A multi-stage joint recovery control method for vehicle engine exhaust energy

Abstract

The invention relates to a multistage joint recovery control method for car-mounted engine exhaust energy. The work condition of a car-mounted engine is detected, and power needed by the car-mounted engine is judged; meanwhile, the temperature of car-mounted engine cooling liquid input and output water is measured; all solenoid valves are controlled to be on and off through an electronic control unit; when the electronic control unit judges that a refrigerator of the car-mounted engine is located in a low-speed low-load work condition, a low-speed low-load control manner is implemented on theexhaust energy; a low-speed turbine motor and an air inlet compressor form a turbine for pressurizing; when the electronic control unit judges that the car-mounted engine is located in an intermediate-speed intermediate-load work condition, an intermediate-speed intermediate-load control manner is implemented on the exhaust energy; an intermediate-speed turbine motor and the air inlet compressor form a turbine for pressurizing; and when the electronic control unit judges that the car-mounted engine is located in a high-speed high-load work condition, a high-speed high-load control manner is implemented on the exhaust energy, and a high-speed turbine motor and the air inlet compressor form a turbine for pressurizing. According to the method, multistage joint cascading recovery is carried out on the energy in car-mounted engine exhaust.

Description

technical field [0001] The invention relates to a method for recovering the exhaust energy of a vehicle-mounted engine, in particular to a method for controlling the multi-stage joint recovery of the exhaust energy of a vehicle-mounted engine. Background technique [0002] With the sustained and steady development of the economy, urban traffic vehicles and cars have increased rapidly, and the pollution of various motor vehicle exhaust emissions to the environment has become increasingly serious. The air pollution in many large cities in China has shifted from coal-burning pollution to coal-burning and machine Motor vehicle mixed pollution, and motor vehicle exhaust pollutants and carcinogens have caused serious harm to the environment and people's health. Although motor vehicle exhaust pollution has attracted widespread attention in the society, the state has formulated more stringent regulations, but various measures need to be further strengthened and implemented, and the ...

AI Technical Summary

Problems solved by technology

CN201510064451 Chinese invention patent An engine energy recovery system, which makes full use of the heat of the engine, which is the maximum energy of the engine, by setting an auxiliary supercharging device, and reuses it in the power recovery and utilization of the engine, but this method is also a single recovery extra kinetic energy

To sum up, these existing technologies only recover part of the exhaust energy of the vehicle-mounted engine, and do not comprehensively recover the energy of the vehicle-mounted engine, nor do they fully consider the distribution of exhaust energy, and do not recover exhaust energy to the maximum extent. Qi energy

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