Abstract:
A brake system has a wheel brake and is operable under a non-failure normal braking mode and a manual push-through mode. The system includes a master cylinder operable by a brake pedal during a manual push-through mode to provide fluid flow at an output for actuating the wheel brake. A first source of pressurized fluid provides fluid pressure for actuating the wheel brake under a normal braking mode. A second source of pressurized fluid generates brake actuating pressure for actuating the wheel brake under the manual push- through mode.
Abstract:
A vehicle disc brake assembly includes a brake caliper. The brake caliper has a lug through which a bore extends, the bore having an axis. A guide rod fastener extends through the bore and is secured to a guide rod. An elastic bushing is in the bore between the lug and the guide rod fastener, wherein a circumference of the bushing contacts the lug. A radial clearance is between the lug and the guide rod fastener. The radial clearance is perpendicular to the axis.
Abstract:
A disc brake assembly includes a brake clip having a U-shaped section and a plurality of dimples. The U-shaped section has a base leg and opposing upper and lower legs extending from the base leg. The plurality of dimples is on the upper leg and extend in a direction from the lower leg to the upper leg.
Abstract:
A pump attenuator bypass valve (40/100/200) is located at an outlet of a pump (30) in a vehicle braking system (10) between the pump (30) and an attenuator (34). The attenuator bypass valve (40/100/200) includes a bypass valve housing (41), a first fluid flow path (74, 57/179/220, 208), and a second fluid flow path (80/183). The first fluid flow path (74, 57/179/220, 208) is defined in the housing (41) and is configured to allow continuous flow of fluid when the pump (30) operates at a first pump flow rate. The second fluid flow path (80/183) is defined in the housing (41) and is configured to bypass the first fluid flow path (74, 57/179/220, 208) and to allow continuous flow of fluid when the pump (30) operates at a second pump flow rate higher than the first pump flow rate.
Abstract:
An electric parking brake for an automotive vehicle comprises a brake caliper having first and second bores. A first piston is mounted in the first bore and a second piston is mounted in the second bore. A first actuator supports the first piston and a second actuator supports the second piston. The first and second actuators are controlled individually.
Abstract:
A brake system includes first and second wheel brakes, a reservoir, and a brake pedal unit having a housing and a pair of output pistons slidably disposed in the housing. The output pistons generate brake actuating pressure during a manual push- through mode for actuating the first and second wheel brakes. The system further includes a plunger assembly having a housing having first and second ports, a motor driving an actuator, and a piston connected to the actuator. The piston pressurizes a first chamber when the piston is moving in a first direction to provide fluid flow out of the first port. The piston pressurizes a second chamber when the piston is moving in a second direction opposite the first direction to provide fluid flow out of the second port. The first and second ports are selectively in fluid communication with the wheel brakes.
Abstract:
A brake system includes first and second wheel brakes and a brake pedal unit including a housing and a pair of output pistons slidably disposed in the housing, The pair of output pistons are movable to generate brake actuating pressure at first and second outputs for actuating the first and second wheel brakes, respectively, during a manual push through mode. A plunger assembly for actuating the first and second wheel brakes during a normal brake apply includes a housing and a motor mounted on the housing for driving an actuator. A first piston is connected to the actuator. The first piston is slidably mounted within the housing for pressurizing a first fluid chamber in the housing. The first fluid chamber is in communication with the first wheel brake. A second piston is slidably mounted within the housing for pressurizing a second fluid chamber in the housing. The second fluid chamber is in communication with the second wheel brake. A pump-less control valve arrangement includes a first control valve regulating the flow of fluid between the first fluid chamber and the first wheel brake. A second control valve regulates the flow of fluid between the second fluid chamber and the second wheel brake. An isolation valve arrangement switches the brake system between the normal braking mode wherein boost pressure from the plunger assembly is supplied to the wheel brakes, and the manual push-through mode wherein brake actuating pressure from the brake pedal unit is supplied to the wheel brakes.
Abstract:
A control dial (12, 14) includes an array of spaced sensor elements (18, 20) and a display (22) located within the dial for displaying a desired control value. A controller (30) is connected to said plurality of sensor elements and to the display for controlling an end-use device (34). The controller monitors the array of spaced sensor elements so as to determine a user desired command based on user touches to the array of spaced sensor elements. The controller (30) controls the display (22) and the end- use device (34) commensurate with the determined user desired command.
Abstract:
An input rod for connecting a vacuum brake booster to a pedal linkage member, wherein the input rod includes a connecting portion adapted to be connected to the pedal linkage member. The input rod further including a hollow body portion formed from a stamped flat blank.