Title:
【発明の名称】ソナー位置センサを有するショックアブソーバ
Document Type and Number:
Japanese Patent JP2977898
Kind Code:
B2
Abstract:
A damping device operable to change a suspension characteristic of a vehicle in response to changes in a relative relationship between the piston and the cylinder of the damping device. The damping device comprising a pressure cylinder forming a working chamber operable to store damping fluid. A piston is disposed within the pressure cylinder defining an upper and lower portion of the working chamber. The damping device further comprises a transducer for emitting and receiving sound waves within the lower portion of the working chamber. The sound waves emitted by said transducer are reflected by the end surface of the cylinder or a base valve mounted at the end of the cylinder and are received by said transducer. A timing circuit determines the difference in time between the emitted and reflected sound waves and generates an output in response thereto. A central processor calculates the desired relative relationship, such as the relative distance between the piston and the base valve, from the output of the timing circuit.
Inventors:
BEZERU MAIKERU AARU
Application Number:
JP51678691A
Publication Date:
November 15, 1999
Filing Date:
September 25, 1991
Export Citation:
Assignee:
TENEKO OOTOMOOTEIBU INC
International Classes:
B60G17/019; B60G17/08; F16F9/32; F16F9/50; B60G17/00; G01B17/00; G01S15/88; (IPC1-7): F16F9/32; B60G17/08; F16F9/50; G01B17/00
Domestic Patent References:
| JP6364811A | ||||
| JP61258182A | ||||
| JP6412284A | ||||
| JP4221217A | ||||
| JP62156636U | ||||
| JP6041085U | ||||
| JP6023334U | ||||
| JP171624U |
Attorney, Agent or Firm:
Kazuo Shamoto (4 outside)