Operating load control for fuel cell power system in fuel cell vehicle

一种燃料电池车辆、燃料电池的技术，应用在电池/燃料电池控制装置、燃料电池、燃料电池助剂等方向，能够解决成本高、燃料消耗减少等问题

Inactive Publication Date: 2005-12-21
NISSAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, under such control, for normal vehicle operation mode, the fuel cell electric system is generally operated more in the low-efficiency range, and as described later, the fuel consumption is reduced
Furthermore, in order to meet the wide electric load range of 0-100%, fast response and high accuracy, high-resolution sensors and flow control valves are required, the cost is high and further control is required

Method used

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  • Operating load control for fuel cell power system in fuel cell vehicle
  • Operating load control for fuel cell power system in fuel cell vehicle
  • Operating load control for fuel cell power system in fuel cell vehicle

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Embodiment Construction

[0023] Refer to the attached figure 1 , figure 1 The structure of the fuel cell vehicle related to the present invention is shown. The fuel cell power system 100 enclosed by the dashed line in the figure includes: a reforming furnace 1, a water tank 2, a fuel tank 3, a fuel cell 4, and a compressor 5.

[0024] The reformer 1 is supplied with water and methanol from the water tank 2 and the fuel tank 3, and the reformer 1 generates a reformed gas containing hydrogen from the steam reforming. Steam reforming is an endothermic reaction. The reformed gas is supplied to the anode of the fuel cell 4. Hydrocarbon fuels other than methanol such as gasoline can also be used as fuel.

[0025] If the reforming catalyst injected into the reformer 1 does not reach the activation temperature, for example, when the system is just started, the air as the oxidant is supplied to the reformer 1 from the compressor 5, and the reforming caused by partial oxidation of methanol can also be performed. ...

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Abstract

The present invention relates to workload control for fuel cell power systems in fuel cell vehicles. A fuel cell vehicle drives an electric motor (9) with electricity from a fuel cell power system (100) including a fuel cell (4) that generates electricity from hydrogen and oxygen. The controller (10) calculates the electric load requirement required for the operation of the vehicle. When the value is lower than a predetermined load, a constant load operation of the fuel cell power system (100) is performed; when the value exceeds the predetermined load value, the fuel cell power system (100) is operated at a load corresponding to the electric load demand. Thereby, requirements for resolution and accuracy of various sensors or flow control valves installed in the fuel cell power system can be reduced, cost can be reduced, and fuel cost performance can be improved by maintaining an efficient operating state.

Description

Technical field [0001] The present invention relates to the workload control of a fuel cell power system in a fuel cell vehicle. Background technique [0002] In the fuel cell power system of a fuel cell vehicle, the electrical load changes rapidly over time with a range of 0-100%, which is the main difference from a stationary fuel cell power supply device. Although the workload of the fuel cell power system is required to be consistent with the electrical load so that the fuel cell power system provides neither more nor less power, it is difficult to keep the workload of the fuel cell power system consistent with the electrical load. In JP-A-H4-51466 published by the Japanese Patent Office in 1996, a battery is connected to the output side of the fuel cell to compensate for the delay of the fuel cell power system. When the electrical load exceeds the output of the fuel cell, the battery will compensate for the insufficient, and when the electrical load is less than the output o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/00B60L11/18H01M8/04H01M16/00
CPCH01M8/04H01M8/04626H01M8/0494H01M8/04955H01M8/04992H01M16/006H01M2250/20B60L2240/547B60L2240/549B60L58/13B60L58/40B60L58/15Y02T10/70Y02T90/40Y02E60/50Y02E60/10
Inventor 岩崎靖和
Owner NISSAN MOTOR CO LTD
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