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Control device and method for adjusting the shock absorber stiffness of a shock absorber of a motor vehicle

A technology for controlling equipment and motor vehicles, which is applied to vehicle components, transportation and packaging, elastic suspension, etc., and can solve problems such as changing the hardness of shock absorbers

Active Publication Date: 2021-10-29
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While the body-fixed sensor unit generates a signal for a continuous, long-term upward movement, this also needs to be ignored, since the vehicle moves upwards as a whole and it does not make sense to change the damper stiffness for this movement

Method used

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  • Control device and method for adjusting the shock absorber stiffness of a shock absorber of a motor vehicle
  • Control device and method for adjusting the shock absorber stiffness of a shock absorber of a motor vehicle
  • Control device and method for adjusting the shock absorber stiffness of a shock absorber of a motor vehicle

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Embodiment Construction

[0030] The examples set forth below refer to preferred embodiments of the invention. In the exemplary embodiments, the components of the embodiment represent individual features of the invention that can be observed independently of one another, which also develop the invention independently of one another and can therefore also be developed individually or in the form of Combinations other than those shown are considered to be part of the invention. Furthermore, the described embodiments can also be supplemented by other features of the invention which have already been described.

[0031] In the figures, functionally identical elements are each assigned the same reference numerals.

[0032] figure 1 A motor vehicle 1 is shown which, in the exemplary embodiment shown, can be driven precisely on a driving surface 2 , for example a street. The motor vehicle 1 can have a frame or a body 3 which can be elastically mounted in a known manner on a chassis 4 of the motor vehicle 1...

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PUM

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Abstract

The invention relates to a method for adjusting the damper hardness of a shock absorber (6) of a wheel (5) of a motor vehicle (1), wherein a first A body motion signal (30) is generated from a first sensor signal (22) of a sensor unit (21), said first sensor unit being kinematically and fixedly connected to the body (3) of the motor vehicle (1), which is controlled by a second sensor unit The second sensor signal (24) of (23) produces a wheel motion signal (32), said second sensor unit detects the wheel position of the wheel (5) relative to the vehicle body (3), based on the vehicle body motion signal (30) and The wheel motion signal (32) generates a speed signal (20) describing the speed of the vehicle body (3), and an adjustment signal (8) for adjusting the stiffness of the shock absorber is generated based on the speed signal (20). The invention provides that the vehicle body motion signal (30) is filtered by means of a first filter unit (33) having a high-pass characteristic or a band-pass characteristic, and / or by means of a second filter unit (34) having a low-pass characteristic. The wheel motion signal (32) is filtered.

Description

technical field [0001] The invention relates to a method and a control device for adjusting the damper stiffness of a damper of a wheel of a motor vehicle. The shock absorber stiffness is adjusted on the basis of two sensor signals, one of which is received by a sensor unit on the body of the motor vehicle and a second sensor signal is received by a sensor unit which detects the wheel movement of the wheels. Background technique [0002] Such a method and such a control device are known, for example, from DE 10 2013 219 588 A1. According to said patent document, acceleration sensors are respectively arranged on the chassis of the motor vehicle and on the wheels of the motor vehicle, the respective speeds are calculated from their sensor signals. An adjustment signal for adjusting the stiffness of the shock absorber is then generated thereby. In this method, it is provided that the sensor signals of the two sensors are used for all vibration frequencies of the body motion o...

Claims

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Application Information

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IPC IPC(8): B60G17/06B60G17/08B60G17/018
CPCB60G17/018B60G17/06B60G17/08B60G2400/102B60G2400/202B60G2400/206B60G2400/252B60G2400/91B60G2500/10B60G15/06B60G17/01908B60G2204/62B60G2600/602B60G2600/604
Inventor F.贝雷克S.库克拉
Owner VOLKSWAGEN AG