it is determined at the step s 180 that the operation of the electric brake system 60 is needed the controller 40 operates the electric brake system 60 that is the electric brake system 60 is controlled to generate hydraulic pressure for braking if it is determined at the step s 180 that the operation of the electric brake system 60 is not needed i e it is determined that the predetermined time has passed since the engine 70 was restarted the controller 40 stops the electric brake system 60 that is the hydraulic pressure generated by the electric brake system 60 is released as described above because the engine stop according to the idle stop is prohibited if the disk temperature is higher than or equal to a predetermined temperature according to an exemplary embodiment of the present invention occurrence of braking noise may be prevented for convenience in explanation and accurate definition in the appended claims the terms u201c upper u201d u201c lower u201d u201c inner u201d and u201c outer u201d are used to describe features of the exemplary embodiments with reference to the positions of such features as displayed in the figures the foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description they are not intended to be exhaustive or to limit the invention to the precise forms disclosed and obviously many modifications and variations are possible in light of the above teachings the exemplary embodiments were chosen and described in order to explain certain principles of the invention and their practical application to thereby enable others skilled in the art to make and utilize various exemplary embodiments of the present invention as.