An electronic differential controller for a hub motor driven hybrid electric vehicle

Abstract

The invention provides an electronic differential controller for a hybrid electric vehicle driven by wheel hub motors, belongs to the technical field of automobiles, and solves the problem that in the prior art the control effect of the electronic differential controller is not ideal, scientific and accurate enough. The electronic differential controller comprises a rear wheel moment increment computing module, a wheel hub motor moment increment computing module and a differential control module, wherein the input terminal of the rear wheel moment increment computing module is connected with a vehicle signal receiving unit used for receiving various vehicle signals, the input terminal of the wheel hub motor moment increment computing module is connected with a vehicle driving mode judgment module and a storage battery power estimating module, and both the output terminals of the rear wheel moment increment computing module and the wheel hub motor moment increment computing module are connected with the differential control module. The electronic differential controller can coordinate and control the rotational speed of the two wheel hub motors of rear wheels in a reasonable, effective, and reliable manner under different driving conditions.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to an electronic differential speed controller for a hybrid electric vehicle driven by a hub motor. Background technique [0002] Hybrid electric vehicle has the advantages of energy saving and environmental protection, and is a main technology in the development of automobile technology at present. Most of the existing hybrid vehicles are two-wheel drive. For example, a traditional engine system is installed in the front cabin of the vehicle, and the rear axle adopts dual hub motors as the auxiliary drive system. In this configuration, the hybrid control In the design of the system, the electronic differential control of the rear hub motor is a difficult point. [0003] Someone designed an electronic differential speed control system and applied for a patent. Its name is "motor differential speed control system for electric vehicles", application number: 201120126600.4, announce...

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