Adaptive Vehicle Deceleration Control for Driver-Specific Braking
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Solution Overview
Problem
Existing vehicle deceleration systems lack the ability to adapt to individual driver preferences, leading to suboptimal braking comfort and energy efficiency.
Innovation Solution
A control unit that learns and adapts the characteristic curve of vehicle deceleration devices based on driver input, traffic conditions, and environmental factors, adjusting parameters to enhance braking and driving comfort while minimizing energy consumption and pollutant emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed characteristic curve is used for vehicle deceleration, then the control system is simple and reliable, but the braking comfort does not adapt to individual driver preferences
Solution Approach 1:
The control unit automatically adapts the characteristic curve to driver preferences by monitoring accelerator pedal behavior after braking operations and self-adjusting the deceleration profile without requiring manual driver input or complex external calibration systems
Solution Approach 2:
The system uses feedback from the accelerator pedal position sensor to detect driver reactions to braking operations, then uses this feedback information to iteratively optimize the characteristic curve parameters for improved braking comfort
2Ease of operation
If the characteristic curve is adapted to driver preferences, then braking comfort is improved, but energy consumption increases due to less aggressive deceleration
Solution Approach 1:
The characteristic curve is made dynamically adjustable rather than fixed, allowing the system to optimize the balance between braking comfort and energy recovery based on real-time driving conditions, traffic situations, and accumulated driver preference data
Solution Approach 2:
The system changes the parameters of the characteristic curve (deceleration profile, timing, magnitude) based on detected driver preferences and current driving conditions, enabling flexible optimization of both comfort and energy efficiency
3Adaptability or versatility
If the characteristic curve is frequently adjusted based on driver behavior, then personalization is achieved, but the system response time and stability are reduced
Solution Approach 1:
The system performs preliminary evaluation of driver preferences by monitoring multiple braking operations and accelerator responses before making actual adjustments to the characteristic curve, ensuring that changes are based on sufficient data and not transient behavior
Solution Approach 2:
The system makes gradual, partial adjustments to the characteristic curve parameters rather than extreme changes, allowing smooth adaptation that maintains system stability while progressively achieving personalized braking behavior
Data Source
AI summary
A control unit for at least one vehicle deceleration device of a vehicle. The control unit includes an electronics unit including a memory unit in which a characteristic curve is stored which specifies a relation between a first input variable specified by an operation of a brake actuation element of the vehicle, and a setpoint variable regarding a setpoint vehicle deceleration exerted on the vehicle using the at least one vehicle deceleration device. The electronics device newly specifies at least one characteristic curve value of the characteristic curve under consideration of a second input variable specified by the driver by an operation of an accelerator of the vehicle, a current traffic and/or environment situation, and/or an ascertained position of the vehicle and a position-specific item of traffic and/or environment information, and the correspondingly modified characteristic curve is stored in the memory unit.