Work Vehicle GUI for CVT Engine Speed Feedback
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Solution Overview
Problem
Operators of work vehicles equipped with continuously variable transmissions (CVTs) face difficulties in achieving and confirming desired operating parameters, leading to reduced efficiency and increased task duration due to lack of feedback on engine speed and transmission mode.
Innovation Solution
A graphical user interface (GUI) is implemented to provide real-time feedback on engine speed and transmission mode, featuring indicators for engine speed range, mode selection, and symbols to represent target engine speeds, allowing operators to easily adjust and confirm optimal operating parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If operators control engine speed lever and transmission lever without feedback, then the control system remains simple, but operator efficiency decreases and task duration increases
Solution Approach 1:
The patent implements a graphical user interface that provides real-time feedback to operators about current transmission mode and engine speed relative to target parameters. The GUI displays visual indicators showing whether the vehicle is operating in the desired mode, enabling operators to make informed adjustments without increasing physical control complexity.
Solution Approach 2:
The graphical user interface acts as an intermediary between the complex transmission control system and the operator. It translates complex transmission states and engine speed data into simple visual indicators, allowing operators to interact with the system efficiently without needing to understand the underlying complexity.
2Loss of information
If no feedback is provided on operating parameters, then the interface remains simple, but operators cannot confirm desired mode operation
Solution Approach 1:
The graphical user interface uses color-coded visual indicators to communicate transmission mode status and engine speed information. Different colors represent different operating states, allowing operators to quickly assess whether desired parameters are achieved without complex displays or text-heavy interfaces.
Solution Approach 2:
The patent transforms abstract transmission mode data and engine speed values into a visual dimensional representation on the GUI. The graphical display adds a visual dimension to the control interface, presenting information spatially rather than through text or numerical readouts alone, making it easier to comprehend at a glance.
Data Source
AI summary
A control system for a work vehicle system includes a controller that instructs a graphical user interface to present a first indication having a member extending between a first end positioned below a second end, wherein the second end is positioned above the first end, and present a second indication indicative of an engine speed range, such that the second indication includes a lower engine speed value and an upper engine speed value. In addition, the controller instructs the graphical user interface to selectively present a first symbol at the first end and a second symbol at the second end to indicate that an engine speed varies between the lower engine speed value and the upper engine speed value, and selectively present only the first symbol at the first end to indicate that the upper engine speed value corresponds to a target engine speed.