Improve accuracy and performance with position feedback on solenoid LVDT – Linear Variable Displacement Transformer Position transducer – short stroke High resolution Non-contacting Robust
Solenoid force vs. spring force positions spool Select one solenoid to control direction and flow 40% input Sol-a => 15% flow P-to-B 80% input Sol-b…
Solenoid force opposed by spring force = rate x displacement Spool position is constant, when forces are balanced Input (coil current) is directly proportional to…
Solenoid force opposed by pressure P x A (area seat 3) Input to amplifier changes solenoid current (output Force) 20% input => 20% pressure 80%…
Solenoid current is proportional to armature force, unlike on/off solenoid This proportional force is linear within a working stroke (approx 1.5 mm) Given a constant…
a. Disassembly/reassembly b. Inspection – Clutch friction disc thickness – Clutch plate warpage Check clutch plate warpage on a flat plate using a feeler gauge.…
a. Disassembly/reassembly
a. Disassembly/reassembly