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The accurate information of vehicle states that could not be obtained directly by onboard sensors is virtual important for vehicle active safety systems. This paper presents the nonlinear full-order observer which is used to estimate the longitudinal velocity, lateral velocity and road grade estimation with autonomous driving. Firstly, this paper established a simplified vehicle dynamics model for...
The accurate information of tire-road forces and vehicle velocities that could not be obtained directly by onboard sensors is virtual important for vehicle active safety systems. In this manuscript, it focuses on modular scheme for vehicle tire-road forces and velocities estimation using sliding mode observer. The longitudinal tire-road force is estimated first. Then, the lateral tire-road force could...
Aimed at washer in planetary transmission, the wear problem of thrust washer and planet gear due to the force in axis direction was investigated. In order to reduce wear, hydrodynamic lubrication design was studied by way of machining rectangular groove in radial direction into one side of thrust washer. The purpose of hydrodynamic lubrication design is that the relative movement between planet gear...
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