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    • 1. 发明授权
    • Fluid pressure boosting device and brake pressure boosting system employing the device
    • 采用该装置的流体增压装置和制动升压系统
    • US06196641B1
    • 2001-03-06
    • US09181994
    • 1998-10-29
    • Hiroyuki OkaMichio KobayashiMasahiro ShimadaSatoru WatanabeJunichi HirayamaMamoru SawadaYuzo Imoto
    • Hiroyuki OkaMichio KobayashiMasahiro ShimadaSatoru WatanabeJunichi HirayamaMamoru SawadaYuzo Imoto
    • B60T844
    • B60T13/144B60T8/3275B60T8/441B60T8/4845B60T8/4872
    • A fluid pressure boosting device of the present invention performs jumping action at a higher servo ratio until fluid pressure in a power chamber (25) reaches a first predetermined value and a rear end (20e) of a reaction piston (20)comes in contact with a step of an input shaft (18). Since a switching valve is set in a first position I until the fluid pressure in the power chamber (25) reaches a second predetermined pressure, a reaction chamber (41) is connected to the reservoir (33) so as to be at atmospheric pressure. In this state, the normal brake control at a lower servo ratio is performed. As the fluid pressure in the power chamber (25) reaches a second predetermined value, the switching valve is set in a second position II by the fluid pressure so that the pressurized fluid in the power chamber is introduced into the reaction chamber (41). The fluid pressure in the reaction chamber 41 acts on the step between the reaction piston (20) and the input shaft (18) so that the servo ratio becomes higher. Then, the servo control at a higher servo ratio is performed. The fluid pressure boosting device can be provided with the reversed two-stage servo characteristic, so with simple structure, output larger than the normal output can be obtained when input exceeds a predetermined value.
    • 本发明的流体增压装置以更高的伺服比执行跳动,直到动力室25中的流体压力达到第一预定值,并且反作用活塞(20)的后端(20e)与 输入轴(18)的台阶。 由于在动力室25内的流体压力达到第二预定压力之前将切换阀设定在第一位置I,所以将反应室41与储存器33连接成大气压。 在该状态下,执行较低伺服比的正常制动控制。 当功率室25中的流体压力达到第二预定值时,通过流体压力将切换阀设定在第二位置II,使得动力室中的加压流体被引入到反应室41中。 反应室41中的流体压力作用在反应活塞(20)和输入轴(18)之间的台阶上,使得伺服比变高。 然后,执行伺服控制以较高的伺服比。 流体增压装置可以设置反向两级伺服特性,结构简单,当输入超过预定值时,可以获得大于正常输出的输出。
    • 2. 发明授权
    • Hydraulic pressure type booster
    • 液压式助力器
    • US6164070A
    • 2000-12-26
    • US173760
    • 1998-10-16
    • Michio KobayashiMasahiro ShimadaSatoru Watanabe
    • Michio KobayashiMasahiro ShimadaSatoru Watanabe
    • B60T13/12B60T13/14B60T13/00
    • B60T13/145
    • The collar 13 for slidably supporting and guiding a valve body of the control valve 55 of the hydraulic pressure type booster 1 is press-fitted into the small diameter portion 9a of the stepped hole 9 of the power piston 8. The valve seat member 10 of the control valve 55 is also press-fitted into the small diameter portion 9a. Further, the small diameter protrusion 6b of the stepped cylindrical protrusion 6a of the plug 6, which divides the power chamber 25, is also press-fitted into the small diameter portion 4a of the stepped hole 4 of the housing 3. In the cylindrical member 17 in which the second valve seat 17a of the control valve 55 is formed, the stopper 17b to restrict a limit of retraction of the input shaft 18 is integrally formed. Further, the cylindrical fixing member 11 to fix the flange 10a of the valve seat member 10 is fixed to the power piston 8 with C ring 12 in the axial direction.
    • 用于可滑动地支撑和引导液压式助力器1的控制阀55的阀体的轴环13压配合到动力活塞8的阶梯孔9的小直径部分9a中。阀座构件10 控制阀55也压配合到小直径部分9a中。 此外,分隔动力室25的塞子6的阶梯状的圆筒形突出部6a的小直径突起6b也被压配合到壳体3的台阶孔4的小直径部分4a中。在圆柱形构件 如图17所示,其中形成有控制阀55的第二阀座17a,限制输入轴18的回缩极限的止动器17b一体形成。 此外,用于将阀座构件10的凸缘10a固定的圆筒形固定构件11在轴向上固定到具有C形环12的动力活塞8上。
    • 4. 发明授权
    • Brake-pressure producing device
    • 制动压力发生装置
    • US5890363A
    • 1999-04-06
    • US966715
    • 1997-11-10
    • Michio KobayashiMasahiro Shimada
    • Michio KobayashiMasahiro Shimada
    • B60T13/12B60T13/14
    • B60T13/146
    • In a brake-pressure producing device of the present invention, a power piston 10 of a hydraulic booster 2 comprises a stepped piston including a large-diameter portion 10a on which fluid pressure of a power chamber 30 is exerted and a small-diameter portion 10b having the same diameter as the master cylinder piston 53. Both the pistons 10, 53 are interlocked with each other through an aligning rod 62. The pressurized fluid of the power chamber 30 is introduced into an annular chamber 51 formed on the circumference of the small-diameter portion 10b and the fluid pressure of the pressurized fluid is exerted on a stepped portion 10c between the large-diameter portion 10a and the small-diameter portion 10b in the direction opposite to the direction of the fluid pressure of the power chamber 30. When the braking operation is performed, the fluid pressure in the power chamber 30 introduced into wheel cylinders 33, 34 relating to one of the circuits and the master cylinder pressure introduced into wheel cylinders 58, 59 relating to the other circuit balance to be equal to each other, thereby uniformly and properly distributing braking forces to the respective wheel cylinders.
    • 在本发明的制动压力产生装置中,液压助力器2的动力活塞10包括阶梯式活塞,该活塞包括大直径部分10a,动力室30的流体压力被施加在其上,小直径部分10b 具有与主缸活塞53相同的直径。两个活塞10,53通过对准杆62彼此互锁。动力室30的加压流体被引入形成在小缸的圆周上的环形室51中 直径部分10b,并且加压流体的流体压力沿与动力室30的流体压力方向相反的方向施加在大直径部分10a和小直径部分10b之间的台阶部分10c上。 当执行制动操作时,引入到轮缸33,34中的动力室30中的流体压力与所引入的一个回路和主缸压力相关 与另一个电路平衡相关的轮缸58,59彼此相等,从而均匀且适当地将制动力分配到相应的轮缸。
    • 5. 发明授权
    • Braking pressure intensifying master cylinder
    • 制动压力增大主缸
    • US06564553B2
    • 2003-05-20
    • US09842109
    • 2001-04-26
    • Hiroyuki OkaMichio KobayashiMasahiro ShimadaMamoru SawadaKazuya MakiHiroaki Niino
    • Hiroyuki OkaMichio KobayashiMasahiro ShimadaMamoru SawadaKazuya MakiHiroaki Niino
    • B60T1312
    • B60T8/4077B60T8/00B60T8/3275B60T8/4845B60T11/224B60T13/12
    • In a braking pressure intensifying master cylinder, as an input shaft (53) travels forwards in a braking maneuver, a control valve (54) is actuated to develop fluid pressure according to the input in a reaction chamber (38) and a pressurized chamber (35). A stepped spool (45) as a part of the control valve 54 travels such that force produced by the fluid pressure and spring force of a spring (51) are balanced, whereby the stepped spool (45) can function as a travel simulator. By changing the pressure receiving areas of the stepped spool and/or changing the spring force of the spring (51), the travel characteristic of the input shaft (53) as the input side can be freely changed independently from the output side, without influence on a master cylinder pressure as the output side of the braking pressure intensifying a master cylinder (1). In addition, the master cylinder pressure can be intensified when necessary with a simple structure.
    • 在制动压力增加主缸中,当制动操作中输入轴(53)向前行进时,致动控制阀54以根据反应室(38)和加压室(38)中的输入产生流体压力 35)。 作为控制阀54的一部分的阶梯式阀(45)行进,使得由弹簧(51)的流体压力和弹簧力产生的力被平衡,从而台阶式阀芯(45)可以用作行驶模拟器。 通过改变台阶式卷轴的受压面积和/或改变弹簧(51)的弹簧力,作为输入侧的输入轴(53)的行驶特性可以独立于输出侧自由地改变,而不影响 在主缸压力作为制动压力的输出侧,增大主缸(1)。 此外,主缸压力可以在需要时以简单的结构加强。
    • 6. 发明授权
    • Hydraulic brake system
    • 液压制动系统
    • US5878573A
    • 1999-03-09
    • US967061
    • 1997-11-10
    • Michio KobayashiMasahiro Shimada
    • Michio KobayashiMasahiro Shimada
    • B60T13/12B60T13/14B60T13/68B60T13/00
    • B60T13/146B60T13/686
    • In a hydraulic brake system of the present invention, the communication between a power chamber 30 of a hydraulic booster 2 and wheel cylinders (WCY) 58, 59 is allowed by a switching valve 64 when fluid pressure of an accumulator (ACC) 46 exceeds predetermined pressure. During braking operation, the fluid pressure of the ACC 46 introduced in the power chamber 30 is introduced directly to the WCYs 58, 59, thereby rapidly actuating brakes and thus improving the response. When the fluid pressure of the ACC 46 is less than the predetermined pressure, the communication between a fluid chamber 57 of a master cylinder (MCY) 3 and the WCYs 58, 59 is allowed by the switching valve 64. During braking operation, MCY pressure developed by a MCY piston 53 operated by an input shaft 21 through a power piston 10 is introduced into the WCYs 58, 59 through the switching valve 64. The brakes can securely work even when the fluid pressure of the ACC 46 is less than the predetermined pressure.
    • 在本发明的液压制动系统中,当蓄能器(ACC)46的流体压力超过预定值时,液压助力器2的动力室30与轮缸(WCY)58,59之间的连通被切换阀64允许 压力。 在制动操作期间,引入到动力室30中的ACC 46的流体压力被直接引入到WCY 58,59中,由此快速地致动制动器,从而改善响应。 当ACC 46的流体压力小于预定压力时,主缸(MCY)3的流体室57与WCY 58,59之间的连通被切换阀64允许。在制动操作期间,MCY压力 由通过动力活塞10由输入轴21操作的MCY活塞53开发的通过切换阀64被引入到WCY 58,59中。即使当ACC 46的流体压力小于预定值时,制动器也可以可靠地工作 压力。
    • 10. 发明授权
    • Projector and method for controlling same
    • 投影机及其控制方法
    • US08960926B2
    • 2015-02-24
    • US13579246
    • 2010-03-03
    • Michio Kobayashi
    • Michio Kobayashi
    • G03B21/14G03B9/06H04N9/31G03B21/20
    • G03B9/06G03B21/2053H04N9/315
    • In order to minimize a change in the luminance of a projected image caused by a lamp refreshing process, projector 10 according to the present invention includes lamp refreshing controller 13 which, upon detecting that the lighting power of lamp 15 is lower than rated power thereof for a given period of time, increases the lighting power of lamp 15 to the rated power and, after elapse of a predetermined period of time, reduces the lighting power to an original level thereof, and aperture data generator 16 which controls the aperture of optical diaphragm 18 depending on a change in the lighting power to keep constant the amount of light passing through optical diaphragm 18.
    • 为了最小化由灯更新处理引起的投影图像的亮度的变化,根据本发明的投影仪10包括灯更新控制器13,其在检测到灯15的点亮功率低于其额定功率时用于 在给定的时间段内,将灯15的照明功率提高到额定功率,并且在经过预定时间段之后将照明功率降低到其原始水平,并且控制光学膜片的孔径的孔径数据发生器16 取决于照明功率的变化以保持通过光学膜片18的光量恒定。