GB/T 24945-2021 English PDF (GBT24945-2021)

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GB/T 24945-2021: Tri-wheel vehicles -- General specifications
GB/T 24945-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 65.060
CCS T 54
Replacing GB/T 24945-2010
Tri-wheel Vehicles - General Specifications
ISSUED ON: OCTOBER 11, 2021
IMPLEMENTED ON: MAY 1, 2022
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative References ... 5 
3 Terms and Definitions ... 6 
4 Model Compilation Requirements ... 7 
5 Technical Requirements ... 7 
6 Test Methods ... 15 
7 Inspection Rules ... 16 
8 Delivery ... 22 
9 Transportation and Storage ... 22 
Bibliography ... 23 
Tri-wheel Vehicles - General Specifications
1 Scope
This document specifies the model compilation requirements, technical requirements,
test methods, inspection rules, delivery, transportation and storage of tri-wheel vehicles.
This document is applicable to tri-wheel vehicles.
2 Normative References
The contents of the following documents constitute indispensable clauses of this
document through the normative references in the text. In terms of references with a
specified date, only versions with a specified date are applicable to this document. In
terms of references without a specified date, the latest version (including all the
modifications) is applicable to this document.
GB/T 2828.1 Sampling Procedures for Inspection by Attribute - Part 1: Sampling
Schemes Indexed by Acceptance Quality Limit (AQL) for Lot-by-lot Inspection
GB/T 18386 Test Methods for Energy Consumption and Range of Electric Vehicles
GB/T 19119 Tri-wheel Vehicles and Low-speed Goods Vehicles - Prescription for
Installation of Lighting and Light Signaling Devices
GB/T 19123 Tri-wheel Vehicles and Low-speed Goods Vehicles - Photometric
Characteristics of Turn Signal Lamps
GB/T 19124 Tri-wheel Vehicles and Low-speed Goods Vehicles - Head Lamps
GB/T 19125 Tri-wheel Vehicles and Low-speed Goods Vehicles - Photometric
Characteristics of Front and Rear Position Lamps, Stop Lamps
GB/T 19129 Tri-wheel Vehicles and Low-speed Goods Vehicles - Electric Horn -
Performance Requirement and Methods
GB/T 19134 Tri-wheel Vehicles and Low-speed Goods Vehicles - Rear View Mirrors -
Requirements of Performance and Installation
GB/T 19135 Tri-wheel Vehicles and Low-speed Goods Vehicles - Photometric
Characteristics of Reversing Lamps
GB/T 20234.1 Connection Set for Conductive Charging of Electric Vehicles - Part 1:
General Requirements
4 Model Compilation Requirements
The composition and rules of model compilation of tri-wheel vehicle products shall
satisfy the stipulations of JB/T 10197.
5 Technical Requirements
5.1 General Requirements
5.1.1 Tri-wheel vehicles shall be manufactured in accordance with the product
drawings and technical documents approved by the prescribed procedures.
5.1.2 The parts and accessories of the tri-wheel vehicles shall be qualified in the
inspection before they are assembled.
5.1.3 The parts and accessories of the tri-wheel vehicles connected by fasteners shall
be reliably connected as required, and there shall be no looseness. The tightening
torque of fasteners in important parts shall comply with the stipulations of the product
drawings or operating instructions.
5.1.4 The appearance of the tri-wheel vehicles shall be neat and tidy, and reasonably
arranged; the various parts shall be free of defects. The vehicle body shall be regular;
the height difference between the left and right symmetrical parts of the outer edge of
the vehicle body shall be not greater than 40 mm.
5.1.5 The appearance quality, such as: the painting, castings and forgings, welding
parts and metal coating of the tri-wheel vehicles shall comply with the stipulations of
JB/T 11223.
5.1.6 The minimum ground clearance of the tri-wheel vehicles shall be greater than or
equal to 160 mm.
5.1.7 The tri-wheel vehicles shall not manifest oil leakage, water leakage or air leakage,
nor shall mud water seep into the vehicle body.
5.1.8 The fully enclosed cab shall not manifest water leakage.
5.1.9 The specific power of the tri-wheel vehicles shall be not less than 4.0 kW/t.
5.1.10 During the operation and running of the tri-wheel vehicles, there shall be no
abnormal noise in the engine, transmission and other components. After the operating
force is removed, all control handles and pedals with automatic reset function shall be
able to be automatically reset.
5.1.11 For a three-wheeled vehicle with a steering handle or with a center-mounted
steering wheel, 1 driver is authorized to ride; the seat cushion width shall be greater
than or equal to 400 mm; and the seat depth shall be greater than or equal to 400 mm.
For left-steering tri-wheeled vehicle, it is approved for 1 passenger, in addition to the
driver. The seat cushion width shall be greater than or equal to 350 mm; the seat depth
shall be greater than or equal to 300 mm; and the seat shall not increase the contour-
size of the tri-wheeled vehicle. If the above conditions are not met, only 1 driver is
allowed to ride.
5.1.12 The steering device of the tri-wheel vehicles shall be flexible, easy to operate
and free of block. During the wheel steering process, there shall be no interference
with other components. The tri-wheel vehicles shall not deviate when driving on a flat,
hard, dry and clean road; the steering device shall not manifest swaying, poor steering
feel or other abnormal phenomena. The steering gear of the tri-wheel vehicles shall
comply with the stipulations of GB/T 23930.
5.1.13 The clutch of the tri-wheel vehicles shall be smoothly engaged and completed
disengaged. The free stroke of the clutch pedal is 20 mm ~ 40 mm. The pedal position
and operating force shall comply with the stipulations of GB/T 23918.
5.1.14 The free stroke of the brake pedal of the tri-wheel vehicles is 20 mm ~ 40 mm.
The pedal position and operating force shall comply with the stipulations of GB/T 23918.
5.1.15 The position and operating force of the parking brake device shall comply with
the stipulations of GB/T 23918.
5.1.16 The position and operating force of the steering control mechanism of the tri-
wheel vehicles shall comply with the stipulations of GB/T 23918.
5.1.17 The position and operating force of the engine throttle control device,
transmission control device and self-unloading control device shall comply with the
stipulations of GB/T 23918.
5.1.18 The operating position dimensions of the driver of the tri-wheel vehicles shall
comply with the stipulations of GB/T 21422.
5.1.19 The type and pattern of tires on the same axle shall be the same, and
compatible with the maximum design vehicle speed. The load of fully loaded tire shall
not exceed the rated load of the tire.
5.1.20 The lateral swing and radial runout of the tri-wheel vehicle wheel assembly shall
be not greater than 5 mm.
5.1.21 The tri-wheel vehicles shall be equipped with generators with good technical
performance and a power of not less than 150 W. The performance of the generators
shall comply with the stipulations of GB/T 23923.
5.1.22 The storage batteries installed in the tri-wheel vehicles shall be firmly installed,
and able to maintain the normal operating voltage.
device. Under the condition of overcurrent specified by the electric vehicle
manufacturer or shirt-circuit of the circuit connected to the power battery, the
connection circuit with ...