公开(公告)号：US11541853B2

公开(公告)日：2023-01-03

申请号：US16496615

申请日：2018-03-29

Applicant: ADVICS CO., LTD.

Inventor： Kenichiro Takahashi ,  Kosuke Hashimoto ,  Hayato Kubota ,  Daisuke Nakata

IPC: B60T8/17 ,  B60L7/26 ,  B60T8/172 ,  B60T8/32 ,  B60T13/58 ,  B60T13/74

Abstract: Provided is a vehicle braking control device applicable to a vehicle equipped with an electric-powered parking braking device, a hydraulic braking device and a regenerative braking device. The braking control device comprises a first braking control unit and a second braking control unit. When a parking braking operation is performed while the vehicle is travelling, the first braking control unit implements a first braking process which increases the braking force to the vehicle by operating the hydraulic braking device. When the braking force to the vehicle needs to be increased in a situation where the first braking process is being implemented, the second braking control unit implements a second braking process which increases the braking force to the vehicle by operating the regenerative braking device.

公开(公告)号：US10549641B2

公开(公告)日：2020-02-04

申请号：US15758553

申请日：2016-09-28

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

Inventor： Takahiro Okano ,  Daisuke Nakata

IPC: B60L7/26 ,  B60L7/18 ,  B60L15/20 ,  B60T8/172 ,  B60T13/66 ,  B60T13/74 ,  B60T8/32 ,  B60T8/72

Abstract: A braking device for a vehicle includes a friction brake device, a regeneration bake device, a control portion which controls the friction braking force and the regeneration braking force through a cooperative control and a state judging portion which judges whether a vehicle state is in a stopped state or a non-braking operation state where the braking operation is not performed, The control portion executes a factor change control which suppresses an increase of change inclination of the friction braking force by changing a factor relating to a friction used when the hydraulic pressure is converted into the friction braking force to an increasing side and returns the factor to a value at a non-operation of the factor change control when the vehicle state is judged to be in the stopped state or the non-braking operation state by the state judging portion.

公开(公告)号：US10065619B2

公开(公告)日：2018-09-04

申请号：US15114798

申请日：2014-12-25

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

Inventor： Masaki Ninoyu ,  Takahiro Okano ,  Yusuke Kamiya ,  Daisuke Nakata ,  Masaaki Komazawa

IPC: B60T13/135 ,  B60T13/66 ,  B60T8/40 ,  B60T7/04 ,  B60T13/14 ,  B60T13/68

Abstract: A vehicle control device which is applicable to a vehicle brake device, controls the pressure increasing control valve and the pressure-decreasing control valve so that an actual servo pressure detected by the servo pressure sensor becomes a target servo pressure; and controls so as to increase the target servo pressure by a predetermined amount, while the brake actuator is executing the braking control which accompanies a brake fluid pumping back control wherein the brake fluid supplied to the wheel cylinder is pumped back to the master cylinder by the built-in pump.

公开(公告)号：US09937911B2

公开(公告)日：2018-04-10

申请号：US15112846

申请日：2015-01-29

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

Inventor： Masaki Ninoyu ,  Takahiro Okano ,  Yusuke Kamiya ,  Daisuke Nakata ,  Masaaki Komazawa

IPC: B60T13/66 ,  B60T8/1761 ,  B60T8/40 ,  B60T7/04 ,  B60T13/14 ,  B60T13/68

CPC classification number: B60T13/662 ,  B60T7/042 ,  B60T8/17616 ,  B60T8/4077 ,  B60T13/146 ,  B60T13/147 ,  B60T13/686

Abstract: A vehicle control device which is applicable to a vehicle brake device, controls the pressure increasing control valve and the pressure decreasing control valve so that an actual servo pressure detected by the servo pressure sensor becomes a target servo pressure and sets a control dead zone in which a control of the pressure increasing control valve and the pressure decreasing control valve is prohibited to be an area which has a first predetermined width from the target servo pressure when a normal braking operation is performed and sets the control dead zone to be an area which has a second predetermined width, wider than the first predetermined width when the brake actuator executes the braking control which accompanies a brake fluid pumping back control, wherein the brake fluid supplied to the wheel cylinder is returned to the master cylinder by pumping back operation of the built-in pump.

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：US20180319383A1

公开(公告)日：2018-11-08

申请号：US15773827

申请日：2016-11-25

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

Inventor： Takahiro Okano ,  Daisuke Nakata

IPC: B60T8/1755 ,  B60T8/172 ,  B60T7/04

CPC classification number: B60T8/17551 ,  B60T7/042 ,  B60T8/00 ,  B60T8/17 ,  B60T8/172 ,  B60T8/4077 ,  B60T13/146 ,  B60T13/147 ,  B60T13/662 ,  B60T13/686 ,  B60T2220/04 ,  B61H1/00

Abstract: The vehicle braking device performs a control which makes an actual value of physical quantity associated with a braking force follow a target value thereof when the actual value is outside a dead zone and a control which suppresses a change of the actual value when the actual value is within the dead zone and includes a judging portion which judges whether or not the actual value passes through the dead zone with a value beyond the upper limit threshold value and a setting portion which sets a second upper limit threshold value more closely approximated than a first upper limit threshold value when the actual value is judged not to pass through the dead zone, as the upper limit threshold value, when the actual value is judged to pass through the dead zone by the judging portion.

公开(公告)号：US20170182990A1

公开(公告)日：2017-06-29

申请号：US15115496

申请日：2014-12-25

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

Inventor： Masaki Ninoyu ,  Takahiro Okano ,  Yusuke Kamiya ,  Daisuke Nakata ,  Masaaki Komazawa

IPC: B60T13/68 ,  B60T13/74 ,  B60T8/48

CPC classification number: B60T13/686 ,  B60T7/042 ,  B60T8/172 ,  B60T8/1755 ,  B60T8/4077 ,  B60T8/489 ,  B60T13/146 ,  B60T13/147 ,  B60T13/662 ,  B60T13/745

Abstract: A vehicular brake device that implements ESC/TRC control suppresses hydraulic pressure variations produced during open/close control of a brake actuator holding valve or depressurizing valve. While a brake operating member is not operated and a wheel cylinder pressure supplying control is executed to supply target wheel cylinder pressure to respective wheel cylinders, the target servo pressure is set to a first predetermined target servo pressure smaller than a maximum output pressure of the servo pressure generating device. When wheel cylinder pressure supplying control starts, the target servo pressure is set as the target wheel cylinder maximum value when a firstly occurred rising inclination of the target wheel cylinder maximum value is equal to or more than a minimum increment of an output of the servo pressure generating device per unit time and at the same time when the target wheel cylinder pressure is below the first determined target servo pressure.

公开(公告)号：US11376967B2

公开(公告)日：2022-07-05

申请号：US16324086

申请日：2017-07-19

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

Inventor： Daisuke Nakata ,  Kosuke Hashimoto ,  Kenji Sakamoto

IPC: B60L7/26 ,  B60T8/17 ,  B60W20/14 ,  B60W10/192 ,  B60L7/24 ,  B60W10/08 ,  B60W10/18 ,  B60W10/188 ,  B60T13/16 ,  B60T13/58

Abstract: This vehicle brake device performs raising processing for raising, by a predetermined raising amount, the target hydraulic pressure of hydraulic fluid when the pressure of the hydraulic fluid starts increasing in order to suppress a delay in response to the increase in the pressure of hydraulic fluid during switching processing for gradually switching at least part of regenerative braking force to hydraulic braking force, and includes a judging portion which judges whether or not required braking force or deceleration is reduced during cooperative control; and a raising amount setting portion which during the raising processing, sets a second predetermined pressure as a raising amount if the judgement result of the judging portion is positive, the second predetermined pressure being smaller than a first predetermined pressure that is the raising amount when the determination result of the determination result is negative.

公开(公告)号：US11072243B2

公开(公告)日：2021-07-27

申请号：US16330781

申请日：2017-07-25

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

Inventor： Daisuke Nakata ,  Kosuke Hashimoto ,  Kenji Sakamoto

IPC: B60L7/26 ,  B60T8/17 ,  B60L7/24 ,  B60L7/18 ,  B60T13/58

Abstract: A vehicle braking device sets a target hydraulic braking force based on the difference between the execution regeneration braking force, which is actually generated regeneration braking force and the requested braking force which is to be applied to the vehicle wheels and includes a hydraulic pressure control portion that raises the target hydraulic braking force by a predetermined value at a timing when the difference between the execution regeneration braking force and the maximum value thereof is equal to or less than a judgement threshold value and a threshold value setting portion that sets the judgement threshold value on the basis of the requested braking force gradient when the liquid amount inside the hydraulic chamber is less than a predetermined amount, and sets the judgement threshold value on the basis of the target hydraulic braking force gradient when the liquid amount is equal to or more than the predetermined amount.

公开(公告)号：US10703348B2

公开(公告)日：2020-07-07

申请号：US15765595

申请日：2016-10-21

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

Inventor： Takahiro Okano ,  Daisuke Nakata ,  Masaki Ninoyu

IPC: B60T8/40 ,  B60T8/17 ,  B60T7/04 ,  B60T13/14 ,  B60T13/66 ,  B61H1/00 ,  B60T13/68 ,  B60T8/00

Abstract: The hydraulic pressure control includes a valve portion which adjusts a fluid flowing into or flowing out of a hydraulic pressure chamber, a state judging portion which judges whether or not a state of the hydraulic pressure chamber is in a state in which the actual pressure is increasing even the holding signal has been inputted to the valve portion and a control portion which executes a specific control which keeps the actual pressure to the hydraulic pressure within the dead zone when the state judging portion judges that the state of the hydraulic pressure chamber is in a state that the actual pressure fluctuates even the holding signal has been inputted to the valve portion.