Exhaust waste heat returning system of lithium methoxide battery series-parallel type hybrid electric vehicle

Abstract

The invention discloses an exhaust waste heat returning system of a lithium methoxide battery series-parallel type hybrid electric vehicle. The exhaust waste heat returning system is arranged on the lithium methoxide battery series-parallel type hybrid electric vehicle so as to recycle the tail gas waste heat of a methanol engine. The methanol engine connected with a gas path of a methanol reformed gas device (8) and a lithium battery (2) provide power for the hybrid electric vehicle, and the methanol reformed gas device (8) is provided with an electric heater (9). The exhaust waste heat returning system is characterized in that the power exhaust waste heat returning system is composed of a controller, a valve system, corresponding pipelines and a temperature sensor, wherein the valve system and the corresponding pipelines are controlled by the controller, and the temperature sensor provides temperature information for the controller (1); a tail gas opening of the engine (5) is connected with a gas inlet end gas path of a first reversing valve (4); and the gas outlet end of the first reversing valve (4) is provided with three branches, namely, a first branch emptied through a silencer (11), a second branch for heating an outer cavity of the lithium battery (2) and a third branch for providing auxiliary heat for the methanol reformed gas device (8). According to the tail gas heat recycling system, exhaust waste heat can be fully utilized so that the aims of saving non-renewable energy resources and protecting the environment can be achieved, and the system is suitable for various loaded hybrid electric vehicles.

Description

technical field [0001] The invention relates to a hybrid electric vehicle, in particular to the technical field of an exhaust waste heat utilization device of a methanol-lithium battery parallel-connected hybrid electric vehicle. Background technique [0002] As the main energy used by automobiles at present, gasoline and diesel are petroleum products. On the one hand, automobile exhaust has a greater impact on the environment; on the other hand, petroleum resources are non-renewable energy sources and are facing depletion. According to relevant information, the proven oil resources can only be exploited for more than 40 years at the current speed, and natural gas can only be exploited for more than 60 years. Therefore, there is an urgent need for automobiles to find alternative energy sources while reducing environmental pollution. [0003] As the main energy vehicle in the 21st century, electric vehicles are favored by the industry because electric energy belongs to secon...

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