Dual-motor direct-current hybrid power system

Abstract

The invention relates to a dual-motor direct-current hybrid power system, which comprises an engine, a first motor, a second motor, a speed changing box, a first power source and a second power source, and is characterized in that the engine, the first motor, the speed changing box and the second motor are connected in sequence; a clutch is arranged between a generator and the motor; the first power source and the second power source are connected with the generator and the motors by control devices. According to the hybrid power system, a dual-motor driving mode is adopted, stronger power can be provided under the pure electric drive mode, the pure electric traveled distance can be effectively improved through the configuration of double power sources, and the energy-saving and emission-reducing effects are realized.

Description

technical field [0001] The invention relates to a dual-motor direct-connected hybrid power system, which can realize the coordinated distribution of various power energy sources and is suitable for plug-in hybrid electric vehicles traveling purely by electric power for a long time. Background technique [0002] With the worsening of the global environment, countries continue to introduce relevant governance policies to control air pollution, including stricter vehicle emission standards. In response to the above situation, traditional vehicles are facing huge challenges both in terms of energy consumption and emissions. As a transition from traditional vehicles to zero-emission pure electric vehicles, hybrid vehicles are bound to be the most widely used. A hybrid vehicle refers to a vehicle that is jointly driven by two or more different types of power sources. The driving power of the vehicle is provided by a single power source alone or jointly by multiple power sources a...

AI Technical Summary

Problems solved by technology

The reason is that, on the one hand, it is limited by the insufficient power storage power, and the vehicle cannot maintain pure electric driving for a long time; on the other hand, because the hybrid drive system mainly comes from traditional models, the electric motor in the existing mature design only plays the role of engine drive. The auxiliary drive, its arrangement and power characteristics are not enough to drive the vehicle alone for a long time. The above two reasons are particularly obvious in large hybrid commercial vehicles

In order to solve the problems of low pure electric mileage and insufficient pure electric driving power of the above-mentioned hybrid vehicles, the present invention provides a new hybrid system design

Images