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Method for operating a motor vehicle and motor vehicle

A technology of motor vehicle and kinematics, applied in transportation and packaging, vehicle parts, steering mechanism, etc., can solve the problems of reducing the driving safety of motor vehicles, and achieve the effects of simple manufacturing, cost saving and safety improvement

Inactive Publication Date: 2013-02-27
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This reduces the driving safety of motor vehicles

Method used

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  • Method for operating a motor vehicle and motor vehicle

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Embodiment Construction

[0020] Motor vehicle 10 is operated in “rear wheel drive” (mode) during driving, in which rear wheels 12 , 14 are actively driven. In this drive mode, front wheels 16 , 18 of motor vehicle 10 are not actively driven.

[0021] Motor vehicle 10 also has a chassis system 20 which can set the track angle of front wheels 16 , 18 by means of actuators 22 , 24 . When driving in the “rear-wheel drive” drive mode, the track angles of the front wheels 16 , 18 are now set optimally for this type of drive. If the driver or the control unit now changes the drive mode, the control unit 26 of the chassis system 20 actuates the actuators 22 , 24 in such a way that the track angle of the front wheels 16 , 18 changes. For this purpose, a memory 28 is provided in the control unit 26 , in which the values ​​of the track angles of the wheels 16 , 18 respectively determined before driving are stored for the different drive modes, for example in the form of characteristic curves and characteristic ...

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Abstract

The invention relates to a method for operating a motor vehicle (10) which can be moved in at least two driving modes which differ from one another with respect to at least one wheel (12, 14, 16, 18) of the motor vehicle (10) in terms of whether or not it is driven. In order to increase the safety in the driving behaviour, when the driving mode changes a previously defined value which is assigned to the current driving mode is set for a variable which is related to a chassis device (20) of the motor vehicle (10).

Description

technical field [0001] The invention relates to a method for operating a motor vehicle which is characterized in that it can be driven in at least two drive modes, wherein the modes differ from one another with regard to whether at least one wheel is driven. The invention also relates to a motor vehicle. Background technique [0002] Drive modes such as "front-wheel drive", "rear-wheel drive" or "all-wheel drive" are known. [0003] The driver of the motor vehicle can now change the drive mode, for example via driver input. It is also possible for the control unit to bring about the switching of the drive mode, as is usually the case in hybrid vehicles which, in addition to the internal combustion engine, also have an electric drive which is switched on or off as required. [0004] Depending on the respective driving mode, different settings are sometimes required with respect to the chassis system of the motor vehicle in order to ensure optimum and safer driving behavior....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G17/016B60G17/0195
CPCB60G2200/422B60G17/016B60G17/0195B60G2200/464B62D17/00B60G2200/42B60G2200/4622B60G2300/50B60G2200/46
Inventor M·魏因
Owner AUDI AG