System for distributing BMS addresses on electric cars

A technology of electric vehicles and addresses, applied in the direction of electric digital data processing, instruments, etc., can solve the problems of increasing costs and wasting resources

CN107766271APending Publication Date: 2018-03-06浙江高泰昊能科技有限公司
5 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-03-06

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a system for distributing BMS addresses on electric cars. The system comprises a primary control module and a plurality of secondary control modules; different pieces of identification information are written in the secondary control modules; a CAN bus is connected among the secondary control modules in series; when each secondary control module is electrified, the identification information is sent through the CAN bus and any secondary control module receives the identification information of the other secondary control modules; after receiving the identification information of all the other secondary control modules on the CAN bus, each secondary control module adds the own identification information, and carries out sorting according to the identification information so as to generate address information which is used for determining a physical address of the secondary control module; after determining new address information, the secondary control modules communicate the main control module via the new address information; and time limiting devices are arranged in the secondary control modules. According to the system disclosed by the invention, BMS systems on electric cars completely carry out address distribution through software logic, so that the cost is saved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The invention relates to the field of electric vehicles, in particular to a BMS address self-allocation system on electric vehicles. Background technique

[0002] The BMS system on an electric vehicle is divided into a master control and a slave control. Each master control communicates with n slaves. Generally, a slave control corresponds to a battery box, and manages multiple batteries in series in the battery box. Each slave control passes CAN The bus network reports the temperature, voltage, power and other information of the battery box under management. In order to facilitate the operation and maintenance of the battery replacement system, the system requires that each battery box can be arbitrarily replaced, so there is a problem. Since the slave controllers in each battery box are the same, when n slave controllers are arbitrarily combined, The host cannot distinguish the data reported by each slave through the ID of the slave control CAN message, ...

Examples

Embodiment Construction

[0012] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0013] Such as figure 2 The BMS address self-allocation system on an electric vehicle shown includes a master control module and a slave control module. There are several slave control modules, and each slave control module is written with identification information, and the identification information is different. The same, and there is a CAN bus between the slave modules; each slave module will send identification information through the CAN bus when it is powered on, and any...