-
公开(公告)号：US06626269B2
公开(公告)日：2003-09-30
申请号：US09990089
申请日：2001-11-21
申请人： Schuyler Scott Shaw , Bryan Peter Riddiford , John Benjamin Hageman , Donald Edward Schenk , David Bernard Drennen
发明人： Schuyler Scott Shaw , Bryan Peter Riddiford , John Benjamin Hageman , Donald Edward Schenk , David Bernard Drennen
IPC分类号： F16D5536
CPC分类号： F16D65/18 , F16D65/567 , F16D2065/386 , F16D2121/02 , F16D2121/24 , F16D2127/06
摘要： A disc brake caliper assembly has a housing with a bore. A piston in the bore is movable between applied, retracted and knock-back positions. The piston is activatable by hydraulic pressure to move from the retracted position to the applied position; and a retracting seal is effective in the absence of the hydraulic pressure to move the piston from the applied position to the retracted position. A linkage adjacent the piston carries a stop; and an actuator is responsive to an end of brake activation signal to cause the linkage to engage the stop with the piston when the piston is retracted from its applied position to its retracted position so as to prevent the piston from moving from the retracted position to the knock-back position. The actuator is preferably a comparatively weak electric motor that stalls as the stop engages the piston; and the stall is sensed to end motor activation. The end of brake activation signal is preferably provided by a brake position or pressure sensor. The apparatus is adaptable to an electronic park brake control.
-
公开(公告)号：US6014862A
公开(公告)日：2000-01-18
申请号：US48491
申请日：1998-03-26
IPC分类号： B60T7/04 , B60T11/20 , B60T11/232 , F15B13/14 , F15B21/12
CPC分类号： B60T11/20 , B60T11/232 , B60T7/042 , F15B13/14
摘要： A brake system includes a pedal feel emulator and a master cylinder with a damping mechanism having a damping piston. When the emulator piston is moved from the at-rest position, fluid is displaced from the emulator through a compensation port and through a flow restrictive orifice in the damping piston to the reservoir. Flow rate of the fluid is dependent on the apply rate of the brake pedal. When the brake pedal is applied relatively slowly, sufficient flow volume will occur through the flow restrictive orifice and the damping piston will remain unmoved. As apply rates increase, a sufficient pressure differential will eventually be established across the damping piston to cause it to move. Damping piston movement compensates for rapid fluid displacement out of the variable chamber and enables a desirable pedal feel characteristic where pedal force increases relatively slowly as pedal velocity increases relatively rapidly. As the damping piston movement provides increasing volume, the pressure differential drops across the damping piston and it will cease to move as flow is accommodated solely through the flow restrictive orifice. As this occurs, pedal force will increase more rapidly providing a two-stage damping characteristic.
摘要翻译： 制动系统包括踏板感觉模拟器和具有阻尼机构的主缸，该阻尼机构具有阻尼活塞。 当仿真器活塞从静止位置移动时，流体从仿真器通过补偿端口并通过阻尼活塞中的限流孔移动到储存器。 流体的流速取决于制动踏板的施加率。 当制动踏板相对缓慢地施加时，通过限流孔会发生足够的流量，并且阻尼活塞将保持不动。 当施加率增加时，将最终在阻尼活塞上建立足够的压力差，以使其移动。 阻尼活塞运动补偿了可变腔室中的快速液体位移，并且能够提供令人满意的踏板感觉特性，其中踏板力相对较慢地增加，因为踏板速度相对快速地增加。 随着阻尼活塞的运动提供增加的体积，压力差通过阻尼活塞而下降，并且当流仅容纳通过限流孔口时，其将停止移动。 当发生这种情况时，踏板力将增加更快，提供两级阻尼特性。
-
公开(公告)号：US06481543B1
公开(公告)日：2002-11-19
申请号：US09633942
申请日：2000-08-08
申请人： Schuyler Scott Shaw , Bryan Peter Riddiford , John Benjamin Hageman , Donald Edward Schenk , David Bernard Drennen
发明人： Schuyler Scott Shaw , Bryan Peter Riddiford , John Benjamin Hageman , Donald Edward Schenk , David Bernard Drennen
IPC分类号： F16D5502
CPC分类号： F16D65/18 , F16D65/567 , F16D2065/386 , F16D2121/02 , F16D2121/24 , F16D2127/06
摘要： A disc brake caliper assembly is provided that includes a housing having a bore. A piston is arranged within the bore and is movable between normal retracted and knock-back positions. A linkage is adjacent to the piston and is movable between first and second positions with a clearance between the piston and the linkage in the first position. The clearance undesirably permits the piston to move to the knock-back position during severe operating conditions. An actuator, which also may be used as part an electric parking brake, moves the linkage from the first position to the second position to eliminate the clearance when the linkage is moved from the first position to the second position where the linkage abuts the piston. The linkage is connected to the caliper housing by a support. The linkage prevents the piston from moving from the normal retracted position to the knock-back position. In operation, the present invention prevents piston knock-back by sending an adjustment signal from a controller to the actuator at a predetermined interval. The signal commands the actuator to move a linkage from the first to the second position where the linkage abuts the piston. In this manner, the linkage prevents the piston from moving from a normal retracted position to a knock-back position.
摘要翻译： 提供了一种盘式制动钳组件，其包括具有孔的壳体。 孔内布置有活塞，并可在正常的缩回位置和倒退位置之间移动。 联动装置与活塞相邻，并且可在第一和第二位置之间移动，在第一位置中活塞与联动装置之间具有间隙。 在严格的操作条件期间，间隙不期望地允许活塞移动到撞击位置。 也可以用作电动驻车制动器的部件的致动器将联动装置从第一位置移动到第二位置，以便当联动装置从第一位置移动到联动装置邻接活塞的第二位置时消除间隙。 连杆通过支撑件连接到卡钳外壳。 联动装置防止活塞从正常缩回位置移动到敲击位置。 在操作中，本发明通过以预定的间隔将调节信号从控制器发送到致动器来防止活塞翻倒。 信号命令致动器将连杆从第一位置移动到第二位置，在该位置，联动装置邻接活塞。 以这种方式，联动装置防止活塞从正常缩回位置移动到敲击位置。
-
公开(公告)号：US06390565B1
公开(公告)日：2002-05-21
申请号：US09791381
申请日：2001-02-23
IPC分类号： B60T1374
摘要： A brake by wire system provides the capability of both travel and force sensors on a brake apply input member such as a brake pedal and also provides redundancy in sensors by providing the signal from a sensor responsive to travel or position of the brake pedal to a first controller and the signal from a sensor responsive to force applied to the brake pedal to a second controller. The first and second controllers are connected by a bi-directional communication link whereby each controller may communicate its received one of the sensor signals to the other controller. In at least one of the controllers, linearized versions of the signals are combined for the generation of first and second brake apply command signals for communication to brake apply units. If either controller does not receive one of the sensor signals from the other, it nevertheless generates its brake apply command signal on the basis of the sensor signal provided directly to it from the sensor. In a preferred embodiment of the system, a controller combines the linearized signals by choosing the largest in magnitude.
-
公开(公告)号：US5823636A
公开(公告)日：1998-10-20
申请号：US806003
申请日：1997-02-24
IPC分类号： B60T7/04 , B60T7/22 , B60T8/24 , B60T8/32 , B60T8/40 , B60T13/58 , B60T13/74 , F16D51/26 , F16D65/14
CPC分类号： B60T8/4081 , B60T13/58 , B60T13/741 , B60T7/042 , B60T7/22 , B60T8/3205 , B60T8/3255 , F16D51/26 , F16D2121/02 , F16D2121/24 , F16D2123/00 , F16D2125/40 , F16D2125/64
摘要： A vehicle braking system that primarily operates as a pure brake-by-wire system, with optional hydraulic actuation. The system includes a set of four electrically actuated drum brakes. At least two of the wheel brakes include hydraulic actuators that operate to apply the wheel brakes independent of electric control. Each of the wheel brakes is normally operated in response to a control signal generated by the vehicle's brake processor. As such, a primary brake-by-wire system is provided at all four vehicle wheels. The rear brakes are proportioned to the front brakes electrically, according to design criteria.
摘要翻译： 一种车辆制动系统，主要作为纯制动线制系统运行，具有可选的液压驱动。 该系统包括一组四个电动鼓式制动器。 至少两个车轮制动器包括液压致动器，其操作以独立于电气控制来施加车轮制动器。 每个车轮制动器通常响应于由车辆的制动处理器产生的控制信号来操作。 因此，在所有四个车轮上设置有主要的线制制动系统。 根据设计标准，后制动器与前制动器电气成比例。
-
公开(公告)号：US06305758B1
公开(公告)日：2001-10-23
申请号：US09270560
申请日：1999-03-16
IPC分类号： B60T842
CPC分类号： B60T13/745 , B60T8/326 , B60T8/4072 , B60T8/4081
摘要： An electro-hydraulic actuator for a motor vehicle brake-by-wire brake system including a housing, a piston bore in the housing, a T-shaped piston in the piston bore, and an electric motor connected to the piston through a speed reducer. The T-shaped piston includes a disc-shaped head in the piston bore and a tubular stem perpendicular slidable in and out of the piston bore through a sealed guide in the bottom of the piston bore. The top side of the piston head opposite the stem constitutes a large effective area of the piston for rapidly expelling a relatively large volume of fluid from the piston bore in a low pressure interval of operation the actuator. When the fluid pressure in the piston bore exceeds a transition pressure, a transition valve opens a bypass passage to the piston bore behind the piston head so that the same fluid pressure reacts against the bottom side of the piston head around the stem. A high pressure interval of operation of the electro-hydraulic actuator then ensues in which the effective area of the piston is reduced to the area of the cross-sectional profile of the stem.
摘要翻译： 一种用于机动车辆制动线制动系统的电动液压致动器，包括壳体，壳体中的活塞孔，活塞孔中的T形活塞，以及通过减速器连接到活塞的电动马达。 T形活塞在活塞孔中包括一个盘形头部，以及通过活塞孔底部的密封引导件可垂直地滑动进出活塞孔的管状阀杆。 与杆相对的活塞头的顶部构成了活塞的大的有效面积，用于在致动器的低压操作间隔中快速地从活塞孔排出相当大体积的流体。 当活塞孔中的流体压力超过过渡压力时，过渡阀打开活塞头后面的活塞孔的旁通通道，使得相同的流体压力相对于活塞头的底部侧面反应。 然后电动液压致动器的高压操作间隔随之而来，其中活塞的有效面积减小到杆的横截面轮廓的面积。
-
公开(公告)号：US06186026B1
公开(公告)日：2001-02-13
申请号：US09283433
申请日：1999-04-01
IPC分类号： G05G114
CPC分类号： G05G1/30 , Y10T74/20528 , Y10T74/20888
摘要： A brake pedal for a motor vehicle brake-by-wire brake system including a pedal lever resiliently flexible in beam bending, a foot pad on the pedal lever, and a mounting for the pedal lever on a body of the motor vehicle which constitutes the pedal lever a variable stiffness cantilever spring. The mounting for the pedal lever includes a socket for an inboard end of the pedal lever, a stationary reaction surface on the body of the motor vehicle, and a pedal lever reaction surface on the pedal lever which faces and diverges from the stationary reaction surface in a release position of the pedal lever. The stationary reaction surface and the pedal lever reaction surface become progressively engaged concurrent with resilient flexure of the pedal lever in cantilever spring bending to vary the stiffness of the cantilever spring. The stationary and pedal lever reaction surfaces are contoured or “tuned” to yield a pedal force which initially increases slowly relative to pedal travel and then increases exponentially relative to pedal travel thereby emulating the relationship between pedal force and pedal travel of a brake pedal in a traditional motor vehicle brake system.
摘要翻译： 一种用于机动车辆制动踏板的制动踏板，其包括具有弹性弯曲的弯曲的踏板杆，踏板杆上的脚踏板和用于构成踏板的机动车辆的车身上的踏板杆的安装件 杠杆可变刚度悬臂弹簧。 用于踏板杆的安装件包括用于踏板杆的内侧端部的插座，机动车辆主体上的固定的反作用表面，以及踏板杆上的踏板杆反作用表面，该踏板杆从反作用表面朝向和分离 踏板杆的释放位置。 静止的反作用表面和踏板杆反作用表面随着踏板杆在弹簧弯曲中的弹性挠曲而逐渐接合，以改变悬臂弹簧的刚度。 固定和踏板杆反作用表面被轮廓化或“调谐”以产生踏板力，其最初相对于踏板行程缓慢增加，然后相对于踏板行程指数地增加，从而模拟踏板力和踏板行程在踏板行程中的关系 传统汽车制动系统。
-
公开(公告)号：US5927825A
公开(公告)日：1999-07-27
申请号：US761878
申请日：1996-12-09
CPC分类号： B60T8/4081 , B60T8/4266 , B60T8/4863
摘要： An electro-hydraulic brake apply system includes an emulator that effects pedal feel simulation by allowing compliance at a selective variable rate. This provides a vehicle driver with the preferred pedal travel and feedback characteristics of a conventional master cylinder/power booster apply system. As a secondary function, the emulator is utilized to latch the modulator. This locks the modulator apply piston in place when electrical power is removed from the drive motor. Further, the emulator operates to hydraulically isolate the master cylinder from the wheel brakes during normal system operation.
摘要翻译： 电动液压制动器应用系统包括仿真器，通过允许以选择性可变速率的顺应来实现踏板感觉模拟。 这为车辆驾驶员提供了常规主缸/动力助力器施加系统的优选踏板行程和反馈特性。 作为次要功能，仿真器用于锁存调制器。 当从驱动电机中取出电源时，这将锁定调节器施加的活塞。 此外，仿真器在正常系统操作期间操作以将主缸与车轮制动器液压隔离。
-
公开(公告)号：US5716111A
公开(公告)日：1998-02-10
申请号：US636085
申请日：1996-04-22
CPC分类号： B60T8/4031 , B60T8/34 , B60T8/341 , B60T8/3615 , B60T8/4275 , B60T8/5037 , Y10S303/01 , Y10S303/02
摘要： A rotary actuated braking system includes a motor driven shaft that operates two pairs of piston pumps and an allocation valve which, in combination with a single solenoid valve, effects ABS operation of the braking system. A combination of pressure operated control valves and pressure operated release valves for each control wheel brake respond to operation of the rotary actuator and solenoid valve to effect ABS pressure release and reapply from the corresponding wheel brake. A power boosted master cylinder provides base brake operation independent of the rotary actuator effected ABS operation.
摘要翻译： 旋转致动制动系统包括操作两对活塞泵的电动机驱动轴和与单个电磁阀组合实现制动系统的ABS操作的分配阀。 每个控制轮制动器的压力操作控制阀和压力释放阀的组合响应旋转致动器和电磁阀的操作，以实现ABS压力释放并从相应的车轮制动器重新应用。 增压主缸提供基本制动操作，独立于旋转执行器进行ABS操作。
-
公开(公告)号：US5709087A
公开(公告)日：1998-01-20
申请号：US682343
申请日：1996-07-18
CPC分类号： B60T13/145
摘要： A power brake apply system includes a master cylinder having a piston for generating fluid pressure within a braking circuit. A boost valve assembly is mounted adjacent the master cylinder and carries a slidable spool that selectively closes off a normal path of communication between a fluid reservoir and the boost chamber of the master cylinder in response to the manual actuation of the master cylinder's piston as effected through a pressurized braking circuit. After closure of communication between the reservoir and the boost chamber a power fluid supply is opened to the boost chamber to provide power assist in the actuation of the master cylinder's piston.
摘要翻译： 动力制动施加系统包括具有用于在制动电路内产生流体压力的活塞的主缸。 升压阀组件安装在主缸附近，并且承载滑动阀芯，其可响应于通过主缸的活塞的手动致动而选择性地关闭主缸的流体储存器和升压室之间的正常连通路径 加压制动电路。 在储存器和增压室之间的连通关闭之后，向增压室开启动力流体供应，以在主缸的活塞的致动中提供动力辅助。
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.021 秒)
