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公开(公告)号：US20180029576A1
公开(公告)日：2018-02-01
申请号：US15549433
申请日：2016-01-29
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Tatsushi KOBAYASHI , Masaaki KOMAZAWA , Yusuke KAMIYA
CPC classification number: B60T8/88 , B60T8/17 , B60T8/363 , B60T8/4077 , B60T8/44 , B60T8/48 , B60T8/94 , B60T17/18 , B60T17/221 , B60T2270/404 , B60T2270/82
Abstract: Provided is a brake device capable of detecting abnormality condition of a subject valve without using a wheel pressure sensor and the vehicle brake device includes a valve which is configured to open and close a fluid passage connected to the master chamber and at the same time which is a subject valve for a subject of failure judgement and an abnormality judging portion which is configured to judge whether or not the subject valve is in an abnormal state based on an advancement amount of the master piston accompanying an opening of the subject valve.
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公开(公告)号：US20210067370A1
公开(公告)日：2021-03-04
申请号：US16644198
申请日：2018-09-28
Applicant: ADVICS CO., LTD.
Inventor： Ryosuke ENDO , Takayuki YAMAMOTO , Tomotaka ASANO , Tatsushi KOBAYASHI , Jun NOMURA
Abstract: The present invention comprises: a first control device and a second control device that control the operation of a vehicle; a start signal output unit that outputs a start signal to the first control device and the second control device if the vehicle is in a prescribed state; an input detection unit that detects the input of the start signal to the first control device and the second control device in the state in which the start signal has been output to the first control device and the second control device by the start signal output unit; and pause signal output units that output a pause signal to the first control device and the second control device if the state in which the start signal input has been detected by the input detection unit has continued for at least a prescribed amount of time.
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公开(公告)号：US20200290576A1
公开(公告)日：2020-09-17
申请号：US16759381
申请日：2018-11-06
Applicant: ADVICS CO., LTD.
Inventor： Tatsushi KOBAYASHI , Tomotaka ASANO , Yasuhito ISHIDA , Ryosuke ENDO , Takayuki YAMAMOTO
Abstract: A vehicle brake device includes a stroke simulator, a stroke sensor, and a brake start determination unit. The stroke simulator includes a cylinder, a piston, an orifice, and a pressure sensor. The cylinder defines a liquid pressure chamber to which a brake liquid is supplied via a fluid path. The piston slides in the cylinder by the brake liquid supplied to the liquid pressure chamber. The orifice is formed in the fluid path. The pressure sensor detects a reaction pressure. The stroke sensor is configured to detect the stroke. The brake start determination unit determines an operation of the brake operation member has been started in a case where the reaction pressure detected by the pressure sensor becomes equal to or greater than a first threshold value and the stroke detected by the stroke sensor becomes equal to or greater than a second threshold value.
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公开(公告)号：US20210122339A1
公开(公告)日：2021-04-29
申请号：US16645114
申请日：2018-09-28
Applicant: ADVICS CO., LTD.
Inventor： Ken KUZUYA , Tomotaka ASANO , Yasuhito ISHIDA , Tatsushi KOBAYASHI , Takayuki YAMAMOTO
Abstract: This vehicle brake device comprises: a simultaneous driving determination section which determines whether it is necessary to simultaneously drive an upstream-side motor and a downstream-side motor; and a PWM control section which, when the determination result by the simultaneous driving determination section is in the affirmative, changes the duty ratio of the PWM signal to be output to the upstream-side motor so as to be smaller than when the determination result by the simultaneous driving determination section is in the negative, and uses PWM control to drive the upstream-side motor.
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公开(公告)号：US20150321652A1
公开(公告)日：2015-11-12
申请号：US14397313
申请日：2013-04-26
Applicant: ADVICS CO., LTD.
Inventor： Masaki MARUYAMA , Kazutaka NORO , Tatsushi KOBAYASHI , Yasunori SAKATA , Akitaka NISHIO , Masaaki KOMAZAWA , Yusuke KAMIYA , Kiyoki UCHIDA
CPC classification number: B60T11/16 , B60T7/042 , B60T8/3265 , B60T8/4077 , B60T11/103 , B60T11/20 , B60T13/662 , B60T13/686
Abstract: The braking control device for controlling a master cylinder device includes a housing, an output piston, an input piston, a separation chamber opening and closing portion, and a driving hydraulic pressure generating portion, and is provided with an operation control for controlling the master cylinder device in an operation force operating state (regulator mode) in which the output piston is driven by operation force on a brake operation member and in a driving hydraulic pressure operating state (linear mode) in which the output piston is driven by driving hydraulic pressure from the driving hydraulic pressure generating portion; a brake operation judgment portion for judging the presence or absence of a brake operation and the probability thereof and a state transition limiter for limiting at least one of state transitions between the operating states when the presence of the brake operation and possibility thereof is determined.
Abstract translation: 用于控制主缸装置的制动控制装置包括壳体，输出活塞，输入活塞，分离室打开和关闭部分以及驱动液压产生部分，并且设置有用于控制主缸的操作控制 装置，其中输出活塞由制动操作构件上的操作力驱动的操作力操作状态（调节器模式）和驱动液压操作状态（线性模式）中，其中通过驱动液压来驱动输出活塞 驱动液压产生部; 用于判断制动操作的存在或不存在的制动操作判断部分及其概率，以及当确定制动操作及其可能性的存在时，限制操作状态之间的状态转换中的至少一个的状态转移限制器。
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Patent Agency Ranking
公开(公告)号：US20220281424A1
公开(公告)日：2022-09-08
申请号：US17586115
申请日：2022-01-27
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , ADVICS CO., LTD.
Inventor： Misuzu SHIMAZAKI , Yusuke KAMIYA , Tatsushi KOBAYASHI
IPC: B60T8/171 , B60T8/34 , B60W30/06 , B60W10/188
Abstract: A vehicle control system includes a brake mechanism and a first power source. The brake mechanism includes: a hydraulic brake provided for a vehicle wheel to suppress rotation of the wheel in accordance with a hydraulic pressure; a hydraulic pressure supply device including a high-pressure source that supplies a high hydraulic pressure, and first and second electromagnetic valves, to supply the hydraulic pressure to the hydraulic brake by controlling the first electromagnetic valve using the hydraulic pressure; and a control device that performs drive assist control by controlling the hydraulic pressure supply device. The first power source supplies power to the brake mechanism. The control device supplies a current to a solenoid of the first electromagnetic valve while suspending supply of a current to a solenoid of the second electromagnetic valve when a voltage of the first power source is lower than a set voltage during the drive assist control.
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公开(公告)号：US20210362698A1
公开(公告)日：2021-11-25
申请号：US16644004
申请日：2018-09-05
Applicant: ADVICS CO., LTD.
Inventor： Yasuhito ISHIDA , Kunihiro NISHIWAKI , Tatsushi KOBAYASHI , Tomotaka ASANO , Ken KUZUYA , Takayuki YAMAMOTO
Abstract: A braking control device includes an upstream mechanism control unit, a determination unit, and a control unit. The upstream mechanism control unit is configured to feedback control the upstream mechanism in such a manner that a detected hydraulic pressure detected by a hydraulic pressure sensor is brought to an upstream target hydraulic pressure. The hydraulic pressure sensor detects a hydraulic pressure of the hydraulic pressure circuit. The determination unit is configured to determine, based on the detected hydraulic pressure by the hydraulic pressure sensor, whether hydraulic pressure hunting is occurring. The control unit is configured to control the downstream mechanism based on the upstream target hydraulic pressure and the target wheel pressure in a case where the determination unit determines that the hydraulic pressure hunting is occurring.
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公开(公告)号：US20180244253A1
公开(公告)日：2018-08-30
申请号：US15754351
申请日：2016-08-25
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Tatsushi KOBAYASHI , Takahiro OKANO
CPC classification number: B60T17/221 , B60T7/042 , B60T8/00 , B60T8/17 , B60T8/171 , B60T8/172 , B60T8/4077 , B60T8/885 , B60T8/94 , B60T8/96 , B60T13/146 , B60T13/662 , B60T17/22 , B60T2220/04 , B60T2270/40 , B60T2270/413
Abstract: An abnormality detection device includes a control target hydraulic pressure calculating portion that calculates a control target hydraulic pressure according to an operation state of a brake pedal, the hydraulic pressure obtaining portion that obtains the hydraulic pressure of the operating fluid controlled to become the control target hydraulic pressure calculated by the control target hydraulic pressure calculating portion from the pressure sensor; a second determination threshold value changing portion that changes a threshold value to be closer to the control target hydraulic pressure calculated by the control target hydraulic pressure calculating portion in a stepwise manner when a state determining portion determines that the control target hydraulic pressure is in a maintaining state, and the abnormality determining portion that determines the hydraulic pressure braking force generating device is abnormal when the hydraulic pressure obtained by the hydraulic pressure obtaining portion deviates from the permissible divergence range.
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公开(公告)号：US20220194351A1
公开(公告)日：2022-06-23
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
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：US20210016755A1
公开(公告)日：2021-01-21
申请号：US16980113
申请日：2019-03-28
Applicant: ADVICS CO., LTD.
Inventor： Kunihiro NISHIWAKI , Jun NOMURA , Yasuhito ISHIDA , Tatsushi KOBAYASHI
Abstract: The present disclosure comprises a reservoir cutoff valve provided on a pipe and configured to be opened in a non-energization state; a simulator cutoff valve provided on a pipe and configured to be closed in a non-energization state; an operation determination circuit configured to determine whether the brake operation member is in an operation execution state in which the brake operation member is being operated is; and a current control circuit that, when the operation determination circuit determines that the brake operation member is not in an operation execution state, supplies a first current to the reservoir cutoff valve, and when the operation determination circuit determines that the brake operation member is in an operation execution state, supplies a second current greater than the first current to the reservoir cutoff valve.
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