원문정보
초록
영어
Pro-active head restraint is a new automotive safety device with both active safety and passive safety characteristics. It can make a pre-estimation of the occurrence possibility of rear-end collision. Thus, the whiplash injury can be effectively reduced or even prevented. One of the key elements in rear-end collision avoidance system is to establish an effective safety distance mathematical model. Based on the running state of front car, the related calculation models of safety distance are established by means of dynamical and kinematical analysis of vehicle braking process and following process. Taken randomness and dynamic characteristics of parameters into consideration, the fuzzy relations between these parameters should be validated by means of fuzzy theory. Thus, it may accord with the actual driving conditions. By using the MATLAB software, the study shows that safety distance model and the methods used to determine parameters are reasonable, and the false alarm can be effectively minimized.
목차
1. Introduction
2. The Rear-end Collision Avoidance System Inside the Pro-active Head Restraint
3. The Establishment of Safety Distance Mathematical Model
3.1. The Model Assumption of Automotive Driving Condition
3.2. The Analysis of Automotive Braking Process
3.3. The Analysis of Automotive Following Process
3.4. The Safety Distance Analysis based on the State of the Front Car
4. The Determination of Parameters in Safety Distance Mathematical Model
4.1. The Determination of Velocity and Distance between Two Cars
4.2. The Determination of Parameters of Artificial Selection Unit
4.3. The Determination of Time Parameters
4.4. The Determination of Braking Deceleration
4.5. The Determination of Safety Stopping Distance
5. Simulation Results and Analysis
6. Conclusion
Acknowledgements
References