| 摘要 |
<P>PROBLEM TO BE SOLVED: To control both of pure onboard equipment and non-pure onboard equipment by connecting the non-pure onboard equipment to exclusive cable which connects a steering switch and the pure onboard equipment. <P>SOLUTION: A steering switch device includes: a main control part 11 which outputs a control signal to the pure onboard equipment 200 or non-pure onboard equipment 300 based on an operation signal of the steering switch; a first analog relay circuit part 12 inserted by a first signal line 2 and a second signal line 3; a second analog relay circuit part 13 inserted between the steering switch and a power supply for signal detection; and a relay control part 14 which performs switching control of the first analog relay circuit part 12 and the second analog relay circuit part 13. The main control part 11 turns on the first analog relay circuit part 12, and turns off the second analog relay circuit part 13, in a normal mode and turns off the first analog relay circuit part 12, and turns on the second analog relay circuit part 13, in an external mode. <P>COPYRIGHT: (C)2012,JPO&INPIT |
