Title:
【発明の名称】車輌の相対方位検出方法
Document Type and Number:
Japanese Patent JP2767315
Kind Code:
B2
Abstract:
PCT No. PCT/JP91/01175 Sec. 371 Date Jun. 24, 1992 Sec. 102(e) Date Jun. 24, 1992 PCT Filed Sep. 2, 1991.Travel locus vectors of a vehicle are calculated at prescribed time intervals on the basis of data related to the rotational angle of a pair of wheels of the vehicle. The relative travel direction of the vehicle is detected on the basis of the travel locus vectors. The prescribed time intervals are changed in response to at least one traveling condition of the vehicle selected from its traveling speed and its turning angle.
Inventors:
ISHIKAWA MASATAKA
Application Number:
JP23423690A
Publication Date:
June 18, 1998
Filing Date:
September 04, 1990
Export Citation:
Assignee:
ZEKUSERU KK
International Classes:
G01C21/00; G01C22/00; G01C21/26; G01C22/02; (IPC1-7): G01C21/00
Domestic Patent References:
| JP445476A | ||||
| JP6488311A | ||||
| JP2129515A | ||||
| JP2178690A | ||||
| JP2302615A | ||||
| JP371015A | ||||
| JP2264811A | ||||
| JP2208510A | ||||
| JP2198314A | ||||
| JP62194914A | ||||
| JP60170715A |
Attorney, Agent or Firm:
Masatoshi Takano