Vehicle constant speed travel control device, vehicle constant speed travel control method, and vehicle constant speed travel control program

摘要

A number-of-operations information storage unit (113) stores number-of-operations information in which a plurality of conditions of the vehicle is defined and number of acceleration operations and number of deceleration operations performed by a vehicle are described for each condition defined. A correction speed specifying unit (109) detects a current condition of the vehicle, when the vehicle travels at a constant speed, extracts number of acceleration operations and number of deceleration operations described for a condition corresponding to the detected current condition of the vehicle from the number-of-operations information, compares the extracted number of acceleration operations with the extracted number of deceleration operations, specifies a correction speed higher than a set speed for a constant-speed travel if the number of acceleration operations is larger than the number of deceleration operations, and specifies a correction speed lower than the set speed if the number of deceleration operations is larger than the number of acceleration operations. A constant-speed travel control unit (108) makes the vehicle travel at a constant speed based on the correction speed specified by the correction speed specifying unit (109).