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公开(公告)号：US10378600B2
公开(公告)日：2019-08-13
申请号：US15554050
申请日：2016-03-31
Applicant: ADVICS CO., LTD.
Inventor： Shun Tsukamoto , Koichi Kokubo
IPC: B60T13/66 , F16D65/14 , B60T1/06 , B60T8/00 , B60T13/74 , B60T8/17 , B60T1/00 , F16D63/00 , F16D65/18 , F16D127/06 , F16D125/40 , F16D125/48
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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公开(公告)号：US10604017B2
公开(公告)日：2020-03-31
申请号：US16078265
申请日：2017-02-24
Applicant: ADVICS CO., LTD.
Inventor： Masaki Maruyama , Takahiro Yamaguchi , Koichi Kokubo
IPC: B60T13/66 , B60L7/26 , B60T8/40 , B60T13/68 , B60T8/17 , B60T13/14 , B60T7/04 , B60L7/24 , B60L15/20 , B60T8/48 , B60T8/171 , B60T8/36 , B60T8/72
Abstract: An electric braking device includes: a first valve unit for adjusting a first differential pressure between a master cylinder side liquid pressure and a wheel cylinder side liquid pressure; a storage unit forming a fluid storage chamber; second valve units for adjusting a second differential pressure between the master cylinder side liquid pressure and a storage chamber side liquid pressure; an electric pump for discharging the fluid in the storage chamber; and a control unit which, while operating the electric pump during a time from initiation of braking force application until a request value acquired by a request braking force acquiring unit reaches a maximum value, controls the first valve unit such that the first differential pressure becomes zero, and controls the second valve units such that the second differential pressure becomes zero.
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公开(公告)号：US10933851B2
公开(公告)日：2021-03-02
申请号：US16133806
申请日：2018-09-18
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Jun Shinozaki , Koichi Kokubo , Masayuki Naito , Yuji Yoshii , Masahiro Hara
Abstract: According to one embodiment, for example, when it is determined that a certain condition has been satisfied while first antilock control is being executed, a controller of a brake control apparatus executes second antilock control by opening and closing a solenoid valve with a motor stopped so that brake fluid of the wheel cylinder is caused to flow into a reservoir, the second antilock control including a second pressure reduction mode, the second pressure reduction mode reducing a pressure of a wheel cylinder while substantially equilibrating the pressure of the wheel cylinder and a pressure of the reservoir at a certain pressure or larger, the certain pressure being larger than zero.
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公开(公告)号：US10556573B2
公开(公告)日：2020-02-11
申请号：US15762642
申请日：2016-10-20
Applicant: ADVICS CO., LTD.
Inventor： Motokazu Ishikawa , Koichi Kokubo , Shinichiro Yukoku
Abstract: A braking control device includes a first wheel cylinder on either the left or right front wheel side of a vehicle; a second wheel cylinder on the other side; a first pressure-regulating mechanism that pressurizes the brake fluid inside the first wheel cylinder; a second pressure-regulating mechanism that pressurizes brake fluid inside the second wheel cylinder; and a normally-closed opening/closing valve interposed in a connecting fluid path connecting the first wheel cylinder and the second wheel cylinder and in which, if a sudden operation is determined, the opening/closing valve is put in a connected state and increases the pressure of the brake fluid inside the first and second wheel cylinders by the first and second pressure-regulating mechanisms.
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