Arrangement for control of a chassis vibration damping device

Details Arrangement for control of a chassis vibration damping device Arrangement for control of a chassis vibration damping device

1995-04-28

1998-02-24

Teska, Kevin J.

Boots, shoes, and leggings

364424047, 364426037, 250158, 250707, B60G 1706, B60G 17015

Patent

active

057216819

ABSTRACT:
For control of a frame-vibration damping device with a variable damping force characteristic in a motor vehicle (1), adjustment devices (9) of the vibration dampers (7) being controlled as a function of evaluated measurement signals of a single acceleration sensor (17) detecting the instantaneous value of an acceleration variable. The measurement direction (19) of the acceleration sensor (17) is turned at an angle of 45.degree. in each case to the three axes of motion of the vehicle (longitudinal axis x, transverse axis y, and vertical axis z). Signal separation means (25) separate a first measurement signal component (b.sub.z) by means of a bandpass filter (31) with midfrequency tuned to the natural frequency of the vehicle body (3), which represents the acceleration component in the vertical direction (z). Subtraction means (33), which develop the difference of the measurement signal of the acceleration sensor (17) and the first measurement signal component (b.sub.z), deliver a second measurement signal component (b.sub.xy) for the acceleration component in the plane of the longitudinal axis x and the transverse axis y. Evaluation means (35, 37) associated with the two measurement signal components deliver damping force requirement components n.sub.Z and n.sub.xy which are added by adding means (39) to obtain a control signal which controls the adjusting device (9) representing the entire damping force requirement.

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