公开(公告)号：US20040000813A1

公开(公告)日：2004-01-01

申请号：US10441220

申请日：2003-05-20

Applicant: ADVICS CO., LTD.

Inventor： Katsuhiro Mita ,  Atsushi Yasuda

IPC: B60T008/44

CPC classification number: B60T11/16 ,  B60T13/565

Abstract: Disclosed is a master cylinder wherein a seal member is given plural seal functions to reduce the number of seal members for partitioning a drain portion of the master cylinder, a constant-pressure chamber of a booster and the atmosphere from one another, so that the master cylinder is simplified in construction and reduced in manufacturing cost. When a piston is operated by an output shaft of the booster attached to a booster mounting surface of a cylinder body, the operating fluid from the fluid pressure chamber partitioned by a fluid-tight seal member is supplied to a brake system. An annular complex seal member is fit in an internal seal stepped portion which is formed by radially expanding an opening portion of the cylinder which opens to a booster mounting surface. A slide seal portion of the complex seal member partitions a drain portion behind the fluid-tight seal member from the constant-pressure chamber of the booster through sliding contact with the piston. An air-tight seal portion of the complex seal member partitions the constant-pressure chamber from the atmosphere through abutting engagement with the front end surface of the booster. Further, a fixed seal portion of the complex seal member partitions the drain portion from the atmosphere through abutting engagement with the internal surface of an internal seal stepped portion.

Abstract translation: 公开了一种主缸，其中密封构件具有多个密封功能，以减少用于分隔主缸的排水部分的密封构件的数量，增压器的恒压室和彼此的气氛，使得主缸 气缸的结构简化，制造成本降低。 当活塞由连接在气缸本体的增压器安装面上的增压器的输出轴进行动作时，由流体密封构件分隔的流体压力室的工作流体供给制动系统。 环形复合密封构件配合在通过径向扩大开放到增压器安装表面的气缸的开口部分形成的内部密封阶梯部分中。 复合密封构件的滑动密封部分通过与活塞的滑动接触将流体密封构件后面的排水部分与助力器的恒压室隔开。 复合密封构件的气密密封部分通过与增压器的前端表面的抵靠接合将恒压室与大气隔开。 此外，复合密封构件的固定密封部分通过与内部密封阶梯部分的内表面的抵接接合而将排水部分与大气分隔开。

公开(公告)号：US20030221898A1

公开(公告)日：2003-12-04

申请号：US10408356

申请日：2003-04-08

Applicant: AISIN SEIKI KABUSHIKI KAISHA, TOYODA KOKI KABUSHIKI KAISHA and ADVICS CO., LTD.

Inventor： Yoshiyuki Yasui ,  Wataru Tanaka ,  Yuji Muragishi ,  Eiichi Ono ,  Katsuhiro Asano ,  Minekazu Momiyama ,  Hiroaki Kato ,  Kenji Asano

IPC: B62D005/04

CPC classification number: B62D5/0472 ,  B60T8/1755 ,  B60T8/1764 ,  B60T2220/03 ,  B60T2260/024 ,  B60W10/184 ,  B60W10/20 ,  B60W2520/10 ,  B60W2520/30 ,  B60W2720/14 ,  B62D5/046 ,  B62D6/003

Abstract: A motor-driven steering controller for controlling a steering wheel of a vehicle. The controller includes a steering torque controlling unit, a braking force estimating unit, a right and left braking force difference estimating unit and an assist steering torque providing unit. The steering torque controlling unit controls a steering torque on the steering wheel depending on a steering operation. The braking force estimating unit estimates braking forces to be imposed on wheels of the vehicle. The right and left braking force difference estimating unit estimates difference between the braking forces to be imposed on the right and left wheels each estimated by the braking forces estimating unit. The assist steering torque providing unit provides an assist steering torque for the steering torque controlling unit on the basis of the difference in braking force between right and left wheels estimated by the right and left braking force difference estimating unit.

Abstract translation: 一种用于控制车辆的方向盘的电动转向控制器。 控制器包括转向转矩控制单元，制动力估计单元，左右制动力差推定单元和辅助转向转矩提供单元。 转向转矩控制单元根据转向操作来控制方向盘上的转向转矩。 制动力估计单元估计要施加在车辆的车轮上的制动力。 左右制动力差推定部判定由制动力推定部估计出的施加在左右车轮上的制动力之差。 辅助转向转矩提供单元基于由右和左制动力差估计单元估计的左右车轮之间的制动力的差异，为转向转矩控制单元提供辅助转向转矩。

公开(公告)号：US20030214180A1

公开(公告)日：2003-11-20

申请号：US10437970

申请日：2003-05-15

Applicant: ADVICS CO., LTD.

Inventor： Akihito Kusano

IPC: B60T008/42

CPC classification number: B60T13/143 ,  B60T8/44 ,  B60T8/441 ,  B60T8/4827 ,  B60T13/145

Abstract: An improved hydraulic brake system for a vehicle is proposed which includes a hydraulic pressure supply unit for supplying hydraulic pressure from a pressure adjusting valve or an hydraulic pressure source to a pressure chamber of a master cylinder. In this type of brake system, when the hydraulic pressure supply unit is activated, the master piston of the master cylinder could retract to its original position, thus bringing the master pressure chamber into communication with the atmospheric reservoir. If this happens, the master cylinder pressure output will be lost completely. An inexpensive solution to this problem is proposed. A piston retraction restricting member is provided in a pressure chamber for applying pressure to the master piston. The member is adapted to move to a predetermined position under the pressure in the pressure chamber to engage and stop the master piston before the master piston retracts to a position where the master pressure chamber is brought into communication with the atmospheric reservoir through a hole.

Abstract translation: 提出了一种用于车辆的改进的液压制动系统，其包括用于将压力从压力调节阀或液压源提供给主缸的压力室的液压供应单元。 在这种类型的制动系统中，当液压供给单元被激活时，主缸的主活塞可以缩回到其初始位置，从而使主压力室与大气储存器连通。 如果发生这种情况，主缸压力输出将完全丢失。 提出了一个廉价的解决这个问题的方案。 活塞回缩限制件设置在用于向主活塞施加压力的压力室中。 该构件适于在主活塞缩回到主压力室通过孔与大气储存器连通的位置之前，在压力室内的压力下移动到预定位置以接合和停止主活塞。

公开(公告)号：US12280762B2

公开(公告)日：2025-04-22

申请号：US18738848

申请日：2024-06-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  J-QuAD DYNAMICS Inc. ,  ADVICS CO., LTD.

Inventor： Yusuke Kamiya ,  Kazuki Miyake ,  Taketsugu Miyata ,  Tatsuya Hiromura

IPC: B60W50/00 ,  B60W10/06 ,  B60W10/188 ,  B60W30/18

Abstract: A control device for a vehicle includes one or more processors configured to: perform feedback control on an acceleration of the vehicle by controlling a driving force of an internal combustion engine mounted on the vehicle based on a difference between a requested acceleration of the vehicle from an application and an actual acceleration of the vehicle; calculate a first predicted acceleration that is a predicted acceleration of the vehicle on an assumption that the internal combustion engine is controlled into a fuel-cut state; and control the internal combustion engine into the fuel-cut state without performing the feedback control when a coasting condition that is predetermined is satisfied and the first predicted acceleration is equal to or higher than a lower limit value that is predetermined as a negative value.

公开(公告)号：US20250058754A1

公开(公告)日：2025-02-20

申请号：US18721779

申请日：2022-12-22

Applicant: ADVICS CO., LTD.

Inventor： Daichi NAGAE ,  Keisuke TANAKA

IPC: B60T13/66 ,  B60T8/171 ,  B60T8/172 ,  B60T13/74

Abstract: This braking control device comprises a first unit that outputs supply pressure in accordance with the amount of operation of a braking operation member, a second unit that is provided between the first unit and a wheel cylinder and that increases the supply pressure and outputs a wheel pressure to the wheel cylinder, a communication bus that transfers signals between the first unit and the second unit, an operation amount sensor that detects the amount of operation, and a supply pressure sensor that detects the supply pressure. In the braking control device, the first unit controls the supply pressure so as to bring the supply pressure close to a target pressure calculated on the basis of the amount of operation. When the first unit is abnormal, the second unit increases the wheel pressure on the basis of the deviation between the target pressure and the supply pressure.

公开(公告)号：US20250042378A1

公开(公告)日：2025-02-06

申请号：US18836127

申请日：2023-03-08

Applicant: ADVICS CO., LTD.

Inventor： Shun TSUKAMOTO

IPC: B60T13/58

Abstract: A brake system includes electric braking devices. Each of the electric braking devices includes an electric motor. In the brake system, it is determined whether regenerative power is generated by the electric motors, and when it is determined that regenerative power is generated by any one of the electric motors, an electric motor other than the electric motor determined as generating regenerative power is driven so that a power consumption amount of the other electric motor is increased.

公开(公告)号：US12212209B2

公开(公告)日：2025-01-28

申请号：US18068709

申请日：2022-12-20

Applicant: ADVICS CO., LTD. ,  AISIN CORPORATION

Inventor： Yasuhito Nakashima ,  Atsushi Inoue ,  Kyohei Asahi ,  Keiji Ogawa

IPC: H02K5/10 ,  B60T13/14

Abstract: A motor unit includes: a motor provided with a first chamber and including a shaft; a rotary member coupled to the shaft outside the first chamber; a housing provided with a second chamber accommodating the rotary member; and a guide member including a peripheral wall between the first chamber and the second chamber, the guide member being provided with a third chamber inside the peripheral wall, wherein the motor unit is provided with a fourth chamber which is outside the first chamber and is open to an inner surface of the second chamber and/or the third chamber, the inner surface of the third chamber includes a guide, and the guide extends farther away from a rotation axis as is closer to the fourth chamber.

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

IPC: B60T8/17 ,  B60T8/40 ,  B60T13/20

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.

公开(公告)号：US20240395139A1

公开(公告)日：2024-11-28

申请号：US18630035

申请日：2024-04-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  ADVICS CO., LTD.

Inventor： Hiroshi UENO ,  Wataru KANDA ,  Takeshi TAKEMOTO ,  Hideyuki TAKAKI ,  Yoshihisa YAMADA ,  Tomoya TANAKA ,  Yasufumi ENAMI

IPC: G08G1/0967 ,  G07C5/00

Abstract: An information processing device for a vehicle, the information processing device including one or more processors configured to execute acquiring vehicle driving force, acquiring inertial resistance with respect to motion of the vehicle, acquiring position coordinates of a point where the vehicle is situated, acquiring gradient resistance at the point where the vehicle is situated, calculating traveling resistance by subtracting the inertial resistance and the gradient resistance from the vehicle driving force, and externally transmitting, from the vehicle, data including the positional coordinates, and the traveling resistance calculated based on the vehicle driving force at the positional coordinates, the inertial resistance, and the gradient resistance, as collected data.

公开(公告)号：US20240375630A1

公开(公告)日：2024-11-14

申请号：US18690199

申请日：2022-09-28

Applicant: ADVICS CO., LTD.

Inventor： Ryota MAENO ,  Satoshi HIRATA ,  Atsushi TAKAHASHI ,  Tsuyoshi OTAKE

IPC: B60T13/74

Abstract: This electric braking device comprises a linear motion conversion mechanism having a screw shaft caused to rotate by an electric motor, and a nut that moves linearly in response to the rotation of the screw shaft. The electric braking device generates braking force in a vehicle wheel due to a piston coupled to the nut moving linearly within a cylinder and applying pressure to brake fluid. In the electric braking device, a coil spring, of which the extending/retracting direction is the linear motion direction of the piston, is installed in such a state as to be sandwiched between the piston and the screw shaft, so as to be compressed in response to the linear movement of the screw shaft in a direction for reducing braking force and to generate repulsive force against the compression.