Vehicle Traction Control via Wheel Drive Potential Comparison
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional traction control systems face disadvantages in improving vehicle traction, especially in unfavorable environmental conditions, due to initial wheel spinning which reduces friction and stability.
Innovation Solution
A method that measures the drive potential of all driven wheels, compares these values, and applies a braking force to the wheel with the lower drive potential to enhance traction, using a braking device to prevent slip and improve torque transfer to the ground.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a braking device is used to brake a spinning wheel in conventional traction control systems, then torque can be transferred to other wheels, but the wheel spins before brakes are applied which reduces the coefficient of friction between the wheel and the ground
Solution Approach 1:
The patent measures the drive potential of all driven wheels before any braking action is taken. By comparing drive potentials and identifying the wheel with the lowest value beforehand, the system applies braking force preventively to that specific wheel before it can spin. This preliminary measurement and comparison enables the system to act in advance, preventing the harmful spinning effect that reduces friction, while still allowing torque to be effectively transferred to wheels with higher drive potential.
2Power
If wheel spinning occurs before braking in conventional systems, then torque redistribution to other wheels is possible, but the ground surface is smoothed and traction is further reduced
Solution Approach 1:
The system performs preliminary measurement of drive potential for all driven wheels and compares these values before any wheel can spin. By identifying the wheel with the lowest drive potential in advance and applying braking force to it beforehand, the system prevents the wheel from spinning and smoothing the ground surface. This maintains the coefficient of friction and preserves traction, while still enabling effective torque redistribution to wheels with higher drive potential through the differential.
3Loss of time
If conventional traction control waits for slip to occur before applying brakes, then response time is reduced, but the wheel has already lost friction and stability
Solution Approach 1:
The patent implements preliminary measurement of drive potential for all driven wheels and compares these values before any slip or spinning occurs. By identifying the wheel with the lowest drive potential in advance and applying braking force preventively, the system eliminates the delay inherent in conventional systems that wait for slip detection. This proactive approach maintains ground contact stability and friction coefficients, while achieving instantaneous response to potential traction issues.
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
This approach enhances vehicle traction and acceleration by preventing slip and maintaining ground contact, thereby improving stability and reducing the disadvantages of conventional systems.
Implementation Method 1
triggering of a braking device having a certain wheel braking force to brake the wheel with the lower drive potential
Data Source
AI summary
A method for operating a driver assistance device for a motor vehicle. A drive potential is respectively determined from all driven wheels of at least one axis of the motor vehicle. The drive potentials are compared and a braking device with a specific wheel braking force is controlled for braking the wheel having a lower drive potential.