ZL50装载机自动换挡电子控制单元的开发研究

Development of electronic control unit (ECU) for ZL50 loader automatic gear shift system

开发了ZL50装载机液力传动变速箱自动换挡操纵系统及其电子控制单元(ECU)。针对装载机作业过程中换挡操纵的复杂性,该系统采用了人机协同配合的多模式换挡控制方式;完成了控制软件设计、硬件电路及可靠性设计,并对研制的自动换挡操纵系统进行了台架试验和环境试验,验证了系统功能的实用性和工作可靠性。试验结果表明:自动换挡操纵系统可按驾驶员选择的控制方式工作,实现自动选挡功能及换挡过程的平稳性控制。

Authors research on developing of automatic gear shifting control system and its electronic control unit. Because of complexity of loader's gear shifting, a multi-mode control method is adopted which can coordinate operator and computer control functions. System's software program,hardware circuit and its reliability design are carried out.ECU's function and operation reliability are proved during bench and environmental tests.It shows that the system achieves gear-selecting and smooth gear-shifting control functions under different working modes.