Topic
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.
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Patent•
09 Mar 2016
TL;DR: In this article, an automobile rear-end collision avoidance method and a collision avoidance device for high-speed driving is presented, which is applicable to high speed driving and different states of the automobile are indicated by the high-definition display screen through different digital colours.
Abstract: The invention discloses an automobile rear-end collision avoidance method and an automobile rear-end collision avoidance device. According to the invention, a distance between an automobile and an approaching front automobile is tested through an infrared distance meter, the current automobile speed is read through navigation equipment, a safe brake distance of the automobile is calculated, a driver is reminded of the safe brake distance and a suggested automobile speed in real time, and once the front automobile suddenly brakes or accelerates, the driver can be reminded through a voice or a high-definition display screen, so as to timely respond and cope. The automobile rear-end collision avoidance method and the automobile rear-end collision avoidance device, which are disclosed by the invention, are applicable to high-speed driving, and different states of the automobile are indicated by the high-definition display screen through different digital colours.
4 citations
Journal Article•
TL;DR: To improve initiative security of vehicle at high speed, authors study the athletic characteristics for vehicle in rear-end driving, establish the BP model to adjust distance for safe parking in real time, and bring forward the control means according to the dangerous degree rule.
Abstract: To improve initiative security of vehicle at high speed,authors firstly study the athletic characteristics for vehicle in rear-end driving.Based on the running state of front car,authors bring forward the model for calculation of follow distance.Next,authors analyze randomness and dynamic of three key parameters in model,give out the method to confirm slow-moving time of brake by means of fuzzy consequence,and give out the formulas to calculate acceleration of back car to brake and front car to drive.Otherwise,authors study the control and perform for rear-end collision avoidance,establish the BP model to adjust distance for safe parking in real time,and bring forward the control means according to the dangerous degree rule.
4 citations
Patent•
16 Jun 2010
TL;DR: In this article, a vehicle rear-end collision alarm with an electronic radar is described, where the electronic radar was connected with a vehicle brake lamp, and the vehicle rear end collision alarm enabled the front vehicle and the rear vehicle to keep the safe distance and avoid the occurrence of a rear-ending collision accident.
Abstract: The invention discloses a vehicle rear-end collision alarm which is provided with an electronic radar, wherein the electronic radar is connected with a vehicle brake lamp; the vehicle rear-end collision alarm is characterized in that when the electronic radar installed at the tail of a front vehicle detects that a rear vehicle exceeds a safe distance, a signal is transferred to the brake lamp in time, the brake lamp frequently flashes to alarm the rear vehicle, and the driver of the rear vehicle sees the alarm and controls the vehicle within the safe distance in time. The vehicle rear-end collision alarm enables the front vehicle and the rear vehicle to keep the safe distance and avoids the occurrence of a rear-end collision accident.
4 citations
09 Oct 2017
TL;DR: In this paper, the authors examined the effectiveness of rear-end collision warnings presented in different sensory modalities as a function of warning timing in a driving simulator and found that tactile warning significantly outperformed the visual warning, providing support for tactile displays as effective rear end collision warnings.
Abstract: This study examined the effectiveness of rear-end collision warnings presented in different sensory modalities as a function of warning timing in a driving simulator. Drivers experienced four warning conditions: no warning, visual, auditory, and tactile. The warnings activated when the time-to-collision (TTC) reached a critical value of 3.0 or 5.0 s TTC. Driver reaction time (RT) was captured from the time the driver crossed the warning activation threshold to brake initiation. Mean driver RT data showed that the tactile warning significantly outperformed the visual warning, providing support for tactile displays as effective rear-end collision warnings.
4 citations
Proceedings Article•
02 Sep 2017TL;DR: In this article, the effects of different front occupant backseat's rigidities in the case of a rear end collision using a multibody virtual model of an occupant was studied. And a real crash test was made to analyze the kinematics of the occupant.
Abstract: The aim of this paper is to study the effects of different front occupant backseat’s rigidities in the case of a rear end collision using a multibody virtual model of an occupant. Simulation will be conducted in PC Crash, the most common accident reconstruction software using a MADYMO multibody occupant to simulate kinematics and dynamic of the passenger. Different backseat torques will be used to see how this will influence the acceleration in the head and torso of the occupant. Also, a real crash test is made to analyze the kinematics of the occupant. We believe that the softer seat’s rigidity will reduce not only the head’s acceleration but also reduces the effect of „whiplash” upon the neck due to the fact that the backseat will rotate backwards increasing its displacement and absorb some of the energy generated by the collision. Although a softer seat could reduce the head’s acceleration, a broken seat will increase it due to the fact that the impact of the backseat with the vehicle’s rear seats will generate a second collision. So, in order to achieve a lower acceleration, a controlled torque is recommended and a controlled angular displacement of the backseat is to be used.
4 citations