公开(公告)号：US20190202308A1

公开(公告)日：2019-07-04

申请号：US15998744

申请日：2017-02-15

Applicant: ADVICS CO., LTD.

Inventor： Yuki Ota

IPC: B60L15/20 ,  H02P27/08 ,  H02P29/64 ,  H02P29/68

CPC classification number: B60L15/20 ,  B60L2220/00 ,  B60T7/122 ,  B60T8/00 ,  B60T8/17 ,  B60T8/175 ,  B60T8/4081 ,  B60T2201/06 ,  B60Y2200/91 ,  H02P23/00 ,  H02P27/085 ,  H02P29/64 ,  H02P29/68 ,  Y02T10/642

Abstract: A motor control device is provided with: an electric motor which drives an applying mechanism for applying torque to the wheels of a vehicle, and has three coils; a drive circuit that supplies current individually to the three coils; and a controller that controls the drive circuit on the basis of the operation amount of an operating member of the vehicle, and adjusts the output of the electric motor. When the vehicle is stopped, the controller executes swing control to periodically increase or decrease the rotary motion of the electric motor, even if the constant state of the operation amount is continued after the operation amount is constant, and the power generated by the applying mechanism and the power received by the applying mechanism are equalized and the rotary motion of the electric motor has stopped.

公开(公告)号：US20190118784A1

公开(公告)日：2019-04-25

申请号：US16090771

申请日：2017-04-07

Applicant: ADVICS CO., LTD.

Inventor： Yoshiyuki Yasui

IPC: B60T8/17 ,  B60T17/22 ,  B60T8/48

Abstract: A braking control device generates a force for pressing a friction member against a rotating member fixed to a wheel of the vehicle via an electric motor controlled by a controller in accordance with an operation amount of an operation member. A pressing force sensor detects a pressing force actual value, and a rotation angle sensor detects a rotation angle actual value of the motor. The controller determines whether an operating state of the pressing force sensor is appropriate. When the operating state is appropriate, the motor output is adjusted based on the pressing force actual value, a correlation between the pressing force actual value and the rotation angle actual value is stored, and a conversion calculation map is created based on the correlation. When the operating state is not appropriate, the motor output is adjusted based on the rotation angle actual value and the conversion calculation map.

公开(公告)号：US20190077385A1

公开(公告)日：2019-03-14

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

CPC classification number: B60T8/4077 ,  B60T7/042 ,  B60T8/00 ,  B60T8/17 ,  B60T8/1701 ,  B60T13/146 ,  B60T13/662 ,  B60T13/686 ,  B61H1/00

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.

公开(公告)号：US20190039603A1

公开(公告)日：2019-02-07

申请号：US16072805

申请日：2016-09-29

Applicant: ADVICS CO., LTD.

Inventor： Yosuke HASHIMOTO

IPC: B60W30/045 ,  B60T8/1755 ,  B60W10/04 ,  B60W10/184 ,  B60W50/00

Abstract: A vehicle driving assistance device has an estimation unit for separately estimating the temperatures of the braking portions in the left and right drive wheels, a first execution unit for executing vehicle stabilization control for separately controlling the braking forces exerted on the vehicle wheels, and a second execution unit for executing turning assist control for exerting braking force on the inside drive wheel of the left and right drive wheels when the vehicle is turning while vehicle stabilization control is not being executed. During turning assist control, the braking force exerted on the inside drive wheel when the difference in pad temperatures between the left and right drive wheels is equal to or greater than a reduction determination value is reduced to a greater extent than the braking force exerted on the inside drive wheel when the pad temperature difference is less than the reduction determination value.

公开(公告)号：US10196049B2

公开(公告)日：2019-02-05

申请号：US15535673

申请日：2015-11-16

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

Inventor： Hiroshi Nakaoka ,  Kiyoyuki Uchida ,  Masaki Maruyama

IPC: B60T8/32 ,  B60T8/18 ,  B60T8/17 ,  B60T13/74 ,  B60T15/36 ,  B60T8/1755 ,  B60T13/14 ,  B60T15/02 ,  B60T8/40

Abstract: A hydraulic brake system, including: a brake operation member; a brake device; a master cylinder; a communication switching valve; a low-pressure-source shut-off valve; a high-pressure source; a regulator; a pressure adjuster; and a controller, wherein, when a pressurizing state of the master cylinder is switched from a first pressurizing state to a second pressurizing state after initiation of an operation on the brake operation member, the controller executes a pressurizing-state switching control in which switching of a state of the low-pressure-source shut-off valve from an open state to a closed state and switching of a state of the communication switching valve from a closed state to an open state are carried out after a pressure-regulating state of the regulator has been switched from a first pressure-regulating state to a second pressure-regulating state by controlling the pressure adjuster to increase a second pilot pressure while the first pressurizing state is maintained.

公开(公告)号：US20190023248A1

公开(公告)日：2019-01-24

申请号：US16070838

申请日：2017-01-18

Applicant: ADVICS CO., LTD.

Inventor： Yoshiyuki Yasui

IPC: B60T13/74 ,  F16D65/18 ,  B60T7/04 ,  B60T13/02

CPC classification number: B60T13/741 ,  B60T7/042 ,  B60T13/02 ,  F16D55/226 ,  F16D65/18 ,  F16D65/183 ,  F16D2066/005 ,  F16D2121/18 ,  F16D2121/24

Abstract: This electric braking device is provided with: an electric motor MTR that, in accordance with an operation amount Bpa of a braking operation member BP caused by the driver of the vehicle, generates a pressing force Fba, being a force pressing a friction member MSB against a rotary member KTB that rotates integrally with a wheel WHL of the vehicle; a caliper CRP fixed to the electric motor MTR; a circuit board KBN to which a microprocessor MPR and a bridge circuit BRG are mounted, such that the electric motor MTR is driven; and a motor pin PMT that feeds power from the circuit board KBN to the electric motor MTR. The motor pin PMT penetrates a holding member HJB and is pressed into the circuit board KBN, which is fixed to the caliper CRP by the holding member HJB and the motor pin PMT.

公开(公告)号：US20190003536A1

公开(公告)日：2019-01-03

申请号：US16064045

申请日：2016-12-21

Applicant: ADVICS CO., LTD.

Inventor： Yoshiyuki YASUI

IPC: F16D63/00 ,  F16D65/22 ,  F16D65/18 ,  B60T13/74 ,  B60T8/1761 ,  B60T7/12

CPC classification number: F16D63/002 ,  B60T1/005 ,  B60T7/042 ,  B60T7/12 ,  B60T8/17 ,  B60T8/17613 ,  B60T13/741 ,  B60T13/745 ,  F16D55/226 ,  F16D63/006 ,  F16D65/18 ,  F16D65/183 ,  F16D65/22 ,  F16D2121/24 ,  F16D2125/40 ,  F16D2127/06

Abstract: A vehicular electrical braking device equipped with a control means for driving an electric motor and a lock mechanism, the electric motor pressing a friction member against a rotary member, and the lock mechanism applying parking brake. The control means comprises steps of: calculating an instruction pressure force on the basis of the amount of brake operation; calculating a parking pressure force on the basis of a parking signal; determining as a target pressure force the greater one of the instruction pressure force and the parking pressure force; adjusting the amount of power to be applied to the electrical motor such that an actual pressure force matches the target pressure force on the basis of the target pressure force and the actual pressure force; and controlling the operation of the lock mechanism on the basis of the actual pressure force.

公开(公告)号：US20180354486A1

公开(公告)日：2018-12-13

申请号：US15778495

申请日：2016-11-24

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

Inventor： Yoshio MASUDA ,  Takahiro OKANO

IPC: B60T17/22 ,  G07C5/08 ,  B60T13/16 ,  B60T13/68 ,  B60T15/02

CPC classification number: B60T17/22 ,  B60T8/17 ,  B60T13/161 ,  B60T13/686 ,  B60T15/028 ,  B60T2220/04 ,  G07C5/0808

Abstract: An abnormality diagnosis device to be used in a vehicle braking device equipped with a low pressure source connected to a reaction force chamber in a predetermined condition, a master cylinder, a drive portion, and a control portion. The abnormality diagnosis device includes: a diagnosis portion for performing an abnormality diagnosis on the basis of the relationship between the reaction force hydraulic pressure and the operation amount of a braking operation member, and/or the relationship between a target value and an actual value; and a judging portion for judging whether or not the reaction force chamber state pertaining to the hydraulic pressure and/or fluid amount thereof is in a predetermined insufficient state or in a predetermined excess state. Furthermore, when the judging portion judges that the reaction force chamber state is in a predetermined insufficient state or in a predetermined excess state, the diagnosis portion stops the abnormality diagnosis.

公开(公告)号：US20180339683A1

公开(公告)日：2018-11-29

申请号：US15759721

申请日：2016-09-29

Applicant: ADVICS CO., LTD.

Inventor： Masaki NINOYU

IPC: B60T8/172 ,  B60T13/66

CPC classification number: B60T8/172 ,  B60T7/042 ,  B60T8/17 ,  B60T8/4077 ,  B60T8/409 ,  B60T13/146 ,  B60T13/148 ,  B60T13/662 ,  B60T2201/03

Abstract: A hydraulic pressure braking force generation device is provided with a first control unit for performing control for inhibiting excessive responses in which the input pressure is controlled such that the output pressure is within a first region set using a braking target oil pressure as a reference, a second control unit for performing control for responsiveness in which the increase speed or decrease speed of the input pressure is increased so as to be larger than that in the control for inhibiting excessive responses, to cancel response delay and a switching unit which, on the basis of the state of the braking target oil pressure, switches between the control for inhibiting excessive responses performed by the first control unit and the control for responsiveness performed by the second control unit.

公开(公告)号：US10138960B2

公开(公告)日：2018-11-27

申请号：US15101281

申请日：2014-12-04

Applicant: ADVICS CO., LTD.

Inventor： Yoshiyuki Yasui ,  Shinichiro Yukoku ,  Naomi Emura

IPC: F16D63/00 ,  F16D65/18 ,  B60T13/74 ,  F16D55/226 ,  F16D121/24 ,  F16D125/40 ,  F16D125/48 ,  F16D125/52 ,  F16D127/06 ,  F16D129/08

Abstract: The present invention is provided with a power transmission member rotatably supported by a caliper, and a ratchet wheel fixed by the member. A first linear direction movement of a pawl member that engages with a mobile member of a solenoid is guided by a guide member fixed by the caliper. The pawl member is continuously pressed in a release direction by an elastic member. The interlocking force in an interlocking direction, imparted by mobile member of the solenoid mobile member to the pawl member, and the release force in the release direction, which is imparted by the elastic member to the pawl member oppose each other, and the interlocking force is larger than the release force. The pawl member and the mobile member move linearly together in one of the interlocking direction and the release direction.