Power supply system, electric drive device, pure electric vehicle and working method thereof
An electric drive and power supply system technology, applied in electric vehicles, battery/fuel cell control devices, electrical devices, etc., can solve the problems of small capacity, short driving range, poor power performance, etc., and achieve long battery life, The effect of extending the driving range and prolonging the cycle life
Active Publication Date: 2020-05-05
CONTEMPORARY AMPEREX TECH CO
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Generally, in order to reduce the cost of pure electric vehicles and meet a certain cruising range, power batteries with low cost and large capacity are usually selected. However, the power performance of such power batteries is poor, and high-rate discharge has a greater impact on the life of power battery cells.
In order to solve the above problems and achieve a certain acceleration power, power batteries with high-power batteries are usually used, but this kind of power battery not only has high cost, but also has a small capacity, and the mileage of a single charge is very short.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] Features and exemplary embodiments of various aspects of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention. In the drawings and the following description, at least some of well-known structures and techniques have not been shown in order to avoid unnecessarily obscuring the present invention; and, for clarity, the dimensions of regions or structures may be exaggerated. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted. Furthermore, the features, ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a power supply system for an electric drive device, an electric drive device, a pure electric vehicle and a working method thereof. The power supply system includes an assembled battery pack electrically connected to each other, a switch and a battery management system. The battery management system can control the switch to The first battery pack is discharged prior to the second battery pack, and the second battery pack is charged prior to the first battery pack. The battery management system can control the first battery pack to discharge or charge at a rate of current less than or equal to the rated power within the range of discharge and charge. When the immediate power required by the load is greater than the rated discharge power of the first battery pack, the The difference is supplemented by a second battery pack.
Description
technical field [0001] The invention relates to the technical field of electric drive devices, in particular to a power supply system for the electric drive device, the electric drive device, a pure electric vehicle and a working method thereof. Background technique [0002] As people pay more and more attention to environmental and energy issues, new energy vehicles using unconventional fuels are being sought after by people because of their relative friendliness to the environment and diversification of energy sources. Pure electric vehicles stand out in the entire new energy vehicle industry with their advantages of zero pollution, low noise, and high energy utilization efficiency. Although pure electric vehicles have incomparable advantages in environmental protection and energy saving, the technical bottleneck of power batteries has always restricted the development of complete vehicles. Under the limitation of the current technical level, the power battery can only ma...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/18B60L3/00
CPCB60L58/10B60L3/00B60L58/12Y02T10/70
Inventor 金海族陈宁吴小英罗宇杨琦
Owner CONTEMPORARY AMPEREX TECH CO