US20050026736A1 - Two-speed gearbox with integrated differential - Google Patents
Two-speed gearbox with integrated differential Download PDFInfo
- Publication number
- US20050026736A1 US20050026736A1 US10/630,417 US63041703A US2005026736A1 US 20050026736 A1 US20050026736 A1 US 20050026736A1 US 63041703 A US63041703 A US 63041703A US 2005026736 A1 US2005026736 A1 US 2005026736A1
- Authority
- US
- United States
- Prior art keywords
- differential
- clutch
- side gear
- gearbox assembly
- recited
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- F16H3/46—Gearings having only two central gears, connected by orbital gears
- F16H3/48—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears
- F16H3/50—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital conical gears
-
- 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
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/22—Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
Definitions
- the present invention relates to a two-speed gearbox, and more particularly to a two-speed gearbox having a locking differential for a heavy hybrid electric vehicle.
- Hybrid electric vehicle typically utilize motor driven axles which are often of a multi-axle configuration in military and specialty vehicles systems.
- the electric motors are typically sized to meet both torque and speed requirements which may not be the most effective for the operational requirements of such vehicles. Relatively large electric motors are often utilized to meet the torque requirements which may result in an oversized motor for most operational conditions. Moreover, the relatively large electric motors may be difficult to package in a multi-axle configuration. A lightweight and compact reduction gearbox which allows the usage of relatively smaller electric motors is therefore desirable. Two speeds are particularly desirable for military and specialty vehicles to provide high torque in off road conditions and high speed for movement over roads.
- a full time biasing differential may be undesirable in such vehicle since a primary motivation for transition to hybrid electric driven vehicles is improved fuel economy which provides increased range and reduced logistic footprint.
- the gearbox assembly includes a housing which contains a differential gear set and a two-speed reduction gear set.
- a differential spider drives differential pinion gears which are nested between outer pinion gears.
- a first and a second clutch that can be engaged “on the fly” achieve the two-speed functionality of the gearbox assembly.
- the first clutch is mounted between a case and the housing to selectively lock an input side gear to the case.
- the second clutch is mounted within the housing to selectively lock an opposite side gear to the housing.
- the input to the gearbox assembly is through the input side gear.
- a piston collapses the first clutch to lock the input side gear to the case.
- the case is assembled about a differential spider and therefore rotates the differential spider at the same speed as the case and the input side gear to achieve a 1:1 ratio.
- Engaging the differential pinion gears are the differential axle side gear which drive the axle shaft. Because the differential pinion gears are free to rotate around the differential spider, the differential axle side gear are free to rotate at different speeds creating a differential effect.
- the second clutch locks the opposite side gear to the housing.
- the first and second outer pinion gear roll around the opposite side gear rotating the differential spider at half the speed of the input side gear to achieve the second reduction ratio.
- Another gearbox assembly includes an on-demand locking differential.
- the locking differential clutch is located between differential axle side gears to selectively lock the differential axle side gears and thereby lock the axle shafts together.
- the present invention therefore provides a lightweight and compact two-speed reduction gearbox and on-demand biasing differential which may be utilized with a relatively smaller electric motor for incorporation into a multi-axle military and specialty vehicle system.
- FIG. 1 is a general perspective view an exemplary multi-axle vehicle embodiment for use with the present invention
- FIG. 2 is a block diagram of an axle assembly of the present invention
- FIG. 3 is a schematic sectional view of a two-speed gearbox
- FIG. 4 is a planar view of a differential spider for use in the gear box of FIG. 3 ;
- FIG. 5 is a schematic sectional view of another two-speed gearbox with an on-demand locking differential.
- FIG. 1 illustrates a schematic partial phantom view of a multi-axle vehicle 10 having a body 12 supported upon a frame 14 .
- the frame 14 preferably includes a pair of main longitudinal members 16 . It should be understood that although a particular vehicle arrangement is disclosed in the illustrated embodiment, other vehicles will benefit from the present invention.
- a multiple of axle assemblies 20 each includes an axle 22 driven by one or more electric motors 24 .
- Each axle assembly 20 defines an axis of rotation A substantially transverse the longitudinal members 16 to drive one or more wheels 26 .
- the electric motors 24 are driven by a prime mover 28 which is preferably a hybrid electric drive which powers each of the axle assemblies 20 by powering the electric motors 24 . It should be understood, however, that other prime movers such as diesel engines, gas turbines among others will also benefit from the present invention.
- the electric motors 24 drive a gearbox assembly 30 which drives the wheels 26 through a first axle shaft 32 a and a second axle shaft 32 b located along axis D.
- the electric motors 24 drive the gearbox assembly 30 through an input side gear 34 (illustrated schematically) which is coaxial with axis D.
- Each wheel 26 is preferably supported by an independent suspension (illustrated schematically at 36 ).
- the independent suspensions 36 may be mounted directly to the gearbox assembly 30 .
- Each wheel 26 and supporting suspension 36 moves independently relative to the electric motors 24 , gearbox assembly 30 which are mounted to the vehicle frame 14 ( FIG. 1 ). It should be understood that other suspension systems such as a rigid tubular or box axle which contains the gearbox assembly will also benefit from the present invention.
- the gearbox assembly 30 is preferably a two-speed reduction gear set 38 that includes a differential gear set 40 substantially contained within the two-speed reduction gear set 38 . That is, differential gear set 40 is nested within the two-speed reduction gear set 38 .
- a relatively lightweight and compact gearbox assembly 30 is thereby provided which will benefit from an electric motor of reduced size.
- the gearbox assembly 30 is schematically illustrated.
- the gearbox includes a housing 42 which contains the differential gear set 40 and the two-speed reduction gear set 38 .
- the housing 42 receives the first and second axle shaft 32 a , 32 b along axis D.
- the input side gear 34 a is coaxial with axis D and is driven by the electric motors 24 ( FIG. 2 ).
- a differential spider 44 is mounted to a case 46 .
- the case 46 is contained within the housing 42 and rotates about axis D upon bearings 47 .
- the spider 44 is mounted generally transverse to axis D.
- a multiple of outer pinion gear 48 a , 48 b , 48 c , 48 d are mounted for rotation about the differential spider 44 ( FIG. 4 ).
- a multiple of inner differential pinion gear 52 a , 52 b , 52 c , 52 d are mounted for rotation about the differential spider 44 independent of the outer pinion gears 48 a - 48 d . That is, the inner differential pinion gears 52 a - 52 d and the outer pinion gears 48 a - 48 d are mounted for independent rotation on the legs of the differential spider 44 .
- the spider includes multiple legs ( FIG. 4 ), each of which includes one outer pinion gear 48 and one inner differential pinion gear 52 ( FIG. 4 ) although only two legs are illustrated in the sectional view of FIG. 3 .
- the differential pinion gears 52 a - 52 d are nested between the outer pinion gears 48 a - 48 d.
- the input side gear 34 a is engaged with the outer pinion gears 48 a - 48 d .
- An opposite side gear 34 b opposite the input side gear 34 a is likewise engaged with the outer pinion gears 48 a - 48 d . It should be understood that although the input side gear 34 a is coaxial with axle shaft 32 a and the opposite side gear 34 is coaxial with axle shaft 32 b in the illustrated embodiment, the opposite or other arrangements will also benefit from the present invention.
- a first differential axle side gear 56 a is mounted to the first axle shaft 32 a and a second differential axle side gear 56 b is mounted to the second axle shaft 32 b .
- the first and second differential axle side gears 56 a , 56 b engage the inner differential pinion gears 52 a - 52 d.
- the first clutch 58 a is mounted between the case 46 and the housing 32 and is actuated by a first piston 60 a to selectively lock the input side gear 34 a to the case 46 .
- the second clutch 58 b is mounted within the housing 32 and is actuated by a second piston 60 b to selectively lock the opposite side gear 34 b to the housing 32 .
- the locking effect can achieved by a dog clutch, sliding collar, amongst others.
- the pistons 60 a , 60 b are actuated by a pressurized fluid and/or spring in response to a controller 62 (illustrated schematically).
- the input to the gearbox assembly 30 is through the input side gear 34 a .
- the piston 60 a is actuated by controller 32 and the piston 60 b is not energized.
- the piston 60 a collapses the clutch pack 58 a to lock the input side gear 34 a to the case 46 .
- the case 46 is assembled about the differential spider 44 and therefore rotates the differential spider 44 at the same speed as the case 46 and the input side gear 34 a to achieve a 1:1 ratio.
- the differential spider 44 drives the differential pinion gears 52 a , 52 b which are nested between the first and second outer pinion gear 48 a , 48 b.
- Engaging the differential pinion gears 52 a , 52 b are the differential axle side gear 56 a , 56 b which drive the axle shaft 32 a , 32 b . Because the differential pinion gears 52 a , 52 b are free to rotate around the differential spider 44 , the differential axle side gear 56 a , 56 b are free to rotate at different speeds creating a differential effect.
- the piston 60 b is actuated by controller 32 and the piston 60 a is not energized.
- the piston 60 b collapses the clutch pack 58 b to lock the opposite side gear 34 b to the housing 42 .
- the first and second outer pinion gear 48 a , 48 b roll around the opposite side gear 34 b rotating the differential spider 44 at half the speed of the input side gear 34 a and achieving the 2:1 reduction.
- the differential spider 44 drives the differential pinion gears 52 a , 52 b which rotate the differential axle side gears 56 a , 56 b and drive the axle shaft 32 a , 32 b.
- the gearbox assembly 30 can be biased toward a single reduction ratio such that that the selected reduction ratio is the usual un-powered ratio provided by the gearbox assembly 30 . That is, the gearbox assembly 30 always operated in a single selected reduction ration unless power is applied to overcome the bias and actuate the other reduction ratio.
- a biasing member illustrated schematically at 55 ) such as a spring or the like biases one piston 60 a , 60 b . Actuation of the one piston 60 a , 60 b overcomes the biasing member 55 and actuation of the opposite piston 60 b , 60 a operates as described above to provide the second reduction ratio.
- Such an arrangement is particularly beneficial when one reduction will be know to be utilized more often than the other.
- the gearbox assembly 30 generally includes the components of gearbox assembly 30 with a locking differential clutch 64 which is controlled by controller 62 .
- the locking differential clutch 64 is located between the differential axle side gears 56 a , 56 b to selectively lock the differential axle side gears 56 a , 56 b together and thereby lock the axle shaft 32 a , 32 b .
- the locking differential clutch 64 is collapsed by sealed pistons 66 (illustrated schematically) located between a split differential spider 44 ′. Pressurized fluid is communicated through apertures 68 located through the length of the legs of the split differential spider 44 ′.
- the on-demand functionality is achieved by control logic within the controller 62 which applies pressure to the sealed pistons 66 whenever wheel slip is detected.
Abstract
Description
- The present invention relates to a two-speed gearbox, and more particularly to a two-speed gearbox having a locking differential for a heavy hybrid electric vehicle.
- There is an increasing demand for the use of hybrid electric driven and hybrid electric assisted vehicles. Hybrid electric vehicle typically utilize motor driven axles which are often of a multi-axle configuration in military and specialty vehicles systems.
- The electric motors are typically sized to meet both torque and speed requirements which may not be the most effective for the operational requirements of such vehicles. Relatively large electric motors are often utilized to meet the torque requirements which may result in an oversized motor for most operational conditions. Moreover, the relatively large electric motors may be difficult to package in a multi-axle configuration. A lightweight and compact reduction gearbox which allows the usage of relatively smaller electric motors is therefore desirable. Two speeds are particularly desirable for military and specialty vehicles to provide high torque in off road conditions and high speed for movement over roads.
- Military and specialty vehicles systems also typically require the added traction provided by a biasing or locking differential. A full time biasing differential may be undesirable in such vehicle since a primary motivation for transition to hybrid electric driven vehicles is improved fuel economy which provides increased range and reduced logistic footprint.
- Accordingly, it is desirable to provide a lightweight and compact two-speed reduction gearbox and on-demand biasing differential which may be utilized with a relatively smaller electric motor for incorporation into a multi-axle military and specialty vehicle system.
- The gearbox assembly according to the present invention includes a housing which contains a differential gear set and a two-speed reduction gear set. A differential spider drives differential pinion gears which are nested between outer pinion gears. A first and a second clutch that can be engaged “on the fly” achieve the two-speed functionality of the gearbox assembly. The first clutch is mounted between a case and the housing to selectively lock an input side gear to the case. The second clutch is mounted within the housing to selectively lock an opposite side gear to the housing.
- In operation, the input to the gearbox assembly is through the input side gear. To provide a first reduction ratio a piston collapses the first clutch to lock the input side gear to the case. The case is assembled about a differential spider and therefore rotates the differential spider at the same speed as the case and the input side gear to achieve a 1:1 ratio. Engaging the differential pinion gears are the differential axle side gear which drive the axle shaft. Because the differential pinion gears are free to rotate around the differential spider, the differential axle side gear are free to rotate at different speeds creating a differential effect.
- To provide a second reduction ratio the second clutch locks the opposite side gear to the housing. With the opposite side gear grounded, the first and second outer pinion gear roll around the opposite side gear rotating the differential spider at half the speed of the input side gear to achieve the second reduction ratio.
- Another gearbox assembly includes an on-demand locking differential. The locking differential clutch is located between differential axle side gears to selectively lock the differential axle side gears and thereby lock the axle shafts together.
- The present invention therefore provides a lightweight and compact two-speed reduction gearbox and on-demand biasing differential which may be utilized with a relatively smaller electric motor for incorporation into a multi-axle military and specialty vehicle system.
- The various features and advantages of this invention will become apparent to those skilled in the art from the following detailed description of the currently preferred embodiment. The drawings that accompany the detailed description can be briefly described as follows:
-
FIG. 1 is a general perspective view an exemplary multi-axle vehicle embodiment for use with the present invention; -
FIG. 2 is a block diagram of an axle assembly of the present invention; -
FIG. 3 is a schematic sectional view of a two-speed gearbox; -
FIG. 4 is a planar view of a differential spider for use in the gear box ofFIG. 3 ; and -
FIG. 5 is a schematic sectional view of another two-speed gearbox with an on-demand locking differential. -
FIG. 1 illustrates a schematic partial phantom view of amulti-axle vehicle 10 having abody 12 supported upon aframe 14. Theframe 14 preferably includes a pair of mainlongitudinal members 16. It should be understood that although a particular vehicle arrangement is disclosed in the illustrated embodiment, other vehicles will benefit from the present invention. - A multiple of
axle assemblies 20 each includes anaxle 22 driven by one or moreelectric motors 24. Eachaxle assembly 20 defines an axis of rotation A substantially transverse thelongitudinal members 16 to drive one ormore wheels 26. Theelectric motors 24 are driven by aprime mover 28 which is preferably a hybrid electric drive which powers each of the axle assemblies 20 by powering theelectric motors 24. It should be understood, however, that other prime movers such as diesel engines, gas turbines among others will also benefit from the present invention. - Referring to
FIG. 2 , theelectric motors 24 drive agearbox assembly 30 which drives thewheels 26 through afirst axle shaft 32 a and asecond axle shaft 32 b located along axis D. Preferably, theelectric motors 24 drive thegearbox assembly 30 through an input side gear 34 (illustrated schematically) which is coaxial with axis D. - Each
wheel 26 is preferably supported by an independent suspension (illustrated schematically at 36). Theindependent suspensions 36 may be mounted directly to thegearbox assembly 30. Eachwheel 26 and supportingsuspension 36 moves independently relative to theelectric motors 24,gearbox assembly 30 which are mounted to the vehicle frame 14 (FIG. 1 ). It should be understood that other suspension systems such as a rigid tubular or box axle which contains the gearbox assembly will also benefit from the present invention. - The
gearbox assembly 30 is preferably a two-speedreduction gear set 38 that includes a differential gear set 40 substantially contained within the two-speedreduction gear set 38. That is,differential gear set 40 is nested within the two-speedreduction gear set 38. A relatively lightweight andcompact gearbox assembly 30 is thereby provided which will benefit from an electric motor of reduced size. - Referring to
FIG. 3 , thegearbox assembly 30 is schematically illustrated. The gearbox includes ahousing 42 which contains thedifferential gear set 40 and the two-speedreduction gear set 38. Thehousing 42 receives the first andsecond axle shaft input side gear 34 a is coaxial with axis D and is driven by the electric motors 24 (FIG. 2 ). - A
differential spider 44 is mounted to acase 46. Thecase 46 is contained within thehousing 42 and rotates about axis D uponbearings 47. Thespider 44 is mounted generally transverse to axis D. A multiple ofouter pinion gear FIG. 4 ). A multiple of innerdifferential pinion gear differential spider 44 independent of the outer pinion gears 48 a-48 d. That is, the inner differential pinion gears 52 a-52 d and the outer pinion gears 48 a-48 d are mounted for independent rotation on the legs of thedifferential spider 44. As generally known the spider includes multiple legs (FIG. 4 ), each of which includes one outer pinion gear 48 and one inner differential pinion gear 52 (FIG. 4 ) although only two legs are illustrated in the sectional view ofFIG. 3 . Notably, the differential pinion gears 52 a-52 d are nested between the outer pinion gears 48 a-48 d. - The
input side gear 34 a is engaged with the outer pinion gears 48 a-48 d. Anopposite side gear 34 b opposite theinput side gear 34 a is likewise engaged with the outer pinion gears 48 a-48 d. It should be understood that although theinput side gear 34 a is coaxial withaxle shaft 32 a and theopposite side gear 34 is coaxial withaxle shaft 32 b in the illustrated embodiment, the opposite or other arrangements will also benefit from the present invention. - A first differential
axle side gear 56 a is mounted to thefirst axle shaft 32 a and a second differentialaxle side gear 56 b is mounted to thesecond axle shaft 32 b. The first and second differential axle side gears 56 a, 56 b engage the inner differential pinion gears 52 a-52 d. - A first and a second clutch 58 a, 58 b that can be engaged “on the fly” achieve the two-speed functionality of the
gearbox assembly 30. The first clutch 58 a is mounted between thecase 46 and the housing 32 and is actuated by afirst piston 60 a to selectively lock theinput side gear 34 a to thecase 46. The second clutch 58 b is mounted within the housing 32 and is actuated by asecond piston 60 b to selectively lock theopposite side gear 34 b to the housing 32. Alternatively, or additionally, the locking effect can achieved by a dog clutch, sliding collar, amongst others. Thepistons - It should be further understood that various bearing and seal locations are included within the gearbox. One of ordinary skill in the art, with the benefit of this disclosure, will consider the various bearing and seal locations to be an ordinary engineering problem such that intricate details thereof need not be fully discussed herein.
- In operation, the input to the
gearbox assembly 30 is through theinput side gear 34 a. To provide a first reduction ratio (1:1 ratio), thepiston 60 a is actuated by controller 32 and thepiston 60 b is not energized. Thepiston 60 a collapses theclutch pack 58 a to lock theinput side gear 34 a to thecase 46. Thecase 46 is assembled about thedifferential spider 44 and therefore rotates thedifferential spider 44 at the same speed as thecase 46 and theinput side gear 34 a to achieve a 1:1 ratio. Thedifferential spider 44 drives the differential pinion gears 52 a, 52 b which are nested between the first and secondouter pinion gear - Engaging the differential pinion gears 52 a, 52 b are the differential
axle side gear axle shaft differential spider 44, the differentialaxle side gear - To provide a second reduction ratio (2:1 shown, but other ratios are achieved by providing an angled spider as generally understood), the
piston 60 b is actuated by controller 32 and thepiston 60 a is not energized. Thepiston 60 b collapses theclutch pack 58 b to lock theopposite side gear 34 b to thehousing 42. With theopposite side gear 34 b grounded, the first and secondouter pinion gear opposite side gear 34 b rotating thedifferential spider 44 at half the speed of theinput side gear 34 a and achieving the 2:1 reduction. Thedifferential spider 44 drives the differential pinion gears 52 a, 52 b which rotate the differential axle side gears 56 a, 56 b and drive theaxle shaft - Alternatively, the
gearbox assembly 30 can be biased toward a single reduction ratio such that that the selected reduction ratio is the usual un-powered ratio provided by thegearbox assembly 30. That is, thegearbox assembly 30 always operated in a single selected reduction ration unless power is applied to overcome the bias and actuate the other reduction ratio. A biasing member (illustrated schematically at 55) such as a spring or the like biases onepiston piston member 55 and actuation of theopposite piston - Referring to
FIG. 5 , anothergearbox assembly 30′ which includes an on-demand locking differential is schematically illustrated. Thegearbox assembly 30 generally includes the components ofgearbox assembly 30 with a locking differential clutch 64 which is controlled bycontroller 62. The locking differential clutch 64 is located between the differential axle side gears 56 a, 56 b to selectively lock the differential axle side gears 56 a, 56 b together and thereby lock theaxle shaft differential spider 44′. Pressurized fluid is communicated throughapertures 68 located through the length of the legs of the splitdifferential spider 44′. The on-demand functionality is achieved by control logic within thecontroller 62 which applies pressure to the sealedpistons 66 whenever wheel slip is detected. - The foregoing description is exemplary rather than defined by the limitations within. Many modifications and variations of the present invention are possible in light of the above teachings. The preferred embodiments of this invention have been disclosed, however, one of ordinary skill in the art would recognize that certain modifications would come within the scope of this invention. It is, therefore, to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described. For that reason the following claims should be studied to determine the true scope and content of this invention.
Claims (19)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/630,417 US6843750B1 (en) | 2003-07-30 | 2003-07-30 | Two-speed gearbox with integrated differential |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/630,417 US6843750B1 (en) | 2003-07-30 | 2003-07-30 | Two-speed gearbox with integrated differential |
Publications (2)
Publication Number | Publication Date |
---|---|
US6843750B1 US6843750B1 (en) | 2005-01-18 |
US20050026736A1 true US20050026736A1 (en) | 2005-02-03 |
Family
ID=33565199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/630,417 Expired - Lifetime US6843750B1 (en) | 2003-07-30 | 2003-07-30 | Two-speed gearbox with integrated differential |
Country Status (1)
Country | Link |
---|---|
US (1) | US6843750B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111344179A (en) * | 2017-11-17 | 2020-06-26 | Gkn汽车有限公司 | Shifting transmission and electric drive having a shifting transmission |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6964311B2 (en) * | 2003-04-07 | 2005-11-15 | Tai-Her Yang | Repulsive differential driving double-acting type electrical machinery power system |
US7357203B2 (en) * | 2004-09-28 | 2008-04-15 | Oshkosh Truck Corporation | Self-contained axle module |
US8561735B2 (en) * | 2004-09-28 | 2013-10-22 | Oshkosh Corporation | Self-contained axle module |
US7448460B2 (en) * | 2004-09-28 | 2008-11-11 | Oshkosh Corporation | Power takeoff for an electric vehicle |
US7537536B2 (en) * | 2006-06-13 | 2009-05-26 | Hvolka Dusan J | Two speed gearbox |
WO2008016537A2 (en) | 2006-08-02 | 2008-02-07 | Magna Powertrain Usa, Inc. | Two-speed power take-off unit |
US20080164084A1 (en) * | 2007-01-05 | 2008-07-10 | Textron Inc. | Locking Differential For Electric Golf Cars And Utility Vehicles |
US20090247346A1 (en) * | 2008-03-25 | 2009-10-01 | Djh Engineering Center, Inc. | Two speed planetary electric shift gearbox |
US8104288B2 (en) * | 2008-09-25 | 2012-01-31 | Honeywell International Inc. | Effusion cooling techniques for combustors in engine assemblies |
US20100267508A1 (en) * | 2009-04-16 | 2010-10-21 | Djh Engineering Center, Inc. | Direct drive electric shift two speed planetary gearbox |
US9453570B2 (en) * | 2009-12-07 | 2016-09-27 | Arvinmeritor Technology, Llc | Differential lock with assisted return |
WO2011134503A1 (en) * | 2010-04-28 | 2011-11-03 | L-3 Communications Magnet-Motor Gmbh | Drive unit for aircraft running gear |
DE102014101713A1 (en) | 2014-02-12 | 2015-08-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Electric portal axle for the electric drive of a motor vehicle |
EP3390128B1 (en) | 2015-12-17 | 2023-09-27 | Allison Transmission, Inc. | Axle assembly for a vehicle |
US10882389B2 (en) | 2016-05-06 | 2021-01-05 | Allison Transmission, Inc. | Axle assembly with electric motor |
USD821930S1 (en) | 2016-06-06 | 2018-07-03 | Axletech International Ip Holdings, Llc | Gearbox assembly for an axle |
US11820217B2 (en) * | 2018-02-19 | 2023-11-21 | Allison Transmission, Inc. | Axle assembly for frame rail vehicles |
WO2019161395A1 (en) | 2018-02-19 | 2019-08-22 | Axletech International Ip Holdings, Llc | Axle assembly for frame rail vehicles |
USD927578S1 (en) | 2018-09-27 | 2021-08-10 | Allison Transmission, Inc. | Axle assembly |
Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1537802A (en) * | 1923-11-01 | 1925-05-12 | Dennis P Collins | Transmission mechanism |
US2997898A (en) * | 1958-03-26 | 1961-08-29 | Automative Products Company Lt | Automatic transmission of power |
US3511112A (en) * | 1968-04-11 | 1970-05-12 | Automotive Prod Co Ltd | Power transmission mechanism providing changes of gear ratio |
US4588040A (en) * | 1983-12-22 | 1986-05-13 | Albright Jr Harold D | Hybrid power system for driving a motor vehicle |
US5100368A (en) * | 1991-03-12 | 1992-03-31 | Shi-Hai Chien | Speed variable transmission system |
US5201691A (en) * | 1990-11-07 | 1993-04-13 | Doyle Transmissions Limited | Variable speed transmission assembly |
US5558589A (en) * | 1995-07-20 | 1996-09-24 | General Motors Corporation | Two-mode, compound-split, electro-mechanical vehicular transmission |
US5827148A (en) * | 1996-01-23 | 1998-10-27 | Seiko Epson Corporation | Variable speed drive unit for electric vehicle and variable speed driving method |
US5951424A (en) * | 1998-06-08 | 1999-09-14 | Briceland & Associates Limited | Continuously variable power transmission |
US6041877A (en) * | 1995-09-29 | 2000-03-28 | Fuji Jukogyo Kabushiki Kaisha | Drive unit for hybrid vehicle |
US6053833A (en) * | 1998-02-19 | 2000-04-25 | Hitachi, Ltd. | Transmission, and vehicle and bicycle using the same |
US6083139A (en) * | 1998-07-03 | 2000-07-04 | Nissan Motor Co., Ltd. | Hybrid drive system for vehicle with clutch control |
US6083138A (en) * | 1998-03-20 | 2000-07-04 | Nissan Motor Co., Ltd. | Hybrid drive control system for vehicle |
US6090005A (en) * | 1999-07-26 | 2000-07-18 | General Motors Corporation | Two-mode, compound-split, vehicular transmission having both enhanced speed and enhanced tractive power |
US6098733A (en) * | 1995-10-13 | 2000-08-08 | Toyota Jidosha Kabushiki Kaisha | Hybrid drive system for motor vehicle |
US6110066A (en) * | 1998-02-05 | 2000-08-29 | Southwest Research Institute | Parallel hybrid drivetrain |
US6170587B1 (en) * | 1997-04-18 | 2001-01-09 | Transport Energy Systems Pty Ltd | Hybrid propulsion system for road vehicles |
US6358176B1 (en) * | 1998-11-03 | 2002-03-19 | Renk Aktiengesellschaft | Electromechanical drive for track-laying vehicles |
US6371878B1 (en) * | 2000-08-22 | 2002-04-16 | New Venture Gear, Inc. | Electric continuously variable transmission |
US6378638B1 (en) * | 2001-03-14 | 2002-04-30 | New Venture Gear, Inc. | Drive axle for hybrid vehicle |
US6398685B1 (en) * | 1998-01-16 | 2002-06-04 | Oskar Wachauer | Drive mechanism for a vehicle, especially a multilane electromobile |
US6401850B1 (en) * | 2001-03-14 | 2002-06-11 | New Venture Gear, Inc. | Electric drive axle for hybrid vehicle |
-
2003
- 2003-07-30 US US10/630,417 patent/US6843750B1/en not_active Expired - Lifetime
Patent Citations (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1537802A (en) * | 1923-11-01 | 1925-05-12 | Dennis P Collins | Transmission mechanism |
US2997898A (en) * | 1958-03-26 | 1961-08-29 | Automative Products Company Lt | Automatic transmission of power |
US3511112A (en) * | 1968-04-11 | 1970-05-12 | Automotive Prod Co Ltd | Power transmission mechanism providing changes of gear ratio |
US4588040A (en) * | 1983-12-22 | 1986-05-13 | Albright Jr Harold D | Hybrid power system for driving a motor vehicle |
US5201691A (en) * | 1990-11-07 | 1993-04-13 | Doyle Transmissions Limited | Variable speed transmission assembly |
US5100368A (en) * | 1991-03-12 | 1992-03-31 | Shi-Hai Chien | Speed variable transmission system |
US5558589A (en) * | 1995-07-20 | 1996-09-24 | General Motors Corporation | Two-mode, compound-split, electro-mechanical vehicular transmission |
US6041877A (en) * | 1995-09-29 | 2000-03-28 | Fuji Jukogyo Kabushiki Kaisha | Drive unit for hybrid vehicle |
US6098733A (en) * | 1995-10-13 | 2000-08-08 | Toyota Jidosha Kabushiki Kaisha | Hybrid drive system for motor vehicle |
US5827148A (en) * | 1996-01-23 | 1998-10-27 | Seiko Epson Corporation | Variable speed drive unit for electric vehicle and variable speed driving method |
US6170587B1 (en) * | 1997-04-18 | 2001-01-09 | Transport Energy Systems Pty Ltd | Hybrid propulsion system for road vehicles |
US6398685B1 (en) * | 1998-01-16 | 2002-06-04 | Oskar Wachauer | Drive mechanism for a vehicle, especially a multilane electromobile |
US6110066A (en) * | 1998-02-05 | 2000-08-29 | Southwest Research Institute | Parallel hybrid drivetrain |
US6053833A (en) * | 1998-02-19 | 2000-04-25 | Hitachi, Ltd. | Transmission, and vehicle and bicycle using the same |
US6083138A (en) * | 1998-03-20 | 2000-07-04 | Nissan Motor Co., Ltd. | Hybrid drive control system for vehicle |
US5951424A (en) * | 1998-06-08 | 1999-09-14 | Briceland & Associates Limited | Continuously variable power transmission |
US6083139A (en) * | 1998-07-03 | 2000-07-04 | Nissan Motor Co., Ltd. | Hybrid drive system for vehicle with clutch control |
US6358176B1 (en) * | 1998-11-03 | 2002-03-19 | Renk Aktiengesellschaft | Electromechanical drive for track-laying vehicles |
US6090005A (en) * | 1999-07-26 | 2000-07-18 | General Motors Corporation | Two-mode, compound-split, vehicular transmission having both enhanced speed and enhanced tractive power |
US6371878B1 (en) * | 2000-08-22 | 2002-04-16 | New Venture Gear, Inc. | Electric continuously variable transmission |
US6378638B1 (en) * | 2001-03-14 | 2002-04-30 | New Venture Gear, Inc. | Drive axle for hybrid vehicle |
US6401850B1 (en) * | 2001-03-14 | 2002-06-11 | New Venture Gear, Inc. | Electric drive axle for hybrid vehicle |
US6481519B1 (en) * | 2001-03-14 | 2002-11-19 | New Venture Gear, Inc. | Electric drive axle for hybrid vehicle |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111344179A (en) * | 2017-11-17 | 2020-06-26 | Gkn汽车有限公司 | Shifting transmission and electric drive having a shifting transmission |
Also Published As
Publication number | Publication date |
---|---|
US6843750B1 (en) | 2005-01-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6843750B1 (en) | Two-speed gearbox with integrated differential | |
US7316627B2 (en) | Integrated two-speed motor | |
US5919109A (en) | Drive axle with planetary gear | |
US5513719A (en) | Hybrid vehicle | |
US6978853B2 (en) | Axle assembly with parallel mounted electric motors | |
US11498410B2 (en) | Powered axle for dual wheel work vehicle | |
US6969333B2 (en) | Motor power train and method of assembling the same | |
US11878577B2 (en) | Electric drive axle with multi-speed gearbox | |
US20060052207A1 (en) | Differential unit | |
JPH05169991A (en) | Drive device for electric vehicle | |
JP2008508482A (en) | Variable torque distributor | |
JP4068697B2 (en) | Driving axle | |
JP4580877B2 (en) | Differential device | |
JPH05116541A (en) | Drive unit for electric car | |
JP5039647B2 (en) | Power transmission device | |
JP3857584B2 (en) | Differential device | |
JP7404530B2 (en) | Transmission gearbox for truck electric axle | |
JP4353606B2 (en) | Starting clutch | |
CN109442017B (en) | Rear axle transmission system of multifunctional cleaning vehicle | |
CN211166251U (en) | Automobile duplex drive axle capable of realizing lifting of intermediate axle | |
CN210971080U (en) | Bogie for railway vehicle and railway vehicle with same | |
EP4144554A1 (en) | Traction assembly for a vehicle | |
EP4144552A1 (en) | Traction assembly for a vehicle | |
JP2581512Y2 (en) | Differential device | |
JP4516655B2 (en) | Starting clutch |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ARVINMERITOR TECHNOLOGY, LLC, MICHIGAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BENNETT, JOHN L.;REEL/FRAME:014352/0200 Effective date: 20030728 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
AS | Assignment |
Owner name: JPMORGAN CHASE BANK, NATIONAL ASSOCIATION, FOR ITS Free format text: SECURITY AGREEMENT;ASSIGNOR:ARVINMERITOR TECHNOLOGY, LLC;REEL/FRAME:018524/0669 Effective date: 20060823 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FPAY | Fee payment |
Year of fee payment: 12 |
|
AS | Assignment |
Owner name: AXLETECH INTERNATIONAL IP HOLDINGS, LLC, MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:061521/0550 Effective date: 20220803 Owner name: MERITOR TECHNOLOGY, LLC, MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:061521/0550 Effective date: 20220803 Owner name: MOTOR HEAVY VEHICLE SYSTEMS, LLC, MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:061521/0550 Effective date: 20220803 Owner name: ARVINMERITOR OE, LLC, MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:061521/0550 Effective date: 20220803 Owner name: MERITOR HEAVY VEHICLE SYSTEMS, LLC, MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:061521/0550 Effective date: 20220803 Owner name: ARVINMERITOR TECHNOLOGY, LLC, MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:061521/0550 Effective date: 20220803 Owner name: MAREMOUNT CORPORATION, MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:061521/0550 Effective date: 20220803 Owner name: EUCLID INDUSTRIES, LLC, MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:061521/0550 Effective date: 20220803 Owner name: GABRIEL RIDE CONTROL PRODUCTS, INC., MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:061521/0550 Effective date: 20220803 Owner name: ARVIN TECHNOLOGIES, INC., MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:061521/0550 Effective date: 20220803 Owner name: MERITOR TRANSMISSION CORPORATION, MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:061521/0550 Effective date: 20220803 Owner name: ARVINMERITOR, INC., MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:061521/0550 Effective date: 20220803 |