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.

Vehicle rear-end collision protection system

Abstract: The utility model aims to solve the technical problem by providing a vehicle rear-end collision protection system which comprises a sensor, a control unit and an actuating element, wherein the sensor is connected with the input end of the control unit, and the output end of the control unit is connected with the actuating element. The vehicle rear-end collision protection system is characterized in that the sensor comprises a radar sensor and a collision sensor and is arranged inside a rear bumper of a vehicle; the actuating element comprises an airbag and a seat system adjusting mechanism; the control unit includes a collusion control unit, an airbag control unit and a seat control unit; the radar sensor and the collision sensor are connected with the input end of the collusion control unit respectively; and the collusion control unit controls the airbag and the seat system adjusting mechanism through the airbag control unit and the seat control unit respectively. The vehicle rear-end collision protection system is quite different in constitution and structure from the vehicle collision early-warning system in the prior art, and has a relatively-perfect passenger protection function.

Killer Tailgating: Recommendation of Traveling Intervals between Consecutive Motor Vehicles for Rear-end Collision Avoidance

Abstract: Rear-end collisions are the most common type of automobile collision in modern traffic situations, and they have attracted much concern from both traffic safety engineers and travelers. In many cases, however, research that has focused on whether cars follow each other too closely has provided only a narrow insight into human factors. Therefore, this paper offers a basic method to estimate the emergency braking distance of passenger vehicles with respect to the following interval that should be kept as a “gap” between two consecutive vehicles moving in a lane. Four phases of the overall braking process are summarized—the reaction lag, deceleration by the vehicle engine, deceleration by the brake system and full deceleration—and equations are developed to describe the minimal traveling interval between consecutive arrivals, which varies with the pavement conditions, traveling speed and traffic intensities. Since traffic is not constant and probabilistic laws are involved, a Poisson distribution model is presented to estimate the probability of vehicles passing a fixed point within a given interval, so as to assess the risk-taking level of a traffic platoon. Two numerical examples show that vehicles on wet roads have braking distances longer than that suggested by the two-second rule. In addition, the level of risk taking in higher intensity traffic is unexpectedly higher, which could be interpreted as motorists behaving more aggressively and more likely to accept shorter following distances and higher speeds because they believe that they have the ability to swerve to avoid a collision.

Motor vehicle hydraulic brake system

Abstract: The proposal is for a motor vehicle hydraulic braking system with an actuating unit which is secured to the splashboard of a motor vehicle and actuated by a brake pedal. In order to eliminate the risk of injury especially in a rear end collision, the invention proposes that means (12 - 17, 22, 23, 26, 27) be provided with which, in the event of an accident resulting in deformations of the front of the vehicle, an increased volume requirement for the braking system is simulated, thus producing an increase in the actuating travel of the actuating unit (1, 2).

Failure display for vehicle

Abstract: PROBLEM TO BE SOLVED: To easily recognize a failure by a driver while driving a vehicle even in the case of the occurrence of the failure in some of systems, in a vehicle mounting a plurality of the systems having a function different from each other. SOLUTION: As one example of a warning light 4a provided in a meter display 4, a trouble display A1 of a lane change support system, a failure display A2 of an all weather vision system, a failure display A3 of a driving support system, and a failure display A4 of a rear end collision foreseen system, are provided.

Vehicle rear-end collision preventing system and method based on road surface conditions

Abstract: The invention discloses a vehicle rear-end collision preventing system and method based on road surface conditions. The system comprises a driving information obtaining device, a safe state judgment device, a touch alarm device, an autonomous brake output device and a data information storage unit. The driving information obtaining device comprises a distance measuring sensor, a wheel speed sensor and an in-tire sensor and is used for sensing vehicle motion information and the road surface attachment state; the safe state judgment device is used for selecting target deceleration through driver characteristics based on the different road surface conditions, inputting the target deceleration into a safe distance module, and comparing the vehicle relative distance with the current relative distance to determine the real-time operating safe state of a vehicle; the touch alarm device comprises a touch sensor installed on the surface of a driver seat and a touch sensor installed on an accelerator pedal. Road information and vehicle information can be obtained through the multiple sensors, an alarm is given or autonomous brake measures are taken in time according to the safe state of the current vehicle, vehicle rear-end collision can be effectively avoided, and road potential safety hazards are reduced.