Adaptive Braking Release for Vehicle Collision Avoidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vehicle collision avoidance systems face issues where automatic emergency braking either continues indefinitely or is released prematurely, potentially causing driver discomfort or safety risks, depending on the collision likelihood and travel environment.
Innovation Solution
A collision avoidance support system that includes means to determine collision likelihood, initiate emergency braking, and release it based on travel environment conditions, allowing for adaptive operation according to specific scenarios, thereby enhancing driver convenience and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If automatic emergency braking continues until the vehicle stops without exception, then collision avoidance is ensured, but driver comfort deteriorates when collision likelihood drops to safety level
Solution Approach 1:
The braking release means dynamically adjusts the braking operation by determining whether to release emergency braking based on multiple factors including collision likelihood, vehicle travel state, and surrounding environment. The system transitions from a static continuous braking approach to a dynamic adaptive approach that can release braking when safe, resolving the contradiction between ensuring collision avoidance and maintaining driver comfort.
Solution Approach 2:
The system continuously monitors collision likelihood, vehicle state, and environment conditions, using this feedback to determine whether to maintain or release emergency braking. The braking release means receives feedback from sensors and collision likelihood determination to make real-time decisions, allowing the system to balance safety and comfort based on current conditions.
2Ease of operation
If automatic emergency braking is released without exception when collision likelihood drops to safety level, then driver comfort is improved, but safety deteriorates in certain travel environments
Solution Approach 1:
The braking release means applies different braking release decisions based on local travel environment conditions. Instead of a uniform release policy, the system evaluates specific local conditions such as vehicle travel state, surrounding objects, and environment type to determine whether releasing braking is safe in that particular context, thus maintaining both comfort and safety.
Solution Approach 2:
The system changes the braking release decision parameter based on travel environment conditions. When conditions are favorable (safe environment), the system allows braking release; when conditions are unfavorable (potentially dangerous environment), the system maintains braking. This parameter change approach enables the system to adapt to different situations and avoid premature braking release that could compromise safety.
3Ease of operation
If emergency braking is released in potentially dangerous environments, then driver convenience is improved, but the risk of collision increases
Solution Approach 1:
The braking release means performs preliminary evaluation of travel environment conditions before releasing emergency braking. By assessing whether the environment is potentially dangerous in advance, the system prevents premature braking release that could lead to collisions. This preliminary anti-action ensures that braking is only released when it is safe to do so, eliminating the harmful effect of collision risk while maintaining driver convenience.
Data Source
AI summary
The likelihood of a collision of a vehicle colliding with an object in front of an own vehicle is determined, and an emergency braking control for avoiding a collision with the object is started in accordance with the determination results. A determination is made as to whether travel environment conditions have been established, from the location at which the vehicle is currently travelling, the situation behind the vehicle, and, the travel state of the vehicle, and the braking control is released when the likelihood of a collision dropped to a predetermined safety level during the period from the start of the emergency braking control until the own vehicle stops, and when the travel environment conditions have been established.