汽车空调系统法规对比 欧标 & 美标 & 国标 Global Auto HVAC Regulation Comparison ECE & FMVSS & GB

A
Area C same as GB and ECE Area A
B
ቤተ መጻሕፍቲ ባይዱ
Area A same as GB&ECE B
A' Test condition -18ºC±3ºC, Spray gun should meet following requirements: a) Nozzle is of 1.7mm diameter; b) Working pressure is 350kPa±20kPa; c) Liquid flow rate is 0.395mL/min; d) Produce a jet cone of 300mm±50mm diameter at a distance 200mm from the nozzle. -8 ± 2°C or -18 ± 3°C. A spray gun having a nozzle of 1,7 mm diameter and a liquid flowrate of 0,395 l/min, and capable of producing a fan pattern of 300 mm diameter on the glazed surface at a distance 200 mm from that surface, may be used to satisfy the requirements of 6.1.5. Any other device by which the requirements can be satisfied shall also be permitted.
3.Test method of Windscreen demisting
3.Test method of Windscreen demisting
Steam generator used for test (see Figure 4) should meet following requirements: a) Water capacity of container should be no less than 2.25L; b) Under environmental temperature of -3±1ºC, heat loss at boiling point should be no more than 75W; c) When the blast blower is under a static pressure of 50Pa, there should be delivery capacity of 4.2m3/h ~6.0m3/h; d) There should be 6 air vents of diameter 6.3mm on the top of steam generator; e) Steam volume output of generator is n x (70g/h±5g/h) under condition of 3±1ºC. Note: n refers to number of vehicle seats specified by vehicle manufacturer. Brass pipe with wall thickness of 0.4mm
Test facility
Defrost Test procedure
Test Procedure
soaking not less than 10 hours ate the test temperature
soaking not less than 10 hours ate the test temperature
EEC 78/317
FMVSS 103(SAE J902A)/TP103-3
3
20min after the start of the test, area A must be 80% defrosted;
20 minutes after the start of the test period, the area defined in 2.2 of Annex IV (area A) must be 80% defrosted; 25 minutes after the start of the test period, the defrosted area of the windscreen on the passenger side shall be comparable to that specified in 5.1.4.1 for the driver's side; 25 minutes, A' 80% defrosted. 40 minutes after the start of the test period, the area defined in 2.3 of Annex IV (area B) shall be 95% defrosted.
After 20 minutes, area C 80% defrosted
25min after the start of the test, area A’ must be 80% defrosted; 1.Windscreen defrosting requirements
After 25 minutes, area C'(passanger side) 80% defrosted
soaking not less than 10 hours ate the test temperature
Defrost Test procedure water volume equaling 0.044 g/cm2 by area value of windscreen shall be applied evenly over the outside surface of the windscreen,the spray nozzle shall be held perpendicular to and at a distance of 200mm~250mm from the glazed surface. After the ice layer has been formed on the windscreen, the vehicle shall be kept in the cold chamber for 30min~ 40min Following the exposure period prescribed in 6.1.4, an even layer of ice of 0,044 g/cm2 shall be applied over the entire outside surface of the windscreen by means of a water spray gun working at 3,5 ± 0,2 bar operating pressure. With specified ambient temperature, the windshield shall be sprayed with an average of 0.046 mL of water/cm2 ± 0.005 mL of water/cm2 of glass area applied by means of a spray gun with 345 kPa ± 34.5 kPa air pressure at the gun while spraying to form an even test coating of ice over the entire glass surface. After the ice has been formed on the windscreen, Upon completion of the icing process, an the vehicle shall be kept in the cold additional soak period of not less than 30 min, chamber for not less than 30 minutes and not and not more than 40 min, shall have elapsed more than 40 minutes. before start of the test.
2.Windscreen demisting requirements
The test shall be carried out in an environmental not find in FMWSS 103 chamber large enough to take the complete vehicle and capable of producing and maintaining a test temperature of -3 ± 1°C throughout the test period.
40min after the start of the test, area B must be 95% defrosted.
40min after the start of the test, total area A must be 95% defrosted.
Area A(C) A' (A) B Define
C' -18ºC±3ºC, Stainless steel spray gun for applying water to the windshield with the following characteristics: a.Fluid-water b.Liquid nozzle size diameter-1.7mm c.Operating gun gage pressure-345kPa d.airflow rate-0.0056m3/s pattern at 200 mm from surface-300mm±50mm