公开(公告)号：US20240253607A1

公开(公告)日：2024-08-01

申请号：US18570357

申请日：2022-06-27

Applicant: ADVICS CO., LTD.

Inventor： Kazuaki YOSHIDA ,  Miyu TAMURA

IPC: B60T8/28 ,  B60T8/171 ,  B60T8/172

CPC classification number: B60T8/28 ,  B60T8/171 ,  B60T8/172 ,  B60T2201/03 ,  B60T2250/00

Abstract: In the case where drive power of a vehicle is increased, a control device starts micro-braking control for generating a braking force on at least one wheel of a front wheel and a rear wheel. During execution of the micro-braking control, the control device estimates an efficacy factor that is a factor indicating a relationship of a magnitude of the braking force to a magnitude of a pressing force generated by a friction braking system. The control device estimates the efficacy factor for the wheel, to which the braking force is applied by the micro-braking control, on the basis of a deviation between generated drive power, which is based on a required value for a power source, and actual drive power actually acting on the vehicle, and the pressing force corresponding to the wheel, to which the braking force is applied by the micro-braking control.

公开(公告)号：US12017631B2

公开(公告)日：2024-06-25

申请号：US17417971

申请日：2019-12-25

Applicant: ADVICS CO., LTD.

Inventor： Kei Amamoto

IPC: B60T8/74

CPC classification number: B60T8/74 ,  B60T2270/10

Abstract: The present disclosure relates to a braking control device that executes an anti-skid control for reducing a braking force when a difference between a target deceleration and an actual deceleration of a vehicle is greater than or equal to a reference value in a braking state in which the braking force is applied to a wheel according to an increase in the target deceleration of the vehicle, the braking control device including a control unit that executes a specific control for reducing an intervention degree of the anti-skid control as a response delay of the actual deceleration with respect to the increase in the target deceleration in the braking state becomes larger.

公开(公告)号：US12017624B2

公开(公告)日：2024-06-25

申请号：US17288034

申请日：2019-11-18

Applicant: ADVICS CO., LTD.

Inventor： Masaki Maruyama ,  Yoshio Masuda ,  Shunya Watanabe

IPC: B60T13/66 ,  B60T8/17 ,  B60T13/68 ,  B60T13/62

CPC classification number: B60T13/662 ,  B60T8/17 ,  B60T13/686 ,  B60T13/62 ,  B60T2270/402 ,  B60T2270/82

Abstract: A vehicle braking device includes a first supply unit supplying fluid to main flow channels connected to wheel cylinders of a vehicle, a differential solenoid valve provided on the main flow channels and generating a differential pressure across the differential solenoid valve, a second supply unit supplying fluid to the wheel cylinders by drawing at least some fluid supplied from the first supply unit through branch flow channels branching off from the main flow channels upstream of the differential solenoid valve, and a setting unit setting a supply amount of fluid supplied from the first supply unit in accordance with a draw amount of fluid drawn by the second supply unit.

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

IPC: G06F7/70 ,  B60T8/172 ,  B60T8/32 ,  B60T8/88 ,  B60T8/96 ,  B60T17/22

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.

公开(公告)号：US11932218B2

公开(公告)日：2024-03-19

申请号：US17645365

申请日：2021-12-21

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

Inventor： Takahiro Okano ,  Yusuke Kamiya ,  Tatsushi Kobayashi ,  Shimpei Kodani

IPC: B60T17/22 ,  B60T7/04 ,  B60T8/171 ,  B60T8/172 ,  B60T8/40 ,  B60T8/88 ,  B60T8/94 ,  B60T8/96 ,  B60T13/14 ,  B60T13/66

CPC classification number: B60T17/221 ,  B60T7/042 ,  B60T8/171 ,  B60T8/172 ,  B60T8/4077 ,  B60T8/885 ,  B60T8/94 ,  B60T8/96 ,  B60T13/146 ,  B60T13/662 ,  B60T2220/04 ,  B60T2270/413

Abstract: A vehicle brake system, including: a first-braking-force control mechanism configured to control a first braking force, a second-braking-force control mechanism configured to control a second braking force, an abnormal-state detecting device configured to detect whether the first-braking-force control mechanism is in an abnormal state, a pseudo-abnormal-state detecting device configured to detect whether the first-braking-force control mechanism is in a pseudo abnormal state in which the first-braking-force control mechanism is suspected to be in the abnormal state, and a controller including a pseudo abnormal state controller configured to control the second-braking-force control mechanism in an operating state of the first-braking-force control mechanism so as to control the second braking force when the pseudo-abnormal-state detecting device detects that the first-braking-force control mechanism is in the pseudo abnormal state.

公开(公告)号：US11919493B2

公开(公告)日：2024-03-05

申请号：US16969746

申请日：2019-03-08

Applicant: ADVICS CO., LTD.

Inventor： Terushige Uraoka

IPC: B60T8/17 ,  B60T13/74 ,  B60T17/22 ,  B60T13/58

CPC classification number: B60T17/221 ,  B60T8/17 ,  B60T13/74 ,  B60T13/58 ,  B60T2270/413 ,  B60T2270/88

Abstract: A brake control device to be applied to a vehicle having a hydraulic brake generating a hydraulic braking force, which is a braking force converted from a fluid pressure to a wheel of the vehicle, and an electric parking brake generating an electric braking force, which is a braking force different from the hydraulic braking force, on the wheel by a wheel brake mechanism driven by a motor. The brake control device includes an electric parking brake controller for determining a current target value, which is a target value of an electric current through the motor, by using a target braking force, and for controlling the electric parking brake by using the current target value. The electric parking brake controller is configured to estimate the fluid pressure in the hydraulic brake by using a current detection value, which is a detection value of an electric current through the motor.

公开(公告)号：US11897477B2

公开(公告)日：2024-02-13

申请号：US17569003

申请日：2022-01-05

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

Inventor： Nobuyuki Itoh ,  Shogi Fukukawa

IPC: B60W30/20 ,  B60W30/18

CPC classification number: B60W30/20 ,  B60W30/18072 ,  B60W2030/1809 ,  B60W2030/203 ,  B60W2510/0614 ,  B60W2510/1005

Abstract: A control device installed in a vehicle comprising an electronic control unit configured to: accept a plurality of first requests from a driving assistance system; arbitrate the first requests; calculate a second request that is a physical amount that differs from the first requests based on a result of arbitration in which the first requests are arbitrated; and distribute the second request to at least one of a plurality of actuator systems, wherein the electronic control unit is configured to, when there is the first request requesting a driving force exceeding a first driving force necessary for recovery from a fuel cut state, perform arbitration such that an actual driving force generated by the vehicle is no greater than the first driving force, until reaching a driving force lower limit realizable by a powertrain actuator included in the actuator system at a current gear ratio.

公开(公告)号：US11878690B2

公开(公告)日：2024-01-23

申请号：US17439618

申请日：2020-03-11

Applicant: ADVICS CO., LTD.

Inventor： Hiroyuki Kato ,  Yosuke Hashimoto

IPC: B60W30/18 ,  B60W50/10

CPC classification number: B60W30/18109 ,  B60W50/10 ,  B60W2510/0638

Abstract: A start control device, which is a control device, includes: a first adjustment processing unit configured to execute a first adjustment process of instructing at least one of a brake device and a drive device to increase a braking/driving force when the braking/driving force is negative and the vehicle is stopped; and a second adjustment processing unit configured to start a second adjustment process of instructing at least one of the brake device and the drive device to increase the braking/driving force at a speed lower than an increasing speed of the braking/driving force before end of the first adjustment process on condition that the braking/driving force has become greater than or equal to a determination braking/driving force by the increase in the braking/driving force accompanying the execution of the first adjustment process.

公开(公告)号：US11807215B2

公开(公告)日：2023-11-07

申请号：US17251414

申请日：2019-06-21

Applicant: ADVICS CO., LTD.

Inventor： Masaki Maruyama ,  Shunya Watanabe

IPC: B60W20/14 ,  B60T13/66 ,  B60W10/08 ,  B60W10/188 ,  B60W10/192

CPC classification number: B60W20/14 ,  B60T13/662 ,  B60T13/667 ,  B60W10/08 ,  B60W10/188 ,  B60W10/192 ,  B60W2510/244 ,  B60W2710/182

Abstract: A brake control device is applied to a vehicle including a regenerative generator. The brake control device includes a pressure adjustment unit that includes an electric pump and a pressure adjustment valve, and that adjusts adjustment liquid pressure of a pressure adjustment fluid path between the electric pump and the pressure adjustment valve; and a controller that controls the electric pump and the pressure adjustment valve. The controller, before starting a replacement operation to replace a regenerative braking force by the regenerative generator with a friction braking force by the adjustment liquid pressure, performs preceding pressurization to increase the adjustment liquid pressure from “0” and maintain the adjustment liquid pressure at predetermined liquid pressure, and after performing the preceding pressurization, increases the adjustment liquid pressure more than the predetermined liquid pressure by increasing a rotation speed of the electric pump, and then execute the replacement operation.

公开(公告)号：US20230291268A1

公开(公告)日：2023-09-14

申请号：US18040530

申请日：2021-08-27

Applicant: ADVICS CO., LTD.

Inventor： Keisuke KIMURA ,  Nozomu SUMITOMO

IPC: H02K5/10 ,  F15B15/20 ,  F16J15/14

CPC classification number: H02K5/10 ,  F15B15/20 ,  F16J15/14

Abstract: A hydraulic pressure control device includes an electric motor including a motor main body portion, a conductive portion connecting a cavity of a substrate and the motor main body portion, and a covering portion covering a part of the conductive portion; a housing in which a through-hole for accommodating the covering portion is formed; a cap having a terminal insertion hole through which a motor terminal, which is a distal end portion of the conductive portion exposed from the covering portion, is inserted, and being fitted into the through-hole; and a seal member which is a cured product of a liquid sealing agent disposed between the cap and the covering portion to close the through-hole.