| 摘要 |
PROBLEM TO BE SOLVED: To provide an antilock brake system for a trailer that is reliable by efficiently charging an electrical storage part. SOLUTION: When an S/G 53 (generator) generates sufficient electrical power to charge an electrical double layer capacitor 54, the electrical double layer capacitor 54 is charged with electrical power formed when electrical power generated by the S/G 53 is superposed on electrical power by a power supply part 40 supplied via a power line 300. When the S/G 53 generates insufficient electrical power to charge the capacitor 54, it is charged with electrical power by the power supply part 40 supplied via the power line 300. Even when electrical power is rapidly consumed by, for example, a solenoid valve operated to generate braking force, the continuous charging with electrical power supplied via the power line 300 can prevent an over-discharged state and efficiently charge the capacitor 54. COPYRIGHT: (C)2003,JPO
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