Abstract: Provided is a method of manufacturing a zinc-plated steel sheet. The method includes: coating a metal on the steel sheet on a steel sheet; annealing the metal coated steel sheet; and zinc plating the annealed steel sheet by dipping in a molten zinc plating bath. Further provided is a method of manufacturing a hot-press part including: coating a metal on the steel sheet on a steel sheet; annealing the metal coated steel sheet; zinc plating the annealed steel sheet by dipping in a molten zinc plating bath; heating the zinc-plated steel sheet; and press forming the heated steel sheet.

Abstract: An apparatus and a method for controlling a vehicle steering system, which are capable of improving a sense of unity between driver's driving input and vehicle motion and the stability of the vehicle by estimating a side slip angle and performing return control, may include an assist torque determination module for determining assist torque for steering assist, a return control module for determining steering return torque for returning the steering wheel to a neutral position, a side slip angle estimation module for estimating a side slip angle, a side slip control module for determining a return control gain value in a response to the estimated side slip angle, a correction unit of correcting the determined steering return torque in a response to the return control gain value, and a torque compensation unit of determining final assist torque by compensating the determined assist torque with the corrected steering return torque.

Abstract: An automobile brake device, the device comprising: a brake disc; a brake pedal; a magnetic force generating unit for generating a magnetic force corresponding to amount of manipulation at the brake pedal; and magneto-rheological fluid where intrinsic viscosity of the fluid is changed by the magnetic force to generate shearing force and to apply braking force to the brake disc, such that manipulating power of brake pedal by a driver is immediately transmitted to wheels in response to electric signal, using MR fluid, to enable to embody a rapid response speed while dispensing with hydraulic oil to make brake booster, hydraulic pipe route and cylinder of caliper unnecessary thereto, thereby realizing swift generation of braking power with only simple combination of parts, whereby there is no fear raised about generation of vapor lock phenomenon at hydraulic brake device, and because of no brake pad used, there is no fear either about environmental pollution resulted from fade phenomenon or dust.