| 摘要 |
PROBLEM TO BE SOLVED: To easily realize at a low price a second shut-off path required for safety of a plurality of electrical loads, particularly of magnet valves by shutting off the power feeding path of the remaining drivers with a protection means provided within the power feeding path when a fault is generated in a driver and/or load. SOLUTION: A safety device for a plurality (parallel connection) of magnetic valves 1 has a high side path 2a and a low side path 2b. One controllable driver 3 is individually provided for each magnetic valve 1. Moreover, in the high side path 2a, a protection fuse 4 is provided. During the ordinary operation mode, the magnetic valve 1 is individually controlled with a controller 5 using the driver 3 in order to control, for example, ABS, ASR or FDR system. Fault of magnetic valve 1 can be identified with control IC or monitor logic of driver 3. In this case, the protection fuse 4 operates under the predetermined control of all magnetically-controlled valves to shut off every power feeding. |
