Hydraulic safety seat system

Abstract

A hydraulic seat safety system for vehicles comprising a fixed base and a movable seat unit connected to the fixed base by a hydraulic or pneumatic damping system so that in the event of a crash a controlled movement is produced to reduce the intensity of the force exerted on the occupant.

Description

1. Background and Problem SettingIn the automotive field, vehicle safety is a central aspect of development work. Despite modern restraint systems such as seat belts, airbags, and crash structures, the load on occupants during high-speed collisions remains a great problem. Particularly in the case of frontal and lateral impacts, considerable forces are transmitted to the upper body, the spinal column and the shoulder muscles. This can lead to severe injuries, in particular to centrifugal trauma, rib fractures and damage to the cervical spine.The hydraulic seat system presented here serves for the targeted reduction of these impact forces and for the optimization of the occupant protection by an adaptive movement of the seat in the event of a collision.2. Technical Solution and System DescriptionThe innovative seating system consists of three main components: 1. solid base structure:The seat structure is divided into two planes: a fixed base rigidly connected to the body of the vehicle and a movable seat pan on which the occupant is located.The fixed base serves as a structural member that enables power transmission to the vehicle body.2. Hydraulic Damping Unit:Between the fixed base and the seat shell, an adaptive hydraulic damping system is integrated, which is activated in the event of a collision.The system consists of high pressure cylinders equipped with a quick responding valve system.3. Sensor unit and control electronics:Integrated acceleration sensors and crash sensors detect the collision in real time.Microprocessor controlled control calculates the optimum damping strategy within milliseconds.The system adaptively adjusts the seat motion to the severity of the impact.3. Functioning in the event of a collision1. The impact is detected by the vehicle sensor system (e.g. airbag control unit). 2. the hydraulic system is immediately activated and modulates the resistance of the seat movement. 3. the seat pan moves forward in a targeted manner and thereby reduces the load on the occupants by a controlled force distribution. 4. the upper body is braked gently, whereby in particular the load of the cervical and thoracic vertebrae is reduced. 5. after the impact, the seat remains stably in its final position to ensure a safe position for the occupant.4. Advantages over existing systems Improved Energy Absorption: The hydraulic system reduces peak loads on the occupants. Adaptive Collision Detection: The system reacts individually to the severity of the accident. Compatibility with existing safety systems: Can be integrated into modern vehicles with airbags and seatbelt pretensioners. Increase in survival chances and reduction of severe injuries by controlled movement control.5. Possible Applications and Market PotentialUse in premium vehicles to meet new safety standards.Application in special vehicles such as police or emergency vehicles to minimize risk of injury in high speed applications.Integration into Autonomous Driving Vehicles to Further Optimize Safety of Passengers.This innovative seating system represents a significant advance in the area of passive safety systems and can set new standards for occupant protection in the long term.

Claims

A hydraulic seat safety system for vehicles comprising a fixed base and a movable seat unit connected to the fixed base via a hydraulic or pneumatic damping system, so that in an accident a controlled movement is generated to reduce the intensity of the force exerted on the occupant.The seating system of claim 1, wherein the damping system comprises one or more hydraulic cylinders combined with accident detection sensors and allowing adjustment of the intensity of damping based on the magnitude and direction of the impact.The seating system of claim 1 or 2, which, in a front impact, moves the seat forward to reduce the force applied to the occupant's body and minimize the risk of injury to the spinal column and the chest.The seating system of any preceding claim synchronized with the safety mechanisms of the vehicle including seatbelts and airbags and forming an integrated protection system.The seating system according to any one of the preceding claims, having adjustable settings for different types of vehicles, such as cars, trucks and autonomous vehicles, and being adaptable to the weight and size of the occupant.The seating system of any preceding claim, wherein a variable viscosity hydraulic fluid is used to enable adaptive performance in various accident conditions.The seating system according to any one of the preceding claims, which, in addition to frontal accidents, also reacts to lateral and oblique impact forces and protects the occupant.The seating system of any preceding claim, which can return to the home position after an accident and be reused without immediate replacement or repair.