Rear-end collision

About: Rear-end collision is a research topic. Over the lifetime, 618 publications have been published within this topic receiving 5666 citations. The topic is also known as: shunt.

A forward brake indicate device and method thereof

Abstract: The present invention relates to a Forward Brake Indicator device used in the automobiles, preferably, relates to a method for indicating brake status of on-going vehicle (1) to following vehicle(s) (3) to avoid rear end collision due to sudden braking of vehicle (2).

IoT based rear-end collision avoidance system in highways

Abstract: Rear-end vehicular collision due to illegally parked and unusually slow-moving vehicles on National Highways can be avoided if drivers can get alert messages and full information needed to make an objective judgment about what is ahead. A lot of work has been done on collision avoidance strategies using various networking techniques. IoT based solutions area recent research trend. The objective of this project is to develop an intelligent system that will identify illegally parked and the slow-moving vehicles on highways using the message queuing telemetry transport (MQTT) protocol that enables vehicles to exchange their real-time information, such as velocity and position, with the neighbouring vehicles through brokers (also called as servers). MQTT being a lightweight IoT protocol for machine to machine communication is useful for an effective data transfer between vehicles. An optimal algorithm has been developed to accurately identify every vehicle in the vicinity of the region of interest and to calculate both speed and position of the vehicle and transfer data from one vehicle to another vehicle. The new algorithm is implemented in a Raspberry Pi using a global positioning system (GPS) module. The results show that the collision avoidance system that uses MQTT protocol can accurately generate alert messages 90% of the time when there are only ten or less than ten vehicles which is also the case in most highways. Also, the system is easy to implement without requiring extra equipment. Hence the new technique can be used in various types of vehicles, especially cargo trucks and buses that use the highways frequently.

Braking control device

Abstract: PROBLEM TO BE SOLVED: To provide a braking control device capable of preventing occurrence of any secondary accident in a rear end collision, and reducing an impact applied to one's own vehicle. SOLUTION: The braking control device for controlling the braking force of a brake device 10 provided on a wheel of a vehicle comprises a collision detection means 41 for detecting the collision of the vehicle, and an acceleration detection means 43 for detecting the acceleration in the longitudinal direction of the vehicle. After the collision detection means 41 detects the collision, the braking force is generated in the braking device 10 when the acceleration detected by the acceleration detection means 43 is below the predetermined threshold. COPYRIGHT: (C)2008,JPO&INPIT

Vehicle rear-end collision avoidance system, method and single-chip microcomputer

Abstract: The invention relates to a vehicle rear-end collision avoidance system, method and single-chip microcomputer. A main control unit (20) is connected with an environmental perception module (10) through a peripheral communication interface, is connected with an executing unit (30) of a self vehicle through a line, and is connected with a vehicle-mounted unit (40) of the self vehicle through a dedicated short range communication DSRC interface; the vehicle-mounted unit (40) of the self vehicle communicates with the vehicle-mounted unit (40) on the front vehicle through a DSRC technique of a vehicle-mounted Ad-hoc network; the vehicle-mounted unit (40) on the front vehicle controls a front vehicle brake light of the executing unit (30) in the front vehicle through an interrupt signal generated in an electronic hardware interface. Through a preset procedure by the single-chip microcomputer, according to the speed of the self vehicle, relative vehicle speed, and the distance between the self vehicle and the front vehicle, the main control unit (20) calculates a critical security vehicle distance, judges the dangerous degree of collision generated between the self vehicle and the front vehicle in the travelling process, and then triggers relevant action of the executing unit. According to the automobile rear-end collision avoidance system, method and single-chip microcomputer disclosed by the invention, the probability of vehicle rear-end collision can be greatly reduced.