Online automatic ineffectiveness warning system for diesel particulate filter and control method

Abstract

The invention provides an online automatic ineffectiveness warning system for a diesel particulate filter and a control method. A microcontroller is connected with a data collecting unit used for collecting vehicle information, a GPS communication module used for receiving longitude and latitude information of a vehicle and vehicle speed information, a RTC module used for calculating time information, a data storage module used for analyzing and storing the vehicle information and a warning indication lamp control module used for conducting warning. The data storage module is further connectedwith a GPRS communication module and is used for sending the data information of the vehicle to an external data monitoring platform online in real time through the GPRS communication module. Throughcollection and analysis of the data of engine rotation speed, downstream exhaust temperature of the diesel particulate filter and the exhaust back pressure, whether the DPF normally works or not is monitored, and when the DPF is ineffective, an alarm is given in time; the online automatic ineffectiveness warning system for the diesel particulate filter can judge whether the diesel particulate filter, all the temperature sensors and all the pressure sensors normally work or not, the alarm is automatically given when corresponding components are ineffective, and therefore the quantity of particulates and the fuel consumption of a diesel engine are effectively reduced.

Description

technical field [0001] The invention relates to an alarm system. In particular, it relates to an on-line automatic warning system and control method for particle trap failure based on exhaust temperature and back pressure for diesel vehicles equipped with particle traps. Background technique [0002] Exhaust emissions from motor vehicles, especially heavy-duty diesel vehicles, have become the primary source of air pollution in my country and an important factor causing haze and photochemical smog pollution. According to the "Annual Report on the Prevention and Control of Motor Vehicle Pollution in China", the number of diesel vehicles accounts for 16.1% of the total number of vehicles, and its nitrogen oxide and particulate matter emissions account for 68.1% and 90% of the total vehicle pollutant emissions. Therefore, eliminating or treating the running "yellow label vehicles" can effectively reduce the emissions of NOx and particulate matter from diesel vehicles. [0003]...

AI Technical Summary

Problems solved by technology

When the relevant components of the particulate matter filter fail, if the driver cannot be promptly and effectively prompted to troubleshoot and deal with the failed components, the regeneration process will not be completed according to the preset conditions, resulting in an increase in engine exhaust back pressure, a decrease in filtration efficiency, and diesel engine failure. Fuel economy and power deteriorate and cause more serious exhaust pollution, and even cause diesel engine failure and vehicle damage

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