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2025
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Truck Encyclopedia (20) How to use ECAS?
With the high-end development of domestic trucks, many cars are equipped with air suspension from the factory, and a black box is attached to the car, that is, the air suspension control handle (ECAS). But for most cardholders, although ECAS is owned, it will not be used. In this issue, let's discuss how to use the ECAS handle to help you understand your truck.
● What is ECAS?
ECAS is the full name of ECAS
electronic-controlled
air suspension
Chinese is
Electronically controlled air suspension system
The main components are:
ECAS electronic control unit, solenoid valve
Height sensor, air suspension
ECAS is not new
Its history dates back to 1986
WABCO
Innovation applies ECAS to commercial vehicles
After the "war" became famous
It is gradually becoming known to more people
As for these four letters, they can be transliterated as "Ikas", and it will be more convenient to communicate with others after remembering these three words.
三种调节模式 想调那就调那
ECAS has three modes of regulation
From left to right, it is
middle axle and rear axle adjustment
lifting bridge lifting adjustment
After the different adjustment modes are turned on
The green indicator above will illuminate
If the indicator light does not turn on
This means that the adjustment function is not activated
When the indicator light is on
You can press the up/down button
Adjust the axle height
Due to the special nature of the lifting bridge
When lifting and lowering the axle
Other functions will be locked
The same applies to adjusting the height of the middle and rear axles
The lift bridge function will lock
In addition to supporting single-axis height adjustment
ECAS also enables simultaneous multi-axis adjustment
The middle and rear axle buttons can be pressed together
Make adjustments
The hanging actually has a memory, and it can really help a lot
The second row M1/M2 is the suspension memory function
M is Memory in English
Translated into Chinese as memory
If using the suspension height memory function
After adjusting the suspension to the usual height
Press the M1/M2 plus STOP button at the same time
to activate this feature
When using memory height
The M1/M2 key can be pressed directly
It is recommended that you can set a memory position when the air suspension is the lowest, and a memory at the transportation height, which only needs to be pressed when in use.
On the far right is the suspension height reset
After pressing the reset button
The suspension will return to normal ride height
Note
When the speed > 30km/h
Height adjustment will be prohibited
Except for the return to normal altitude function
Note: If your vehicle's initial height has been adjusted, it will return directly to the adjusted initial height.
It can go up and down, it all depends on it, there is always a place for you
Finally, the suspension height is adjusted
Up arrow
Represents an increase in suspension height
Down arrow
Represents a lowered suspension
The upper and lower effects are illustrated
Red STOP on the right
Adjust the stop button for air suspension
If the suspension is adjusted
Special circumstances arise
It can be terminated in time
The effect is similar to brakes
The appearance of the handle is similar Please refer to the configuration of the model
One thing needs to be clarified
All WABCO systems ECAS
The appearance is consistent
For example, your car has 6×4 eight airbags
The rear axle does not support lifting
The rear lift button will still be retained on the handle
It can be lit up but has no practical effect
The specific function is subject to the vehicle configuration
In fact, this is also a cost reduction and efficiency measure for WABCO, a handle has eaten all over the world, and there is no need to invest in designing more different handles, but can spend more time upgrading key technologies.
ECAS is a good thing, learn and use it well to be better for you
Throughout this article, we have made a detailed introduction to the origin of ECAS development and specific usage methods, hoping to help cardholders who are currently using the system and those who plan to purchase trucks equipped with ECAS system in the future. The emergence of ECAS can help us simplify the process of vehicle work and improve convenience, for this "new thing", what we can do is to learn and use it well, so that it can truly reflect the effect of getting twice the result with half the effort.
Finally, I would like to ask you a small question, the picture shows Scania's ECAS control handle, do you know how to do this ECAS with a different appearance? Welcome to interact with us in the comment area!
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