A Numerical Simulation of AFR Switch of SI Engines
981439
05/04/1998
- Event
- Content
- A novel mechanical method of achieving a rapid switch between stoichiometric and lean conditions for SI engines is explored. Two and three throttle configurations, a switch strategy which employs a standard intake manifold and an assembly of pipes and throttle(s), are investigated numerically by using a one-dimensional engine simulation program based on the method of characteristics. The results indicate that it is possible to achieve rapid AFR switch without a torque jump, i.e. unperceptible to the driver.
- Pages
- 10
- Citation
- Li, J., Collings, N., and Ma, T., "A Numerical Simulation of AFR Switch of SI Engines," SAE Technical Paper 981439, 1998, https://doi.org/10.4271/981439.