This master thesis describes the analysis of failures at a four wheel drive electric vehicle. In the car are four separate engines installed. Each of them activates one wheel at which different failures could occur. The main point of interest is to analyze the influences on the vehicle dynamics. In addition different drive concepts in case of failure will be compared and the behavior on a wet road will be investigated. To simulate these drive maneuvers a program was written in MATLAB. This thesis explains the simulation technology in a general way and presents some studies on this topic. Also the specific simulation will be focused exactly. There the car, which is used for the process, will be parameterized and the mathematical model introduced. Furthermore some standard test procedures commonly used in practice are simulated to validate the virtual car. So several test drives could be started and show the consequences due to defective power engines. Experiments at a straight road, in curves and for different road conditions will be done.
Additionally the test series demonstrates the differences between the two car concepts and shows the advantages and handicaps of both. Besides a table gives an overview about all maneuvers and helps to classify the severity of each failure.