| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power source state sensing device that can make the actual power source state of the vehicle and a power source state that can be recognized with a power source control part 6 match each other when the power source control part 6 is reset after a user lastly changes a power source state of a vehicle, and the voltage of a battery 10 is lower than a writable voltage of an EEPROM2. <P>SOLUTION: A RAM7 is provided which has a writable voltage lower than the writable voltage of the EEPROM2. Since the power source state sensing device like this is provided with the RAM7, the data about a power source state of vehicle can be stored in the RAM7 even if the power source state of the vehicle is changed when a voltage of the battery 10 is lower than the writable voltage of the EEPROM2. Consequently, even if the power source control part 6 is reset thereafter, the power source control part 6 can recognize the power source state of the vehicle using the data stored in the RAM7, and the actual power source state of the vehicle can be matched with the power source state of the vehicle that is recognized with the power source control part 6. <P>COPYRIGHT: (C)2009,JPO&INPIT |
