Braking-force-maintaining device for vehicle and electric braking device for vehicle
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United States of America Patent
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Aug 13, 2019
Grant Date -
Mar 15, 2018
app pub date -
Mar 31, 2016
filing date -
Mar 31, 2015
priority date (Note) -
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Abstract
In an electric braking device for a vehicle, the following are carried out in order: a first lock process in which either torque for shifting the ratchet gear in a release direction is generated in an electric motor or the driving of the electric motor is stopped, while a pawl member is being pressed against a ratchet gear; a second lock process in which the rotational angle of the ratchet gear is brought to an angle different from a semi-engaging rotational angle by driving the electric motor; and a third lock process in which the ratchet gear is rotated in the release direction by driving the electric motor in reverse.
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