公开(公告)号：US09975531B2

公开(公告)日：2018-05-22

申请号：US15422078

申请日：2017-02-01

Applicant: ADVICS CO., LTD.

Inventor： Yoshiyuki Yasui ,  Hiroyuki Kodama ,  Naotoshi Satake

IPC: B60T8/17 ,  B60T8/172 ,  B60T8/171 ,  B60T7/04 ,  B60T8/173 ,  B60T13/58 ,  H02P3/06

CPC classification number: B60T8/17 ,  B60T7/042 ,  B60T8/171 ,  B60T8/172 ,  B60T8/173 ,  B60T13/586 ,  F16D61/00 ,  H02P3/06 ,  H02P7/28

Abstract: A vehicle brake control device includes an electric motor controlled based on a target energization amount calculated based on an operation amount (Bpa) of a braking operation member. Based on the operation amount (Bpa), it is determined whether or not an inertia compensation control for compensating for the influence of the inertia of a brake actuator is necessary. When the inertia compensation control is determined to be necessary, an inertia compensation energization amount for compensating for the influence of the inertia of the brake actuator is calculated based on a time-series pattern set in advance based on the maximum response of the brake actuator. Based on the inertia compensation energization amount, the target energization amount is calculated. The vehicle brake control device is thus able to generate a braking torque that appropriately compensates for the influence of the inertia of the entire device including the inertia of the electric motor.

公开(公告)号：US09969379B2

公开(公告)日：2018-05-15

申请号：US14812831

申请日：2015-07-29

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

Inventor： Masaki Nanahara ,  Masayasu Ohkubo ,  Kazutaka Noro ,  Masaki Ninoyu ,  Takahiro Okano

IPC: B60T17/22 ,  G01M3/28 ,  B60T7/04 ,  B60T13/14 ,  B60T13/66 ,  B60T13/68

CPC classification number: B60T17/221 ,  B60T7/042 ,  B60T13/146 ,  B60T13/662 ,  B60T13/686 ,  G01M3/2876

Abstract: A method for detecting fluid leakage from a pressure-decrease valve in a hydraulic brake system having an ABS device including: a shutoff valve for shutting off supply of a working fluid from a fluid-pressure supply source to a brake device provided for a wheel; the pressure-decrease valve for discharging the working fluid from the brake device; a reservoir for storing the working fluid discharged from the pressure-decrease valve; and a return pump for returning the working fluid stored in the reservoir to a portion between the shutoff valve and the fluid-pressure supply source, the method including the steps of: activating the return pump in a state in which the hydraulic brake system is not in ABS operation, and detecting the fluid leakage from the pressure-decrease valve based on a variation in a pressure of the working fluid in the fluid-pressure supply source caused when the return pump is activated.

公开(公告)号：US20180093653A1

公开(公告)日：2018-04-05

申请号：US15281820

申请日：2016-09-30

Applicant: ADVICS North America, Inc. ,  ADVICS CO., LTD.

Inventor： Marshall BULL ,  Shun TSUKAMOTO

IPC: B60T11/18 ,  B60T13/74 ,  B60T7/04

CPC classification number: B60T11/18 ,  B60T1/10 ,  B60T7/042 ,  B60T8/4077 ,  B60T13/745

Abstract: A braking control device controllable in cooperation with a regenerative brake includes a case member fixed to the master cylinder, a first electric motor fixed to the case member, a second electric motor fixed to the case member independently of the first electric motor, a linearly movable input rod mechanically connected to the braking operation member, an output rod which presses pistons in the master cylinder and which is linearly movable in parallel with a central axis of the input rod, a differential mechanism which receives output from the first and second electric motors, is allowed to relatively move between the input rod and the output rod, and is built in the case member, and a controller which controls the output from the first electric motor and the output from the second electric motor to independently control force acting on the input rod and displacement of the output rod.

公开(公告)号：US20180073584A1

公开(公告)日：2018-03-15

申请号：US15554050

申请日：2016-03-31

Applicant: ADVICS CO., LTD.

Inventor： Shun TSUKAMOTO ,  Koichi KOKUBO

IPC: F16D65/14 ,  B60T13/74 ,  B60T8/17

CPC classification number: F16D65/14 ,  B60T1/005 ,  B60T1/06 ,  B60T1/062 ,  B60T8/00 ,  B60T8/17 ,  B60T13/74 ,  F16D63/006 ,  F16D65/18 ,  F16D2125/40 ,  F16D2125/48 ,  F16D2127/06

Abstract: In an electric braking device for a vehicle, the following are carried out in order: a first lock process in which either torque for shifting the ratchet gear in a release direction is generated in an electric motor or the driving of the electric motor is stopped, while a pawl member is being pressed against a ratchet gear; a second lock process in which the rotational angle of the ratchet gear is brought to an angle different from a semi-engaging rotational angle by driving the electric motor; and a third lock process in which the ratchet gear is rotated in the release direction by driving the electric motor in reverse.

公开(公告)号：US09902385B2

公开(公告)日：2018-02-27

申请号：US15100035

申请日：2014-11-28

Applicant: ADVICS CO., LTD.

Inventor： Takahiro Okano ,  Masaki Ninoyu

IPC: B60T13/66 ,  B60T7/04 ,  B60T11/20 ,  B60T13/14 ,  B60T13/68 ,  B60T8/40

CPC classification number: B60T13/662 ,  B60T7/042 ,  B60T8/4077 ,  B60T11/20 ,  B60T13/146 ,  B60T13/686

Abstract: A vehicular braking device can shorten the time between pilot pressure input to a regulator and generation of servo pressure, and reduce product-by-product time variations for servo pressure generation. This vehicular braking device comprises: a servo pressure rising start time measurement unit that measures, in advance, a servo pressure rising start time which is the time from pilot pressure input to a first pilot chamber by opening a pressure increase valve to when a servo pressure starts to rise, and stores the servo pressure rising start time in a storage unit; a pilot pressure increase time calculation unit that calculates a pilot pressure increase time based on the servo pressure rising start time stored in advance in the storage unit; and a pre-fill control unit that increases the pilot pressure for the pilot pressure increase time by opening the pressure increase valve when brake pedal operation is detected.

公开(公告)号：US09873432B2

公开(公告)日：2018-01-23

申请号：US14747363

申请日：2015-06-23

Applicant: ADVICS CO., LTD. ,  DENSO CORPORATION

Inventor： Masayuki Naito ,  Tomokazu Kato ,  Kousuke Baba ,  Hiroaki Niino ,  Masayoshi Ooishi

IPC: G06F7/70 ,  G06F19/00 ,  G06G7/00 ,  G06G7/76 ,  B60W30/18 ,  B60W10/08 ,  B60W10/184 ,  A01B69/00 ,  B60L9/00 ,  B60L11/00 ,  G05D1/00 ,  G05D3/00 ,  G06F7/00 ,  G06F17/00 ,  B62D6/00 ,  B62D11/00 ,  B62D12/00 ,  B63G8/20

CPC classification number: B60W30/18063 ,  B60W10/08 ,  B60W10/184 ,  B60W2520/04 ,  B60W2520/28 ,  B60W2540/10 ,  B60W2540/12 ,  B60W2710/083 ,  B60W2710/182 ,  Y02T10/7258

Abstract: A control apparatus for a vehicle includes processing circuitry. The processing circuitry calculates a target torque such that the greater the amount of brake operation is, the smaller the target torque becomes. The processing circuitry controls the drive motor such that the creep torque is smaller when brake operation is being performed by the driver than when the brake operation is not being performed by the driver. The control circuitry controls the brake device such that, when the brake operation is being performed by the driver, the brake torque approaches a target brake torque. The processing circuitry sets a decrease gradient of the creep torque to be smaller than a decrease gradient of the target torque when the brake operation amount is increased under a condition in which the creep torque is being output by the drive motor.

公开(公告)号：US20170361851A1

公开(公告)日：2017-12-21

申请号：US15542556

申请日：2016-01-29

Applicant: ADVICS CO., LTD.

Inventor： Yusuke TAKEYA ,  Toshihisa KATO

IPC: B60W30/18 ,  B60W10/04 ,  B60W10/30 ,  B60W10/18 ,  B60W10/22

CPC classification number: B60W30/18181 ,  B60T7/04 ,  B60T7/12 ,  B60T2201/03 ,  B60T2220/04 ,  B60W10/04 ,  B60W10/18 ,  B60W10/22 ,  B60W10/30 ,  B60W2540/106 ,  B60W2710/09 ,  B60W2710/18 ,  B60W2710/226 ,  B60W2720/106 ,  F16F9/50 ,  G05G1/30

Abstract: This vehicle control device is provided with: a control unit for executing one-pedal control, that is, the control for accelerating a vehicle when a single pedal is depressed from a predetermined reference point of a pedal stroke, and for decelerating the vehicle when the pedal is released from the reference point; and a determination unit for determining whether or not a rate of change in a pedal operation amount when the pedal is released is equal to or greater than a first threshold value. The control unit performs control for increasing a braking force when the rate of change is equal to or greater than the first threshold value.

公开(公告)号：US20170361815A1

公开(公告)日：2017-12-21

申请号：US15542242

申请日：2016-01-29

Applicant: ADVICS CO., LTD.

Inventor： Kazuya MORISHITA

IPC: B60T8/172 ,  B60T13/74 ,  H02P31/00

CPC classification number: B60T8/172 ,  B60T7/042 ,  B60T8/175 ,  B60T8/404 ,  B60T8/405 ,  B60T13/146 ,  B60T13/662 ,  B60T13/686 ,  B60T13/745 ,  H02P31/00 ,  H02P2205/00

Abstract: In the case of this brake control device, for example, a drive control unit is capable of executing, in a switching manner, drive control of a motor based on an operation amount and drive control of the motor based on a stored value in a storage unit. The drive control unit continues the drive control of the motor based on the operation amount until the operation amount reaches a state satisfying a predetermined convergence condition while the drive control of the motor based on the operation amount is being executed. The storage unit stores a parameter value, which is obtained in the state in which the operation amount satisfies the predetermined convergence condition, into the storage unit as the stored value.

公开(公告)号：US09802592B2

公开(公告)日：2017-10-31

申请号：US14717559

申请日：2015-05-20

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

Inventor： Takahiro Okano ,  Daisuke Nakata ,  Yusuke Kamiya

IPC: G06F7/70 ,  G06F19/00 ,  G06G7/00 ,  G06G7/76 ,  B60T13/66 ,  B60T8/171 ,  B60T8/32 ,  B60T13/68 ,  B60T8/34 ,  B60T13/14 ,  B60T7/04

CPC classification number: B60T13/662 ,  B60T7/042 ,  B60T8/171 ,  B60T8/326 ,  B60T8/34 ,  B60T13/142 ,  B60T13/146 ,  B60T13/686

Abstract: The brake control device comprises a control mode selecting portion 64 which selects one control mode based on a detection result of the detecting portion from a control mode group including at least two control modes which are a responsiveness priority mode which gives more priority to a responsiveness of the braking force relative to an operation of a brake operating member than to a suppression of an operating noise occurred upon the generation of the preparatory hydraulic pressure and a serenity priority mode which gives more priority to the suppression of the operating noise than to the responsiveness of the braking force. The hydraulic pressure control portion controls the hydraulic pressure generating device to generate the preparatory hydraulic pressure in response to the control mode selected by the control mode selecting portion.

公开(公告)号：US20170297453A1

公开(公告)日：2017-10-19

申请号：US15516313

申请日：2015-10-19

Applicant: ADVICS CO., LTD.

Inventor： Yosuke HASHIMOTO

IPC: B60L15/20 ,  B60L3/10 ,  B60L3/00 ,  B60L3/12 ,  B60T7/12

CPC classification number: G05D3/12 ,  B60L3/0076 ,  B60L3/0084 ,  B60L3/108 ,  B60L3/12 ,  B60L15/2018 ,  B60L15/2045 ,  B60T7/12 ,  B60T8/175 ,  B60T2201/10 ,  B60W30/14 ,  G05D1/02 ,  G05D1/0212 ,  G05D1/12 ,  G05D2201/0213 ,  Y02T10/7258

Abstract: A traveling control apparatus includes an operation amount calculating unit for calculating the amount of operations for controlling at least one of a driving mechanism and a braking mechanism of a vehicle to make the difference between a target position and the actual position of the vehicle small; a determining unit for determining whether the actual position follows the target position; and a target position setting unit for setting the target position that changes with time passage, when it is determined by the determining unit that the actual position follows the target position. The target position setting unit sets the target position so a change in the target position with the time passage becomes smaller than that in the case where it is determined that the actual position follows the target position, when it is determined by the determining unit that the actual position does not follow the target position.