The traditional electronic braking system (EBS) of a commercial vehicle has the problems of sluggish pressure response, large dynamic error and unsatisfactory braking effect during braking. First, a novel EBS system based on electronic pneumatic valves (EPV) module is designed, which integrated the control of each pneumatic valve. Secondly, the hardware of the EBS bottom controller and the air pressure closed-loop control are carried out. A kind of similar to PWM (SPWM) air pressure control method is proposed. By controlling the opening and closing time of the solenoid valves, the brake air pressure could be precisely regulated, and the dynamic response characteristics of the system are improved. Eventually, commercial vehicle air brake hardware in the loop (HIL) test platform based on LabVIEW and NI-PXI system is built to verify the effectiveness of the EBS dynamic response characteristics. The experimental results showed that the continuous control of EBS solenoid valves is realized by using the SPWM control method, and the fine dynamic response characteristics of EBS air pressure closed-loop control are ensured.

Parallel parking is the most common form of parking, but it is difficult to park vehicles safely in complex traffic scenes. The paper proposed an automatic parallel parking control strategy based on Q-learning. The convergent Q-table was obtained through offline training to ensure that the automatic parking control system could obtain the optimal parking action during the automatic parking process. Based on the parking kinematics model, the virtual parking scene and the parallel parking control strategy based on fuzzy control were established. The comparative analysis of the two control strategies showed that the parallel automatic parking control strategy based on a Q-learning algorithm could deal with more complex traffic scenes. Finally, the automatic parallel parking hardware-in-the-loop test system was built based on a purely electric drive platform, and the effectiveness of the automatic parking control strategy was further verified through the hardware-in-the-loop test.

Engineering education accreditation (EEA) is the internationally accepted engineering education quality guarantee system, and it is the important foundation of international mutual recognition for engineering education and qualifications. First, in contrast to the criteria of EEA, the domestic construction of the transportation major curriculum system is analyzed at the present situation, and the DEMATEL-AISM model to carry out structural analysis research on the transportation major curriculum system in the application-oriented universities is established. Furthermore, the transportation major in Liaocheng University is taken as an example and the adversarial hierarchical topology map of the curriculum system, based on the DEMATEL-AISM model, is created. Finally, a curriculum structure is built which could adapt to the school-running characteristics and talents training goal. Through exploration and practice, the curriculum structure improves the transportation major educational objectives to achieve social fitness and provides a reference for the transportation major curriculum construction in colleges, especially application-oriented universities.