The European Union issued COMMISSION REGULATION (EU) 2018/1832, which requires vehicles to be equipped with devices, i.e. On-Board Fuel and/or Energy Consumption Monitoring （OBFCM）devices, which can measure fuel consumption in real time, requires the accuracy of the collected data and requires that the fuel consumption data stream should meet the current vehicle-machine communication standards. In this paper, the feasibility of vehicle terminal coverage of OBFCM is studied by comparing and analyzing the OBFCM device and the policy, function and technology of vehicle fuel consumption monitoring in real time. The results show that the vehicle terminal coverage OBFCM device can be applied in all aspects above, and has great development prospects. China should carry out the collection of driving data for fuel consum-ption as soon as possible and establish relevant industry standards.

In the in-vehicle simplified Chinese display standards, 3 safety related questions need to be explored and established: (1)The minimum character’s height that drivers can read on in-vehicle screens; (2)The maximum number of characters that drivers can accept in a single information prompt; (3)The total number of characters that drivers can read when completing one non-driving task. Based on 3 types of experiments on a test bench through a 128-person within-subject design, results suggest: (1)The automobile cockpits information display should use a minimum simplified Chinese character font height no less than 16’ arc minutes; (2)A single message prompt in automobile cockpits contain no more than 12 characters; (3)The total characters for messages in a single non-driving task no more than 30 characters.

Engine misfire is a major problem affecting the high quality of the vehicle, and misfire problem of heavy natural gas vehicle for China VI is a difficult problem in the industry. In this paper, the actual misfire problem of a heavy-duty natural gas vehicle is studied. Based on the field of vehicle calibration, the causes of misfire in hardware and software are analyzed, and the calibration improvement scheme related to Exhaust Gas Recirculation (EGR) and excess air ratio(λ) module is studied in depth. The scheme combination aims to solve typical vehicle misfire problems in plateau, high cold, high temperature and mountainous areas, and has good application effect on this model, providing a new calibration perspective and ideas for solving misfire of heavy duty natural gas vehicle.

With the vigorous development of the automobile industry, the environmental pollution problem of internal combustion engine vehicles has become prominent day by day, especially the front-rear drive vehicles with large displacement engines. Influenced by increasingly stringent fuel consumption and emission regulations, influential automobile enterprisesat home and abroad have turned to the hybrid technology for front-reardrive vehicles. Through the investigation and research on the existing energy-saving technologies of hybrid electric vehicles, this paper summarized the typical front-rear drive hybrid electric vehicles and technological solutions, analyzed the powertrain architecture principle, key assembly parameters, advantages and disadvantages of hybrid technologies as well as the future development trends and challenges.Promoting technological level and development are major trends for front-rear drive hybrid electric vehicles.

With the improvement of electric vehicle technologies, integrated design has gradually become the direction of development. This paper mainly elaborates the structural integrated design of the electric vehicle system: six-in-one integrated design of PDU, OBC, DC/DC, BDU, BMS and battery, two-in-one integrated design of AC charging cradle and DC charging cradle, and integrated design of high voltage harness connected to compressor and high voltage harness connected to PTC. Compared with the distributed design, it can make full use of the vehicle space, short harness length and reduce the number of components, and then reduce the weight and cost.

According to the performance requirements of the thermal management system for the fuel cell engine, the thermal management system of a fuel cell engine is taken as the research object, combined with the selection scheme of parts and pipeline design, the fluid model of the thermal management system is established, including the water pump, the thermostat, the radiator, the PTC and pipelines. At the same time, the flow resistance characteristics of the components are analyzed, and the heat transfer coefficient of the radiator is calculated. Finally, the influence of the components on the flow resistance and temperature of the thermal management system is studied by fluid simulation in the situation of large cycle and small cycle. The calculation and analysis can provide guidance and basis for the design of the thermal management system of the fuel cell engine.

Hydrogen fuel cell vehicles have the characteristics of green environmental protection, long driving range, short hydrogenation time. For a long time, hydrogen safety is an important guarantee for the promotion of hydrogen fuel cell commercial vehicles, and it is also the most concerned issue of users. From the literature and standards specification research as well as the experience of real vehicle development, assembly and service, the hydrogen safety measures in the main links of fuel cell commercial vehicle design, loading, service and monitoring are summarized, so as to provide reference and methods for hydrogen safety of hydrogen fuel cell commercial vehicles.

With the increasing level of vehicle automation, there is a growing demand for vehicles to autonomously perform obstacle avoidance in the field of autonomous driving. Therefore, to accurately, safely, and reasonably plan obstacle avoidance routes has become an important research direction in the field of automated driving. This paper elaborates the current research status of local path planning algorithms and their limitations in practical applications. Furthermore, the research status of improved path planning algorithms based on artificial potential field and sampling methods are reviewed in response to these limitations. The results show that this improved path planning algorithm performs well in experiments or practical applications and the path planning effect of multi-algorithm fusion is better than that of single algorithm in the future.

Intelligence, networking and electrification have become the strategic direction for the development of the global automotive industry. In order to adapt to the new three transformation of the automobile industry，and solve the new problems arising from battery safety, hardware safety, software safety, data safety, and modification safety during the service of intelligent electric vehicles. This paper analyzes and identifies the risks in 5 fields of intelligent electric vehicles, as battery, hardware, software, data, and modification through literature research, expert interviews, enterprise research and other methods. Based on risk analysis, 5 aspects for health management suggestions are proposed, which is government management, standards formulation, technology and equipment development, personnel training, and inspection organization upgrading.

Thermal management is one of the key technologies of Proton Exchange Membrane Fuel Cell (PEMFC) vehicles, which affects the power performance, fuel ecomomy, safety and life of the vehicle. In view of the shortcomings of the traditional thermal management control strategy (on-off strategy), this paper proposes to maintain the inlet and outlet water temperature of the fuel cell system at the target value by controlling the fuel cell thermostat opening and fan speed. The multi-fan speed distribution strategy and control strategy of over temperature treatment, together with PID realize the rapid response of the thermal management system of the fuel cell system. The results show that, compared with the traditional on-off strategy, the optimized PID adaptive regulation strategy can quickly respond to the target operating temperature requirements of the fuel cell system, and enable the fuel cell to run at higher power under extreme working conditions. The battery system and vehicle performance have been greatly improved.