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公开(公告)号：US20230173926A1
公开(公告)日：2023-06-08
申请号：US18073132
申请日：2022-12-01
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , ADVICS CO., LTD.
Inventor： Nozomu MARUHASHI , Yuichi Shimizu , Toshiki Hara , Yoshitaka Fujita
IPC: B60L7/18 , B60T8/26 , B60K17/356 , B60T7/12
CPC classification number: B60L7/18 , B60T8/26 , B60K17/356 , B60T7/12
Abstract: A vehicle according to the present disclosure includes a brake device and an electronic control unit. The brake device is configured to change a front-rear distribution ratio of braking force with respect to front and rear wheels. The electronic control unit is configured to: control the brake device such that the front-rear distribution ratio is in accordance with a fixed distribution characteristic in which the front-rear distribution ratio is constant regardless of deceleration of the vehicle in at least a part of a first range being a required deceleration range lower than a lower limit value of the deceleration perceivable by a person in the vehicle; and control the brake device such that the front-rear distribution ratio is biased toward the rear wheel than that in the fixed distribution characteristic in a second range in which the deceleration is higher than that in the first range.
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公开(公告)号：US20230091943A1
公开(公告)日：2023-03-23
申请号：US17909181
申请日：2021-03-26
Applicant: ADVICS CO., LTD.
Inventor： Tomoo HARADA
IPC: F04B1/0408
Abstract: A pump includes: fluid delivery portions each including a volume variable mechanism, a first port and a second port, and a valve mechanism; and a pump flow path formed by the three or more fluid delivery portions being connected in series, in which a movement range of each of pistons includes a maximum volume position, a minimum volume position, and a switching position, and the pump flow path is configured such that a closing movement process (movement between switching position and minimum volume position) in which the piston moves between the switching position and the minimum volume position by driving of a drive device is sequentially shifted from a first inlet/outlet port toward a second inlet/outlet port or from the second inlet/outlet port toward the first inlet/outlet port among the fluid delivery portions
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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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公开(公告)号：US20230025963A1
公开(公告)日：2023-01-26
申请号：US17792855
申请日：2021-01-14
Applicant: ADVICS CO., LTD.
Inventor： Yusaku YAMAMOTO
IPC: B60T8/1755 , B60L7/24
Abstract: A control device includes: a first braking unit, that applies a first braking force to a steering wheel of a vehicle; a second braking unit, that applies a second braking force to a non-steering wheel of the vehicle; and a control device that controls the first braking unit, and the second braking unit, according to a target braking force, where the control device includes a steering angle information acquiring unit that acquires a steering angle-related value related to a steering angle of the steering wheel, and a distribution changing unit that executes a distribution change control of changing a braking force distribution between the first braking force and the second braking force based on the steering angle-related value when the target braking force is applied.
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公开(公告)号：US20220410860A1
公开(公告)日：2022-12-29
申请号：US17779022
申请日：2020-11-25
Applicant: ADVICS CO., LTD.
Inventor： Kazuya MORISHITA , Daijiro UCHIDA
Abstract: The braking control device decelerates a vehicle by automatically increasing a brake fluid pressure as a hydraulic pressure in a wheel cylinder at the time when a braking operation member is not operated, and includes: a pressure regulating valve provided to a connection path for connecting a master cylinder and the wheel cylinder and regulating a differential pressure between a master cylinder hydraulic pressure as a hydraulic pressure in the master cylinder and the brake fluid pressure; a fluid pump driven by an electric motor and discharging a brake fluid into the connection path between the pressure regulating valve and the wheel cylinder; and a controller controlling the pressure regulating valve and the electric motor. When the brake fluid pressure no longer has to be increased, the controller closes the pressure regulating valve and stops driving the electric motor.
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Patent Agency Ranking
公开(公告)号：US20220410721A1
公开(公告)日：2022-12-29
申请号：US17776982
申请日：2020-11-20
Applicant: ADVICS CO., LTD.
Inventor： Hirotaka TAKEYA , Terushige URAOKA
IPC: B60L7/26
Abstract: The present disclosure is, for example, a braking control device for application in a vehicle. The braking control device includes: a hydraulic brake device that presses a braking member using hydraulic pressure toward a braked member that rotates integrally with a wheel to generate hydraulic braking force; and an electric brake device that presses the braking member using driving force of a motor toward the braked member to generate electric braking force. The braking control device adjusts the hydraulic braking force so that a vehicle speed falls within a target vehicle speed range while the vehicle is traveling on a downhill road, and replaces the hydraulic braking force with the electric braking force when at least one of the vehicle speed and the hydraulic pressure is stabilized.
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公开(公告)号：US11518351B2
公开(公告)日：2022-12-06
申请号：US16615506
申请日：2018-05-29
Applicant: ADVICS CO., LTD.
Inventor： Manabu Tanaka , Shunya Watanabe
Abstract: This braking control device pumps a brake fluid from a reservoir to each wheel cylinder by one fluid pump and includes an electric motor which drives the fluid pump; and a controller which controls the electric motor. The controller calculates a target fluid pressure on the basis of at least one among the vehicle wheel speed, the vehicle deceleration state, and the turning state of the vehicle, calculates a target discharge amount for the fluid pump on the basis of the target fluid pressure, and controls the electric motor on the basis of the target discharge amount. The controller has a front wheel calculation map of the relationship between the fluid pressure and the inflow volume of the brake fluid corresponding to a front wheel cylinder, and a rear wheel calculation map corresponding to a rear wheel cylinder, and calculates the target discharge amount on the basis of the maps.
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公开(公告)号：US11456642B2
公开(公告)日：2022-09-27
申请号：US16542040
申请日：2019-08-15
Applicant: DENSO CORPORATION , ADVICS CO., LTD.
Inventor： Takumi Suzuki , Motoki Uehama , Atsushi Inoue
Abstract: A motor device includes a motor body having a stator and a rotor, and an EDU for controlling the motor body. A hydro unit is disposed between the motor body and the EDU (Electric Driver Unit). In the motor body, a plurality of terminal lines for energizing the coil of the stator and the EDU is drawn around, and a rotation detection unit for detecting the rotation of the rotor is provided a space formed between the plurality of drawn terminal lines and the rotation shaft of the motor.
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公开(公告)号：US11440547B2
公开(公告)日：2022-09-13
申请号：US16764820
申请日：2018-11-16
Applicant: ADVICS CO., LTD.
Inventor： Mako Noguchi
IPC: B60W30/18 , B60T7/22 , B60W10/184 , B60W40/076
Abstract: A parking assistance unit comprises: a step determination unit that executes a first determination process for determining whether a step that a vehicle wheel has contacted is a step for stopping the vehicle; and a braking/drive force setting unit that executes a stop request control for requesting stopping of a vehicle by increasing the braking force of the vehicle, when a step has been determined by the first determination process to be a step for stopping the vehicle.
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公开(公告)号：US20220227341A1
公开(公告)日：2022-07-21
申请号：US17573231
申请日：2022-01-11
Applicant: Toyota Jidosha Kabushiki Kaisha , ADVICS CO., LTD.
Inventor： Misuzu SHIMAZAKI , Yusuke Kamiya , Ken Kuzuya
Abstract: A vehicle brake system, including: a first hydraulic-pressure control mechanism and a second hydraulic-pressure control mechanism configured to control a braking force; and a controller including a first-abnormal-state detecting device configured to detect whether the first hydraulic-pressure control mechanism is in a first abnormal state, a second-abnormal-state detecting device configured to detect whether the first hydraulic-pressure control mechanism is in a second abnormal state that the first hydraulic-pressure control mechanism reaches before reaching the first abnormal state, and an assist control device configured to control the second braking-force control mechanism so as to control the braking force when an assist wait time elapses after the second-abnormal-state detecting device has detected that the first hydraulic-pressure control mechanism is in the second abnormal state, the assist wait time being determined based on a temperature of a working fluid obtained by a temperature obtaining device of the brake system.
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