QC/T 926-2013 PDF English
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QC/T 926-2013: The Reliability Test Methods for Powertrain Unit of Light-Duty Hybrid Electric Vehicle (ISG Type)
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AUTOMOBILE INDUSTRY STANDARD
ICS 43.040
T 47
The Reliability Test Methods for Powertrain Unit of
Light-Duty Hybrid Electric Vehicle (ISG Type)
Issued on. APRIL 25, 2013
Implemented on. SEPTEMBER 01, 2013
Issued by. Ministry of Industry and Information Technology of PRC
Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword... 8
1 Scope... 9
2 Normative References... 9
3 Terms and Definitions... 9
4 Test Subjects and Conditions... 10
5 Test Procedures... 11
6 Fault Treatment... 13
7 Assessment Criteria... 13
Appendix A (Normative) Test Procedures... 14
Appendix B (Normative) Reliability Test Program of Powertrain Unit... 15
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
The Appendixes A and B of this Standard are normative.
This Standard was proposed by and under the jurisdiction of National Technical
Committee for Standardization of Automobiles (SAC/TC 114).
Drafting organizations of this Standard. Chongqing Changan New Energy Vehicle Co.,
Ltd.; China Automotive Technology & Research Center; Chongqing Changan
Automobile Co., Ltd.; Beijing Institute of Technology; Dongfeng Motor Corporation
Technical Center; Chery New Energy Automotive Technology Co., Ltd.; Shenzhen BYD
Auto Co., Ltd.; and China FAW Group Corporation R&D Center.
Chief drafting staffs of this Standard. Ren Rong, Zhou Anjian, Jin Guoqing, Su Ling,
Pu Jiang, Yang Xuemei, Wang Yuelong, Song Qiang, Fang Yunzhou, He Yuntang,
Wang Chao, and Deng Yuanfa.
The Reliability Test Methods for Powertrain Unit of
Light-Duty Hybrid Electric Vehicle (ISG Type)
1 Scope
This Standard specifies the reliability test methods for powertrain unit of light-duty
hybrid electric vehicle (ISG type).
This Standard is applicable to the powertrain unit for Type-M1, Type-N1 and Type-M2
hybrid electric vehicle (ISG type) with maximum design total mass no greater than 3.5t.
This Standard is not applicable to the idle start-stop function.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 18297-2001 Performance Test Code for Road Vehicle Engines
GB/T 18488.2 Drive Motor System for Electric Vehicles - Part 2.Test Methods
GB/T 19055-2003 Reliability Test Methods for Motor Vehicle Engines
GB/T 19596 Terminology of Electric Vehicles
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB/T 19596 and
the following apply.
3.1 Hybrid control unit (HCU)
Controller for hybrid power system.
3.2 Integrated starter and generator (ISG)
A motor that integrates the starting and power generation functions.
4 Test Subjects and Conditions
4.1 Test subjects
4.2 Test conditions
4.2.1 The accuracy of the test instrument, measurement position, and calculation of
test data shall conform to the relevant provisions of Clauses 4 and 5 in GB/T 18297-
2001 and GB/T 18488.2.
4.2.2 The DC power supply can provide the power to the motor system, while can also
absorb the feedback power from the motor system. The working voltage and frequency
of the DC power supply can meet the test requirements.
4.2.6 According to the manufacturer’s provisions, perform the function test against the
system consisting of the powertrain unit and the accessories; the system can work
normally.
5 Test Procedures
5.1 Test procedures
The test procedures can refer to Appendix A.
5.2 Test preparation
5.3 Initial test of performance
5.3.1 The engine throttle is fully open; set the motor load to the maximum electric power
output. In the speed range of the engine, measure by successively changing the motor
speed; appropriately distribute more than 8 measurement points; test the output torque
of the engine at different speed points.
5.4 Reliability test
The reliability test shall be performed as per the Appendix B.
5.5 Inspection and maintenance
5.5.1 General
Inspection and maintenance shall be carried out according to the following
requirements; but the contents and cycle may be appropriately increased and
decreased. The inspection results and maintenance situations shall be recorded in
detail.
5.5.3 Inspection records per 1h
5.5.3.1 Record per hour the reliability accumulative running time, powertrain unit output
torque, engine speed, engine coolant outlet temperature, engine oil temperature, input
DC bus voltage and current of the motor controller, voltage and current of each output
phase of the motor controller, motor coolant outlet temperature (if the system contains
the cooling device of the motor coolant); if the motor winding is equipped with a
thermistor temperature sensor, then the operating temperature of the motor winding
shall checked together.
5.5.3.2 After the cold start, the pre-heating time of the powertrain unit shall not be
included int the reliability accumulative time.
5.5.4 Inspection and maintenance every 24h
5.5.4.1 The engine part shall be performed as per the 10.3 in GB/T 19055-2003.
5.5.5 Inspection and maintenance every 96h
Inspect and maintain the engine every 96h according to 10.4 in GB/T 19055-2003.
5.5.6 Inspection and maintenance every 192h
Inspect and maintain the engine every 192h according to 10.5 in GB/T 19055-2003.
5.6 Performance retest
The performance retest of the powertrain unit shall be carried out as per the 5.3.
The performance test against the engine and motor shall be carried out separately
according to GB/T 18297-2001, GB/T 18488.2, and the performance report test items
of the manufacturer.
6 Fault Treatment
6.1 When the test needs to be interrupted due to the fault, if the powertrain unit is
checked for no hardware damage, restart the powertrain unit, the system operates
normally, then the test can be continued. The downtime shall not include in the running
time of the powertrain unit. If the downtime exceeds 1h, restart the first cycle with time
not including in the running time of the powertrain unit; the time shall be counted from
the second cycle.
7 Assessment Criteria
If the hybrid powertrain assembly can operate normally after 400h reliability test, then
its performance can meet the technical requirements provided by the manufacturer.
Appendix A
(Normative)
Test Procedures
The test procedures can refer to Figure A.1.
Appendix B
(Normative)
Reliability Test Program of Powertrain Unit
B.1 The engine throttle is fully open; speed is uniformly raised from nM to nP for 90s;
during this period, the motor runs for 30s at the peak electric power; then runs for 60s
at the rated electric power.
B.2 The engine runs stably at the speed nP for 210s; during this period, the motor runs
at the rated power generation for 10s, runs for 10s at the rated electric power, then
runs for 10s at the rated power generation; cycles repeatedly.
B.3 The engine speed is uniformly reduced to the speed nM for 90s; during this period,
the motor runs at the rated power generation.
B.4 The engine runs stably at the speed nM for 210s; during this period, the motor runs
for 10s at the rated power generation, runs for 10s at the rated electric power, then
runs for 10s at the rated power generation; cycles repeatedly.
QC/T 926-2013
AUTOMOBILE INDUSTRY STANDARD
ICS 43.040
T 47
The Reliability Test Methods for Powertrain Unit of
Light-Duty Hybrid Electric Vehicle (ISG Type)
Issued on. APRIL 25, 2013
Implemented on. SEPTEMBER 01, 2013
Issued by. Ministry of Industry and Information Technology of PRC
Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword... 8
1 Scope... 9
2 Normative References... 9
3 Terms and Definitions... 9
4 Test Subjects and Conditions... 10
5 Test Procedures... 11
6 Fault Treatment... 13
7 Assessment Criteria... 13
Appendix A (Normative) Test Procedures... 14
Appendix B (Normative) Reliability Test Program of Powertrain Unit... 15
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
The Appendixes A and B of this Standard are normative.
This Standard was proposed by and under the jurisdiction of National Technical
Committee for Standardization of Automobiles (SAC/TC 114).
Drafting organizations of this Standard. Chongqing Changan New Energy Vehicle Co.,
Ltd.; China Automotive Technology & Research Center; Chongqing Changan
Automobile Co., Ltd.; Beijing Institute of Technology; Dongfeng Motor Corporation
Technical Center; Chery New Energy Automotive Technology Co., Ltd.; Shenzhen BYD
Auto Co., Ltd.; and China FAW Group Corporation R&D Center.
Chief drafting staffs of this Standard. Ren Rong, Zhou Anjian, Jin Guoqing, Su Ling,
Pu Jiang, Yang Xuemei, Wang Yuelong, Song Qiang, Fang Yunzhou, He Yuntang,
Wang Chao, and Deng Yuanfa.
The Reliability Test Methods for Powertrain Unit of
Light-Duty Hybrid Electric Vehicle (ISG Type)
1 Scope
This Standard specifies the reliability test methods for powertrain unit of light-duty
hybrid electric vehicle (ISG type).
This Standard is applicable to the powertrain unit for Type-M1, Type-N1 and Type-M2
hybrid electric vehicle (ISG type) with maximum design total mass no greater than 3.5t.
This Standard is not applicable to the idle start-stop function.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 18297-2001 Performance Test Code for Road Vehicle Engines
GB/T 18488.2 Drive Motor System for Electric Vehicles - Part 2.Test Methods
GB/T 19055-2003 Reliability Test Methods for Motor Vehicle Engines
GB/T 19596 Terminology of Electric Vehicles
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB/T 19596 and
the following apply.
3.1 Hybrid control unit (HCU)
Controller for hybrid power system.
3.2 Integrated starter and generator (ISG)
A motor that integrates the starting and power generation functions.
4 Test Subjects and Conditions
4.1 Test subjects
4.2 Test conditions
4.2.1 The accuracy of the test instrument, measurement position, and calculation of
test data shall conform to the relevant provisions of Clauses 4 and 5 in GB/T 18297-
2001 and GB/T 18488.2.
4.2.2 The DC power supply can provide the power to the motor system, while can also
absorb the feedback power from the motor system. The working voltage and frequency
of the DC power supply can meet the test requirements.
4.2.6 According to the manufacturer’s provisions, perform the function test against the
system consisting of the powertrain unit and the accessories; the system can work
normally.
5 Test Procedures
5.1 Test procedures
The test procedures can refer to Appendix A.
5.2 Test preparation
5.3 Initial test of performance
5.3.1 The engine throttle is fully open; set the motor load to the maximum electric power
output. In the speed range of the engine, measure by successively changing the motor
speed; appropriately distribute more than 8 measurement points; test the output torque
of the engine at different speed points.
5.4 Reliability test
The reliability test shall be performed as per the Appendix B.
5.5 Inspection and maintenance
5.5.1 General
Inspection and maintenance shall be carried out according to the following
requirements; but the contents and cycle may be appropriately increased and
decreased. The inspection results and maintenance situations shall be recorded in
detail.
5.5.3 Inspection records per 1h
5.5.3.1 Record per hour the reliability accumulative running time, powertrain unit output
torque, engine speed, engine coolant outlet temperature, engine oil temperature, input
DC bus voltage and current of the motor controller, voltage and current of each output
phase of the motor controller, motor coolant outlet temperature (if the system contains
the cooling device of the motor coolant); if the motor winding is equipped with a
thermistor temperature sensor, then the operating temperature of the motor winding
shall checked together.
5.5.3.2 After the cold start, the pre-heating time of the powertrain unit shall not be
included int the reliability accumulative time.
5.5.4 Inspection and maintenance every 24h
5.5.4.1 The engine part shall be performed as per the 10.3 in GB/T 19055-2003.
5.5.5 Inspection and maintenance every 96h
Inspect and maintain the engine every 96h according to 10.4 in GB/T 19055-2003.
5.5.6 Inspection and maintenance every 192h
Inspect and maintain the engine every 192h according to 10.5 in GB/T 19055-2003.
5.6 Performance retest
The performance retest of the powertrain unit shall be carried out as per the 5.3.
The performance test against the engine and motor shall be carried out separately
according to GB/T 18297-2001, GB/T 18488.2, and the performance report test items
of the manufacturer.
6 Fault Treatment
6.1 When the test needs to be interrupted due to the fault, if the powertrain unit is
checked for no hardware damage, restart the powertrain unit, the system operates
normally, then the test can be continued. The downtime shall not include in the running
time of the powertrain unit. If the downtime exceeds 1h, restart the first cycle with time
not including in the running time of the powertrain unit; the time shall be counted from
the second cycle.
7 Assessment Criteria
If the hybrid powertrain assembly can operate normally after 400h reliability test, then
its performance can meet the technical requirements provided by the manufacturer.
Appendix A
(Normative)
Test Procedures
The test procedures can refer to Figure A.1.
Appendix B
(Normative)
Reliability Test Program of Powertrain Unit
B.1 The engine throttle is fully open; speed is uniformly raised from nM to nP for 90s;
during this period, the motor runs for 30s at the peak electric power; then runs for 60s
at the rated electric power.
B.2 The engine runs stably at the speed nP for 210s; during this period, the motor runs
at the rated power generation for 10s, runs for 10s at the rated electric power, then
runs for 10s at the rated power generation; cycles repeatedly.
B.3 The engine speed is uniformly reduced to the speed nM for 90s; during this period,
the motor runs at the rated power generation.
B.4 The engine runs stably at the speed nM for 210s; during this period, the motor runs
for 10s at the rated power generation, runs for 10s at the rated electric power, then
runs for 10s at the rated power generation; cycles repeatedly.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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