公开(公告)号：US20220410855A1

公开(公告)日：2022-12-29

申请号：US17778984

申请日：2020-11-25

Applicant: ADVICS CO., LTD.

Inventor： Masato TERASAKA ,  Chisa KITAHARA

IPC: B60T8/1761 ,  B60T8/172 ,  B60T8/1769

Abstract: A braking control device includes: a wheel deceleration deriving section that derives decrease rates of wheel speed detection values as wheel deceleration calculation values; an average value deriving section that derives an average value of the wheel deceleration calculation values of wheels FL, FR, RL, and RR as a wheel deceleration average value; a determination section that determines, based on the wheel deceleration average value and an anteroposterior deceleration detection value, whether or not a slip increase state has been occurring for a determination time or longer; and a detection section that detects occurrence of cascade lock when it is determined that the slip increase state has been occurring for the determination time or longer during vehicle braking.

公开(公告)号：US11524669B2

公开(公告)日：2022-12-13

申请号：US16711994

申请日：2019-12-12

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

Inventor： Hayato Kubota ,  Daisuke Nakata

IPC: B60T8/32 ,  B60W10/188 ,  B60W10/192 ,  B60T13/66 ,  B60W20/14 ,  B60W10/18

Abstract: A brake controller according to the present disclosure that changes an effect correlation value correlating to an effect of braking in a first braking system provided in a vehicle in accordance with a vehicle condition of the vehicle includes a control part generating a braking force by at least one of the first braking system and a second braking system different from the first braking system in a case where the vehicle condition is a first condition based on a braking distribution ratio different from that in a case where the vehicle condition is a second condition and a setting part setting the effect correlation values so as to be different from each other in the case where the vehicle condition is the first condition and in the case where the vehicle condition is the second condition.

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

IPC: B60T8/88 ,  B60T13/66

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.

公开(公告)号：US11472382B2

公开(公告)日：2022-10-18

申请号：US16620684

申请日：2018-06-29

Applicant: ADVICS CO., LTD.

Inventor： Tatsuya Hiromura ,  Yukio Mori ,  Masayuki Asano

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

Abstract: A control device is applied to a vehicle that has a braking device configured to be able to adjust the braking force applied to the vehicle. The control device has a stopping braking force imparting unit that controls the braking device in order to apply a stopping braking force to the vehicle, as a minimum value of the braking force required to keep the vehicle stopped. The control device also has a deviation quantity deriving unit that derives a deviation quantity between a state quantity of the vehicle obtained when the stopping braking force is applied to the vehicle by the stopping braking force imparting unit and an ideal value of the state quantity of the vehicle. The control device also has a stopping braking force updating unit that updates the stopping braking force on the basis of the deviation quantity derived by the deviation quantity deriving unit.

公开(公告)号：US20220324426A1

公开(公告)日：2022-10-13

申请号：US17640876

申请日：2020-09-17

Applicant: ADVICS CO., LTD.

Inventor： Yasunori SAKATA ,  Akihito KUSANO

IPC: B60T8/94 ,  B60T17/22 ,  B60T13/68

Abstract: A vehicle braking device includes a first supply device that supplies brake fluid to wheel cylinders, a first supply path that connects the first supply device and the wheel cylinders, and first and second electromagnetic valves provided on the first supply path. The first electromagnetic valve is disposed on the first supply path such that a seating direction of the first electromagnetic valve and a brake fluid supply direction are opposite each other, the seating direction is a direction in which a valve body is seated on a valve seat, and the brake fluid supply direction is a direction in which the brake fluid flows from the first supply device to the wheel cylinders through the first supply path. The second electromagnetic valve is disposed on the first supply path such that a seating direction of the second electromagnetic valve and the brake fluid supply direction are the same.

公开(公告)号：US11469698B2

公开(公告)日：2022-10-11

申请号：US17273431

申请日：2019-09-03

Applicant: ADVICS CO., LTD.

Inventor： Hikaru Kawamura ,  Tomoya Takahashi

IPC: H02P21/18 ,  H02P21/22 ,  H02P21/24 ,  H02P6/18 ,  G01R19/165

Abstract: A motor control device includes an acquisition unit that obtains a q-axis current component of a current vector generated when electricity is supplied to a brushless motor to generate a voltage vector along a direction of an estimated d-axis; a correction unit that corrects the direction of the estimated d-axis according to the q-axis current component to approach the direction of the estimated d-axis approach to the direction of the actual d-axis; and a control axis changing unit that changes the estimated d-axis direction by a prescribed angle when a magnitude of the q-axis current component is less than a threshold value by the correction of the direction of the estimated d-axis by the correction unit for the first time after the control axis setting control start or when a magnitude of the q-axis current component is less than the threshold value at the control axis setting control start.

公开(公告)号：US11458940B2

公开(公告)日：2022-10-04

申请号：US16577426

申请日：2019-09-20

Applicant: Toyota Jidosha Kabushiki Kaisha ,  Advics Co., Ltd.

Inventor： Masahiro Hara ,  Hiroaki Nagase ,  Kei Amamoto

IPC: B60T8/1761 ,  B60T8/1755

Abstract: A brake ECU sets target slippage degrees of three wheels other than the front outer wheel to the slippage degree of the front outer wheel and feedback-controls the braking forces of the three wheels such that the actual slippage degrees of the three wheels approach the target slippage degrees. The brake ECU computes a correction amount for the slip ratio deviation of the front inner wheel such that the slip ratio deviation becomes zero. The brake ECU multiplies the correction amount for the slip ratio deviation by a load ratio and uses the resultant value as a correction amount for the slip ratio deviation of the rear inner wheel. The brake ECU corrects the slip ratio deviation by using the computed correction amount.

公开(公告)号：US20220289219A1

公开(公告)日：2022-09-15

申请号：US17690599

申请日：2022-03-09

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

Inventor： Kazuki MIYAKE ,  Yusuke SUETAKE ,  Atsushi KUCHINOMACHI

IPC: B60W50/06 ,  B60W10/04 ,  B60W10/18

Abstract: A manager installed in a vehicle includes: a first accepting unit that accepts a plurality of kinematic plans from a plurality of ADAS applications; an arbitration unit that arbitrates the kinematic plans; a calculation unit that calculates a motion request based on an arbitration result by the arbitration unit; and a distribution unit that distributes the motion request to at least one actuator system, wherein the first accepting unit accepts information relating to the actuator system to which the distribution unit distributes the motion request from the ADAS applications, along with the kinematic plans.

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

IPC: B60T17/22 ,  B60T13/58 ,  B60T13/74

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.

公开(公告)号：US20220281321A1

公开(公告)日：2022-09-08

申请号：US17633313

申请日：2020-08-03

Applicant: ADVICS CO., LTD.

Inventor： Kazutoshi YOGO ,  Akihito KUSANO

IPC: B60L7/24 ,  B60T13/68 ,  B60T13/66 ,  B60T13/14

Abstract: A braking control device includes an “electrically driven pressure control unit YC”, “front-wheel and rear-wheel supply paths HKf and HKr that supply a brake fluid BF pressurized by the pressure control unit YC to front-wheel and rear-wheel wheel cylinders CWf and CWr”, “front-wheel and rear-wheel supply valves VKf and VKr provided in the front-wheel and rear-wheel supply paths HKf and HKr”, and a “controller ECU that drives the pressure control unit YC and the front-wheel and rear-wheel supply valves VKf and VKr”. In the braking control device, at least one of the front-wheel and rear-wheel supply valves VKf and VKr is a linear valve.