The invention provides an engine motorcycle hour redundancy recording device and method, the engine motorcycle hour redundancy recording device comprises a control
chip, a main memory, a timing
chip, a controller power supply module and a standby battery, and the control
chip sends a read-write instruction to the main memory through an SPI
bus and sends the read-write instruction to a storage unit of the timing chip through an I2C
bus. According to the engine motorcycle hour redundancy recording device and recording method, the NVRAM in the timing chip is used as the standby memory to synchronously
record the motorcycle hours, the hardware
backup function of the motorcycle hours is achieved, when the working
voltage of the main memory is unstable, the motorcycle hours of the standby memory are used as the engine motorcycle hours, and the redundancy of the engine motorcycle hours is recorded. The engine hour recording error is avoided, and the reliable recording of the engine hour is realized.