Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Differential gearing

A transmission device and transmission system technology, applied in the direction of differential transmission device, transmission device, control device, etc., can solve the problems affecting the speed difference and achieve the effect of small rotating mass

Inactive Publication Date: 2009-10-14
MAGNA POWERTRAIN AG & CO KG
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A pure differential cannot effectively affect the speed difference that exists

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Differential gearing
  • Differential gearing
  • Differential gearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] exist figure 1 An exemplary motor vehicle powertrain 10 is schematically shown in FIG. 2 , including a transmission 12 having a force transmission path 16 , an engine 18 and a transmission 20 . The force transmission path 16 includes a cardan shaft 28 driven through a transmission 20 , a pair of shafts 30 connected to a pair of wheels 32 , and a main drive 34 effective to transmit drive torque from the cardan shaft 28 to one or both shafts 30 . Although a vehicle driveline with rear drive is shown here by way of example, the invention can of course also be used in a vehicle driveline with front-wheel drive or all-wheel drive.

[0036] In order to achieve so-called "torque vectoring" driving (TV driving) and / or differential locking driving, the control unit 40 controls the operation of the main transmission 34 on the basis of a number of vehicle parameters. The control unit 40 is electronically connected to at least one sensor, preferably a plurality of sensors. Exemp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A transmission has a rotatable differential cage (74) and two output shafts (64). In order to distribute a torque between the output shafts (64), at least one balancing wheel (76) is rotatably mounted on the differential cage (74), which balancing wheel (76) is drive-coupled to a respective drive wheel (78) of the output shafts (64). The gearing also has at least one concavely curved coupling wheel (80) which is drive-coupled firstly to at least one of the drive wheels (78) and secondly to at least one hollow shaft (82). The hollow shaft (82) surrounds one of the output shafts (64). The hollow shaft (82) can be braked or driven relative to a part of the gearing.

Description

technical field [0001] The invention relates to a transmission for a motor vehicle with a rotatable differential carrier and two output shafts, wherein the differential carrier is rotatable in order to distribute the torque between the output shafts At least one balance wheel, which is drive-coupled to a respective drive wheel of the output shaft, is arranged in a fixed manner. Background technique [0002] So-called "active-yaw" or "torque vectoring" (TV) systems are known for modern drive trains, for example all-wheel drive trains. The yaw rate of the vehicle is effectively controlled by the TV system, where the transmission torque will be unevenly distributed on the wheels. In this way, for example, more transmission torque can be transferred to the outer cam, so that under normal driving conditions the behavior of the overcontrol can be adjusted. [0003] Differential transmissions with optionally activatable differential locks are also known in order to suppress the s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B60K23/04B60K23/08F16H48/30
CPCB60K23/04F16H48/30F16H48/22F16H48/11F16H2048/204F16H2048/085F16H48/08F16H48/24
Inventor 曼弗雷德·拉姆
Owner MAGNA POWERTRAIN AG & CO KG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com