A standardized range-extended power system and management method

A power system and standard technology, applied in the field of new energy electric vehicles, can solve the problems of electrical interface and communication protocol mismatch, difficult to match each other, etc., to achieve high commercial value, reduce production costs, and improve reliability.

Active Publication Date: 2019-07-12
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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  • A standardized range-extended power system and management method
  • A standardized range-extended power system and management method
  • A standardized range-extended power system and management method

Examples

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Effect test

Embodiment 1

[0045] 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.

[0046] 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

[0061] 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 Provides 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.

[0062] 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 , err...

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Abstract

A standardized range-increasing power system and a compatible detection management method therefor. The standardized range-increasing power system comprises: a power battery standard box group, a standard range-increasing device (3), and a standard controller (4); the standard controller (4) is respectively connected to battery standard boxes (1, 2) of the power battery standard box group and the standard range-increasing device (3) by means of CAN communications lines; the battery standard boxes (1, 2) and the standard range-increasing device (3) are separately connected to a whole vehicle power direct current bus by means of a main switch, and the battery standard boxes (1, 2) are connected to the standard range-increasing device (3) by means of an auxiliary switch; the battery standard boxes (1, 2) and the standard range-increasing device (3) each are provided with a standard management module (6). In an application in the field of electric vehicles, one or more power battery standard boxes (1, 2) can be directly selected and used when the whole vehicle is developed, without specially developing a special battery box, and different driving range configurations in the same electric vehicle are realized; the problem that the power battery standard boxes (1, 2) and the standard range-increasing device (3) are shared and interchanged on a plurality of electric vehicle platforms can be effectively solved.

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 Patents(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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