This is where the shift commands received from the control computer are executed and the various transmission components are activated.
In a standardized process, up to 20 different values are simultaneously compared with reference values as well as protocolled.
If the control computer is installed along with the valve body case inside the transmission, this is termed mechatronics.
The solenoids precisely regulate the oil flow within the valve body towards the individual transmission components.
All standard valvebodies are repaired and tested in house. Our test stands and test equipment are made to work with real-world measurements, almost like a built-in gear. Through these hydraulic valvebody tests, valves and individual technical elements can be tested accurately.
When repairing the valvebody, highest precision and cleanliness is required. Even the slightest contamination or wear can have an impact on the entire switching behaviour and the performance of a transmission. In the worst case, this can result in a failure of the entire transmission.
These complex systems are refurbished in house. Needless to say, that we verify the perfect condition of the valvebodies by using our test stands.
By using digital control systems we are able to meassure the slightest deviation. In this way we can calibrate the solenoid valves and the valvebodies precisely.
We have adapter plates, settings and testing programmes for all common automatic transmissions.
Fahrzeugtechnik Hetzel provides high quality valvebodies which are tested on the most modern testing stands at fair prices.
The more information you provide us with, the better our valve body specialist can solve your problem. Please use our valve body order form.
Details such as the degree of contamination of the valve body as well as the colour, smell and consistency of the oil are very important and helpful indicators of a possible source of error.
During the visual inspection the case is checked for external damage.
In order to be able to test your valve body on our test benches, it must first be cleaned extremely carefully. Depending on the type of valve body, it may have to be disassembled in some cases and certain wearing parts have to be replaced in advance. The valve body is very sensitive and a certain degree of contamination can already massively affect the function.
Each type of valve body is different in its construction and requires a special testing plate, a special cable set and a specific written test program for our test bench. Before the test can be performed, the test bench is prepared and modified for your valve.
After the test bench has been prepared, the actual test run can begin. Specially created test scripts are used to simulate various real-life conditions in the vehicle and to test your valve body under various pressure levels and temperatures.
Based on the test results, our valve body specialist can now tell you from experience exactly where the problem lies with your valve.
Before further steps are taken and before a repair or refurbishment is possible, everything is coordinated with you and proceed correspondingly.
Costs depend strongly on the type of valve body and the damage existing.