In recent years we can see the increasing of electronic control systems in cars. The reason ofthis increasing is to ensure better safety, comfort, requirements of users and to bear up against thecompetitive pressure etc., last but not least the pressure of single governments on all the timereducing of consumption sources and the tendency to lower the emitting of emissions to theatmosphere too. These require to implement new systems to the car. The growing of control systemshas the influence on quantity of interconnecting wires, which brings the problems (failure rate,unreliability of connection, disturbance, energy losses, etc.). The right coordination of individualcontrol units have to be ensured e.g. the co-operation of engine, ABS/ASR and automatic gearbox.These systems come through different tests for the ensuring of correct functions.For these purposes the serial communication protocol (Controller Area Network - CAN) byBOSCH company was created. The protocol is designed especially for using in the cars. CAN is usedfor connection of different device types (drivers, sensors, actuators etc.) through the serial data bus.This protocol is used in different industrial applications too. The reason is above all the lower price,easy access point, reliability, high data rate and easy extensibility.
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机译：近年来，我们可以看到汽车电子控制系统的增长。这种增加的原因是为了确保更好的安全性，舒适性，使用者的要求并承受竞争压力等，最后但并非最不重要的一点是，单一政府在所有减少消耗源时间上的压力以及降低排放量的趋势。也进入大气层这些要求为汽车实施新系统。控制系统的发展对互连线的数量产生了影响，带来了问题（故障率，连接不可靠，干扰，能量损失等）。必须确保各个控制单元的正确协调，例如这些系统通过不同的测试以确保功能的正确性。为此目的，创建了BOSCH公司的串行通信协议（Controller Area Network-CAN）。该协议是专门为在汽车中使用而设计的。 CAN用于通过串行数据总线连接不同类型的设备（驱动器，传感器，执行器等）。该协议也用于不同的工业应用。原因首先是较低的价格，易于访问的点，可靠性，高数据速率和易扩展性。
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