Abstract: Provided is a suspension spring for a shock absorber using carbon fiber reinforced plastic. From a structure including a spring unit in which a plurality of bowl-shaped unit bodies are stacked between a first sheet and a second sheet along a length direction of a piston rod, the suspension spring for the shock absorber can achieve weight reduction and durability improvement while exhibiting the same performance as that of steel coil spring by using the carbon fiber reinforced plastic.

Abstract: A rack-driven power steering apparatus mitigates frictional force and noise produced due to iron powder generated by continuous frictions while balls are circulating in inner peripheral screw grooves and outer peripheral screw groove defined by a rack bar and a ball nut. The rack-driven power steering apparatus collects iron powder scattered between the rack bar and the ball nut in one place so that the iron powder can be easily removed. Therefore, the rack-driven power steering apparatus protects components, increases durability, and improves maintenance efficiency.

Abstract: Provided is a dust lip for a shock absorber, which is provided between a dust cover and a piston rod to prevent foreign substances from flowing into an oil sealing unit in twice and eliminate noise generated by mutual interference between a piston rod and a bumper rubber. The dust lip for the shock absorber includes: a piston rod; a base shell through which a part of the piston rod passes such that the piston rod is exposed to one side; a cap member covering one end of the base shell through which the piston rod passes; a bumper rubber attached to an outer periphery of the exposed portion of the piston rod; and a dust lip provided between the piston rod and the cap member to remove a gap between the piston rod and the cap member.

Abstract: Disclosed herein is a check valve of a brake system to enable easy processing and assembly through a simplified structure. The check valve for brake systems includes a valve sheet housing press-fitted to a step of a hydraulic block provided with an oil passage, the valve sheet housing including an upper part having an opening and a lower part having an open/close hole to form an oil channel in an inner part, a ball provided in the valve sheet housing to open or close the oil channel, and a spring to elastically support the ball, wherein the valve sheet housing is provided in the upper part thereof with a plurality of fixing protrusions that protrude in an inside diameter direction along a circumference of the opening to support the spring.

Abstract: In a hybrid power steering system, two steering assisters for supporting a steering force when the driver operates the steering wheel. The steering supporting force can be divisionally used according to the increase of speed and weight of a vehicle, thereby reducing the load applied to any of the steering assisters such that operating noise can be reduced and the endurance can be increased. Further, a motor of a lower power specification may be used even in the case of a truck or a bus that requires a relatively high steering force as compared to a passenger vehicle. Accordingly, production costs can be reduced and a sufficient steering supporting force can be obtained, thereby improving the driver's convenience, and enhancing fuel efficiency while increasing energy efficiency. Further, the steering can be safely maintained even when one of the steering assisters is not operating normally while the vehicle is being driven.

Abstract: Disclosed herein is a disc brake which may improve restoration of a piston which occurs when braking operation is terminated. The disc brake having a carrier and a caliper housing includes an adjuster installed inside the piston to maintain the pad plates at a distance from the disc, a pull-rod installed in the cylinder, a front portion thereof being screwed to the adjuster and a rear portion thereof being provided with a flange extending toward an inner circumferential surface of the cylinder, a support member coupled with a rear wall of the cylinder to support the pull-rod and seal an inside of the cylinder, a spring case adapted to have one end fixed to the support member and form a predetermined accommodating space, and an elastic member arranged in the accommodating space of the spring case to return the piston to an original position thereof.

Abstract: The present invention relates to radar and antenna technologies. More particularly, the present invention relates to an antenna apparatus and radar apparatus that have an antenna structure that enables a high antenna gain and a balanced beam pattern by preventing a distortion of a beam pattern caused by a coupling phenomenon between antenna arrays.

Abstract: Disclosed herein is a combining structure of a shock absorber including a stopper assembly adapted to surround opposite ends of a bypass passage formed in a piston rod of the shock absorber, with at least one gateway provided to promote smooth flow of a working fluid, and to keep a piston valve firmly pressed against the piston rod and fixed. The combining structure may ensure that the overall length of the shock absorber does not unnecessarily increase, while generating normal damping force without interference with flow of the working fluid.

Abstract: The present invention relates to a radar apparatus. More particularly, the present invention relates to a radar apparatus having a configuration which is reduced in the number of parts and size, and a method of assembling the same.

Abstract: A shock absorber is provided. The shock absorber includes: a piston rod; an inner passage having an inlet port at an outer periphery of the piston rod; and a stopper installed at the outer periphery of the piston rod. The stopper is disposed to surround the inlet port of the inner passage, and an outer passage extending from an upper portion of the stopper to the inlet port is formed between the stopper and the piston rod.

Abstract: Disclosed are a seal assembly and a power steering apparatus having the same. The seal assembly is configured to prevent the leakage of hydraulic oil in a cylinder tube, and when excessive reverse input is transmitted from vehicle wheels, to prevent the fracture of a sealing member.

Abstract: An electric power steering system includes: a torque sensor including a first rotor connected to an input shaft, a second rotor connected to an output shaft, a first angle element for measuring an absolute steering angle of the first rotor, and second and third angle elements for measuring relative steering angles of the first rotor; and an electronic control unit for determining a reference steering angle based on the absolute steering angle and the relative steering angles received from the torque sensor, tracing and accumulating first and second absolute steering angles rotated from the reference steering angle based on the relative steering angles received from the second and third angle elements, and averaging the first and second absolute steering angles to provide the calculated final absolute steering angle when the difference between the accumulated first and second steering angles is within the preset reference difference.

Abstract: An electromechanical brake includes a pair of pad plates provided with a friction pad to apply pressure to a disc, a carrier to support the pad plates, a caliper housing supported movably back and forth on the carrier to apply pressure to the pad plates; and a presser to apply pressure to the pad plates. The presser includes a pressing member to apply pressure to one of the pad plates, a driving motor to operate the pressing member, a gear assembly disposed between the driving motor and the pressing member to transfer rotational force of the driving motor to the pressing member. The gear assembly includes an input shaft connected to a motor, an external gear coupled to input shaft such that the external gear eccentrically rotates, and a stationary internal gear and a rotational internal gear meshed with the external gear such that the external gear revolves, while rotating. The rotational internal gear includes an output shaft in the center thereof and the output shaft is connected to the pressing member.

Abstract: The present invention relates to a radar technology, and in more particular, to a radar apparatus having an antenna arrangement capable of removing a non-detected region which may exist around a vehicle.

Abstract: Disclosed are a radar apparatus having a reduced size and a reduced number of components, and a method of assembling the radar apparatus.

Abstract: Disclosed are a pinion sensor assembly and an electric power steering apparatus having the same. According to the present invention, it is possible to substantially reduce the number of constitutional elements to be assembled when assembling a torque sensor and neighboring elements, to reduce an error in change of torque caused by accumulation of assembling errors of the constitutional elements, thereby preventing a malfunction, and to enhance assemblability.

Abstract: A power steering apparatus includes: a torque sensor for detecting a steering torque applied to a steering wheel and outputting a torque signal corresponding to the steering torque; a speed sensor for detecting a speed of a vehicle and outputting a speed signal corresponding to the speed of the vehicle; a humidity sensor for outputting a humidity signal corresponding to a humidity of an interior of the power steering apparatus; and an electronic control unit for receiving the humidity signal from the humidity sensor, and for, when a measured humidity is an reference value or higher, generating a motor current signal for supplying an assistant steering force smaller than an assistant force set in response to the torque signal and the speed signal.

Abstract: Disclosed herein are a decelerator in which a first deceleration unit of a planet gear type is provided inside a second deceleration unit of a cycloid type so as to apply eccentric rotation force to the second deceleration unit, and a motor brake with the same. The decelerator restricts an increase in the axial thickness of a motor and achieves an effectively increased deceleration ratio, and the motor brake equipped with the decelerator restricts an increase of the overall length thereof due to the decelerator, achieving enhanced space utility.

Abstract: A rack-driven auxiliary power steering apparatus prevents a ball nut and a nut pulley from idling due to a slip thereof and increases durability when the drive belt is operated by driving of a motor, and minimizes vibrations and noise transferred through the rack bar, the ball nut, and the nut pulley when the rack bar is slid while the nut pulley and the ball nut are rotating, thereby providing a comfortable steering feeling to the driver.

Abstract: Disclosed herein are a cord assembly for replacement of an outer beam and a carrier including the same which may provide an improved degree of freedom in design and prevent damage to the carrier. The cord assembly for replacement of an outer beam, which is fastened to a carrier at which a pair of pad plates is installed to be movable forward and backward with pads attached to inner surfaces of the pad plates to be squeezed against a disc rotating together with a wheel of a vehicle, includes at least one cord having a predetermined stiffness and formed by twisting at least two steel wires and fasteners fastened to both ends of the at least one cord to be installed at coupling portions protruding respectively from both ends of the carrier.