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公开(公告)号：US20190100181A1
公开(公告)日：2019-04-04
申请号：US16082143
申请日：2017-03-28
Applicant: ADVICS CO., LTD.
Inventor： Tatsushi Kobayashi , Takayuki Yamamoto , Yasuhito Ishida , Kunihiro Nishiwaki
IPC: B60T8/48 , B60T8/36 , B60T8/1761 , B60T8/26
Abstract: This invention is characterized in being provided with: a determining unit for determining the execution of a state transition from a pressure increase mode in which an electric pump is operated with a differential valve being in a closed state and a holding valve being in an open state to a pressure decrease mode in which the electric pump is operated with the holding valve being in a closed state and the differential valve being in an open state; and a control unit for controlling, when the determining unit determines the execution of the state transition, one or more of the differential valve, the holding valve, a pressure reduction valve, and the electric pump, and reducing the amount of a braking fluid retained in a path between the differential valve and the holding valve.
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公开(公告)号：US20190092303A1
公开(公告)日：2019-03-28
申请号：US16136859
申请日：2018-09-20
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Osayoshi KATO , Yoshio MASUDA , Hiroyuki KODAMA , Takayuki YAMAMOTO , Yasuji MIZUTANI
Abstract: A brake control device adjusts a front wheel braking hydraulic pressure of front wheel cylinders 71, 72 provided on front wheels of a vehicle and a rear wheel braking hydraulic pressure of rear wheel cylinders 73, 74 provided on rear wheels of the vehicle. The brake control device includes a hydraulic pressure generating unit 1A configured to adjust a hydraulic pressure generated by an electric motor 11 to an adjusted hydraulic pressure and apply the adjusted hydraulic pressure as the rear wheel braking hydraulic pressure and a hydraulic pressure correcting unit 1B configured to adjust to decrease the adjusted hydraulic pressure to be a corrected hydraulic pressure, and apply the corrected hydraulic pressure as the front wheel braking hydraulic pressure.
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公开(公告)号：US20190084541A1
公开(公告)日：2019-03-21
申请号：US16135527
申请日：2018-09-19
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yusuke Sekine , Ryosuke Sakakibara , Jun Matsushima , Akira Omizu , Koji Masuda , Akira Sakai , Hideki Sugawa
Abstract: The reservoir tank includes a reservoir body which reserves a fluid in an inner portion thereof formed to be in a hollow box shape. The reservoir body includes a port extending outward, a reservoir chamber which reserves the fluid and a port chamber which volume is smaller than that of the reservoir chamber and is in fluid communication with the port and a first communication passage positioned at a portion lower than a changeable liquid surface of the fluid reserved in the reservoir chamber in a vertical direction and provided at the first partition portion to allow the fluid communication between the reservoir chamber and the port chamber and wherein the port chamber and the port are kept being a state in which they are filled with the fluid supplied from the reservoir chamber via the first communication passage.
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公开(公告)号：US10214193B2
公开(公告)日：2019-02-26
申请号：US15326153
申请日：2015-07-14
Applicant: ADVICS CO., LTD.
Inventor： Tomoyuki Yamaguchi
Abstract: This hydraulic braking device is provided with: a tubular cylinder; an assisting piston, which is housed in the cylinder so as to be able to move reciprocally, faces a reservoir formed inside the cylinder, and assists a master piston, in a master cylinder, that generates hydraulic pressure for generating a braking force by reciprocally moving from one side to the other as a result of a fluid flowing into the reservoir from a supply source; and a seal member, which is elastically deformable and which seals the reservoir. When the assisting piston is at a location on one side, the reservoir is compartmentalized into a first chamber that communicates with the supply source, and a second chamber that communicates with the first chamber through a restricting flow passage, and the seal member seals the second chamber.
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公开(公告)号：US10202110B2
公开(公告)日：2019-02-12
申请号：US15186667
申请日：2016-06-20
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , ADVICS CO., LTD.
Inventor： Katsuhiro Kanamori , Kazutaka Noro
Abstract: A hydraulic braking system includes: a master cylinder including a pressurizing piston, a rearward chamber, and a pressure chamber; and a rearward-hydraulic-pressure controller connected to the rearward chamber and including a pressure increase valve and a regulator for controlling a hydraulic pressure in an output chamber. An air detector includes: an upstream detector, including the rearward-hydraulic-pressure controller, for detecting presence or absence of air in an upstream portion based on a relationship between the hydraulic pressure in the output chamber and an open time of the pressure increase valve; and a downstream detector for detecting presence or absence of air in a downstream portion based on a relationship between a stroke of the pressurizing piston and the hydraulic pressure in the output chamber. The downstream portion includes a portion located downstream of the pressure chamber of the master cylinder.
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Patent Agency Ranking
公开(公告)号：US20190031168A1
公开(公告)日：2019-01-31
申请号：US16072053
申请日：2016-09-29
Applicant: ADVICS CO., LTD.
Inventor： Yoji INOUE
IPC: B60T13/573 , B60T13/569
Abstract: This negative-pressure type booster device improves operation feeling for a driver at the time of a sudden braking operation. A valve body is provided with a flange part which extends in the radially outward direction from a front section of the valve body, and a plate is provided with a locking part which comes into contact with the flange part so as to restrict a movement in the axially forward direction relative to the valve body.
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公开(公告)号：US20190023242A1
公开(公告)日：2019-01-24
申请号：US15773603
申请日：2016-11-24
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshimitsu OZEKI , Yusuke KAMIYA
Abstract: The braking device for a vehicle includes an operation judging portion which judges whether or not the operating amount in the increasing stage is equal to or more than a predetermined threshold amount or whether or not an increasing speed of the operating amount in the increasing stage is equal to or more than a predetermined threshold speed and a control portion which selects the first operating mode as the operating mode from a start of the increasing stage until a first timing or a second timing and selects the second operating mode as the operating mode in the increasing stage after the first timing or the second timing and at the same time maintains the drive hydraulic pressure in the increasing stage after the first timing or the second timing.
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公开(公告)号：US20190023240A1
公开(公告)日：2019-01-24
申请号：US16081156
申请日：2017-03-15
Applicant: ADVICS CO., LTD.
Inventor： Masayuki ASANO , Hiroyuki ANDO , Yukio MORI
IPC: B60T7/12 , B60T8/17 , B60W10/08 , B60W10/184
Abstract: A prediction unit predicts a limit time at which a limit request value corresponding to a minimum acceleration or torque is reached when a vehicle is decelerated with only a first deceleration control by a drive device based on change over time of a request value indicating a degree of longitudinal direction vehicle acceleration. A mode determination unit selects one of: a first mode in which only the first control is executed, and before the limit time is reached, in addition to the first control, a second deceleration control is started by a braking device; or a second mode in which only the first control is executed, and before the limit time is reached, in addition to the first control, a braking preparation control is started. A calculation unit calculates an operation amount of the drive and braking devices based on the request value in accordance with the determined mode.
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公开(公告)号：US10173656B2
公开(公告)日：2019-01-08
申请号：US15031979
申请日：2014-10-24
Applicant: ADVICS CO., LTD.
Inventor： Yoji Inoue
IPC: B60T13/569
Abstract: A movable diaphragm of a negative pressure type booster device includes an annular rubber diaphragm and an annular metal plate. The diaphragm is airtightly pinched by the housing at an annular outer peripheral bead portion formed at an outer peripheral edge of the diaphragm, and airtightly secured to an outer peripheral portion of a valve body, together with an inner peripheral portion of the plate, at an annular inner peripheral bead portion formed at an inner peripheral edge of the diaphragm. Between the outer peripheral bead portion and the inner peripheral bead portion, there are formed a folded portion having a curved portion toward the front and continuous with the outer peripheral bead portion at an outer peripheral area, and an annular portion continuous with an inner peripheral area of the folded portion and with the inner peripheral bead portion.
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公开(公告)号：US20180345925A1
公开(公告)日：2018-12-06
申请号：US15778455
申请日：2016-11-24
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masaki NINOYU , Takahiro OKANO , Masaaki KOMAZAWA
Abstract: The hydraulic pressure control device has an idle region, and is provided with a control portion, and a correcting portion which, in cases when the reaction time of the actual pressure to pressure increasing control or pressure decreasing control exceeds a predetermined threshold time, corrects a control current towards the side in which the flow-rate is increased. In cases when a judging portion has judged that the pressure increasing control is in the idle area, the correcting portion applies, as the threshold time, an idle threshold time set to a value different from the threshold time that in cases when the judging portion has not judged that the pressure increasing control is in the idle area. Furthermore, in cases when the reaction time of the actual pressure to the pressure increasing control exceeds the idle threshold time, the correcting portion corrects the control current.
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