Fuel cell based hybrid power system for utilizing waste heat of internal combustion engine

A hybrid power system and fuel cell technology, applied in the field of vehicle hybrid power, can solve the problems of not being effectively utilized

Inactive Publication Date: 2013-04-10
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in gasoline-electric hybrid technology, nearly 30% of the fuel energy is still taken away by the exhaust of the internal combustion engine and has not been effectively utilized.

Method used

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  • Fuel cell based hybrid power system for utilizing waste heat of internal combustion engine

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Embodiment Construction

[0021] refer to figure 1 , a hybrid power system based on fuel cell waste heat utilization of internal combustion engine, including: internal combustion engine 1, internal combustion engine control unit 2, internal combustion engine exhaust temperature sensor 3, internal combustion engine exhaust pipe 4, internal combustion engine intake pipe 5, fuel reformer 6, reformed fuel control Valve 7, reformed gas purification and separation device 8, reformed fuel storage 9, gas pump 10, external hydrogen injection interface 11, reformed gas storage 12, reformed gas pressure sensor 13, reformed gas control valve 14, fuel cell 15. Accelerator pedal position sensor 16, brake pedal position sensor 17, vehicle speed sensor 18, hybrid control unit 19, clutch pedal position sensor 20, fuel cell controller 21, battery controller 22, battery 23, motor / generator control 24, electric motor / generator 25, clutch 26, transmission 27, power output shaft 28; Afterwards; Install an internal combusti...

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Abstract

The invention relates to a fuel cell based hybrid power system for utilizing the waste heat of an internal combustion engine and belongs to the technical field of vehicle hybrid power. A fuel reformer is arranged on an exhaust pipe of the internal combustion engine, fuel is reformed by using the waste heat of exhaust gas, the generated reformed hydrogen rich gas is used as the fuel of a fuel cell, and electric energy which is generated by the fuel cell is stored in a storage battery, so the waste heat of the exhaust gas of the internal combustion engine can be recovered; meanwhile, a motor or a generator is arranged at an output shaft end of the internal combustion engine and used for recovering the brake energy of a vehicle in a running process, and the brake energy is also stored into the storage battery; and furthermore, by the adoption of the motor or the generator, the internal combustion engine can be automatically started or stopped, and auxiliary power is supplied under specific working conditions. The system can effectively utilize the waste heat of the exhaust gas and the brake energy of the internal combustion engine, the idling condition of the internal combustion engine can be eliminated, and the fuel consumption and harmful emission of the internal combustion engine can be reduced.

Description

technical field [0001] The invention provides a vehicle hybrid power system, specifically relates to the energy utilization, conversion and storage of motor vehicle power and transmission systems, and belongs to the technical field of vehicle hybrid power. Background technique [0002] With the continuous progress of the economy, the number of automobiles has increased rapidly, and the oil consumption caused by motor vehicles has increased year by year. At the same time, the exhaust gas emitted by motor vehicles has caused serious air pollution. The shortage of fossil fuels and the deterioration of environmental pollution have prompted people to develop cleaner and more efficient sustainable energy utilization and conversion technologies. In order to reduce the energy consumption and emissions of motor vehicles, traditional methods include improving the efficiency of the internal combustion engine, improving the efficiency of the drive train, reducing the total weight of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/22B60K6/32F01N5/02
CPCY02T90/34Y02T10/16Y02T10/12Y02T90/40
Inventor 纪常伟朱永明梁晨高彬彬刘晓龙
Owner BEIJING UNIV OF TECH
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