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公开(公告)号：US11932218B2
公开(公告)日：2024-03-19
申请号：US17645365
申请日：2021-12-21
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , ADVICS CO., LTD.
Inventor： Takahiro Okano , Yusuke Kamiya , Tatsushi Kobayashi , Shimpei Kodani
IPC: B60T17/22 , B60T7/04 , B60T8/171 , B60T8/172 , B60T8/40 , B60T8/88 , B60T8/94 , B60T8/96 , B60T13/14 , B60T13/66
CPC classification number: B60T17/221 , B60T7/042 , B60T8/171 , B60T8/172 , B60T8/4077 , B60T8/885 , B60T8/94 , B60T8/96 , B60T13/146 , B60T13/662 , B60T2220/04 , B60T2270/413
Abstract: A vehicle brake system, including: a first-braking-force control mechanism configured to control a first braking force, a second-braking-force control mechanism configured to control a second braking force, an abnormal-state detecting device configured to detect whether the first-braking-force control mechanism is in an abnormal state, a pseudo-abnormal-state detecting device configured to detect whether the first-braking-force control mechanism is in a pseudo abnormal state in which the first-braking-force control mechanism is suspected to be in the abnormal state, and a controller including a pseudo abnormal state controller configured to control the second-braking-force control mechanism in an operating state of the first-braking-force control mechanism so as to control the second braking force when the pseudo-abnormal-state detecting device detects that the first-braking-force control mechanism is in the pseudo abnormal state.
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公开(公告)号：US10549735B2
公开(公告)日：2020-02-04
申请号：US15759721
申请日：2016-09-29
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masaki Ninoyu , Takahiro Okano
Abstract: A hydraulic pressure braking force generation device is provided with a first control unit for performing control for inhibiting excessive responses in which the input pressure is controlled such that the output pressure is within a first region set using a braking target oil pressure as a reference, a second control unit for performing control for responsiveness in which the increase speed or decrease speed of the input pressure is increased so as to be larger than that in the control for inhibiting excessive responses, to cancel response delay and a switching unit which, on the basis of the state of the braking target oil pressure, switches between the control for inhibiting excessive responses performed by the first control unit and the control for responsiveness performed by the second control unit.
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公开(公告)号：US10549641B2
公开(公告)日：2020-02-04
申请号：US15758553
申请日：2016-09-28
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takahiro Okano , Daisuke Nakata
Abstract: A braking device for a vehicle includes a friction brake device, a regeneration bake device, a control portion which controls the friction braking force and the regeneration braking force through a cooperative control and a state judging portion which judges whether a vehicle state is in a stopped state or a non-braking operation state where the braking operation is not performed, The control portion executes a factor change control which suppresses an increase of change inclination of the friction braking force by changing a factor relating to a friction used when the hydraulic pressure is converted into the friction braking force to an increasing side and returns the factor to a value at a non-operation of the factor change control when the vehicle state is judged to be in the stopped state or the non-braking operation state by the state judging portion.
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公开(公告)号：US10065619B2
公开(公告)日：2018-09-04
申请号：US15114798
申请日：2014-12-25
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masaki Ninoyu , Takahiro Okano , Yusuke Kamiya , Daisuke Nakata , Masaaki Komazawa
Abstract: A vehicle control device which is applicable to a vehicle brake device, controls the pressure increasing control valve and the pressure-decreasing control valve so that an actual servo pressure detected by the servo pressure sensor becomes a target servo pressure; and controls so as to increase the target servo pressure by a predetermined amount, while the brake actuator is executing the braking control which accompanies a brake fluid pumping back control wherein the brake fluid supplied to the wheel cylinder is pumped back to the master cylinder by the built-in pump.
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公开(公告)号：US09937911B2
公开(公告)日：2018-04-10
申请号：US15112846
申请日：2015-01-29
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masaki Ninoyu , Takahiro Okano , Yusuke Kamiya , Daisuke Nakata , Masaaki Komazawa
CPC classification number: B60T13/662 , B60T7/042 , B60T8/17616 , B60T8/4077 , B60T13/146 , B60T13/147 , B60T13/686
Abstract: A vehicle control device which is applicable to a vehicle brake device, controls the pressure increasing control valve and the pressure decreasing control valve so that an actual servo pressure detected by the servo pressure sensor becomes a target servo pressure and sets a control dead zone in which a control of the pressure increasing control valve and the pressure decreasing control valve is prohibited to be an area which has a first predetermined width from the target servo pressure when a normal braking operation is performed and sets the control dead zone to be an area which has a second predetermined width, wider than the first predetermined width when the brake actuator executes the braking control which accompanies a brake fluid pumping back control, wherein the brake fluid supplied to the wheel cylinder is returned to the master cylinder by pumping back operation of the built-in pump.
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Patent Agency Ranking
公开(公告)号：US09663086B2
公开(公告)日：2017-05-30
申请号：US14897261
申请日：2014-06-17
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshimitsu Ozeki , Hiroaki Niino , Takahiro Okano , Masaaki Komazawa , Kiyoyuki Uchida
CPC classification number: B60T13/146 , B60T7/042 , B60T8/4077 , B60T8/4081 , B60T13/662 , B60T13/686
Abstract: The vehicular brake device according to the present invention is provided with a first flow passage connecting a first electromagnetic valve and a wheel cylinder, a second flow passage connecting a reservoir portion capable of storing brake fluid and the first flow passage and a second electromagnetic valve disposed in the second flow passage. A pressure differential generating portion generates a predetermined pressure differential by moving a master piston by a drive pressure generating portion after an execution of an advancement control to advance the master piston so that the stroke position of the master piston is within an advanced side area. A second electromagnetic valve control portion places the second electromagnetic valve in an open state for a period including at least a portion of the period of time in an execution period of the advancement control.
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公开(公告)号：US09446749B2
公开(公告)日：2016-09-20
申请号：US14430862
申请日：2013-10-21
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takahiro Okano , Kiyohito Takeuchi , Yusuke Kamiya , Masaaki Komazawa
IPC: B60T13/122 , B60T11/16 , B60T1/10 , B60T13/14 , B60T8/40 , B60L7/18 , B60T8/172 , B60T7/04 , B60T13/66 , B60T13/68
CPC classification number: B60T11/16 , B60L7/18 , B60T1/10 , B60T7/042 , B60T8/172 , B60T8/4077 , B60T13/146 , B60T13/147 , B60T13/662 , B60T13/686 , B60T2270/604
Abstract: The brake ECU applies the target braking force by controlling the hydraulic pressure braking force generating device and the regeneration braking force generating device and the brake ECU further controls the advance speed of the output piston so that a drawn-into of a brake operating member can be prevented upon supplying the wheel cylinders from the master cylinder with the brake fluid by advancing the output piston thereby to improve the brake operating feeling of the brake operating member by preventing the brake operating member from being drawn into.
Abstract translation: 制动ECU通过控制液压制动力产生装置和再生制动力产生装置来施加目标制动力，并且制动ECU进一步控制输出活塞的提前速度，使得制动操作构件的拉入可以 在通过使输出活塞前进的同时通过使输出活塞前进而从主缸与主缸一起向制动液供给轮缸，从而通过防止制动操作构件被吸入来改善制动操作构件的制动操作感。
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公开(公告)号：US20150107241A1
公开(公告)日：2015-04-23
申请号：US14407004
申请日：2013-06-20
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , ADVICS CO., LTD.
Inventor： Takahiro Okano , Yusuke Kamiya , Kiyohito Takeuchi
IPC: B60T8/171 , F15B13/044
CPC classification number: B60T8/171 , B60T7/042 , B60T8/367 , B60T8/4077 , B60T13/662 , B60T13/686 , F15B13/044
Abstract: A hydraulic brake system is configured such that a pressure of a working fluid from a high-pressure-source device is adjusted by electromagnetic pressure-increase and pressure-decrease linear valves and such that a brake device generates a braking force having a magnitude that depends on the pressure adjusted by the linear valves, wherein the following controls are selectively executable, as a control of the energizing currents supplied to the linear valves, a feedback control based on a difference between an actual braking-force index and a target braking-force index; and a feedforward control based on the target braking-force index executed by placing each valve in a valve equilibrium state, wherein, in the feedforward control, an energizing current is supplied to at least one of the two linear valves, the energizing current being larger than that according to a preset relationship between a braking-force index and an energizing current in the valve equilibrium state.
Abstract translation: 液压制动系统被构造成使得来自高压源装置的工作流体的压力通过电磁增压和减压直线阀调节，并且使得制动装置产生具有取决于 在通过线性阀调节的压力下，其中可选择地执行以下控制作为对提供给线性阀的通电电流的控制，基于实际制动力指数和目标制动力之间的差异的反馈控制 指数; 以及基于通过将各阀门置于阀平衡状态而执行的目标制动力指标的前馈控制，其中，在所述前馈控制中，向所述两个直线阀中的至少一个供给通电电流，所述通电电流较大 比根据制动力指数和阀平衡状态中的通电电流之间的预设关系。
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公开(公告)号：US10569754B2
公开(公告)日：2020-02-25
申请号：US15778948
申请日：2016-11-25
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masaki Ninoyu , Takahiro Okano
Abstract: A valve control device includes a correction unit that corrects hysteresis in output of a control valve according to an increasing/reducing direction of a control output value; a detection unit configured to detect an actual output value to the control valve corresponding to the control output value; and a forbidding unit configured to forbid correction by the correction unit, until a difference between the control output value and the actual output value becomes within a predetermined range, after the increasing/reducing direction of the control output value is switched.
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公开(公告)号：US20180319383A1
公开(公告)日：2018-11-08
申请号：US15773827
申请日：2016-11-25
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takahiro Okano , Daisuke Nakata
IPC: B60T8/1755 , B60T8/172 , B60T7/04
CPC classification number: B60T8/17551 , B60T7/042 , B60T8/00 , B60T8/17 , B60T8/172 , B60T8/4077 , B60T13/146 , B60T13/147 , B60T13/662 , B60T13/686 , B60T2220/04 , B61H1/00
Abstract: The vehicle braking device performs a control which makes an actual value of physical quantity associated with a braking force follow a target value thereof when the actual value is outside a dead zone and a control which suppresses a change of the actual value when the actual value is within the dead zone and includes a judging portion which judges whether or not the actual value passes through the dead zone with a value beyond the upper limit threshold value and a setting portion which sets a second upper limit threshold value more closely approximated than a first upper limit threshold value when the actual value is judged not to pass through the dead zone, as the upper limit threshold value, when the actual value is judged to pass through the dead zone by the judging portion.
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