| 摘要 |
PURPOSE: An auto cruise system in a vehicle and method for controlling thereof are provided to enhance fuel efficiency according to road status by controlling constant speed driving using predicted speed. CONSTITUTION: An auto cruise system in a vehicle comprises a GPS receiver(10), a car speed sensing part(20), a user input part(30), a driving control part(40), a storage unit(60) and a driving part(50). The GPS receiver receives GPS information. The car speed detecting part detects car speed of the vehicles. The user input part establishes parameter for controlling constant speed drive. The driving part controls the engine output torque in order to drive the vehicles at a constant speed and reduces speed and brake controls. The storage unit stores characteristic value of vehicle, established parameter and road data which will be driven. The driving control part is based on the car speed of the car speed detecting part and the parameter input through the user input part. |
