Travel control system for vehicle

A vehicle cruise control method that controls traveling of a vehicle, the vehicle cruise control method comprising:

• generating, by arithmetic circuitry, a route that avoids an obstacle on a road, based on an output from a vehicle exterior information acquisition device;
• determining, by the arithmetic circuitry, a target motion of the motor vehicle during traveling of the motor vehicle along the route;
• calculating, by the arithmetic circuitry, a target physical momentum of a traveling device for achieving the target motion, the vehicle exterior information acquisition device being configured to acquire information on an environment outside of the motor vehicle;
• and
• generating, by device control circuitry, an actuation control signal for controlling an actuation of the traveling device mounted in the motor vehicle, based on an arithmetic result obtained by the arithmetic circuitry, and outputting the actuation control signal to the traveling device,
• inputting to both the arithmetic circuitry and the device control circuitry in parallel, driving operation information on an operation performed by a driver;
• reflecting, by the arithmetic circuitry, the driving operation information in a process of determining the target motion;
• and
• reflecting, by the device control circuitry, the driving operation information in the control of the actuation of the traveling device.