Phonetic transliteration:
维 (Wi-/Vi-) +
利 (-lly/-li).
维 "to maintain" is a standard syllable for the wi-/vi- sound (
维多利亚 Victoria,
维京 Viking). For the more famous American "Willy" (e.g. Death of a Salesman's Willy Loman) Chinese normally uses
威利 -
维利 leans more toward German/European bearers.