TTControl’s Modular Solution for Distributed Mobile Applications

TTControl, TTTech’s subsidiary specializing in electronic control systems for off-highway vehicles, has developed a CANopen®based, cost effective, modular and user-friendly solution for extending the number of I/Os in mobile applications. The TTC 36X is best suited for different kinds of control tasks in a vehicle and acts as slave unit in a CAN-based network architecture.

The intelligent I/O slave module TTC 36X is used in combination with, and controlled by a master electronic control unit (ECU). The master control unit can be located at an entirely different place in the vehicle and communicates with the slave module via the standardized CANopen protocol. One or more TTC 36X can be used in addition to the master control unit in a modular way. This distributed architecture makes the design and assembly of different vehicle variants possible and more cost and time effective than in the past. In addition, cabling is simplified and more economic.

TTC 36X is delivered with a ready-to-run software. The application has to be implemented for the master only and interfaces with the slave module via CANopen. This makes the setup user-friendly and saves development time.

Local current control on the PWM outputs of the TTC 36X allow efficient control loops on the slave module. The dither frequency for the valves can also be individually configured.

The I/O module is protected by an aluminum pressure die-cast housing that is highly suited for rough operation requirements of the off-highway industry. It is part of a complete and compatible product family consisting of powerful electronic control units and visualization solutions. All these units are programmable in CoDeSys® and can act as master ECU for the TTC 36X. The top models of the product family are IEC 13849 compliant and have been certified according to IEC 61508. They can be used in applications up to Safety Integrity Level (SIL) 3.