Vehicle with power assist unit and controlling method therefor

摘要

In a vehicle (1) with power assist unit (3) and a controlling method for the same of the present invention, an acceleration calculation unit (8) calculates an acceleration in a reference environment in the case where the vehicle runs in the reference environment on the basis of a human drive force from a human drive power detection unit, a speed from a speed detection unit (6a), and preset various reference parameters in the reference environment from a reference environment setting unit. Furthermore, an assist ratio determination unit compares the current acceleration with the acceleration in the reference environment supplied from the acceleration calculation unit and then determines an assist ratio on the basis of the result of the comparison.