公开(公告)号：US06668551B2

公开(公告)日：2003-12-30

申请号：US09970333

申请日：2001-10-03

申请人： John B. Hageman ,  Ernest R. Siler ,  Paul Rymoff ,  Ernst S. Baumgartner ,  Harald Klode

发明人： John B. Hageman ,  Ernest R. Siler ,  Paul Rymoff ,  Ernst S. Baumgartner ,  Harald Klode

IPC分类号： F01B900

CPC分类号： B60T13/746 ,  B60T11/046

摘要： An actuator assembly for a vehicle brake system or clutch pack comprises a motor shaft having a first tapered cutout, and a ballscrew shaft having a second tapered cutout. The first and second tapered cutouts being adapted to mate.

公开(公告)号：US06549126B2

公开(公告)日：2003-04-15

申请号：US09769644

申请日：2001-01-25

申请人： John B. Hageman ,  Paul Rymoff, Jr. ,  Ernst S. Baumgartner ,  John C. Layman

发明人： John B. Hageman ,  Paul Rymoff, Jr. ,  Ernst S. Baumgartner ,  John C. Layman

IPC分类号： B60Q100

CPC分类号： B60T17/225 ,  B60T8/00 ,  B60T17/22 ,  F16D66/02 ,  F16D2066/006

摘要： The present invention provides a sensor system for detecting lining wear and fluid level in a dry interface corner actuator for a single wheel brake including a reservoir assembly. The reservoir assembly includes a reservoir for containing fluid for the actuator and a sensor assembly positioned in the reservoir having a single set point to indicate both low reservoir fluid level and a need for brake lining replacement.

公开(公告)号：US06533369B2

公开(公告)日：2003-03-18

申请号：US09821970

申请日：2001-03-30

申请人： Ernst S. Baumgartner ,  Bryan Peter Riddiford ,  Schuyler S. Shaw ,  John Benjamin Hageman ,  Richard James Thomas

发明人： Ernst S. Baumgartner ,  Bryan Peter Riddiford ,  Schuyler S. Shaw ,  John Benjamin Hageman ,  Richard James Thomas

IPC分类号： B60T860

CPC分类号： B60T8/4081

摘要： A brake system and method of controlling the system are disclosed. The system provides secondary hydraulic braking in a de-energized mode. The system includes a wheel brake associated with wheels of a vehicle typically at each corner of the vehicle. The wheel brake typically includes a caliper or drum for deceleration of the vehicle. The system includes a master cylinder in fluid communication with the wheel brake. In the de-energized mode, the master cylinder operates the wheel brake. A solenoid isolation valve decouples the master cylinder from the wheel brake when the system is in a normal, i.e., an energized, mode. As such, the master cylinder is isolated from the wheel brake and is prevented from operating the wheel brake. Alternatively, in the de-energized mode, the isolation valve couples the master cylinder with the wheel brake to provide the secondary hydraulic braking. The system includes an actuator assembly for operation of the wheel brake independent of the master cylinder when the system is in the energized operational mode. A second, normally-closed, solenoid valve opens in the energized mode to couple the actuator assembly with the wheel brake. The second solenoid valve closes in the de-energized mode to isolate the actuator assembly from the wheel brake such that the secondary hydraulic braking is provided through the master cylinder.