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This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 24157-2009 Electric motorcycles and electric mopeds - Energy consumption and range - Test procedures.
The following main revisions have been made with respect to GB/T 24157-2009:
——The relevant definition and test method of "indication for the state of charge” are added;
——The test termination conditions are modified, i.e. "more than 4s accumulatively" is changed to "last for more than 4s";
——The test speed and time tolerance are modified;
——The calculation method of test results is modified, i.e. the conversion of equivalent range and equivalent energy consumption is canceled, and the results of two test conditions are recorded separately;
——The cycle condition of electric mopeds is modified.
This standard was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This standard is under the jurisdiction of National Technical Committee of Auto Standardization (SAC/TC 114).
The previous edition of this standard is as follows:
——GB/T 24157-2009.
Test methods of range and indication for the state of charge for electric motorcycles and electric mopeds
1 Scope
This standard specifies the test methods of range, energy consumption and indication for the state of charge for electric motorcycles and electric mopeds.
This standard is applicable to electric motorcycles and electric mopeds with energy storage batteries as the only power source, and may also serve as a reference for the pure electric driving mode for hybrid motorcycles.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendment) applies.
GB/T 5359.1 Term for motorcycles and mopeds - Part 1: Types of vehicles
GB/T 5378 Methods of road test for motorcycles and mopeds
GB 14622 Limits and measurement methods for emissions from motorcycles (China IV)
GB 18176 Limits and measurement methods for emissions of pollutants from mopeds (China IV)
GB/T 18385-2005 Electric vehicles - Power performance - Test method
GB/T 19596 Terminology of electric vehicles
GB 24155 Safety specifications for electric motorcycles and electric mopeds
GB/T 24156-2009 Electric motorcycles and electric mopeds - Power performance - Test methods
GB/T 24158 General specifications for electric motorcycles and electric mopeds
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 19596, GB/T 5359.1 and GB/T 24158 as well as the following apply.
3.1
mass of test vehicle
complete kerb mass plus the loading mass required for the test. The loading mass, including the mass of driver and test instruments, is (75±5)kg. The mass of test vehicle shall include the mass of power battery
3.2
range
distance, in km, that the vehicle can run normally and continuously, from the fully charged state of the power battery to the set test termination condition
3.3
energy consumption
value obtained by dividing the electric energy obtained from the grid by the range, from the fully charged state of the power battery to recharging to the fully charged state after the range test is conducted according to the prescribed method, in W·h/km
3.4
state of charge
ratio of the remaining capacity to the rated one after the power battery is discharged, usually expressed as a percentage
3.5
indication for the state of charge
display of the state of charge in the form of pointer, indicator light, digit, data bar, etc. for viewing. Refer to Annex A for typical types of indication for the state of charge
3.6
warning for the state of charge
warning by sound and light signals given to prompt charging as soon as possible when the state of charge is below the warning value
3.7
range of warning for the state of charge
distance, in km, that the vehicle can still run normally after the warning for the state of charge is given
3.8
margin of warning for the state of charge
ratio of the difference between the measured value of the range of warning for the state of charge and the manufacturer's nominal value to the range, expressed as a percentage
4 Test conditions
4.1 Test vehicle conditions
4.1.1 The test vehicle shall be equipped with indicating and warning devices for the state of charge, and meet the requirements of GB 24155.
4.1.2 The power battery that the test vehicle is equipped with shall be produced within a year, and charged and discharged for no more than 50 times.
4.1.3 Before the test, the test vehicle shall run in for at least 300km with the matched power battery, or run in according to the procedure recommended by the manufacturer until the vehicle reaches a stable state. The running-in process shall be carried out according to the specifications specified in the instructions; if not specified, refer to the method specified in 5.3.1.
4.1.4 The test vehicle shall be maintained according to the use and maintenance instructions and relevant technical documents, so as to be in normal technical condition.
4.1.5 The test vehicle shall be loaded according to 3.1. If the test is carried out on a chassis dynamometer, the test vehicle shall be loaded according to the mass of test vehicle specified in GB 18176 or GB 14622.
4.1.6 The tyre pressure shall comply with the product use instructions.
4.1.7 Except the necessary equipment and daily operation parts of the vehicle, the lighting and signaling devices as well as auxiliary devices of the test vehicle shall be turned off.
4.2 Test road conditions
4.2.1 The test road shall be asphalt or concrete road, and the pavement shall be flat, dry and clean. In case of a ring road, the turning radius shall be no less than 50m.
4.2.2 The test section shall be kept level, with the longitudinal gradient not exceeding 1%, the transverse gradient not exceeding 3%, and the height difference between any two points in the whole length not exceeding 1m.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Test conditions
5 Test methods
Annex A (Informative) Reference legends for typical types of indication for the state of charge
Annex B (Informative) Table for the record of test
Annex C (Normative) Running cycle and setting of chassis dynamometer
前言
本标准依照GB／T 1.1—2009给出的规则起草。
本标准代替GB／T 24157—2009《电动摩托车和电动轻便摩托车 能量消耗率和续驶里程 试验方法》。
本标准与GB／T 24157—2009相比，主要修订内容如下：
——增加了“剩余电量指示”的相关定义和试验方法；
——修改了试验终止条件，将“累计超过4s”修改为“持续4s以上”；
——修改了试验速度、时间公差；
——修改了试验结果的计算方法，取消当量续驶里程和当量能量消耗率的折算，修改为分别记录两种试验工况结果；
——修改了电动轻便摩托车的循环工况。
本标准由中华人民共和国工业和信息化部提出。
本标准由全国汽车标准化技术委员会(SAC／TC 114)归口。
本标准所代替标准的历次版本发布情况为：
——GB／T 24157—2009。
电动摩托车和电动轻便摩托车续驶里程
及残电指示试验方法
1 范围
本标准规定了电动摩托车和电动轻便摩托车续驶里程、能量消耗率及剩余电量指示的试验方法。
本标准适用于以储能蓄电池为唯一动力来源的电动摩托车和电动轻便摩托车，混合动力摩托车纯电动驱动模式可参照执行。
2 规范性引用文件
下列文件对于本文件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文件。凡是不注日期的引用文件，其最新版本(包括所有的修改单)适用于本文件。
GB／T 5359.1 摩托车和轻便摩托车术语 第1部分：车辆类型
GB／T 5378 摩托车和轻便摩托车道路试验方法
GB 14622 摩托车污染物排放限值及测量方法(中国第四阶段)
GB 18176 轻便摩托车污染物排放限值及测量方法(中国第四阶段)
GB／T 18385—2005 电动汽车 动力性能 试验方法
GB／T 19596 电动汽车术语
GB 24155 电动摩托车和电动轻便摩托车安全要求
GB／T 24156—2009 电动摩托车和电动轻便摩托车 动力性能 试验方法
GB／T 24158 电动摩托车和电动轻便摩托车 通用技术条件
3 术语和定义
GB／T 19596 ，GB／T 5359.1和GB／T 24158界定的以及下列术语和定义适用于本文件。
3.1
试验车质量 mass of test vehicle
整车整备质量与试验所需加载质量之和。加载质量为(75±5)kg，包括驾驶员与试验仪器。试验车质量都应包含动力蓄电池的质量。
3.2
续驶里程 range
从动力蓄电池完全充电状态开始.按规定方法行驶直至设定的试验终止条件，能连续正常行驶的距离，单位为km。
3.3
能量消耗率 energy consumption
从动力蓄电池完全充电状态开始，按规定方法进行续驶里程试验，试验结束后重新充电至完全充电状态，期间从电网得到的电能除以续驶里程所得到的值，单位为W·h／km。
3.4
剩余电量 state of charge
动力蓄电池放电后，剩下的容量与额定容量之比，通常以百分比表示。
3.5
剩余电量指示 indication for the state of charge
将剩余电量以指针、指示灯、数字、数据条等形式显示出来供查看.剩余电量指示典型样式参考附录A。
3.6
剩余电量警示 warning for the state of charge
当剩余电量低于警示值时，以声、光信号发出警告，提示尽快充电。
3.7
剩余电量警示里程 range of warning for the state of charge
当剩余电量警示发出后，车辆仍能正常行驶的距离，单位为km。
3.8
剩余电量警示裕度 margin of warning for the state of charge
剩余电量警示里程实测值和制造商标称值之间的差值与续驶里程之比，以百分比表示。
4.1 试验车辆条件
4.1.1 试验车辆应装备剩余电量指示装置和剩余电量警示装置，并符合GB 24155的规定。
4.1.2 试验车辆配置的动力蓄电池为生产一年内，且充、放电次数不大于50次。
4.1.3 试验车辆在试验前至少用所配套的动力蓄电池走合300km，或依制造商建议的程序磨合至车辆达稳定状态。磨合依照说明书指定规范进行；如无规定，则参照5.3.1规定的方法进行。
4.1.4 试验车辆应按照使用维护说明书及有关技术文件进行维护保养，使之处于正常技术状态。
4.1.5 试验车辆应依据3.1的规定加载。如果试验在底盘测功机上进行，按GB 18176或GB 14622规定的试验车质量加载。
4.1.6 轮胎气压应符合产品使用说明书的规定。
4.1.7 除必需的设备和车辆日常操作部件外，试验车辆的照明、信号装置以及辅助装置应关闭。
4.2 试验道路条件
4.2.1 试验道路应为沥青或混凝土道路，路面应平坦、干燥、整沽。若为环形道路，则转弯半径应不小于50m。
4.2.2 试验路段应保持水平，纵向坡度不超过1％，且全长内任意两点之间的高度差不准许超过1m，横向坡度不准许超过3％。
4.3 试验仪器的分辨率和准确度
试验仪器的分辨率和准确度见表1。
