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公开(公告)号：US10940844B2
公开(公告)日：2021-03-09
申请号：US16335410
申请日：2017-09-07
Applicant: ADVICS CO., LTD.
Inventor： Tatsushi Kobayashi , Takayuki Yamamoto , Yasuhito Ishida
Abstract: The vehicular brake device includes a determination unit, a ratio setting unit, and the control unit. The determination unit determines the operating condition of a vehicular brake device. The ratio setting unit sets, on the basis of the result of determination by the determination unit, a first ratio which is the ratio of a wheel pressure generated by a piston drive unit to a target wheel pressure, and a second ratio which is the ratio of a wheel pressure generated by a hydraulic pressure adjusting unit to the target wheel pressure. The control unit controls the piston drive unit and the hydraulic pressure adjusting unit on the basis of the first ratio and the second ratio.
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公开(公告)号：US20200039490A1
公开(公告)日：2020-02-06
申请号：US16335410
申请日：2017-09-07
Applicant: ADVICS CO., LTD.
Inventor： Tatsushi Kobayashi , Takayuki Yamamoto , Yasuhito Ishida
Abstract: The vehicular brake device includes a determination unit, a ratio setting unit, and the control unit. The determination unit determines the operating condition of a vehicular brake device. The ratio setting unit sets, on the basis of the result of determination by the determination unit, a first ratio which is the ratio of a wheel pressure generated by a piston drive unit to a target wheel pressure, and a second ratio which is the ratio of a wheel pressure generated by a hydraulic pressure adjusting unit to the target wheel pressure. The control unit controls the piston drive unit and the hydraulic pressure adjusting unit on the basis of the first ratio and the second ratio.
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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：US11117558B2
公开(公告)日：2021-09-14
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：US20170021815A1
公开(公告)日：2017-01-26
申请号：US15216223
申请日：2016-07-21
Applicant: DENSO CORPORATION , ADVICS CO., LTD.
Inventor： Kiyohito Takeuchi , Tatsushi Kobayashi , Aritomo Nabeta
CPC classification number: B60T13/662 , B60T7/042 , B60T8/4872 , B60T13/146 , B60T2201/03
Abstract: A vehicle-use brake apparatus has a control unit which includes a correcting pressure acquisition section that acquires a flow rate correcting pressure corresponding to a discharge amount of brake fluid discharged by a pump, a command differential pressure acquisition section that acquires a command differential pressure by performing a flow rate correction where the flow rate correcting pressure is subtracted from a target wheel cylinder pressure, and a correction restriction section that performs a correction restriction by which the flow rate correcting pressure is reduced or the flow rate correction is not performed if an actual wheel cylinder pressure is smaller than a target wheel cylinder pressure.
Abstract translation: 车辆用制动装置具有控制单元，该控制单元包括校正压力获取部，其获取与由泵排出的制动液的排出量对应的流量校正压力，指令压差获取部，其通过以下步骤获取指令压差： 执行从目标轮缸压力减去流量校正压力的流量校正，以及执行校正限制的校正限制部分，其执行校正限制，如果实际的，实际上执行了流量校正压力或不执行流量校正 轮缸压力小于目标轮缸压力。
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Patent Agency Ranking
公开(公告)号：US11364890B2
公开(公告)日：2022-06-21
申请号：US16086891
申请日：2017-03-28
Applicant: ADVICS CO., LTD.
Inventor： Yasuhito Ishida , Tatsushi Kobayashi , Takayuki Yamamoto
IPC: B60T13/68 , B60T7/04 , B60T8/40 , B60W10/192 , B60W10/188 , B60T8/17 , B60T13/66
Abstract: A braking device includes: a reservoir; a master cylinder in which when the amount of operation performed on a brake pedal reaches or exceeds a predetermined amount, a port communicating between a pressure chamber and the reservoir is cut off and hydraulic pressure corresponding to the brake pedal operation amount is generated; a hydraulic pressure unit for adjusting the wheel cylinder hydraulic pressure; and a control unit for controlling the hydraulic pressure unit. The control unit determines, based on a temperature-related value related to the temperature of a friction member pressed by the wheel cylinder hydraulic pressure against a rotating member fixed to a wheel, whether the friction member is in a fade state. When the friction member is in a fade state, the control unit controls the hydraulic pressure unit to suction brake fluid from the reservoir through the port, and is fed to the wheel cylinder.
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公开(公告)号：US11155254B2
公开(公告)日：2021-10-26
申请号：US16339035
申请日：2017-10-04
Applicant: ADVICS CO., LTD.
Inventor： Kunihiro Nishiwaki , Takayuki Yamamoto , Yasuhito Ishida , Tatsushi Kobayashi
Abstract: A braking device includes a stroke simulator, a hydraulic pressure generation unit, a reaction hydraulic pressure detection unit, a master hydraulic pressure detection unit, and a bottoming determination unit. The stroke simulator includes a cylinder and a piston slidably movable inside the cylinder in conjunction with an operation of a brake operation member. The stroke simulator causes a reaction force chamber to generate a reaction hydraulic pressure and applies a reaction force. The hydraulic pressure generation unit generates a master hydraulic pressure by driving a master piston and supplies a hydraulic pressure to a wheel cylinder. The reaction hydraulic pressure detection unit detects the reaction hydraulic pressure. The master hydraulic pressure detection unit detects the master hydraulic pressure. The bottoming determination unit determines whether the master piston is in a bottoming state based on the reaction hydraulic pressure and the master hydraulic pressure.
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公开(公告)号：US20200039494A1
公开(公告)日：2020-02-06
申请号：US16339035
申请日：2017-10-04
Applicant: ADVICS CO., LTD.
Inventor： Kunihiro Nishiwaki , Takayuki Yamamoto , Yasuhito Ishida , Tatsushi Kobayashi
Abstract: A braking device includes a stroke simulator, a hydraulic pressure generation unit, a reaction hydraulic pressure detection unit, a master hydraulic pressure detection unit, and a bottoming determination unit. The stroke simulator includes a cylinder and a piston slidably movable inside the cylinder in conjunction with an operation of a brake operation member. The stroke simulator causes a reaction force chamber to generate a reaction hydraulic pressure and applies a reaction force. The hydraulic pressure generation unit generates a master hydraulic pressure by driving a master piston and supplies a hydraulic pressure to a wheel cylinder. The reaction hydraulic pressure detection unit detects the reaction hydraulic pressure. The master hydraulic pressure detection unit detects the master hydraulic pressure. The bottoming determination unit determines whether the master piston is in a bottoming state based on the reaction hydraulic pressure and the master hydraulic pressure.
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公开(公告)号：US09868429B2
公开(公告)日：2018-01-16
申请号：US15216223
申请日：2016-07-21
Applicant: DENSO CORPORATION , ADVICS CO., LTD.
Inventor： Kiyohito Takeuchi , Tatsushi Kobayashi , Aritomo Nabeta
CPC classification number: B60T13/662 , B60T7/042 , B60T8/4872 , B60T13/146 , B60T2201/03
Abstract: A vehicle-use brake apparatus has a control unit which includes a correcting pressure acquisition section that acquires a flow rate correcting pressure corresponding to a discharge amount of brake fluid discharged by a pump, a command differential pressure acquisition section that acquires a command differential pressure by performing a flow rate correction where the flow rate correcting pressure is subtracted from a target wheel cylinder pressure, and a correction restriction section that performs a correction restriction by which the flow rate correcting pressure is reduced or the flow rate correction is not performed if an actual wheel cylinder pressure is smaller than a target wheel cylinder pressure.
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公开(公告)号：US09656644B2
公开(公告)日：2017-05-23
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 , Kiyoyuki Uchida
IPC: F15B7/00 , B60T11/16 , B60T11/10 , B60T7/04 , B60T13/66 , B60T13/68 , B60T8/32 , B60T8/40 , B60T11/20
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.
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