| 主权项 |
1. A data processing apparatus for a vehicle, which operates upon receiving a power supply from an in-vehicle device, and performs a predetermined data processing, the data processing apparatus comprising:
a nonvolatile memory for storing backup data, to be held at a time when stopping the power supply from the in-vehicle device, among data utilized in the data processing; a predicting device for predicting that the power supply from the in-vehicle device is cut off, based on vehicle operation by a driver or a situation around the vehicle; a first backup device for storing the backup data in the nonvolatile memory when the predicting device predicts that the power supply from the in-vehicle device is cut off; and a second backup device for storing the backup data in the nonvolatile memory every time a predetermined standby time elapses at a time when traveling with a vehicle velocity equal to or higher than a predetermined speed, and at a time when stopping, wherein: the first backup device stores a part of data higher in priority among the backup data in the nonvolatile memory; and the second backup device stores all of the backup data in the nonvolatile memory. |
