Stroke sensor apparatus for brake pedal and electronic brake system including thereof

A brake device, comprising:

• a hydraulic block;
• a rod assembly including a rod which moves linearly by operation of a brake pedal and having at least a part disposed in the hydraulic block;
• a magnet assembly including a magnet that moves with a displacement corresponding to a displacement of the rod;
• and
• a sensor sensing a magnetic field change of the magnet and generating an electrical signal corresponding to the displacement of the rod,
• wherein the hydraulic block includes:
• a rod chamber into which the rod assembly is inserted;
• and
• a magnet chamber disposed adjacent to the rod chamber and into which the magnet assembly is inserted,
• wherein a central axis of the magnet chamber is eccentrically disposed toward one side surface of the hydraulic block with respect to a central axis of the rod chamber.

A hydraulic block in which a plurality of fluid passages for supplying brake oil and a valve for controlling a flow of the brake oil are provided, wherein the hydraulic block includes:

• a rod chamber into which a rod assembly including a rod which moves linearly by operation of a brake pedal is inserted;
• a magnet chamber disposed adjacent to the rod chamber and into which a magnet assembly including a magnet that moves with a displacement corresponding to a displacement of the rod is inserted;
• and
• a sensor seating portion in which a sensor sensing a magnetic field change of the magnet and generating an electrical signal corresponding to the displacement of the rod is disposed,
• wherein a central axis of the magnet chamber is eccentrically disposed toward one side surface of the hydraulic block with respect to a central axis of the rod chamber.