BRAKE SYSTEM
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United States of America Patent
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Issued Date -
Dec 13, 2018
app pub date -
May 29, 2018
filing date -
May 29, 2018
priority date (Note) -
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Abstract
A brake system includes: brake cylinders; electromagnetic valve devices respectively corresponding to the brake cylinders and capable of individually controlling hydraulic pressures in the respective brake cylinders; pumps respectively connected to the brake cylinders; one pump motor driven in common with the pumps; and a brake-hydraulic-pressure controller that controls the electromagnetic valve devices and the one pump motor to control the hydraulic pressures in the respective brake cylinders. The brake-hydraulic-pressure controller includes: a first pressure-increase controller that controls the one pump motor to bring the hydraulic pressures in the respective brake cylinders closer to respective target hydraulic pressures; and a second pressure-increase controller that controls the one pump motor based on a greatest one of the target hydraulic pressures for the respective brake cylinders and control the electromagnetic valve devices to bring the hydraulic pressures in the respective brake cylinders closer to the respective target hydraulic pressures.
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