GB/T 25319-2010Fuel cell power system used for motor vehicles - Technical specification (English PDF)

1.1 General

This Standard specifies the terms and symbols, requirements, test methods, inspection rules and marks, descriptions and technical documentation for automotive proton exchange membrane fuel cell power generation system.

This Standard is applicable to the automotive proton exchange membrane fuel cell power generation system (hereinafter referred to as power generation system).

1.2 System boundary

The system boundary is shown as Figure 1. In the figure, the part within the thick solid frame is the power generation system. The access arrows relative to the box refer to the input and output of the power generation system.

3.1 Terms and definitions

The terms and definitions specified in GB/T 2900.18, GB 3836.1, GB 4943 and GB/T 20042.1 and the following ones apply to this document.

3.1.10 Fuel consumption

the amount of fuel consumed by the power generation system for a specified period of time under specified conditions, in kg/h

3.1.11 Fuel consumption rate

the amount of fuel consumed by the power generation system in the unit time and unit power, in g/(kW·h)

3.1.12 Idle start-up time

the time of which it takes for the power generation system to start from standby to idle conditions, in s

3.1.13 Fuel utilization

the ratio of the actual fuel consumption of the power generation system to the amount of fuel of input power generation system, in %

3.2 Symbol and status

Symbol Meaning Unit

4.1 Normal use conditions

4.2 Safety requirements

4.2.1 General safety

The parts which use flammable substances, pressurized media, electrical energy, mechanical energy, etc. in the power generation system should meet requirements of relevant standards. The main parts include.

4.2.2 Safety of fuel supply and processing subsystem of power

generation system

4.2.4 Safety monitoring, security subsystems

Subsystems such as fuel supply subsystem (excluding fuel storage container), oxidant supply subsystem, water/heat management subsystem, control subsystem in power generation system should be connected with safety monitoring, security subsystems. Safety monitoring, security subsystems automatically control the safety of each subsystems, and shall, according to changes in the operation of power generation system, provide corresponding sound, light reminder and auto on-off control, so as to ensure the normal and safe operation of power generation system.

4.3 Fuel supply

The fuel supplied to the power generation system shall comply with the relevant specific fuel cell power generation system standards and requirements.

Impurities it contains which may have harmful effects on the power generation system should be within the manufacturer's specified scope.

4.5 Oxidant treatment subsystem

The oxidant treatment subsystem which includes filter, piping, processing device, sensor, valve, etc. shall comply with corresponding standards. The filter in the oxidizer supply subsystem is only for the treatment of particle grade dust.

4.6 Thermal management subsystem

The thermal management subsystem which includes radiator and matching fan, pipe, circulating fluid pump, valve, sensor, cooling fluid storage box and replenishment box, etc. shall comply with corresponding standards.

4.10 Start time

When power generation system carries out start test according to 5.2, the time required from start-up to idle conditions should be in accordance with the manufacturer's provisions.

4.13 Anti-vibration reliability

The power generation system shall have certain ability to resist vibration, shall comply with GB/Z 18333.1-2001, shall ensure that the impact vibration generated during the normal use shall not damage each part of power generation system, shall ensure the normal operation of the whole power generation system.

5.1 Safety test

5.1.1 Gas leakage test

Close fuel chamber, oxidant chamber and cooling fluid chamber outlets of fuel cell stack in power generation system. Only through a fuel pipe inlet on the stacking board, connect with pressure gauge and flowmeter. Make inert gas (nitrogen, argon, etc.)

5.1.2 Insulation strength test

Use megger to measure the current motherboard and power generation system package resistance respectively led by fuel cell stack positive and negative electrodes of power generation system. The insulation resistance of positive and negative electrodes to vehicle body shall exceed 100 ohm/V.

5.2 Start characteristic test

The test shall be carried out according to the provisions of GB/T 24554-2009 and manufacturer's provisions.

5.3 Work conditions test

Under each conditions such as idle conditions, partially loaded conditions, rated conditions, overload conditions, respectively measure fuel consumption, battery stack output current and voltage, net output current and voltage of power generation system. Measure the power consumption of auxiliary support

5.4 Dynamic response characteristic test

Evaluate the dynamic loading response and loading impact capability of power generation system. It shall mainly carry out the dynamic response time test and the dynamic cyclic loading test.

5.4.1 Dynamic response time test

7.1 Product nameplate

Power generation system product nameplate identification should contain at least the following information.

7.2 Marks

If the connection of the power generation system due to the wrong position shall lead to hazards, these connections should be given a clear sign. The positive and negative connections should also be indicated.

7.3 Warning sign

Warning sign shall at least contain.

7.4 Technical documents

The product manual must have description on system integration, installation, operation and maintenance of power generation system, including installation manual, operating manual, maintenance manual, and spare parts lists, etc.

7.4.3 Operation manual

The technical documentation shall contain an operating manual which describes in details the program of correct start and use of power generation system, in which the precautions should be given to safety measures and possible incorrect operations.

7.4.4 Maintenance manual

The technical documentation should contain a maintenance manual. The maintenance manual should provide a detailed description of the commissioning, maintenance and preventive inspection, repair requirements and time intervals. It shall specify the confirmation method of the correct operation (such as software testing procedures). […]