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    • 4. 发明授权
    • Brake boosting system
    • 制动助力系统
    • US06183049B2
    • 2001-02-06
    • US09226113
    • 1999-01-07
    • Hiroyuki OkaHidefumi InoueYoshiyasu TakasakiMasahiro ShimadaMamoru SawadaYuzo Imoto
    • Hiroyuki OkaHidefumi InoueYoshiyasu TakasakiMasahiro ShimadaMamoru SawadaYuzo Imoto
    • B60T844
    • B60T8/442B60T8/3275B60T8/328B60T8/441B60T8/4872B60T13/168B60T13/686
    • 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.
    • 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。
    • 5. 发明授权
    • Brake booster
    • 制动助力器
    • US06467266B1
    • 2002-10-22
    • US09662026
    • 2000-09-14
    • Osamu KanazawaYoshiyasu TakasakiMichio KobayashiHiroshi OsakiHidefumi InoueHiroyuki OkaHiroaki NiinoKazuya MakiMamoru Sawada
    • Osamu KanazawaYoshiyasu TakasakiMichio KobayashiHiroshi OsakiHidefumi InoueHiroyuki OkaHiroaki NiinoKazuya MakiMamoru Sawada
    • B60T1314
    • B60T7/12B60T8/441B60T8/4845B60T13/14B60T13/52
    • In a brake booster of the present invention, by depression of a brake pedal 3, an input shaft 4 travels to the left, a pedal input converter generates thrust, and a valve element 5a moves to the left. A valve passage 5a1 is shut off from a valve passage 5b1 and a valve passage 5a2 is connected to a valve passage 5b2 so as to develop output pressure Pr at an output port 5c of a control valve 5 because of the pressure of a pressure source. The output pressure Pr is supplied to a wheel cylinder 7, thereby actuating the brake. At this point, since the displacement of the input shaft 4 required for operating the control valve 5 is defined only by the converter 6, the input side is not affected by the brake rigidity of a circuit from the control valve 5 to the wheel cylinder 7. The output pressure Pr of the control valve 5 acts on the valve element 5a through a first reaction receiving portion 8 and is regulated to pressure proportional to the thrust of the converter 6. The second reaction force is transmitted to a driver through a second reaction receiving portion 9. The control of the output can be conducted during the operation regardless of the input of the input side and the respective characteristics can be varied without being affected by the output side.
    • 在本发明的制动助力器中,通过按压制动踏板3,输入轴4向左行驶,踏板输入转换器产生推力,阀元件5a向左移动。 阀通道5a1从阀通道5b1截止,阀通道5a2连接到阀通道5b2,以便由于压力源的压力而在控制阀5的输出端口5c处产生输出压力Pr。 输出压力Pr被提供给轮缸7,从而致动制动器。 此时,由于仅通过转换器6来限定操作控制阀5所需的输入轴4的位移,所以输入侧不受从控制阀5到轮缸7的回路的制动刚度的影响 控制阀5的输出压力Pr通过第一反应接收部8作用在阀体5a上,并被调节成与转换器6的推力成正比的压力。第二反作用力通过第二反应传递给驾驶员 输出的控制可以在操作期间进行,而与输入侧的输入无关,并且可以改变各个特性而不受输出侧的影响。
    • 6. 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。
    • 7. 发明授权
    • Brake system
    • 刹车系统
    • US06491356B2
    • 2002-12-10
    • US09771777
    • 2001-01-29
    • Osamu KanazawaYoshiyasu TakasakiMichio KobayashiHiroshi OhsakiMasahiro IkedaHiroyuki OkaHiroaki NiinoKazuya MakiMamoru Sawada
    • Osamu KanazawaYoshiyasu TakasakiMichio KobayashiHiroshi OhsakiMasahiro IkedaHiroyuki OkaHiroaki NiinoKazuya MakiMamoru Sawada
    • F15B1316
    • B60T13/57B60T8/3275B60T13/575B60T13/72
    • The invention relates to a brake system including a brake booster. A pneumatic pressure operated brake booster VBB or a liquid pressure operated brake booster includes a valve mechanism which is urged by a force of depression applied to a brake pedal BP to switch a flow path to cause the brake booster to develop an output which depends on the magnitude of the force of depression. A solenoid SOL urges the valve mechanism in the same direction as or in the opposite direction from the force of depression. A controller ECU is responsive to a braking effort increase/decrease demand signal to increase or decrease the urging force which is applied by the solenoid to the valve mechanism, thus increasing or decreasing the output from the brake booster. An output from the brake booster can be freely controlled independently from the force of depression applied to the brake pedal in response to a braking effort increase/decrease demand. The arrangement is applicable to a wide variety of brake systems onboard a vehicle such as a regenerative brake unit, an engine brake or an exhaust gas brake unit or a brake assisting apparatus.
    • 本发明涉及一种包括制动助力器的制动系统。 气动压力驱动的制动助力器VBB或液压操纵的制动助力器包括一个阀机构,该阀机构被施加到制动踏板BP的压力推动,以切换流动路径,以使制动助力器产生取决于 沮丧的力量的大小。 螺线管SOL在与凹陷力相反的方向上推动阀机构。 控制器ECU响应于制动力增加/减少需求信号,以增加或减少由螺线管施加到阀机构的作用力,从而增加或减少来自制动助力器的输出。 来自制动助力器的输出可以独立于响应于制动力增加/减少需求而施加到制动踏板的压力的力量而被自由地控制。 该装置适用于诸如再生制动单元,发动机制动器或排气制动单元或制动辅助装置的车辆上的各种制动系统。
    • 9. 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。
    • 10. 发明授权
    • Brake booster
    • 制动助力器
    • US6119577A
    • 2000-09-19
    • US187968
    • 1998-11-06
    • Yoshiyasu TakasakiMamoru SawadaYuzo Imoto
    • Yoshiyasu TakasakiMamoru SawadaYuzo Imoto
    • B60T13/52B60T8/32B60T13/569B60T13/57B60T13/72F15B13/16
    • B60T8/3275B60T13/569B60T13/57B60T13/72
    • A tandem brake booster includes a solenoid within a valve body, and the solenoid may be energized to move a first tubular member disposed on the valve body rearward. When an input shaft is driven forward in the inoperative condition of the brake booster, a vacuum valve is closed while an atmosphere valve is opened in the similar manner as occurs in the prior art, thus actuating the tandem brake booster 1. When an input or the force of depression applied to a brake pedal rises to a given value X during the operative condition of the brake booster, the solenoid is energized, whereupon the first tubular member is moved rearward relative to the valve body, and the valve element is also moved rearward. This opens the atmosphere valve which has been closed during the servo balance condition, allowing a further introduction of the atmosphere into variable pressure chambers B, D, enabling a rise in the output even though the input remains unchanged. In this manner, the invention provides a functioning which is equivalent to a brake booster which is arranged to provide a variable servo ratio.
    • 串联制动助力器包括阀体内的螺线管,并且螺线管可以被通电以使设置在阀体上的第一管状构件向后移动。 当输入轴在制动助力器的不工作状态下向前驱动时,以与现有技术中发生的相似的方式打开大气阀时关闭真空阀,从而致动串联制动助力器1.当输入或 在制动助力器的操作状态期间,施加到制动踏板的踩踏力上升到给定值X,螺线管通电,于是第一管状构件相对于阀体向后移动,并且阀元件也移动 向后 这打开了在伺服平衡状态期间已经关闭的大气阀,从而可以将气氛进一步引入到可变压力室B,D中,使得即使输入保持不变也能够使输出上升。 以这种方式,本发明提供了相当于设置成提供可变伺服比的制动助力器的功能。