Kvaser has just upgraded it’s USB offerings with four new interfaces.
Features include high grade performance, more channels, CAN FD compatibility, and, of course, the sleek ergonomic design that Kvaser is known for. Read more
Features include high grade performance, more channels, CAN FD compatibility, and, of course, the sleek ergonomic design that Kvaser is known for. Read more
Metropolia Motorsport Ry is a student driven association that designs and builds each year a formula-type racing car. Read more
In many applications, complex safety add-ons have been designed on top of existing control systems, which has lead to significantly increased complexity and costs. The most significant increase of the performance level can be achieved by replacing all analog signal paths with digital communication: as long as an error can be detected and a control system can perform a reliable reaction, the error cannot cause any harm. When typical failures of systems are analyzed, it is obvious that analog signal paths are the weakest point of any control system.
Systematic re-use of information and design processes defined by the selected system integration framework, such as CANopen, should be understood as an integral part of companies’ design, assembly and service operations, instead of “just another communication protocol” in individual control systems. There are many use cases for such kinds of system integration framework in system design, assembly and service activities.
Multiple disciplines for mechatronic system design co-exist, which hinder the utilization of software-oriented modeling principles e.g. UML. Existing modern tools may be integrated into a working tool chain.
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Current CANopen design files do not support EECs (emergency error codes) with their human readable descriptions. This feature has become more problematic because of abstraction to parameters and signals. The system structure has become automated and proven way of working. Manual EEC management is decreasing the development efficiency because it is time-consuming and prone to inconsistent codes. These design projects are iterative and effort is wasted on each cycle of each project by managing EECs manually. Descriptions shall be uniformly defined for both producers and consumers. Read more
Various kind of inconsistencies have been typical problems in design of distributed control systems. The first solved issue was an automated generation of signal and parameter abstraction from CANopen project avoiding the inconsistent names between application software and communication. The use of meta information of signals and local parameters, such as name, minimum, maximum and default values has already been implemented to avoid the most common inconsistencies. Read more
Hydraulic valves have been driven by separate valve control electronics for decades. The tradition is becoming obsolete due to ever increasing performance, controllability, maintainability and re-usability requirements of the target systems. However, there are still a lot of functionally constrained fully hydraulic systems which need to be upgraded first to electrically controlled. There are also huge number of simple proprietary control systems needing upgrade from proprietary to standard technologies and components. Especially for such kind of systems, it is important to achieve easy and straightforward upgrade path from use of proprietary valve amplifiers into coil-mounted drivers with current-controlled valve. Further step is replacing separate valves and drivers with intelligent hydraulic drives. It is also important to utilize commonality between lower- and higher performance drive solutions. This presentation shows hands-on case examples how the presented system integration challenges can be solved with standard CANopen devices according to device profiles for general-purpose I/O-devices (CiA-401) and hydraulic drives (CiA-408). The main conclusion is that commitment to CANopen actually enables not only the required approaches, but also manufacturer and device independence with large number of interchangeable devices. Another significant result is that the lowest level applications can be implemented just by integrating standardized devices, without application software project. Read more
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