Tire force and moment properties are the function of rolling distance and always show non-steady state behaviors with varying slip angle and vertical load. In this paper, considering flexible carcass, a tire side slip...
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Tire force and moment properties are the function of rolling distance and always show non-steady state behaviors with varying slip angle and vertical load. In this paper, considering flexible carcass, a tire side slip rolling model is presented and some simulations are demonstrated. Such model can serve as benchmark for developing pragmatic semi-physical model and analysis tool for understanding tire stress phenomena in contact patch.
UniTire steady state model is a unified non-linear tire model for vehicle dynamic simulation and control under complex wheel motion inputs involving large lateral slip, longitudinal slip, turn-slip and camber. Firstly...
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UniTire steady state model is a unified non-linear tire model for vehicle dynamic simulation and control under complex wheel motion inputs involving large lateral slip, longitudinal slip, turn-slip and camber. Firstly, brief history of UniTire development was introduced, and then more detailed features of UniTire steady state model were given, thirdly, a tool aiming at parameterization of UniTire was also demonstrated, finally, application scope of UniTire and available interfaces to MBS software were presented.
According to the unique characteristics of hub motor, this paper is about designing a stable and precise control strategy to realize ABS regulation of EVs. Also, in wheel electric motor torque is the only source to sl...
According to the unique characteristics of hub motor, this paper is about designing a stable and precise control strategy to realize ABS regulation of EVs. Also, in wheel electric motor torque is the only source to slow down the EV, which is known as the electric brake. This paper involves the AMESim co-simulating with Matlab/Simulink to develop and test the ABS control strategy, which provides better handling to hub motor directly driving EVs.
This paper models and studies the dynamic characteristics of slewing system of 80T truck crane. Analyzing the composition and working principle of the hydraulic system, and building the model of slewing system based o...
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ISBN:
(纸本)9780769542966
This paper models and studies the dynamic characteristics of slewing system of 80T truck crane. Analyzing the composition and working principle of the hydraulic system, and building the model of slewing system based on AMESim, then testing the model. And the simulation analysis results indicate the factors which affect the dynamic characteristics of the system and propose the measures to improve them. The results show that adopting the bypass circuit makes the shock pressure reduced 18 percent when the system operates;besides, changing the system's control strategy and installing one-way throttle enhance the stability of braking obviously.
In this paper, we consider the vehicle online path following under structure environment as object of our researching. By using the rolling method, a trajectory generation method based on flatness and a local path pla...
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In this paper, we consider the vehicle online path following under structure environment as object of our researching. By using the rolling method, a trajectory generation method based on flatness and a local path planning algorithm are proposed according to the characters of structure environment. In order to satisfy feasibility and safety, timevarying dynamics constraints are taken into account. The simulation results illustrate the effectiveness of our algorithm.
This paper presents the parameter identification technology of heavy commercial vehicle rollover prediction. In this study, a nonlinear truck model has been established for the rollover threat prediction. In order to ...
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ISBN:
(纸本)0878492712
This paper presents the parameter identification technology of heavy commercial vehicle rollover prediction. In this study, a nonlinear truck model has been established for the rollover threat prediction. In order to achieve valid and representative truck model as close to the target real truck as possible, a set of key parameters are identified from experiment data collected from real truck ground test. At the last, the vehicle prediction model simulation results compared with the experimental results, it is shown that the prediction model can be accurately predicted the rollover dangerous state.
In this paper, we consider the vehicle online motion planning for the avoidance of emergency situations under structured environment as the object of our researching. In the framework of MPC, a motion planning method ...
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Intelligent airbag system can control its deploy time and force according to different types of occupant in different sitting position. The accurate detection of vehicle occupant is the precondition and plays an impor...
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Empirical tire models provide a reasonably good representation of experimental data for tire lateral force and aligning moment properties. However, empirical models would become quite complicated while increasing inpu...
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A new wheel model was established to simulate stand-still and starting condition which can't be accurately described by previous tire model. In this new model, the wheel is simplified into two parts: wheel-rim and...
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