure 3, lining 52 and lining 64,66 are suitable for keeping hydrodynamic pressure in chamber 56 again.Lubricants 48 by allowing prearranging quatity lining 52,64 and 66 with their rotatingshafts 20 or 24 separately between leak and come the cooling of lining 52,64 and 66 to be provided and to lubricate.More precisely, leaked between lining 52 and the input shaft 24 by the Lubricants 48 that allows prearranging quatity and cooled off and lubricated lining 52.Leaked between lining 64,66 and the main shaft 20 by the Lubricants 48 that allows prearranging quatity and to cool off and lubricated lining 64.The amount that lining leaks can be controlled by the pressure of regulating between given lining and the insertion rotatingshaft in it that cooperates and/or regulate Lubricants 48.For improving lubricating efficiency, as will be described in further detail below, this lining leakage is changed direction then and is used for lubricating other each parts.
Sun gear shaft 34S is configured with aperture 70.There is pressure lubricating liquid 48 56 to spread, and shown in the arrow that the expression fluid flows, arrives above the planet carrier 34C, with cooling and lubricated planet carrier 34C through aperture from the chamber.The size of aperture 70 is preferably based on the cooling/lubricating requirement of planet carrier 34C in the concrete application and selects.In addition, the amount of the fluid 48 that transmits by aperture 70 changes by regulated fluid pressure.Planet carrier 34C is also cooled off by the lubricating fluid 48 that leaked from lining 52,64 and is lubricated, shown in the arrow that the expression fluid flows among Fig. 3.According to preferential embodiment, the Lubricants 48 that leaked from lining 52 additional cooling and lubricated thrust-bearing 53 when it is commutated to planet carrier 34C.Similarly, the Lubricants 48 that leaked from lining 64 cools off and has lubricated thrust-bearing 55 when it is turned into planet carrier 34C.
With reference to figure 4, lining 54 and lining 72 (being shown in Fig. 3) and lining 74 are suitable for keeping hydrodynamic pressure in the mode that similar above is described chamber 56 in chamber 58. Lining 54,72 and 74 leaked by the Lubricants 48 that allows prearranging quatity and cools off between each lining and the main shaft 20 and lubricate.The amount that lining leaks is controlled by the pressure of regulating between given lining and the insertion rotatingshaft in it that cooperates and/or regulate Lubricants 48.For improving lubricating efficiency, as will be described in further detail below, this lining leakage is changed direction then and is used for lubricating other each parts.
Sun gear shaft 36S is configured with aperture 76.There is pressure lubricating liquid 48 58 to spread, and shown in the arrow that the expression fluid flows, arrives above the planet carrier 36C, with cooling and lubricated planet carrier 36C through aperture 76 from the chamber.The size of aperture 76 is preferably based on the cooling/lubricating requirement of planet carrier 36C in the concrete application and selects.In addition, the amount of the fluid 48 that transmits by aperture 76 changes by regulated fluid pressure.As shown in Figure 3, planet carrier 36C is also cooled off by the lubricating fluid 48 that leaked from lining 66,72 and is lubricated, shown in the arrow that the expression fluid flows.According to preferential embodiment, the Lubricants 48 that leaked from lining 66 additionally cools off and has lubricated thrust-bearing 67 when it is turned into planet carrier 36C.Similarly, the Lubricants 48 that leaked from lining 72 cools off and has lubricated thrust-bearing 69 when it is turned into planet carrier 36C.
With reference to figure 4, sun gear shaft 36S also is configured with aperture 78 again.There is pressure lubricating liquid 48 58 to spread, and shown in the arrow that the expression fluid flows, arrives above the planet carrier 38C, with cooling and lubricated planet carrier 38C through aperture 78 from the chamber.The size of aperture 78 is preferably based on the cooling/lubricating requirement of planet carrier 38C in the concrete application and selects.In addition, the amount of the fluid 48 that transmits by aperture 78 changes by regulated fluid pressure.Planet carrier 38C is also cooled off by the Lubricants that leaked from lining 74 and is lubricated, shown in the arrow that the expression fluid flows.According to preferential embodiment, the Lubricants 48 that leaked from lining 74 additionally cools off when it is turned into planet carrier 38C and lubricating thrust bearing 75.
With reference to figure 3 and 4, be preferably a plurality of commutators 80 and be used to guide the fluid that is present in an aperture 70 and 76 to each parts that is fit to.Be preferably a plurality of catchers 82 and finish the spuious fluid of minimizing, otherwise described spuious fluid can cause excessive spin loss.
Implement optimal mode of the present invention though described in detail, technician related to the present invention will recognize various variation structures and put into practice embodiments of the invention in the target zone of the appended claims.
Claims (17)
1. cooling reaches a kind of device of lubricated hybrid transmission, comprising:
Fluid container;
Be configured with first rotatingshaft of flow channel in it, described first rotatingshaft also is configured with a plurality of first apertures;
Be configured with second rotatingshaft of a plurality of second apertures, between first rotatingshaft and second rotatingshaft, constitute the chamber, crack, be communicated with on chamber, described crack and described a plurality of first and second aperture fluids;
Planetary gear set with planet carrier; With
Pump is suitable for the fluid from described container is conveyed in the flow channel of first rotatingshaft through described a plurality of first apertures; Be conveyed into chamber, described crack neutralization through described a plurality of second apertures and be delivered on the planet carrier, make planet carrier be cooled and lubricate.
2. device as claimed in claim 1 also comprises a plurality of first linings, and described first lining is suitable for sealing the flow channel of first rotatingshaft, and described a plurality of first linings are configured to be used for leaking the fluid of prearranging quatity with cooling and lubricated each lining.
3. device as claimed in claim 2 is characterized in that: finish cooling and lubricated first thrust-bearing by the fluid that described a plurality of first linings leaked, and the fluid that was leaked after this is finished cooling and lubricated described planet carrier.
4. device as claimed in claim 2 also comprises a plurality of second linings, and described second lining is suitable for sealing chamber, described crack, and described a plurality of second linings are configured to be used for leaking the fluid of prearranging quatity with cooling and lubricated described lining.
5. device as claimed in claim 4 is characterized in that: finish cooling and lubricated second thrust-bearing by the fluid that described a plurality of second linings leaked, and the fluid that was leaked after this is finished cooling and lubricated described planet carrier.
6. device as claimed in claim 1 also comprises a plurality of commutators so that fluid changes direction, cools off planet carrier thus best.
7. device as claimed in claim 1 comprises that also a plurality of catchers to capture spuious fluid, avoid excessive spin loss thus.
8. a cooling reaches the device that lubricates hybrid transmission, comprising:
Fluid container;
Be configured with first rotatingshaft of flow channel in it, described first rotatingshaft also is configured with a plurality of first apertures;
Be suitable for sealing a plurality of first linings of the flow channel of first rotatingshaft, described first lining is configured to be used for leaking the fluid of prearranging quatity with cooling and lubricated each lining;
Be configured with second rotatingshaft of a plurality of second apertures, constitute the chamber, crack between first rotatingshaft and second rotatingshaft, chamber, described crack is communicated with described a plurality of first and second aperture fluids;
Be suitable for sealing a plurality of second linings in chamber, described crack, described a plurality of second linings are configured to leak the fluid of prearranging quatity with cooling and lubricated described each lining;
Planetary gear set with planet carrier; With
Pump is suitable for the fluid from liquid bath is conveyed in the flow channel of first rotatingshaft through described a plurality of first apertures; Be conveyed in the chamber, described crack and be delivered on the planet carrier through described a plurality of second apertures, cause planet carrier to be cooled and lubricate.
9. device as claimed in claim 8 also comprises a plurality of commutators so that fluid changes direction, cools off planet carrier thus best.
10. device as claimed in claim 8 comprises that also a plurality of catchers to capture spuious fluid, avoid excessive spin loss thus.
11. the method for a cooling and lubricated hybrid transmission comprises:
First rotatingshaft that is configured with flow channel in it is provided, and described first rotatingshaft also is configured with a plurality of apertures;
Seal the flow channel in described first rotatingshaft;
Going in first rotatingshaft from the FLUID TRANSPORTATION of container;
Form the chamber, crack between first rotatingshaft and second rotatingshaft, chamber, described crack is communicated with the aperture fluid;
Seal chamber, described crack;
Fluid from described a plurality of apertures is distributed in the chamber, crack; With
Fluid from the chamber, crack is applied to through second rotatingshaft on the planet carrier of planetary gear set, with cooling and lubricated described planet carrier.
12. the method as claim 11 is characterized in that: the described sealing that the chamber, crack is carried out comprises a plurality of linings that use is suitable for sealing the chamber, crack.
13., comprise that also the surface of leaking lining by the fluid that allows prearranging quatity cools off and lubricated described lining as the method for claim 12.
14., also comprise the fluid that leaks is guided on the planet carrier to cool off and to lubricate it as the method for claim 13.
15. the method as claim 14 is characterized in that: to the fluid from the chamber, crack carry out described apply to comprise make fluid change direction to cool off planet carrier best.
16., also comprise capturing spuious fluid, to avoid excessive spin loss as the method for claim 15.
17. the method as claim 11 is characterized in that: the described conveying that the fluid from cistern is carried out comprises the fluid of pumping predetermined pressure, so that can change the rate of flow of fluid that is applied to planet carrier.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55514104P | 2004-03-22 | 2004-03-22 | |
| US60/555141 | 2004-03-22 | ||
| US11/060075 | 2005-02-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1734133A true CN1734133A (en) | 2006-02-15 |
| CN100460721C CN100460721C (en) | 2009-02-11 |
Family
ID=35581203
Family Applications (21)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100560201A Active CN100439760C (en) | 2004-03-22 | 2005-03-22 | Hybrid electro-mechanical transmission park system access cover and method |
| CN2005100559454A Expired - Fee Related CN1722571B (en) | 2004-03-22 | 2005-03-22 | Mixing power machine - wire insulator with threaded insert in the electrical gear |
| CNB2005100560432A Expired - Fee Related CN100439759C (en) | 2004-03-22 | 2005-03-22 | Hydraulic circuit for torsional damper assembly of an electrically variable transmission |
| CNB2005100560235A Active CN100460721C (en) | 2004-03-22 | 2005-03-22 | Method and apparatus for cooling and lubricating a hybrid transmission |
| CNB2005100560220A Active CN100460723C (en) | 2004-03-22 | 2005-03-22 | Motor drive donkey pump for torsional damper of an electrically variable transmission device |
| CNB2005100717157A Expired - Fee Related CN100436892C (en) | 2004-03-22 | 2005-03-22 | Hybrid electro-mechanical transmission with secured hub for park pawl loading and method |
| CNA2005100591553A Pending CN1701996A (en) | 2004-03-22 | 2005-03-22 | Non-sealed park actuator guide for hybrid transmission and method |
| CNB2005100591568A Expired - Fee Related CN100472103C (en) | 2004-03-22 | 2005-03-22 | Hydraulic circuit for torsional damper assembly of an electrically variable transmission |
| CNB2005100559469A Expired - Fee Related CN100550579C (en) | 2004-03-22 | 2005-03-22 | The method of motor/generator and cooling electro-mechanical transmission |
| CN2005100591549A Expired - Fee Related CN1707143B (en) | 2004-03-22 | 2005-03-22 | Sun gear bushing and sleeve and method for sealing in a hybrid electromechanical automatic transmission |
| CNB2005100637646A Active CN100384064C (en) | 2004-03-22 | 2005-03-22 | Motor resolver assemble and method for measuring rotor speed and position |
| CNB200510056024XA Active CN100416132C (en) | 2004-03-22 | 2005-03-22 | Torsional damper for electrically-variable transmission |
| CNA2005100637631A Pending CN1728508A (en) | 2004-03-22 | 2005-03-22 | Integrated motor bearing springs for hybrid electro-mechanical transmission and method |
| CNA2005100560216A Pending CN1737394A (en) | 2004-03-22 | 2005-03-22 | Transmission cluthes and method of cooling |
| CNB2005100591534A Expired - Fee Related CN100380009C (en) | 2004-03-22 | 2005-03-22 | Snap ring apparatus for hybrid transmission device |
| CN200510059151A Expired - Fee Related CN100585232C (en) | 2004-03-22 | 2005-03-22 | Hybrid electro-mechanical transmission park system and method of assembly |
| CNB2005100559473A Expired - Fee Related CN100433506C (en) | 2004-03-22 | 2005-03-22 | Method for building electric connection in the mixing type mechanical-electrical gear |
| CNB2005100637608A Active CN100436883C (en) | 2004-03-22 | 2005-03-22 | Lubrication system and method for hybrid electro-mechanical planetary transmission components |
| CNB2005100637627A Expired - Fee Related CN100422598C (en) | 2004-03-22 | 2005-03-22 | Transmission case for lube return and method |
| CNB2005100560428A Active CN100521369C (en) | 2004-03-22 | 2005-03-22 | Wiring connection module for hybrid electro-mechanical drive device |
| CN2005100637650A Expired - Fee Related CN1734132B (en) | 2004-03-22 | 2005-03-22 | Electro-mechanical transmission case and method for assembling electro-mechanical transmission case |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100560201A Active CN100439760C (en) | 2004-03-22 | 2005-03-22 | Hybrid electro-mechanical transmission park system access cover and method |
| CN2005100559454A Expired - Fee Related CN1722571B (en) | 2004-03-22 | 2005-03-22 | Mixing power machine - wire insulator with threaded insert in the electrical gear |
| CNB2005100560432A Expired - Fee Related CN100439759C (en) | 2004-03-22 | 2005-03-22 | Hydraulic circuit for torsional damper assembly of an electrically variable transmission |
Family Applications After (17)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100560220A Active CN100460723C (en) | 2004-03-22 | 2005-03-22 | Motor drive donkey pump for torsional damper of an electrically variable transmission device |
| CNB2005100717157A Expired - Fee Related CN100436892C (en) | 2004-03-22 | 2005-03-22 | Hybrid electro-mechanical transmission with secured hub for park pawl loading and method |
| CNA2005100591553A Pending CN1701996A (en) | 2004-03-22 | 2005-03-22 | Non-sealed park actuator guide for hybrid transmission and method |
| CNB2005100591568A Expired - Fee Related CN100472103C (en) | 2004-03-22 | 2005-03-22 | Hydraulic circuit for torsional damper assembly of an electrically variable transmission |
| CNB2005100559469A Expired - Fee Related CN100550579C (en) | 2004-03-22 | 2005-03-22 | The method of motor/generator and cooling electro-mechanical transmission |
| CN2005100591549A Expired - Fee Related CN1707143B (en) | 2004-03-22 | 2005-03-22 | Sun gear bushing and sleeve and method for sealing in a hybrid electromechanical automatic transmission |
| CNB2005100637646A Active CN100384064C (en) | 2004-03-22 | 2005-03-22 | Motor resolver assemble and method for measuring rotor speed and position |
| CNB200510056024XA Active CN100416132C (en) | 2004-03-22 | 2005-03-22 | Torsional damper for electrically-variable transmission |
| CNA2005100637631A Pending CN1728508A (en) | 2004-03-22 | 2005-03-22 | Integrated motor bearing springs for hybrid electro-mechanical transmission and method |
| CNA2005100560216A Pending CN1737394A (en) | 2004-03-22 | 2005-03-22 | Transmission cluthes and method of cooling |
| CNB2005100591534A Expired - Fee Related CN100380009C (en) | 2004-03-22 | 2005-03-22 | Snap ring apparatus for hybrid transmission device |
| CN200510059151A Expired - Fee Related CN100585232C (en) | 2004-03-22 | 2005-03-22 | Hybrid electro-mechanical transmission park system and method of assembly |
| CNB2005100559473A Expired - Fee Related CN100433506C (en) | 2004-03-22 | 2005-03-22 | Method for building electric connection in the mixing type mechanical-electrical gear |
| CNB2005100637608A Active CN100436883C (en) | 2004-03-22 | 2005-03-22 | Lubrication system and method for hybrid electro-mechanical planetary transmission components |
| CNB2005100637627A Expired - Fee Related CN100422598C (en) | 2004-03-22 | 2005-03-22 | Transmission case for lube return and method |
| CNB2005100560428A Active CN100521369C (en) | 2004-03-22 | 2005-03-22 | Wiring connection module for hybrid electro-mechanical drive device |
| CN2005100637650A Expired - Fee Related CN1734132B (en) | 2004-03-22 | 2005-03-22 | Electro-mechanical transmission case and method for assembling electro-mechanical transmission case |
Country Status (1)
| Country | Link |
|---|---|
| CN (21) | CN100439760C (en) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104812604A (en) * | 2012-11-27 | 2015-07-29 | 丰田自动车株式会社 | Hybrid vehicle control device |
| CN104812604B (en) * | 2012-11-27 | 2017-12-19 | 丰田自动车株式会社 | The control device of motor vehicle driven by mixed power |
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