HEV Driving Cycle Recognition Based On Historical Driving Cycle Data

With the rapid increase of car ownership in China, automobile exhaust has become one of the main causes of haze weather continues. Hybrid vehicles in the current new energy vehicle infrastructure construction conditions can simultaneously achieve energy conservation and to meet consumer demand for the use of models. Hybrid vehicles improving fuel economy needs to be adjusted accordingly energy management strategy based on actual driving condition of the vehicle. In this paper, hybrid city bus driving cycle recognition based on historical driving cycle data is proposed, and historical driving cycle data storage and management equipment has been designed.At first, based on classification and recognition method of Dalian four typical driving cycles, which are previous studied by our group, driving cycle recognition based on historical driving cycle data is proposed. The vehicle speed is monitored, and the characteristic parameters will be extracted. The characteristic parameters are compared with the parameters of typical driving cycles, and driving cycle recognition results can be achieved. Driving cycle recognition data are managed according to vehicle longitude, latitude and time quantum. When the vehicle is running on the bus lines, a historical database will be gradually built up. The vehicle driving condition is recognized based on the historical data.Then the processing method of historical data is optimized according to the driving cycle recognition accuracy. Through the adjustment of the latitude and longitude grid, time quantum and the historical driving condition data correction method, driving cycle recognition accuracy of this method is improved.At last, historical driving cycle data storage and management equipment is designed. The equipment can monitor the vehicle speed through CAN-BUS. The latitude and longitude information of the location of the vehicle is obtained by GPS module. Historical driving cycle data are stored in SD card and managed by management module for SD card. After debugging and testing the system, the system can realize the functions of recognition and data storage and management.