Adaptive Emergency Braking Control via Real-Time Dynamics Feedback
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Solution Overview
Problem
Existing emergency braking systems in vehicles rely on pre-defined parameterization that may not account for variations in vehicle loading, braking system malfunctions, or wear, leading to non-optimum braking behavior and potential safety risks.
Innovation Solution
Adaptive control of vehicle setpoint deceleration during emergency braking, based on real-time driving dynamics parameters such as mean vehicle full deceleration and vehicle velocity change, to ensure safe and reliable braking performance aligned with safety norms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pre-defined parameterization is used for emergency braking, then the braking system is simple to implement, but the braking performance is non-optimal due to variations in vehicle loading, malfunctions, or wear
Solution Approach 1:
The patent implements a feedback mechanism where the actual vehicle deceleration is continuously measured during emergency braking and compared with the target deceleration. Based on this feedback, the brake force is dynamically adjusted to achieve the desired braking performance, thereby resolving the contradiction between reliability and complexity.
Solution Approach 2:
The patent transitions from static pre-defined parameterization to dynamic adaptive control. The braking system continuously adapts the brake force based on real-time vehicle response, making the braking performance reliable across varying conditions while managing complexity through algorithmic control.
2Productivity
If maximum vehicle setpoint deceleration is applied, then the braking distance is minimized, but the braking behavior may become unsafe or non-compliant with safety norms
Solution Approach 1:
The patent uses feedback control to continuously monitor actual vehicle deceleration and adjust the brake force accordingly. This ensures that maximum braking efficiency is achieved while maintaining safety compliance, as the system adapts to the vehicle's actual response and prevents excessive or unsafe deceleration.
Solution Approach 2:
The patent dynamically changes the vehicle setpoint deceleration parameter during braking based on the vehicle's actual response. The target deceleration is adjusted in real-time to optimize braking efficiency while ensuring safety norms are met, resolving the contradiction between productivity and reliability.
3Adaptability or versatility
If the braking system is adapted to different vehicle configurations, then the braking performance is optimized, but the system parameterization becomes more complex
Solution Approach 1:
The patent implements a self-service approach where the braking system automatically adapts to different vehicle configurations through real-time measurement and feedback. The system determines its own optimal braking characteristics during operation, eliminating the need for complex pre-parameterization for different vehicle types while maintaining high adaptability.
Solution Approach 2:
The patent uses dynamic parameter adjustment during braking to achieve adaptability across different vehicle configurations. Rather than requiring complex pre-setting for each configuration, the system adapts parameters in real-time based on actual vehicle response, resolving the contradiction between versatility and parameterization complexity.
Data Source
AI summary
A method for performing emergency braking in a vehicle includes registering at least one object in surroundings of the vehicle and ascertaining a probability of collision for the vehicle with the at least one registered object to detect an emergency braking situation, autonomously activating service brakes of the vehicle using a vehicle setpoint deceleration to perform emergency braking if an emergency braking situation has been detected, and adapting the vehicle setpoint deceleration during the autonomously performed emergency braking. Adapting the vehicle setpoint deceleration takes place in dependence on at least one driving dynamics parameter. The driving dynamics parameter characterizes a real reaction of the vehicle to the performed emergency braking. The driving dynamics parameter is ascertained during the emergency braking.