Vehicle Launch Control System Terrain Adaptation
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Solution Overview
Problem
Current vehicle systems cannot anticipate and prepare for terrain changes between when a vehicle is parked and when it is launched, leading to potential wheel slip and terrain damage due to inadequate configuration for changed conditions.
Innovation Solution
A vehicle launch control system that uses sensors to determine terrain characteristics ahead of the vehicle and adjusts torque demand to prevent unwanted wheel slip, incorporating radar and acoustic sensors for accurate characterization and user input for verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle uses manual terrain type selection or reactive sensor-based terrain determination, then the system can be operated with simpler controls and lower cost, but the vehicle cannot prepare in advance for terrain changes and may experience wheel slip when launched on changed terrain
Solution Approach 1:
The system performs preliminary terrain assessment by detecting terrain characteristics in the vehicle's path before launch occurs. Sensors scan the terrain ahead and the system determines terrain type in advance, allowing the vehicle to prepare appropriate launch parameters before actually launching, thus preventing wheel slip on changed terrain surfaces
Solution Approach 2:
The system continuously monitors terrain characteristics and provides feedback to adjust launch parameters. When terrain changes are detected between parking and launch, the system receives feedback about the new terrain conditions and automatically adjusts torque demand and launch control settings to match the current terrain type
2Object-affected harmful factors
If the vehicle automatically detects and responds to terrain characteristics, then wheel slip and terrain damage are prevented, but the system requires more complex sensors and processing
Solution Approach 1:
The system replaces mechanical terrain assessment methods with sensor-based detection. Instead of requiring physical contact or manual inspection of terrain, the system uses sensors to detect terrain characteristics from a distance, automatically determining terrain type and adjusting launch parameters without mechanical intervention
Solution Approach 2:
The system performs self-assessment of terrain conditions and self-adjustment of launch parameters. The vehicle autonomously detects terrain characteristics, determines the appropriate terrain type, and modifies its own launch control settings without requiring external assistance or complex manual intervention
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system improves vehicle control and prevents wheel slip and terrain damage by automatically adjusting torque based on terrain conditions, enhancing safety and performance, especially in changing environments.
Implementation Method 1
the sensor system includes at least two sensors mounted on the vehicle, including at least one radar sensor
Implementation Method 2
the sensor system includes at least two sensors mounted on the vehicle, including at least one acoustic sensor
Data Source
AI summary
A vehicle launch control system for a vehicle (10) comprising an input for receiving an indication signal to indicate that vehicle launch is imminent; a sensor system (12, 22) configured to determine a terrain characteristic of the terrain in the path of the vehicle if the indication signal is received; and a processing module (33) configured to determine whether the terrain characteristic is likely to result in an unwanted level of wheel slip if the vehicle is launched, wherein the processing module (33) is further configured to provide an output to indicate that an unwanted level of wheel slip will occur based on the outcome of the determination.