Development of a UEGO sensor controller based on dSPACE

UEGO (Universal Exhaust Gas Oxygen) sensor provides emission control benefits that can help meet the stringent emission regulations. Due to the complexity of UEGO sensor, a controller is required. This paper describes a new design for a dSPACE-based UEGO controller. The hardware of system is introduced, the flowchart of the temperature and the pump current control are given. Experiments on Xiali carburetor engine bench have done and the results show the performance of the controller is as good as Horiba MEXA-700?.