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公开(公告)号：US10520051B2
公开(公告)日：2019-12-31
申请号：US16064045
申请日：2016-12-21
Applicant: ADVICS CO., LTD.
Inventor： Yoshiyuki Yasui
IPC: B60T13/74 , F16D63/00 , B60T7/12 , B60T8/17 , F16D65/18 , B60T8/1761 , F16D65/22 , B60T1/00 , B60T7/04 , F16D55/226 , F16D121/24 , F16D127/06 , F16D125/40
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.
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公开(公告)号：US20190329759A1
公开(公告)日：2019-10-31
申请号：US16310107
申请日：2017-06-23
Applicant: ADVICS CO., LTD.
Inventor： Yusuke TAKEYA
IPC: B60W30/045 , B60T7/12 , B60T8/1755 , B60W10/184 , B60W10/20 , B62D6/00
Abstract: A travel control device includes a first arithmetic unit configured to calculate a target moment, that is, a turning moment necessary for causing a vehicle to turn and move along a target path from a current position to a target position; a second arithmetic unit configured to calculate a limit moment, that is, a maximum turning moment which can be generated by a steering mechanism of the vehicle by the time the vehicle reaches the target position from the current position, while taking into account at least response delays of the vehicle; and an output unit configured to output brake commands for causing brake devices, which are respectively disposed so as to correspond to multiple wheels of the vehicle, to independently generate a braking force when the target moment is greater than the limit moment such that an insufficient moment corresponding to the difference between the target moment and the limit moment is generated.
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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：US20190299786A1
公开(公告)日：2019-10-03
申请号：US16465730
申请日：2017-12-05
Applicant: ADVICS CO., LTD.
Inventor： Yusuke Nakagawa , Takayuki Yamamoto
IPC: B60L3/00 , B60T8/171 , B60T8/1761 , B60T8/96
Abstract: A vehicle braking system is provided with: a driving motor that can apply a regenerative braking force to a wheel; a friction braking device that is operated so as to apply a friction braking force to the wheel; and a braking control device. The braking control device controls the friction braking device on the basis of the detected value of a wheel speed when the detected value of the wheel speed of the wheel based on an output signal from each of wheel speed sensors SE5-SE8 can be acquired, and, when the detected value of the wheel speed cannot be acquired, acquires the estimated value of the wheel speed of the wheel on the basis of the rotational speed of the driving motor and controls the friction braking device on the basis of the estimated value of the wheel speed.
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公开(公告)号：US10384629B2
公开(公告)日：2019-08-20
申请号：US15529557
申请日：2015-11-27
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yosuke Ohmori , Wataru Ike
IPC: B64C39/02 , B60R21/0134 , B60W50/12 , B60T7/12 , B60W30/09 , G08G1/16 , B60W50/10 , B60T7/22 , B60W10/06 , B60W10/08 , B60W10/184 , B60W30/18 , B60W50/14
Abstract: A collision avoidance device includes a collision avoidance executor, a determiner, and a collision avoidance controller, for example. The collision avoidance executor can execute a collision avoidance function for a vehicle to avoid collision with an object to be avoided. The determiner determines, based on an operation of an accelerator pedal by a driver, whether the driver has an intention of acceleration. The collision avoidance controller inhibits execution of the collision avoidance function when the driver is determined to have the intention of acceleration. The determiner further determines, based on the operation of the accelerator pedal, whether the driver has an intention of cancelation of the collision avoidance function. The collision avoidance controller ends the execution of the collision avoidance function when the driver is determined to have the intention of cancelation during the execution of the collision avoidance function.
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Patent Agency Ranking
公开(公告)号：US10378600B2
公开(公告)日：2019-08-13
申请号：US15554050
申请日：2016-03-31
Applicant: ADVICS CO., LTD.
Inventor： Shun Tsukamoto , Koichi Kokubo
IPC: B60T13/66 , F16D65/14 , B60T1/06 , B60T8/00 , B60T13/74 , B60T8/17 , B60T1/00 , F16D63/00 , F16D65/18 , F16D127/06 , F16D125/40 , F16D125/48
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.
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公开(公告)号：US20190219185A1
公开(公告)日：2019-07-18
申请号：US16318570
申请日：2017-07-25
Applicant: ADVICS CO., LTD.
Inventor： Kenta ISHIKAWA , Masaki ARAKAWA , Kimiyasu SUZUKI
CPC classification number: F16K17/0433 , B60T8/173 , B60T8/176 , B60T13/145 , B60T13/686 , F16K15/02 , F16K47/02
Abstract: A vacuum booster check valve comprises: a main body attached to a vacuum inlet; a first passage, an accommodation section, and a second passage; a valve seat formed in the first passage; a valve body accommodated within the accommodation section; and springs that bias the valve body toward the valve seat. The check valve also comprises vibration absorption sections whereby, when the valve body is seated on the valve seat, one part of the valve body absorbs more vibrations imparted to the valve body compared to other parts of the valve body.
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公开(公告)号：US20190202422A1
公开(公告)日：2019-07-04
申请号：US16325344
申请日：2017-08-30
Applicant: ADVICS CO., LTD.
Inventor： Hikaru KAWAMURA , Shun TSUKAMOTO
IPC: B60T8/1761 , B60T8/40 , B60T8/172 , B60T13/74
CPC classification number: B60T8/1761 , B60T8/17 , B60T8/172 , B60T8/40 , B60T13/74 , B60T13/745 , B60T2201/03 , H02M7/48
Abstract: The braking control device generates braking force by operating an electric motor to press a friction member against a wheel-fixed rotary member. The braking control device includes: a wheel speed sensor detecting wheel speed; a rotation angle sensor detecting a motor rotation angle; a drive circuit driving the motor; and a controller controlling the drive circuit. The controller sets a current limit circle within d-axis/q-axis current characteristics of the motor based on specifications of the drive circuit, calculates a voltage limit circle within the d-axis/q-axis current characteristics based on the rotation angle, executes slip suppression control for reducing the degree of wheel slip based on the wheel speed, calculates d-axis and q-axis target current values based on intersection points of the current limit circle and the voltage limit circle when execution of slip suppression control begins, and controls the drive circuit based on the d-axis and q-axis target current values.
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公开(公告)号：US20190193695A1
公开(公告)日：2019-06-27
申请号：US16303437
申请日：2017-05-22
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masaki NINOYU , Yusuke KAMIYA
IPC: B60T8/1761 , B60T13/14 , B60T8/88 , B60T17/22
CPC classification number: B60T8/1761 , B60T8/17 , B60T8/885 , B60T13/14 , B60T13/142 , B60T17/222 , B60T2210/12 , B60T2270/14
Abstract: A vehicle braking device of a by-wire type includes an actuator configured to flow out a fluid in a subject wheel cylinder among the plurality of wheel cylinders to flow towards the master chamber upon pressure decreasing control for the subject wheel cylinder under an ABS control execution and a control portion executing a first control controlling the driving portion such that an increasing amount of the master pressure under a pressure increasing control becomes great or a decreasing amount thereof under a pressure decreasing control becomes small and/or executes a second control which controls the driving portion such that the increasing amount of the master pressure under the pressure increasing control becomes small or the decreasing amount thereof under the pressure decreasing control of the master pressure becomes great.
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公开(公告)号：US20190193572A1
公开(公告)日：2019-06-27
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
CPC classification number: B60L7/26 , B60L7/18 , B60L7/24 , B60T8/17 , B60T13/586 , B60T2270/604
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.
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