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Powertrain Transmission

Class 3-8 truck – automatic

Titan Class 3-8 Truck - Automatic system for powertrain transmission applications. Test stations designed and built to simulate a fully functional commercial truck. Using two VFD Controlled Electrical Motors these stations simulate the input shaft from the engine and the output shaft from the drivetrain to make these transmission feel like they are at home in the truck they are meant for. Automatic transmissions commanded via CAN bus from a simulated Driver Interface Device (DID) to engage FNR gears. The transmission determines shifting points based on input/output shaft speeds, requested acceleration, and torque. These are CAN-based systems with the transmission controller and the engine simulation control working in harmony to apply the right amount of torque, engage/disengage the clutch, command the shift, and to smoothly transition from one gear to the next. The system includes a full computer-based NVH system incorporating accelerometers, microphones, laser vibrometers, torque and speed sensors. Live data is captured for the full test of the transmission, recording live data at up to 10khz per channel.

Computer based control and data acquisition system 3 Test Computers, 1 For test and control, 1 for NVH, and 1 for engine simulation 100 HP VFD controlled input drive motor for engine simulation 250 HP VFD controlled output drive motor Contains integrated production transmission clutch to allow for easy change out and replacement Charged Pneumatic system for clutch control Automatic mating and connections by means of clamping and positioning servo slides Regenerative Electric motors 4 vehicle and engineering CAN busses CAN J1939 compliant Continuous DTC monitoring and CAN Logging DID (Driver Interface Device) Simulation for (FNR) commanding of the transmission. Factory AMS integrated for test automation Full NVH system including accelerometers, microphones, contactless laser vibrometer, torque, and speed sensors. Full gas engine simulation using regenerative VFD controlled electrical motor and CAN Bus System Automatic FTP of results and test data to offsite server and engineering location Real Time Remote monitoring for system and product troubleshooting and diagnostics Battery and Ignition Power Up and Electrical Connections Configuration of the Transmission Control Module (TCM) over the CAN bus to properly identify it and record data for traceability. The ID of the test results is recorded to the TCM to allow for linking of test results to the transmission once it is in the field. DID (Driver Interface Device) communications and commands Fully Automated Transmission Calibration Calibration of Grade Sensors, Rails, Clutch, brake. Launch from Neutral to Reverse and Neutral to Forward Shifting through all gears forward and reverse or and smaller list of gears depending on needs Validation of engine braking Sound and Vibration monitoring and recording Input shaft and output shaft speed and torque monitoring and recording Computer based control and data acquisition system 3 Test Computers, 1 For test and control, 1 for NVH, and 1 for engine simulation 100 HP VFD controlled input drive motor for engine simulation 250 HP VFD controlled output drive motor Contains integrated production transmission clutch to allow for easy change out and replacement Charged Pneumatic system for clutch control Automatic mating and connections by means of clamping and positioning servo slides Regenerative Electric motors 4 vehicle and engineering CAN busses CAN J1939 compliant Continuous DTC monitoring and CAN Logging DID (Driver Interface Device) Simulation for (FNR) commanding of the transmission. Factory AMS integrated for test automation Full NVH system including accelerometers, microphones, contactless laser vibrometer, torque, and speed sensors. Full gas engine simulation using regenerative VFD controlled electrical motor and CAN Bus System Automatic FTP of results and test data to offsite server and engineering location Real Time Remote monitoring for system and product troubleshooting and diagnostics Battery and Ignition Power Up and Electrical Connections Configuration of the Transmission Control Module (TCM) over the CAN bus to properly identify it and record data for traceability. The ID of the test results is recorded to the TCM to allow for linking of test results to the transmission once it is in the field. DID (Driver Interface Device) communications and commands Fully Automated Transmission Calibration Calibration of Grade Sensors, Rails, Clutch, brake. Launch from Neutral to Reverse and Neutral to Forward Shifting through all gears forward and reverse or and smaller list of gears depending on needs Validation of engine braking Sound and Vibration monitoring and recording Input shaft and output shaft speed and torque monitoring and recording
Battery and Ignition power-up/electrical connections TCM configuration over CAN bus DID communications and commands Fully automated transmission calibration Grade sensor, rail, clutch, brake calibration Launch from Neutral to Reverse/Forward Forward and reverse gear shifting Engine braking validation Sound and vibration monitoring/recording Input/output shaft speed and torque monitoring/recording Battery and Ignition power-up/electrical connections TCM configuration over CAN bus DID communications and commands Fully automated transmission calibration Grade sensor, rail, clutch, brake calibration Launch from Neutral to Reverse/Forward Forward and reverse gear shifting Engine braking validation Sound and vibration monitoring/recording Input/output shaft speed and torque monitoring/recording
Selected Capabilities
Computer based control and data acquisition system
3 Test Computers, 1 For test and control, 1 for NVH, and 1 for engine simulation
100 HP VFD controlled input drive motor for engine simulation
Class 3-8 Truck – Automatic

These test stations are designed and built to simulate a fully functional commercial truck. Using two VFD-controlled electrical motors, they simulate the input shaft from the engine and the output shaft from the drivetrain, replicating real-world operating conditions for the transmission. These automatic transmissions are commanded over the CAN bus from the simulated Driver Interface Device (DID) to enter FNR gear. The transmission determines the next shifting point based on the combination of input shaft speed, output shaft speed, requested acceleration, and torque. These are CAN-based systems with the transmission controller and the engine simulation control working in harmony to apply the right amount of torque, engage/disengage the clutch, command the shift, and smoothly transition from one gear to the next.

Built into this system is a full computer-based NVH system incorporating accelerometers, microphones, laser vibrometers, torque and speed sensors. Live data is captured for the full test of the transmission, recording at up to 10 kHz per channel. Not only is all sensor data streamed to disk, but CAN data is also recorded on up to 4 CAN busses. This recorded CAN data and DTCs are stored alongside and aligned with the sensor data to allow for quick charting and inspection. Test data is serialized for every test of every transmission.

Key Features

Computer based control and data acquisition system
3 Test Computers, 1 For test and control, 1 for NVH, and 1 for engine simulation
100 HP VFD controlled input drive motor for engine simulation
250 HP VFD controlled output drive motor
Contains integrated production transmission clutch to allow for easy change out and replacement
Charged Pneumatic system for clutch control
Automatic mating and connections by means of clamping and positioning servo slides
Regenerative Electric motors
4 vehicle and engineering CAN busses
CAN J1939 compliant
Continuous DTC monitoring and CAN Logging
DID (Driver Interface Device) Simulation for (FNR) commanding of the transmission.
Factory AMS integrated for test automation
Full NVH system including accelerometers, microphones, contactless laser vibrometer, torque, and speed sensors.
Full gas engine simulation using regenerative VFD controlled electrical motor and CAN Bus System
Automatic FTP of results and test data to offsite server and engineering location
Real Time Remote monitoring for system and product troubleshooting and diagnostics
Battery and Ignition Power Up and Electrical Connections
Configuration of the Transmission Control Module (TCM) over the CAN bus to properly identify it and record data for traceability. The ID of the test results is recorded to the TCM to allow for linking of test results to the transmission once it is in the field.
DID (Driver Interface Device) communications and commands
Fully Automated Transmission Calibration
Calibration of Grade Sensors, Rails, Clutch, brake.
Launch from Neutral to Reverse and Neutral to Forward
Shifting through all gears forward and reverse or and smaller list of gears depending on needs
Validation of engine braking
Sound and Vibration monitoring and recording
Input shaft and output shaft speed and torque monitoring and recording

Tests & Measurements

Battery and Ignition power-up/electrical connections
TCM configuration over CAN bus
DID communications and commands
Fully automated transmission calibration
Grade sensor, rail, clutch, brake calibration
Launch from Neutral to Reverse/Forward
Forward and reverse gear shifting
Engine braking validation
Sound and vibration monitoring/recording
Input/output shaft speed and torque monitoring/recording

Frequently Asked Questions

The Ascential T&M Class 3-8 Truck - Automatic test system is designed for powertrain transmission applications. It simulates a fully functional commercial truck using two VFD controlled electrical motors to simulate the input shaft from the engine and the output shaft from the drivetrain.

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