Address calibration method and calibration device of battery monitoring unit
A technology of battery monitoring and calibration methods, which is applied in the direction of battery/fuel cell control devices, electrical components, secondary batteries, etc., and can solve the inconvenience of main control unit supervision, confusion of various battery monitoring units, and normal operation of distributed battery management systems and other issues to achieve the effect of ensuring normal work, improving calibration efficiency and accuracy, and avoiding duplication of address calibration
Inactive Publication Date: 2019-08-23
ANHUI GVB RENEWABLE ENERGY TECH
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Problems solved by technology
[0003] In the distributed battery management system, the appearance of each battery monitoring unit is the same. Therefore, in the same distributed battery management system, it is impossible to distinguish each battery monitoring unit, and it is easy to confuse each battery monitoring unit, which is not convenient for the main control unit. Supervision; the main control unit cannot accurately distinguish each battery monitoring unit, which will lead to the normal operation of the entire distributed battery management system
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[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0058] see figure 1 , in the distributed battery management system of electric vehicles, the distributed battery management system includes a main control unit and several battery monitoring units, wherein each battery monitoring unit is connected to the main control unit through the CAN bus, and each battery monitoring unit The units are all provided with connector ports, and each connector port is provided with pins.
[0059] In the wiring harness productio...
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The invention discloses an address calibration method and a calibration device of a battery monitoring unit. The calibration method comprises the following steps that a connector port of a first battery monitoring unit receives a level signal outputted by a sampling circuit through a pin; the first battery monitoring unit analyzes each received level signal to obtain a level signal state of the connector port of the first battery monitoring unit; and the first battery monitoring unit sets the address of the first battery monitoring unit according to the level signal state of the port of the first battery monitoring unit. In the distributed battery management system, after the address of each battery monitoring unit is calibrated, the calibrated address of the battery monitoring unit can besent to the main control unit through a CAN bus, the main control unit receives the respective address sent by each battery monitoring unit, and the main control unit monitors and manages the address, so that the node fault can be reported timely, the fault node position can be determined, and the troubleshooting work can be guided.
Description
technical field [0001] The invention relates to the technical field of battery management systems, in particular to an address calibration method and a calibration device for a battery monitoring unit. Background technique [0002] New energy electric vehicle battery management systems are mainly divided into master-slave and distributed. At present, many electric vehicles use distributed battery management systems. The distributed battery management system includes several battery monitoring units and a master control unit. Each The battery monitoring units are connected to the main control unit through the CAN bus, each battery monitoring unit corresponds to one or more battery modules, and the battery monitoring unit is used to monitor the battery module group corresponding to the battery monitoring unit, while the main control unit The control unit is used to monitor and manage each battery monitoring unit. [0003] In the distributed battery management system, the appe...
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Login to View More IPC IPC(8): H01M10/42B60L58/18
CPCB60L58/18H01M10/4207H01M10/425H01M2010/4271H01M2010/4278Y02E60/10Y02T10/70
Inventor 陈涛李华孙路史兴领
Owner ANHUI GVB RENEWABLE ENERGY TECH