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公开(公告)号：US11518355B2
公开(公告)日：2022-12-06
申请号：US16634231
申请日：2018-08-31
Applicant: ADVICS CO., LTD.
Inventor： Terushige Uraoka , Keita Nakano
Abstract: A brake control device for controlling an electric parking brake may include: a piston capable of pressing a brake pad in accordance with the hydraulic pressure in a cylinder; a linearly moving member that adjusts, by reciprocating in the cylinder, the pressing force applied to the brake pad by the piston; and an actuator that moves the linearly moving member by operating based on a target pressing force, which is a target value of the pressing force corresponding to an output value obtained from a sensor that detects information correlating with the hydraulic pressure. The brake control device is provided with: an abnormality detection unit that detects an abnormality of the sensor; and an actuator control unit that, if an abnormality is detected, controls the operation level of the actuator based on an output value obtained prior to the detection of the abnormality.
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公开(公告)号：US11440524B2
公开(公告)日：2022-09-13
申请号：US17047240
申请日：2019-04-26
Applicant: ADVICS CO., LTD.
Inventor： Hirotaka Takeya , Shunsuke Murata , Keita Nakano
Abstract: The present disclosure provides a brake control device applied to a vehicle including a hydraulic brake device that generates a hydraulic braking force by pressing a braking member with hydraulic pressure toward a member-to-be-braked that rotates integrally with a wheel; and an electric brake device that generates an electric braking force by pressing the braking member by driving a motor toward the member-to-be-braked. A controller that controls the electric brake device is provided. The controller executes, when a predetermined condition is satisfied, a positional control for driving a motor and moving a propeller shaft that transmits the driving force of the motor to the braking member toward the member-to-be-braked as compared to when the predetermined condition is not satisfied.
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Patent Agency Ranking
公开(公告)号：US20140246897A1
公开(公告)日：2014-09-04
申请号：US14349555
申请日：2013-01-25
Applicant: ADVICS CO., LTD.
Inventor： Yoshihiro Miyata , Yasuhiro Hineno , Keita Nakano , Takanori Iida
IPC: B60T13/14
CPC classification number: B60T13/148 , B60T7/042 , B60T8/4872 , B60T13/141 , B60T13/143 , B60T13/146 , B60T13/662 , B60T13/686
Abstract: A vehicle brake device includes a hydraulic pressure generating device, a valve device, a pump and an accumulation section forming an accumulation chamber connected to a fluid passage between the valve device and the hydraulic pressure generating device or to a master chamber. A dead band is set in which the change of force of the magnitude corresponding to the hydraulic pressure in the master chamber does not substantially act on a brake operating member. A characteristic representing the relation between the pressure and the brake fluid quantity in the accumulation chamber is set based on a characteristic representing the relation between the pressure and the brake fluid quantity in a wheel cylinder and the dead band so that, when brake fluid is flowing into and from the accumulation chamber, a force of the magnitude corresponding to the master chamber hydraulic pressure does not act on the brake operating member.
Abstract translation: 车辆制动装置包括液压产生装置，阀装置，泵和形成与阀装置和液压产生装置之间的流体通道连接到主室的蓄积室的积存部。 设定死区，其中与主室中的液压相对应的大小的力的变化基本上不作用在制动操作构件上。 基于代表轮缸中的压力和制动液量与死区之间的关系的特性来设定代表蓄积室中的压力和制动液量之间的关系的特性，使得当制动液流动时 进入和离开积聚室，与主室液压相对应的大小的力不作用在制动操作构件上。
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公开(公告)号：US11267444B2
公开(公告)日：2022-03-08
申请号：US16335317
申请日：2017-09-22
Applicant: ADVICS CO., LTD.
Inventor： Terushige Uraoka , Keita Nakano , Tatsuya Urano
Abstract: The brake control device controls a hydraulic brake to generate hydraulic braking force on both the front and rear wheels of a four-wheel-drive vehicle, and an electrical parking brake to generate parking brake force, different from the hydraulic braking force, on the front or rear wheels. The brake control device includes: a detection unit that detects parking brake operation for causing the electrical parking brake to generate a parking brake force; and a control unit for reducing the hydraulic braking force generated on the front wheels or the rear wheels and adjusting the hydraulic braking force on the other of the front wheels or the rear wheels to a magnitude allowing a stationary vehicle state to be maintained, before a parking brake force is generated by the electrical parking brake, when a parking brake operation is detected while a stationary state is being maintained solely by the hydraulic braking force.
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公开(公告)号：US09796367B2
公开(公告)日：2017-10-24
申请号：US14349555
申请日：2013-01-25
Applicant: ADVICS CO., LTD.
Inventor： Yoshihiro Miyata , Yasuhiro Hineno , Keita Nakano , Takanori Iida
CPC classification number: B60T13/148 , B60T7/042 , B60T8/4872 , B60T13/141 , B60T13/143 , B60T13/146 , B60T13/662 , B60T13/686
Abstract: A vehicle brake device includes a hydraulic pressure generating device, a valve device, a pump and an accumulation section forming an accumulation chamber connected to a fluid passage between the valve device and the hydraulic pressure generating device or to a master chamber. A dead band is set in which the change of force of the magnitude corresponding to the hydraulic pressure in the master chamber does not substantially act on a brake operating member. A characteristic representing the relation between the pressure and the brake fluid quantity in the accumulation chamber is set based on a characteristic representing the relation between the pressure and the brake fluid quantity in a wheel cylinder and the dead band so that, when brake fluid is flowing into and from the accumulation chamber, a force of the magnitude corresponding to the master chamber hydraulic pressure does not act on the brake operating member.
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公开(公告)号：US12187249B2
公开(公告)日：2025-01-07
申请号：US17429020
申请日：2020-02-25
Applicant: ADVICS CO., LTD.
Inventor： Hirotaka Takeya , Keita Nakano
Abstract: The present invention relates to, for example, a vehicle control device including a driving force control unit that controls a driving force generated by a wheel of a vehicle; and a braking force control unit that controls a braking force generated by the wheel; where the driving force control unit generates the driving force of a first prescribed amount and the braking force control unit generates the braking force of a second prescribed amount to control the speed of the vehicle to be constant; and acceleration or deceleration are both controllable by performing one of control of the driving force by the driving force control unit and control of the braking force by the braking force control unit.
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公开(公告)号：US11572049B2
公开(公告)日：2023-02-07
申请号：US16326999
申请日：2017-08-09
Applicant: ADVICS CO., LTD.
Inventor： Tatsuya Urano , Keita Nakano , Terushige Uraoka
Abstract: A brake control device controls a hydraulic brake that generates hydraulic braking force and an electric parking brake that generates parking braking force different from the hydraulic braking force. The brake control device comprises: a detection unit that detects a parking brake operation for causing the electric parking brake to generate the parking braking force; and a control unit that causes the electric parking brake to generate the parking braking force when the hydraulic braking force per wheel generated by the hydraulic brake, after decreasing below the minimum first braking force per wheel required for maintaining the vehicle stop state only by the electric parking brake, is less than the first braking force, in association with the parking brake operation having been performed in a state where the stop state is maintained only by a hydraulic brake operation for causing the hydraulic brake to generate the hydraulic braking force.
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