TY - JOUR
T1 - Design of multi-range hydro-mechanical transmission using modular method
AU - Liu, Fangxu
AU - Wu, Wei
AU - Hu, Jibin
AU - Yuan, Shihua
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/7/1
Y1 - 2019/7/1
N2 - This paper introduces a kind of multi-range Hydro-mechanical transmission (HMT) based on dual stage input coupled layout. To extend the gear ratio, a new design method is presented in this research. A two phase (positive and negative) power split mechanism is designed based on the hydrostatic circuit. It can realize the continuous speed regulation in a complete motor speed cycle. Continuous speed regulation is carried out to be independent with the characteristic parameters of planetary in this mechanism. On the basis of it, the speed range of HMT can be extended very well. Further, the speed, power flow and normalized efficiency of the PS mechanism is analyzed in detail. Two kinds of power flows are validated to live in every hydro-mechanical range. A multi-range HMT is proposed and matched with a heavy duty vehicle. To obtain the performance of the HMT, a simulation model will be built in the AMESim and a corresponding test bench will be run to verify the characteristics. The proposed HMT presents a mean efficiency about 83% in a wide speed range.
AB - This paper introduces a kind of multi-range Hydro-mechanical transmission (HMT) based on dual stage input coupled layout. To extend the gear ratio, a new design method is presented in this research. A two phase (positive and negative) power split mechanism is designed based on the hydrostatic circuit. It can realize the continuous speed regulation in a complete motor speed cycle. Continuous speed regulation is carried out to be independent with the characteristic parameters of planetary in this mechanism. On the basis of it, the speed range of HMT can be extended very well. Further, the speed, power flow and normalized efficiency of the PS mechanism is analyzed in detail. Two kinds of power flows are validated to live in every hydro-mechanical range. A multi-range HMT is proposed and matched with a heavy duty vehicle. To obtain the performance of the HMT, a simulation model will be built in the AMESim and a corresponding test bench will be run to verify the characteristics. The proposed HMT presents a mean efficiency about 83% in a wide speed range.
KW - Gear ratio extension
KW - Hydro-mechanical transmission
KW - Planetary gear set
KW - Power flow
KW - Power split mechanism
UR - http://www.scopus.com/inward/record.url?scp=85061349205&partnerID=8YFLogxK
U2 - 10.1016/j.ymssp.2019.01.061
DO - 10.1016/j.ymssp.2019.01.061
M3 - Article
AN - SCOPUS:85061349205
SN - 0888-3270
VL - 126
SP - 1
EP - 20
JO - Mechanical Systems and Signal Processing
JF - Mechanical Systems and Signal Processing
ER -