초록 ▼

A method and device for brake application provides braking pressure augmentation when preferred. A power booster and master cylinder generate a braking pressure in relation to an operator's input on the brake pedal. An optional brake parameter sensor is used to determine when the power booster reach

A method and device for brake application provides braking pressure augmentation when preferred. A power booster and master cylinder generate a braking pressure in relation to an operator's input on the brake pedal. An optional brake parameter sensor is used to determine when the power booster reaches a run-out condition. At least one control valve and pump are used to apply braking pressure in response to additional increases in brake pedal application by the operator, after the power booster reaches a run-out condition. The pump and control valve are optionally used to generate braking pressure independent of brake pedal inputs.

대표청구항 ▼

[ What is claimed is:] [1.] A device for a brake application comprising:a master cylinder;a power booster engaging the master cylinder;a brake pedal for operatively interacting with the power booster through a push-rod;a sensor operative to generate a power booster run-out indicative signal;a fluid

[ What is claimed is:] [1.] A device for a brake application comprising:a master cylinder;a power booster engaging the master cylinder;a brake pedal for operatively interacting with the power booster through a push-rod;a sensor operative to generate a power booster run-out indicative signal;a fluid braking circuit connected to the master cylinder;a wheel brake connected to the fluid braking circuit;a pump in the fluid braking circuit;means responsive to generation of the power booster run-out indicative signal by the sensor and the application of further force to the brake pedal for operating the pump so as to generate an augmentation pressure and apply the augmentation pressure to the wheel brake; andan isolation valve, including a check valve, positioned in the fluid braking circuit between the master cylinder and the wheel brake wherein the isolation valve is closed when the sensor generates the booster run-out indicative signal.