Vehicle Collision Baffle Ejection for Secondary Impact Prevention

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Solution Overview

Problem

Autonomous vehicles that lose control continue moving, leading to secondary accidents and increased damage, especially at low speeds, highlighting the need for a method to prevent further collisions and protect pedestrians.

Innovation Solution

A method and apparatus that utilize sensors to detect vehicle state information, determine collisions, and deploy a baffle at a target position to slow or stop the vehicle, preventing secondary accidents by contacting the ground, which includes obtaining vehicle state information, determining collisions through calibration models, and sending ejection instructions to deploy a baffle made of soft material.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the autonomous vehicle continues moving forward or backward after control system failure, then the vehicle maintains its driving function, but the damage like crushing caused by continuous movement becomes even more serious than the collision itself

Engineering Contradiction:
Improvevehicle control reliabilityVSAvoidcrushing damage to pedestrians
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies preliminary anti-action by deploying a baffle before the vehicle continues moving after collision. The baffle is ejected to contact the ground and create mechanical resistance that opposes the vehicle's motion, preventing the harmful continuous movement that would cause crushing damage to pedestrians underneath the vehicle.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The patent uses a baffle as an intermediary object between the vehicle and the ground. This baffle acts as a mediator that converts the vehicle's kinetic energy into friction and deformation energy through ground contact, thereby stopping the vehicle without direct impact on pedestrians and avoiding crushing injuries.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a baffle is deployed to stop the vehicle after collision, then secondary accidents are avoided, but the device complexity increases due to additional ejection mechanisms

Engineering Contradiction:
Improvesafety performanceVSAvoidejection execution mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing the baffle to serve multiple functions: it acts as a collision detection trigger, a braking mechanism through ground contact, and a safety barrier. This multi-functionality reduces the need for separate systems and simplifies the overall device complexity while maintaining high safety performance.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent utilizes parameter changes by transforming the baffle from a stored state to an ejected state upon collision detection. The ejection execution mechanism changes the baffle's position and contact state with the ground, creating a simple binary control system that avoids complex continuous control mechanisms while achieving reliable vehicle stopping.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Effectively reduces the risk of secondary collisions and pedestrian injuries by slowing or stopping the vehicle after a collision, thereby enhancing safety performance and preventing more severe accidents.

Implementation Method 1

a baffle located at a target position to contact the ground

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

eject a baffle located at a target position to contact the ground

Methodology Applied
Scientific EffectImpact Force: Impact Force

Data Source

PatentUS11390243B2Method and apparatus for processing vehicle collision, vehicle, device and storage medium
Publication Date: 2022.07.19 APOLLO INTELLIGENT DRIVING (BEIJING) TECHNOLOGY CO LTD
  • US11390243B2 patent drawing
  • US11390243B2 patent drawing
  • US11390243B2 patent drawing

AI summary

The present disclosure provides a method and an apparatus for processing a vehicle collision, a vehicle, a device and a storage medium. The method includes: obtaining vehicle state information of a target vehicle; the vehicle state information includes: acceleration information of the target vehicle and/or pressure information of a peripheral part in the target vehicle; determining whether a collision occurs to the target vehicle; sending, when it is determined that the collision occurs to the target vehicle, an ejection instruction is sent to an ejection execution mechanism in the target vehicle, the ejection instruction is used to instruct to eject a baffle located at a target position to contact the ground. The baffle is ejected immediately when the present disclosure detects that a collision occurs to the vehicle, which can avoid a secondary collision of the vehicle, thereby improving the safety performance of the vehicle.