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Article
Design and application of electric oil pump in automatic transmission for efficiency improvement and start–stop function
For the purpose of improving efficiency and realizing start–stop function, an electric oil pump (EOP) is integrated into an 8-speed automatic transmission (AT). A mathematical model is built to calculate the t...
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Article
Scheme optimization of AT shifting element based on genetic algorithm
In order to realize the computer aided design of AT shifting element schemes, a mathematical model of shifting element schemes which can be easily identified by computers was built. Taking the transmission rat...
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Article
Modeling unbalanced rotor system with continuous viscoelastic shaft by frequency-dependent shape function
A reduced-order dynamic model for an unbalanced rotor system is developed, taking the coupling between torsional and lateral vibrations into account. It is assumed that a shaft is regarded as a continuous visc...
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Article
Application of clutch to clutch gear shift technology for a new automatic transmission
For the purpose of engineering development for a new 8-step speed automatic transmission, a simplified dynamic model for this gearbox was established and key parameters which affected the shift quality were an...
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Article
Multi-domain modeling and simulation of proportional solenoid valve
A multi-domain nonlinear dynamic model of a proportional solenoid valve was presented. The electro-magnetic, mechanical and fluid subsystems of the valve were investigated, including their interactions. Govern...
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Article
Design and dynamic simulation of hydraulic system of a new automatic transmission
A new hydraulic system of a novel automatic transmission (AT) was designed. The dimension and structure of valves and cylinders were designed by theoretical calculation. The dynamic simulation model of hydraul...
