Title:
TRAVEL ROAD DISCRIMINATING DEVICE
Document Type and Number:
Japanese Patent JP3700508
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To easily and precisely discriminate whether present traveling road is an expressway or a road equivalent to the expressway without any special equipment such as a GPS computer and map data.
SOLUTION: A state detecting means 9 detects at least one of the travel state of the vehicle and the state of a travel path where the vehicle travels. A state discriminating means 7 discriminates whether or not the state detected by the state detecting means 9 is a state equivalent to an expressway. When the state discriminating means 7 discriminates that the state is a state equivalent to the expressway, an integrating means 8 integrates parameters corresponding to the continuance of the discrimination and substantially clears the integral value when the state discriminating means 7 discriminates that the state is not the state corresponding to the expressway. Then a travel road discriminating means 5 discriminates that the vehicle is traveling on the expressway or the road equivalent to the expressway when the integral value exceeds a specific value.
Inventors:
Takashi Ota
Yasuo Motoyama
Yasuo Motoyama
Application Number:
JP35983599A
Publication Date:
September 28, 2005
Filing Date:
December 17, 1999
Export Citation:
Assignee:
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
International Classes:
G01B11/00; B60R21/00; B60W30/00; G01B21/00; G06T1/00; G06T7/60; G08G1/16; (IPC1-7): G06T1/00; B60R21/00; G01B11/00; G01B21/00; G08G1/16
Domestic Patent References:
| JP11023299A | ||||
| JP8029188A | ||||
| JP7083693A | ||||
| JP6144277A | ||||
| JP2137098A | ||||
| JP2137096A |
Attorney, Agent or Firm:
Yu Sanada
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