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公开(公告)号：US20200180576A1
公开(公告)日：2020-06-11
申请号：US16638279
申请日：2018-08-28
Applicant: ADVICS CO., LTD.
Inventor： Koya MOTOYAMA , Hiroki SAITO , Masayuki NAITO
Abstract: A control device is provided with a flow rate derivation part for deriving a pressure-holding-valve flow rate on the basis of a pressure command value and a previous pressure command value; a differential pressure derivation part for deriving a differential-pressure-valve differential pressure value so that the differential-pressure-valve differential pressure value increases with an increase in the difference obtained by subtracting the pressure-holding-valve flow rate from a pump-discharge flow rate; and a pressure-holding-valve processing part for performing an aperture derivation process to derive a command aperture so that the command aperture decreases with an increase in the difference obtained by subtracting the pressure command value from the sum of an pressure value and the differential-pressure-valve differential pressure value, and driving a holding pressure valve at the command aperture.
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公开(公告)号：US20200079389A1
公开(公告)日：2020-03-12
申请号：US16484535
申请日：2018-02-23
Applicant: ADVICS CO., LTD.
Inventor： Masayuki ASANO , Yukio MORI , Tatsuya HIROMURA
IPC: B60W40/107 , B60W30/18 , B60W30/16 , B60W40/076
Abstract: This vehicle control device is provided with: a determination unit for determining whether proscribed conditions are satisfied, including the inability to determine that a longitudinal acceleration target value is fluctuating and the ability to determine that the longitudinal acceleration of a vehicle is fluctuating; and a cooperative control unit which, on the condition that it has been determined that the prescribed conditions are satisfied, performs a braking/driving cooperative process to hold a torque output from one of a driving torque generation device and a braking torque generation device at a value which is larger than the torque at the point in time at which the prescribed conditions were met, and adjusts the torque output from the other device through feedback control using the longitudinal acceleration target value and the longitudinal acceleration of the vehicle.
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公开(公告)号：US10583815B2
公开(公告)日：2020-03-10
申请号：US15763235
申请日：2016-09-28
Applicant: Advics Co., Ltd. , Toyota Jidosha Kabushiki Kaisha
Inventor： Masaki Ninoyu , Takahiro Okano
Abstract: The hydraulic pressure control device controls a valve part for adjusting the inflow/outflow of a fluid into and out of a hydraulic pressure chamber formed in a braking device to control the actual hydraulic pressure of the fluid in the hydraulic pressure chamber, to a target hydraulic pressure of the actual hydraulic pressure and includes a determination unit which determines whether a response delay time of the actual hydraulic pressure is equal to or greater than a prescribed permitted delay time and an inflow/outflow quantity correction unit which executes increase correction processing in which the valve part is controlled to increase the inflow/outflow quantity of the fluid in the hydraulic pressure chamber when the determination unit has determined that the response delay time is equal to or greater than the permitted delay time.
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公开(公告)号：US20200062229A1
公开(公告)日：2020-02-27
申请号：US16344641
申请日：2017-10-27
Applicant: ADVICS CO., LTD.
Inventor： Kei AMAMOTO
IPC: B60T8/76 , B60W10/188 , B60T8/1761 , B60T13/68
Abstract: A brake device includes a second setting unit that sets a target wheel deceleration of at least one of the wheels to which a target wheel brake force; detection units that detect the actual wheel deceleration of the wheel to which the target wheel deceleration; a first calculation unit that calculates a vehicle deceleration difference which is the difference between the target vehicle deceleration and the actual vehicle deceleration; a second calculation unit which calculates a wheel deceleration difference which is the difference between the target wheel deceleration and the actual wheel deceleration; and a correction unit which corrects, on the basis of the vehicle deceleration difference and the wheel deceleration difference, the target wheel brake force corresponding to at least one of the wheels to which the target wheel brake force is set so that the vehicle deceleration difference becomes smaller.
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公开(公告)号：US20190381982A1
公开(公告)日：2019-12-19
申请号：US16479105
申请日：2018-01-19
Applicant: ADVICS CO., LTD.
Inventor： Marshall BULL , Shun TSUKAMOTO
Abstract: This braking control device feeds by pressure a braking fluid from a master cylinder to a wheel cylinder, to generate a braking force in a wheel. The braking control device is provided with an input rod; an output rod; first and second electric motors; and first and second racks forming a differential mechanism. When the outputs of the first and second electric motors are controlled, the operation power of the input rod and the displacement of the output rod are controlled independently of each other. Here, in the second rack, the movement, in a backward direction, in response to decrease of a master cylinder fluid pressure is limited within a range of a predetermined displacement by means of two stoppers.
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Patent Agency Ranking
公开(公告)号：US10471944B2
公开(公告)日：2019-11-12
申请号：US15743515
申请日：2016-07-20
Applicant: Advics Co., Ltd. , Toyota Jidosha Kabushiki Kaisha
Inventor： Yusuke Kamiya , Takahiro Okano
IPC: B60T8/40 , B60T8/17 , B60T13/14 , B60T13/66 , B60T8/46 , B60T8/172 , B60T8/171 , B60T8/1761 , B60T8/1763 , B60T7/04 , B60T8/00 , B60T13/68
Abstract: A vehicle brake device provided with a hydraulic pressure generating portion, an actuator and a controlling portion which maintains a driving force of the driving portion when a control subject pressure in a control subject chamber is within a dead zone, wherein the control subject pressure varies in response to a variation of the master pressure and a pulsation is generated in the master pressure accompanying an operation of the actuator. The vehicle brake device further includes a rigidity information obtaining portion which obtains a rigidity information and a dead zone setting portion which sets the dead zone based on the rigidity information obtained by the rigidity information obtaining portion such that the higher the rigidity of the control subject chamber, or the higher the probability of rigidity increase of the control subject chamber, the wider the dead zone is set.
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公开(公告)号：US20190329752A1
公开(公告)日：2019-10-31
申请号：US16467771
申请日：2017-12-15
Applicant: ADVICS CO., LTD.
Inventor： Takayuki WAZAKI , Shinichiro YUKOKU
Abstract: An electrically operated brake device includes an electric motor pressing friction member against a rotating member, and a returning mechanism moving the friction member in a direction away from the rotating member when the electric motor is not energized. The returning mechanism includes a spiral spring and a housing. The spiral spring includes a restraint section. The housing includes a holding surface. When the electric motor is rotated in a forward direction, the restraint section presses the holding surface, and the spiral spring gives a returning torque in a reverse direction. When the returning torque exceeds a predetermined torque, the restraint section slips out of the holding surface. The holding surface is inclined with respect to a normal line surface including a contact part between the restraint section and the holding surface and an axis line of the rotating shaft.
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公开(公告)号：US20190309813A1
公开(公告)日：2019-10-10
申请号：US16470829
申请日：2017-12-21
Applicant: ADVICS CO., LTD.
Inventor： Tadashi ISSHIKI
IPC: F16D66/02 , F16D65/092 , F16D55/22 , F16B2/24
Abstract: This brake pad assembly is, for example, equipped with: a brake pad that includes a lining and a back plate; a detection unit attached to the plate and detects abrasion of the lining; and a retainer for attaching the unit to the plate in a detachable manner. The retainer has: a base part that contacts a surface of the plate; a first holding part that holds the retainer in a prescribed position on the plate; a second holding part provided so as to be movable between a restricting position in which the unit is restricted from separating from the plate, and a release position in which the unit can be detached from the plate; a biasing part that elastically biases the second holding part toward the restricting position; and an operation part that moves the second holding part to the release position by means of an applied external force.
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公开(公告)号：US10415661B2
公开(公告)日：2019-09-17
申请号：US15580165
申请日：2016-06-20
Applicant: ADVICS CO., LTD.
Inventor： Masaaki Kobayashi , Toshiki Hotta , Masahiro Takezaki
Abstract: Provided is a non-asbestos friction material comprising: base fiber; a binder; a lubricant; an inorganic friction modifier; a pH adjuster; and a filler as compounded materials, wherein at least one of the filler and the inorganic friction modifier is only coated with at least one of a fatty acid and a metal soap.
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公开(公告)号：US20190219114A1
公开(公告)日：2019-07-18
申请号：US16337157
申请日：2017-09-20
Applicant: ADVICS CO., LTD.
Inventor： Naoya MIYAHARA
IPC: F16D65/097 , F16D55/228
CPC classification number: F16D65/0972 , F16D55/228 , F16D65/02 , F16D65/092 , F16D65/097 , F16D65/0974
Abstract: A brake pad is incorporated into a caliper so as to be movable in the axial direction of a rotor and rotatable around a rotation axis; a piston which presses the brake pad toward a disk rotor; and biasing members which bias the brake pad in order to hold the brake pad, wherein: the brake pad has contact sections, which are sections contacting the biasing members; the contacting sections have contact planes coinciding with virtual planes including the rotation axis of the brake pad; and the biasing members bias the contact planes in a direction perpendicular to the contact planes.
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