Autonomous Braking Memory Register for Instant Lane Change Response
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Solution Overview
Problem
Existing autonomous braking systems are inadequate in extreme situations, such as high vehicle speeds or short distances, and fail to respond instantaneously during lane changes, leading to potential collisions due to sensor limitations and reboot requirements.
Innovation Solution
An autonomous braking system comprising a detecting module, tracing module, collision path prediction module, memory register, and decision module that detects and predicts collisions, records object coordinates, and determines appropriate braking actions based on collision time, enabling instantaneous responses without rebooting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sensor is rebooted to reset the driving assistant system after steering wheel repositioning, then the system can be reset, but the response time increases and collision risk arises at high speeds
Solution Approach 1:
The system performs preliminary actions by predicting collision paths and recording object coordinates before actual collision occurs. The memory register pre-stores object position data during normal operation, so when lane changing is detected, the system can immediately query pre-recorded data without waiting for sensor reboot, thus resolving the time delay contradiction
Solution Approach 2:
The system dynamically switches between different operational modes: during normal driving it operates in standard sensor monitoring mode, but when lane changing is detected it transitions to a rapid response mode that queries the memory register for pre-recorded object coordinates, allowing instantaneous collision risk assessment without sensor reboot
2Speed
If the sensor response speed is increased to handle high vehicle speeds, then the response time improves, but the system complexity increases
Solution Approach 1:
The system segments the collision avoidance function into two independent parts: (1) the original sensor-based real-time monitoring, and (2) a new memory register-based historical data storage and query system. This segmentation allows the new feature to be added without modifying the existing sensor response mechanism, avoiding system complexity increase while achieving rapid response through alternative data sources
3Stability of the object's composition
If the driving assistant system is limited to front direction and low speed, then the system stability is maintained, but the adaptability to various driving situations deteriorates
Solution Approach 1:
The memory register and collision path prediction module are designed with universal applicability - they can store and process object coordinate data regardless of vehicle speed or direction. The system universally queries this pre-recorded data for any lane changing scenario, enabling the same core mechanism to handle both low-speed front-direction cases and high-speed lane changing cases, thus achieving multi-functionality without compromising stability
Data Source
AI summary
An autonomous braking system includes a detecting module, a tracing module, a collision path prediction module, a memory register, a collision time prediction module and a decision module. The detecting module recognizes multiple objects located ahead of a vehicle, and then the tracing module traces the moving objects. The collision path prediction module is used to obtain a possible collision range and a non-collision range. The memory register records the coordinate of the objects located within the possible collision range. When one of the objects moves out of the possible collision range, its data is instantaneously removed from the memory register. The collision time prediction module predicts a collision time between the vehicle and each of the objects. The decision module determines if a brake assist is activated in accordance with the collision time.