Data acquisition device and method for testing and evaluating new energy vehicles

Abstract

The invention provides a data acquisition device and method for new energy vehicle test evaluation. A CAN signal acquisition hardware interface card first CAN bus communication end is connected to a new energy power CAN bus data interactive terminal, a CAN signal acquisition hardware interface card second CAN bus communication end is connected to a traditional power CAN bus data interactive terminal, a CAN signal acquisition hardware interface card third CAN bus communication end is connected to a vehicle body CAN bus data interactive terminal, a CAN signal acquisition hardware interface card fourth CAN bus communication end is connected to a data acquisition equipment CAN bus data sending end, a data acquisition equipment CAN bus data receiving end is connected to a data conversion module data sending end, and a data conversion module data receiving end is connected to a vehicle-borne sensor. Thus, the effects of signal synchronization and frequency consistency and the multi-channel synchronous data acquisition are ensured.

Description

technical field [0001] The invention relates to the field of circuit and computer control, in particular to a data acquisition device and method for testing and evaluating new energy vehicles. Background technique [0002] In recent years, new energy vehicles have become one of the key breakthrough technologies in the process of industrial transformation and upgrading in my country, and major automobile manufacturers have launched new energy vehicle development plans. However, there is still a large gap between my country's new energy vehicle technology and the international leading level, not only in the design of the vehicle, but also in the performance of key assemblies and core components. In order to shorten the gap between domestic and foreign countries, how to accurately test and evaluate international advanced new energy vehicles has become a major problem that needs to be solved urgently. [0003] At present, domestic and foreign OEMs and research institutions gene...

AI Technical Summary

Problems solved by technology

[0003] At present, domestic and foreign OEMs and research institutions generally use traditional data collection methods to test and evaluate new energy vehicles. Due to the limited collection channels, the above data collection methods cannot complete a large number of electronic control systems for new energy vehicles. Acquisition of CAN signals and signals of external data acquisition equipment, so it is difficult to accurately test and evaluate the research objects

If multiple commonly used data acquisition systems are used for joint testing to solve the problem of limited data acquisition channels, it is difficult to achieve synchronous acquisition of signals between data acquisition systems, which will bring great difficulties to later data processing and analysis, so in the end Affect the accuracy and efficiency of test evaluation results

In addition, the commonly used data collection methods cannot complete the test and evaluation requirements for vehicle-specific signals because the collected real vehicle signals cannot be changed.

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