Adaptive Spin Control for Construction Machine Torque Slip Prevention

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Solution Overview

Problem

Construction machines experience slippage or spinning of wheels or tracks, which can damage the wheels or material being handled, due to inefficient torque delivery.

Innovation Solution

A control system that adjusts torque delivery based on signals from work machine speed, ground engaging mechanism speed, and location sensors to prevent slippage by setting maximum torque values and designating slip zones.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If high torque is delivered to the ground engaging mechanism, then the work machine can move more effectively, but slippage or spinning of the wheels or tracks occurs which damages the wheels or material

Engineering Contradiction:

Improvework machine movement effectivenessVSAvoidwheel or track slippage and spinning

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The controller continuously receives signals from the work machine speed sensor and wheel speed sensor, compares the actual wheel speed to the expected speed based on machine movement, and adjusts torque delivery in real-time based on this feedback to prevent slippage

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts the maximum torque value delivered to the ground engaging mechanism based on operating conditions detected by the sensors, allowing optimal torque delivery that adapts to changing terrain and load conditions to prevent slippage while maintaining productivity

Inventive Principle:

Principle #15Dynamics

2Reliability

If the controller continuously monitors and adjusts torque based on sensor signals, then slippage is prevented, but the device complexity increases

Engineering Contradiction:

Improveslippage preventionVSAvoidcontrol system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The control system automatically monitors wheel speed and adjusts torque delivery without operator intervention, using the existing sensor infrastructure to self-regulate and prevent slippage

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The controller integrates multiple functions including torque management, slip detection, and adaptive control into a single system that uses existing sensor data for multiple purposes, reducing the need for additional dedicated components

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20260002338A1Adaptive Spin Control System and Method for Construction Machine

Publication Date: 2026.01.01 DEERE & CO

AI summary

A work machine for loading material in a worksite includes a power source configured to provide torque, a ground engaging mechanism configured rotate to move the work machine along a ground surface using torque from the power source. A controller is configured to receive a first signal indicative of a speed of the work machine moving along the ground surface and a second signal indicative of a rotational speed of the ground engaging mechanism, and the controller is configured to adjust the torque delivered to the ground engaging mechanism based on the first signal and the second signal, for example, by setting a maximum for an amount of torque to be delivered to the ground engaging mechanism or by sending a signal to the power source or a drivetrain coupled to the power source to change the amount of torque output by the power source or the drivetrain.