Vehicle fuel battery air compressor testing system controlled through ECU

Abstract

The invention discloses a vehicle fuel battery air compressor testing system controlled through an ECU. The vehicle fuel battery air compressor testing system comprises a computer operation system, the ECU, a frequency converter, a motor, an air compressor and a sensor assembly. The ECU is connected with the frequency converter and the computer operation system. The frequency converter is connected with the motor. The motor is connected with the air compressor. The sensor assembly is connected with the ECU through a bus and is used for feeding back tested data signals to the ECU. The ECU analyses parameters fed back by the sensor assembly and judges whether the parameters are stable and meet the requirement or not, the rotating speed of the motor is changed, and therefore performance parameters of the air compressor under different working conditions are tested. The arrangement kinds of sensors of the vehicle fuel battery air compressor testing system are comprehensive, the arrangement positions of the sensors are reasonable, the rotating speed of the motor is increased through the ECU in a timing and staged manner, reference value is provided for model selection of the air compressor, the intelligence degree is high, model selection pertinence is high, safety is good, and measurement parameters are comprehensive.

Description

technical field [0001] The invention relates to the technical field of air compressor performance detection, in particular to an ECU-controlled fuel cell air compressor test system for vehicles. Background technique [0002] Fuel cell is a power generation device that converts chemical energy in fuel into electrical energy through electrochemical reaction. It has the characteristics of high energy efficiency and low emission. It has shown broad application prospects in many fields, especially in the field of automobiles. As an important part of the fuel cell air supply, the air compressor provides sufficient air for the fuel cell vehicle to meet the operating requirements of the fuel cell system, and its parameters are particularly important. Therefore, the air compressor needs to have the advantages of small size, light weight, good transient response, low vibration and noise, and the ability to provide continuous air with small gas pressure fluctuations, so the performanc...

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Problems solved by technology

[0003] In recent years, the country has vigorously developed new energy vehicles, and fuel cell vehicles have also made major breakthroughs in various key technologies as part of it. However, there are still few intelligent and comprehensive detection systems for various parameters of vehicle fuel cell air compressors. Especially when the fuel cell parameters are determined, it is necessary to properly select the air compressor. Improper selection will have a negative impact on the entire fuel cell system

The current test system cannot centrally process and reflect the temperature and pressure of the inlet and outlet of the air compressor, the temperature of the inlet and outlet of the cooling water, etc., with low intelligence, inaccurate measurement values, low safety performance, and vibration and noise of the air compressor. The transient response does not have a good test, and the measurement parameters are not comprehensive, so that the overall performance of the air compressor cannot be effectively evaluated

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