Platooning Brake Controller with Dynamic Profile Switching
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Solution Overview
Problem
Conventional commercial vehicles fail to optimize normal and anti-lock braking effectiveness during vehicle platooning due to generic programming that does not account for specific conditions such as high friction road surfaces and weather, leading to suboptimal braking performance.
Innovation Solution
A system and method for controlling wheel brakes in a vehicle platoon that includes a transceiver to receive brake command signals from a leading vehicle and a controller to generate specific control signals for normal and anti-lock braking profiles optimized for platooning conditions, differing from standard profiles used outside of platooning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional vehicles use generic braking programming for all conditions, then the system can operate on a wide variety of road surfaces and weather conditions, but braking effectiveness is not optimized for specific conditions such as platooning on high-friction surfaces
Solution Approach 1:
The braking control system dynamically switches between different braking profiles (standard vs. platoon-optimized) based on operational conditions. The controller detects platoon mode and automatically applies the appropriate profile, making the system adaptive without requiring manual intervention or complex reconfiguration.
Solution Approach 2:
The system changes braking parameters (pressure delivery rates, modulation characteristics, threshold values) based on the detected operating mode. By storing multiple sets of parameters and selecting the appropriate set, the system optimizes braking performance for specific conditions without requiring a completely different control system.
2Reliability
If the controller is programmed to implement braking under a wide variety of varying conditions, then the system can handle different road surfaces and weather, but the system fails to optimize braking effectiveness in specific conditions like platooning
Solution Approach 1:
The braking control program is segmented into distinct profiles (standard braking profile and platoon-optimized braking profile). Each profile contains parameter sets tailored for specific conditions, allowing the system to maintain reliability across all conditions while achieving optimization for platooning through dedicated parameter sets.
Solution Approach 2:
The system pre-configures multiple braking profiles with optimized parameters for different conditions before operation. The platoon-optimized profile is prepared in advance with specific parameter sets for high-friction surfaces and automated braking, allowing immediate activation when platoon mode is detected without real-time calculation or adaptation delays.
3Productivity
If conventional braking systems use the same control method for normal and anti-lock braking, then the system structure is simpler, but the system cannot optimize both normal braking and anti-lock braking for platooning conditions
Solution Approach 1:
The control system dynamically selects between normal braking and anti-lock braking methodologies based on detected wheel slip conditions, and further dynamically applies the platoon-optimized profile when in platoon mode. This layered dynamic control allows optimization of both braking types for platooning without requiring separate dedicated systems.
Solution Approach 2:
The platoon-optimized braking profile serves multiple functions: it optimizes both normal braking and anti-lock braking for platoon conditions. A single profile configuration achieves dual optimization, reducing the need for separate control methodologies while maintaining high productivity for both braking types in platoon operations.
Data Source
AI summary
A system for controlling wheel brakes in a first vehicle platooning with a second vehicle includes a transceiver in the first vehicle that receives a brake command from the second vehicle to apply a wheel brake in the first vehicle. A controller in the first vehicle generates, responsive to the brake command, a first set of control signals that control delivery of fluid pressure to the wheel brake and implement a braking event. The controller may further detect a wheel slip condition indicative of slip in a wheel of the first vehicle during the braking event and generate, when the condition occurs, a second set of control signals to control delivery of fluid pressure to the wheel brake. The control signals are generated in accordance with braking profiles that differ from braking profiles used by the controller during braking events occurring in the absence of the brake command.