GB/T 5378-1994 General principles for road testing of motorcycles and mopeds

This standard specifies the preparation work, general test conditions, value selection rules, and test records before the road test of motorcycles and mopeds. This standard applies to the road test of motorcycles and mopeds (except off-road vehicles and racing cars). GB/T 5378-1994 General Rules for Road Test of Motorcycles and Mopeds GB/T5378-1994 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
General rules of running test for motorcycles and mopeds
1 Subject content and scope of application
GB/T 5378--94
GB5378—85
Replaces GB4559—84
This standard specifies the preparation work before the road test of motorcycles and mopeds, general test conditions, value selection rules, and test records. This standard applies to the road test of motorcycles and mopeds (except off-road vehicles and racing cars). 2 Reference standards
GB5373 Determination of dimensions and mass parameters of motorcycles and mopeds GB5376 Verification method for speedometer indications of motorcycles and mopeds GB8170 Rules for numerical rounding
3 Preparations before the test
3.1 Inspection and adjustment of the test vehicle
3.1.1 The test vehicle must be accompanied by the operating and maintenance instructions and relevant technical documents. 3.1.2 Check the manufacturer name, brand, model, frame number, engine number and factory date of the test vehicle and record them in Appendix B (Supplementary) Table B1.
3.1.3 Check the assembly quality and integrity of each assembly, component and accessory of the test vehicle, whether there is obvious damage to each exposed component, and whether the on-board tools are complete. According to the provisions of the operating and maintenance instructions and relevant technical documents, check the tightening degree of important fasteners, the lubrication status and sealing status of each lubrication point, the working condition of the electrical system, and the working condition of each control and braking system. 3.1.4 It is allowed to make adjustments according to the requirements specified in the maintenance manual so that the test vehicle has a normal technical condition. 3.2 Running-in of the test vehicle
3.2.1 The running-in of the test vehicle should be carried out on a flat road with a small slope. 3.2.2 The running-in of the test vehicle should be carried out according to the maintenance manual and relevant technical documents. During the running-in period, the tightness and working condition of each part of the vehicle should be checked frequently. If any fault is found, it should be eliminated and adjusted in time, and the fault should be recorded in detail. The running-in mileage shall not exceed 2500km. 3.2.3 When necessary, the gasoline consumption per 100 kilometers during the running-in period shall be calculated according to the following formula. a.
When the fuel tank contains pure gasoline, calculate according to formula (1): G. 100G
When the fuel tank contains a mixture of gasoline and lubricating oil, calculate according to formula (2): b.
Where: G. - Gasoline consumption per 100 km, L/100 km; G
- Actual gasoline consumption, L,
G2- Actual fuel consumption of gasoline and lubricating oil mixture, L; Approved by the State Administration of Technical Supervision on December 27, 1994 (1)
Implemented on July 1, 1995
S-- Actual mileage, km bzxZ.net
M-- Gasoline and lubricating oil volume ratio.
3.2.4 The average technical speed is calculated according to formula (3): Where: v-
- Average technical speed, km/h;
S-- Actual total mileage, km;
Actual total driving time, h.
GB/T 5378-94
3.2.5 The details of the running-in process are recorded in Appendix B Table B1. 3.2.6 After the running-in, the test vehicle shall be maintained in accordance with the operating and maintenance instructions. 3.3 Others
3.3.1 Before the running-in, the speedometer of the test vehicle shall be calibrated in accordance with GB5376. 3.3.2 Before the performance test, the dimensions and mass parameters of the test vehicle shall be measured in accordance with GB5373 when necessary. 4 General test conditions
4.1 Test vehicle
4.1.1 The brand and mixing ratio of the fuel and lubricating oil used in the test vehicle shall comply with the provisions of the vehicle's technical documents. If necessary, the fuel, lubricating oil and mixing ratio shall be inspected before the test. The same batch of fuel and lubricating oil must be used for each performance indicator of the same test. 4.1.2 The inflation pressure of the test vehicle's tires shall comply with the provisions of the vehicle's technical documents, and the error shall not exceed ±10kPa. 4.1.3 During the performance test, no further adjustment of the test vehicle is allowed. 4.1.4 In addition to the starting performance test, before conducting other performance tests, the test vehicle should be preheated to reach the normal thermal state specified in the operating and maintenance instructions and technical documents. If there is no regulation, the test vehicle should be driven under normal driving conditions for 15 minutes in general to allow the engine and transmission system to reach the normal thermal state. 4.1.5 The loading mass of the test vehicle depends on the purpose of the test. If there are no special requirements, the two-wheeled vehicle is the specified mass of a driver. The sidecar motorcycle is the sum of the specified masses of a driver and two passengers. It is allowed to use ballast to replace passengers, but the position of the ballast should be close to the position where the passengers sit. The mass of each passenger is calculated as 75kg. The sidecar motorcycle is the factory-specified maximum loading mass specified in the technical documents of the vehicle. The masses of the above items are recorded in Appendix B Table B2. 4.2 Test equipment
Basic test equipment is as follows:
Tape measure: 3m in length, resolution 0.001m; 50m in length, resolution 0.01m;
Pole: 2m in length, painted with red and white stripes; Flag: red, white and yellow in color; Stopwatch: first level in accuracy, resolution 0.01s; Electronic timer: resolution 0.1ms
Five-wheel instrument;
Sound level meter: Type I, error not more than ±0.7dB(A); Fuel consumption measuring device: error not more than ±2%; Graduated cylinder: 500mL in capacity, resolution 5mL; Brake printer: lag time less than 0.05s; Non-spectral infrared gas analyzer: accuracy not less than ±3%, response time t≤10s, thermometer: resolution 1℃; anemometer: 0~30m/s, error not more than ±0.4m/s; n. GB/T5378-94 barometer: error not more than ±70Pa, hygrometer: error not more than ±6%; tachometer: 30~12000r/min, error not more than ±0.5%, tire pressure gauge: resolution 10kPa; slope meter: error not more than ±0.5°; illuminometer: error not more than ±7%, weighing instrument: resolution 0.2kg. Other instruments can also be used if they meet the above requirements. Test instruments must have a valid calibration certificate issued by the statutory metrology department when used. 4.3 Test Road
4.3.1 Except for special provisions, all performance tests shall be conducted on a straight asphalt or concrete road, which shall be flat, dry and clean. 4.3.2 Except for special provisions, the test section shall be as horizontal as possible, and its longitudinal slope shall not exceed 1%, and the height difference between any two points shall not exceed 1m, and the transverse slope shall not exceed 3%. 4.4 Driver
4.4.1 The total weight of the driver and his equipment is 75kg. 4.4.2 The driver shall hold a driver's license, have proficient driving skills, and be familiar with the test methods. 4.4.3 The driver must be equipped with a helmet, protective glasses, tight test clothes, gloves, test shoes, and other necessary protective equipment. The driver of a three-wheeled motorcycle with a cab is excluded. 4.4.4 When driving, the driver shall sit in the specified driving position, control the steering handle with both hands, put his feet on his feet, and stretch his arms normally. 4.5 Climate conditions
Except for special provisions, each performance test should be carried out under the condition that the wind speed is not more than 3m/s. 4.6 Other
Related matters are shown in Appendix A (Supplement).
5 Value selection rules
5.1 The number of tests is determined according to the purpose of the test. If there is no special requirement, it is generally stipulated to be two times, one round trip as one time. Each round trip must be carried out continuously, and the arithmetic mean of the round trip is taken. The deviation rate of the round trip measurement value is not allowed to exceed the provisions of Table 1. If it exceeds, the test is invalid and should be repeated.
Test items
Fuel consumption
Braking distance
Acceleration performance
Test content
Fuel consumption, mL
Corrected braking distance, m
Time, s
Distance, m
Deviation rate, %
When the test is conducted twice or more, the idle emission value shall be taken as the average value, the noise value shall be taken as the maximum value, and the other performance index values ​​shall be taken as the optimal value. 5.2
5.3 The measurement value deviation rate is calculated according to formula (4): 2IA— B
Wherein: e—
deviation rate;
“forward” measurement value;
× 100%
“return” measurement value.
GB/T537894
5.4 The rounding off of numerical values ​​shall comply with GB8170. The number of digits retained after rounding off shall comply with the provisions of Table 2. Table 2
Test items
Odometer indication value verification
Starting performance
Minimum stable vehicle speed
Maximum vehicle speed
Acceleration performance
Climbing performance
Fuel consumption
Braking distance
Idle emission
Test record
Test content
Verification coefficient
Fuel consumption
Corrected braking distance
Noise level
The test results are summarized and recorded in Appendix B Table B2. 128
L/100km
Number of digits retained after rounding
Three decimal places
One decimal place
One decimal place
One decimal place
One decimal place
Two decimal places
Two decimal places
Hundreds
AT stopwatch
GB/T 5378-94
Appendix A
Supplementary explanation
(Supplementary part)
If a stopwatch is used for timing, three stopwatches must be used for timing at the same time, and the measured values ​​shall be taken as the arithmetic mean. The deviation between the measured value of each stopwatch and the arithmetic mean of the three stopwatches shall not exceed ±0.3s. If the deviation between the measured value of one stopwatch and the arithmetic mean of the three stopwatches exceeds the specified value, the measured value of the stopwatch is invalid, and the arithmetic mean of the other two stopwatches is used as the measured value. If the deviation between the measured value of two stopwatches and the arithmetic mean of the three stopwatches exceeds the specified value, the test is invalid. A2 Under equivalent conditions, various road tests are allowed to be carried out on the test bench. In case of disputes over equivalent conditions, the arbitration shall be based on the road test. Appendix B
Summary of running-in driving record and performance test (supplement)
Table B1 Running-in driving record
Manufacturer name
Frame number
Run-in mileage
Empty vehicle weight
Gasoline brand
Driver
Vehicle model
Engine number
kmStart date
kgDriver weight
Lubricant brand
Inspector
Odometer
Inspection number No.
Date of publication
End date
kgLoaded mass
Volume mixture ratio
100 km
Gasoline mileage,
Speed ​​consumption
km/h|km/hl
Consumption and measures to be taken
Manufacturer name
Frame number
Empty mass
Gasoline brand
Additional remarks:
Test items
GB/T 5378—94
Table B2 Summary of performance tests
Vehicle model
Engine number
kgStart date of inspection
Lubricating oil brand
This standard is proposed by China National Automotive Industry Corporation. This standard is under the jurisdiction of the National Technical Committee for Automotive Standardization. This standard was drafted by the National Motorcycle Quality Supervision and Inspection Center. The main drafters were Zhang Dexiu and Xu Jingxun.
Inspection number
Factory date
Inspection end date
Volume mixing ratio
Performance index
Test results
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