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Double input planetary gear main reducer

A main reducer, planetary gear carrier technology, applied in the direction of gear transmission, belt/chain/gear, transportation and packaging, etc., can solve problems such as inapplicability and limitations

Inactive Publication Date: 2018-08-03
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as with all engineering problems, the approach suffers from certain limitations
Unfortunately, the cost and complexity of this device make it unsuitable or unsuitable for use in vehicles with low dead weight and payload, such as passenger cars, sport utility vehicles and general trucks

Method used

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  • Double input planetary gear main reducer
  • Double input planetary gear main reducer
  • Double input planetary gear main reducer

Examples

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Embodiment Construction

[0044] The following description is merely exemplary in nature and is not intended to limit the invention, its application or uses.

[0045] refer to figure 1 and figure 2 , the front of the motor vehicle is shown schematically and denoted overall by the reference numeral 10 . Motor vehicle 10 includes a body 12 that houses and supports a prime mover 14 , which may be a gasoline, E-85, or diesel internal combustion engine or a hybrid. The output of prime mover 14 is coupled to the input of transaxle 16 , which has a housing 18 that houses and protects a transmission 20 and a final drive assembly 22 , described in detail below. A pair of output or drive shafts 24 extend transversely and coaxially with the transaxle 16 and are coupled to and drive front tire and wheel assemblies 26 through constant velocity joints (not shown). Motor vehicle 10 also includes steering, braking, electrical, fueling and other systems (not shown), which do not form a critical part of the present ...

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PUM

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Abstract

The invention relates to a double-input planetary gear final reducer. The present invention provides a final drive assembly having a differential driven by a planetary gear set having two inputs. The ring gear of the planetary gear set is fixed. One input is coupled to and drives a planetary carrier, which in turn is coupled to and drives a cage of the differential. The other input is coupled to and drives the sun gear of the planetary gear set. Incorporated into an appropriate powertrain, such as one comprising a dual clutch transmission (DCT) with two outputs, one associated with a high ratio (low) gear and the other with a low ratio In relation to the (high) gear, the sun gear transfers power and increases torque in the low gear. In the high gear, the power is directly transmitted from the planetary gear carrier to the differential cage, avoiding the speed reduction, torque increase and gear mesh loss of the planetary gear set.

Description

technical field [0001] The present invention relates to a final drive assembly for a motor vehicle, and more particularly to a final drive assembly for a motor vehicle including a planetary gear assembly having two inputs. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may or may not constitute prior art. [0003] The final drive assembly of most cars, sport utility vehicles, and trucks includes a differential having two opposing pairs of bevel gears housed in cages secured to A gear that is driven by the output of a transmission or transfer case and turns with it. One of the pair of bevel gears is an idler gear, each meshing with two gears of the other pair of bevel gears coupled to and driving the axle. [0004] Although the primary purpose of a differential is to allow the rotational speed of an axle to vary on different sides when cornering, the hypoid gearset that drives the diff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/28F16H57/037
CPCB60K17/04F16H3/006F16H37/046F16H48/08F16H2003/0931F16H2200/0043
Inventor A.W.菲利普斯
Owner GM GLOBAL TECH OPERATIONS LLC
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