GB/T 15364-1994 Test method for parking performance of motorcycles and mopeds
Some standard content:
National Standard of the People's Republic of China
Motorcycle and moped parkingperformance test method
Subject content and scope of application
GB/T 15364-94
This standard specifies the parking brake performance test method for three-wheeled motorcycles and sidecar motorcycles and the parking performance test method for two-wheeled motorcycles and mopeds with struts and parking racks. This standard applies to all types of motorcycles except off-road racing. 2 Reference standards
GB5359.3 Terms for motorcycles and mopeds Vehicle mass GB/T15363 Requirements for parking performance of motorcycles and mopeds 3 Test instruments, equipment and accuracy
Angle meter or theodolite, with a reading resolution of no more than 15'. Thermometer, with a reading resolution of no more than 0.5℃. Tension gauge, with a reading resolution of no more than 0.2kN. Traction equipment.
Dynamometer, reading resolution not greater than 10N. Stopwatch, reading resolution not greater than 0.01s. Drum brake force test bench.
Anemometer, 0~30m/s, reading resolution not greater than 0.1m/s. Tiltable measuring platform, which should be able to tilt around the X-axis and Y-axis in the plane coordinate system. The platform should have sufficient rigidity, the surface should be flat, the flatness error should not be greater than 5mm within the measuring range, and the surface adhesion coefficient should be equivalent to 0.7~0.8 for concrete or asphalt pavement.
4 Test conditions
4.1 Parking brake test
4.1.1 The test vehicle should be fully equipped and in good technical condition. 4.1.2 The mass state of the test vehicle is the factory-determined maximum total mass, and its definition should comply with the provisions of GB5359.3. 4.1.3 The tire crown wear of the test vehicle shall not exceed 20%, and the inflation pressure shall comply with the provisions of the manufacturer's instruction manual. 4.1.4 The parking brake and tires of the test vehicle should be kept dry and clean, and must not be contaminated with mud, water, oil, etc. 4.1.5 During the parking brake test, the temperature of the friction surface of the brake drum or brake disc should not be higher than 65℃. 4.1.6 Before the parking brake test, the test vehicle should be run-in according to the manufacturer's regulations. Approved by the State Administration of Technical Supervision on December 27, 1994 and implemented on July 1, 1995
GB/T 15364--94
4.1.7 The test road surface should be a dry, clean and flat concrete or asphalt road surface. The slope of the ramp during the ramp test should comply with the provisions of Table 1 of GB/T15363. During the traction test, the road surface should be horizontal, and its longitudinal slope should not exceed 1% and the transverse slope should not exceed 3%. 4.1.8 When conducting the test outdoors, the wind speed should not exceed 3m/s. 4.1.9 The control force applied to the joystick or pedal should be in the direction of normal operation, and the control force should be applied at the center of the joystick handle or pedal. If the middle of the joystick handle is not obvious, it should be taken at 50 ± 5mm from the top. 4.2 Parking test of support pole and parking rack
4.2.1 The test vehicle shall comply with the provisions of Article 4.1.1, and the tire inflation pressure shall comply with the provisions of the manufacturer's instruction manual. 4.2.2 The quality status of the test vehicle is the full equipment quality, and its definition shall comply with the provisions of GB5359.3. 4.2.3 When the test vehicle measures the specific pressure, the parking surface shall be a solid, flat and horizontal ground. 5 Test method
5.1 Parking brake performance test
The parking brake performance test method is divided into three types: ramp test, traction test and bench test, and the ramp test should be used first. 5.1.1 Slope test
5.1.1.1 Drive the test vehicle steadily onto the test slope, so that the longitudinal centerline of the vehicle coincides with or is parallel to the centerline of the slope, and stop the vehicle with the service brake.
5.1.1.2 Shift the transmission of the test vehicle into the neutral position, operate the parking brake device according to the control force specified in Table 1 of GB/T15363, and then release the service brake control. After confirming that the test vehicle has completely stopped, read the control force and observe for 5 minutes. The test vehicle shall not move at all.
5.1.1.3 The test vehicle shall be tested three times in the uphill direction and the downhill direction respectively. The test in each direction shall be confirmed to be successful only when the test vehicle does not move at all in the three tests. The test data shall be recorded in Table A1 of Appendix A (Supplement). 5.1.2 Traction test
5.1.2.1 Drive the test vehicle slowly onto the test section and stop the vehicle with the service brake. 5.1.2.2 Shift the transmission of the test vehicle into the neutral position, operate the parking brake device according to the control force specified in Table 1 of GB/T15363, and then release the service brake control.
5.1.2.3 Use the traction equipment to tow the test vehicle. The direction of the traction force should be parallel to the ground. The main three-wheeled motorcycle should also pass through its longitudinal center line. The sidecar three-wheeled motorcycle should also pass through its center of mass and be parallel to the longitudinal center plane of the main vehicle. The traction force should be increased steadily and slowly during towing, and the traction force value at the moment before the test vehicle moves should be measured. 5.1.2.4 According to the measured traction force, the corresponding parking slope angle is calculated according to formula (1): α arcsin -
Where: α-——parking slope angle, (); P—traction force, N;
m-mass of the test vehicle, kg;
gravitational acceleration, m/s2.
5.1.2.5 The vehicle under test is tested three times in forward and reverse directions respectively. The difference between the maximum and minimum values in the three measurements in each direction shall not be greater than 1°30°, otherwise the test shall be repeated and the test values shall be recorded in Table A2 of Appendix A. 5.1.3 Bench test
5.1.3.1 Place the vehicle under test on the braking force test bench, make the longitudinal centerline of the vehicle perpendicular to the axis of the bench roller, rotate the bench roller, and measure the reading value of the wheel on the bench when no control force is applied. 5.1.3.2 Continue to rotate the bench roller, operate the parking brake device according to the control force specified in Table 1 of GB/T15363, keep the vehicle in the parking brake state, and measure the parking brake force value of each wheel of the test vehicle. 198
GB/T 15364--94
5.1.3.3 Calculate the corresponding parking slope angle according to formula (2) based on the sum of the parking brake forces of each wheel measured, i.e. the total parking brake force.
In the formula: α
= aresin (Ff- fi) + (F.- fa)Fz
α = arcsin
parking slope angle, (°);
total parking braking force of the test vehicle, N;
parking braking force of the left wheel when control force is applied, N; F
parking braking force of the right wheel when control force is applied, N; m·g
the reading value of the left wheel on the test bench when no control force is applied (original value), N, fi
f2-the reading value of the right wheel on the test bench when no control force is applied (original value), N; m—mass of the test vehicle, kg,
g-acceleration due to gravity, m/s.
.....(2)bzxZ.net
5.1.3.4 Carry out three tests in the forward and reverse directions respectively. The difference between the maximum and minimum values in the three measurements in each direction shall not exceed 1°30°, otherwise the test shall be repeated. The measured values shall be recorded in Table A3 of Appendix A. 5.1.4 Value selection regulations
Take the minimum value of the arithmetic mean of the three test data of the test vehicle in the uphill and downhill directions or the forward and reverse directions. After rounding, retain the corresponding degree and minute values to one decimal place. 5.2 Parking performance test of support poles and parking racks
5.2.1 Determination of rollover slope angle and front rollover slope angle 5.2.1.1 Place the test vehicle on the measuring platform and make the vehicle axis system consistent with the coordinate system of the tiltable measuring platform. 5.2.1.2 Shift the transmission of the test vehicle into the neutral position. If the test vehicle has a parking brake or its transmission has a parking gear, it should be in the parking brake state or in the parking gear.
5.2.1.3 During the test, the steering handle of the test vehicle should be in the direction lock position. If the steering handle can be locked to the left or right, the test should be carried out in both states.
5.2.1.4 Park the test vehicle on the measurement platform with support rods and parking racks according to the requirements of 5.2.1.1. In each support state, the platform is slowly tilted to the left (or right) around the axis parallel to the X-axis from its horizontal position. The platform tilt angle when the test vehicle begins to overturn or slide is measured, which is the rollover slope angle of the vehicle in this state. 5.2.1.5 Park the vehicle under test on the measuring platform with support poles and parking racks according to the requirements of 5.2.1.1. In each supporting state, the platform is slowly tilted forward from its horizontal position around an axis parallel to the Y axis. The platform tilt angle when the vehicle under test begins to tip over or slide is measured, which is the forward rollover slope angle of the vehicle under this supporting state. 5.2.1.6.Each state is measured three times. The difference between the maximum and minimum values of the three measured values shall not be greater than 1°, otherwise the test shall be repeated. The measured values shall be recorded in Table A4 of Appendix A.
5.2.1.7 Value selection provisions
Take the minimum value of the arithmetic mean of the three effective values measured in each state. The calculated value shall be rounded off to the corresponding degree and minute values after the decimal point.
5.2.2 Specific pressure measurement
5.2.2.1 Support force measurement
a. Install a dynamometer at the contact point between the horizontal parking surface and the end of the support rod. The contact surface between the dynamometer and the end of the support rod shall be in the same horizontal plane as the tire support surface. Measure the pressure of the end of the support rod on the support surface. Record the measured force value in Table A5 of Appendix A. b. During the measurement, the steering handle of the test vehicle shall be in the direction lock position. If the steering handle can be locked to the left or right, the measurement shall be carried out in both states, and the larger value of the measured values in the two states shall be taken. 5.2.2.2 The projected area of the support contact area is measured by using the method of stamping the end of the support rod on plastic materials such as plasticine or model clay to determine the support contact area. As shown in the figure below, place the test vehicle on a horizontal parking surface, use a support rod to park the vehicle, and place a plastic material pad with a thickness of about 5mm under the end of the support rod. The projected area formed by the end of the support rod on the upper surface of the plastic pad is the support contact area. When measuring, the traces caused by the expansion and contraction of the support rod should not be calculated in the support contact area. The measured support contact area shall be recorded in Table A5 of Appendix A. Select foot stamping
Plastic pad
5.2.2.3 Calculation of specific pressure
The average specific pressure of the support contact area of the support rod is the support force measured in 5.2.2.1 divided by the projected area of the support contact area measured in 5.2.2.2. The calculated value shall be rounded off to one decimal place. 200
Vehicle model
Frame number
Factory-specified maximum
Total mass, kg
Test location
Test time
Operation method
Brake type
Test personnel
Value Conclusion
GB/T15364—94
Appendix A
Test record
(Supplement)
Parking slope angle
Parking brake slope Road test record
Tire pressure
Main test
Control force
Meteorological characteristics
Temperature, ℃
Parking time
Rear left:
Rear right:
Parking slope
Average angle of degrees
Vehicle model
Frame number
Factory-specified maximum
Total mass, kg
Test location
Test time
Operation method|| tt||Brake type
Tester
Forward direction
Reverse direction
Value conclusion
Control force
GB/T15364-94
Table A2 Parking brake traction test record
Tire pressure
Main test
Traction force
Meteorological characteristics
Temperature, ℃
Parking slope angle
Rear left:
Rear right:||t t||Parking slope angle
Average value, (°)
Maximum, minimum
Angle difference, (\)
Forward direction
Reverse direction
Vehicle model
Frame number
Factory-specified maximum
Total mass, kg
Test location
Test time
Manipulation method
Brake type
Test personnel
Control force
GB/T 15364—94
Parking brake bench test record
Tire pressure
Main test
Original
Readings of left and right wheels
Parking
Braking force readings of left and right wheels
Meteorological characteristics
Temperature, ℃
Left and right wheels
Actual braking force
Total parking
Braking force
Rear left:||t t||Rear right:
Parking slope
Parking slope
Angle value
Average value
Maximum,
Angle difference
Vehicle model
Frame number
Full equipment weight
Tire pressure
Whether there is parking brake
Whether there is
Parking gear
Front wheel:
Rear wheel:
GB/T 15364—94
Side rollover slope angle, front rollover slope angle test record table A4
Main test
Test location
Test time
Side rollover slope angle, (\)
Strut parking
Steering handle to the left
Average value
Maximum, minimum
Angle difference
Steering handle to the right
Parking rack
Steering handle to the left
Steering handle to the right
Strut parking
Steering handle
Steering handle
Angle, (°)
Steering handle
Steering handle
Vehicle Model
Frame number
Total equipment weight
Tire pressure
Parking brake
Transmission
Parking gear
Supporting force, N
Handlebar to the left
Front wheel:
Rear wheel:
Handlebar to the right
Additional instructions:
GB/T15364—94
Strut end pressure test record
Main test
Test location
Test time
Supporting force
Take the larger value, N
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 is drafted by Nanchang Institute of Aeronautical Technology. The main drafters of this standard are Kuang Yuwen, Gu Xin and Chen Renxian. Test
Support contact area
Projected area, mm2
Specific pressure, N/mm2The projected area of the support contact area measured by the two strips is the average specific pressure of the support contact area of the strut. The calculated value is rounded off to one decimal place. 200
Vehicle model
Frame number
Factory-specified maximum
Total mass, kg
Test location
Test time
Operation method
Brake type
Test personnel
Value Conclusion
GB/T15364—94
Appendix A
Test record
(Supplement)
Parking slope angle
Parking brake slope Road test record
Tire pressure
Main test
Control force
Meteorological characteristics
Temperature, ℃
Parking time
Rear left:
Rear right:
Parking slope
Average angle of degrees
Vehicle model
Frame number
Factory-specified maximum
Total mass, kg
Test location
Test time
Operation method|| tt||Brake type
Tester
Forward direction
Reverse direction
Value conclusion
Control force
GB/T15364-94
Table A2 Parking brake traction test record
Tire pressure
Main test
Traction force
Meteorological characteristics
Temperature, ℃
Parking slope angle
Rear left:
Rear right:||t t||Parking slope angle
Average value, (°)
Maximum, minimum
Angle difference, (\)
Forward direction
Reverse direction
Vehicle model
Frame number
Factory-specified maximum
Total mass, kg
Test location
Test time
Manipulation method
Brake type
Test personnel
Control force
GB/T 15364—94
Parking brake bench test record
Tire pressure
Main test
Original
Readings of left and right wheels
Parking
Braking force readings of left and right wheels
Meteorological characteristics
Temperature, ℃
Left and right wheels
Actual braking force
Total parking
Braking force
Rear left:||t t||Rear right:
Parking slope
Parking slope
Angle value
Average value
Maximum,
Angle difference
Vehicle model
Frame number
Full equipment weight
Tire pressure
Whether there is parking brake
Whether there is
Parking gear
Front wheel:
Rear wheel:
GB/T 15364—94
Side rollover slope angle, front rollover slope angle test record table A4
Main test
Test location
Test time
Side rollover slope angle, (\)
Strut parking
Steering handle to the left
Average value
Maximum, minimum
Angle difference
Steering handle to the right
Parking rack
Steering handle to the left
Steering handle to the right
Strut parking
Steering handle
Steering handle
Angle, (°)
Steering handle
Steering handle
Vehicle Model
Frame number
Total equipment weight
Tire pressure
Parking brake
Transmission
Parking gear
Supporting force, N
Handlebar to the left
Front wheel:
Rear wheel:
Handlebar to the right
Additional instructions:
GB/T15364—94
Strut end pressure test record
Main test
Test location
Test time
Supporting force
Take the larger value, N
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 is drafted by Nanchang Institute of Aeronautical Technology. The main drafters of this standard are Kuang Yuwen, Gu Xin and Chen Renxian. Test
Support contact area
Projected area, mm2
Specific pressure, N/mm2The projected area of the support contact area measured by the two strips is the average specific pressure of the support contact area of the strut. The calculated value is rounded off to one decimal place. 200
Vehicle model
Frame number
Factory-specified maximum
Total mass, kg
Test location
Test time
Operation method
Brake type
Test personnel
Value Conclusion
GB/T15364—94
Appendix A
Test record
(Supplement)
Parking slope angle
Parking brake slope Road test record
Tire pressure
Main test
Control force
Meteorological characteristics
Temperature, ℃
Parking time
Rear left:
Rear right:
Parking slope
Average angle of degrees
Vehicle model
Frame number
Factory-specified maximum
Total mass, kg
Test location
Test time
Operation method|| tt||Brake type
Tester
Forward direction
Reverse direction
Value conclusion
Control force
GB/T15364-94
Table A2 Parking brake traction test record
Tire pressure
Main test
Traction force
Meteorological characteristics
Temperature, ℃
Parking slope angle
Rear left:
Rear right:||t t||Parking slope angle
Average value, (°)
Maximum, minimum
Angle difference, (\)
Forward direction
Reverse direction
Vehicle model
Frame number
Factory-specified maximum
Total mass, kg
Test location
Test time
Manipulation method
Brake type
Test personnel
Control force
GB/T 15364—94
Parking brake bench test record
Tire pressure
Main test
Original
Readings of left and right wheels
Parking
Braking force readings of left and right wheels
Meteorological characteristics
Temperature, ℃
Left and right wheels
Actual braking force
Total parking
Braking force
Rear left:||t t||Rear right:
Parking slope
Parking slope
Angle value
Average value
Maximum,
Angle difference
Vehicle model
Frame number
Full equipment weight
Tire pressure
Whether there is parking brake
Whether there is
Parking gear
Front wheel:
Rear wheel:
GB/T 15364—94
Side rollover slope angle, front rollover slope angle test record table A4
Main test
Test location
Test time
Side rollover slope angle, (\)
Strut parking
Steering handle to the left
Average value
Maximum, minimum
Angle difference
Steering handle to the right
Parking rack
Steering handle to the left
Steering handle to the right
Strut parking
Steering handle
Steering handle
Angle, (°)
Steering handle
Steering handle
Vehicle Model
Frame number
Total equipment weight
Tire pressure
Parking brake
Transmission
Parking gear
Supporting force, N
Handlebar to the left
Front wheel:
Rear wheel:
Handlebar to the right
Additional instructions:
GB/T15364—94
Strut end pressure test record
Main test
Test location
Test time
Supporting force
Take the larger value, N
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 is drafted by Nanchang Institute of Aeronautical Technology. The main drafters of this standard are Kuang Yuwen, Gu Xin and Chen Renxian. Test
Support contact area
Projected area, mm2
Specific pressure, N/mm2N
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 Nanchang Institute of Aeronautical Technology. The main drafters of this standard are Kuang Yuwen, Gu Xin and Chen Renxian. Test
Support contact area
Projected area, mm2
Specific pressure, N/mm2N
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 Nanchang Institute of Aeronautical Technology. The main drafters of this standard are Kuang Yuwen, Gu Xin and Chen Renxian. Test
Support contact area
Projected area, mm2
Specific pressure, N/mm2
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