Por TIMATIC, o banco de dados usado pelas companhias aéreas:
Visa required, except for Passengers with a family member residence card issued by Romania. The card must be issued to family members of a national of Switzerland or an EEA Member State. They are visa exempt for a maximum stay of 90 days and must travel with or travel to join the national of Switzerland or EEA Member State. This does not apply to passengers with a different type of residence Permit.
Portanto, se viajar com sua esposa e permanecer por no máximo 90 dias, você não precisará de visto.
Mostre seu passaporte e cartão de residência da família no controle de fronteira alemão.