System and method of controlling air compressor motor for fuel cell vehicle

A fuel cell vehicle and air compressor technology, which is applied to fuel cells, fuel cell additives, power system fuel cells, etc., can solve problems such as limited acceleration and vehicle bumps, and achieve the effect of preventing instantaneous voltage drop.

Pending Publication Date: 2020-05-08
HYUNDAI MOTOR CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, the vehicle may jerk and the acceleration may be limited

Method used

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  • System and method of controlling air compressor motor for fuel cell vehicle
  • System and method of controlling air compressor motor for fuel cell vehicle
  • System and method of controlling air compressor motor for fuel cell vehicle

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Embodiment Construction

[0024] It should be understood that the term "vehicle" or "vehicular" or other similar terms as used herein includes motor vehicles in general, such as passenger cars including sport utility vehicles (SUVs), buses, trucks, various commercial vehicles, including Boats and boats of all kinds, aircraft, etc., and include hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen powered vehicles, and other alternative fuel vehicles (eg, fuels derived from sources other than petroleum). As referred to herein, a hybrid vehicle is a vehicle that has two or more sources of power, such as a gasoline-powered vehicle and an electric vehicle.

[0025] Although exemplary embodiments are described as using a plurality of units to perform the exemplary process, it should be understood that the exemplary process may also be performed by one or more modules. Additionally, it should be understood that the term controller / control unit refers to a hardware device including a ...

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Abstract

A method of controlling an air compressor motor for a fuel cell vehicle is provided. The method includes calculating a counter electromotive force constant of the air compressor motor based on a voltage and a current of the air compressor motor for the fuel cell vehicle supplying air to a fuel cell stack and a rotation speed of the air compressor motor. The method additionally includes determiningwhether a permanent magnet of the air compressor motor is demagnetized based on a result of comparison between the calculated counter electromotive force constant value and a pre-set counter electromotive force constant design value.

Description

technical field [0001] The present invention relates to a system and method of controlling an air compressor motor of a fuel cell vehicle and a system and method of controlling the operation of a fuel cell vehicle using the system and method, and more particularly, to a method of controlling an air compressor motor of a fuel cell vehicle And a method of controlling operation of a fuel cell vehicle using the method capable of diagnosing irreversible demagnetization of a permanent magnet in an air compressor motor of the fuel cell vehicle and stably operating the air compressor motor and the fuel cell vehicle based on the diagnostic result. Background technique [0002] An air compressor for supplying air to a fuel cell stack in a fuel cell vehicle generates a high-pressure air flow by driving an electric motor. Permanent magnets, one of the main components of air compressor motors, undergo irreversible demagnetization, where the magnetic flux decreases over time. Therefore, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/30
CPCB60L58/30B60L1/003B60L50/75B60L58/40Y02T90/40Y02T10/70Y02E60/50H01M8/04089H01M8/04201H01M8/04567H01M8/04597H01M8/04313H01M8/04686H01M8/04395H01M8/0494H01M2250/20H01M16/006Y02E60/10F04B49/065F04B2203/0201F04B2203/0202F04B2203/0209H01M8/04111B60L50/70
Inventor 金成道康敏绣柳昌锡李东勋
Owner HYUNDAI MOTOR CO LTD
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