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In order to increase the safety of vehicle reversing, a vehicle reversing collision avoidance device was developed based on single chip computer. The basic principle and the framework of the device were introduced. For the device hardware, the principle of ultrasonic distance measurement was given, the AT89C51 single chip computer was chosen, and the hardware circuits were designed. According to the...
Some traffic rules make the road network include restricted routes. In order to calculate the optimal path in road network with restricted routes, the characteristics of road network with restricted routes was studied, and the corresponding mathematic model of the road network was built. The road network with restricted routes was translated into the road network without restricted routes according...
The use of combined direct yaw-moment control (DYC) with Active Front Steering (AFS) control to improve vehicle handling and stability is proposed. To improve the response of yaw rate, the strategy of sliding mode theory is employed for AFS controller. Basing on the optimal control theory, the DYC controller is designed. The DYC controller makes the vehicle follow the desired dynamic model by sideslip...
Vehicle guidance system (VGS) is one of important contents of intelligent transportation system (ITS). However, in many developing countries, VGS is backward. To heighten level of VGS of China, the composition of VGS, the functions of subsystems were studied, and critical technologies, such as geographic information system (GIS), global positioning system (GPS), were applied into the systems. In order...
In order to enhance level of vehicle guidance system (VGS) in China, the framework, subsystem and critical technologies of VGS were studied, and geographic information system (GIS), Global Positioning Systems (GPS), etc. were applied into corresponding subsystems. Paying attention to the subsystem of route optimization, the mathematical model of road network was built. The storage structure of road...
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