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公开(公告)号：US12194977B2
公开(公告)日：2025-01-14
申请号：US17595266
申请日：2020-05-18
Applicant: ADVICS CO., LTD.
Inventor： Osayoshi Kato , Yoshio Masuda
Abstract: A brake control device includes a brake operation member, a pressurization unit, a master cylinder unit, a connection path connecting a separation chamber and a reaction force chamber, an electromagnetic valve at the connection path, and a control device. The control device includes a specified control section configured to, when the brake operation member is operated in a closed state of the electromagnetic valve, execute activation-time control in which the pressurization unit supplies fluid to a servo chamber based on a predetermined pattern, a determination section configured to determine whether a pressure difference between pressure in the reaction force chamber and pressure in the separation chamber, is equal to or less than a threshold value, and a valve control section configured to open the electromagnetic valve when the determination section determines the pressure difference is equal to or less than the threshold value after start of the activation-time control.
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公开(公告)号：US10029662B2
公开(公告)日：2018-07-24
申请号：US15128206
申请日：2015-01-08
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masaki Ninoyu , Takahiro Okano , Yoshio Masuda , Daisuke Nakata
Abstract: A vehicle brake device includes a pressure adjusting device wherein as the volume of a pilot chamber is changed by the movement of a piston and the flow rate of liquid flowing in and out of the pilot chamber increases, the amount of movement of the piston increases with reference to the piston position in an equilibrium state where the force corresponding to the pilot pressure and the force corresponding to the output pressure are balanced, whereby the flow rate of the liquid flowing in and out of an output chamber increases. A control device, when judged by a limitation necessity judging portion that the gradient of output pressure should be limited, implements at least one of pressure increasing gradient limit control for opening a pressure decreasing electromagnetic valve under pressure increasing control, or pressure decreasing gradient limit control for opening a pressure increasing electromagnetic valve under pressure decreasing control.
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公开(公告)号：US09163645B2
公开(公告)日：2015-10-20
申请号：US14238991
申请日：2013-03-22
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masaki Maruyama , Yoshio Masuda , Akitaka Nishio , Akira Sakai , Yasuji Mizutani , Kiyoyuki Uchida , Masaaki Komazawa , Yusuke Kamiya
CPC classification number: F15B13/02 , B60T8/172 , B60T8/3265 , B60T8/3275 , B60T8/4077 , B60T8/4081 , B60T17/18 , B60T2201/03
Abstract: A vehicle brake system includes a cylinder, a master piston including a pressure applying piston and a projection portion, a servo chamber, a contact/separation determining means determining a separated state and a contact state between the input piston and the master piston, a pilot pressure generating device generating a pilot pressure, a servo pressure generating device, a servo pressure measuring device measuring a servo pressure, and a master pressure estimating means estimating a master pressure from the pilot pressure and a first servo ratio, which is a cross-sectional area ratio between a first pilot chamber and a servo pressure generating chamber, in a case of the separated state, and estimating the master pressure based on the servo pressure, the pilot pressure and a second servo ratio, which is a cross-sectional area ratio between a second pilot chamber and the servo pressure generating chamber, in a case of the contact state.
Abstract translation: 一种车辆制动系统，包括：缸体，包括加压活塞和突出部分的主活塞;伺服室;确定分离状态的接触/分离确定装置和输入活塞与主活塞之间的接触状态; 产生先导压力的压力产生装置，伺服压力产生装置，测量伺服压力的伺服压力测量装置以及从先导压力估计主压力的主压力估计装置和作为横截面的第一伺服比 在分离状态的情况下，第一导向室和伺服压力发生室之间的面积比，并且基于作为横截面积比的伺服压力，先导压力和第二伺服比来估计主压力 在第二导向室和伺服压力产生室之间，在接触状态的情况下。
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公开(公告)号：US20150203088A1
公开(公告)日：2015-07-23
申请号：US14410976
申请日：2013-06-25
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yosuke Kuki , Yoshio Masuda , Hiroaki Niino , Kiyoyuki Uchida , Masaaki Komazawa , Akira Sakai , Yasuji Mizutani , Yusuke Kamiya
CPC classification number: B60T15/028 , B60T7/042 , B60T8/4077 , B60T13/145 , B60T13/662 , B60T13/686
Abstract: The vehicle braking control device adapted to a vehicle brake device having an electromagnetic valve which controls the brake fluid flow between the master cylinder and the wheel cylinders in response to the input electric energy. The vehicle braking control device includes a valve opening electric energy obtaining portion which obtains an input electric energy upon opening of the electromagnetic valve as a valve opening electric energy and an operation characteristic setting portion which sets an operation characteristic based on the valve opening electric energy obtained corresponding to the predetermined pressure differential. The opening valve electric energy obtaining portion changes the input electric energy at a valve closing side or a valve opening side with a change amount per unit of time larger than before valve opening in response to an obtaining of the valve opening electric energy.
Abstract translation: 车辆制动控制装置适用于具有电磁阀的车辆制动装置，该电磁阀响应于输入的电能来控制主缸和轮缸之间的制动液流动。 车辆制动控制装置包括：开阀电能获取部，其在打开电磁阀时获取输入电能作为开阀电力;以及操作特性设定部，其基于获得的开阀电力设定运转特性 对应于预定的压力差。 打开阀电能获取部分响应于获得阀打开电能而改变在关闭侧或阀打开侧的输入电能，其单位时间的变化量大于阀打开之前的变化量。
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公开(公告)号：US20140250883A1
公开(公告)日：2014-09-11
申请号：US14238991
申请日：2013-03-22
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masaki Maruyama , Yoshio Masuda , Akitaka Nishio , Akira Sakai , Yasuji Mizutani , Kiyoyuki Uchida , Masaaki Komazawa , Yusuke Kamiya
IPC: F15B13/02
CPC classification number: F15B13/02 , B60T8/172 , B60T8/3265 , B60T8/3275 , B60T8/4077 , B60T8/4081 , B60T17/18 , B60T2201/03
Abstract: A vehicle brake system includes a cylinder, a master piston including a pressure applying piston and a projection portion, a servo chamber, a contact/separation determining means determining a separated state and a contact state between the input piston and the master piston, a pilot pressure generating device generating a pilot pressure, a servo pressure generating device, a servo pressure measuring device measuring a servo pressure, and a master pressure estimating means estimating a master pressure from the pilot pressure and a first servo ratio, which is a cross-sectional area ratio between a first pilot chamber and a servo pressure generating chamber, in a case of the separated state, and estimating the master pressure based on the servo pressure, the pilot pressure and a second servo ratio, which is a cross-sectional area ratio between a second pilot chamber and the servo pressure generating chamber, in a case of the contact state.
Abstract translation: 一种车辆制动系统，包括：缸体，包括加压活塞和突出部分的主活塞;伺服室;确定分离状态的接触/分离确定装置和输入活塞与主活塞之间的接触状态; 产生先导压力的压力产生装置，伺服压力产生装置，测量伺服压力的伺服压力测量装置以及从先导压力估计主压力的主压力估计装置和作为横截面的第一伺服比 在分离状态的情况下，第一导向室和伺服压力发生室之间的面积比，并且基于作为横截面积比的伺服压力，先导压力和第二伺服比来估计主压力 在第二导向室和伺服压力产生室之间，在接触状态的情况下。
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Patent Agency Ranking
公开(公告)号：US12162446B2
公开(公告)日：2024-12-10
申请号：US17640921
申请日：2020-09-23
Applicant: ADVICS CO., LTD.
Inventor： Keisuke Yamamoto , Yoshio Masuda
IPC: B60T13/68 , B60T8/175 , B60T8/1755 , B60T8/40 , B60T13/16
Abstract: A brake device includes: a first pressurizing unit configured to increase a WC pressure by supplying brake fluid into wheel cylinders provided in wheels RL and RR; a second pressurizing unit connected to a reservoir tank via a fourth flow passage and configured to increase the WC pressure by supplying the brake fluid taken in from the reservoir tank into the wheel cylinders; and a brake control unit configured to control at least one of the first pressurizing unit and the second pressurizing unit based on a target WC pressure. The brake control unit is configured to, when the WC pressure is to be increased by operating the second pressurizing unit, execute an auxiliary brake control in which the first pressurizing unit is operated to assist the second pressurizing unit to increase the WC pressure.
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公开(公告)号：US10940847B2
公开(公告)日：2021-03-09
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 provided on front wheels of a vehicle and a rear wheel braking hydraulic pressure of rear wheel cylinders provided on rear wheels of the vehicle. The brake control device includes a hydraulic pressure generating unit configured to adjust a hydraulic pressure generated by an electric motor to an adjusted hydraulic pressure and apply the adjusted hydraulic pressure as the rear wheel braking hydraulic pressure and a hydraulic pressure correcting unit 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：US10800390B2
公开(公告)日：2020-10-13
申请号：US15746675
申请日：2016-07-25
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masaki Ninoyu , Takahiro Okano , Yoshio Masuda
Abstract: The hydraulic pressure generating device includes a regulator (spool valve) formed by a cylinder body, a spool which slidably moves within the cylinder body, a pilot chamber in which a pilot pressure which is a hydraulic pressure moving the spool along in an axial direction is inputted and an output chamber out of which an output pressure which is a hydraulic pressure corresponding to the pilot pressure is outputted, wherein the hydraulic pressure generating device further includes a spool position obtaining portion which obtains a relative position of the spool relative to the cylinder body and a pilot pressure controlling portion which controls the pilot pressure based on the relative position obtained by the spool position obtaining portion.
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公开(公告)号：US09744957B2
公开(公告)日：2017-08-29
申请号：US14766077
申请日：2014-01-31
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Kiyohito Takeuchi , Yosuke Yamasoe , Yoshio Masuda , Masaki Ninoyu , Kiyoyuki Uchida , Yusuke Kamiya , Masaaki Komazawa , Akira Sakai
CPC classification number: B60T13/662 , B60T7/042 , B60T8/4077 , B60T13/146 , B60T13/148 , B60T13/686
Abstract: The braking device for a vehicle includes a judging portion which judges whether the input piston and the output piston are in contact with or separated from each other and a control portion which outputs the control signal to the pilot pressure generating device so that the hydraulic pressure detected by the hydraulic pressure detecting device becomes a target value corresponding to a vehicle state, when judged that the input piston is not in contact with the output piston and outputs another control signal to the pilot pressure generating device, by which the pilot pressure becomes higher than the pilot pressure generated under a same vehicle state to a vehicle state in a case that the control signal is outputted when the judging portion judges that the input piston is not in contact with the output piston, when judged that the input piston is in contact with the output piston.
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公开(公告)号：US09511758B2
公开(公告)日：2016-12-06
申请号：US14564696
申请日：2014-12-09
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , ADVICS CO., LTD.
Inventor： Daisuke Nakata , Yusuke Kamiya , Takahiro Okano , Yoshio Masuda , Yosuke Yamasoe
CPC classification number: B60T17/222 , B60T7/042 , B60T11/16 , B60T13/146 , B60T13/662 , B60T13/686
Abstract: A hydraulic brake system includes: a brake hydraulic-pressure control device capable of controlling a hydraulic pressure in a brake cylinder of a hydraulic brake configured to reduce a rotation of a wheel, the brake hydraulic-pressure control device including (i) a piston, (ii) a hydraulic-pressure chamber provided opposite the piston, and (iii) a moving-force control device configured to apply a moving force to the piston and capable of controlling the moving force; and an air reducing device configured to control the moving-force control device to move the piston to reduce air in an air reduction target portion including the hydraulic-pressure chamber.
Abstract translation: 一种液压制动系统，包括：制动液压控制装置，其能够控制构造成减小车轮旋转的液压制动器的制动液缸中的液压，所述制动液压控制装置包括：（i）活塞， （ii）与活塞相对设置的液压室，以及（iii）移动力控制装置，其构造成向活塞施加移动力并能够控制移动力; 以及减压装置，其构造成控制所述移动力控制装置移动所述活塞，以减少包括所述液压室的空气减少目标部分中的空气。
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