SoftStart Clutch controller

Product Features

Features

• Closed loop control for consistent performance throughout the entire clutch life.
• Precise current measurement for accurate and repeatable pull-in detection.
• Closed loop PWM current control unaffected by charging system voltage.
• One controller part number:
  · Radiometric RPM control automatically scales to RPM at time of engagement.
  · On-the-fly current calibration automatically adapts to different sized clutches.
• Default to open loop control if RPM signal is unavailable
• Optional fixed current calibration possible for special applications.
• Optional open loop available (no tachometer feedback)
• Short circuit protected
• Load dump protected

How it works

Electromagnetic clutches inherently engage abruptly. For many applications with inertial loads, high stresses are produced, potentially shortening the life of components, bearings, mechanical mounts etc. The advantages of electromagnetic clutches are such that the stress problem has traditionally been tolerated by adding cost, either by over designing components, increasing enginesize, or simply accepting a higher failure rate.

The patented GDI SoftStart controller sensest he exact point at which the friction surfaces contact, then rapidly reduces the current to a level that allows the clutch so safely slip, but not release. Using engine RPM feedback, the patented controller adjusts the clutch current in a manner that drived the engine RPM to fit a desired profile.

Fields of Use

For Gas, Diesel, or Electric powered equipment; remove damaging jolt during clutch engagement; tachometer closed loop feedback (inductive or alternator input)

Problems solved by the SoftStart Clutch

• Bolt Shear
• Broken Belts
• Link Breakage
• Belt Screech
• RPM Droop
• Engine Stall
• Operator Jolt
• Mechanical Slam

GDI’s patented SoftStart Clutch Controller offers a simple solution to all of these issues!

Enhance the perception of value among users by making clutch engagement smooth and predictable.

• Mechanical Life
  The SoftStart lessens forces to mechanical parts and improves the life of bolts, decks, brackets and other mechanical parts
• Belt Life
  Reduce wear and breakage for belts and improve the quality & reputation oft he equipment
• Engine Stall
  The SoftStart eliminates engine stalling and RPM droop by utilizing closed loop RPM monitoring while engaging the electric clutch
• Mechanical Jolt
  Smooth engagement means less jolt tot he equipment and customers
• Engine Cost Savings
  The SoftStart Clutch enables OEMs to reduce equipment engine size to save money