VEHICLE DRIVING ASSISTANCE APPARATUS

A vehicle driving assistance apparatus (10) executes a first driving assistance control of causing a host vehicle (100) to travel by autonomously repeating powering and coasting of the host vehicle (100) alternately such that a traveling speed of the host vehicle (100) is maintained within a range between target upper and lower limit speeds. The apparatus (10) sets a speed obtained by adding a predetermined upper limit variation amount to a set vehicle speed as the target upper limit speed, and sets a speed obtained by subtracting a predetermined lower limit variation amount from the set vehicle speed as the target lower limit speed. When the target lower limit speed is lower than a legal minimum speed during execution of the first driving assistance control, the apparatus (10) changes the predetermined lower limit variation amount such that the target lower limit speed is equal to or higher than the legal minimum speed.