Simulation prediction method for PEMS emission of whole vehicle based on universal characteristics of engine
A technology of universal characteristics and simulation prediction, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of unguaranteed prediction accuracy, huge workload and experimental benchmarking workload, etc.
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[0019] The present invention proposes a relatively fast and accurate method for predicting PEMS vehicle emissions. The method interpolates the original emission results of the universal characteristics of the engine bench and adds the data processing of the transfer function, and simulates and predicts the PEMS emissions of the vehicle, which can improve Simulation predicts the speed, reduces the cost of PEMS vehicle experiments and improves the accuracy of emission prediction.
[0020] Such as figure 1 Shown, the simulation prediction method of the vehicle PEMS discharge based on engine universal characteristic of the present invention comprises the following steps:
[0021] Step 1: According to the technical parameter table provided by the OEM, obtain the vehicle parameters, engine universal characteristic map, and post-processor parameters, and build the target model CRUISE vehicle model, post-processor BOOST chemical reaction model, urea injection control model, Engine be...
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