Six-Phase Stator vs Three-Phase Stator: Ripple Reduction on J1939 Heavy-Duty Platforms
A 48 V auxiliary cooling fan motor on a Class 8 tractor started throwing J1939 error frames at 2,100 engine rpm — only under load, only when ambient temperature crossed about thirty-eight degrees Celsius, and never on the test bench at the Tier 1 supplier. The fan itself was not failing. The fan controller was […]