Method for operating a motor vehicle with selectable all-wheel drive

A motor vehicle, all-wheel drive technology, applied in vehicle components, control devices, transportation and packaging, etc., can solve problems such as increased tire wear, increased fuel consumption, etc., to prevent noise, reduce wear, and increase accuracy.

Active Publication Date: 2018-07-24
FORD GLOBAL TECH LLC
View PDF11 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Increased tire wear due to tire friction
[0013] Increased fuel consumption due to negative torque mentioned in point 2

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
  • Method for operating a motor vehicle with selectable all-wheel drive
  • Method for operating a motor vehicle with selectable all-wheel drive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] As required, detailed embodiments of the present invention are disclosed herein. It is to be understood, however, that the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms. The drawings are not necessarily to scale; some illustrations may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.

[0034] refer to figure 1 , shows a motor vehicle 2 like eg a passenger car. The motor vehicle includes optional all-wheel drive for which the two front wheels 4a, 4b are permanent and the two rear wheels 6a, 6b are optional.

[0035] For this purpose, the motor vehicle 2 in the exemplary embodiment includes an engine 10 , a manual transmission 12 and a clutch 14 disposed betwe...

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

The invention concerns a method for operating a motor vehicle with selectable all-wheel drive. The all-wheel drive is implemented with no central differential and the rear axle is implemented with noaxle differential. The motor vehicle includes first and second partial clutches for independently decoupling left and right rear wheels from the drive train of the motor vehicle motor vehicle. The method includes determining a value that is representative of a ratio of the speeds of the front wheels to each other, comparing the value with a reference value, and disengaging the partial clutch thatis associated with an outer rear wheel when the motor vehicle is turning, when the value is greater than the reference value, in order to prevent negative torques on the outer rear wheel.

Description

technical field [0001] The invention relates to a method for operating a motor vehicle with optional all-wheel drive. The invention also relates to a computer program product and a control unit for carrying out such a method as well as a motor vehicle having such a control unit. Background technique [0002] All-wheel drive means a type of motor vehicle drive in which, as opposed to front-wheel drive or rear-wheel drive, drive power is supplied to all wheels of the motor vehicle that are in contact with the ground. Another and partly globally used designation for all-wheel drive is AWD (All Wheel Drive), and for four-wheel vehicles the names are 4×4 (four by four) and 4WD (Four Wheel Drive). drive)). [0003] The most commonly used version today consists of a single drive (mainly an internal combustion engine such as a petrol or diesel engine) whose power is distributed to several axles and wheels. From a technical point of view, all-wheel drive can be divided into two ba...

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): B60K23/08
CPCB60K23/0808B60K2023/0816B60W30/18145B60W30/045B60W2720/406B60W10/119B60W40/072B60W2520/125B60W2520/14B60W2520/28
Inventor 西里尔·科尔曼卢西恩·立波克
Owner FORD GLOBAL TECH LLC
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap