公开(公告)号：US06301883B1

公开(公告)日：2001-10-16

申请号：US09374664

申请日：1999-08-16

申请人： Gary Chris Fulks ,  James William Zehnder, II ,  Douglas E. Poole ,  Timothy Allen Haerr ,  Michelle Kay Goecke ,  Timothy M. Schlangen

发明人： Gary Chris Fulks ,  James William Zehnder, II ,  Douglas E. Poole ,  Timothy Allen Haerr ,  Michelle Kay Goecke ,  Timothy M. Schlangen

IPC分类号： F16D3102

CPC分类号： B60T13/46 ,  B60T17/02

摘要： A brake booster provides additional boost capacity without unduly increasing booster size and weight by providing a vacuum pump connected so as to add its additional vacuum capacity to that of the normal vacuum source when activated in response to sensed approaching run-out. The additional vacuum is provided by connecting the vacuum pump in a second conduit between the vacuum source and the booster vacuum chamber in parallel with a first conduit connecting the vacuum source directly with the booster vacuum chamber, with check valve means in the first and second conduits preventing substantial vacuum loss from the vacuum chamber. Approaching run-out is signaled by a sensor responsive to a vacuum level in the working chamber; and control means are responsive to a predetermined low value of the sensed vacuum level in the working chamber to activate the vacuum pump and thus increase the vacuum level in the vacuum chamber over that produced by the vacuum source, whereby a greater pressure differential is available across the booster diaphragm before run-out is encountered. An optional sensor responsive to vacuum level in the vacuum chamber enables the vacuum pump to be additionally used for backup of the vacuum source while still providing the functionality of the invention in most cases. The venting of the vacuum pump to the vacuum source reduces released noise which might otherwise require bulky noise filter apparatus.

摘要翻译： 制动助力器通过提供连接的真空泵来增加额外的增压能力，而不会不适当地增加增压器的尺寸和重量，以便当响应于感测到的接近跳动而被激活时，其额外的真空容量增加到正常真空源的额外真空容量。 通过将真空泵连接到真空源和增压真空室之间的第二导管中，与将真空源直接连接到增压真空室的第一导管并联连接真空泵，第一和第二导管中的止回阀装置 防止真空室中的真空损失。 通过响应于工作室中的真空水平的传感器发出接近跳动信号; 并且控制装置响应于工作室中检测到的真空水平的预定低值以激活真空泵并因此增加真空室中的真空水平超过由真空源产生的真空水平，由此可以跨越更大的压力差 在遇到失效之前加强隔膜。 响应于真空室中的真空水平的可选传感器使真空泵能够附加地用于真空源的备份，同时在大多数情况下仍然提供本发明的功能。 真空泵向真空源的排气减少了释放的噪音，否则可能需要庞大的噪声过滤装置。

公开(公告)号：US06443536B1

公开(公告)日：2002-09-03

申请号：US09775300

申请日：2001-02-01

申请人： Steven Lee Tracht ,  Jerry Lee Newton ,  George A. Spaeth ,  Demetris Andreou Agrotis ,  Michelle Kay Goecke ,  Elaine Ann Ruble

发明人： Steven Lee Tracht ,  Jerry Lee Newton ,  George A. Spaeth ,  Demetris Andreou Agrotis ,  Michelle Kay Goecke ,  Elaine Ann Ruble

IPC分类号： B60T836

CPC分类号： B60T15/028 ,  B60T8/368 ,  Y10S303/04 ,  Y10S303/10

摘要： Master cylinder pressure of either or both of the primary and secondary braking circuits is sensed by a pressure sensor or sensors mounted in a manifold which is installed directly on a brake pressure modulator housing when the modulator is manufactured. The pressure sensors receive power and are grounded through the electronic control unit which is an integral component of the modulator; accordingly, the sensors do not require external electrical connections other than those already provided on the modulator. Since the sensing manifold is installed and tested for leaks when the modulator is manufactured and before the modulator is shipped to the vehicle assembly plant, assembly operations in addition to those required in installation of the modulator in the vehicle braking system are not required.

摘要翻译： 主制动电路和二次制动电路中的一个或两个的主汽缸压力由安装在歧管中的压力传感器或传感器来感测，该歧管直接安装在制动压力调节器壳体上，当制造调制器时。 压力传感器接收电力并通过作为调制器的组成部分的电子控制单元接地; 因此，传感器不需要外部电连接，而不是那些已经提供在调制器上的电气连接。 由于传感歧管在制造调制器时被安装并测试泄漏，并且在将调制器运送到车辆组装工厂之前，除了在车辆制动系统中安装调制器所需的装配操作之外，还不需要组装操作。