Vehicle brake system with front axle overboost
AssigneeZF Active Safety US Inc.
InventorBlaise Ganzel
Life of this patent
Estimating the term…
Abstract
A brake system having a wheel brake and being 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 the 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 the normal braking mode. A second source of pressurized fluid generates brake actuating pressure for actuating the wheel brake under the manual push-through mode.
Claims14
A brake system having a wheel brake and being operable under a non-failure normal braking mode and a manual push-through mode, the system comprising:
- 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 disposed in a first module and configured to provide fluid pressure for actuating the wheel brake under a normal braking mode;
- a second source of pressurized fluid disposed in a second module and configured to generate pressure for actuating the wheel brake under the manual push-through mode, the second source of pressurized fluid including a pump and a volume intensifier disposed between the pump and the wheel brake;
- wherein the volume intensifier is in direct fluid communication with the wheel brake and defines a stepped bore and a stepped piston to enable an enhanced pressure application at the wheel brake under manual push through mode;
- and
- wherein the master cylinder, the second source of pressurized fluid, the volume intensifier and the wheel brake are arranged in series.
Dependencies are inferred from the claim text.