| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an on-vehicle control device continuously performing a drive control of an on-vehicle actuator while required control reliability is ensured, even if battery voltage is temporally lower than I/O operation guarantee voltage of a main control part. <P>SOLUTION: A main control part 11 is a part functioning as a host computer of the on-vehicle control device, so as to perform a lot of controls or processing, such as a drive control of the on-vehicle actuator (an ignition plug or the like), a memory control along with the control, and diagnosis of on-vehicle equipment. A power circuit 13 is a part supplying its operating voltage Vm to the main control part 11, while monitoring the battery voltage VBAT directly supplied from an on-vehicle battery. The main control part 11 selectively and continuously performs the only processing appropriate for a predetermined voltage range including the drive control of the on-vehicle actuator, when the battery voltage VBAT is decreased to the predetermined voltage range lower than the I/O operation guarantee voltage of the main control part 11. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
