| 摘要 |
PROBLEM TO BE SOLVED: To provide a brake control device capable of maintaining sufficient responsiveness regarding braking control even if a power source voltage is reduced. SOLUTION: The brake control device in any form is provided with an oil pump driven by receiving the feeding of electric power from a battery and feeding an operation fluid to an accumulator by motive power to execute pressure accumulation; a voltage detection sensor for detecting an output voltage of the battery; an accumulator pressure sensor for detecting accumulator pressure Pacc; and a brake ECU for starting the drive of the oil pump to start pressure accumulation to the accumulator when accumulator pressure Pacc becomes pressure-accumulation starting liquid pressure or lower, stopping the drive of the oil pump to finish the pressure accumulation to the accumulator when the accumulator pressure Pacc higher pressure-accumulation completion liquid pressure or higher than the pressure-accumulation starting liquid pressure, and increase-setting the pressure-accumulation completion liquid pressure by a predetermined amount when the output voltage of the battery is an allowance reference value Vref or smaller. COPYRIGHT: (C)2010,JPO&INPIT
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