The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 05, 2005

Filed:

Sep. 26, 2002
Applicants:

Yuichi Kuramochi, Hitachinaka, JP;

Toshio Manaka, Hitachinaka, JP;

Hidefumi Adachi, Mito, JP;

Inventors:

Yuichi Kuramochi, Hitachinaka, JP;

Toshio Manaka, Hitachinaka, JP;

Hidefumi Adachi, Mito, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F019/00 ;
U.S. Cl.
CPC ...
Abstract

To provide a headway control system, in which a congestion following processing can be started by the same operation as in ordinary driving. An arrangement is provided that lets a following control unitto start a control to follow a preceding vehicle on condition that a characteristic value, which is produced in a host vehicle when a driver starts moving the host vehicle, is detected in congested traffic. Acceleration or a vehicle speed may be used as the characteristic value. Another possible arrangement is to start the following control on condition that a variation in an engine of the host vehicle, which is generated in the host vehicle when the driver operates to start moving the host vehicle, is detected in congested traffic. For example, the following control may be started under condition that at least either one of the following is detected: an increase in an engine speed, an increase in an intake pressure, an increase in an injection pulse width, an increase in an engine oil pressure, and an increase in the number of ignition pulses.


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