Traction Control System for Wheel Slip Prediction

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Traction vehicles experience reduced productivity and surface quality degradation due to wheel slip in low traction conditions, which existing technologies fail to effectively predict and mitigate.

Innovation Solution

A traction control system that estimates forces acting on a ground-engaging implement and wheels, controlling the implement or drivetrain to minimize wheel slip by applying a differential lock or adjusting torque, thereby maintaining optimal force balance to prevent slip.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If wheel slip is allowed in low traction conditions, then vehicle mobility is maintained, but productivity decreases and surface quality degrades

Engineering Contradiction:

Improvevehicle productivityVSAvoidwheel slip

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system predicts wheel slip conditions by monitoring the force balance between drag force on the implement and moving force from the wheels before slip occurs. By detecting when the drag force exceeds the available moving force, the system takes preliminary action to prevent slip, adjusting implement position or drivetrain parameters proactively rather than reactively

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors the force balance between drag force acting on the ground-engaging implement and moving force provided by the drive wheels. This feedback loop allows real-time detection of wheel slip conditions and enables dynamic adjustment of implement position or drivetrain parameters to maintain optimal force balance and prevent slip

Inventive Principle:

Principle #23Feedback

2Productivity

If ground-engaging implement depth is increased to improve productivity, then material handling efficiency increases, but wheel slip likelihood increases

Engineering Contradiction:

Improvematerial handling efficiencyVSAvoidtraction stability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system dynamically adjusts the position of the ground-engaging implement based on real-time force balance conditions. When wheel slip is predicted, the implement position is automatically adjusted to reduce drag force, and when traction is sufficient, the implement can be positioned for optimal material handling, creating a dynamic adaptation to changing traction conditions

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters including implement position and drivetrain settings based on the detected force balance. By adjusting these parameters in response to predicted wheel slip conditions, the system optimizes both productivity and traction stability under varying load and surface conditions

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS9845008B2System and method of detecting load forces on a traction vehicle to predict wheel slip

Publication Date: 2017.12.19 DEERE & CO

AI summary

A method of minimizing the occurrence of wheel slip in a traction vehicle includes a drivetrain, at least one wheel for providing tractive effort on a support surface, and a ground-engaging implement moveable relative to the support surface. The method includes estimating a first force acting against the ground-engaging implement, estimating a second force provided by the at least one wheel operable to move the vehicle on the support surface, and controlling the ground-engaging implement based on a difference between the first force and the second force.