Electronic hydraulic brake devices

Abstract

A electronic hydraulic brake device includes a storage part that includes a first storage chamber and a second storage chamber and stores braking fluid, a backup part that includes a first backup chamber and a second backup chamber, is engaged to a pedal and is pressurized by the pedal, a main brake part that includes a first brake chamber and a second brake chamber, is engaged to a motor and is driven by the motor to provide the braking fluid, a wheel cylinder part that provides braking force by the supplied braking fluid, and a line part that connects the storage part, the backup part, the main brake part, and the wheel cylinder part and guides the braking fluid, and in an emergency braking situation, the braking fluid of the backup part pressurized by the pedal is supplied to the wheel cylinder part before the braking fluid is pressurized by the main brake part.

Dependencies are inferred from the claim text.