| 摘要 |
In a brake-by-wire brake system for a motorcycle, a pressure regulator is interposed between a pressure-generating unit and a brake caliper to regulate an output hydraulic pressure of the pressure generator, and to apply the regulated hydraulic pressure to a brake caliper. The pressure regulator is controlled by a control unit, based on input from an applied operating force detector, to minimize or prevent influences of engine vibration and heat on the pressure regulator. The pressure regulator is arranged between an engine body and a fuel tank disposed in back of an intake system connected to and extending upwardly from a cylinder head of the engine body; where the intake system is disposed on an upper side of the engine body. The pressure regulator is flexibly supported, through a flexibly resilient case, by a support cage attached to a body frame.
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