公开(公告)号：JPH04222426A

公开(公告)日：1992-08-12

申请号：JP5873391

申请日：1991-03-22

Applicant: MARELLI AUTRONICA

Inventor： ROBERUTO BERUCHIESHI ,  ROBERUTO BETSUTEIINI

IPC: B60R16/04 ,  H02J7/14 ,  H02J7/16

Abstract: PURPOSE: To provide a battery charging system for an automobile capable of indicating a broken wire between a battery and a generator. CONSTITUTION: A generator 4 and its output are euiqpped with a rectifier 7 for connecting to the terminal of a battery 1 by a cable 9. A switch 10 is connected to the terminal of the battery 1, and an display lamp 11 connected in series to the switch 10 is in on state, when no current is being supplied by a current generator 2. A voltage generator 3 is connected to a field winding 6 of the current generator 2 and is equipped with a first and a second input terminals A, L, respectively connected to the current generator 2 and the display lamp 11. Also a voltage regulator 3 monitors the electric potential between the first and second input terminals A, L and a control circuit 15 which turns the display lamp 11 to on state, when the electric potential exceeds a predetermined reference value during the operation of the current generator. Because of this, if an interrupt occurs between the current generator 2 and battery 1, it can be indicated to the user.