| 摘要 |
PURPOSE: To improve traveling stability and riding comfort of a road surface traveling vehicle by furnishing a stationary cover made of a non-magnetic material with a sensor coil, providing a permanent magnet on the guiding closed side on a free end of a damper cylinder and providing an evaluation circuit. CONSTITUTION: A vibration damper is connected to a wheel mass by a connecting member 4, and a piston rod 2 is connected to a car body mass through a fixed member. The rod 2 passes through a guiding closed member 36, a permanent magnet 10 is fixed on the member 36, a cover 35 made of a non-magnetic material is fixed on the rod 2 through a connecting means 19 and a sensor coil 8 is buried in it outside of a damper cylinder 1. When the cylinder 1 is pushed up by a non-planar property of a road surface, the magnet 10 moves upward in the coil 8, and voltage in proportion to speed is induced in the coil 8. This induced voltage is transmitted to a filter 20 through a connecting line 12, supplied to a microprocessor 28, and this evaluation circuit eliminates work of the vibration damper and prevents transmission to the car body mass. |
