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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
本標準依照GB／T 1.1—2009給出的規則起草。
本標準代替GB／T 24157—2009《電動摩托車和電動輕便摩托車 能量消耗率和續駛里程 試驗方法》。
本標準與GB／T 24157—2009相比，主要修訂內容如下：
——增加了“剩余電量指示”的相關定義和試驗方法；
——修改了試驗終止條件，將“累計超過4s”修改為“持續4s以上”；
——修改了試驗速度、時間公差；
——修改了試驗結果的計算方法，取消當量續駛里程和當量能量消耗率的折算，修改為分別記錄兩種試驗工況結果；
——修改了電動輕便摩托車的循環工況。
本標準由中華人民共和國工業和信息化部提出。
本標準由全國汽車標準化技術委員會(SAC／TC 114)歸口。
本標準所代替標準的歷次版本發布情況為：
——GB／T 24157—2009。
電動摩托車和電動輕便摩托車續駛里程
及殘電指示試驗方法
1 范圍
本標準規定了電動摩托車和電動輕便摩托車續駛里程、能量消耗率及剩余電量指示的試驗方法。
本標準適用于以儲能蓄電池為唯一動力來源的電動摩托車和電動輕便摩托車，混合動力摩托車純電動驅動模式可參照執行。
2 規范性引用文件
下列文件對于本文件的應用是必不可少的。凡是注日期的引用文件.僅注日期的版本適用于本文件。凡是不注日期的引用文件，其最新版本(包括所有的修改單)適用于本文件。
GB／T 5359.1 摩托車和輕便摩托車術語 第1部分：車輛類型
GB／T 5378 摩托車和輕便摩托車道路試驗方法
GB 14622 摩托車污染物排放限值及測量方法(中國第四階段)
GB 18176 輕便摩托車污染物排放限值及測量方法(中國第四階段)
GB／T 18385—2005 電動汽車 動力性能 試驗方法
GB／T 19596 電動汽車術語
GB 24155 電動摩托車和電動輕便摩托車安全要求
GB／T 24156—2009 電動摩托車和電動輕便摩托車 動力性能 試驗方法
GB／T 24158 電動摩托車和電動輕便摩托車 通用技術條件
3 術語和定義
GB／T 19596 ，GB／T 5359.1和GB／T 24158界定的以及下列術語和定義適用于本文件。
3.1
試驗車質量 mass of test vehicle
整車整備質量與試驗所需加載質量之和。加載質量為(75±5)kg，包括駕駛員與試驗儀器。試驗車質量都應包含動力蓄電池的質量。
3.2
續駛里程 range
從動力蓄電池完全充電狀態開始.按規定方法行駛直至設定的試驗終止條件，能連續正常行駛的距離，單位為km。
3.3
能量消耗率 energy consumption
從動力蓄電池完全充電狀態開始，按規定方法進行續駛里程試驗，試驗結束后重新充電至完全充電狀態，期間從電網得到的電能除以續駛里程所得到的值，單位為W·h／km。
3.4
剩余電量 state of charge
動力蓄電池放電后，剩下的容量與額定容量之比，通常以百分比表示。
3.5
剩余電量指示 indication for the state of charge
將剩余電量以指針、指示燈、數字、數據條等形式顯示出來供查看.剩余電量指示典型樣式參考附錄A。
3.6
剩余電量警示 warning for the state of charge
當剩余電量低于警示值時，以聲、光信號發出警告，提示盡快充電。
3.7
剩余電量警示里程 range of warning for the state of charge
當剩余電量警示發出后，車輛仍能正常行駛的距離，單位為km。
3.8
剩余電量警示裕度 margin of warning for the state of charge
剩余電量警示里程實測值和制造商標稱值之間的差值與續駛里程之比，以百分比表示。
4.1 試驗車輛條件
4.1.1 試驗車輛應裝備剩余電量指示裝置和剩余電量警示裝置，并符合GB 24155的規定。
4.1.2 試驗車輛配置的動力蓄電池為生產一年內，且充、放電次數不大于50次。
4.1.3 試驗車輛在試驗前至少用所配套的動力蓄電池走合300km，或依制造商建議的程序磨合至車輛達穩定狀態。磨合依照說明書指定規范進行；如無規定，則參照5.3.1規定的方法進行。
4.1.4 試驗車輛應按照使用維護說明書及有關技術文件進行維護保養，使之處于正常技術狀態。
4.1.5 試驗車輛應依據3.1的規定加載。如果試驗在底盤測功機上進行，按GB 18176或GB 14622規定的試驗車質量加載。
4.1.6 輪胎氣壓應符合產品使用說明書的規定。
4.1.7 除必需的設備和車輛日常操作部件外，試驗車輛的照明、信號裝置以及輔助裝置應關閉。
4.2 試驗道路條件
4.2.1 試驗道路應為瀝青或混凝土道路，路面應平坦、干燥、整沽。若為環形道路，則轉彎半徑應不小于50m。
4.2.2 試驗路段應保持水平，縱向坡度不超過1％，且全長內任意兩點之間的高度差不準許超過1m，橫向坡度不準許超過3％。
4.3 試驗儀器的分辨率和準確度
試驗儀器的分辨率和準確度見表1。
