T/CSAE 162-2020 in English
VALIDPerformance requirements and methods of bench test for suspension system of passenger car
- Issued on:2020-11-13
- Implemented on:-
- File Format:PDF
- Delivery:Via email within 5 business days
$437.00
Introduction
Interpretation of the core content of the standard
| Test type | Load direction | Target load | Number of cycles |
|---|---|---|---|
| Longitudinal durability | Front and rear bidirectional | Braking condition 0.8g/Acceleration condition 0.4g | 200,000 times (no crack) |
| Lateral durability | Inside and outside bidirectional | 1.2G (outside→inside)/0.4G (inside→outside) | 200,000 times (torque maintained at 70%) |
| Vertical strength | Single-axis vertical | ≥7G | Static loading to yield |
Key technical points
1. Principle of test load calculation
The longitudinal force is calculated by the torque balance method, with the wheel contact point as the fulcrum, and the formula:
FZ1 = (G·b ± m·a·hg)/L
Wherein the acceleration values are: +0.8g for forward braking and -0.5g for reverse braking.
2. Suspension type difference requirements
- McPherson suspension: Special attention should be paid to the durability of the sliding strut assembly
- Torsion beam suspension: The anisotropic vertical test is required to be 500,000 times
- Multi-link suspension: Composite loading test is a required item
Implementation suggestions
1. Key steps in test preparation
- The sample installation posture remains in the full load state position
- The bolt torque is applied according to the lower limit of the design value and marked
- The sample is fully sprayed with white paint for crack observation
2. Solutions to common problems
| Problem phenomenon | Possible cause | Improvement measures |
|---|---|---|
| Early failure of rubber bushing | Excessive temperature rise during test | Add forced cooling system |
| Loose fasteners | Insufficient preload force | Tighten using torque + angle method |
Standard evolution analysis
Compared with GB/T 26134-2010, the innovations of this standard are:
- Added special test requirements for electric vehicle suspension bracket
- Introduced composite loading conditions to simulate actual road conditions
- Clear differentiated acceptance criteria for different suspension types
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