POWER SUPPLY CIRCUIT OF VALVE ACTUATOR AND PUMP ACTUATOR OF BRAKE SYSTEM FOR MOTORCYCLE, AND HYDRAULIC CONTROL UNIT OF BRAKE SYSTEM FOR MOTORCYCLE

摘要

PROBLEM TO BE SOLVED: To obtain a power supply circuit of a valve actuator and a pump actuator of a brake system for a motorcycle and a hydraulic control unit of a brake system for a motorcycle, which while satisfying a severe restriction condition to a mounting space for an on-vehicle battery in the motorcycle, can eliminate difficulty in preparing for a short circuit failure of a contactless type driver relay.;SOLUTION: In a power supply circuit 40, an input side end connection of a valve actuator 31 is connected to an on-vehicle battery of a motorcycle via a first lead wire 41, an auxiliary relay 42 that is opened at the time of a short circuit failure of a coil driver relay 31b is provided in the first lead wire 41, and an input side end connection of a pump actuator 32 is connected to the first lead wire 41 on the downstream side of the auxiliary relay 42 via a second lead wire 43.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2018,JPO&INPIT