This paper discusses relationships and differences between a tire under braking and driving conditions, and the processes utilized to predict the tire's driving force characteristics. In the current paper, dynamic...
详细信息
A novel scheme to improve the dynamic characteristics of ship motion control system is proposed after investigating several advanced control algorithms. Problem of selecting the corrector loop in multi-object structur...
详细信息
ISBN:
(纸本)9781424480364
A novel scheme to improve the dynamic characteristics of ship motion control system is proposed after investigating several advanced control algorithms. Problem of selecting the corrector loop in multi-object structure is studied, which achieved the accuracy requirements of vessel course control on disturbed sea. An integrated control law with a synthesized structure Asymptotic Observer + Corrector + Speed control law(ACSC) is deduced. Basic characteristics of ACSC law are described, then the way to obtain the transmission matrix F(s) of dynamic corrector is presented. Controller's transmission function WO(p), insuring stability of closed loop system, is found as a solution of mean square norm optimization problem. Finally, the performance of control system is studied, especially the course accuracy and amplitude-frequency characteristics with/without control are compared for disturbed sea conditions.
In order to improve the handling stability of the vehicle, many unsymmetrical rubber bushing are carried into the connection between suspension and vehicle body. Compared with the traditional rubber bushing, the unsym...
详细信息
This paper proposes a real-time rollover threat warning system (RWS) of heavy duty vehicle. The function of RWS is used to determine the rollover threat of heavy duty vehicle and warn the driver to adjust the operatio...
详细信息
The rollover warning technology reported in this paper focuses on detection of heavy duty truck real-time rollover propensities. The paper suggests a new algorithm of rollover warning for heavy duty vehicle based on K...
详细信息
Sensor fault-tolerance control technology plays a significant role in maintaining the reliability of a Steering-By-Wire system. Based on the multi-dimension Gauss Hidden Markov Model (HMM) algorithm, this paper presen...
详细信息
Sensor fault-tolerance control technology plays a significant role in maintaining the reliability of a Steering-By-Wire system. Based on the multi-dimension Gauss Hidden Markov Model (HMM) algorithm, this paper presents a steering wheel angle sensor fault-tolerance control strategy in the Steering-By-Wire system using hardware redundancy technique. The impact of this strategy is examined through HIL (Hardware-in-Loop) experiments and test results demonstrate that the strategy proposed and employed here can effectively improve the performance of a Steering-By-Wire vehicle in terms of increasing its reliability and strengthening its security against sensor failures.
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...
详细信息
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 important role in such system. This paper presents a vision detection method using low-cost CMOS camera and pattern recognition algorithm for the classification of different occupant classes. First, in view of the relative fixed passenger room, pre-processing algorithm and occupant edge detection method for the measurement space of occupant image are established; then, principal feature of occupant image edge in the measurement space is described using Legendre moments; at last, classifier of vehicle occupant is obtained using Support Vector Machine so that the classification of vehicle occupant is made possible.
暂无评论