A hybrid new energy powertrain, vehicle power system and control method

Abstract

The application provides a series-parallel new-energy power assembly, an automobile power system and a control method. The power assembly comprises an engine, a first automatic clutch, a first polyphase motor, a second automatic clutch, a second polyphase motor, polyphase motor controllers, a first high-voltage switch set and a second high-voltage switch set. According to the application, the first automatic clutch is disposed between the engine and the first polyphase motor, so a running mode is added for the power assembly; because of the structure, the first polyphase motor and the second polyphase motor can work at the same time; the motors are designed into the polyphase motors, and the high-voltage switch sets are disposed between the polyphase motors and the polyphase motor controllers, so the polyphase motor controllers can conduct coupled driving of the first polyphase motor and the second polyphase motor and thus the driving power and the electricity generation power of the power assembly can be increased; and the polyphase motors are used as the motors, so redundancy characteristics of the power assembly are enhanced, and safety and reliability of the power assembly are enhanced.

Description

technical field [0001] The invention relates to the technical field of automobile power, in particular to a hybrid new energy power assembly, an automobile power system and a control method. Background technique [0002] The hybrid new energy powertrain that is widely used in the market now usually consists of an engine, an ISG motor, an automatic clutch and a drive motor. This kind of powertrain has few operating modes, and the pure electric drive can only be driven by the drive motor, and the ISG motor cannot participate. The pure electric mode driving capability of the powertrain is limited, and the drive motor enters the brake feedback when the braking energy is recovered. mode, the ISG motor cannot participate, and the brake recovery efficiency is not high. Contents of the invention [0003] In view of this, the present invention provides a hybrid new energy powertrain, a vehicle power system and a control method, which are used to solve the problem that the hybrid n...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention provides a hybrid new energy powertrain, a vehicle power system and a control method, which are used to solve the problem that the hybrid new energy powertrain in the prior art has few operating modes, and because of Only the driving motor can be used for pure electric driving, and the ISG motor cannot participate, which leads to the problem that the driving capability of the powertrain in pure electric mode is limited, and because the driving motor enters the braking feedback mode when the braking energy is recovered, the ISG motor cannot Participation, resulting in low brake recovery efficiency, the technical solution is as follows:

Images