Pump control main drive tie rod auxiliary valve control electro-hydraulic steering system and control method

• Main Authors: LI HANJIN, LI YUZHENG, ZHANG XIAOLONG, DU HENG, ZHANG ZHIZHONG, HUANG HUI, SEO JUN, LI SU
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2023
• Subjects: LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MOTOR VEHICLES; PERFORMING OPERATIONS; TRAILERS; TRANSPORTING

The invention provides a pump control main drive tie rod auxiliary valve control electro-hydraulic steering system and a control method. The pump control main drive tie rod auxiliary valve control electro-hydraulic steering system comprises a main drive system of a variable-speed pump drive double-steering power-assisted cylinder, a tie rod auxiliary valve control system and an electronic control system. A main driving system of the variable-speed pump-driven double-steering power-assisted cylinder is a pump control system, a left wheel steering power-assisted cylinder and a right wheel steering power-assisted cylinder are controlled through a servo motor pump unit and a steering power-assisted cylinder valve group, and flow is divided to control a tie rod auxiliary valve control system; the tie rod auxiliary valve control system is a valve control system, controls a large-cavity tie rod cylinder and a small-cavity tie rod cylinder through a tie rod cylinder valve group and a locking device, and assists the m