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标准编号: QC/T 1076-2017 (QC/T1076-2017)
中文名称: 无级变速器(CVT)性能要求及试验方法
英文名称: Performance requirements and testing methods for continuously variable transmission
行业: 汽车行业标准 (推荐)
中标分类: J22;G43
字数估计: 15,139
发布日期: 2017-04-12
实施日期: 2017-10-01
标准依据: 工业和信息化部公告2017年第14号
范围: 本标准规定了M1类车辆用无级变速器(CVT)性能要求及试验方法。

QC/T 1076-2017: 无级变速器(CVT)性能要求及试验方法
QC/T 1076-2017 英文名称: Performance requirements and testing methods for continuously variable transmission
中 华 人 民 共 和 国 汽 车 行 业 标 准
QC/T1076—2017
无级变速器(CVT)性能要求及试验方法
中华人民共和国工业和信息化部 发布
1 范围
本标准规定了M₁ 类车辆用无级变速器(CVT) 性能要求及试验方法。
本标准适用于装备了CVT的 M₁ 类车辆,装备了CVT 的 N₁ 类车辆及3500 kg以下的M₂ 类
车辆可参照执行。
2 规范性引用文件
下列文件对于本标准的应用是必不可少的。凡是注日期的引用文件,仅注日期的版本适用于本
标准。凡是不注日期的引用文件,其最新版本(包括所有的修改单)适用于本标准。
GB15089 机动车辆及挂车 分类
GB 18352.5—2013 轻型汽车污染物排放限值及测量方法(中国第五阶段) GB19233 轻型汽车燃料
消耗量试验方法
QC/T 465 汽车机械式变速器分类的术语及定义
ECE R10 Rev.3 关于车辆电磁兼容性认证的统一规定
ISO 11451-2 道路车辆 窄带辐射的电磁能量的电磁干扰车辆试验方法 第2部分:车外辐 射源
ISO 11452-4 道路车辆 窄带辐射的电磁能量的电磁干扰车辆试验方法 第4部分:大电流注入(BCI)
3 术语和定义
QC/T 465、GB 15089界定的及下列术语和定义适用于本标准。
4 试验要求与性能要求
4.1 试验要求
4.1.1 试验条件。
4.1.1.1 环境。
试验期间,试验室内温度应为288 K~308K(15℃~35℃), 相对湿度应为20%~60%,海拔不超过1000 m。
4.1.1.2 变速器油。
可使用变速器制造商指定的变速器油,并允许按照制造商指定方式进行油量调节。
4.1.1.3 台架试验磨合。
在进行实际变速比及变速比变化幅度、传递扭矩容量、稳态效率的测量试验前,应对试验样品按下列规范进行磨合:
a) 驱动电机的转速设定为1000 r/min~2000r/min, 扭矩设定为额定扭矩的50%。
b) 在最大变速比、最小变速比、中间变速比状态下各磨合1h。
4.1.1.4 台架试验暖机。
进行台架试验前,试验样品须进行过暖机运转至同时满足下列条件要求时为止:
a) 变速器油温度达到80 ℃±5℃;
b) 电机的转速、扭矩数值处于稳定状态。
4.1.1.5 整车试验磨合及暖机。
整车试验的磨合及暖机应按照 GB18352.5—2013 附录C 的规定进行。
4.1.2 试验设备。
4.1.2.1 台架试验设备精度。
4.1.2.1.1 电机转速测量装置误差:不超过士5 r/min。
4.1.2.1.2 电机扭矩测量装置误差:±2N·m 以内与最大测量扭矩的士0.5%以内的两者中取较严
格值。
4.1.2.1.3 油温控制装置控制精度为士5℃,测量精度误差不超过士0.2℃。
4.1.2.2 整车试验设备精度。
整车试验设备精度应满足 GB18352.5—2013 附录C 的要求。
4.1.2.3试验设备和夹具的损失。
进行传递扭矩容量及稳态效率的测量试验前,应按如下要求测量台架和夹具损失:
a) 在驱动电机上安装驱动轴等夹具设备,在吸收电机侧安装法兰盘等夹具。驱动电机设置到
1000 r/min,负载电机设置到500 r/min,暖机运行不少于30 min。
b) 驱动电机转速设置到1000 r/min,并按1000 r/min的增量提高驱动电机的转速至6000 r/min。
c) 负载电机转速设置到200 r/min,并按200 r/min 的增量提高负载电机的转速(最高不超过
120 km/h车速对应的转速)。
d) 扭矩数据稳定后,测量实际试验所需转速下输入轴和输出轴扭矩的扭矩值,并按表1规定
的格式填写相应的数据。
4.2 性能要求
4.2.1变速比及变速比变化幅度。
按照5.1条规定的试验方法对试验样品的变速比及变速比变化幅度进行测量,测量结果应在制
造商设计允许的范围内。
4.2.2 扭矩容量。
按照5.2条规定的试验方法对试验样品的扭矩容量进行测量,在滑转率不超过5%情况下,测量
结果应在制造商设计允许的范围内。
4.2.3 发动机最佳燃油经济性跟踪性能。
应按照5.3条规定的试验方法对试验样品的发动机最佳燃油经济性跟踪性能进行测量,最优燃
料消耗率偏移量试验结果s² 不应超过0.35。
4.2.4 锁止比。
应按照5.4条规定的试验方法对试验样品的锁止比进行测量,在非怠速工况下测得的锁止比不
应低于0.65。
4.2.5 传递效率。
应按照5.5条规定的试验方法对试验样品的传递效率进行测量,在所有工况条件下传递效率不
应低于0.6。
4.2.6 噪声。
应按照5.6条规定的试验方法对试验样品的噪声特性进行测量,驱动电机转速在1000 r/min 时,测量结果不应超过80dB(A),
驱动电机转速6000 r/min 时,测量结果不应超过100 dB(A) (中间 转速采用线性插值的方法确定噪声要求)。
4.2.7 电磁兼容。
4.2.7.1 窄带电磁辐射限值。
按 ECE R10 Rev.3《关于车辆电磁兼容性认证的统一规定》窄带电磁辐射发射限值,见表2。
4.2.7.2 电磁辐射抗扰要求。
按ECE R10 Rev.3《关于车辆电磁兼容性认证的统一规定》的6.4条要求,在20 MHz~2000MHz
干扰信号时,车速波动不应超过士10%且CVT报警灯不点亮。
5 试验方法
5.1 变速比及变速比变化幅度
5.1.1 试验准备。
5.1.1.1 CVT 安装。
5.1.1.1.1 变速器安装状态与车辆正常行驶时一致。
5.1.1.1.2 试验台架的输出轴应与CVT 的连接轴同轴
5.1.1.1.3 CVT 油冷器、配管应与车辆正常行驶时一致,硬管不能弯折。
5.1.1.1.4 连接处应有效密封,不得漏油。
5.1.2 试验程序,
5.1.2.1 将驱动电机设定为转速控制模式。
5.1.2.2 将负载电机设定为无负荷状态。
5.1.2.3 将 CVT 设定在D 档位置。
5.1.2.4 设定起步装置为锁止状态。
5.1.2.5 提高驱动电机转速,使变速器能获得维持正常工作的最低油压。
5.1.2.6 调节CVT 控制器,使变速器分别达到最大变速比或最小变速比时的油压设计值并稳定工作。
5.1.2.7 测量不同变速比下驱动电机转速 N₁ , 及负载电机的 Nz,N₃ ,测量时间不少于10 s, 采样
间隔不超过10 ms。
5.1.3 试验结果处理。

QC/T 1076-2017
AUTOMOTIVE INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.50
T 21
Performance requirements and testing methods for
continuously variable transmission
ISSUED ON: APRIL 12, 2017
IMPLEMENTED ON: OCTOBER 1, 2017
Issued by: Ministry of Industry and Information Technology of the
People’s Republic of China.
Table of Contents
Foreword ... 7 
1 Scope ... 8 
2 Normative references ... 8 
3 Terms and definitions ... 9 
4 Testing requirements and performance requirements ... 10 
5 Testing methods ... 13 
Performance requirements and testing methods for
continuously variable transmission
1 Scope
This Standard specifies the performance requirements and testing methods
for continuously variable transmissions (CVTs) for M1 vehicles.
This Standard applies to the M1 vehicles equipped with CVTs, while N1
vehicles equipped with CVTs and M2 vehicles under 3,500kg may be
implemented in accordance with this Standard.
2 Normative references
The following documents are essential for the application of this Standard.
For dated references, only the dated editions apply to this Standard. For
undated references, the latest editions (including all amendments) apply to
this Standard.
GB 15089 Classification of power-driven vehicle and trailers
GB 18352.5-2013 Limits and measurement methods for emissions from
light-duty vehicles (CHINA 5)
GB 19233 Measurement methods of fuel consumption for light-duty
vehicles
QC/T 465 Automotive mechanical transmission terminology and definition
ECE R10 Rev. 3 Uniform provisions concerning the approval of: vehicles
with regard to electromagnetic compatibility
ISO 11451-2 Road vehicles - Vehicle test methods for electrical
disturbances from narrowband radiated electromagnetic energy - Part 2:
Off-vehicle radiation sources
ISO 11452-4 Road vehicles - Vehicle test methods for electrical
disturbances from narrowband radiated electromagnetic energy - Part 4:
Bulk current injection (BCI)
3.11 Starting device
A device that is coupled between the engine and the transmission to transfer
engine torque to the transmission, such as a torque converter, a friction clutch,
etc.
3.12 Lock up
A connection state where the speed difference between input and output of
the starting device is 0.
3.13 Optimal fuel consumption curve
A curve connecting the lowest effective fuel consumption rate under different
operating conditions of the engine.
4 Testing requirements and performance
requirements
4.1 Testing requirements
4.1.1 Testing conditions
4.1.1.1 Environment
During the test, the temperature in the test chamber shall be 288K to 308K
(15°C to 35°C), the relative humidity shall be 20% to 60%, and the altitude
shall not exceed 1,000m.
4.1.1.2 Transmission oil
The transmission oil specified by the transmission manufacturer may be used,
and the fuel quantity is allowed to be adjusted in a manner specified by the
manufacturer.
4.1.1.3 Bench test run-in
Before performing the measurement test of the actual gear ratio and gear
ratio spread, transmission torque capacity, and steady-state efficiency, the
a) The speed of the drive motor is set to 1,000r/min to 2,000r/min, and the
torque is set to 50% of the rated torque.
b) RUN-IN 1h in the states of the largest transmission ratio, the smallest
transmission ratio, and the middle transmission ratio, respectively.
connecting shaft of the CVT.
5.1.1.1.3 The CVT oil cooler and piping shall be the same as when the
vehicle is running normally, and the rigid pipe cannot be bent.
5.1.1.1.4 The joint shall be effectively sealed and shall not leak oil.
5.1.1.2 Run-in
requirements of 4.1.3.
5.1.2 Test procedure
5.1.2.1 SET the drive motor to the speed control mode.
5.1.2.2 SET the load motor to the no-load state.
5.1.2.3 SET the CVT to the D-gear position.
5.1.2.4 SET the starting device to the lock-up state.
5.1.2.5 INCREASE the speed of the drive motor so that the transmission is
able to achieve the lowest oil pressure to maintain normal operation.
5.1.2.6 ADJUST the CVT controller so that the transmission reaches the oil
transmission ratio, respectively, and operates stably.
5.1.2.7 MEASURE the drive motor speed, N1, and N2 and N3 of the load
motor at different gear ratios. The measurement time is not less than 10s, and
the sampling interval is no more than 10ms.
5.1.2.8 REPEAT steps 5.1.2.3 to 5.1.2.7 for 3 tests.
5.1.3 Treatment of test results
5.1.3.1 CALCULATE the gear ratio according to the following formula:
Where:
I - Gear ratio;
During the test, the difference between the theoretical speed and the actual
speed of the transmission load motor shall not exceed 5%, and the input
torque at this time is the transmission torque capacity.
It shall be corrected according to the following formula:
Where:
Tc - Transmission torque capacity;
Tin - Input torque;
Tdin - Loss of torque at the input of the device.
5.3 Optimal fuel economy tracking performance of the engine
Pre-test preparation shall be carried out in accordance with the requirements
of 4.1.5.
5.3.2 Test cycle
The test cycle, as described in Annex CA of Appendix C of GB 18352.5-2013,
consists of two parts of Part 1 (urban driving) and Part 2 (suburban driving). If
the vehicle does not reach the acceleration and maximum speed values
required by the test cycle, the accelerator pedal shall be stepped through until
the required operating curve is returned. Deviation from the test cycle shall be
documented in the test report.
The load and inertia of the dynamometer shall be set according to the
provisions of Appendix C of GB 18352.5-2013.
5.3.4 Test procedure
5.3.4.1 OBTAIN the engine optimal fuel consumption rate curve map.
5.3.4.2 RUN the test according to the provisions of Appendix C of GB
18352.5-2013.
5.3.4.3 MEASURE the engine speed and torque.
5.3.4.4 The data acquisition frequency is 1Hz.
Where:
tlock - Lock-up duration;
t - Total duration of the test (excluding the idle time).
5.5 Transmission efficiency
5.5.1 Test preparation
Pre-test preparation shall be carried out in accordance with the requirements
of 5.1.1.
5.5.2 Test procedure
5.5.2.1 SET the drive motor to the speed control mode.
5.5.2.2 SET the load motor to the torque control mode.
5.5.2.4 SET the starting device to the lock-up state.
5.5.2.5 SET the drive motor speed to 1,000r/min.
5.5.2.6 ADJUST the CVT controller so that the transmission reaches the oil
pressure design value at the largest transmission ratio, and operates stably.
5.5.2.7 ADJUST the torque of the drive motor to 25%, 50%, and 75% of the
rated torque load, respectively, and MEASURE the torque of the load motor;
after the value is stable, the measurement time is not less than 10s.
5.5.2.8 The load motor speed is increased by an increment of 1,000r/min
(the maximum speed does not exceed the speed corresponding to the vehicle
unchanged. MEASURE the speed and torque of the load motor.
5.5.2.9 INCREASE the drive motor torque as specified in Table 3, and
REPEAT the test procedure 5.5.2.8.
5.5.2.10 ADJUST the CVT controller to make the transmission reach the oil
pressure design value at the middle ratio and operate stably. REPEAT the
test procedures 5.2.2.7 to 5.2.2.9.
5.5.2.11 ADJUST the CVT controller to make the transmission reach the oil
pressure design value at the smallest transmission ratio and operate stably.
REPEAT the test procedures 5.2.2.7 to 5.2.2.9.
5.6.1.3 Calibrator, microphone and wind ball.
5.6.1.4 Noise data acquisition and processing system.
5.6.2 Test requirements
5.6.2.1 The test shall be carried out in a semi-anechoic chamber with a
background noise of less than 25dB(A); and the difference between the final
measurement and the background noise shall not be less than 10dB(A).
5.6.2.2 The installation state of the CVT on the bench is the same as the
installation state on the complete vehicle. The shaft axis of the CVT input
shaft is not less than 400mm from the ground.
original vehicle.
5.6.2.4 The cooling capacity of the oil cooling unit of the test bench is
equivalent to the original vehicle, and the CVT is guaranteed to operate
normally.
5.6.2.5 During the noise measurement process, the fan cannot be used.
The CVT lubricating oil temperature is maintained at (80±5)°C, and the
individual extreme conditions may relax the temperature limit, but shall not
exceed 100°C.
5.6.2.6 The run-in specification shall be carried out in accordance with
5.6.2.7 The frequency range of noise measurement is from 200Hz to
8,000Hz.
5.6.2.8 The installation positions of the microphone are at the top, left, right
and front of the CVT center, and the distance between the microphone and
the outer envelope surface of the CVT (corresponding to the microphone
installation side) is 1m. For different layouts of CVT, when the test bench
interferes with the position of a certain measuring point, the measuring point
may be canceled, but at most one measuring point may be canceled.
5.6.3 Test procedure
background noise of the test chamber.
5.6.3.2 MEASURE the background noise of the test bench before the
transmission under test is installed on the bench. ARRANGE the
In the case of canceling a measuring point, the above formula is changed to:
5.7 Electromagnetic compatibility
5.7.1 Narrowband electromagnetic radiation test
Narrowband electromagnetic radiation testing shall be carried out in
accordance with the provisions of Annex 8 of ECE R10 Rev. 3 Uniform
provisions concerning the approval of: vehicles with regard to
   
相关标准:  QC/T 1077-2017  QC/T 1010-2023
 
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