公开(公告)号：US06568768B1

公开(公告)日：2003-05-27

申请号：US09219766

申请日：1998-12-23

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

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

IPC分类号： B60T834

CPC分类号： B60T8/442 ,  B60T7/042 ,  B60T8/18 ,  B60T8/28 ,  B60T8/3275 ,  B60T8/441 ,  B60T8/94 ,  B60T13/52 ,  B60T13/72 ,  B60T17/221

摘要： A brake system 1 of the present invention comprises a brake operating means 2 such as a brake pedal for carrying braking operation, a fluid variable stroke means 3 which variably controls the stroke of the brake operating means 2 by using fluid, and a braking force output means 4 which is actuated by the operation of the brake operating means 2 to produce braking forces. By manipulating the brake operating means 2, the braking force output means 4 performs the braking operation. The traveling rang of the brake operating means 2 i.e. the stroke can be changed variously by the fluid variable stroke means 3 using fluid. Since the stroke of the brake pedal can be changed as mentioned above, a proper pedal stroke can be obtained.

摘要翻译： 本发明的制动系统1包括制动操作装置2，例如用于承载制动操作的制动踏板，通过使用流体可变地控制制动操作装置2的行程的流体可变行程装置3和制动力输出 装置4，其由制动操作装置2的操作致动以产生制动力。 通过操纵制动操作装置2，制动力输出装置4执行制动操作。 制动器操作装置2的行程，即行程可以通过使用流体的流体可变行程装置3而不同地改变。 由于可以如上所述地改变制动踏板的行程，所以可以获得适当的踏板行程。

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：US06244049B1

公开(公告)日：2001-06-12

申请号：US09225484

申请日：1999-01-06

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： B60T1320

CPC分类号： B60T13/565 ,  B60T13/573

摘要： A counter-force mechanism (37), which produces a counter force when a brake booster is operated, is made up of an input-side member (38) slidably 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 counter-force mechanism (37) is reduced by an orifice passage (43) as a counter-force reducing means in rapid operation of the brake.

摘要翻译： 在制动助力器工作时产生反作用力的反作用力机构（37）由可滑动地设置在阀体（3）内的输入侧构件（38），第二恒压室 39）形成在输入侧构件的后侧，并且从恒压室（A）引入压力，并且形成在输入侧构件的前侧的第二恒压室（39） 并且从可变压力室（B）引入压力。 来自反力机构（37）的反作用力通过作为制动器快速操作的反力减小装置的节流孔通道（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：US06196641B1

公开(公告)日：2001-03-06

申请号：US09181994

申请日：1998-10-29

申请人： Hiroyuki Oka ,  Michio Kobayashi ,  Masahiro Shimada ,  Satoru Watanabe ,  Junichi Hirayama ,  Mamoru Sawada ,  Yuzo Imoto

发明人： Hiroyuki Oka ,  Michio Kobayashi ,  Masahiro Shimada ,  Satoru Watanabe ,  Junichi Hirayama ,  Mamoru Sawada ,  Yuzo Imoto

IPC分类号： B60T844

CPC分类号： B60T13/144 ,  B60T8/3275 ,  B60T8/441 ,  B60T8/4845 ,  B60T8/4872

摘要： 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.

摘要翻译： 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。

公开(公告)号：US06564553B2

公开(公告)日：2003-05-20

申请号：US09842109

申请日：2001-04-26

申请人： Hiroyuki Oka ,  Michio Kobayashi ,  Masahiro Shimada ,  Mamoru Sawada ,  Kazuya Maki ,  Hiroaki Niino

发明人： Hiroyuki Oka ,  Michio Kobayashi ,  Masahiro Shimada ,  Mamoru Sawada ,  Kazuya Maki ,  Hiroaki Niino

IPC分类号： B60T1312

CPC分类号： B60T8/4077 ,  B60T8/00 ,  B60T8/3275 ,  B60T8/4845 ,  B60T11/224 ,  B60T13/12

摘要： 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.

摘要翻译： 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。

公开(公告)号：US06352316B1

公开(公告)日：2002-03-05

申请号：US09542705

申请日：2000-04-03

申请人： Hiroyuki Oka ,  Yoshiyasu Takasaki ,  Masahiro Shimada

发明人： Hiroyuki Oka ,  Yoshiyasu Takasaki ,  Masahiro Shimada

IPC分类号： B60T844

CPC分类号： B60T8/442 ,  B60T7/042 ,  B60T8/3275 ,  B60T8/4275 ,  B60T8/92 ,  B60T13/565 ,  B60T13/573 ,  B60T13/686 ,  B60T17/02 ,  B60T17/221

摘要： A brake system including a negative pressure booster, a master cylinder of tandem type and an intensifying arrangement. The intensifying arrangement defines an intensifying chamber disposed rearward of a primary piston, a pump for supplying a braking liquid to the intensifying chamber, and a reaction piston and a sleeve for controlling the pressure of the braking liquid which is supplied to the intensifying chamber. As a brake pedal is depressed and the intensifying arrangement is actuated, a sum of an urging force from the negative pressure booster and an urging force from the intensifying arrangement operates the primary piston to develop a master cylinder pressure. The sum is proportional to the input or a force depressing the brake pedal. In this manner, a simple arrangement assures a satisfactory booster function even after the negative pressure booster has reached a full load point or the limit of its assistance or in the event of the failure of a source of a negative pressure for the negative pressure booster.

摘要翻译： 一种制动系统，包括负压增压器，串联式主缸和增压装置。 增强装置限定了设置在主活塞后方的增压室，用于向增压室供应制动液体的泵，以及用于控制供给到增压室的制动液体的压力的反应活塞和套筒。 当制动踏板被压下并且增强装置被致动时，来自负压增压器的推动力和来自增压装置的推动力的总和操作主活塞以产生主缸压力。 总和与输入成比例，或者是压制动踏板的力。 以这种方式，即使在负压增压器达到满负荷点或其辅助极限之后或在负压增压器的负压源发生故障的情况下，也能够简单地确保令人满意的增压功能。

公开(公告)号：US6164070A

公开(公告)日：2000-12-26

申请号：US173760

申请日：1998-10-16

申请人： Michio Kobayashi ,  Masahiro Shimada ,  Satoru Watanabe

发明人： Michio Kobayashi ,  Masahiro Shimada ,  Satoru Watanabe

IPC分类号： B60T13/12 ,  B60T13/14 ,  B60T13/00

CPC分类号： B60T13/145

摘要： 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.

摘要翻译： 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。

公开(公告)号：US5878573A

公开(公告)日：1999-03-09

申请号：US967061

申请日：1997-11-10

申请人： Michio Kobayashi ,  Masahiro Shimada

发明人： Michio Kobayashi ,  Masahiro Shimada

IPC分类号： B60T13/12 ,  B60T13/14 ,  B60T13/68 ,  B60T13/00

CPC分类号： B60T13/146 ,  B60T13/686

摘要： 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.

摘要翻译： 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。

公开(公告)号：US06655140B2

公开(公告)日：2003-12-02

申请号：US10121714

申请日：2002-04-15

申请人： Hiroyuki Oka ,  Masahiro Shimada

发明人： Hiroyuki Oka ,  Masahiro Shimada

IPC分类号： F15B910

CPC分类号： B60T13/145

摘要： In a fluid pressure boosting device 1 of the present invention, a control valve 4 is composed of a supply valve 44 and a discharge valve 45, the supply valve 44 comprises an annular valve cone 46 of a poppet type and a first valve seat 7 and the discharge valve 45 comprises an annular valve cone 46 of a poppet type and a second valve seat 8. Inside a rear end portion of a primary piston 21 of a master cylinder 2, a reaction disk 57 made of an elastic material such as rubber is fitted. An input shaft 3 penetrating the control valve is arranged such that, in the inoperative state, an end thereof confronts the reaction disk 57 with a predetermined space therebetween and, in the operative state, the end comes in contact with said reaction disk 57 so that a reaction force is transmitted to the input shaft 3. The passage for discharging hydraulic fluid of the power chamber 9 is composed of annular passages 52, 53. Therefore, a fluid pressure boosting device of a center valve type can be provided of which the structure for attaining the jumping characteristic and the structure of passage for discharging hydraulic fluid are simple.