Range-extended electric vehicle energy management strategy test system and method

Abstract

The invention relates to an extended-range electric vehicle energy management strategy test system and method. The system comprises a simulation platform and a test platform, wherein the simulation platform is used for conducting simulation tests on an extended-range electric vehicle through different energy management strategies and obtaining oil consumption of a range extender and working performance of a power part under the corresponding strategies, and the test platform is used for testing energy management strategies of the extended-range electric vehicle; meanwhile, the simulation calculation process data are imported into the test platform; and the test platform is used for testing the simulation calculation process data from the simulation platform to verify the accuracy of the simulation model, and comparing the data measured by the test with the simulation result to correct the simulation model. Meanwhile, the invention also provides a test method corresponding to the extended range electric vehicle energy management strategy test system, compared with the prior art, precision and accuracy of the simulation system are ensured, oil consumption and control performance of the range extender in the whole vehicle carrying process can be well simulated, and the method is used as a reliable basis for selecting an energy management strategy scheme.

Description

technical field [0001] The invention relates to the technical field of automobile testing, in particular to an energy management strategy testing system and method for an extended-range electric vehicle. Background technique [0002] As a technical route in the development of new energy vehicles, extended-range electric vehicles have the advantages of reducing vehicle energy consumption and emissions. Compared with pure electric vehicles, they solve the problem of mileage anxiety and are the best way to solve vehicle energy problems at this stage. An efficient, low-cost, and easy-to-implement approach. Due to the complex power system of the extended-range electric vehicle, it is necessary to formulate an energy management strategy to solve the problem of how to optimize the energy distribution among multiple power sources. The energy management strategy is also a core part of the range extender controller. During the development phase of the controller, the energy manageme...

AI Technical Summary

Problems solved by technology

[0007] The development stage of the range extender needs to test and verify the energy management strategy, but there are errors in the test results using the software simulation test method and the HIL test method of the range extender controller, and it usually requires another bench test to provide the parameters of the physical model; use The real vehicle test method, the test equipment is expensive, the cost is high, and the test time is long, and it is usually more used in the vehicle enterprise

[0008] In addition, under different driving cycles and ambient temperatures, there are differences in energy consumption and control effects of energy management strategies, which may affect the selection of the final energy management strategy.

However, current energy management strategy testing methods usually do not consider the influence of driving conditions and ambient temperature

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