Electronic control system and method based on thermoelectric power generation for automotive exhaust energy recycling equipment

Abstract

The invention provides an electronic control system and method based on thermoelectric power generation for automotive exhaust energy recycling equipment. The electronic control system comprises a control unit, a temperature sensor, a pressure sensor and a step motor; the temperature sensor is used for detecting temperature information of automotive exhaust at a gas inlet of the automotive exhaustenergy recycling equipment, and transmitting the temperature information to the control unit; the pressure sensor is used for detecting pressure information of exhaust at the gas inlet and gas outletof the automotive exhaust energy recycling equipment, and transmitting the pressure information to the control unit; the step motor is mounted at the gas inlet of the automotive exhaust energy recycling equipment and is connected with a retaining plate of the automotive exhaust energy recycling equipment; the control unit adds the received temperature information and pressure information and N position angles of the step motor into a neural network of an internal storage, and performs calculating to obtain a motor position angle at which the automotive exhaust energy recycling equipment has maximum generation power; the control unit controls the step motor to drive the retaining plate to rotate to an opening position where the generation power is maximum; therefore, power-generating efficiency of the automotive exhaust energy recycling equipment is improved.

Description

technical field [0001] The invention belongs to the field of automobile exhaust energy recovery, and in particular relates to an electric control system and method of an automobile exhaust energy recovery device based on temperature difference power generation. Background technique [0002] At present, with the continuous improvement of environmental protection and energy saving awareness, the state and enterprises are vigorously promoting and developing energy saving and emission reduction technologies. However, the fuel efficiency of internal combustion engine vehicles is only 40%, and about 30% of the energy is lost in the form of heat. In recent years, with the maturity of thermoelectric power generation technology, enterprises and scholars have successively proposed some thermoelectric exhaust energy recovery devices installed at automobile exhaust pipes. The Chinese patent with the application number 201210227087.7 ​​discloses a protective shell for thermoelectric pow...

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Problems solved by technology

The Chinese patent with the application number 201210227087.7 ​​discloses a protective shell for thermoelectric power generation modules and a temperature difference exhaust gas energy recovery device for automobile exhaust pipes. This patent does not design a control and adjustment device, which may easily cause overheating of the thermoelectric power generation modules or low power generation efficiency

The Chinese patent with the application number 201710545802.4 discloses a temperature-difference exhaust gas energy recovery device with the function of diversion control of automobile exhaust and its diversion control method. Although the patent proposes diversion control and basic control methods for exhaust gas, the fundamental purpose of its control It is to prevent the temperature from being too high or the back pressure of the device from affecting the normal operation of the temperature difference exhaust energy recovery device or engine, and the working efficiency of the exhaust energy recovery device cannot be significantly improved.

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