Power generation system of hybrid electric vehicle based on methanol reforming

By optimizing energy flow through methanol reforming for hydrogen production and a pre-combustion chamber system, the problem of low power generation efficiency in hybrid electric vehicles when methanol is used as a substitute fuel has been solved, achieving a highly efficient power generation process.

CN121947142APending Publication Date: 2026-05-01INNER MONGOLIA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INNER MONGOLIA UNIV OF TECH
Filing Date
2026-02-03
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

When methanol is used as an alternative fuel in traditional hybrid electric vehicles, the power generation efficiency of the power generation system is low, and the low volumetric energy density and high latent heat of vaporization of methanol make cold start difficult.

Method used

The system employs a methanol reforming hydrogen production subsystem, a pre-combustion chamber subsystem, and a combustion power generation system. Hydrogen is produced by methanol reforming and pre-combusted in the pre-combustion chamber. The pre-combustion flame ignites the methanol, driving an internal combustion engine to generate electricity. An energy management subsystem optimizes energy flow.

Benefits of technology

It improves the power generation efficiency of hybrid vehicles, solves the problems of cold start and low calorific value of methanol, and achieves a highly efficient power generation process.

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Abstract

The invention discloses a power generation system of a hybrid electric vehicle based on methanol reforming, and relates to the technical field of internal combustion engines, in the power generation system of the hybrid electric vehicle based on methanol reforming, a methanol tank is used for storing methanol; inputting methanol to the internal combustion engine and the pre-chamber subsystem; the reformer is used for converting input electric energy into heat energy and reforming methanol to obtain reformed gas; the reformed gas storage tank is used for storing reformed gas; reformed gas is input into the pre-combustion chamber subsystem; the pre-combustion chamber subsystem is used for pre-combusting input methanol and reformed gas to obtain pre-combustion flames; the internal combustion engine is used for igniting input methanol through pre-combustion flames, and the methanol combusts to generate high-temperature fuel gas and kinetic energy. The generator is used for generating power under the driving of kinetic energy to generate electric energy; the reformer is also used for recovering waste heat of the high-temperature fuel gas; the power battery is used for storing electric energy; electric energy is input to the reformer. The power generation efficiency of the power generation system of the hybrid electric vehicle is improved.
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Citation Information

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