Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for checking the plausibility of a determined vehicle mass

A technology for motor vehicles and wheels, applied in weighing, elastic suspension, measuring devices, etc., can solve the problems of input signal and system parameter interference or change response are relatively sensitive, and the availability is reduced

Active Publication Date: 2009-01-07
ROBERT BOSCH GMBH
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The schemes for estimating mass known at the time had the disadvantage that they were relatively sensitive to disturbances or changes in the input signal and system parameters
However, the availability of such estimates decreases as the number of events that allow such estimates decreases with increasing precision requirements

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 checking the plausibility of a determined vehicle mass
  • Method for checking the plausibility of a determined vehicle mass
  • Method for checking the plausibility of a determined vehicle mass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The heart of the invention lies in the fact that the load on the motor vehicle is reflected in changes in the wheel load. Conversely, the load can be inferred from the static and dynamic wheel loads. Wheel loads can be calculated from the wheel slip response to known tire longitudinal forces. The calculation of the wheel load depends on some other parameters (eg tire longitudinal stiffness) which are explained below. Because these parameters may change during vehicle operation and may cause corresponding errors in the wheel load calculation, it is necessary to establish a relationship between the changes in the wheel load. If these parameters, although largely unknown, are considered to be of the same magnitude on all wheels, then the parameters are reduced and are no longer a source of error.

[0039] From a comparison of the static wheel loads with one another, for example, the instantaneous center of gravity position along the longitudinal axis can be deduced, for ...

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 relates to a method for detecting the loading state of a motor vehicle, in which first wheel loads of all wheels are determined in the absence of cornering, second wheel loads of at least the rear wheel which is on the inside of the bend and of the front wheel which is on the inside of the bend are determined when cornering, and information relating to the loading state of the motor vehicle is determined on the basis of the first and second wheel loads of the wheels which are on the inside of the bend.

Description

technical field [0001] The invention relates to a method for detecting the loading state of a motor vehicle. Background technique [0002] The performance of a motor vehicle, for example with respect to longitudinal dynamics or transverse dynamics, is strongly influenced by its mass and the position of its center of gravity. For example, the ideal distribution of braking force depends largely on the load on the respective axle. [0003] If the motor vehicle has a greater possible load, the overall weight of the motor vehicle is doubled due to the load. The position of the center of gravity in the longitudinal direction can be shifted by several tens of centimeters in the latter direction. Due to the difference in total weight, the performance of the driving dynamics regulator and wheel slip regulator is affected. For example, a loaded motor vehicle requires a much higher drive torque in order to achieve satisfactory acceleration. A simultaneously loaded drive shaft can r...

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): G01G19/08
CPCG01M1/122G01G19/086B60G2800/915B60G17/0162B60G2400/61B60G2800/24B60G2800/012
Inventor M·尼莫L·博罗斯M·沃默
Owner ROBERT BOSCH GMBH