Automatic engine idle speed control equipment, method and system, and engineering machinery

摘要: The invention relates to the field of engineering machinery, and discloses automatic engine idle speed control equipment, an method, system, machinery. equipment comprises a receiving device device. is used for signal indicating that operation handle positioned at neutral position, rotation speed. controlling enable be reduced first-stage idle-speed range under condition exceeds preset value, position no performed within first predetermined time period, then performing one or more following steps: second-stage range, second period; third-stage third period.