When the vehicle's mileage exceeds a certain range, regeneration becomes particularly important. Although passive regeneration does not require external intervention, its efficiency is relatively low and may not meet certain needs. Although active regeneration has significant effects, the required temperature is too high, which may make it difficult for cardholders who do not frequently drive on highways to achieve the desired regeneration effect.

We provide a comprehensive solution to address this challenge. Firstly, for National V models equipped with DPF, such as light trucks, Camry, Shifeng, Wuzheng, Hongta, Jinbei, and Heavy Duty Truck Ace, we are committed to solving the regeneration problem of DPF. You can contact our CheTong Connected Maintenance Service Platform at any time to obtain professional technical support and solutions.

In addition, when applying DPF technology, it is also necessary to pay attention to some key issues. Ensure compliance with the manufacturer's recommendations and maintenance guidelines to ensure the continuous and efficient operation of the DPF system. Regular inspection and maintenance of DPF, timely detection and resolution of problems, are key to maintaining vehicle performance and environmental standards.

1. Using non compliant oil can cause DPF poisoning and regeneration failure, therefore, users must ensure that they are adding fuel that meets the National V standard. Meanwhile, the engine should use engine oil (CJ-4 grade) and coolant that meet the requirements.

2. When the engine control system determines the need for regeneration, it will automatically start the regeneration program, and the engine idle will rise to 1000 r/min to remind the user that the DPF has entered the regeneration state.

3. Under normal circumstances, after entering the regeneration mode, the vehicle can drive normally for a period of time. After the regeneration is completed, the idle speed will automatically return to about 800 r/min, and the entire regeneration process will not affect the normal use of the vehicle.

4. During DPF regeneration, the exhaust pipe may produce a pungent odor, which is a normal phenomenon.

5. During in-situ regeneration of the diagnostic instrument, there may be a brief occurrence of smoke, which is caused by an increase in the temperature of the post-processing unit. The phenomenon will disappear once the temperature stabilizes. Please note that the exhaust pipe temperature is high during regeneration, do not approach it casually, and other personnel in the vehicle should leave.

6. If the engine idle speed remains at 1000 r/min for a long time, or if the vehicle power is significantly reduced during use, please contact professional service personnel for inspection and handling in a timely manner.

7. The engine should be maintained as required, and for school bus users, it is recommended to have a comprehensive maintenance every semester.

8. After starting the vehicle, it should be gradually warmed up to increase the water outlet temperature. In low-temperature environments, the engine speed will be limited to below 2000 r/min, which is a normal phenomenon. After the water temperature or time reaches the appropriate conditions, the engine speed will return to normal.

9. After using DPF for a period of time, due to the precipitation of ash in the fuel, regular ash cleaning treatment is required. For example, it is recommended to clean the dust of the Xichai 4DW National V DPF machine every two years or when driving 100000 kilometers. This work should be completed by professional personnel at the service station.