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Standardized range-increasing power system and management method

A power system and standard technology, applied in the field of new energy electric vehicles, can solve problems such as difficulty in matching each other, electrical interface and communication protocol mismatch, etc., and achieve the effect of reducing production costs, high commercial utilization value, and improving reliability.

Active Publication Date: 2019-03-22
SUZHOU DSM GREEN POWER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the battery boxes developed by various manufacturers have different sizes, different electrical interfaces, different communication protocols, and the size and shape vary greatly, it is difficult to achieve mutual cooperation and matching; different range extenders The range extender developed by the factory also has the problem of mismatching electrical interface and communication protocol

Method used

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  • Standardized range-increasing power system and management method
  • Standardized range-increasing power system and management method
  • Standardized range-increasing power system and management method

Examples

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Embodiment 1

[0044] The present invention proposes a standardized range-extending power system, figure 1 It is a structural schematic diagram of the standardized range-extending power system. The control unit 5 in the standard controller 4 is responsible for the compatibility management of the battery standard box 1, the battery standard box 2 and the standard range extender 3 in the system, and simultaneously controls the battery standard box 1, the battery standard box 2 and the standard range extender 3. The connection between the main switches Kz1, Kz2 and Kz3 and the vehicle power DC bus; or through the auxiliary switches Kf1 and Kf2 to connect the standard range extender and the battery standard box.

[0045] The control unit 5 in the standard controller 4 communicates directly with the DC charger 7 through the CAN2 communication to coordinate the maximum allowable charging current and the start and end of charging; through the CAN3, the vehicle controller 8 and the standard range ex...

Embodiment 2

[0060] Compared with the above-mentioned embodiment, this embodiment provides the internal circuit structure of the standard management module 6, see figure 2. The standard management module 6 is a programmable IC chip or module 10, including a microprocessor MCU12 responsible for communication management and implementation control, a CAN driver module 14 responsible for CAN communication, a low-end control module LSD13 for switch control, and a 5V power supply module 11 Provide independent power supply for the standard management module 6. The CAN driver module 14 isolates the internal Tx / Rx communication from the external CAN+ / CAN- communication line, allowing the ground of the CAN communication signal to float.

[0061] The standard management module 6 of this embodiment exchanges status data with the battery management BMS and the standard range extender 3 through I2C serial communication, including the rated voltage values ​​V of battery standard boxes 1 and 2 0 , erro...

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Abstract

The invention relates to a standardized range-increasing power system which comprises a power battery standard box group, a standard range-increasing device and a standard controller. The standard controller is respectively connected with a battery standard box and the standard range-increasing device through CAN communication lines, the battery standard boxes and the standard range-increasing device are respectively connected with a whole vehicle power direct current bus through a main switch, and each battery standard box is connected with the standard range-increasing device through an auxiliary switch; the battery standard box and the standard range-increasing device are internally provided with a standard management module. According to the standardized range-increasing power system and management method, one or more power battery standard boxes can be directly selected to use when the whole vehicle is developed in the application of the field of electric automobiles, a special battery box does not need to be specially developed, and different driving range configurations in the same electric automobile are realized; the problem that a power battery standard box and a standardrange-increasing device are shared and interchanged on a plurality of electric automobile platforms can be effectively solved, the difficulties of large-scale production, repeated use, after-sale maintenance, replacement and the like of core components of the electric automobile are overcome, and the system and method have high commercial utilization value.

Description

technical field [0001] The invention relates to the field of new energy electric vehicles, in particular to an electric vehicle power system standardization and compatibility management system and a compatibility detection method applicable to the system. Background technique [0002] At present, environmental issues are attracting more and more people's attention, green travel is popular, and the promotion of electric vehicles is also imperative. Most of the power systems of existing new energy vehicles use a single battery pack or a series connection of battery boxes. New and old batteries, Batteries with different capacities, or battery packs with different characteristics cannot be used together; the failure of one battery cell or battery pack will lead to the failure of the entire battery system. These problems greatly increase the production and screening costs of battery systems, and the secondary use of old batteries is even more difficult. There are strict requirem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L50/15
CPCB60L50/15Y02T10/70Y02T10/7072Y02T90/16
Inventor 吴德平陈香玲
Owner SUZHOU DSM GREEN POWER LTD
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