Telehandler Load Capacity Calculation for Variable Operating Positions
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Solution Overview
Problem
Existing telehandlers face challenges in accurately determining maximum load capacity in non-standard operating conditions due to the need for frequent updates of load tables and the imprecision of interpolated load values, leading to potential safety issues and reduced operability.
Innovation Solution
A telehandler system that calculates maximum load capacity through an electronic control unit using sensors to determine current operating parameters, applies safety factors, and performs computations to account for various criticality conditions, reducing the need for pre-calibrated load tables and enhancing adaptability to different equipment configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If discrete load tables are used for different operating configurations, then the telehandler can determine maximum load values for predefined configurations, but the system becomes difficult to maintain and update when new equipment is added
Solution Approach 1:
The patent replaces the mechanical/table-based load determination system with a computational system. Instead of using discrete load tables that require manual updates, the system uses a control unit that performs real-time calculations based on sensor data and computational procedures, automatically adapting to different equipment configurations without requiring table updates.
Solution Approach 2:
The control unit automatically determines maximum load values through computational procedures using real-time sensor data. The system serves itself by continuously calculating allowable load values based on current operating conditions, eliminating the need for manual table updates when new equipment is added.
2Adaptability or versatility
If interpolation between load table values is used for intermediate operating configurations, then the telehandler can operate in non-predefined configurations, but the load determination becomes imprecise and overly conservative
Solution Approach 1:
The patent replaces the interpolation method with direct computational determination. Instead of estimating load values by interpolating between discrete table entries, the control unit calculates the maximum allowable load directly based on real-time sensor measurements and structural parameters, providing precise values for any operating configuration without conservatism.
Solution Approach 2:
The system transitions from static load tables to dynamic real-time calculation. The control unit continuously updates the maximum load determination based on current operating conditions, allowing precise and accurate load values for any configuration rather than relying on predefined discrete values.
Data Source
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AI summary
A telehandler (10) comprising at least one base frame (20), provided with ground support wheels (21) and stabilisers (22), at least one telescopic lifting arm (50) articulated to said base frame (20), at least one piece of work equipment (55) supported by said lifting arm (50), and an electronic control unit (810) configured to: - determine, by means of sensors (82), one or more position parameters indicative of a current operating position of the telehandler (10) from among the possible operating positions of the telehandler; - calculate a maximum load that can be lifted by the equipment in the current operating position; and - activate a safety procedure, if the equipment in the current operating position is subjected to a load that exceeds the maximum load that can be lifted.