Brake booster
    1.
    发明授权
    Brake booster 失效
    制动助力器

    公开(公告)号:US6119577A

    公开(公告)日:2000-09-19

    申请号:US187968

    申请日:1998-11-06

    摘要: 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.

    摘要翻译: 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。

    Brake system
    2.
    发明授权
    Brake system 失效
    刹车系统

    公开(公告)号:US06244049B1

    公开(公告)日:2001-06-12

    申请号:US09225484

    申请日:1999-01-06

    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。

    Brake system
    4.
    发明授权
    Brake system 失效
    刹车系统

    公开(公告)号:US06513416B2

    公开(公告)日:2003-02-04

    申请号:US09828236

    申请日:2001-04-09

    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。

    Brake boosting system
    5.
    发明授权
    Brake boosting system 失效
    制动助力系统

    公开(公告)号:US06183049B2

    公开(公告)日:2001-02-06

    申请号:US09226113

    申请日:1999-01-07

    IPC分类号: B60T844

    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。

    Brake booster
    6.
    发明授权
    Brake booster 有权
    制动助力器

    公开(公告)号:US6155156A

    公开(公告)日:2000-12-05

    申请号:US187959

    申请日:1998-11-06

    摘要: A brake booster includes a solenoid disposed within a valve body. When the solenoid is energized under the inoperative condition of the brake booster, a piston associated with the solenoid is moved to its operative position to close a vacuum valve while opening an atmosphere valve. This allows the brake booster to be operated as an automatic brake without depressing a brake pedal. The brake booster also comprises output restriction means which may comprise a spring 55 shown in FIG. 1, for example, whereby as the output increases when the brake booster is operated as an automatic brake, the output restriction means operates to cease an increase in the output. With this arrangement, if the solenoid is energized inadvertently independently from the intent of a driver, the occurrence of a quick braking action is avoided, but a gentle braking action is assured, thus improving the safeguard.

    摘要翻译: 制动助力器包括设置在阀体内的螺线管。 当螺线管在制动助力器的不工作状态下通电时,与螺线管相关联的活塞被移动到其操作位置,以在打开大气阀时闭合真空阀。 这允许制动助力器作为自动制动而不踩制动踏板。 制动助力器还包括输出限制装置,其可以包括图1所示的弹簧55。 如图1所示,例如,当制动助力器作为自动制动器操作时,当输出增加时,输出限制装置操作以停止输出的增加。 通过这种布置,如果螺线管不经意地从驾驶员的意图被激励,则避免了快速制动动作的发生,但是确保了平缓的制动动作,从而改善了保护措施。

    Brake booster
    7.
    发明授权
    Brake booster 失效
    制动助力器

    公开(公告)号:US06467266B1

    公开(公告)日:2002-10-22

    申请号:US09662026

    申请日:2000-09-14

    IPC分类号: B60T1314

    摘要: 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.

    摘要翻译: 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。

    Brake system
    8.
    发明授权
    Brake system 失效
    刹车系统

    公开(公告)号:US06491356B2

    公开(公告)日:2002-12-10

    申请号:US09771777

    申请日:2001-01-29

    IPC分类号: F15B1316

    摘要: 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.

    摘要翻译: 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。

    Master cylinder
    10.
    发明授权
    Master cylinder 失效
    主缸

    公开(公告)号:US06367254B1

    公开(公告)日:2002-04-09

    申请号:US09561398

    申请日:2000-04-28

    IPC分类号: B60T1312

    CPC分类号: B60T13/165

    摘要: A master cylinder which includes a primary piston and a thrust piston disposed within a housing, and defines an intensifying chamber at a location rearward of the thrust piston. An input shaft has a front end which is disposed within the intensifying chamber. The thrust piston is formed with a communication path (discharge passage), and a control valve is disposed between the thrust piston and the front end of the input shaft to open or close the communication path (discharge passage). When the input shaft is driven forward under the inoperative condition shown and the pump is operated to introduce a discharge pressure from the pump into the intensifying chamber, a liquid pressure is generated in the intensifying chamber and drives the primary piston forward, generating a liquid pressure in a liquid pressure chamber. In this manner, a master cylinder can be provided which has a simple and inexpensive construction with a reduced number of parts and which is compact in size. The master cylinder is capable of providing an increased braking force as required by intensifying a master cylinder pressure.

    摘要翻译: 主缸,其包括主活塞和设置在壳体内的推力活塞,并且在推力活塞的后方的位置处限定增压室。 输入轴具有设置在增压室内的前端。 推力活塞形成有连通路径(排出通道),并且控制阀设置在推力活塞和输入轴的前端之间,以打开或关闭连通路径(排放通道)。 当输入轴在所示的不工作状态下向前驱动并且泵被操作以将泵的排出压力引入增压室中时,在增压室中产生液体压力并将主活塞向前驱动,产生液体压力 在液压室中。 以这种方式,可以提供主缸,其具有简单且廉价的结构,其中部件数量减少,并且尺寸紧凑。 主缸能够通过增加主缸压力而提供增加的制动力。