摘要:
An integrated control apparatus for an engine system including an engine, a hydraulic pump driven by the engine, a control valve for controlling hydraulic oil discharged from the pump and a hydraulic actuator operated by the oil from the control valve. The apparatus includes a power mode determiner calculating an auto mode change index as a function of a first state value representing a work load of the pump and a second state value representing a work speed required by an operator to determine whether a current power mode of the pump is to be changed, a pump power determiner determining a power mode of the pump based on a result of whether the current power mode of the pump is to be changed, and an engine speed determiner determining an engine speed based on the result of whether the current power mode of the pump is to be changed.
摘要:
The present disclosure relates to a cylinder having an inner wall formed with fine uneven patterns to improve durability. The fine uneven patterns according to the present disclosure increases oil film pressure between a piston ring and an inner wall of the cylinder, and smoothly supplies engine oil to where the engine oil is insufficient, thereby reducing abrasion between the piston ring and the inner wall of the cylinder.
摘要:
The present disclosure relates to a method, a device, and a system for controlling a hydraulic pump of a construction machine, the system comprising: an engine; an engine control unit configured to control the engine by using engine limit torque information and current engine torque information of the engine; a hydraulic pump operated by power supplied from the engine; at least one actuator driven by a hydraulic pressure discharged from the hydraulic pump; and a hydraulic pump control device configured to control a limited swash plate angle of the hydraulic pump by using a torque of the hydraulic pump and the engine limit torque information received from the engine control unit.
摘要:
The present disclosure relates to a double-structure bush usable in a joint portion which operates in low speed and high load, and to a bearing assembly comprising same.
摘要:
The present disclosure relates to an operational program of a numerical control machine, which includes: a main menu in which main menus including a tool management menu and a tool setting menu are arranged; a detail information in which the list of tools mounted on a machine tool is outputted, when the tool management menu is selected from the main menu; a preview that displaying the machining state of a material on the basis of the information inputted through the main menu; and a function selection in which function selection icons for selecting and adding new tools are arranged, in which when the tool management tool is selected from the main menu, “register new tool item” is shown up on the function selection icons, and the function selection icon for selecting a new tool is selected, a tool database including characters, symbols, and images for tool lists is outputted in the detail information in accordance with a machining method so that a new tool can be registered.
摘要:
The present disclosure relates to a boom driving system for a hybrid excavator and a control method therefor, and more particularly, to a boom driving system for a hybrid excavator, which drives a hydraulic pump motor so as to move a boom upward and downward, and collects regenerative power of the boom using an electric motor so as to improve fuel efficiency, and a control method for the boom driving system. Provided in exemplary embodiments of the present disclosure is a boom driving system for a hybrid excavator and a control method therefor, which may allow an electric motor generator to normally produce electricity by allowing retraction speed and force of the boom actuator to be controlled to a target speed when a boom is moved downward.
摘要:
An aspect of the present disclosure has been made in an effort to provide an apparatus and a method of automatically controlling a transmission, capable of increasing work efficiency by removing a time gap between a starting time point when an operation such as excavation of a wheel loader starts and a transmission time point when the kickdown is performed. In addition, an aspect of the present disclosure has been made in an effort to provide an apparatus and a method of automatically controlling a transmission, capable of performing an automatic kickdown transmission at the same time of the starting time point of operation, preferably before the operation is performed.
摘要:
The present disclosure relates to a method for controlling a hydraulic pump of a wheel loader, and more particularly, to a method for controlling a hydraulic pump in order to improve acceleration performance of the wheel loader in a situation in which an injection amount of fuel is limited during an acceleration process of the wheel loader in accordance with stricter regulations on exhaust gas.
摘要:
The present invention provides a tool path forming method in a milling processing system, the method including: (A) a shape offset step; (B) a virtual wall forming step; (C) an interference region forming and shape revising step; (D) a closed shape forming step; (E) a cutting surface forming step; (F) tool path forming steps; (G) an unprocessed region detecting step; and (H) an uncut region tool path forming step.
摘要:
An active regeneration control device for a diesel particulate filter (DPF) according to the present disclosure includes: an active regeneration determining unit judging an active regeneration time of the (DPF); an active regeneration signal generating unit generating an active regeneration signal according to the decision of the active regeneration determining unit; and an active regeneration inducing unit. The active regeneration inducing unit induces the active regeneration when the active regeneration is not performed after the active regeneration signal is generated.