π Case Study
VT Safety Lock Enforcement for High-Speed Corn Harvesting
Operators bypassing manual safety limits leading to mechanical damage and grain quality loss
ποΈ Project Overview
Custom VT safety profile for 32 km/h corn harvesting with automatic header height lock and rotor speed limiter
π― Challenge
Operators bypassing manual safety limits leading to mechanical damage and grain quality loss
π§ Design Approach
VT-enforced dual-parameter lock: speed-triggered hydraulic cut-off + rotor RPM cap; integrated with GPS-derived ground speed validation
π Design Diagram
AI-generated project design illustration
π Key Calculations
Safety Activation Threshold Delta
|GPS Speed β Wheel Speed|
Result: < 0.8 km/h
Confirms valid speed source for lock activation
π Results
Zero header collisions; 12% improvement in grain integrity; approved under ISO 25119-2 PLd requirementsπ‘ Lessons Learned
- β’Safety locks require redundant speed sources
- β’Dual-parameter enforcement prevents workarounds
- β’GPS integration adds verificationβnot just control
β Key Takeaways
- 1Safety locks require redundant speed sources
- 2Dual-parameter enforcement prevents workarounds
- 3GPS integration adds verificationβnot just control