Tail gas exhaust reduction generating system of engine of hybrid electric vehicle (HEV)

Abstract

The invention relates to a generating system, in particular to a system by utilizing the tail gas of an engine of a hybrid electric vehicle (HEV) to generate electricity. A gas exhausting branch pipe of the engine is connected with a silencer through a connecting pipe; the connecting pipe is provided with a thermoelectric generator; the thermoelectric generator is provided with a gas intake pipe and a gas exhaust pipe; the gas intake pipe and the gas exhaust pipe are respectively communicated with the connecting pipe; the thermoelectric generator is provided with a channel for exhausting the tail gas of the engine internally; the inlet and the outlet of the channel are respectively communicated with the gas intake pipe and the gas exhaust pipe; the thermoelectric generator is provided with a plurality of thermoelectric generating modules; the thermoelectric generating modules are connected with the controller; and the output end of each thermoelectric module is connected with a battery. From the technical scheme, according to the invention, the thermoelectric generator is arranged on the connecting pipe, the thermoelectric generator absorbs heat from the tail gas of the generator,thus the heat energy is converted into electric energy and is transferred to the battery of the engine, the battery holds ample electric quantity all the time, and simultaneously because the thermoelectric generator absorbs partial heat quantity of the tail gas, the thermoelectric generator plays a role of saving energy and reducing exhaust.

Description

technical field [0001] The invention relates to a power generation system, in particular to a system for generating power by using exhaust gas from a hybrid vehicle engine. Background technique [0002] A hybrid vehicle is a vehicle that is equipped with two power sources at the same time, that is, a thermal power source (generated by a traditional gasoline engine or a diesel engine) and an electric power source (battery and electric motor). By using electric motors on hybrid electric vehicles, the power system can be flexibly adjusted according to the actual operating conditions of the vehicle, and the engine can be kept working in the area with the best overall performance, thereby reducing fuel consumption and emissions. These two power sources are converted through the speed change mechanism. When the load is small, the battery drives the electric motor to work, and when the load is heavy, it is automatically converted to the engine. For example, when the vehicle starts,...

AI Technical Summary

Problems solved by technology

But at present, the battery of the electric motor of the hybrid electric vehicle needs to be charged in time. If the battery does not have enough power, the driving distance of the hybrid electric vehicle will be limited. After the battery is exhausted, if there is no charging station nearby, it must be fully relied on When the engine is working, the energy-saving and emission-reduction devices that have been set will also lose their effect. Even if there is a charging station, the charging time will be long and the efficiency will be low. The storage battery always has enough power to become the most difficult problem that needs to be solved in time

Images