Research On Key Parameter Collection System Of Pure Electric Vehicles In Real Vehicle Environment

With the advancement of technology and technology,people are increasingly eager to have a better living environment.However,the increasing number of fuel vehicles has caused a gradual shortage of oil resources and has caused a series of ecological and environmental problems.In order to solve this problem,automobile companies have started the research and development of new energy vehicles,but the performance testing of pure electric vehicles is faced with problems such as high bench testing costs and cumbersome vehicle testing and modification.Problems,reduce development costs,and provide data support for subsequent optimization and improvement.This paper designs a key parameter acquisition system for pure electric vehicles in a real-vehicle environment.This article explains the background and significance of the topic,analyzes the domestic and foreign development status of the key parameter collection system for pure electric vehicles,and introduces several key parameter collection systems for pure electric vehicles through reading a large number of relevant documents,and proposes the pure electric vehicle environment Design scheme of key parameter acquisition system for electric vehicles.The article analyzes the power and economy of pure electric vehicles,and uses ADVISOR software to model and simulate pure electric vehicles.The influence of some parameters of the key components of pure electric vehicles on the overall performance of the vehicle is obtained,and the results are analyzed.Analysis,and then get the key parameters of pure electric vehicles.In the design of the acquisition system,the STM32F767IGT6 chip is used as the core processor of the vehicle data acquisition and transmission system,and the TJA1050 chip is selected as the CAN transceiver.The circuit diagrams of different modules are designed,and the modules are connected through the circuit board to complete the acquisition system.Hardware design.In the software program development,through the relevant communication principles and protocols,the C language is used to write and debug the program in the MDK development environment to realize the collection function of automobile parameters.The 4G DTU module of model ATK-M751 is used as the wireless transmission module,and the communication settings of the module are carried out,and then the data between different modules is transmitted through the setting of the cloud platform to complete the design of the remote data acquisition system.The remote display software system uses Lab VIEW virtual instrument to design a human-computer interaction interface that accurately reflects the data.The collected car data can be displayed intuitively,and the data can be analyzed to reflect the performance of the pure electric vehicle and accurately control it.The operation of the car improves the safety of the car.Through experiments,it is proved that the system can receive data accurately and stably.After calculating and analyzing the received data,the motor power curve and battery power curve obtained are in line with the driving characteristics of pure electric vehicles,and the power efficiency curve obtained is stable at 55%.Achieved the expected design goals.