查询词典 ECUs

In this dissertation Calibration System based on XCP Protocol for CAN bus real time simulating ECUs is studied.

中文摘要在参考国内外相关研究资料的基础上，论文简要介绍了车载总线网络和车载标定技术的发展状况，并概括了课题的研究意义。

It is thought that there are around 70 ECUs in modern cars, each one of which usually controls one sub-system.

现代的汽车大约有70个电子控制单元，每一个单元则控制一个副系统。

However, the ECUs "talk" to each other so that the demands of different situations can be met.

尽管如此，电子控制单位还是会互相「交谈」，以应变不同情况的需求。

What this paper works over is comunication system among each HEV's Ecus.

本文课题研究的正是混合动力客车的电子设备之间的通信系统。

It is composed of three computers which simulate HCU and other ECUs to transmit messages each other.

仿真系统已用于测试混合动力汽车电机控制器的通信性能。

Detects all ECUs installed in car and reads all diagnostic fault codes.

侦测到所有的ECU安装在汽车和读取所有的诊断故障码。

The total 16 channels are enough to satisfy all the requirement of ECUs development.

本测试平台共有两个相同的模拟量输出单元，每个单元可输出0～5V的模拟量信号8路，共16路，足以满足所有ECU开发需求。

ECUs interact with external sensors, actuators, and other ECUs on the Controller Area Network.

由于这些协议，您能根据ASAM(。A2l)数据库文件中的定义，对内部ECU变量和特征进行读写。

The ECUs are connected in the way of point-to-point now; they are isolated with each other and separated control, the communication of the messages in these ECUs working not well. Thus, the sensors have to be connected repeatedly and the wires' collocation becomes complexity.

目前，各种电子控制单元在我国城市客车上多采用点到点的连接，在同一车中各自独立、分离控制，相互之间的信息传递和通讯并不通畅，从而导致了传感器的重复使用和线束的复杂。

According to the calibration information, Research and development status of automotive bus network and automotive calibration system is studied and the research significance is generalized. First of all, the collectivity precept for calibration system is designed, the calibration platform is set up based on the XCP Protocol and the calibration object is CAN bus network simulation ECUs. Then how to create the calibration system based on Ethernet and Series communication is expatiated, the communication way from computer to ECUs is introduced and the calibration system is tested. Then how to create the calibration system based on CAN bus communication is expatiated, the design and the interface programme are introduced and the calibration system is tested. At last the platform is used to calibrate the CAN bus network simulation system to regulate the simulation system's topology and communication speed to test the communication protocol's feasibility.

论文首先设计了标定系统的总体方案，以CAN总线实时仿真系统中的节点标定为研究对象，采用XCP协议建立具有串口、以太网和CAN总线三种通讯接口的标定平台；然后，具体开发了基于以太网通讯和基于串口通讯的标定系统，完成了上、下位机部分的软件设计，确定了标定系统在两种通讯方式下的数据处理方法，并分别应用两种标定方式标定下位机仿真系统的参数，让下位机仿真系统在规定的通讯协议和拓扑结构下进行仿真，对所设计的标定系统进行了调试；接着，设计了基于CAN总线通讯的标定系统，完成了CCP协议（&XCP on CAN&）的接口程序设计，并通过混合动力汽车一种拓扑结构的通讯仿真对所设计的系统进行了调试；最后，应用开发的标定系统，对混合动力电动汽车网络通讯协议进行了仿真研究，并根据实验结果进行了分析。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。