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All-wheel drive with active dry disconnect system

A technology of power separation and transmission system, which is applied in the field of transmission system

Active Publication Date: 2012-02-01
MAGNA POWERTRAIN USA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there may be opportunities to provide more energy-efficient vehicle drivetrains

Method used

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  • All-wheel drive with active dry disconnect system
  • All-wheel drive with active dry disconnect system
  • All-wheel drive with active dry disconnect system

Examples

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Embodiment Construction

[0027] The following description is merely exemplary in nature and is not intended to limit the disclosure, application, or use. It should be understood that throughout the drawings, corresponding reference numerals indicate similar or corresponding parts and features.

[0028] In general, the present disclosure relates to a coupling and hypoid gear release system for a driveline of a motor vehicle. The power take-off unit may be equipped with a positive coupling or dog clutch / synchronizer, allowing the power source to be disconnected from a portion of the driveline and reconnected by synchronization of said driveline. Additionally, another active coupling or dog clutch may be provided to decouple a portion of the driveline from the wheels. The hypoid gearing of a vehicle driveline can be decoupled from the power drive source to reduce churning losses and other mechanical inefficiencies.

[0029] Specifically refer to the attached figure 1 , shows a drive train 10 of a four...

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Abstract

A vehicle drive train for transferring torque to first and second sets of wheels includes a first driveline adapted to transfer torque to the first set of wheels and a first power disconnection device. A second driveline is adapted to transfer torque to the second set of wheels and includes a second power disconnection device. A hypoid gearset is positioned within one of the first driveline and the second driveline in a power path between the first and second power disconnection devices. The hypoid gearset is selectively disconnected from being driven by the first driveline and the second driveline when the first and second power disconnection devices are operated in a disconnected, non-torque transferring, mode. At least one of the first and second power disconnection devices includes an active dry friction clutch.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 61 / 158,504, filed March 9, 2009. The entire disclosure content of the above application is incorporated herein by reference. technical field [0003] The present disclosure relates to a driveline for a motor vehicle having a system for disengaging a hypoid ring gear from rotating at driveline speed. Specifically, a power transfer device such as a power take-off unit or transfer case includes a coupling for disabling torque transfer from the power source to the auxiliary driveline, while another decoupler selectively interrupts torque transfer from the wheels to the auxiliary driveline Power flow through a hypoid ring gear on a drive train. Background technique [0004] A typical power take-off unit transmits power from a transaxle, which receives torque from the vehicle's power source. The power take-off unit transmits power to the drive shaft thr...

Claims

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Application Information

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IPC IPC(8): B60K17/04F16H57/02B60K17/02
CPCY02T10/52B60K17/35F16H57/037Y02T10/40B60K17/02B60K17/04B60K17/34B60K17/346F16H57/02F16H57/0409F16H48/06F16H48/22
Inventor 托德·埃科宁约翰内斯·克亨贝格尔
Owner MAGNA POWERTRAIN USA
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