GB/T 44255-2024 土方机械 纯电动液压挖掘机能量消耗量 试验方法

ICS53.100

CCSP97

中华人民共和国国家标准

GB/T44255—2024

土方机械纯电动液压挖掘机能量

消耗量试验方法

Earth⁃movingmachinery—Energyconsumptionforbatteryelectrichydraulic

excavators—Testmethods

2024⁃07⁃24发布2024⁃07⁃24实施

国家市场监督管理总局

国家标准化管理委员会发布

GB/T44255—2024

目次

前言··························································································································Ⅲ

1范围·······················································································································1

2规范性引用文件········································································································1

3术语和定义··············································································································1

4试验条件·················································································································1

5能量消耗量的测量方法·······························································································2

6试验方法·················································································································3

7续航能力评估···········································································································7

8作业效率评估···········································································································8

9能量效率评价···········································································································8

附录A（资料性）试验记录表························································································10

图1使用电压计和电流计对动力电池的能量消耗进行测量的方法示例·····································3

图290°回转挖掘装载作业示意图····················································································5

图3平地作业试验示意图······························································································6

表1测量参数和准确度·································································································2

表2挖掘装载作业参数·································································································4

表3平地距离·············································································································6

表A.1电动挖掘机充电试验记录表················································································10

表A.2电动挖掘机挖掘装载作业试验能量消耗量记录表·····················································10

表A.3电动挖掘机平地作业试验能量消耗量记录表···························································10

表A.4电动挖掘机行走试验能量消耗量记录表·································································11

表A.5电动挖掘机待机试验能量消耗量记录表·································································11

Ⅰ

GB/T44255—2024

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规

定起草。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由中国机械工业联合会提出。

本文件由全国土方机械标准化技术委员会（SAC/TC334）归口。

本文件起草单位：柳州柳工挖掘机有限公司、徐州徐工挖掘机械有限公司、山东临工工程机械有限

公司、中联重科土方机械有限公司、三一重机有限公司、国机重工集团常林有限公司、福建晋工机械有

限公司、天津工程机械研究院有限公司、力士德工程机械股份有限公司、厦门厦工机械股份有限公司、

江苏徐工国重实验室科技有限公司、中铁八局集团电务工程有限公司、太重集团（上海）装备技术有限

公司、江苏天煤机电科技有限公司、天津工程机械研究院有限公司检测技术服务分公司。

本文件主要起草人：刘晓强、刘跃吉、刘淑强、吴元峰、崔会喜、张亚军、吕志忠、吴红丽、高公如、

陈先武、刘建、晏贵章、尹满义、冯俊伟、王姜骅、张少波、孙宽、张晓辉。

Ⅲ

GB/T44255—2024

土方机械纯电动液压挖掘机能量

消耗量试验方法

1范围

本文件规定了纯电动液压挖掘机能量消耗量的试验条件，描述了能量消耗量的试验方法，以及纯

电动液压挖掘机的续航能力评估、作业效率评估和能量效率评价的方法。

本文件适用于在工作过程中采用机载动力电池（最大工作电压为B级电压）作为唯一动力源，工作

质量不大于50000kg的纯电动液压挖掘机的测试，大于50000kg的纯电动液压挖掘机参照执行。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文

件，仅该日期对应的版本适用于本文件；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/T6572土方机械液压挖掘机术语和商业规格

GB/T21153土方机械尺寸、性能和参数的单位与测量准确度

GB/T36695土方机械液压挖掘机燃油消耗量试验方法

GB/T44254电动土方机械术语

3术语和定义

GB/T6572和GB/T44254界定的以及下列术语和定义适用于本文件。

3.1

续航能力allelectricworkingtime

纯电动液压挖掘机在动力电池完全充电状态下，以规定的条件和方法进行试验，计算得到的最长

工作时间。

注：单位为小时（h）。

4试验条件

4.1试验环境

试验环境应满足下列条件：

——环境温度：5℃~35℃；

——相对湿度：小于95%；

——风速：不大于5m/s。

4.2试验场地

试验通行区域应为平整地面，作业区域满足6.1规定的试验项目需求。挖掘装载作业试验用土壤

密度1500kg/m3~1800kg/m3。

1

GB/T44255—2024

4.3测量参数和准确度

测量参数和准确度应符合表1的规定，表1中不涉及的其他测量值的准确度应符合GB/T21153

的规定。

表1测量参数和准确度

测量参数单位名称单位符号准确度分辨率

时间秒s±0.10.01

距离米m±0.1%0.01

温度摄氏度℃±1℃0.1

转速转每分r/min±0.5%1

质量千克kg±2%10

电能瓦时W·h±1%1

电压伏特V±0.3%FSDa或读数的±1%b0.1

电流安培A±0.3%FSDa或读数的±1%b，c0.1

aFSD：最大显示或标尺的长度。

b取较大者。

c电流积分频率20Hz或更高。

4.4试验机器

4.4.1配置

整机配置达到制造商规定的标准状态，应使动力电池至少经历1次从满电直至荷电状态（SOC）最

低值的过程；新出厂整机电池健康度（SOH）应不小于97%。

4.4.2热车

试验前整机应进行充分热车，液压油温度不应低于50℃，电池温度应达到电池制造商规定的电池

加热关闭的温度。

4.4.3空调和附属电器

4.4.3.1如安装有空调，在试验过程中应关闭空调。

4.4.3.2在试验过程中电池热管理系统应按照制造商规定状态工作。

4.4.3.3试验期间，应关闭照明、收音机、音响等附属电器。

4.5配套用运输设备

挖掘装载作业试验应配备与试验挖掘机相适应的运输设备，其容积应满足6.3中1次挖掘装载作

业试验的物料装载。

5能量消耗量的测量方法

5.1测试仪器

动力电池电流宜使用夹装式或密闭式电流传感器测量。电流传感器应通过连接到动力电池的电

2

GB/T44255—2024

缆对动力电池电流进行测量，所测电流应为动力电池总电流。

在屏蔽线的情况下，应对测试电缆进行处理，以降低屏蔽层对测试数据的影响。

5.2测量方法

使用电压计和电流计对动力电池的能量消耗量进行测量的方法示例见图1。电压计和电流计可

使用直流电力计，采样周期不大于50ms。

记录试验中消耗的电流值和电压值的累计，按公式（1）计算动力电池的能量消耗量。

∑()×()×

［ItVtTs］

=…………（1）

E3600

式中：

E——试验中动力电池的能量消耗量，单位为瓦时（W·h）；

（It）——动力电池随时间变化的充放电电流值，单位为安培（A）；

V（t）——动力电池随时间变化的充放电电压值，单位为伏特（V）；

s

Ts——采样周期，单位为秒（）。

图