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In a modern vehicle, hundreds of messages are transmitted each second from one ECU to another via data network, some of those containing vital information for the correct functioning of a specific task. The vehicle's behavior may change depending on the value of the transmitted messages or, in some cases, the latency or total absence of a message due to a problem in the network or in the sender ECU may cause the vehicle to generate a fault code or even assume an emergency mode. Thus, it is necessary to simulate different values and transmission periods for the existing messages in a network in order to test if the vehicle is reacting properly to them. This paper will show how to simplify individual CAN message manipulation in an existing network, using tools available in the market.

In order to achieve the best automotive vehicles, companies seek for innovation and new technologies to improve their vehicles. Lately the embedded electronic has been used to add intelligence to a purely mechanical systems. The reduction of fuel consumption, one of the biggest concerns of automotive engineering, for the last couple of years, depends on many factors. Some those factors are engine type, fuel quality, vehicle load, gearshift pattern, vehicle usage, driver behavior and the cooling system technology. The fan applied in cooling system uses part of engine power to run, influencing the fuel consumption and contributing to the global noise level of vehicle, being directly associated with passenger’s comfortable. One alternative in study is the use of a set of electric fans that can be triggered independently, in order to increase the heat exchange in specific places of radiator, while reducing the noise and run time.