| 摘要 |
PROBLEM TO BE SOLVED: To restrain follow-up travel control from being unnecessarily stopped by judging whether or not a traveling state of a low friction coefficient road surface is temporary by monitoring braking operation, and stopping the follow-up travel control only when the low friction coefficient road surface continues without stopping the follow-up travel control when the traveling state is temporary. SOLUTION: Antilock brake control flags ASPL to ASRR of an antilock brake control device 8a are inputted to a travel control controller 20. The travel control controller 20 stops follow-up travel control when a low friction coefficient road surface continues by judging whether a traveling state is a temporary low friction coefficient road surface or a low friction coefficient continuing road surface by monitoring an antilock brake control state under follow-up travel control. Therefore, inadvertent stopping of follow-up travel control processing can be prevented since the follow-up travel control processing is continued as it is without stopping it when traveling on a temporary low friction coefficient road surface such as a cover of a manhole and a joint of a bridge.
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