Vehicle travel control system, vehicle, and vehicle travel control method

A travel control method for a vehicle, the vehicle including a battery pack and a travel control system, the battery pack including a battery, a current sensor configured to detect a current that is charged and discharged to and from the battery, and a first control device that monitors a state of the battery, and the travel control system including a rotary electric machine configured to consume electric power to generate a driving force and configured to generate electric power, a power conversion device electrically connected between the battery and the rotary electric machine, and a second control device that controls the power conversion device, the travel control method comprising:

• outputting an allowable current of the battery from the first control device to the second control device, the allowable current being determined to protect the battery;
• and
• executing, with the second control device, current feedback control using the allowable current as a control threshold, wherein
• the current feedback control is control to correct, when a detection value of the current sensor exceeds the control threshold, a power limit value based on an amount by which the detection value exceeds the control threshold, the power limit value indicating an electric power that is allowed to be charged and discharged to and from the battery.