Vehicle driving assistance apparatus, vehicle driving assistance method, and computer-readable storage medium storing vehicle driving assistance program

A vehicle driving assistance method, comprising steps of:

• executing an autonomous acceleration/deceleration control of autonomously controlling an acceleration and a deceleration of an own vehicle so as to maintain a moving speed of the own vehicle within a predetermined speed range, or maintain a distance between the own vehicle and another vehicle existing around the own vehicle within a predetermined distance range;
• executing a coasting control of causing the own vehicle to coast when the deceleration of the own vehicle is requested in a situation where the electronic control unit is executing the autonomous acceleration/deceleration control;
• and
• executing a power running control of running the own vehicle with power when the acceleration of the own vehicle is requested in the situation where the electronic control unit is executing the autonomous acceleration/deceleration control,
• wherein the vehicle driving assistance method comprises a step of terminating executing the autonomous acceleration/deceleration control when a predetermined condition relating to at least one of (i) a gradient of a road on which the own vehicle is moving and (ii) the moving speed of the own vehicle in the situation where the electronic control unit is executing the autonomous acceleration/deceleration control.

A computer-readable storage medium storing a vehicle driving assistance program which is configured to:

• execute an autonomous acceleration/deceleration control of autonomously controlling an acceleration and a deceleration of an own vehicle so as to maintain a moving speed of the own vehicle within a predetermined speed range, or maintain a distance between the own vehicle and another vehicle existing around the own vehicle within a predetermined distance range;
• execute a coasting control of causing the own vehicle to coast when the deceleration of the own vehicle is requested in a situation where the electronic control unit is executing the autonomous acceleration/deceleration control;
• and
• execute a power running control of running the own vehicle with power when the acceleration of the own vehicle is requested in the situation where the electronic control unit is executing the autonomous acceleration/deceleration control,
• wherein the vehicle driving assistance program is configured to terminate executing the autonomous acceleration/deceleration control when a predetermined condition relating to at least one of (i) a gradient of a road on which the own vehicle is moving and (ii) the moving speed of the own vehicle in the situation where the electronic control unit is executing the autonomous acceleration/deceleration control.