| 摘要 |
<p>A control circuit (12) for a mechanical locking device (11) in a restraint system of a motor vehicle, comprising an electrical output (19) for a connection (13) to a switch (14) in said locking device (11) operated depending on a locking state of said locking device (11), means (15, 17, 18) for applying a sensing signal (25) to said switch (14), and sensing means (20) for sensing an electrical value indicative of a switching state of said switch (14), characterized in that said control circuit (12) comprises means (21; 23, 24) for applying to said switch (14) an electrical cleaning pulse (22) with a voltage higher than said periodical sensing signal (25).</p> |
