6 results about "Rear-end collision" patented technology

This invention provides a head and neck protection device for rear-end collisions, including a headrest seat, a first buffer assembly, and a limiting mechanism. When a rear-end collision occurs, the impacted vehicle accelerates forward, causing the head of an occupant to strike the first cushion. Upon impact, the first cushion drives a guide seat to move, compressing multiple sets of buffers. At this time, the first cushion and the multiple buffers work together to cushion the impact on the head, improving the device's buffering effect and reducing head injuries. Simultaneously, the movement of the guide seat drives the fixing assembly to release the limiting rod. The driving component then drives the limiting rod to rotate to a second state, so that the arc-shaped portion of the limiting rod faces the first cushion. When the head moves forward due to the impact reaction force, the limiting rod can contact the head, thereby limiting large-scale forward head movement, preventing neck strain, and improving the device's protective effect.

IMPROVED EMERGENCY BRAKING FOR MOTOR VEHICLES The present invention relates to a method for managing an automatic emergency braking function for a motor vehicle (2), comprising the following steps: a) real-time detection of a risk of frontal collision in the presence of an obstacle in front of the motor vehicle, by two front detection means (4, 6) of said motor vehicle; b) real-time estimation of whether automatic emergency braking could result in a risk of rear-end collision with a following vehicle, by a rear detection means (8) of the motor vehicle; c) triggering automatic emergency braking of the motor vehicle, when only one of the two front detection means identifies the obstacle in front and provided there is no risk of rear-end collision with the following vehicle in step b), or when both front detection means identify the obstacle in front. (Figure to be published with the abstract: Figure 1)

Method for displaying a braking distance, calculated from a reaction time and the time required for braking, on a display device (1) of a vehicle (6) in the form of a horizontal bar (8, 9), wherein a first horizontal bar (8) is displayed in a virtual representation of the vehicle (6) and other road users (7) or objects in the environment in spatial relation to each other to represent a first braking distance, wherein a second horizontal bar (9) is additionally displayed, which represents a second braking distance, in which a change in the reaction time due to detected fatigue and / or distraction of the person driving the vehicle (6) is taken into account compared to the first braking distance, wherein the two horizontal bars (8, 9) are hidden when a road user (7) ahead is detected and displayed, wherein the two horizontal bars (8, 9) are always displayed despite the road user (7) ahead.if, given a specified theoretical maximum deceleration of the vehicle ahead (7), a rear-end collision could not be prevented even with the aid of brake assist systems in the event of a sudden deceleration of the vehicle ahead.

This invention discloses an electromagnetic collision avoidance protection system for vehicle emergency braking and its control method. The system includes electromagnetic coil actuators (1–5) integrated inside the front and rear bumpers of the vehicle, multi-source and logic trigger detection modules (8, 9, 10), a supercapacitor energy storage group (6), a main control ECU (7), and an optional vehicle network communication module (11). When the vehicle brakes suddenly and the estimated time to collision (TTC) is no more than 1.5 seconds, the system drives the electromagnetic actuators of the bumpers to generate a strong magnetic field within 10 milliseconds, forming an electromagnetic repulsion field (12) between the vehicle and the adjacent vehicle, serving as an additional non-contact collision avoidance buffer layer outside the braking system. The system supports two working modes: eddy current induction repulsion and dual-vehicle cooperative direct magnetic repulsion. It automatically adjusts the repulsion force in three levels according to the estimated time to collision and has an event data recording function. The system response time of this invention is no more than 10 milliseconds, which can provide effective physical collision avoidance protection within a very short time window in which the driver cannot react. It works in conjunction with existing safety systems such as AEB and ABS, significantly reducing the incidence and intensity of rear-end collisions, and has high engineering feasibility and application value.