Electronic control brake system having simulation function
View Patent ↗Disclosed is an electronic control brake system capable of ensuing pedal force upon regenerative braking or brake-by-wire control. The electronic control brake system having a simulation function includes a master cylinder for forming oil pressure corresponding to displacement of a brake pedal, an oil tank for providing oil to the master cylinder, a cut-off valve installed on a hydraulic supply pipe that connects an inlet of the master cylinder with an inlet valve of a hydraulic brake, an oil return pipe for connecting an outlet valve of the hydraulic brake with an inlet of the oil tank, and a simulation valve installed on a differential adjusting pipe, which connects the hydraulic supply pipe with the oil return pipe, to generate pedal force.
1. An electronic control brake system having a simulation function, the electronic control brake system comprising:
a master cylinder that forms oil pressure corresponding to displacement of a brake pedal;
an oil tank that provides oil to the master cylinder;
a cut-off valve installed on a hydraulic supply pipe that connects an inlet of the master cylinder with an inlet valve of a hydraulic brake;
an oil return pipe that connects an outlet valve of the hydraulic brake with an inlet of the oil tank;
a simulation valve installed on a differential adjusting pipe, which connects the hydraulic supply pipe with the oil return pipe, to generate pedal force; and
a hydraulic brake pressure adjusting valve located at an output side of a hydraulic pump configured to adjust hydraulic brake pressures of the inlet valve and the hydraulic pump.
2. The electronic control brake system of claim 1 , wherein an opening angle of the simulation valve is adjusted by controlling current applied to the simulation valve.
3. The electronic control brake system of claim 1 , wherein the simulation valve comprises a normal close valve.
4. The electronic control brake system of claim 1 , wherein the cut-off valve is closed when regenerative braking or brake-by-wire control is performed.
5. The electronic control brake system of claim 1 , wherein the cut-off valve is open in a backup mode.