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Awd vehicle with disconnect system

A technology of vehicle and transmission system, applied in the field of transmission system

Inactive Publication Date: 2014-07-30
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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  • Awd vehicle with disconnect system
  • Awd vehicle with disconnect system
  • Awd vehicle with disconnect system

Examples

Experimental program
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Embodiment Construction

[0017] 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.

[0018] 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 synchronizer, whereby the power source is decoupled from a part of the driveline and reconnected by synchronization of the driveline. Dog or roller clutches may be provided to decouple a portion of the driveline from one or more of the wheels. Additionally, friction couplings may be placed in-line in the driveline to synchronize speed between front and rear driveline components when reconnection of power is required. Hypoid gearing in vehicle drivetrains can be decoupled from the power drive source to reduce churning losses and other ...

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PUM

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Abstract

A vehicle driveline for transmitting torque to first and second sets of wheels comprising: a first driveline adapted to transmit torque to a first set of wheels and a synchronizing clutch; a second driveline , the second transmission system is adapted to transmit torque to the second set of wheels, and includes a power separation device and a friction clutch; a hypoid gear set, the hypoid gear set is arranged in the second transmission system, located in the synchronous clutch In the power path between the power disconnect device. The friction clutch and power disconnect are located on opposite sides of the hypoid gear set. The hypoid gear set is selectively disengaged so as not to be driven by the first driveline, the second driveline, or the wheels when the synchronized clutch and power disconnect device are operated in a disengaged, non-torque transmitting mode.

Description

[0001] This application claims the benefit of US Application Serial No. 61 / 145,985, filed January 21, 2009. technical field [0002] 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, the power take-off unit includes a coupling for stopping torque transfer from the power source to the rear driveline, while another decoupler selectively interrupts power flow from the wheels to the hypoid ring gear of the rear driveline. A torque coupling selectively connects a portion of the rear driveline with the input of the hypoid ring gear. Background technique [0003] 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 through a gear arrangement, usually comprising a hypoid cross-axis gear set. Other gearing such as parallel axis gears may be provi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K23/08
CPCB60K23/0808B60K23/08Y10T477/606Y10T74/19074B60K17/35B60K17/344B60K23/00F16H37/06F16H37/08
Inventor 托德·埃科宁布雷德利·拉金道格拉斯·布雷德利
Owner MAGNA POWERTRAIN USA