Papers by Author: Hui Yan Chen

Abstract: Task driven approach is widely used as an evaluation method for intelligent vehicle, however this approach may lead to many teams using the conservative approach to complete the task. Although the competition task can be completed, it has deviated from the goal of technological development actually. A cost function-oriented quantitative evaluation method is proposed in this study. The time to complete each task and the quality of each indicator are considered in the evaluation method. The cost function-oriented quantitative evaluation method guides the intelligent vehicle’s development in the "low-cost index" (i.e. high technology) direction. The evaluation results in the 2010 Future Challenge: Intelligent Vehicles and Beyond (FC’ 2010) competition showed that the proposed method can quantitatively evaluate the overall technical performance and individual technical performance of unmanned vehicles.

Abstract: To make the parallel hybrid electrical vehicle (PHEV) equipped with automatic mechanical transmission (AMT) shift without disengaging clutch, the speed and the torque of the engine and the motor must be controlled precisely and reasonably. Because the engine and the motor all equipped before the AMT, the input shaft moment of inertia of the transmission is great. To ensure the synchronizer of the transmission disengage with a small force and reduce the tooth wear of the synchronizer, we must control the torque of the motor based on different conditions to make the AMT work with small torque transmission before shifting. In view of the uncertainty and complexity of the system, we use ANFIS method to determine the target torque of the motor to make sure the synchronizer disengages with the transmission transferring little torque. Finally, we make a vehicle simulation carried out by the software “cruise” and prove that the method is feasible.