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Chengli Automobile Industry Park

Development and application of a vehicle-mounted tailgate inspection system
Vehicle-Mounted Tailgate Inspection System: Making Trucks Safer and Better
Have you seen those big lifting platforms on the back of trucks? They help load and unload stuff. But how do we know they’re safe? A smart testing system helps check if they work right. Let’s learn about this cool system that keeps trucks safe!
Table of Contents
What’s a Tailgate and Why Test It?
Tailgates are lifting platforms on trucks that help move goods on and off. They make work faster and save money on extra loading tools. Tailgates work with:
- Car batteries for power
- Hydraulic parts that push and pull
- A flat platform that holds goods
These tailgates can be found on many trucks like: - Cold storage trucks
- Rescue trucks
- Regular delivery trucks
Before this system, it was hard to test if tailgates were safe. Now, we have a smart way to check them!
The Smart Testing System Parts
This new system has many parts that work together:
Main Parts:
- Main frame – holds everything together
- Adjustable supports – fits different tailgate types
- Sensors – measure angles, heat, and movement
- Control box – runs the tests
- Hydraulic power – makes things move
The system can test three types of tailgates:
- Vertical – goes straight up and down
- Cantilever – swings out like an arm
- Folding – bends in the middle
How the Testing System Works
The system runs tests by moving the tailgate over and over to see if it stays strong. Here’s what it checks:
Speed Tests
The system makes sure tailgates don’t move too fast:
Movement Type | Maximum Safe Speed |
---|---|
Platform opening/closing | 10° per second |
Platform rising/falling | 150 mm per second |
Platform tilting | 4° per second |
Tailgate Inspection System: Key Specs
Load Capacity
1500 kg
(+ 250 kg tailgate)
Reliability Test
33,000 Cycles
(3k Unloaded + 30k Loaded)
Hydraulic Pressure
3 MPa
(Working Pressure)
Hydraulic Power
11.67 kW
(Pump Drive Power)
Maximum Safe Operating Speeds
Strength and Durability Test
The system makes tailgates work many times to see if they break:
- 3,000 cycles with no weight
- 30,000 cycles with full weight (up to 1,500 kg)
After all these tests, the tailgate should still work well with no broken parts!
The Power Behind the System
The testing system is very strong. It can:
- Lift up to 1,500 kg (plus the 250 kg tailgate)
- Use 3 MPa of hydraulic pressure
- Pump 120 liters of fluid per minute
- Use an 11.67 kW motor to power everything
All this power helps test even the biggest tailgates used on heavy-duty trucks.
How the System Controls Everything
The system has a smart brain that runs all the tests:
- Press start – The system begins opening the platform (not faster than 10°/s)
- Angle sensors detect when the platform is flat
- System lowers the platform to the ground (not faster than 150 mm/s)
- Position sensors know when it’s on the ground
- System tilts the platform up and down (not faster than 4°/s)
- System lifts the platform back up
- System closes the platform
It does this over and over to see if the tailgate keeps working right.
Why This System Helps Everyone
This testing system helps many people:
- Truck makers know their tailgates are safe
- Truck buyers get better, safer trucks
- Workers stay safe when loading and unloading
- Companies save money by avoiding broken tailgates
Before this system, some tailgates weren’t tested well. Now we can be sure they’ll work when needed, especially for emergency rescue fire trucks that need reliable equipment.
Real-World Uses
The system has been used to test tailgates for many types of trucks:
Truck Type | Tailgate Type | What Was Found |
---|---|---|
Refrigerated trucks | Vertical & Cantilever | All speeds were safe |
Medical vehicles | Folding | Worked reliably after many uses |
Rescue trucks | All types | Found some hydraulic problems |
These tests help make sure tailgates work in real life, not just in the factory. |

What We Learned
This smart testing system helps make sure the tailgates on trucks are safe and strong. It can:
- Test different types of tailgates
- Check if they move at safe speeds
- Make sure they can work many times without breaking
- Find problems before they cause accidents
With this system, mobile medical vehicles and delivery trucks can have better, safer tailgates. This means faster work, fewer accidents, and better trucks for everyone!