摘要:
Disclosed are: a device for controlling an engine and a hydraulic pump of construction equipment, capable of increasing fuel efficiency by controlling an engine speed and a hydraulic pump discharge flow rate according to the load of a work device; and a control method therefor. The device for controlling the engine and a hydraulic pump of construction equipment, according to the present invention, comprises: a fuel efficiency selection mode means; an engine RPM control means; a hydraulic pump control means; a work device operation sensing means; and a controller having a first control mode such that in the case of selecting the fuel saving mode, the engine RPM is outputted at the RPM lower than that of the general mode while a swash plate swivel angle of the hydraulic pump is increased corresponding to the operation amount of the operation lever, and in the case of the swash plate swivel angle of the hydraulic pump reaching the maximum angle, the engine RPM is increased so as to discharge the flow rate corresponding to the operation amount of the operation lever.
摘要:
Disclosed is a system for controlling a hydraulic pump in a construction machine which can reduce the discharge flow of the hydraulic pump in proportion to the load pressure of the hydraulic pump to enhance operability by the driver. The present invention provides the system for controlling the hydraulic pump in the construction machine, which is characterized by detecting the discharge pressure of the hydraulic pump and the operation activity of an operation lever, and comparing the detected discharge pressure of the hydraulic pump and a predetermined pressure value, and when the detected discharge pressure exceeds the predetermined pressure value, the maximum dischargeable flow of the hydraulic pump is reduced in proportion to the difference between the detected pressure and the predetermined pressure value.
摘要:
Disclosed are an exposure method and a method of manufacturing a mask and a semiconductor device using the same, which minimize time taken by mask data preparation (MDP) to optimize a total exposure process and enhance a quality of a pattern by using an inverse solution concept, based on a multi-beam mask writer. The exposure method includes receiving mask tape output (MTO) design data obtained through optical proximity correction (OPC), preparing mask data, including a job deck, for the MTO design data without a data format conversion, performing complex correction, including proximity effect correction (PEC) of an error caused by an e-beam proximity effect and mask process correction (MPC) of an error caused by an exposure process, on the mask data, generating pixel data, based on data for which the complex correction is performed, and performing e-beam writing on a substrate for a mask, based on the pixel data.
摘要:
A method for controlling a hydraulic system for a construction machine is disclosed, which can minimize a loss of pressure through expansion of an open area of a confluence spool in the case of singly driving a working device such as a boom. The method for controlling a hydraulic system includes a first step of detecting pilot signals according to operations of operation levers for first and second working devices through first and second pressure sensing devices and transmitting the detected pilot signals to the controller; a second step of determining whether the operation is a single operation of the operation lever for the first working device; a third step of supplying secondary signal pressure by an electro-proportional value to the confluence spool to expand an open area of the confluence spool with respect to the same operation pressure of the operation lever for the first working device and discharging hydraulic fluid discharged from a second hydraulic pump in proportion to the operation amount of the operation lever for the first working device if the operation lever for the first working device is operated to exceed a determined section in the case of singly driving the first working device due to the single operation of the operation lever for the first working device; and a fourth step of supplying the secondary signal pressure by the electro-proportional value to the confluence spool in proportion to the operation amount of the operation lever for the first working device and dividedly supplying the hydraulic fluid discharged from the second hydraulic pump to the first and second working devices in the case of performing a combined driving of the first and second working devices due to simultaneous operations of the operation levers for the first and second working devices.
摘要:
Described herein are techniques related to motion and quality adaptive rolling intra (I) macro-block (MB) that is used to encode a particular image frame. In particular, the rolling I MB configuration may be based upon global motion direction, quantization parameter (QP) value, complexity based roll, and/or QP saturation based roll.
摘要:
A display apparatus and a displaying method of the same, the display apparatus including a content output unit which outputs at least one content; a display unit; a video processor which processes and outputs a list image of the contents to the display unit; and a controller which controls the video processor to change a display effect of the list image according to frequency of use of the contents.
摘要:
An organic light emitting diode (OLED) display includes a lower substrate having a display area displaying an image and a non-display area formed along an edge of the display area, the display area having a first thickness, at least a part of the non-display area having a second thickness that is greater than the first thickness; and a protection member disposed at the lower side of the lower substrate, the protection member being disposed in the display area of the lower substrate.
摘要:
A flow control system for a hydraulic pump of a construction machine that can variably control a discharge flow rate of the hydraulic pump in accordance with load pressure generated by a hydraulic actuator. According to the system, the discharge pressure of the hydraulic pump and the operation rate of the operation lever for the hydraulic actuators is detected, and standard load pressures of the respective hydraulic actuators are set. If the discharge pressure of the hydraulic pump is higher than preset load pressures of the hydraulic actuators, the discharge flow rate of the hydraulic pump is reduced in proportion to the operation rate in accordance with degrees of loads generated by the hydraulic actuators. If the discharge pressure of the hydraulic pump is lower than the standard load pressures of the hydraulic actuators, the discharge flow rate of the hydraulic pump is controlled in proportion to the operation rate.
摘要:
A connector for a Low Profile (LP) fuse which has an increased fixing force, so as to prevent a secured LP fuse from being separated by external forces, such as vibration of a vehicle, etc. The connector for a Low Profile (LP) fuse includes a body, a rear member, and a pair of supporting arms. The body is adapted for insertion into a body receiving passageway of a fuse box. The body includes a lower end electrically connected to an electric wire. The rear member extends from the body into the body receiving passageway, while the pair of supporting members are bent from opposite sides of the rear member. The pair of supporting members extend parallel to each other.
摘要:
Methods, systems and computer program products that may improve the efficiency of the video encoding process. Mode decision processing and bit stream packing may be performed in parallel for various frames in a sequence. This reduces the amount of idle time for both the mode decision processing logic and the bit stream packing logic, improving the overall efficiency of the video encoder.