GB/T 40078-2021Fuel efficiency of wheeled tractors—Evaluation criteria (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

1 Scope

This document specifies the fuel economy evaluation indicators and test methods for wheeled tractors.

This document applies to the evaluation of fuel economy indicators for wheeled tractors (hereinafter referred to as tractors).

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 3871.3 Agricultural Tractor Test Procedure Part 3: Power Output Shaft Power Test

GB/T 3871.9 Agricultural Tractor Test Procedure Part 9: Traction Power Test

GB/T 28239-2020 Non-road diesel engine fuel consumption rate limit and test method

3 Terms and definitions

There are no terms and definitions that need to be defined in this document.

4 Evaluation index of tractor fuel economy

See Table 1 for the evaluation indexes of tractor power output shaft fuel consumption rate and traction specific fuel consumption. For no power output shaft or unsuitable for power output For tractors with axle test, the diesel engine fuel consumption rate shall be assessed according to the provisions of Chapter 7 of GB/T 28239-2020.

Note: The power section of the direct drive tractor is consistent with JB/T 11320-2013.

5 Test method

5.1 Under the test equipment and test conditions specified in GB/T 3871.3, the fuel consumption rate test of the power output shaft shall be in accordance with the working conditions specified in Table 2.