6 results about "Head impact" patented technology

A shock mitigation system is disclosed for protecting a person or a substructure, which is part of a structure, from trauma and injury resulting from the shock of an impact. The shock mitigation system comprises a plurality of nodes arranged in a node matrix, each node being connected to its neighboring nodes. When the node matrix is ​​affected by the shock of an impact during use, each node can rotate and roll at least partially relative to each other's nodes in the node matrix along the substructure. The shock mitigation system can be used in helmets for people prone to head impacts, as well as in body armor.

The application relates to a hierarchical double-tank coordinated inflation method and device based on head collision point prediction, and belongs to the technical field of airbag inflation. The method comprises the following steps: taking the midpoint of a vehicle bumper as an origin, taking the vehicle head direction as an x axis, taking the left side of the vehicle as a y axis, establishing a coordinate system, and converting a vehicle front collision area into a plurality of line segments in the coordinate system; based on the height of a pedestrian, the distance from the pedestrian to the origin, the relative speed, the azimuth angle and the body inclination angle of the pedestrian, the initial coordinates of the head of the pedestrian, the velocity components of the pedestrian on the x axis and the y axis are calculated; the head prediction coordinates and the shortest distance of each line segment are calculated, the line segment corresponding to the shortest distance less than a first preset threshold value is determined as a target line segment, and the remaining time from the current time to the occurrence of the collision is determined; based on the target line segment, the remaining time and the required inflation time of each airbag, an inflation strategy is determined. The method provided by the application improves the inflation efficiency and realizes that the external safety airbag is inflated when the personnel collides with the vehicle.

An applique assembly for a vehicle includes an elongated structural member, an inner member coupled to the elongated structural member and an outer member fixedly coupled to the inner member at locations through the elongated structural member. The elongated structural member is disposed at least partially between the inner member and the outer member.

This utility model discloses a compressible engine hood buffer block and a car with pedestrian protection in mind, relating to the field of automotive safety design. It includes: a cylindrical housing comprising an upper housing and a lower housing connected to each other, with a connecting hole at the top of the upper housing; a spring, one end of which is fixed inside the lower housing and positioned along the axial direction of the housing; a buffer block body, the middle of which is disposed through the connecting hole, with one end of the buffer block body outside the housing for connection to the engine hood, and the other end of the buffer block body inside the housing engaging with the inner wall of the upper housing; and a support block disposed inside the housing, with both ends connected to the spring and the buffer block body, respectively. When the engine hood with the buffer block installed is normally closed, after a pedestrian collision, the buffer block body is compressed and retracted into the housing after being subjected to the impact force, causing the engine hood to shift downwards a certain distance, creating a larger energy absorption space for head impacts and reducing head injury.

The invention discloses a tooth socket-based head impact signal measurement device and method, and relates to the technical field of head impact signal measurement, and the device comprises a customized tooth socket, a circuit board packaged in the customized tooth socket, and a charger matched with the circuit board; the internal contour of the customized tooth socket is customized according to the shape of the maxillary teeth of a wearer, the customized tooth socket is tightly assembled with the maxillary teeth of the wearer through friction force, and the customized tooth socket forms a rigid measurement interface between the sensor and the skull so as to avoid interference of skin and soft tissues; the circuit board comprises a microcontroller, a three-axis accelerometer, a three-axis gyroscope, a memory card, a Bluetooth module and a battery; the three-axis accelerometer is used for collecting three-axis translation acceleration signals when the head is impacted; the three-axis gyroscope is used for collecting three-axis rotation angular velocity signals when the head is impacted; and the microcontroller is used for storing the signal to the memory card when the signal meets a triggering condition. The accuracy of head impact signal measurement can be improved.