Forklift Display Switching Speed and Steering Angle
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Solution Overview
Problem
The existing display panels for industrial vehicles, such as fork-lift trucks, become large due to the need for multiple meters to display various information types, compromising space without improving operation efficiency.
Innovation Solution
A vehicle information display device with a programmable controller that selectively displays vehicle speed or steering angle based on detected vehicle speed, using sensors and a meter that can show either parameter at a time, minimizing the display area without reducing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple display devices are provided for each information type (vehicle speed, steering angle), then operation efficiency is improved, but the display panel area increases
Solution Approach 1:
The patent applies multi-functionality by designing a single meter that can display multiple types of information (vehicle speed and steering angle) by switching between different display modes based on vehicle speed conditions, eliminating the need for separate dedicated display devices for each parameter
Solution Approach 2:
The patent implements dynamics by making the display content changeable based on operating conditions - the meter dynamically switches between displaying vehicle speed and steering angle information according to the vehicle speed threshold, optimizing information presentation for different operational states
Data Source
AI summary
A steering angle of steered wheels and a vehicle speed of a fork-lift truck are respectively detected by sensors (4, 5). A CPU (1) compares the vehicle speed with a predetermined speed (S2), and causes a meter (6) to display the steering angle when the vehicle speed is lower than the predetermined speed (S4, S14), and causes the meter (6) to display the vehicle speed when the vehicle speed not lower than the predetermined speed (S3, S13). As a result, the space for the display device can be reduced without affecting the operation efficiency of the fork-lift truck.