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GB/T 6323-2014 English PDF (GBT6323-2014)
GB/T 6323-2014 English PDF (GBT6323-2014)
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GB/T 6323-2014: Controllability and stability test procedure for automobile
GB/T 6323-2014
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.50
T 23
Replacing GB/T 6323.1~6323.6-1994
Controllability and Stability Test Procedure for
Automobile
ISSUED ON: FEBRUARY 19, 2014
IMPLEMENTED ON: JUNE 1, 2014
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Instruments and Equipment ... 5
4 Test Conditions ... 7
5 Pylon Course Slalom Test ... 8
6 Steering Transient Response Test (steering wheel angle step input) ... 17
7 Steering Transient Response Test (steering wheel angle pulse input) ... 25
8 Returnability Test ... 30
9 Steering Efforts Test ... 38
10 Steady Static Circular Test ... 44
11 Controllability and Stability Test of Central Area of Steering Wheel ... 49
12 Test Report ... 58
Appendix A (normative) Data Sheet - Basic Evaluation Test ... 59
Appendix B (informative) Data Sheet -- Benchmarking Test ... 61
Appendix C (informative) Test Condition -- Benchmarking Test ... 67
Appendix D (informative) Steady Static Circular Test Procedure -- Fixed Turning
Radius Method ... 69
Controllability and Stability Test Procedure for
Automobile
1 Scope
This Standard specifies the pylon course slalom test procedure, steering transient
response test procedure (steering wheel angle step input and steering wheel angle
pulse input), returnability test procedure, steering efforts test procedure, steady static
circular test procedure, and controllability and stability test procedure for the central
area of steering wheel for automobile.
The pylon course slalom test procedure, steering transient response test procedure
(steering wheel angle step input and steering wheel angle pulse input), returnability
test procedure, and steering efforts test procedure are applicable to Type-M, Type-N
and Type-G vehicles. The steady static circular test procedure is applicable to bi-axial
Type-M, Type-N and Type-G vehicles. The controllability and stability test procedure
for the central area of steering wheel is applicable to Type-M1 and Type-N1 vehicles.
Other types of vehicles may take them as a reference.
2 Normative References
The following documents are indispensable to the application of this document. In
terms of references with a specified date, only versions with a specified date are
applicable to this document. In terms of references without a specified date, the latest
version (including all the modifications) is applicable to this document.
GB/T 3730.1 Motor Vehicles and Trailers - Types - Terms and Definitions
GB/T 3730.2 Road Vehicles - Masses - Vocabulary and Codes
GB/T 12534-1990 Motor Vehicles - General Rules of Road Test Method
GB/T 12549 Terms and Definitions for Vehicle Controllability and Stability
GB/T 15089 Classification of Power-driven Vehicles and Trailers
3 Instruments and Equipment
3.1 The instruments required for the test are as follows:
a) Speedometer;
b) Steering wheel torque and steering wheel angle measuring instrument;
3.4 The bandwidth of the entire measurement system, including the sensor and
recording system, is not less than 3 Hz.
3.5 The various sensors are installed in accordance with their respective instruction
manuals. Specifically speaking, the speedometer shall be installed on the longitudinal
symmetry plane of the vehicle; the controllability and stability tester shall be as close
to the center of mass of the vehicle as possible.
4 Test Conditions
4.1 Test Vehicles
4.1.1 Before the test, determine the wheel positioning parameters. Check, adjust and
tighten the steering system and suspension system; lubricate them as required. The
test can only be carried out if it is determined that the test vehicle has met the technical
conditions specified by the manufacturer. The values of the relevant parameters being
determined and checked are recorded in Appendix A and Appendix B.
4.1.2 If new tires are used for the test, before the test, they shall at least go through
200 km of normal running. If used tires are used for the test, after the test is completed,
the residual tire crown pattern depth shall be not less than 1.6 mm. The tire pressure
shall comply with the exit-factory technical requirements of the vehicle.
4.1.3 Before the test, at the test speed, run straight for 10 km, or, along the
circumference of a radius of 15 m, and a corresponding speed with a lateral
acceleration of 3 m/s2, run for 500 m (one time for left turn, one time for right turn), so
as to warm up the tires.
4.1.4 In pylon course slalom test, the load state is the maximum design total mass of
the vehicle. In steering transient response test (steering wheel angle step input and
steering wheel angle pulse input), returnability test, steering efforts test, steady static
circular test, and controllability and stability test for the central area of steering wheel,
the load state is the maximum design total mass and light load. The light load refers to
the state of the vehicle’s kerb weight, except for the driver, the tester and instrument,
there is no other load. In terms of vehicles with a small load capacity, if the light load
mass has exceeded 70% of the maximum total mass, then, it is unnecessary to
conduct a light load test. The load of Type-N vehicles (sandbags recommended) is
evenly distributed in the cargo box. The load (or dummies) of Type-M vehicles is
distributed on the seats and the floor, and the ratio shall comply with the exit-factory
technical requirements of the vehicle. The mass of the axle load must comply with the
manufacturer’s regulations.
4.2 Test Site and Environment
4.2.1 Test site shall be dry, flat and clean, with cement concrete or asphalt pavement.
The slope in any direction shall not be greater than 2%. In terms of the controllability
ri---the average yaw velocity of the ith test, expressed in (°)/s;
rij---within the effective staking area, the peak value of the time-history curve of the yaw
velocity (see Figure 2), expressed in (°)/s.
5.4.4 Average roll angle of vehicle body
The average roll angle of vehicle body of the ith test shall be determined in accordance
with Formula (4):
Where,
i---the average roll angle of vehicle body of the ith test, expressed in (°);
ij---within the effective staking area, the peak value of the time-history curve of the roll
angle of vehicle body (see Figure 2), expressed in (°).
5.4.5 Average lateral acceleration
5.4.5.1 In accordance with one of the following methods, determine the true value of
lateral acceleration:
a) In terms of lateral acceleration measurement, the output axis shall be aligned
or parallel to the Y-axis. If the acceleration sensor rolls with the vehicle body,
then, it shall be corrected in accordance with Formula (5):
Where,
ay---the true lateral acceleration, expressed in m/s2;
ay---the lateral acceleration indicated by the acceleration sensor, expressed
in m/s2;
g---the acceleration of gravity, expressed in 9.81 m/s2;
---the roll angle of vehicle body, expressed in (°).
b) Transient yaw velocity (expressed in rad/s) multiplied by the transient forward
speed of the vehicle (expressed in m/s).
5.4.5.2 In accordance with Formula (6), determine the average lateral acceleration of
the ith test:
6.2 Measurement Parameters
a) Vehicle forward speed...
Get QUOTATION in 1-minute: Click GB/T 6323-2014
Historical versions: GB/T 6323-2014
Preview True-PDF (Reload/Scroll if blank)
GB/T 6323-2014: Controllability and stability test procedure for automobile
GB/T 6323-2014
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.50
T 23
Replacing GB/T 6323.1~6323.6-1994
Controllability and Stability Test Procedure for
Automobile
ISSUED ON: FEBRUARY 19, 2014
IMPLEMENTED ON: JUNE 1, 2014
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Instruments and Equipment ... 5
4 Test Conditions ... 7
5 Pylon Course Slalom Test ... 8
6 Steering Transient Response Test (steering wheel angle step input) ... 17
7 Steering Transient Response Test (steering wheel angle pulse input) ... 25
8 Returnability Test ... 30
9 Steering Efforts Test ... 38
10 Steady Static Circular Test ... 44
11 Controllability and Stability Test of Central Area of Steering Wheel ... 49
12 Test Report ... 58
Appendix A (normative) Data Sheet - Basic Evaluation Test ... 59
Appendix B (informative) Data Sheet -- Benchmarking Test ... 61
Appendix C (informative) Test Condition -- Benchmarking Test ... 67
Appendix D (informative) Steady Static Circular Test Procedure -- Fixed Turning
Radius Method ... 69
Controllability and Stability Test Procedure for
Automobile
1 Scope
This Standard specifies the pylon course slalom test procedure, steering transient
response test procedure (steering wheel angle step input and steering wheel angle
pulse input), returnability test procedure, steering efforts test procedure, steady static
circular test procedure, and controllability and stability test procedure for the central
area of steering wheel for automobile.
The pylon course slalom test procedure, steering transient response test procedure
(steering wheel angle step input and steering wheel angle pulse input), returnability
test procedure, and steering efforts test procedure are applicable to Type-M, Type-N
and Type-G vehicles. The steady static circular test procedure is applicable to bi-axial
Type-M, Type-N and Type-G vehicles. The controllability and stability test procedure
for the central area of steering wheel is applicable to Type-M1 and Type-N1 vehicles.
Other types of vehicles may take them as a reference.
2 Normative References
The following documents are indispensable to the application of this document. In
terms of references with a specified date, only versions with a specified date are
applicable to this document. In terms of references without a specified date, the latest
version (including all the modifications) is applicable to this document.
GB/T 3730.1 Motor Vehicles and Trailers - Types - Terms and Definitions
GB/T 3730.2 Road Vehicles - Masses - Vocabulary and Codes
GB/T 12534-1990 Motor Vehicles - General Rules of Road Test Method
GB/T 12549 Terms and Definitions for Vehicle Controllability and Stability
GB/T 15089 Classification of Power-driven Vehicles and Trailers
3 Instruments and Equipment
3.1 The instruments required for the test are as follows:
a) Speedometer;
b) Steering wheel torque and steering wheel angle measuring instrument;
3.4 The bandwidth of the entire measurement system, including the sensor and
recording system, is not less than 3 Hz.
3.5 The various sensors are installed in accordance with their respective instruction
manuals. Specifically speaking, the speedometer shall be installed on the longitudinal
symmetry plane of the vehicle; the controllability and stability tester shall be as close
to the center of mass of the vehicle as possible.
4 Test Conditions
4.1 Test Vehicles
4.1.1 Before the test, determine the wheel positioning parameters. Check, adjust and
tighten the steering system and suspension system; lubricate them as required. The
test can only be carried out if it is determined that the test vehicle has met the technical
conditions specified by the manufacturer. The values of the relevant parameters being
determined and checked are recorded in Appendix A and Appendix B.
4.1.2 If new tires are used for the test, before the test, they shall at least go through
200 km of normal running. If used tires are used for the test, after the test is completed,
the residual tire crown pattern depth shall be not less than 1.6 mm. The tire pressure
shall comply with the exit-factory technical requirements of the vehicle.
4.1.3 Before the test, at the test speed, run straight for 10 km, or, along the
circumference of a radius of 15 m, and a corresponding speed with a lateral
acceleration of 3 m/s2, run for 500 m (one time for left turn, one time for right turn), so
as to warm up the tires.
4.1.4 In pylon course slalom test, the load state is the maximum design total mass of
the vehicle. In steering transient response test (steering wheel angle step input and
steering wheel angle pulse input), returnability test, steering efforts test, steady static
circular test, and controllability and stability test for the central area of steering wheel,
the load state is the maximum design total mass and light load. The light load refers to
the state of the vehicle’s kerb weight, except for the driver, the tester and instrument,
there is no other load. In terms of vehicles with a small load capacity, if the light load
mass has exceeded 70% of the maximum total mass, then, it is unnecessary to
conduct a light load test. The load of Type-N vehicles (sandbags recommended) is
evenly distributed in the cargo box. The load (or dummies) of Type-M vehicles is
distributed on the seats and the floor, and the ratio shall comply with the exit-factory
technical requirements of the vehicle. The mass of the axle load must comply with the
manufacturer’s regulations.
4.2 Test Site and Environment
4.2.1 Test site shall be dry, flat and clean, with cement concrete or asphalt pavement.
The slope in any direction shall not be greater than 2%. In terms of the controllability
ri---the average yaw velocity of the ith test, expressed in (°)/s;
rij---within the effective staking area, the peak value of the time-history curve of the yaw
velocity (see Figure 2), expressed in (°)/s.
5.4.4 Average roll angle of vehicle body
The average roll angle of vehicle body of the ith test shall be determined in accordance
with Formula (4):
Where,
i---the average roll angle of vehicle body of the ith test, expressed in (°);
ij---within the effective staking area, the peak value of the time-history curve of the roll
angle of vehicle body (see Figure 2), expressed in (°).
5.4.5 Average lateral acceleration
5.4.5.1 In accordance with one of the following methods, determine the true value of
lateral acceleration:
a) In terms of lateral acceleration measurement, the output axis shall be aligned
or parallel to the Y-axis. If the acceleration sensor rolls with the vehicle body,
then, it shall be corrected in accordance with Formula (5):
Where,
ay---the true lateral acceleration, expressed in m/s2;
ay---the lateral acceleration indicated by the acceleration sensor, expressed
in m/s2;
g---the acceleration of gravity, expressed in 9.81 m/s2;
---the roll angle of vehicle body, expressed in (°).
b) Transient yaw velocity (expressed in rad/s) multiplied by the transient forward
speed of the vehicle (expressed in m/s).
5.4.5.2 In accordance with Formula (6), determine the average lateral acceleration of
the ith test:
6.2 Measurement Parameters
a) Vehicle forward speed...
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