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During the development process of automotive electronic control units (ECUs) and in-vehicle networks connected via CAN bus, an efficient software toolset that can be used to monitor the work process of ECUs and the work load of the bus is indispensable to ensure the product quality, as well as to shorten the development cycle and hence reduce the cost. A generic monitoring software, VeNetSpy (In-Vehicle Network Spy), which consists of a communication module (CM), an in-vehicle network configuration database (VND) at application layer and its management tool (VND Editor), a message parsing module (MsgParser), and an application module (AM), has been developed. The CM module acts as a middleware between data link layer and application layer to encapsulate the difference among different CAN interface devices, and provides AM module with a set of unified interfaces to manage communication devices.

Software fault tolerant technique is an important means to improve the reliability of Automatic Mechanical Transmission (AMT) control system. In the paper, the fault tolerant characteristics of AMT control software were introduced. Based on that, three kinds of fault tolerant methods suitable for AMT control software, including software redundancy, software anti-disturbance, fault diagnosis and disposal for sensors and actuators, were put forward and explained in detail. All these methods were applied to the software development of AMT test vehicle. The contrastive test shows that the application of fault tolerant methods can provide the AMT control software with more reliability.