公开(公告)号：US06513416B2

公开(公告)日：2003-02-04

申请号：US09828236

申请日：2001-04-09

申请人： Hiroyuki Oka ,  Michio Kobayashi ,  Hidefumi Inoue ,  Yoshiyasu Takasaki ,  Isao Kobayashi ,  Masahiro Shimada ,  Mamoru Sawada ,  Yuzo Imoto

发明人： Hiroyuki Oka ,  Michio Kobayashi ,  Hidefumi Inoue ,  Yoshiyasu Takasaki ,  Isao Kobayashi ,  Masahiro Shimada ,  Mamoru Sawada ,  Yuzo Imoto

IPC分类号： F15B910

CPC分类号： B60T13/565 ,  B60T13/573

摘要： A hydraulic-pressure counter-force mechanism 37 which produces a counter force when a brake booster is operated is made up of an input-side member 38 slidable disposed within a valve body 3, a second constant-pressure chamber 39 formed on the rear side of the input-side member and into which a pressure is introduced from a constant pressure chamber A, and a second constant-pressure chamber 39 formed on the front side of the input-side member and into which a pressure is introduced from a variable pressure chamber B. The counter force from the hydraulic-pressure counter-force mechanism 37 is reduced by an orifice passage 43 as counter-force reducing means in rapid operation for brake.

摘要翻译： 在制动助力器运转时产生反作用力的液压反力机构37由可滑动地设置在阀体3内的输入侧构件38，形成在后侧的第二恒压室39 的输入侧构件，并且从恒压室A引入压力，并且形成在输入侧构件的前侧上并且从可变压力引入压力的第二恒压室39 来自液压反作用力机构37的反作用力通过作为制动器快速操作的反作用力减小装置的节流孔43减小。

公开(公告)号：US06183049B2

公开(公告)日：2001-02-06

申请号：US09226113

申请日：1999-01-07

申请人： Hiroyuki Oka ,  Hidefumi Inoue ,  Yoshiyasu Takasaki ,  Masahiro Shimada ,  Mamoru Sawada ,  Yuzo Imoto

发明人： Hiroyuki Oka ,  Hidefumi Inoue ,  Yoshiyasu Takasaki ,  Masahiro Shimada ,  Mamoru Sawada ,  Yuzo Imoto

IPC分类号： B60T844

CPC分类号： B60T8/442 ,  B60T8/3275 ,  B60T8/328 ,  B60T8/441 ,  B60T8/4872 ,  B60T13/168 ,  B60T13/686

摘要： In a brake boosting system the present invention, as it is decided that brake assist is necessary, a pump 53 is driven, and a solenoid valve 72 is switched to its communication position, and a solenoid shut-off valve 75 is opened. Then, the pump 53 sucks brake fluid from a reservoir 9 through the solenoid valve 72 and sends out the brake fluid to the pressure intensifying chamber 21 through the solenoid shut-off valve 75. At this point, an output shaft 11 has already advanced and a radial hole 38 is positioned ahead of a seventh cup sealing member 31 so that the pressure intensifying chamber 21 and the reaction chamber 33 are shut off from the reservoir 9 so as to be in the sealed state. Therefore, pump discharge pressure is supplied to the pressure intensifying chamber 21 and the reaction chamber 33 so that the pressure in these chambers is intensified. Since the intensified pressure acts on the primary piston 12, the master cylinder pressure is intensified to a value greater than that of normal braking. As mentioned above, by intensifying the master cylinder pressure when necessary, large braking force can be obtained with a simple structure.

摘要翻译： 在本发明的制动助力系统中，由于需要制动辅助，所以驱动泵53，电磁阀72切换到其连通位置，螺线管截止阀75打开。 然后，泵53通过电磁阀72从储存器9吸入制动流体，并通过螺线管截止阀75将制动流体送出到增压室21.此时，输出轴11已经前进， 径向孔38位于第七杯密封构件31的前方，使得增压室21和反应室33从储存器9切断以便处于密封状态。 因此，将泵排出压力供给到增压室21和反应室33，使得这些室中的压力增强。 由于增压作用在主活塞12上，所以主缸压力增大到比正常制动大的值。 如上所述，通过在必要时增大主缸压力，能够以简单的结构获得大的制动力。

公开(公告)号：US6082241A

公开(公告)日：2000-07-04

申请号：US233581

申请日：1999-01-19

申请人： Isao Kobayashi ,  Mamoru Sawada ,  Yuzo Imoto

发明人： Isao Kobayashi ,  Mamoru Sawada ,  Yuzo Imoto

IPC分类号： B60T13/56 ,  B60T13/68 ,  B60T13/72 ,  F15B9/09 ,  F15B9/10

CPC分类号： B60T13/72

摘要： An automatic brake booster includes a solenoid which drives a plunger, forming part of a valve mechanism, forward to switch a flow path in the valve mechanism, separately from an input shaft. A piston is mounted on the plunger, and the atmospheric pressure is introduced into an atmospheric pressure chamber disposed forwardly of the piston while a pressure which prevails in constant pressure chambers A, C is introduced into a negative pressure chamber disposed rearwardly of the piston, thus urging the piston rearward. Preferably, the piston has a pressure responsive area which is substantially equal to the pressure responsive area of an atmosphere valve seat formed on a plunger. This arrangement allows a variation in the output from the brake booster to be minimized or reduced substantially to zero if there is a variation in the magnitude of a negative pressure which is introduced into the constant pressure chambers A, C.

摘要翻译： 自动制动助力器包括驱动柱塞的螺线管，形成阀机构的一部分，以与输入轴分开地切换阀机构中的流路。 活塞安装在柱塞上，大气压力被引入到设置在活塞前方的大气压力室中，而在恒压室A，C中占优势的压力被引入设置在活塞后面的负压室中，因此 向后推动活塞。 优选地，活塞具有基本上等于形成在柱塞上的大气阀座的压力响应面积的压力响应区域。 如果引入恒压室A，C中的负压的大小有变化，则这种布置允许来自制动助力器的输出的变化被最小化或基本上减小到零。

公开(公告)号：US5878365A

公开(公告)日：1999-03-02

申请号：US657188

申请日：1996-06-03

申请人： Nobuyoshi Onogi ,  Yuzo Imoto ,  Masahiko Kamiya ,  Masuhiro Kondo

发明人： Nobuyoshi Onogi ,  Yuzo Imoto ,  Masahiko Kamiya ,  Masuhiro Kondo

IPC分类号： B60T8/58 ,  B60T8/171 ,  B60T8/172 ,  B60T8/1755 ,  B60T17/00 ,  B60T8/00

CPC分类号： B60T8/172 ,  B60T8/171

摘要： Vibration observed in a tire wheel portion exhibits a resonant vibration phenomenon in which vibration fluctuates between a wheel and a surface of a tire. This phenomenon shows different characteristics depending upon how the surface of the tire is in contact with a road surface. Here, a detector derives a parameter corresponding to a gradient of a coefficient of friction based on these characteristics and detects a brake condition. Also, a controller executes ABS control based on such parameter.

摘要翻译： 在轮胎车轮部分观察到的振动表现出振动在车轮和轮胎表面之间波动的共振振动现象。 这种现象根据轮胎的表面如何与路面接触而显示不同的特性。 这里，检测器基于这些特性导出与摩擦系数的梯度对应的参数，并检测制动条件。 此外，控制器基于这样的参数执行ABS控制。

公开(公告)号：US4796957A

公开(公告)日：1989-01-10

申请号：US799166

申请日：1985-11-18

申请人： Hideo Wakata ,  Yuzo Imoto ,  Toshihiro Takei ,  Yoshiyuki Hattori

发明人： Hideo Wakata ,  Yuzo Imoto ,  Toshihiro Takei ,  Yoshiyuki Hattori

IPC分类号： B60T8/175 ,  B60T8/48 ,  B60T13/00

CPC分类号： B60T8/4836 ,  B60T8/175 ,  B60T8/48 ,  B60T8/4827 ,  B60T2270/203

摘要： When excessive acceleration slip of a driving wheel is detected by wheel speed sensors attached to driving and non-driving wheels, an electronic control unit provides first and second control signals to a change-over valve and a control valve, respectively. The change-over valve operates in accordance with the first control signal to supply hydraulic pressure from a hydraulic pump to control a cut-off valve to thereby cut off communication between a master cylinder and a wheel cylinder. At the same time, hydraulic pressure from the hydraulic pump is fed to the wheel cylinder through the change-over valve and the control valve to brake the driving wheel. The control valve operates in accordance with the second control signal to increase or decrease the pressure in the wheel cylinder thereby adjusting the braking force for the driving wheel.

摘要翻译： 当通过连接到驱动轮和非驱动轮的车轮速度传感器检测到驱动轮的过度加速滑动时，电子控制单元分别向转换阀和控制阀提供第一和第二控制信号。 转换阀根据第一控制信号操作以从液压泵提供液压来控制截止阀，从而切断主缸和轮缸之间的连通。 同时，来自液压泵的液压通过转换阀和控制阀被供给到轮缸，以制动驱动轮。 控制阀根据第二控制信号进行操作，以增加或减小轮缸中的压力，从而调节驱动轮的制动力。

公开(公告)号：US20050059524A1

公开(公告)日：2005-03-17

申请号：US10928734

申请日：2004-08-30

申请人： Masashi Hori ,  Masamichi Watanabe ,  Akihiko Takenaka ,  Takahisa Yokoyama ,  Takayuki Takeshita ,  Yuzo Imoto

发明人： Masashi Hori ,  Masamichi Watanabe ,  Akihiko Takenaka ,  Takahisa Yokoyama ,  Takayuki Takeshita ,  Yuzo Imoto

IPC分类号： F16H1/32 ,  F16H55/08 ,  F16H57/08

CPC分类号： F16H1/32 ,  F16H55/08

摘要： An internal planetary gear mechanism reduces a load applied to tooth surfaces of an external gear and an internal gear, a sliding portion such as a bearing and the like. By setting the amount of eccentricity α of an eccentric part to be larger than a theoretical value, a distance between the center of the external gear and the center of the internal gear is increased to allow the reduction of a loss in the bearing and on the tooth surfaces of the gears, and a mesh zone between the internal gear and the external gear can be reduced to decrease a part at a large pressure angle, thereby reducing a loss generated by a large pressure angle. As a result of reduction in the mesh zone between the external gear and the internal gear, rolling contact of the gears is maintained.

摘要翻译： 内部行星齿轮机构减小了施加到外齿轮和内齿轮，诸如轴承等滑动部分的齿面的负载。 通过将偏心部的偏心量α设定为大于理论值，外齿轮的中心与内齿轮的中心之间的距离增大，能够减小轴承的损耗， 齿轮的齿面以及内齿轮与外齿轮之间的网格区域可以减小，以减小大压力角的部分，从而减少由大压力角产生的损失。 由于外齿轮和内齿轮之间的网格区域的减小，齿轮的滚动接触得以保持。

公开(公告)号：US06629445B2

公开(公告)日：2003-10-07

申请号：US09898036

申请日：2001-07-05

申请人： Tomoharu Yamanaka ,  Yuzo Imoto ,  Takehiro Sengoku ,  Kazuo Masaki ,  Katsushi Mizushima

发明人： Tomoharu Yamanaka ,  Yuzo Imoto ,  Takehiro Sengoku ,  Kazuo Masaki ,  Katsushi Mizushima

IPC分类号： G01L2500

CPC分类号： B60R21/01516 ,  G01G19/4142

摘要： A method of calibrating sensitivities of a plurality of pressure sensing cells are disposed at a passenger seat to detect presence of a vehicle passenger. The method is comprised of the following steps: pressing a presser against the passenger seat; detecting output signal levels of the sensing cells; and adjusting sensitivity of the pressure sensing cells according to the output signal levels while the presser is pressed against the seat.

摘要翻译： 校准多个压力感测单元的灵敏度的方法设置在乘客座上以检测车辆乘客的存在。 该方法包括以下步骤：将压脚按压在乘客座上; 检测感测单元的输出信号电平; 并且当按压压靠在座椅上时，根据输出信号电平来调节压力感测单元的灵敏度。

公开(公告)号：US6116705A

公开(公告)日：2000-09-12

申请号：US107512

申请日：1998-06-30

申请人： Shinya Takemoto ,  Yuzo Imoto

发明人： Shinya Takemoto ,  Yuzo Imoto

IPC分类号： B60T8/42 ,  B60T8/66

CPC分类号： B60T8/42

摘要： An anti-skid control system has a determining device which determines whether no pressure increasing output is scheduled to be generated for any of pressure increasing valves provided for plural wheels for at least a predetermined time period. When no pressure increasing output is scheduled to be generated for any of the pressure increasing valves for at least the predetermined time period, the pressure increasing valves are controlled so that a pressure increasing operation is carried out for at least one wheel cylinder to allow brake fluid to flow from a master cylinder to the wheel cylinder.

摘要翻译： 防滑控制系统具有确定装置，其确定在至少预定时间段内为多个车轮设置的任何增压阀是否计划产生增压输出。 当任何压力增加阀至少在预定时间段内不计生产压力增加输出时，控制增压阀，使得对至少一个轮缸进行增压操作以允许制动液 从主缸流到轮缸。

公开(公告)号：US4735185A

公开(公告)日：1988-04-05

申请号：US873597

申请日：1986-06-11

申请人： Yuzo Imoto ,  Hideo Wakata ,  Kiyonori Sekiguchi

发明人： Yuzo Imoto ,  Hideo Wakata ,  Kiyonori Sekiguchi

IPC分类号： F02B3/00 ,  F02B3/06 ,  F02D1/02 ,  F02D41/00 ,  F02D41/40 ,  F02M49/02 ,  F02M51/04 ,  F02B15/00

CPC分类号： F02B3/00 ,  F02M49/02 ,  F02M51/04 ,  F02B3/06

摘要： A fuel injection control apparatus includes a booster apparatus, in which a cylinder chamber is divided into first and second fluid chambers by a piston. The operative area of the piston facing the first fluid chamber is sufficiently greater than that facing the second fluid chamber. Pressurized fuel is supplied to the first fluid chamber through a first check valve. The fluid is delivered from a second fluid chamber to a fuel injection valve via a second check valve. A fluid passage is formed between the first and second fluid chambers. A third check valve is set in the fluid passage, whereby the fuel is allowed to flow only from the first fluid chamber toward the second fluid chamber. The booster piston is located by means of a first piezoelectric device which includes a plurality of piezoelectric elements stacked in layers. When high voltage is applied to the first piezoelectric device to extend it, the piston is moved toward the first fluid chamber. High-voltage power from a second piezoelectric device, which faces the inside of an engine cylinder, is supplied to the first piezoelectric device via a backflow-preventing element. The first piezoelectric device is controlled for discharge in response to the injecting timing.

摘要翻译： 燃料喷射控制装置包括升压装置，其中气缸室通过活塞分成第一和第二流体室。 面向第一流体室的活塞的操作面积足够大于面向第二流体室的操作区域。 加压燃料通过第一止回阀供应到第一流体室。 流体通过第二止回阀从第二流体室输送到燃料喷射阀。 在第一和第二流体室之间形成流体通道。 第三止回阀设置在流体通道中，从而允许燃料仅从第一流体室流向第二流体室。 增压活塞通过第一压电装置定位，该第一压电装置包括层叠的多个压电元件。 当向第一压电装置施加高电压以使其延伸时，活塞向第一流体室移动。 面向发动机气缸内部的来自第二压电装置的高压电力通过防回流元件被供给到第一压电装置。 第一压电装置被控制为响应于喷射正时的放电。

公开(公告)号：US4705323A

公开(公告)日：1987-11-10

申请号：US873385

申请日：1986-06-12

申请人： Yuzo Imoto ,  Toshihiro Takei ,  Yoshiyuki Hattori ,  Haruhiko Uno ,  Mitsuo Inagaki ,  Kenji Takeda

发明人： Yuzo Imoto ,  Toshihiro Takei ,  Yoshiyuki Hattori ,  Haruhiko Uno ,  Mitsuo Inagaki ,  Kenji Takeda

IPC分类号： B60T8/34 ,  B60T8/36 ,  B60T8/44 ,  F16D65/14 ,  F16D65/18 ,  F16D55/08 ,  B60T8/02

CPC分类号： F16D65/18 ,  B60T8/348 ,  B60T8/369 ,  B60T8/447 ,  F16D2121/02 ,  F16D2121/28 ,  F16D2123/00

摘要： Wheel cylinders supplied with oil pressure from a master cylinder are respectively provided in brake mechanism provided in wheels of a vehicle. The wheel cylinder has a brake piston provided to form a first fluid chamber to supply oil pressure from the master cylinder, and a brake piston driven by the oil pressure of the first fluid chamber. The wheel cylinder has a piston mechanism formed by laminating thin plate shaped piezoelectric elements, and the piston mechanism is controlled to be expanded or contracted by controlling the voltage applied to the piezoelectric elements to vary the volume of the first fluid chamber. Cut-off valves are provided in passages for supplying the oil pressure from the master cylinder to the wheel cylinders, a check valve for allowing only the work oil to flow from the master cylinder to the wheel cylinder in parallel with the cut-off valve to control to expand the piston in the state the oil pressure is generated from the master cylinder and the cut-off valve is closed to control to further strengthen the oil pressure in the first fluid chamber.

摘要翻译： 提供有来自主缸的油压的轮缸分别设置在设置在车辆的车轮中的制动机构中。 轮缸具有制动活塞，该制动活塞设置成形成第一流体室，以从主缸提供油压，以及由第一流体室的油压驱动的制动活塞。 轮缸具有通过层叠薄板状压电元件而形成的活塞机构，并且通过控制施加到压电元件的电压来改变第一流体室的体积来控制活塞机构的膨胀或收缩。 截止阀设置在用于将主缸的油压供给到轮缸的通道中，止回阀仅允许工作油从截止阀平行地从主缸流到轮缸， 控制在从主缸产生油压的状态下膨胀活塞，并且截止阀被关闭以控制以进一步增强第一流体室中的油压。