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Now hybrid electric vehicle (HEV) control strategies are mainly aiming at the optimal fuel economy. The performance of most control strategies depends on the driving cycle pre-known. Changing driving condition will influence the optimal results greatly. Therefore, a neural network controller (NNC) is proposed for a dual-mode hybrid vehicle, which can improve fuel efficiency and maintain battery's...
The electromagnetic torque of permanent magnet synchronous motor (PMSM) affects the power distribution precision in the electro-mechanical transmission (EMT). This paper proposes a torque observers for PMSM. Based on the mathematic model of the motor, command torque and the measured rotor speed, we can observe the actual torque precisely, moreover, the power of electric path is more accurate. The...
In this paper, a method of co-simulation between Adams and MATLAB/Simulink is proposed. A dual-mode electromechanical transmission model is built in Adams and a hybrid electric vehicle model is built in Simulink. A co-simulation between Adams and Simulink is completed by transferring the signals through interfaces. The simulation results show that the co-simulation can be used in dual-mode hybrid...
The brake resistance is a key component to ensure the safety and reliability of Hybrid Electric Vehicles(HEV). The mathematical models of electric brake system and control methods of brake resistance are researched in this paper. The key system models including motor, batteries, current bus and so on which effect the control of brake resistance are established and the switch control and linear control...
In this paper, we propose a linear transceiver design method for multiuser (MU) MIMO broadcast channel. Multiple receive antennas are equipped for each user, allowing multiple data streams for a user. In the proposed method, we first separate data streams for different users, and then we joint design the precoder and receive combiner to minimize the mean squared error (MSE) for each user. Simulation...
Confirming Control Strategy is the core of developing the Acceleration Slip Regulation (ASR) system. In this paper the vehicular dynamic model and control model are established and the control strategies of engine throttle regulation and braking control are researched. Several control strategies are simulated with the vehicular model offline. Simulation results indicate that the braking control with...
In order to verify the correctness of business process model, A-Net modeling based on activity was studied and a multilevel verification model based on knowledge rules was established. An extended structure of knowledge rule was proposed and a flowchart was presented for the multi-level verification model. Moreover, a modified genetic algorithm was proposed to resolve the resource scheduling conflicts...
Based on the existing algorithms of vehicle reference speeds for ABS (Anti-lock Braking System), an improved self-adaptive algorithm is investigated. The vehicle deceleration is estimated at the end of each control cycle, and the reference speeds during the next cycle is calculated according to the estimated value of deceleration. The code of this self-adaptive algorithm is written and tested as part...
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