Adaptive Emergency Braking Parameter Selection
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Solution Overview
Problem
Existing emergency braking systems in vehicles issue premature warnings and initiate braking too early due to standardized control parameters tailored to vehicles with low braking performance, leading to reduced driver acceptance and safety.
Innovation Solution
An emergency braking system that selects a parameter set specific to the actual vehicle variant, allowing for precise calculations of collision probability and warning timing based on the vehicle's current braking system, ensuring warnings are issued only when necessary and reducing false alarms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standardized control parameters tailored to vehicles with low braking performance are used, then legal compliance is ensured for all vehicle variants, but warnings are issued prematurely and braking is initiated too early for vehicles with high braking performance
Solution Approach 1:
The system determines actual braking performance parameters (deceleration capability, braking distance) for the specific vehicle variant and uses these measured parameters to calculate collision times and control emergency braking timing, rather than using standardized conservative parameters for all vehicles
Solution Approach 2:
The system measures the actual braking performance of the vehicle through sensors and testing, feeds this information back to the control unit, and uses it to adjust the emergency braking control parameters dynamically based on the specific vehicle's capabilities
2Reliability
If standardized control parameters for low braking performance vehicles are used, then safety is ensured for the worst-case scenario, but driver acceptance decreases due to frequent false warnings
Solution Approach 1:
The control parameters are changed from standardized conservative values to actual measured values specific to each vehicle variant, allowing the system to issue warnings and initiate braking at appropriate times that match the vehicle's real capabilities, thereby reducing false warnings while maintaining safety
3Reliability
If conservative control parameters are used to ensure legal compliance, then all vehicle variants meet regulations, but emergency braking is initiated too early for high-performance vehicles
Solution Approach 1:
The system transitions from static standardized parameters to dynamic parameters that are determined through actual measurement of each vehicle's braking performance, allowing the control system to adapt to the specific characteristics of each vehicle variant and initiate braking at the optimal time
Solution Approach 2:
The control parameters are changed from fixed conservative values to variable values based on actual vehicle performance measurements, enabling precise timing of emergency braking that prevents both premature and delayed intervention
Data Source
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Figure 2
AI summary
The invention relates to an emergency braking system (6) for a vehicle (1), in particular a utility vehicle, wherein the emergency braking system (6) has an emergency braking control unit (7) for the emergency braking system (5) in accordance with a first parameter set (P.1). According to the invention, one parameter set (P.1) can be selected for the control of the emergency braking system (6) from a plurality of parameter sets (P.j) by the emergency braking control unit (7), wherein each of the plurality of parameter sets (P.j) is associated with a vehicle variant and matches the emergency braking system (6) to the associated vehicle variant, wherein the vehicle variant is characterized by a design of a brake system (2) of the particular vehicle variant, in order to adapt the emergency braking system (6) of the particular vehicle variant to the design of the brake system (2) of said vehicle variant, wherein a parameter set (P.1) associated with the vehicle variant (V.1) that characterizes the currently present vehicle (1) is selected by the emergency braking control unit (7).