System and method for assisting driver

A method of supporting a driver, the method comprising:

• receiving, by a controller, vehicle traveling information;
• calculating, by the controller, a first distance between a present vehicle position and an end node and a second distance between the present vehicle position and a preceding vehicle based on the received information;
• calculating, by the controller, a third distance in which coasting is available until a present vehicle speed reaches a predetermined target speed;
• determining, by the controller, whether coasting is available based on the first distance between the present vehicle position and the end node, the second distance between the present vehicle position and the preceding vehicle, the third distance in which coasting is available, and the present vehicle speed;
• and
• outputting, by the controller, a message that instructs coasting, when coasting is available.

A non-transitory computer readable medium containing program instructions executed by a controller, the computer readable medium comprising:

• program instructions that receive vehicle traveling information;
• program instructions that calculate a first distance between a present vehicle position and an end node and a second distance between the present vehicle position and a preceding vehicle based on the received information;
• program instructions that calculate a third distance in which coasting is available until a present vehicle speed reaches a predetermined target speed;
• program instructions that determine whether coasting is available based on the first distance between the present vehicle position and the end node, the second distance between the present vehicle position and the preceding vehicle, the third distance in which coasting is available, and the present vehicle speed;
• and
• program instructions that output a message that instructs coasting, when coasting is available.