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Electronically controlled differential locker

A differential, electric technology, applied in the direction of control device, differential transmission device, clutch, etc., can solve problems such as unsatisfactory and undesired vehicle performance

Pending Publication Date: 2019-07-30
GKN AUTOMOTIVE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this solution may be satisfactory in some driving conditions, it is not satisfactory under conditions where one of the powered wheels experiences a surface with a much lower coefficient of friction than the surface that the other wheel(s) engages. Satisfied
This condition prevents torque from being applied to the wheel with more traction, resulting in undesired vehicle performance

Method used

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  • Electronically controlled differential locker
  • Electronically controlled differential locker
  • Electronically controlled differential locker

Examples

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Embodiment Construction

[0032] Referring to the accompanying drawings in more detail, figure 1 A vehicle driveline 12 is illustrated providing power from an engine 14 to a plurality of wheels including front wheels 15 and rear wheels 16 . The engine 14 provides torque via a transmission 17 and a power transfer unit 18 which provides an output shaft 20 . The output shaft 20 is coupled to a first prop shaft 21 which is coupled to a rear drive unit 22 which may include a differential assembly 23 . The power transfer unit 18 or other device may have an output shaft 24 coupled to a front drive unit 25 (which may include a differential assembly 26 ) via a second prop shaft 27 . The left and right front side shafts 28 , 29 are coupled to a drive unit 25 / differential 26 that allows relative rotation between the side shafts 28 , 29 and the front wheels 15 . The left and right rear sideshafts 30 , 32 are coupled to a rear drive unit 22 / differential 23 that allows relative rotation between the sideshafts 30...

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PUM

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Abstract

In at least some implementations, a system for a vehicle differential having multiple gears includes a coil of wire, a drive member movable in response to a magnetic field generated by application ofelectricity to the coil between a first position and a second position, and a lock member coupled to the drive member for movement with the drive member throughout a range of movement of the drive member. The lock member is adapted to engage a gear of the differential when the drive member is in the second position and the lock member is adapted to be disengaged from the gear when the drive memberis in the first position. In this way, the differential may be selectively locked.

Description

[0001] References to related applications [0002] This application claims the benefit of U.S. Provisional Application Serial No. 62 / 438,118, filed December 22, 2016, the entire contents of which are incorporated herein by reference. technical field [0003] The present disclosure generally relates to an electronically controlled vehicle differential locking device. Background technique [0004] During normal operation of a motor vehicle, typically all four wheels may not turn at the same rate. Different wheel rotation rates are most commonly encountered when a vehicle is cornering, but can also be caused by braking or uneven road conditions. To accommodate different wheel rotation rates while continuing to direct power to the two wheels, a differential may be provided that allows for different wheel rotation rates between the powered wheels. This differential allows the wheels to spin at different rates as power is transmitted to each wheel. While this solution may be sa...

Claims

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Application Information

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IPC IPC(8): B60K17/00B60K17/16B60K17/346B60K23/08
CPCB60K17/00B60K17/16B60K17/165B60K17/344B60K17/346B60K23/04B60K23/08B60K2023/046B60Y2400/421F16H48/34F16H2048/204F16H48/24F16D27/118F16H48/08F16H2048/346
Inventor R.M.约翰逊R.L.普瑞特
Owner GKN AUTOMOTIVE INC