Abstract: An electronic hydraulic brake device may include: a brake unit including a main brake unit configured to provide braking hydraulic pressure to a plurality of wheel cylinders through an operation of a motor, and an auxiliary brake unit connected to the main brake unit so as to be filled with high braking hydraulic pressure, and configured to provide braking hydraulic pressure to the plurality of wheel cylinders when an operation error of the main brake unit occurs; a first control unit configured to control the operation of the brake unit, and configured to control the auxiliary brake unit to operate when an operation error of the main brake unit occurs; and a second control unit configured to assist a part of the control of the main brake unit controlled by the first control unit and the control of the auxiliary brake unit.

Abstract: An electronic hydraulic brake device may include: a brake unit including a main brake unit configured to provide braking hydraulic pressure to a plurality of wheel cylinders through an operation of a motor, and an auxiliary brake unit connected to the main brake unit so as to be filled with high braking hydraulic pressure, and configured to provide braking hydraulic pressure to the plurality of wheel cylinders when an operation error of the main brake unit occurs; a first control unit configured to control the operation of the brake unit, and configured to control the auxiliary brake unit to operate when an operation error of the main brake unit occurs; and a second control unit configured to assist a part of the control of the main brake unit controlled by the first control unit and the control of the auxiliary brake unit.

Abstract: The present invention relates to a sensor module comprising a relative displacement sensor and an acceleration sensor, and a damper equipped with the same. The damper comprises a cylinder which is formed with a hollow portion therein; a piston rod which is inserted through an upper portion of the cylinder; a piston valve which is connected with an end of the piston rod so as to reciprocate in the cylinder, and which is formed with a fluid passing hole formed to be passed through the piston valve up and down; a rod guide which air-tightly closes an upper end of the cylinder and has a though-hole in which the piston rod is inserted; and a sensor module which is provided with an acceleration sensor for detecting an acceleration at least in a z-axial direction and a displacement sensor for detecting a displacement of the piston rod and which is coupled with the rod guide.

Abstract: The present invention relates to a sensor module for detecting a relative displacement of an object having a groove pattern with alternately formed projection and depression, which comprises a magnet for generating a magnetic field; a giant magneto resistance (GMR) sensor installed between the magnet and the object to detect a variation in the magnetic field and output an electric signal; a signal processing part for processing the output signal from the GMR sensor to output a square wave; and a housing for supporting the magnet, the GMR sensor and the signal processing part, and a method of detecting a moving direction using the same.

Abstract: The present invention relates to a sensor module comprising a relative displacement sensor and an acceleration sensor, and a damper equipped with the same. The damper comprises a cylinder which is formed with a hollow portion therein; a piston rod which is inserted through an upper portion of the cylinder; a piston valve which is connected with an end of the piston rod so as to reciprocate in the cylinder, and which is formed with a fluid passing hole formed to be passed through the piston valve up and down; a rod guide which air-tightly closes an upper end of the cylinder and has a though-hole in which the piston rod is inserted; and a sensor module which is provided with an acceleration sensor for detecting an acceleration at least in a z-axial direction and a displacement sensor for detecting a displacement of the piston rod and which is coupled with the rod guide.

Abstract: The present invention relates to a sensor module for detecting a relative displacement of an object having a groove pattern with alternately formed projection and depression, which comprises a magnet for generating a magnetic field; a giant magneto resistance (GMR) sensor installed between the magnet and the object to detect a variation in the magnetic field and output an electric signal; a signal processing part for processing the output signal from the GMR sensor to output a square wave; and a housing for supporting the magnet the GMR sensor and the signal processing part, and a method of detecting a moving direction using the same. It is possible to detect in non contact manner and stably a moving direction, a moving distance, a moving speed and the like using the sensor module of the present invention.