This standard specifies the durability running test method for motor vehicles.
This standard is applicable to batch-manufactured motor vehicles (mining dump trucks may make reference to this Standard).
2 Normative References
GB/T 12534 Motor Vehicles-General Rules of Road-Test Method
GB/T 12545 Motor vehicles-Fuel Consumption-Test Method
GB/T 12548 Motor vehicles-Speedometer and Odometer-Calibration Method
GB/T 12678 Motor vehicles-Durability Running-Test Method
JB 3743 Performance Test Code for Road Vehicle Engines
3 Terms
3.1 Motor vehicle durability
It is referred to capacity of the motor vehicles to complete their functions when specific technical or economic indicator limit is met under the specified operating and maintenance conditions.
3.2 Degree of motor vehicle durability
It is referred to the probability, under specified operating and maintenance conditions, that motor vehicles reach the first overhaul mileage without durable damage
3.3 Damage of motor vehicle durability
It is referred to abnormal frequent fatigue damage of motor vehicle components; excess abrasion; material degradation; degradation of basic mechanical design feature; exceeding specified limits; increasing maintenance expense; emergence of uneconomical or unsafe elements caused by further using. Consequently, a replacement of principal assembly or overhaul of motor vehicle is needed.
1 Subject Content and Application Scope 2 Normative References 3 Terms 4 Test Conditions 5 Test Vehicles 6 Test Items and Test Methods 7 The processing of test data and statistics gathering 8 Test Report Annex A (Informative) Examples for Moderate Distribution Free Method ---Motor Vehicle Durability Test
1 Subject Content and Application Scope
This standard specifies the durability running test method for motor vehicles.
This standard is applicable to batch-manufactured motor vehicles (mining dump trucks may make reference to this Standard).
2 Normative References
GB/T 12534 Motor Vehicles-General Rules of Road-Test Method
GB/T 12545 Motor vehicles-Fuel Consumption-Test Method
GB/T 12548 Motor vehicles-Speedometer and Odometer-Calibration Method
GB/T 12678 Motor vehicles-Durability Running-Test Method
JB 3743 Performance Test Code for Road Vehicle Engines
3 Terms
3.1 Motor vehicle durability
It is referred to capacity of the motor vehicles to complete their functions when specific technical or economic indicator limit is met under the specified operating and maintenance conditions.
3.2 Degree of motor vehicle durability
It is referred to the probability, under specified operating and maintenance conditions, that motor vehicles reach the first overhaul mileage without durable damage
3.3 Damage of motor vehicle durability
It is referred to abnormal frequent fatigue damage of motor vehicle components; excess abrasion; material degradation; degradation of basic mechanical design feature; exceeding specified limits; increasing maintenance expense; emergence of uneconomical or unsafe elements caused by further using. Consequently, a replacement of principal assembly or overhaul of motor vehicle is needed.
Contents of GB/T 12679-1990
1 Subject Content and Application Scope
2 Normative References
3 Terms
4 Test Conditions
5 Test Vehicles
6 Test Items and Test Methods
7 The processing of test data and statistics gathering
8 Test Report
Annex A (Informative) Examples for Moderate Distribution Free Method ---Motor Vehicle Durability Test
