| US 7,562,904 B2 | ||
| Vibration control device providing a desired vibration character in a steering wheel of a vehicle | ||
| Mats Gustavsson, Helsingborg (Sweden) | ||
| Assigned to A2 Acoustic AB, Linköping (Sweden) | ||
| Appl. No. 10/594,931 PCT Filed Mar. 23, 2005, PCT No. PCT/SE2005/000441 § 371(c)(1), (2), (4) Date Sep. 29, 2006, PCT Pub. No. WO2005/095180, PCT Pub. Date Oct. 13, 2005. |
||
| Claims priority of application No. 0400878 (SE), filed on Apr. 01, 2004. | ||
| Prior Publication US 2007/0216123 A1, Sep. 20, 2007 | ||
| Int. Cl. B62D 1/16 (2006.01) | ||
| U.S. Cl. 280—779 | 20 Claims |
| 1. A device for motor vehicles comprising an engine, a power transmission, a wheel suspension and a support structure adapted
to be mounted in the vehicle and a steering wheel, which is rotatably connected to the support structure, the device comprising:
a control unit,
a sensor device operatively connected to the control unit, wherein the sensor device comprises at least one sensor adapted
to be mounted on the steering wheel and adapted to sense vibrations in the steering wheel and to provide a sensor signal related
to the sensed vibrations,
an actuator device operatively connected to the control unit and adapted to influence the vibrations in the vehicle, and
a reference sensor operatively connected to the control unit and adapted to sense vibrations outside the support structure
to provide a reference signal to the control unit, the reference sensor comprising a first reference sensor element adapted
to be mounted on at least one of the engine and the power transmission and arranged to sense engine-excited vibrations and
a second reference sensor element adapted to be mounted in connection with the wheel suspension and arranged to sense road-excited
vibrations,
wherein the control unit is adapted to control the actuator device, with regard to the sensor signal and reference signal,
to act on the vehicle in such a way that a desired vibration character in the steering wheel is obtained.
|