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公开(公告)号：US20200290578A1
公开(公告)日：2020-09-17
申请号：US16767924
申请日：2018-11-29
Applicant: ADVICS CO., LTD.
Inventor： Masato TERASAKA , Chisa KITAHARA
IPC: B60T8/1764 , B60T8/1755 , B60T13/74 , B60T8/24
Abstract: In the case that the road surface is determined to have different friction coefficients on the left and right wheels, this braking control device performs antiskid control for adjusting the increase slope of front wheel braking torque on the side with the higher friction coefficient. A steering angle sensor detects the steering angle, and a yaw rate sensor detects the yaw rate. The device calculates a reference turning amount on the basis of the steering angle, calculates an actual turning amount on the basis of the yaw rate, and sets the increase slope on the basis of the deviation between the reference turning amount and the actual turning amount. Also, if this deviation becomes larger, a correction is made such that the set increase slope becomes smaller. Further, if the deviation becomes smaller, a correction is made such that the set increase slope becomes larger.
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公开(公告)号：US10773696B2
公开(公告)日：2020-09-15
申请号：US15761581
申请日：2016-09-28
Applicant: ADVICS CO., LTD.
Inventor： Yusuke Takeya , Kosuke Hashimoto , Shun Nohira
Abstract: In the present invention, a brake device is equipped with: differential pressure control valves; pressure adjusting units which are connected to the differential pressure control valves through liquid passages; and a control device which controls the WC pressure Pwc in wheel cylinders by operating the differential pressure control valves and the pressure adjusting units. When predetermined suppression control permission conditions are satisfied while both the supply pumps of the pressure adjusting units and the differential pressure control valves are in operation, the control device performs self-excited vibration suppression control over the differential pressure control valves, the self-excited vibration suppression control being carried out in such a manner that a valve element separated from a valve seat is caused to abut on the valve seat, and, upon abutting on the valve seat, the valve element is separated from the valve seat.
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公开(公告)号：US20200223404A1
公开(公告)日：2020-07-16
申请号：US16679510
申请日：2019-11-11
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , ADVICS CO., LTD.
Inventor： Masayuki ASANO
IPC: B60T7/12
Abstract: A driving support system installed on a vehicle includes a sensor detecting a vehicle state, a braking device, and a control device. The control device determines, based on the vehicle state, whether or not a first condition suggesting roll back of the vehicle is satisfied, and whether or not a second condition more strongly suggesting the roll back of the vehicle than the first condition is satisfied after the first condition is satisfied. When the second condition is satisfied after the first condition is satisfied, the control device executes roll back suppression control that controls the braking device to generate a braking force such that the vehicle stops. During a period from when the first condition is satisfied to when the second condition is satisfied, the control device executes precharge control that decreases play in the braking device without starting the roll back suppression control.
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公开(公告)号：US20200216072A1
公开(公告)日：2020-07-09
申请号：US16628369
申请日：2018-07-31
Applicant: ADVICS CO., LTD.
Inventor： Mako NOGUCHI
IPC: B60W30/18 , B60W10/04 , B60W40/105
Abstract: A vehicle speed control device executes a reverse speed control that controls the speed of the vehicle when reversing, on the basis of a target speed VST that is set in accordance with a control operation when the reverse range is selected using the shift device of the vehicle. During the reverse speed control, the vehicle speed control device calculates (S107) so as to reduce a target acceleration ACT, which is a target value for acceleration of the vehicle when the vehicle speed when reversing is increased toward the target speed VST, as the operation amount of the steering wheel increases.
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公开(公告)号：US20200055502A1
公开(公告)日：2020-02-20
申请号：US16484533
申请日：2018-02-26
Applicant: ADVICS CO., LTD.
Inventor： Terushige URAOKA
Abstract: A vehicle braking control device is capable of further raising the speed at which vehicle vehicle-body deceleration increases when automatic braking processing implementation begins. Provided as a braking control device is a control device comprising: an acquisition unit that acquires an indicator; and a braking control unit that starts the implementation of automatic braking processing if a determination is made, on the basis of the indicator, that an automatic braking condition has been established. In the automatic braking process, the braking control unit restricts the supply of brake fluid to wheel cylinders corresponding to the rear wheels, and supplies brake fluid to wheel cylinders corresponding to the front wheels to increase the pressure of the wheel cylinders, thereby increasing the braking power for the front wheels and also giving the rear wheels braking power corresponding to the driving amount of a motor for parking.
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Patent Agency Ranking
公开(公告)号：US10562399B2
公开(公告)日：2020-02-18
申请号：US15998744
申请日：2017-02-15
Applicant: ADVICS CO., LTD.
Inventor： Yuki Ota
IPC: B60L15/20 , H02P29/64 , H02P29/68 , H02P27/08 , H02P23/00 , B60T8/00 , B60T8/175 , B60T8/40 , B60T8/17 , B60T7/12
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.
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公开(公告)号：US10549735B2
公开(公告)日：2020-02-04
申请号：US15759721
申请日：2016-09-29
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masaki Ninoyu , Takahiro Okano
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.
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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
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.
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公开(公告)号：US10525955B2
公开(公告)日：2020-01-07
申请号：US15567483
申请日：2016-05-27
Applicant: ADVICS CO., LTD.
Inventor： Yoji Inoue , Nan Li
Abstract: A check valve of this negative pressure-type booster device is provided with: a cylindrical section that is integrally formed with a shell disposed on one side, communicates with a connection pipe, and is formed in a cylindrical shape protruding toward the inside of a housing; and a valve body section that is disposed inside the cylindrical section, and is axially fitted, within the cylindrical section, to the cylindrical section such that air is permitted to flow from a negative pressure chamber to the connection pipe while the air is prohibited from flowing from the connection pipe to the negative pressure chamber.
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公开(公告)号：US20200001840A1
公开(公告)日：2020-01-02
申请号：US16492217
申请日：2018-03-20
Applicant: ADVICS CO., LTD.
Inventor： Masanao SAWADA , Takuma SASAKI
Abstract: This control device which serves as a brake control device is provided with: a valve control unit for controlling a differential pressure regulation valve and a holding valve; and a motor control unit for controlling an electric motor serving as a power source of a pump. When a predetermined condition is satisfied during an automatic braking process to decelerate a vehicle, the valve control unit implements a valve opening change control routine wherein the holding valve is set to a lower opening degree than that before the predetermined condition.
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