What is OBDII Driving cycle?

The OBDII Driving Cycle is a series of tests that are used to evaluate the emissions performance of vehicles equipped with on-board diagnostics (OBDII). The driving cycle simulates real-world driving conditions and includes a variety of different driving modes, such as idling, acceleration, deceleration, and cruising. The emissions data collected during the driving cycle is used to determine whether a vehicle meets emissions standards.

The OBDII Driving Cycle is a federal regulation that was implemented in 1996. It is based on the Urban Dynamometer Driving Schedule (UDDS), which was developed by the Environmental Protection Agency (EPA). The UDDS is a 7.5-mile (12.1-km) driving cycle that simulates a typical commute in an urban area.

The OBDII Driving Cycle is more comprehensive than the UDDS and includes a wider variety of driving modes. It also takes into account the effects of air conditioning and other vehicle accessories on emissions. The OBDII Driving Cycle is a more realistic representation of real-world driving conditions and provides a more accurate assessment of a vehicle's emissions performance.