MANDO CORPORATION

Disclosed herein an electric parking brake (EPB) system including a motor actuator operated by an electric motor includes a motor driving circuit configured to drive the electric motor; a current sensor detecting a current flowing through the electric motor; a voltage sensor detecting a voltage input to the electric motor; and a controller configured to determine a total energy consumption based on the current and voltage of the electric motor during a parking operation, determine whether a target current of a parking operation mode needs to be changed in response to the determined total energy consumption, in response to determining that the target current needs to be changed, change the target current based on at least one of a period of use and the number of times of operation of the EPB system, and control the electric motor in response to the changed target current.

Disclosed herein an apparatus for detecting a steering angle. In accordance with an aspect of the present disclosure, an apparatus for detecting a steering angle includes a pinion shaft coupled to a rack housing in which a rack bar is installed, the pinion shaft on which a pinion gear meshing with a rack gear is formed; a magnet disposed at one end of the pinion shaft and configured to rotate together with the pinion shaft; a printed circuit board (PCB) disposed at a predetermined distance from the magnet and including a magnetic sensor for detecting a rotation angle of a steering wheel connected to the pinion shaft; and a connector connected to the PCB to transmit a detected value measured by the magnetic sensor to an electronic control unit (ECU).

A brake system comprises a reservoir; a brake pedal; a master cylinder including a first master chamber, a second master chamber, a first master piston, and a second master piston; a first hydraulic circuit including at least one first hydraulic wheel brake; a second hydraulic circuit including at least one second hydraulic wheel brake; and a hydraulic pressure supplier including an actuator for pressurizing the first hydraulic circuit and the second hydraulic circuit depending on an operation of the brake pedal in a normal operating mode. The master cylinder further comprises a locking chamber and an elastic pedal feel element arranged in the first master chamber to be in contact with the first master piston and the second master piston for generating a pedal force when the brake pedal is operated while the second master piston is locked in the normal operating mode.

A steering column for a vehicle is disclosed. An aspect of the present invention may provide a steering column for a vehicle, the steering column comprising: an inner tube having a steering shaft inserted and coupled therein; an outer tube coupled to an outer circumferential surface of the inner tube and having a first hole formed to be recessed in the axial direction on outer surface thereof; a housing coupled to an outer circumferential surface of the outer tube and having a second hole formed to be recessed in the shaft direction at a position corresponding to the first hole on an outer surface thereof; and a driving unit connected to the inner tube and the outer tube to allow the inner tube and the outer tube to be moved forward and backward in the shaft direction, wherein the driving unit includes a block part including a first block accommodated in the first hole and the second hole while being coupled to the outer tube, a moving part coupled to the first block and the second block, and a driving part connected to the moving part and transferring driving force to allow the block part to be moved forward and backward.

An electric parking brake system according to one embodiment comprises: a first electric parking brake provided at a front wheel of a vehicle so as to generate a first clamping force; a second electric parking brake provided at a rear wheel of the vehicle so as to generate a second clamping force; an inclination sensor for detecting the inclination degree of the vehicle; and a control unit for determining the total clamping force required for parking on the basis of the inclination degree of the vehicle and vehicle weight information, determining the electric parking brake, to be operated, from among the electric parking brakes according to the determined total clamping force, and operating the determined electric parking brake.

Disclosed herein a check valve structure and a method of assembling the same. The check valve structure disposed in a bore of a modulator block having an inflow passage and a discharge passage to control one-way flow of oil includes a filter member configured to be press-fitted into the bore to filter foreign substances contained in oil flowing in from the inflow passage; and a valve assembly configured to be press-fitted into the bore to allow oil passing through the filter member to flow in a direction of the discharge passage; wherein the bore includes a first bore and a second bore having a diameter larger than that of the first bore, and the filter member is press-fitted into the first bore communicating with the inflow passage and the valve assembly is press-fitted into the second bore communicating with the discharge passage.

The present disclosure provides a motor router comprising: an annular body having a first coil guide; and a guide part formed to protrude from the body, and having a second coil guide to which the first coil guide is connected, and thus the present invention reduces the number of parts and has a simplified configuration, thereby providing an advantageous effect of reducing manufacturing processes and manufacturing costs.

The present disclosure relates to a vibration control device and a frequency-sensitive shock absorber having the same. A vibration control device includes a sub-piston rod coupled to an end of a piston rod, a pilot valve unit penetrated by and coupled to the sub-piston rod, in which pressure is formed by a fluid introduced through the sub-piston rod, and a fixing member located in a lower portion of the pilot valve unit and fastened to the sub-piston rod to fix the pilot valve unit, wherein the pilot valve unit comprises a free-piston provided to reciprocate in a vertical direction according to a change in the pressure formed by the fluid.

A vehicle steering system comprises: an input shaft rotatable in response to an input for moving vehicle wheels; a motor generating torque to be supplied to an output shaft through a belt assembly; a gear assembly; a rotary-linear conversion mechanism, and a sector gear; and the rotary-linear conversion mechanism combining rotary motion of the input shaft and the torque transferred from the motor. The torque generated by the motor can be transferred to the output shaft through the belt assembly, the gear assembly, the rotary-linear conversion mechanism, and the sector gear, thereby improving mechanical efficiency, reducing back-drive torque, and providing a multi-stage reduction mechanism to generate required pitman torque from the motor. The combined use of the belt assembly, the gear assembly, the rotary-linear conversion mechanism, and the sector gear enables to the motor to generate required steering torque, while meeting system back-drive performance requirements and current draw power requirements.

The present disclosure relates to a method and an apparatus for controlling a steering system, and more particularly, to a method and an apparatus for adjusting an operation mode of a steering system according to the degree by which a steering wheel is stowed or the degree by which the steering wheel is folded.