−Reducing the number of traffic accidents is a declared target of most governments. Since dependence on driver reaction is the main cause of road accidents, it would be advisable to replace the human factor in some driving-related tasks with automated solutions. In order to automate a vehicle it is necessary to control the actuators of a car, i.e., the steering wheel, accelerator, and brake. Th...

The difference in response to electric and hydraulic braking causes sudden changes torque during mode switching. An electro-hydraulic composite system’s dynamic coordination control strategy is proposed under switching conditions. By establishing the model of system (EHB), key factors affecting speed EHB are analyzed, fuzzy controller for pressure regulation brake wheel cylinder designed. At sa...

By conducting an interview survey using actual driving videos, we found that normal drivers without the right of way have incorrect awareness of the potential hazards when entering a non-signalized intersection. We also conducted a questionnaire survey in which subjects answered a sequence of their driving behaviors concerning when and how they make safety checks and operate the accelerator and...

The condition of brake fluid is important to automotive safety, reliability and brake system longevity. Brake fluid absorbs moisture over time. Increasing moisture levels in the brake fluid lower the boiling point, increase viscosity and cause corrosion of system components. Brake fluid with high moisture content can boil when extreme braking is required or a pad sticks. The effect of boiling i...

With the rapid development of automobile electronic industry, more and control technologies are replacing traditional mechanical devices automobile. Modern chassis technology is developing towards direction wire control. The system will replace which mainly consists hydraulic, pneumatic systems, so as to realize integration with other systems. In this paper, status vehicle by in various countri...

The dynamic characteristic of pneumatic brake system is very important, so the full-parameter model of the pneumatic brake system was established on the base of the technology of computer simulation. Its key brake components include brake valve, relay valve, diaphragm brake chamber and pneumatic circuit. AMESim was first introduced on the basis of mathematical derivation. So the multivariable c...

Air brake system has been widely used in heavy trucks and intercity buses for its great superiority over other brake system. The practical performance of air brake system may be greatly different from if we analyze it with static theory. Thus, it is necessary to build an integrate air brake system model to simulate the process of brake accurately. However, the dynamic mathematic model of air br...

gas motion within the cylinder is one of the major factors that control the combustion process in spark ignition engine. it also has significant impact on heat transfer. both the bulk gas motion and the turbulence characteristics of the flow are important and governing the overall behavior of the flow. an arrangement for obtaining a stratified charge, using port injection, is proposed for a cur...

The loader has a lot of recoverable braking energy due to its larger mass and frequent starts/stops. For 5-ton pure electric drive loader, an emergency intention recognition strategy based on hydraulic pressure was proposed. acceleration pedal brake used distinguish different intentions, the system as feedback parameter for improve safety. Aiming at electro-hydraulic composite mode switching, c...