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Shift Quality Analysis of Heavy-Duty Vehicle Automatic Transmission Shift Control Valve
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The structural concepts of Switch solenoid valve and proportional solenoid valve were proposed for the
hydraulic shift control system of some hydrodynamic mechanical automatic transmissions. Shift oil pressure of stationary
combination valve and proportional solenoid valve was modeled, simulated, contrasted and analyzed by dynamic
simulation software in order to study the shift quality of heavy-duty vehicle automatic transmission. The results show that
proportional solenoid valve is better to control the characteristic of shift oil pressure, reduce shift shock, improve shift
quality and comfort than stationary combination valve. The correctness and validity of the model were verified through
bench test, which reflected the dynamic characteristics of shift oil pressure of hydrodynamic mechanical automatic
transmission. The results can be used to match the performance and predict heavy-duty vehicle shifting process, and to
further lay the foundation for the enhancement of shift performance of the system.
Bentham Science Publishers Ltd.
Title: Shift Quality Analysis of Heavy-Duty Vehicle Automatic Transmission
Shift Control Valve
Description:
The structural concepts of Switch solenoid valve and proportional solenoid valve were proposed for the
hydraulic shift control system of some hydrodynamic mechanical automatic transmissions.
Shift oil pressure of stationary
combination valve and proportional solenoid valve was modeled, simulated, contrasted and analyzed by dynamic
simulation software in order to study the shift quality of heavy-duty vehicle automatic transmission.
The results show that
proportional solenoid valve is better to control the characteristic of shift oil pressure, reduce shift shock, improve shift
quality and comfort than stationary combination valve.
The correctness and validity of the model were verified through
bench test, which reflected the dynamic characteristics of shift oil pressure of hydrodynamic mechanical automatic
transmission.
The results can be used to match the performance and predict heavy-duty vehicle shifting process, and to
further lay the foundation for the enhancement of shift performance of the system.
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