GB/T 32229-2015 in English
VALIDRoad test methods for all-terrain vehicles
- Issued on:2015-12-10
- Implemented on:2016-04-01
- File Format:PDF
- Delivery:Via email within 5 business days
$359.00
| Standard No: | GB/T 32229-2015 |
| Document status: | VALID |
| Title in English: | Road test methods for all-terrain vehicles |
| Title in Chinese: | 全地形车道路试验方法 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2015-12-10 |
| Implemented on: | 2016-04-01 |
| ICS Classification: | 43.020-Road vehicles in general |
| Professional Classification: | GB-National Standard |
| Related Keywords: | core test methods test items key parameters test accuracy requirements
road test methods four-wheeled all-terrain vehicles all-terrain vehicles introduction technical background performance test system |
| Related Topics: | GBT32229
GB/T 32229-2015 |
《GB/T 32229-2015全地形车道路试验方法》由TC344（全国四轮全地形车标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本标准规定了全地形车道路试验的车辆准备工作、试验条件、试验方法、取值规则。
本标准适用于全地形车的道路试验。
Introduction
Technical background and evolution of the standard
This standard was proposed by the National Technical Committee for Standardization of Four-wheeled All-terrain Vehicles (SAC/TC344), marking the improvement of the performance test system of my country's all-terrain vehicle industry from production specifications. Compared with the specifications in the early 2000s that focused on product safety, the 2015 version systematically established a method system for 12 types of special tests such as terrain passability for the first time, reflecting the technical iteration from basic safety to comprehensive performance evaluation.
Comparative Analysis of Core Test Methods
| Test Items | Key Parameters | Test Accuracy Requirements | Special Conditions |
|---|---|---|---|
| Maximum Vehicle Speed | Speed Deviation≤3% | ±1% Accuracy | Relative Air Density Deviation≤7.5% |
| Gradability | Slope Angle (°) | 0.1° Resolution | Consistent Slope in 20m Test Area |
| Handling Stability | Snaking Time | 0.01s timing | 12m stake spacing |
Key test technical points
1. Vehicle preparation specifications
The standard clearly requires a 200km running-in mileage (Article 3.1.2), and stipulates that 18 inspections including tire pressure (±5kPa) and lubricant brand must be carried out after running-in. Special emphasis is placed on the test instruments meeting the following requirements:
- Speed measurement: vehicle-mounted road test instrument error ≤0.5%
- Time measurement: three first-level stopwatches cross-validated
- Environmental monitoring: anemometer error ≤0.4m/s
2. Data processing rules
Unique "round-trip deviation rate" calculation formula (Article 3.3.1):
e=(2|AB|/(A+B))×100%
When the deviation rate exceeds the standard limit (such as 10% for accelerated test), the data will be invalidated. This mechanism effectively ensures the repeatability of the test data.
Typical application case
When a certain model of 800cc all-terrain vehicle was subjected to a hill climbing test, the correction value was calculated using formula (11):
α=arcsin((ms/m)×(i/is)×sinβ)
By adjusting the loading mass so that t1=t2-t1, the final measured standard climbing angle was 32.5°, which was 2.3° lower than the value claimed by the company, revealing a problem with the transmission system matching.
Suggestions for the implementation of the standard
- Environmental control: It is recommended to establish an indoor environmental compensation system to solve the site problem of instantaneous wind speed ≤5m/s required by Article 3.2.5
- Instrument selection: Electronic timers (0.1ms resolution) and GPS speed analyzers that comply with IEC standards are preferred
- Staff training: The strict limit on the driver's height of (1.75±0.05)m requires the establishment of a special assessment mechanism
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