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公开(公告)号：US20220314812A1
公开(公告)日：2022-10-06
申请号：US17630794
申请日：2020-07-28
Applicant: ADVICS CO., LTD.
Inventor： Takayuki YAMAMOTO , Kazutoshi YOGO
Abstract: A braking control device is applied to, for example, a vehicle in which a regenerative braking force is generated on a front wheel by a regenerative generator provided on the front wheel. The braking control device includes an actuator configured to individually generate a front wheel friction braking force on the front wheel and a rear wheel friction braking force Fmr on a rear wheel of the vehicle; and a braking controller configured to control the actuator. In the braking control device, the braking controller is configured to regulate the front and rear wheel friction braking forces based on a normative regenerative force corresponding to a rotation speed equivalent value equivalent to a rotation speed of the regenerative generator.
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公开(公告)号：US20210261106A1
公开(公告)日：2021-08-26
申请号：US17256884
申请日：2019-08-29
Applicant: ADVICS CO., LTD.
Inventor： Takayuki YAMAMOTO
IPC: B60T8/1755 , B60T8/1761 , B60T8/44 , B60T8/48
Abstract: A brake control device includes an electric pump, a pressure adjustment valve that adjusts a hydraulic pressure of a brake fluid discharged by the electric pump to an adjustment hydraulic pressure and supplies the brake fluid in a rear wheel cylinder, and a master unit provided with a servo chamber into which brake fluid at the adjustment hydraulic pressure is supplied and in which the adjustment hydraulic pressure is converted into a forward force of a master piston, and a master chamber fluidically separated from the servo chamber by the master piston and connected to the front wheel cylinder and in which a rearward force converted from the hydraulic pressure in the front wheel cylinder and is applied to the master piston. Also included is an input unit provided with an input chamber and a simulator, and a controller configured to control the electric pump and the pressure adjustment valve.
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公开(公告)号：US20210229648A1
公开(公告)日：2021-07-29
申请号：US16967528
申请日：2019-02-05
Applicant: ADVICS CO., LTD.
Inventor： Takayuki YAMAMOTO , Hiroyuki KODAMA , Hiroyuki ANDO
Abstract: A braking control device includes a master unit including a master chamber connected to a front wheel cylinder and a servo chamber that applies forward force opposing a reverse force applied to a master piston by the master chamber to the master piston, a pressure adjustment unit that adjusts brake fluid discharged by a pump to a first liquid pressure by a first solenoid valve and introduces the first liquid pressure to a rear wheel cylinder, and adjusts the first liquid pressure to decrease to a second liquid pressure by a second solenoid valve and introduces the second liquid pressure to the servo chamber; and a regenerative coordination unit having an input piston operable in conjunction with a braking operation member and an input cylinder fixed to the master cylinder, and in which a gap between the master piston and the input piston is controlled by the second liquid pressure.
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公开(公告)号：US20190299958A1
公开(公告)日：2019-10-03
申请号：US16316878
申请日：2017-07-14
Applicant: ADVICS CO., LTD.
Inventor： Yasuhito ISHIDA , Takayuki YAMAMOTO
Abstract: A braking control device for imparting brake fluid pressure on wheel cylinders in response to operation of a braking operation member to produce braking force includes: first and second fluid pressure units for imparting brake fluid pressure by first and second power sources respectively; and a determining device for determining whether or not operation of the first fluid pressure unit is appropriate. When the determining device determines that operation is appropriate, the first fluid pressure unit imparts brake fluid pressure based on a suitability characteristic, which is the relationship between the brake fluid pressure and the braking operation member operation amount, set in advance. The second fluid pressure unit has proximity characteristics, generally matching the suitability characteristic, and notification characteristics, different from the suitability characteristic. When operation of the first fluid pressure unit is not appropriate, the second fluid pressure unit imparts brake fluid pressure based on the proximity or notification characteristics.
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公开(公告)号：US20250058746A1
公开(公告)日：2025-02-20
申请号：US18721232
申请日：2022-12-22
Applicant: ADVICS CO., LTD.
Inventor： Daichi NAGAE , Takayuki YAMAMOTO , Yoshio MASUDA
Abstract: This braking control device comprises a first unit for outputting a supply pressure in accordance with operation displacement of a braking operation member, a second unit between the first unit and a wheel cylinder to increase the supply pressure and output a wheel pressure to the wheel cylinder, a displacement sensor for detecting the operation displacement, and a supply pressure sensor for detecting the supply pressure. The first unit selects either a first mode in which the operation displacement and the supply pressure are independent or a second mode in which the operation displacement and the supply pressure are linked. When the displacement sensor is normal, the first unit selects the first mode and increases the supply pressure based on the operation displacement. When the displacement sensor is not normal, the first unit selects the second mode, and the second unit increases the wheel pressure based on the supply pressure.
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Patent Agency Ranking
公开(公告)号：US20240166186A1
公开(公告)日：2024-05-23
申请号：US18551666
申请日：2022-03-22
Applicant: ADVICS CO., LTD.
Inventor： Masaki MARUYAMA , Takayuki YAMAMOTO
IPC: B60T13/68 , B60T8/1766 , B60T8/30
CPC classification number: B60T13/686 , B60T8/1766 , B60T8/306 , B60T2270/604
Abstract: An actuator supplies a front wheel brake fluid pressure and a rear wheel brake fluid pressure equal to generate front and rear wheel frictional braking forces. A controller calculates a braking force required as a whole of a vehicle, and calculates front and rear wheel required braking forces so that a sum of the front and rear wheel required braking force matches a target vehicle body braking force and the ratio of the rear wheel required braking force to the front wheel required braking force is a constant value. A rear wheel restricted regenerative braking force is calculated by multiplying the maximum front wheel regenerative braking force by a constant value, and the smaller one of maximum rear wheel regenerative braking force and the rear wheel restricted regenerative braking force is determined as the rear wheel reference regenerative braking force.
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公开(公告)号：US20210213835A1
公开(公告)日：2021-07-15
申请号：US16967432
申请日：2019-02-05
Applicant: ADVICS CO., LTD.
Inventor： Takayuki YAMAMOTO , Hiroyuki KODAMA , Hiroyuki ANDO
Abstract: A vehicle includes a regenerative generator on a front wheel. A braking control device includes an actuator that applies a front wheel torque and a rear wheel torque, and a controller that individually adjusts the front wheel torque and the rear wheel torque. The controller is configured to determine the front wheel torque and the rear wheel torque to zero when a regenerative braking force Fg generated by the regenerative generator has not reached a maximum regenerative force Fx which is a generatable maximum value. On the other hand, the controller is configured to increase the rear wheel torque from zero before increasing the front wheel torque from zero when the regenerative braking force Fg reaches the maximum regenerative force Fx.
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公开(公告)号：US20210129815A1
公开(公告)日：2021-05-06
申请号：US17041486
申请日：2019-03-28
Applicant: ADVICS CO., LTD.
Inventor： Tomotaka ASANO , Takayuki YAMAMOTO , Yasuhito ISHIDA
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.
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公开(公告)号：US20210067370A1
公开(公告)日：2021-03-04
申请号：US16644198
申请日：2018-09-28
Applicant: ADVICS CO., LTD.
Inventor： Ryosuke ENDO , Takayuki YAMAMOTO , Tomotaka ASANO , Tatsushi KOBAYASHI , Jun NOMURA
Abstract: The present invention comprises: a first control device and a second control device that control the operation of a vehicle; a start signal output unit that outputs a start signal to the first control device and the second control device if the vehicle is in a prescribed state; an input detection unit that detects the input of the start signal to the first control device and the second control device in the state in which the start signal has been output to the first control device and the second control device by the start signal output unit; and pause signal output units that output a pause signal to the first control device and the second control device if the state in which the start signal input has been detected by the input detection unit has continued for at least a prescribed amount of time.
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公开(公告)号：US20200290576A1
公开(公告)日：2020-09-17
申请号：US16759381
申请日：2018-11-06
Applicant: ADVICS CO., LTD.
Inventor： Tatsushi KOBAYASHI , Tomotaka ASANO , Yasuhito ISHIDA , Ryosuke ENDO , Takayuki YAMAMOTO
Abstract: A vehicle brake device includes a stroke simulator, a stroke sensor, and a brake start determination unit. The stroke simulator includes a cylinder, a piston, an orifice, and a pressure sensor. The cylinder defines a liquid pressure chamber to which a brake liquid is supplied via a fluid path. The piston slides in the cylinder by the brake liquid supplied to the liquid pressure chamber. The orifice is formed in the fluid path. The pressure sensor detects a reaction pressure. The stroke sensor is configured to detect the stroke. The brake start determination unit determines an operation of the brake operation member has been started in a case where the reaction pressure detected by the pressure sensor becomes equal to or greater than a first threshold value and the stroke detected by the stroke sensor becomes equal to or greater than a second threshold value.
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