Control method of extended-range driving system

Abstract

The invention discloses a control method of an extended-range driving system. Torque required by the controller is calculated in advance, and output parameters of the whole vehicle controller are determined. The whole vehicle controller determines the most suitable working mode of the vehicle according to real-time vehicle condition information and vehicle attributes collected by the vehicle condition sensor, and outputs a driving mode instruction and a driving torque instruction to the driving device and the power generation device, so that the working condition of the extended-range drivingsystem is optimal; the working modes comprise a pure electric driving working mode, a driving charging working mode and a parking charging working mode. The control methodconforms to the latest definition of the extended-range electric vehicle, the driving device and the power generation device are arranged in an integrated mode or a separated mode, the problem that the arrangement space of the whole vehicle is insufficient is effectively solved, and the cost of the whole vehicle is reduced. A speed increasing mechanism is additionally arranged between the engine and the generator, and the charging efficiency and endurance mileage of the whole vehicle are improved through the controller.

Description

technical field [0001] The invention relates to a technology in the field of electric vehicles, in particular to a control method for an extended-range driving system. Background technique [0002] As an important means of transportation that meets environmental and energy requirements, new energy vehicles are increasingly valued by countries all over the world. At present, most of the domestic new energy extended-range electric vehicle drive systems are modified on the traditional automatic transmission. Both the drive motor and the generator motor are equipped with corresponding gearboxes, which have high cost, large layout size, and efficiency and NVH performance caused by complex mechanical structures. issues such as reduction. In addition, the engine power source of most extended-range electric motors is connected to the wheels, which can directly participate in the driving of the whole vehicle, which does not meet the latest definition of extended-range electric vehic...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the defects of the prior art that the layout size is large and the efficiency and NVH performance are reduced due to the complex mechanical structure, and proposes a control method for the extended-range drive system, which improves the charging efficiency of the entire vehicle and increases the cruising range of the entire vehicle

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