Replying to the low overall technical level of domestically loader

such as low transmission efficiency

bad work stability

high labor intensity and so on

the transmission structure and manipulation control method and technology of hydraulic transmission was reviewed.The future manipulation control method comes up after analyzing the work feature of loader and requirements of hydraulic transmission.The semi-automatic transmission and KD technique is applied to reduce the driver’s shifting frequency;electro-proportional pressure modulation realizes the timing-sequence and smooth breakaway and connection control of clutch

in order to increase the whole system’s reliability and the riding comfort.With the development of the cooperative control of the subsystems

manipulation control technique will arrive at a higher level.