Mustang Dynamometer, an Ohio-based manufacturer of quality testing equipment, dynamometers and related products, recently delivered a heavy-duty transmission dynamometer for testing of large truck transmissions for Edelbrock, a manufacturer of specialty automotive, truck and motorcycle parts, at their Cerritos, California, R&D facility. The state-of-the-art test cell was designed by Mustang to efficiently accommodate the need to test repaired and refurbished transmissions by way of controller area network (CAN) communication, while meeting all required codes for mechanical and electrical hook-ups as established by state and local regulations.
Source: Mustang Dynamometer
The difference in this transmission dynamometer is the use of CAN communication, an electronic communication bus developed in Germany in 1986 and defined by the ISO 11898 standards. Those standards define how communication happens within the transmission, signaling when and how the transmission shifts. Collectively, this system is referred to as a CAN bus. The system can perform a multitude of tests via CAN, including:
• Check shift points (automatic transmissions)
• Full throttle upshift test
• Downshift inhibitor test
• Check for abnormal noise and vibration
• Check transmission control system
• Closed throttle downshift test
• Leak check shaft seals and clutches
• Check main, clutch and converter pressures
• Determine mechanical binding
