^NEW! t Script Introduction Course

Filtering

t can be used to change the messages recorded, based on the state of a system. For example, when a system is in startup mode, everything must be recorded, and recording stopped when normal operation begins. If a user then wanted to record messages only when the temperature reading of a thermostat exceeds a certain value, but some of the messages they only wanted once every second because they are transmitted too frequently.

Diagnostics

With advanced logging and statistics collection capabilities, Kvaser’s Memorator Pro data loggers can be programmed to actively interrogate an ECU, requesting further information from it, depending on the response.

ECU Simulation

There are many situations in which a system requires testing, but one or several ECUs are not available to run tests. For example, in the early stages of the powertrain and vehicle design cycle, when an ECU is being designed but other ECUs are missing; during design and production of associated parts and perhaps even during servicing. A ‘virtual’ ECU that can mimic the signals produced by the real one can save considerable time.

Memorator Pro is an ideal host for simple or complex ECU simulation programs. With t‘s event-driven design, this programmable device can act as a standalone ECU simulator, no matter how advanced the ECU requiring simulation.

Gateway/Bridge

A t script can transform t-capable Kvaser hardware into a gateway or bridge between two CAN networks. Whilst other devices on the market can do this, what differentiates t-capable Kvaser hardware is the ability to use filters to screen out certain messages and, if necessary, inject faults. For example, an engineer can use the Kvaser Memorator Pro as a bridge between two different CAN networks that filters out certain types of message, or injects new values into certain types of CAN messages. E.g. CANopen to J1939 gateway sample code.

t can also be used to encrypt the gateway between two CAN networks, by implementing CAN Security Encryption locally on the t-capable Kvaser device.

Flash Programming

t-capable Kvaser hardware can run scripts to handle flash reprogramming, with the advantage being that there is no need for any interaction from a PC, which is how flash reprogramming is carried out today. Using a t script running on a CAN interface to access the ECU directly also circumvents any latency caused by the PC interface. Another advantage is that with multi-channel Pro devices, the channels can be manipulated independently, so multiple nodes can be reflashed at the same time. With the in-built encryption option, manufacturers that use t-capable Kvaser hardware for flash programming can be assured that their proprietary ECU access codes remain fully secured.

ECU Calibration

The CAN Calibration Protocol (CCP) and Universal Measurement and Calibration Protocol (XCP) for reading measurement data and writing parameters to ECUs are commonly used during development, testing and in-vehicle calibration. Kvaser’s technical associates create custom scripts for the Memorator that offer a tailored approach to CCP/XCP. These scripts are secured by locking them to the specific serial number of the Memorator device, ensuring the protection of customers’ CCP/XCP solutions, including Seed and Key parameters.

Higher Layer Protocols

Support for various higher layer protocols such as J1939 can be implemented in the  Memorator via custom-built t scripts. Customer requests for particular protocol stacks will be passed to appropriate Kvaser technical partners. E.g. NMEA node simulation.