Abstract: A service identifying and processing method using a wireless terminal message according to an exemplary embodiment of the present invention includes (a) receiving a wireless terminal message by a first entity which is a mobile device; and (b) expressing, by a first agent which is an information processing application program installed on the first entity, entity information of second entity based on the wireless terminal message and service confirmation information related to service provided by the second entity, through an application screen by the first agent.

Abstract: The present disclosure relates to a hydraulic vehicle height adjustment device including a storage tank part configured to store a fluid, a housing part connected to the storage tank part and configured to define a flow path portion through which the fluid moves, a gear pump part inserted into the housing part and having gears configured to press the fluid, an electric motor part mounted on the housing part and configured to operate the gear pump part when electric power is applied, an adjustment part connected to the housing part and configured to change a height of a vehicle body by using hydraulic pressure, and a pulsation reducing part inserted into the housing part, connected to the flow path portion, and configured to maintain a constant movement amount of the fluid.

Abstract: A vehicle height adjuster includes an actuator provided to form vertical linear displacement between a leaf spring and a suspension arm, a power source connected to the actuator and configured to provide power to drive the actuator, a vehicle height sensor provided to detect a change in a height of the suspension arm relative to a vehicle body, and a controller connected to the vehicle height sensor and the power source and configured to receive a signal from the vehicle height sensor and to control the power source to drive the actuator.

Abstract: A vehicle height adjuster includes an actuator provided to form vertical linear displacement between a leaf spring and a suspension arm, a power source connected to the actuator and configured to provide power to drive the actuator, a vehicle height sensor provided to detect a change in a height of the suspension arm relative to a vehicle body, and a controller connected to the vehicle height sensor and the power source and configured to receive a signal from the vehicle height sensor and to control the power source to drive the actuator.

Abstract: An apparatus for adjusting a vehicle height, the apparatus including a cylinder coupled to a suspension arm and having a pressure chamber therein, a hollow cylinder cap coupled to the cylinder, a first piston disposed to be movable upward or downward in the pressure chamber and having a lifting hole portion penetratively formed, a second piston disposed to be movable upward or downward in the lifting hole portion and having an upper portion to which a leaf spring seating part on which a leaf spring is seated is coupled, and a height adjustment unit connected to the cylinder and configured to selectively adjust a height of at least any one of the first piston and the second piston by changing a pressure of a working fluid in the pressure chamber.

Abstract: A vehicle height adjustment system includes: a cylinder housing part having an inner space configured to receive working fluid; a piston part positioned in the cylinder housing part, the piston part configured to move linearly in response to the working fluid transferred to the cylinder housing; a damper rod part positioned in the piston part; a protrusion part protruding outward from the damper rod part; and a guide part formed in the piston part facing the protrusion part, wherein the protrusion part is inserted into the guide part.

Abstract: A vehicle height adjustment system includes: a cylinder housing part having an inner space configured to receive working fluid; a piston part positioned in the cylinder housing part, the piston part configured to move linearly in response to the working fluid transferred to the cylinder housing; a damper rod part positioned in the piston part; a protrusion part protruding outward from the damper rod part; and a guide part formed in the piston part facing the protrusion part, wherein the protrusion part is inserted into the guide part.