Discover how a GOcontroll Moduline controller provides precise, modular control for semi-automatic gearbox testbenches, enabling efficient validation of shift logic, clutch timing, and transmission performance.

Transmission testing is a critical part of drivetrain development, especially for semi-automatic and dual-clutch systems where timing and coordination define performance. The GOcontroll Moduline series offers a robust and modular embedded control solution that integrates seamlessly into transmission testbenches. With flexible I/O configuration, real-time data logging, and full CAN/LIN communication support, Moduline controllers bring precision and efficiency to gearbox development—without requiring a complete vehicle setup.

Semi-automatic and dual-clutch transmissions demand accurate synchronization between gear actuators, clutches, and sensors. A GOcontroll Moduline controller can act as the core of a testbench, managing both control and data acquisition. Engineers can validate:

• Gear-shift logic and clutch synchronization

• Hydraulic or pneumatic actuator response

• Sensor calibration and timing validation

Using MATLAB Simulink or Node-RED, developers can design and deploy control algorithms that simulate vehicle operation in a controlled environment. This approach reduces cost and complexity, allowing iterative testing before integrating into a full drivetrain.

The Moduline IV or Mini I controller serves as a scalable hardware platform. Up to eight I/O modules can be installed, providing direct connectivity for:

• Solenoid valves for hydraulic or pneumatic actuation

• Pressure sensors to monitor clutch and line pressures

• RPM encoders for input/output shaft speed

• Temperature sensors for oil and mechanical component monitoring

Each input or output channel is software-configurable through the GOcontroll Simulink blockset, allowing quick adaptation to new test setups. The modularity means the same controller can handle various gearbox architectures—from automated manuals to dual-clutch systems—simply by swapping I/O modules.

Modern transmissions rely on networked control. The Moduline series supports multiple CAN 2.0B interfaces and a LIN 2.1 bus. These enable real-time communication with gearbox ECUs or Hardware-in-the-Loop (HIL) systems.
Possible configurations include:

• Direct control of clutch and actuator systems via CAN messages

• ECU-in-the-loop testing, verifying gear logic within OEM software

• Networked synchronization, sharing timing data with other control units

This interoperability ensures that GOcontroll controllers fit seamlessly into existing development infrastructures.

Transmission validation requires consistency and endurance. The Moduline platform allows semi-automated test cycles for:

• Long-term endurance tests under variable load profiles

• Calibration routines for gearshift pressure and clutch bite points

• Automated fault detection and recovery sequences

With Linux-based real-time operation and integrated scheduling tools, test scripts can run autonomously for extended periods while maintaining data integrity and system stability.

Every Moduline controller supports high-frequency sampling through configurable modules and internal data storage. Using Simulink or Node-RED dataflow, engineers can capture:

• Torque and RPM data from dynamometers

• Pressure and temperature values during shifts

• Actuator current and voltage for performance analysis

Data can be logged locally or streamed to a remote server using Ethernet or Wi-Fi connections, ensuring reliable traceability of each test cycle. Integration with HANtune via XCP protocol provides real-time visualization and calibration during test execution.

The true advantage of the GOcontroll Moduline system lies in its hardware and software flexibility. Whether testing:

• Automated manual transmissions (AMT)

• Dual-clutch transmissions (DCT)

• Hybrid drive units

The same controller can be adapted by configuring I/O modules and updating the Simulink model. This modularity allows engineers to move from prototype to production testing without redesigning control electronics.