Patent ID: 8010248

Claim:
A data recorder comprising: a controlled state detecting unit, operable to detect a controlled state of a vehicle by a driver; an operating state detecting unit, operable to detect an operating state of the vehicle; a state recording unit; and a recording condition determination unit that determines whether or not the controlled state and the operating state are to be recorded in the state recording unit based on at least the controlled state of the controlled and operating states, the recording condition determination unit, reads, as the controlled state, a controlled state of an accelerator by the driver and a controlled state of a service brake by the driver, and reads, as the operating state, a vehicle speed, and determines that the controlled state and the operating state are to be recorded in the state recording unit when a recording condition in which the accelerator is controlled, the service brake is controlled, and the vehicle speed is equal to or lower than a predetermined value, is established.