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公开(公告)号：US11047463B2
公开(公告)日：2021-06-29
申请号：US16340438
申请日：2017-10-12
发明人： Bradley R. Archer , Jeremy M. Frenznick , Nicholas W. Laforce , Paul V. Mackalski , Matthew T. Malanga , Jared T. Reichert
摘要： An axle system for a vehicle having an input shaft and an input helical gear. Circumferentially extending from at least a portion of an outer surface of an intermediate portion of the input shaft is an increased diameter portion. A bearing journal surface is disposed directly adjacent to a first end portion of the increase diameter portion and a tapered roller bearing journal surface is disposed directly adjacent to a second end portion of the increased diameter portion of the input shaft. Disposed outboard from the bearing journal surface is a bearing and a tapered roller bearing is disposed outboard from the tapered roller bearing journal surface of the input shaft. At least a portion of the tapered roller bearing is disposed with a tapered roller bearing receiving portion circumferentially extending along at least a portion of an inner surface of an input helical side gear.
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公开(公告)号：US12017634B2
公开(公告)日：2024-06-25
申请号：US18310424
申请日：2023-05-01
CPC分类号： B60W10/08 , B60K17/3515 , B60W10/06 , B60W2510/087 , B60W2710/0666 , B60W2710/083
摘要： Methods and systems are provided for controlling a multi-axle assembly in a vehicle. The multi-axle assembly may be operated according to a requested mode, where the mode includes providing torque at one, two, or no axles of the multi-axle assembly, and the requested mode may be selected based on vehicle speed. In this way, operation of the multi-axle assembly may be adjusted according to a fuel efficiency of the vehicle while the vehicle is in motion.
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公开(公告)号：US11878578B2
公开(公告)日：2024-01-23
申请号：US17450436
申请日：2021-10-08
CPC分类号： B60K1/02 , B60K7/0007 , B60K17/043 , B60K2001/001 , B60K2007/0061 , B60Y2200/91 , B60Y2410/10 , B62D21/11
摘要： A cradle assembly for housing and supporting a motor and a gearbox of an electric axle assembly. The cradle assembly has generally an “open air” design which provides a space for a motor and/or gearbox to be positioned within a pre-assembled cradle assembly and allows for easy access to the motor and gearbox for maintenance. The cradle assembly includes two end caps, a plurality of tube portions connecting the end caps and a plurality of motor mounts for supporting the motor and gearbox.
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公开(公告)号：US11691612B2
公开(公告)日：2023-07-04
申请号：US17175450
申请日：2021-02-12
CPC分类号： B60W10/08 , B60K17/3515 , B60W10/06 , B60W2510/087 , B60W2710/0666 , B60W2710/083
摘要： Methods and systems are provided for controlling a multi-axle assembly in a vehicle. The multi-axle assembly may be operated according to a requested mode, where the mode includes providing torque at one, two, or no axles of the multi-axle assembly, and the requested mode may be selected based on vehicle speed. In this way, operation of the multi-axle assembly may be adjusted according to a fuel efficiency of the vehicle while the vehicle is in motion.
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公开(公告)号：US10926633B2
公开(公告)日：2021-02-23
申请号：US16202186
申请日：2018-11-28
摘要： Methods of controlling a tandem axle assembly in a vehicle, the tandem axle assembly including an inter-axle differential (IAD), one or more side gears, and a front tandem axle assembly having a pair of front tandem axle half shafts selectively connected to a pair of front tandem axle wheel hub assemblies. When a determined speed of the vehicle is greater or equal to a predetermined speed, the IAD may be locked, the tandem axle wheel hub assemblies may be disconnected from their respective tandem axle shafts, and/or the IAD may be moved out of engagement with the one or more side gears. When a determined speed of the vehicle is less than a predetermined speed, the IAD may be unlocked, the tandem axle wheel hub assemblies may be connected to their respective tandem axle shafts, and/or the IAD may be engaged with the one or more side gears.
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公开(公告)号：US11667193B2
公开(公告)日：2023-06-06
申请号：US17157852
申请日：2021-01-25
CPC分类号： B60K23/0808 , B60B35/14 , B60K17/36 , B60K23/04 , F16D48/06 , F16H48/05 , F16H48/30 , B60K2023/046 , B60K2023/085 , B60K2023/0841 , F16D2500/3108
摘要： Methods of controlling a tandem axle assembly in a vehicle, the tandem axle assembly including an inter-axle differential (IAD), one or more side gears, and a front tandem axle assembly having a pair of front tandem axle half shafts selectively connected to a pair of front tandem axle wheel hub assemblies. When a determined speed of the vehicle is greater or equal to a predetermined speed, the IAD may be locked, the tandem axle wheel hub assemblies may be disconnected from their respective tandem axle shafts, and/or the IAD may be moved out of engagement with the one or more side gears. When a determined speed of the vehicle is less than a predetermined speed, the IAD may be unlocked, the tandem axle wheel hub assemblies may be connected to their respective tandem axle shafts, and/or the IAD may be engaged with the one or more side gears.
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公开(公告)号：US11598280B2
公开(公告)日：2023-03-07
申请号：US16855218
申请日：2020-04-22
摘要： Methods and systems for estimating an amount of torque that is transferred via a differential ring gear assembly are described. In one example, axial displacement of the differential ring gear assembly is determined and converted into a torque estimate. The torque estimate may be used to verify other powertrain torque estimates or for closed loop torque control.
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公开(公告)号：US09803737B2
公开(公告)日：2017-10-31
申请号：US14929700
申请日：2015-11-02
IPC分类号： F16H48/10 , F16H48/11 , B60K17/16 , B60K17/36 , F16H48/40 , B60K17/346 , F16H48/285
CPC分类号： F16H48/10 , B60K17/16 , B60K17/20 , B60K17/346 , B60K17/36 , B60Y2400/73 , F16H48/285 , F16H48/40
摘要： The present invention provides an improved inter-axle differential assembly to limit axle tire slip by limiting the excessive inter-axle differentiation between front and rear axles in a tandem axle set. The present invention provides an inter-axle differential assembly comprising a differential case including a cylindrical housing, an annular axial end surface connected to the cylindrical housing, an end cover plate wherein the annular axial end surface and the end cover plate include openings for receiving coaxial input and output shafts, a hollow chamber defined by the cylindrical housing, the annular axial end surface, and the end cover plate which houses differential gear assembly, and an unitary gear set extending continuously in the radial direction from the cylindrical housing.
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公开(公告)号：US11214136B2
公开(公告)日：2022-01-04
申请号：US16633776
申请日：2018-07-27
摘要： A cradle assembly for housing and supporting a motor and a gearbox of an electric axle assembly. The cradle assembly has generally an “open air” design which provides a space for a motor and/or gearbox to be positioned within a pre-assembled cradle assembly and allows for easy access to the motor and gearbox for maintenance. The cradle assembly includes two end caps, a plurality of tube portions connecting the end caps and a plurality of motor mounts for supporting the motor and gearbox.
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公开(公告)号：US20200164743A1
公开(公告)日：2020-05-28
申请号：US16202186
申请日：2018-11-28
摘要： Methods of controlling a tandem axle assembly in a vehicle, the tandem axle assembly including an inter-axle differential (IAD), one or more side gears, and a front tandem axle assembly having a pair of front tandem axle half shafts selectively connected to a pair of front tandem axle wheel hub assemblies. When a determined speed of the vehicle is greater or equal to a predetermined speed, the IAD may be locked, the tandem axle wheel hub assemblies may be disconnected from their respective tandem axle shafts, and/or the IAD may be moved out of engagement with the one or more side gears. When a determined speed of the vehicle is less than a predetermined speed, the IAD may be unlocked, the tandem axle wheel hub assemblies may be connected to their respective tandem axle shafts, and/or the IAD may be engaged with the one or more side gears.
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