Research and development of intelligent control system of automatic transmission for wheel loader

Based on research on the algorithm and control strategies of automatic transmission in wheel loader, the electronic control system adopted embedded technology for model A306 transmission is introduced in this paper. The embedded chip ATmega128 with RISC is used as CPU in the design. The hardware of the intelligent control system is satisfied with the requirements of gear shift. With the modular structure, the software has very good properties in independence, portability and expandability. In view of requirements of function expansion, interconnection and upgrade, the system is designed to be extended both in hardware and software. Installed in loader LG958 wheel loader, the test results of the intelligent control system is satisfied and worked stably and reliably, and is easy to handle.