Vehicle Auto Brake Test Certification Tuv Emc Testing Authentication service

GLOBAL UNITED TECHNOLOGY SERVICER CO., LTD

GTS professional auto parts auto brake testing certification third-party authoritative laboratory

Automotive materials and parts

Provide various kinds of automotive materials and parts inspection certification
Automobile is an electromechanical hybrid system composed of tens of thousands of parts. Auto parts inspection can help auto manufacturers and parts manufacturers get detailed reports on the quality of parts, so as to improve the performance of parts.Testing covers environmental reliability testing of auto parts,Electrical performance test, functional test, EMC test,Material testing, green environmental testing and chemical compliance services.


Product range

Auto parts are mainly composed of eight parts: auto steering parts, auto walking parts, auto electrical instrument parts, auto lamps, auto modification parts, engine parts, transmission parts, and brake parts.
1. Automotive steering components: kingpin, steering machine, steering knuckle, ball pin, etc.
2. Car walking parts: rear axle, air suspension system, balance block, steel plate, etc.;
3. Automotive electrical instrumentation components: sensors, automotive lamps, spark plugs, batteries, etc.
4. Automobile lamps: decorative lights, fog lights, ceiling lights, headlights, searchlights, etc.
5. Auto modification parts: tire pump, car top box, car top rack, electric winch, etc.
6. Engine parts: engine, engine assembly, throttle body, cylinder block, tension wheel, etc.
7. Transmission system parts: clutch, transmission, variable speed shift lever assembly, reducer, magnetic materials, etc.
8. Brake parts: brake master pump, brake sub pump, brake assembly, brake pedal assembly, compressor, brake disc, brake drum, etc.

Auto parts testing projects are mainly composed of metal parts testing projects and polymer parts testing projects.
Main test items of auto metal parts are:
1. Mechanical performance test: tensile test, bending test, hardness test, impact test, etc.;
2. Composition analysis: qualitative and quantitative composition analysis, trace element analysis, etc.;
3. Structure analysis: metallographic analysis, nondestructive testing, coating analysis, etc.;
4. Dimension measurement: coordinate measurement, projector measurement, precision caliper measurement, etc.

The main testing items of automotive polymer components include:
1. Physical performance test: tensile test (including normal temperature and high and low temperature), bending test (including normal temperature and high and low temperature), impact test (including normal temperature and high and low temperature), hardness, fog, tearing strength, etc.;
2. Thermal performance test: glass transition temperature, melting index, Veka temperature softening point, low temperature embrittlement temperature, melting point, thermal expansion coefficient, thermal conductivity coefficient, etc.;
3 rubber and plastic electrical performance test: surface resistance, dielectric constant, dielectric loss, dielectric strength, volume resistivity, voltage resistance, breakdown voltage, etc.;
4. Combustion performance test: vertical combustion test, horizontal combustion test, 45° Angle combustion test, FFVSS 302, ISO 3975 and other standards;
5. Qualitative analysis of material composition: Fourier infrared spectroscopy, etc.


Routine test items
1, safety project:
Input current test, label to wipe test, energy level test, SELV test, current limiting circuit testing (LCC), limited power test (LPS), grounding continuity test, temperature and humidity (tide) test, drop, impact and other mechanical stress tests, the ball pressure test and normal temperature test, contact voltage, electric current test, insulation test voltage, abnormal test, yuan A fault testing, etc.
2, the EMC test project:
Conduction, radiation, harmonic, voltage fluctuation and flicker, electrostatic, RS, EFT, surge, CS, power frequency magnetic field, such as voltage sag.
Environmental reliability Testing
High and low temperature resistance test, heat and humidity resistance, high and low temperature impact, high and low temperature alternating, mechanical vibration, mechanical impact, low pressure (vacuum) test, IP grade, dustproof water release test, gas corrosion (single/multiple), salt spray corrosion test (neutral, acid, compound), etc.
Class specific tests
Battery charging and discharging test, impact test, impact test, drop test, ROhs testing, REACH, halogen detection, temperature and humidity environment test, failure analysis, components selection, pressure test, light aging test, sand and dust test, get wet in the rain test, vibration test, high speed test, mechanical shock test, biological environment test, salt spray test and reliable integrated environment Sex test, simulated packaging and transportation test, gas corrosion test, slice test, etc.
Energy efficiency test
Energy saving testing, energy efficiency testing
Electrical performance testing
Operating voltage, operating current, speed range, power, conductivity, dielectric constant, dielectric loss, field strength (breakdown voltage), etc

Automobile brake performance inspection
In order to meet the braking requirements of the driving state, improve the braking stability, reduce the rear axle wheel sideslip and the car tail swing during braking, the front axle braking force generally accounts for about 50 ~ 70%, and the rear axle braking force design is relatively less. In addition also make full use of inertia force when the car braking, leading to the vehicle center of gravity forward axle weight changes, the characteristics of the front axle braking force can be up to 140% of the static axle load, the braking characteristics reflected only when road test, on the roller reaction type test bench, due to the limitation of device structure and test method, the front axle maximum braking force cannot be measured.

Brake inspection standard
1. Braking force requirements: the ratio of front axle braking force and front axle load ≥ 60%; The ratio of total braking force and vehicle weight, no load ≥ 60%, full load ≥ 50%; The ratio of rear axle braking force to rear axle load of passenger cars and trucks with a total mass of less than 3500kg is ≥ 20%.
2. Braking balance requirements: in the whole process of braking force growth measured at the same time in the left and right wheel braking force difference of the maximum, and the whole process measured in the shaft left and right wheel braking force of the largest ratio, the front shaft should not be more than 20%; For the rear shaft (and other shafts) in the shaft brake force is not less than 60% of the shaft load, should not be greater than 24%; When THE BRAKING FORCE OF THE REAR SHAFT (and OTHER SHAFTS) is less than 60% OF THE axle load, THE MAXIMUM difference OF THE braking force between the LEFT AND RIGHT wheels measured simultaneously during the whole process of braking force growth should not be greater than 8% of the axle load.
3. Coordination time requirements: GB7258-2004 provisions: the use of hydraulic brake system of the vehicle shall not be greater than 0.35S; For the vehicle using pneumatic brake system shall not be greater than 0.60s; The braking coordination time of automobile train, articulated bus and articulated trolleybus should not be more than 0.80s. GB18565 provisions: the use of hydraulic braking system of the vehicle shall not be greater than 0.35S; Not more than 0.56s for the vehicle with pneumatic brake system.
4. Resistance requirement: The resistance of each wheel of the vehicle shall not be greater than 5% of the axle load when the braking force is tested.

5. Parking braking force requirements: the total parking braking force should not be less than 20% of the vehicle weight in the test state; This value is 15% for vehicles whose total mass is less than 1.2 times the mass of the assembly.
6. Brake complete release time requirements: vehicle brake complete release time (from the release of the brake pedal to the time required for brake elimination) should not be greater than 0.80s.



2. Certification services
CCC, CQC, CQM, CB, CE, GS, EMF, ErP, UL, ETL, FCC, CEC, DOE, SAA, RCM
We are committed to the testing and international certification of information technology, audio and video, home appliances, lamps, wireless communications, power tools and machinery, electronic instruments, medical instruments and other types of products. We have obtained the qualification recognition of UL, Intertek, CSA, MET, TUV-RH, TUV-SUD, SGS, NEMKO, FCC, IC and many other international certification bodies. We can provide customers with professional and authoritative one-stop testing and certification services.
The test report issued by Global Zhongyi has legal effect and can be used in scenarios such as the entry of supermarkets, product appeals, anti-malicious rights protection, and auctions (appeals and auctions must meet Party A's testing requirements).

GTS company has over 20 years professional experience in lab testing and global certifications service.

We could be your best testing outsource, if you have products selling to China, we can help you finish the CCC/SRRC or other certifications in the shortest time with good prices.

If you have products applying for American FCC ID or other certifications, we can provide the best services for you with very competitive prices what can make you save much cost and time, also help you get all global testing and certifications successfully and highly efficiently.

As a standardized third-party testing laboratory, GTS has been authorized by major certification bodies in Europe, the United States and Asia.

In 2012, GTS officially became the laboratory recognized by China National Committee for Conformity Assessment and Accreditation (CNAS Registration number: L5775), and NALVP Accredited Laboratory, LabCode: 600179-0.

Our lab testing products include commercial and household appliances, audio and video products, lamps and lanterns, toys, machinery and power tools, etc.

Service projects include FCC, CE, CB, UL, GS, CCC, SRRC, CSA, ETL, RoHS, PAHs, SASO, REACH, KC, PSE and other multinational testing and certification, as well as national energy efficiency testing services.