CN-122008833-A - Multi-battery hybrid power assembly and vehicle

Abstract

The invention provides a multi-battery hybrid power assembly and a vehicle, and relates to the field of vehicles, wherein the multi-battery hybrid power assembly comprises a plurality of power batteries; the power system comprises a driving motor, a power generation assembly, an internal combustion engine, a control assembly and a control assembly, wherein the driving motor is connected with each power battery, the power generation assembly is connected with each power battery, the internal combustion engine is connected with the power generation assembly, and the control assembly is used for enabling each power battery to be switched between a charging state and a driving state respectively, wherein the power battery can acquire electric energy in the charging state, and the power battery can output the electric energy in the driving state. The power assembly can restrain fluctuation of the charge state of the power battery, so that the service life of the power battery is prolonged.

Inventors

• Huang Aowen
• YANG HUOFENG

Assignees

• 武汉江夏楚能汽车技术研发有限公司

Dates

Publication Date

20260512

Application Date

20260202

Claims (10)

1. 1. A multi-battery hybrid powertrain is characterized in that, the multi-battery hybrid assembly includes: a plurality of power cells; the driving motor is connected with each power battery; the power generation assembly is connected with each power battery; An internal combustion engine connected to the power generation assembly; and the control assembly is used for respectively enabling each power battery to be switched between a charging state and a driving state, wherein the power battery can acquire electric energy in the charging state, and the power battery can output electric energy in the driving state.
2. 2. The multi-battery hybrid assembly of claim 1, comprising a charging branch connecting the power generation component and each of the power cells and a driving branch connecting the drive motor and each of the power cells; The control assembly comprises a charging controller and a driving controller, wherein the charging controller is arranged on the charging branch, the driving controller is arranged on the driving branch and used for controlling the connection and disconnection of the charging branch, and the driving controller is used for controlling the connection and disconnection of the driving branch.
3. 3. The multi-battery hybrid powertrain of claim 2, wherein the plurality of charging branches each connect each of the power cells and the power generation component, each of the charging branches having the charge controller; The driving branch circuits are provided with a plurality of driving controllers, each driving branch circuit is respectively connected with each power battery and each driving motor, and each driving branch circuit is provided with a driving controller.
4. 4. The multi-battery hybrid powertrain of claim 2, wherein the plurality of charging branches each connect each of the power cells and the power generation component, each of the charging branches having the charge controller; The driving branch is connected with each charging branch and is connected with the driving motor.
5. 5. The multi-battery hybrid powertrain of claim 2, wherein the drive legs are plural, each drive leg being connected to each of the power battery and the drive motor, respectively, each drive leg having the drive controller; the charging branch is connected with each driving branch and is connected with the power generation assembly.
6. 6. The multi-battery hybrid powertrain of any one of claims 2-5, wherein at least a portion of the charge controller and the drive controller are connected in parallel with a snubber capacitor.
7. 7. The multi-battery hybrid assembly according to any one of claims 2 to 5, further comprising: A plurality of series branches for connecting adjacent power cells in series; a plurality of parallel branches for respectively connecting the power batteries in parallel; The control assembly further comprises a series controller and a parallel controller, wherein the series controller is arranged on the series branch, the series controller is used for controlling the connection and disconnection of each series branch, the parallel controller is arranged on the parallel branch, and the parallel controller is used for controlling the connection and disconnection of each parallel branch.
8. 8. The multi-battery hybrid powertrain of claim 7, wherein at least some of the parallel controller and the series controller are connected in parallel with a snubber capacitor.
9. 9. The multi-battery hybrid powertrain of claim 1, wherein the control component further comprises: the plurality of sub-battery management systems are respectively connected with the power batteries; and the total battery management system is connected with each sub battery management system.
10. 10. A vehicle, characterized in that the vehicle is a hybrid vehicle, the vehicle comprising: The multi-cell hybrid assembly according to any one of claims 1 to 9.

Description

Multi-battery hybrid power assembly and vehicle Technical Field The invention relates to the field of vehicles, in particular to a multi-battery hybrid power assembly and a vehicle. Background The hybrid power vehicle is provided with the generator and the driving motor, the electric energy generated by the generator can drive the driving motor to drive the vehicle to run, redundant electric energy can be stored in the power battery, the electric energy stored in the power battery can also supply power for the driving motor and other electric equipment in the vehicle, and the power frame easily causes the severe fluctuation of the state of charge of the power battery in the high-speed running process of the vehicle, so that the service life of the power battery is shortened. Disclosure of Invention The invention provides a multi-battery hybrid power assembly and a vehicle, which are used for inhibiting severe fluctuation of the charge state of a power battery, so that the service life of the power battery is prolonged. An embodiment of the invention provides a multi-battery hybrid power assembly, which comprises a plurality of power batteries, a driving motor, a power generation assembly, an internal combustion engine and a control assembly, wherein the driving motor is connected with each power battery, the power generation assembly is connected with each power battery, the internal combustion engine is connected with the power generation assembly, and the control assembly is used for respectively enabling each power battery to be switched between a charging state and a driving state, the power batteries can acquire electric energy in the charging state, and the power batteries can output electric energy in the driving state. In some embodiments, the multi-battery hybrid power assembly comprises a charging branch and a driving branch, wherein the charging branch is connected with the power generation assembly and each power battery, the driving branch is connected with the driving motor and each power battery, the control assembly comprises a charging controller and a driving controller, the charging controller is arranged on the charging branch, the driving controller is arranged on the driving branch, the charging controller is used for controlling the connection and disconnection of the charging branch, and the driving controller is used for controlling the connection and disconnection of the driving branch. In some embodiments, the plurality of charging branches are respectively connected with the power batteries and the power generation assembly, the plurality of driving branches are respectively connected with the power batteries and the driving motor, and the plurality of driving branches are respectively connected with the driving controller. In some embodiments, the charging branches are provided with a plurality of charging branches, each charging branch is respectively connected with each power battery and each power generation assembly, each charging branch is provided with the charging controller, and the driving branch is connected with each charging branch and is connected with the driving motor. In some embodiments, the driving branch is provided with a plurality of driving branches, each driving branch is respectively connected with each power battery and each driving motor, each driving branch is provided with the driving controller, and the charging branch is connected with each driving branch and is connected with the power generation assembly. In some embodiments, at least some of the charge controller and the drive controller are connected in parallel with a buffer capacitor. In some embodiments, the multi-battery hybrid assembly further comprises a plurality of serial branches for connecting adjacent power batteries in series, a plurality of parallel branches for connecting the power batteries in parallel respectively, and the control assembly further comprises a serial controller and a parallel controller, wherein the serial controller is arranged on the serial branches and used for controlling the connection and disconnection of the serial branches, and the parallel controller is arranged on the parallel branches and used for controlling the connection and disconnection of the parallel branches. In some embodiments, at least some of the parallel controller and the series controller are connected in parallel with a snubber capacitor. In some embodiments, the control assembly further comprises a plurality of sub-battery management systems respectively connected with the power batteries, and a total battery management system connected with the sub-battery management systems. A second aspect of an embodiment of the present invention provides a vehicle, which is a hybrid vehicle, comprising the multi-battery hybrid assembly provided in the first aspect of the embodiment above. The embodiment of the invention provides a multi-battery hybrid power assembly, which comprises a plurality of