Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Walking safety control method and system for crawler excavator and excavator
The invention discloses a walking safety control method and system for a crawler excavator and the excavator, and belongs to the technical field of crawler excavators. The method comprises the steps that the theoretical opening amount of a walking valve element is calculated according to an electric control walking pedal signal and whole vehicle control logic; according to the theoretical opening amount of the walking valve element and the relation between the opening amount of the valve element and the secondary pressure for controlling the valve element, the theoretical secondary pressure output by the valve control electromagnetic valve is calculated; according to the theoretical secondary pressure output by a valve element of the valve control electromagnetic valve, the control current of the walking valve control electromagnetic valve is calculated; according to comparison between the theoretical secondary pressure output by the valve element and the control current of the walking valve control electromagnetic valve and the collected actual secondary pressure and actual current of the walking valve control electromagnetic valve, the pressure of oil ports in the two sides of a walking motor is detected, and walking safety control is conducted; according to the method, risks possibly existing in three links in the walking main valve control process are detected, active intervention is conducted when abnormity is found, and walking safety risks caused by various kinds of abnormity are effectively avoided.
本发明公开一种履带式挖掘机行走安全控制方法、系统及挖掘机，属于履带式挖掘机技术领域。其包括根据电控行走脚踏信号和整车控制逻辑，计算行走阀芯的理论开口量；根据行走阀芯的理论开口量、阀芯开口量与控制阀芯用二次压力之间关系，计算阀控电磁阀输出的理论二次压力；根据阀控电磁阀的阀芯输出理论二次压力，计算行走阀控电磁阀的控制电流；根据阀芯输出理论二次压力和行走阀控电磁阀的控制电流与采集的实际二次压力、行走阀控电磁阀的实际电流对比，并检测行走马达的两侧油口压力，进行行走安全控制；本发明将行走主阀控制过程中三个环节中可能存在的风险都进行检测、并在发现异常时主动干预，有效避免因多种异常导致的行走安全风险。
Walking safety control method and system for crawler excavator and excavator
The invention discloses a walking safety control method and system for a crawler excavator and the excavator, and belongs to the technical field of crawler excavators. The method comprises the steps that the theoretical opening amount of a walking valve element is calculated according to an electric control walking pedal signal and whole vehicle control logic; according to the theoretical opening amount of the walking valve element and the relation between the opening amount of the valve element and the secondary pressure for controlling the valve element, the theoretical secondary pressure output by the valve control electromagnetic valve is calculated; according to the theoretical secondary pressure output by a valve element of the valve control electromagnetic valve, the control current of the walking valve control electromagnetic valve is calculated; according to comparison between the theoretical secondary pressure output by the valve element and the control current of the walking valve control electromagnetic valve and the collected actual secondary pressure and actual current of the walking valve control electromagnetic valve, the pressure of oil ports in the two sides of a walking motor is detected, and walking safety control is conducted; according to the method, risks possibly existing in three links in the walking main valve control process are detected, active intervention is conducted when abnormity is found, and walking safety risks caused by various kinds of abnormity are effectively avoided.
本发明公开一种履带式挖掘机行走安全控制方法、系统及挖掘机，属于履带式挖掘机技术领域。其包括根据电控行走脚踏信号和整车控制逻辑，计算行走阀芯的理论开口量；根据行走阀芯的理论开口量、阀芯开口量与控制阀芯用二次压力之间关系，计算阀控电磁阀输出的理论二次压力；根据阀控电磁阀的阀芯输出理论二次压力，计算行走阀控电磁阀的控制电流；根据阀芯输出理论二次压力和行走阀控电磁阀的控制电流与采集的实际二次压力、行走阀控电磁阀的实际电流对比，并检测行走马达的两侧油口压力，进行行走安全控制；本发明将行走主阀控制过程中三个环节中可能存在的风险都进行检测、并在发现异常时主动干预，有效避免因多种异常导致的行走安全风险。
Walking safety control method and system for crawler excavator and excavator
一种履带式挖掘机行走安全控制方法、系统及挖掘机
WANG XUTONG (Autor:in) / WANG HAIYANG (Autor:in) / BIAN QINGRONG (Autor:in) / LI CHUANGCHUANG (Autor:in) / DAI LIUWEI (Autor:in) / ZHAO QIUGE (Autor:in) / LI MENGYUAN (Autor:in)
22.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02F
Baggern
,
DREDGING