Controlling method of vehicle exhaust gas recirculation, apparatus, and electronic device

A controlling apparatus, a gasoline particulate filter (GPF) or a diesel particulate filter (DPF) of a vehicle processes the gas exhausted by an engine and exhausts to an exhaust channel, and the exhausted gas by the GPF/DPF can be recycled into an exhaust gas re-circulation (EGR), the EGR cools the recycled gas using a cooling liquid and exhausts into an air intake of the engine;

• the apparatus comprises:
• a first controlling module, before the GPF/DPF starts to work, controls the EGR to cool the temperature of the recycled gas at a lowest gas temperature required being entranced into the engine;
• and
• a second controlling module, after the GPF/DPF starts to work, according to a gas temperature change and an intake flow change of an air intake of the EGR, adjusts an opening of a valve arranged in a vent of the EGR and a working power of a pump arranged in a liquid duct of the EGR, for making the EGR to cool the gas recycled by the EGR in a safe temperature range required by the engine.

An electronic device comprises:

• at least one processor;
• and
• a storage medium communicated with the at least one processor;
• wherein the storage medium stores instructions the processor executes the instructions in the storage medium to implement the following steps:
• before the GPF/DPF starts to work, controlling the EGR to cool the temperature of the recycled gas at a lowest gas temperature required being entranced into the engine;
• and
• after the GPF/DPF starts to work, according to a gas temperature change and an intake flow change of an air intake of the EGR, adjusting an opening of a valve arranged in a vent of the EGR and a working power of a pump arranged in a liquid duct of the EGR, for making the EGR to cool the gas recycled by the EGR in a safe temperature range required by the engine.