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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:US09969379B2
公开(公告)日:2018-05-15
申请号:US14812831
申请日:2015-07-29
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , ADVICS CO., LTD.
Inventor: Masaki Nanahara , Masayasu Ohkubo , Kazutaka Noro , Masaki Ninoyu , Takahiro Okano
CPC classification number: B60T17/221 , B60T7/042 , B60T13/146 , B60T13/662 , B60T13/686 , G01M3/2876
Abstract: A method for detecting fluid leakage from a pressure-decrease valve in a hydraulic brake system having an ABS device including: a shutoff valve for shutting off supply of a working fluid from a fluid-pressure supply source to a brake device provided for a wheel; the pressure-decrease valve for discharging the working fluid from the brake device; a reservoir for storing the working fluid discharged from the pressure-decrease valve; and a return pump for returning the working fluid stored in the reservoir to a portion between the shutoff valve and the fluid-pressure supply source, the method including the steps of: activating the return pump in a state in which the hydraulic brake system is not in ABS operation, and detecting the fluid leakage from the pressure-decrease valve based on a variation in a pressure of the working fluid in the fluid-pressure supply source caused when the return pump is activated.
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公开(公告)号:US09902385B2
公开(公告)日:2018-02-27
申请号:US15100035
申请日:2014-11-28
Applicant: ADVICS CO., LTD.
Inventor: Takahiro Okano , Masaki Ninoyu
CPC classification number: B60T13/662 , B60T7/042 , B60T8/4077 , B60T11/20 , B60T13/146 , B60T13/686
Abstract: A vehicular braking device can shorten the time between pilot pressure input to a regulator and generation of servo pressure, and reduce product-by-product time variations for servo pressure generation. This vehicular braking device comprises: a servo pressure rising start time measurement unit that measures, in advance, a servo pressure rising start time which is the time from pilot pressure input to a first pilot chamber by opening a pressure increase valve to when a servo pressure starts to rise, and stores the servo pressure rising start time in a storage unit; a pilot pressure increase time calculation unit that calculates a pilot pressure increase time based on the servo pressure rising start time stored in advance in the storage unit; and a pre-fill control unit that increases the pilot pressure for the pilot pressure increase time by opening the pressure increase valve when brake pedal operation is detected.
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公开(公告)号:US09802592B2
公开(公告)日:2017-10-31
申请号:US14717559
申请日:2015-05-20
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Takahiro Okano , Daisuke Nakata , Yusuke Kamiya
IPC: G06F7/70 , G06F19/00 , G06G7/00 , G06G7/76 , B60T13/66 , B60T8/171 , B60T8/32 , B60T13/68 , B60T8/34 , B60T13/14 , B60T7/04
CPC classification number: B60T13/662 , B60T7/042 , B60T8/171 , B60T8/326 , B60T8/34 , B60T13/142 , B60T13/146 , B60T13/686
Abstract: The brake control device comprises a control mode selecting portion 64 which selects one control mode based on a detection result of the detecting portion from a control mode group including at least two control modes which are a responsiveness priority mode which gives more priority to a responsiveness of the braking force relative to an operation of a brake operating member than to a suppression of an operating noise occurred upon the generation of the preparatory hydraulic pressure and a serenity priority mode which gives more priority to the suppression of the operating noise than to the responsiveness of the braking force. The hydraulic pressure control portion controls the hydraulic pressure generating device to generate the preparatory hydraulic pressure in response to the control mode selected by the control mode selecting portion.
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35.
公开(公告)号:US09505388B2
公开(公告)日:2016-11-29
申请号:US14317315
申请日:2014-06-27
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , ADVICS CO., LTD.
Inventor: Yusuke Kamiya , Kiyoyuki Uchida , Masaki Ninoyu , Takahiro Okano
IPC: B60T13/122 , B60T11/228 , B60T11/16 , B60T7/04 , B60T13/14 , B60T13/66 , B60T13/68
CPC classification number: B60T11/228 , B60T7/042 , B60T8/4077 , B60T11/16 , B60T13/146 , B60T13/662 , B60T13/686 , Y10T137/7781
Abstract: A hydraulic brake system includes: a master cylinder including a pressurizing piston; a brake cylinder for a hydraulic brake operable by a hydraulic pressure in a front pressure chamber defined in front of the pressurizing piston; and a rear-hydraulic pressure controller connected to a rear chamber defined at a rear of the pressurizing piston. The rear-hydraulic pressure controller controls a hydraulic pressure in the rear chamber and includes: a regulator, operable by at least one of the hydraulic pressure in the front pressure chamber and a control pressure controlled electrically, for supplying an output hydraulic pressure to the rear chamber; and a master-pressure-operating-state detector configured to, when the output hydraulic pressure is greater than a threshold value, detect that the regulator is in a master-pressure operating state in which the regulator is operated by at least the hydraulic pressure in the front pressure chamber.
Abstract translation: 液压制动系统包括:主缸,包括加压活塞; 用于液压制动器的制动缸,其可通过限定在加压活塞前面的前压力室中的液压进行操作; 以及连接到限定在加压活塞的后部的后室的后液压压力控制器。 后液压压力控制器控制后室中的液压,并包括:调节器,其可通过前压力室中的至少一个液压和电控制的控制压力操作,用于将输出液压提供给后 房间 以及主压力操作状态检测器,其被配置为当所述输出液压大于阈值时,检测到所述调节器处于主压力操作状态,其中所述调节器至少通过液压 前压力室。
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公开(公告)号:US09393875B2
公开(公告)日:2016-07-19
申请号:US14424405
申请日:2013-08-27
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Takahiro Okano , Yusuke Kamiya , Masaaki Komazawa
CPC classification number: B60L7/18 , B60L7/14 , B60L7/26 , B60L2250/26 , B60T1/10 , B60T8/172 , B60T2270/604
Abstract: The vehicle braking device has a hydraulic braking force generating device, a regeneration braking force generating device, a braking operation amount detection portion and a required braking force calculation portion. The vehicle braking device controls the hydraulic braking force generating device and the regeneration braking force generating device so as to apply the required braking force to the wheels. The vehicle braking device has a braking force adjustment control portion for executing braking force adjustment control for limiting the rate at which the regeneration braking force is increased and increasing the hydraulic braking force before the current regeneration braking force reaches a maximum regeneration braking force, that is, the maximum braking force that can be generated by the regeneration braking force generating device.
Abstract translation: 车辆制动装置具有液压制动力产生装置,再生制动力产生装置,制动操作量检测部分和所需的制动力计算部分。 车辆制动装置控制液压制动力产生装置和再生制动力产生装置,以便对车轮施加所需的制动力。 车辆制动装置具有用于执行制动力调节控制的制动力调节控制部,用于限制再生制动力增加的速度,并且增加当前再生制动力达到最大再生制动力之前的液压制动力,即 由再生制动力产生装置产生的最大制动力。
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37.
公开(公告)号:US20150015059A1
公开(公告)日:2015-01-15
申请号:US14317315
申请日:2014-06-27
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , ADVICS CO., LTD.
Inventor: Yusuke KAMIYA , Kiyoyuki Uchida , Masaki Ninoyu , Takahiro Okano
IPC: B60T11/228 , B60T11/16
CPC classification number: B60T11/228 , B60T7/042 , B60T8/4077 , B60T11/16 , B60T13/146 , B60T13/662 , B60T13/686 , Y10T137/7781
Abstract: A hydraulic brake system includes: a master cylinder including a pressurizing piston; a brake cylinder for a hydraulic brake operable by a hydraulic pressure in a front pressure chamber defined in front of the pressurizing piston; and a rear-hydraulic pressure controller connected to a rear chamber defined at a rear of the pressurizing piston. The rear-hydraulic pressure controller controls a hydraulic pressure in the rear chamber and includes: a regulator, operable by at least one of the hydraulic pressure in the front pressure chamber and a control pressure controlled electrically, for supplying an output hydraulic pressure to the rear chamber; and a master-pressure-operating-state detector configured to, when the output hydraulic pressure is greater than a threshold value, detect that the regulator is in a master-pressure operating state in which the regulator is operated by at least the hydraulic pressure in the front pressure chamber.
Abstract translation: 液压制动系统包括:主缸,包括加压活塞; 用于液压制动器的制动缸,其可通过限定在加压活塞前面的前压力室中的液压进行操作; 以及连接到限定在加压活塞的后部的后室的后液压压力控制器。 后液压压力控制器控制后室中的液压,并包括:调节器,其可通过前压力室中的至少一个液压和电控制的控制压力操作,用于将输出液压提供给后 房间 以及主压力操作状态检测器,其被配置为当所述输出液压大于阈值时,检测所述调节器处于主压力操作状态,其中所述调节器至少通过液压操作 前压力室。
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