Test bed for pure electric vehicle power assembly

Abstract

The invention discloses a test bed for a pure electric vehicle power assembly. The test bed measures the power output of the pure electric vehicle power assembly by adopting two electric dynamometers. The pure electric vehicle power assembly is arranged on the test bed according to the installation modes and the fixed positions of a pure electric motor assembly and a gear box assembly; and the pure electric vehicle power assembly is connected with the two electric dynamometers through a driving shaft and a connecting flange, then is connected with a controller of each part, a cooling system, an electrical parameter tester, other parts and the like, and debugs the communication of the whole system. The test bed can be used for performing the following tests of: a functional verification test of a pure electric vehicle power assembly system, various performance test of the pure electric vehicle power assembly and various tests under the road working condition of the pure electric vehicle power assembly.

Description

technical field [0001] The invention belongs to the field of bench tests for power assembly systems, and in particular relates to a test bench for automobile power assemblies. Background technique [0002] At present, the powertrain of pure electric vehicles is mainly debugged on the whole vehicle, but due to the limitation of the space of the whole vehicle, it is difficult to check the failure and replace parts after failures and problems occur, and the workload is heavy. Influenced by the weather, the test period is long, the vehicle is unstable, and there are potential safety hazards. [0003] At present, there is basically no bench that can effectively evaluate the performance of the pure electric powertrain. When a single electric dynamometer is used for the pure electric powertrain test, it can only perform single-axis measurement of the pure electric powertrain output. The dual-axis output of the pure electric powertrain cannot be assessed, and when a single electri...

AI Technical Summary

Problems solved by technology

[0002] At present, the powertrain of pure electric vehicles is mainly debugged on the whole vehicle, but due to the limitation of the space of the whole vehicle, it is difficult to check the failure and replace parts after failures and problems occur, and the workload is heavy. Influenced by the weather, the test cycle is long, the vehicle is unstable, and there are potential safety hazards

[0003] At present, there is basically no bench that can effectively evaluate the performance of the pure electric powertrain. When a single electric dynamometer is used for the pure electric powertrain test, it can only perform single-axis measurement of the pure electric powertrain output. The dual-axis output of the pure electric powertrain cannot be assessed, and when a single electric dynamometer measures the pure electric powertrain, road resistance simulation and vehicle inertia simulation cannot be performed, so it is impossible to conduct pure electric powertrain on the road Various tests under working conditions

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