Utility Vehicle Front-Loader Control for Engine Stall Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Front loaders on utility vehicles face challenges in executing loading operations without stalling the internal combustion engine due to excessive resistance when penetrating into load materials.
Innovation Solution
A method is implemented where a control unit monitors the travel state of the utility vehicle and intervenes in the drive and brake management system to automatically put the vehicle in a drive-neutral stationary state if a potential overload is detected, ensuring the engine capacity is not exceeded.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the loading tool penetrates into the load material with high resistance, then the loading operation can be performed, but the internal combustion engine may stall due to excessive resistance
Solution Approach 1:
The control unit proactively monitors the travel state and loading conditions before the engine stalls, detecting potential overload situations in advance. By intervening preemptively to put the vehicle in drive-neutral stationary state, the system prevents the harmful effect (engine stall) before it occurs, while still allowing the loading operation to proceed
Solution Approach 2:
The control unit continuously monitors the travel state and loading conditions, creating a feedback loop that detects when resistance during loading operation approaches levels that could cause engine stall. This feedback mechanism enables real-time adjustments to maintain the balance between productive loading and engine protection
2Ease of operation
If the operator manually coordinates driving movement and loading movement, then the loading operation can be controlled, but the coordination complexity increases the operational difficulty
Solution Approach 1:
The control unit automatically performs the coordination function that would otherwise require manual operator intervention. By autonomously monitoring travel state and loading conditions and making necessary adjustments to the drive-neutral stationary state, the system eliminates the need for complex manual coordination, significantly easing the operational burden on the operator
Data Source
AI summary
A method for supporting a loading operation, in which a front loader is arranged on a utility vehicle and includes a loading tool for picking up a load material and a hydraulically adjustable loader linkage for pivoting and for raising and lowering the loading tool, includes monitoring via a control unit during the execution of a loading operation whether a travel state that indicates instantaneous or intended forward travel of the utility vehicle would lead to a potential overload state of a travel drive provided for carrying out forward travel, and automatically via the control unit put and keep the utility vehicle in a drive-neutral stationary state in a loading assistance mode by intervening in one or more of a drive and brake management system when the travel state would lead to the potential overload state.