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公开(公告)号：US11938917B2
公开(公告)日：2024-03-26
申请号：US17041486
申请日：2019-03-28
Applicant: ADVICS CO., LTD.
Inventor： Tomotaka Asano , Takayuki Yamamoto , Yasuhito Ishida
CPC classification number: B60T8/96 , B60T8/172 , B60T8/321 , B60T8/885 , B60T17/221 , B60T2250/00 , B60T2270/402 , B60T2270/406
Abstract: A braking control device for a vehicle includes a malfunction detector configured to detect a malfunction of a first stroke sensor or a second stroke sensor, a memory configured to store a first stroke and a second stroke, a stroke calculator for first calculation configured to calculate, from the first stroke and the second stroke, an average value for calculating a target deceleration before a malfunction is detected by the malfunction detector, a stroke calculator for second calculation configured to calculate, from the average value and the second stroke (first stroke), an additional value for calculating the target deceleration after the malfunction is detected, and a target deceleration setting circuit configured to set the target deceleration from the average value or the additional value.
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公开(公告)号：US10286887B2
公开(公告)日：2019-05-14
申请号：US15129166
申请日：2015-03-31
Applicant: ADVICS CO., LTD.
Inventor： Yusuke Nakagawa , Yasuhito Ishida
Abstract: This driving assistance device includes a braking control unit and a target speed determination unit. The braking control unit executes driving assistance control for adjusting the braking force to be applied to a vehicle by actuating a brake actuator such that the vehicle body speed does not exceed a target speed. In cases where the accelerator pedal is being operated in a state where the braking control unit is executing the driving assistance control, the target speed determination unit determines the target speed depending on the larger value of either: the vehicle body speed that is correlated with at least one of the wheel speeds of the plurality of wheels provided to the vehicle; or the lower speed limit value that has been set.
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公开(公告)号：US10259437B2
公开(公告)日：2019-04-16
申请号：US15510842
申请日：2015-11-25
Applicant: ADVICS CO., LTD.
Inventor： Kunihiro Nishiwaki , Takayuki Yamamoto , Kyosuke Hata , Yasuhito Ishida
Abstract: A vehicle braking device includes: a stroke simulator for generating a hydraulic pressure corresponding to a brake operation in a hydraulic chamber, the stroke simulator having a cylinder part and a piston part for sliding through the inside of the cylinder part in conjunction with a brake operation of a brake pedal; a booster mechanism having an input part directly pressed by the piston part or pressed by a spring interposed between the input part and the piston part in conjunction with the sliding of the piston part, and thereby moved in sliding fashion through the inside of the cylinder, and a hydraulic pressure generating part for generating a first hydraulic pressure corresponding to the movement of the input part based on the hydraulic pressure of an accumulator; and a wheel cylinder for applying a braking force to a vehicle wheel on the basis of the first hydraulic pressure.
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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：US11827199B2
公开(公告)日：2023-11-28
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
CPC classification number: B60T8/171 , B60T8/409 , B60T13/686 , B60T17/221 , B60T7/042 , B60T2270/82 , B60T2270/88
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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Patent Agency Ranking
公开(公告)号：US11794709B2
公开(公告)日：2023-10-24
申请号：US16980113
申请日：2019-03-28
Applicant: ADVICS CO., LTD.
Inventor： Kunihiro Nishiwaki , Jun Nomura , Yasuhito Ishida , Tatsushi Kobayashi
CPC classification number: B60T13/686 , B60T8/17 , B60T8/4081 , B60T15/028 , B60T8/441 , B60T2220/04 , B60T2270/82
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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公开(公告)号：US11180123B2
公开(公告)日：2021-11-23
申请号：US16476702
申请日：2018-01-10
Applicant: ADVICS CO., LTD.
Inventor： Yasuhito Ishida , Takayuki Yamamoto
Abstract: This vehicle control system is provided with an input monitoring unit and a determination time changing unit. When a state in which first target data is not input to a second control unit continues for a first determination time or longer, the input monitoring unit determines the first target data to be in a non-input state. When a state in which second target data is not input to the second control unit continues for a second determination time or longer, the input monitoring unit determines the second target data to be in a non-input state. When the first target data is determined to be in a non-input state, the determination time changing unit shortens the second determination time.
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8.发明申请公开(公告)号：US20190184953A1
公开(公告)日：2019-06-20
申请号：US16318816
申请日：2017-07-26
Applicant: ADVICS CO., LTD.
Inventor： Yasuhito Ishida , Takayuki Yamamoto
CPC classification number: B60T8/885 , B60T8/17 , B60T8/171 , B60T8/326 , B60T8/88 , B60T17/22 , B60T2220/04 , B60T2270/413 , G08C19/00 , G08C25/00 , H04Q9/00
Abstract: A sensor monitoring device that comprises: a first controller ECA into which a detected value Smn from a sensor SMN is inputted via a first signal line LMA; a second controller ECB into which the detected value Smn is inputted via a second signal line LMB; and a communication bus CMB that transmits signals between the first controller ECA and the second controller ECB. The second controller ECB reads in the detected value Smn as a second processing value Smb and transmits the second processing value Smb to the first controller ECA via the communication bus CMB. The first controller ECA reads in the detected value Smn as a first processing value Sma, receives the second processing value Smb, and, on the basis of the first processing value Sma and the second processing value Smb, determines the suitability of the first processing value Sma.
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公开(公告)号：US20190100181A1
公开(公告)日：2019-04-04
申请号：US16082143
申请日：2017-03-28
Applicant: ADVICS CO., LTD.
Inventor： Tatsushi Kobayashi , Takayuki Yamamoto , Yasuhito Ishida , Kunihiro Nishiwaki
IPC: B60T8/48 , B60T8/36 , B60T8/1761 , B60T8/26
Abstract: This invention is characterized in being provided with: a determining unit for determining the execution of a state transition from a pressure increase mode in which an electric pump is operated with a differential valve being in a closed state and a holding valve being in an open state to a pressure decrease mode in which the electric pump is operated with the holding valve being in a closed state and the differential valve being in an open state; and a control unit for controlling, when the determining unit determines the execution of the state transition, one or more of the differential valve, the holding valve, a pressure reduction valve, and the electric pump, and reducing the amount of a braking fluid retained in a path between the differential valve and the holding valve.
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公开(公告)号：US10144423B2
公开(公告)日：2018-12-04
申请号：US15300518
申请日：2015-03-31
Applicant: ADVICS CO., LTD.
Inventor： Yusuke Nakagawa , Yasuhito Ishida
Abstract: This brake ECU executes vehicle downhill control for adjusting the braking force to be applied to a vehicle by actuating a brake actuator such that the vehicle body speed does not exceed a target speed. Also, in cases where the accelerator pedal is being operated in a state where the vehicle downhill control is being executed, the brake ECU changes the target speed such that, the longer the operation duration which is the duration for which the accelerator is operated, the higher the target speed.
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