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公开(公告)号：US20200031323A1
公开(公告)日：2020-01-30
申请号：US16499018
申请日：2018-03-29
Applicant: NISSIN KOGYO CO., LTD. , VEONEER NISSIN BRAKE SYSTEMS JAPAN CO., LTD. , MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA , NTN CORPORATION
Inventor： Hiromasa SATOH , Toshihiro OBIKA , Yusuke KOGA , Hiromitsu TOYOTA , Haruo KOTERA , Tatsuya YAMASAKI , Yui MASUDA
Abstract: A highly reliable vehicle brake system that includes an electric brake and achieves redundancy at low cost is provided.A vehicle brake system (1) includes electric brakes (16a to 16d) that include at least one unit of motors (80 and 81), and first and second control devices (10 and 11) that include a master controller (30) and a first sub-controller (40) that are connected to one another. The master controller (30) includes a driver control unit (301) that can control drivers (61 and 63), and a braking force calculation unit that calculates braking force of the electric brakes (16a to 16d). The first sub-controller (40) includes a driver control unit that controls a driver (60), and a braking force calculation unit that calculates braking force of the electric brakes (16a to 16d). The master controller (30) and the first sub-controller (40) include a determination unit that compares braking force calculation results of other controllers to determine braking force.
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公开(公告)号：US20200031322A1
公开(公告)日：2020-01-30
申请号：US16499046
申请日：2018-03-29
Applicant: NISSIN KOGYO CO., LTD. , VEONEER NISSIN BRAKE SYSTEMS JAPAN CO., LTD. , MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA , NTN CORPORATION
Inventor： Hiromasa SATOH , Toshihiro OBIKA , Yusuke KOGA , Hiromitsu TOYOTA , Haruo KOTERA , Tatsuya YAMASAKI , Yui MASUDA
Abstract: A highly reliable vehicle brake system that includes an electric brake and achieves redundancy at low cost is provided.A vehicle brake system (1) is provided to a wheel (Wa) of a vehicle (VB), and includes an electric brake (16a) provided with a motor (80), a driver (60) that drives the motor (80), and a first control device (10) provided with a master controller (30) and a first sub-controller (40) connected to each other. The electric brake (16a) is controllable by both the master controller (30) and the first sub-controller (40).
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公开(公告)号：US20200039484A1
公开(公告)日：2020-02-06
申请号：US16499063
申请日：2018-03-29
Applicant: NISSIN KOGYO CO., LTD. , VEONEER NISSIN BRAKE SYSTEMS JAPAN CO., LTD. , MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA , NTN CORPORATION
Inventor： Hiromasa SATOH , Toshihiro OBIKA , Yusuke KOGA , Hiromitsu TOYOTA , Haruo KOTERA , Tatsuya YAMASAKI , Yui MASUDA
Abstract: A highly reliable vehicle brake system including an electric brake is provided.A vehicle brake system (1) includes electric brakes (16a to 16d) provided with motors (80 to 85), drivers (60 to 65) that drive the motors (80 to 85), and a control device that controls the drivers (60 to 65). The electric brake (16a) includes two motors (80 and 81), and the control device includes separate drivers (60 and 61) respectively corresponding to the two motors (80 and 81). The control device includes a first master controller (30) and a first sub-controller (40). The first master controller (30) controls the driver (61) corresponding to the motor (81), and the first sub-controller (40) controls the driver (60) corresponding to the motor 80.
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公开(公告)号：US20170108067A1
公开(公告)日：2017-04-20
申请号：US15394112
申请日：2016-12-29
Applicant: NTN CORPORATION
Inventor： Yui MASUDA , Tatsuya YAMASAKI
CPC classification number: F16D65/18 , B60T1/005 , B60T13/74 , B60T13/741 , B60T17/18 , F16D55/225 , F16D55/226 , F16D63/006 , F16D65/183 , F16D2121/24 , F16D2125/40 , F16D2125/48 , F16D2127/02
Abstract: The electric brake device includes an electric motor, a brake rotor, a friction pad, a conversion mechanism, a braking force command section, a braking force estimation section, a controller, and a power supply device. The controller includes: a power determination section to determine whether an amount of remaining power that can be supplied from a power supply device to the electric motor has become equal to or less than a determined value; and a residual pressure cancellation section to cancel a residual pressure of a braking force by driving the electric motor in a direction opposite to a brake pressing direction such that an estimated value of the braking force obtained by the braking force estimation section becomes equal to or less than a set value, when the power determination section determines that the amount of remaining power has become equal to or less than the determined value.
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公开(公告)号：US20160131212A1
公开(公告)日：2016-05-12
申请号：US14896050
申请日：2014-06-12
Applicant: NTN CORPORATION
Inventor： Tatsuya YAMASAKI , Makoto MURAMATSU , Yui MASUDA
IPC: F16D65/18 , F16H25/22 , F16H25/24 , F16D55/225
CPC classification number: F16D65/18 , F16D55/225 , F16D65/183 , F16D2121/24 , F16D2125/50 , F16H25/2252 , F16H25/2454 , H02K7/06 , H02K7/116
Abstract: The electric linear motion actuator includes an electric motor, a drive shaft configured to be rotated by the electric motor, a rotation-to-linear motion converting mechanism configured to convert the rotational motion of the drive shaft to the axial linear motion of an axially movably supported outer ring member, and an electric locking mechanism incorporated in a reduction gear mechanism in which the rotation of a rotor shaft of the electric motor is reduced in speed and transmitted to the drive shaft. When the electric locking mechanism is energized, the power transmission path shifts to the locked state in which power cannot be transmitted, and when the electric locking mechanism is de-energized thereafter, the power transmission path is kept in the locked state. The electric locking mechanism is built in a motor case of the electric motor so that the electric motor and the electric locking mechanism are unitized.
Abstract translation: 电动直线运动致动器包括电动机，构造成由电动机旋转的驱动轴;旋转到线性运动转换机构，其构造成将驱动轴的旋转运动转换成轴向可运动的轴向直线运动 以及电动锁定机构，其结合在减速齿轮机构中，其中电动机的转子轴的旋转速度降低并传递到驱动轴。 当电动锁定机构通电时，动力传递路径转移到不能传递动力的锁定状态，并且当电动锁定机构在此之后被断电时，动力传递路径保持在锁定状态。 电动锁定机构内置在电动机的电动机壳体中，使得电动机和电动锁定机构被组合。
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Patent Agency Ranking
公开(公告)号：US20160288778A1
公开(公告)日：2016-10-06
申请号：US15182211
申请日：2016-06-14
Applicant: NTN CORPORATION
Inventor： Makoto MURAMATSU , Yuuki SAOYAMA , Tatsuya YAMASAKI , Masaaki EGUCHI , Yui MASUDA
CPC classification number: B60T17/221 , B60T13/741 , B60T13/746 , B60T17/00 , F16D55/225 , F16D55/227 , F16D65/18 , F16D66/00 , F16D2066/001 , F16D2121/24 , F16D2125/40 , F16D2125/48 , F16D2125/50 , F16D2127/06
Abstract: An electric brake device includes an electric motor; a braking force application mechanism configured to apply a braking force on a vehicle wheel; a lock mechanism configured to assume one of a locked condition; a temperature sensor configured to measure an ambient temperature of a vehicle; and a freezing preventive power supply unit configured to initiate supply of an electric power to the electric motor or a drive source of the lock mechanism. The freezing preventive power supply unit interrupts the supply of the electric power to the electric motor or the drive source of the lock mechanism when the temperature detected by the temperature sensor exceeds a second preset temperature T2 that is higher than a first preset temperature T1.
Abstract translation: 电动制动装置包括电动机; 制动力施加机构，其构造成将制动力施加在车轮上; 锁定机构，被配置为承担锁定状态之一; 温度传感器，被配置为测量车辆的环境温度; 以及防冰电源单元，被配置为开始向所述电动机或所述锁定机构的驱动源提供电力。 当由温度传感器检测到的温度超过高于第一预设温度T1的第二预设温度T2时，防冻电源单元中断向电动机或锁定机构的驱动源的电力供应。
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公开(公告)号：US20160201777A1
公开(公告)日：2016-07-14
申请号：US14915977
申请日：2014-08-26
Applicant: NTN CORPORATION
Inventor： Tatsuya YAMASAKI
CPC classification number: F16H25/2252 , F16D55/22 , F16D65/18 , F16D2121/24 , F16D2125/40 , F16D2125/48 , F16D2125/50 , F16H25/2418
Abstract: It is an object of the present invention to improve seal performance in an electric linear motion actuator configured to linearly drive a linear motion member due to the rotation of a rotary shaft. The linear motion member is constituted by a cylindrical member slidably fitted in a housing, and a pressing member coupled to the distal end portion of the cylindrical member so as to close the opening of the distal end of the cylindrical member. The portion of the pressing member coupled to the cylindrical member is located inside of a boot sealing the space between the distal end portion of the housing and the distal end portion of the linear motion member.
Abstract translation: 本发明的一个目的是提高电动直线运动致动器中的密封性能，其构造成由于旋转轴的旋转而线性地驱动直线运动构件。 直线运动构件由可滑动地装配在壳体中的圆柱形构件和联接到圆柱形构件的远端部分的按压构件构成，以便关闭圆柱形构件的远端的开口。 联接到圆柱形构件的按压构件的部分位于罩的内部，该罩用于密封壳体的远端部分和直线运动构件的远端部分之间的空间。
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公开(公告)号：US20200039485A1
公开(公告)日：2020-02-06
申请号：US16499146
申请日：2018-03-29
Applicant: NISSIN KOGYO CO., LTD. , VEONEER NISSIN BRAKE SYSTEMS JAPAN CO., LTD. , MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA , NTN CORPORATION
Inventor： Hiromasa SATOH , Toshihiro OBIKA , Yusuke KOGA , Yasushi AOKI , Hiromitsu TOYOTA , Haruo KOTERA , Tatsuya YAMASAKI , Yui MASUDA
Abstract: A highly reliable vehicle brake system that includes an electric brake and achieves redundancy at low cost is provided.A vehicle brake system (1) includes a first control device (10) and a second control device (11) that respectively include a master controller (30), a first sub-controller (40), and a second sub-controller (41) that are connected to one another. Each of the master controller (30), the first sub-controller (40), and the second sub-controller (41) includes a braking force calculation unit that calculates braking force of electric brakes (16a to 16d), and a determination unit that compares braking force calculation results of the controllers to determine whether itself is normal. The determination unit includes an output block section that blocks, when the determination unit determines that any one of the controllers is not normal, an output of the controller that is determined to be not normal.
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公开(公告)号：US20190339139A1
公开(公告)日：2019-11-07
申请号：US16473884
申请日：2017-12-26
Applicant: NTN CORPORATION
Inventor： Tatsuya YAMASAKI , Yui MASUDA
IPC: G01L1/12 , F16D55/226 , G01L5/28
Abstract: A load sensor used in an electromechanical brake system is provided. The load sensor includes a flange member capable of deflecting when receiving, at a load receiving portion, a load from the axially front side; a support member capable of supporting the flange member from the axially rear side, at a support portion displaced from the load receiving portion in a radial direction orthogonal to the axial direction; a displacement detecting mechanism configured to detect the amount of relative movement between the flange and support members; and a variable detection sensitivity mechanism enabling the relative movement amount with respect to the change of the load applied to the flange member to be larger in a low load range in which the load is equal to or lower than a predetermined load value than in a high load range in which the load is higher than the predetermined load value.
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公开(公告)号：US20190128351A1
公开(公告)日：2019-05-02
申请号：US16309755
申请日：2017-05-24
Applicant: NTN CORPORATION
Inventor： Tatsuya YAMASAKI
IPC: F16D65/18 , F16D55/226 , B60T13/74
CPC classification number: F16D65/18 , B60T13/74 , F16D55/226 , F16D2121/24 , F16D2125/40 , F16H25/20
Abstract: In an electric linear motion actuator, while an axially forward load is not being applied to an object by an outer ring member, a preload is applied to a frictionally coupling surface by an elastic member, and, when the axially forward load is applied to the object by the outer ring member, an axial load applied to the frictionally coupling surface decreases by an amount equal to the axially rearward reaction force which the outer ring member receives from the object. The electric linear motion actuator includes a load sensor for supporting, through planetary rollers and a carrier, the axially rearward reaction force. The load sensor is arranged such that any change in magnitude of an axially forward load applied through a snap ring will not affect the value of the axially rearward reaction force detected by the load sensor.
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