Control system and method for starting and stopping of excavators
A control system and control method technology, which is applied in earth movers/shovels, electric energy management, construction, etc., can solve the problem of large impact of excavators, and achieve the effect of reducing oil circuit impact
Active Publication Date: 2022-07-12
中联重科土方机械有限公司 +1
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[0005] The purpose of the embodiments of the present invention is to provide a control system for starting and stopping the excavator and a control method for starting and stopping the excavator, so as to at least solve the problem of excessive impact of the above-mentioned excavator when starting or braking
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[0048] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.
[0049] An embodiment of the present invention provides a control system for starting and stopping of excavators, the control system includes: a pressure sensor, a vehicle controller and a walking system; the pressure sensor is used to collect the hydraulic pressure of the walking operation in real time;
[0050] The vehicle controller is used to determine the pressure state at the current moment according to the walking operation hydraulic pressure, and obtain the current pressure change state according to the pressure state at the current moment and the pressure state at the previous moment at the current moment;
[0051] The vehicle controller is also used to obtain th...
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The invention provides a control system and a control method for starting and stopping of excavators, belonging to the field of construction machinery. The control system includes: a pressure sensor for collecting the hydraulic pressure of the walking operation in real time; a vehicle controller for determining the pressure state at the current moment according to the hydraulic pressure for the walking operation, and according to the pressure state at the current moment and the previous moment at the current moment The current pressure change state is obtained from the pressure state at a moment; the vehicle controller is also used to obtain a vehicle operation command, and when it is determined that the current vehicle operation command is a gear switching command, output the corresponding travel gear according to the current pressure change state position control signal and traveling oil pressure control signal; traveling system, used for performing gear control according to the traveling gear control signal, and performing corresponding traveling according to the traveling operation hydraulic pressure and the traveling hydraulic pressure control signal drive operation. The invention reduces the impact of the oil circuit caused by improper operation of the user.
Description
technical field [0001] The invention relates to the field of construction machinery, in particular to a control system for starting and stopping of excavators and a control method for starting and stopping of excavators. Background technique [0002] Excavators are widely used construction machinery. At present, crawler excavators generally use two-speed motors. The walking speed is manually switched through the display or rocker switch. The controller monitors the high and low speed commands to determine whether to drive the high and low speed switching solenoid valve. The output of the excavator switches the walking gear of the excavator. [0003] When the user selects a low-speed gear, the output of the high and low-speed solenoid valves for walking is prohibited, so that the walking motor works in the small displacement mode, and drives the excavator to walk in a low-speed gear; when the user selects a high-speed gear, the controller outputs the control voltage to drive ...
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IPC IPC(8): E02F9/20E02F9/22
CPCE02F9/20E02F9/22Y02T10/72
Inventor 高见厂吴元峰吴清本魏学平刘行行
Owner 中联重科土方机械有限公司