Networked automobile battery management system
A car battery and management system technology, applied in the field of electric vehicles, can solve problems such as poor real-time performance and low calculation accuracy of on-board controllers, and achieve the effect of avoiding loss of accuracy
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Embodiment 1
[0057] as attached figure 1 As shown, the networked vehicle battery management system provided in this embodiment includes a power battery unit, and the power battery unit is used to provide a power source for the networked vehicle; the networked vehicle battery management system includes a vehicle terminal and a cloud The server; the vehicle-mounted terminal includes a battery management unit, a data transceiver processing unit and a vehicle-mounted controller, and the data transceiver processing unit also packs the basic information before sending the information to the cloud server, and then sends it to the cloud server.
[0058] The data sending and receiving processing units in this embodiment are a gateway controller and a Tbox.
[0059] The vehicle terminal of this embodiment also includes a CAN bus, the CAN bus is used for information transmission between the battery management unit and the data receiving and processing unit, and the battery management unit is used to ...
Embodiment 2
[0065] The difference between the networked car battery management system provided in this embodiment and the first embodiment is that, as attached image 3 As shown, the data transceiver unit of the vehicle-mounted terminal of the present embodiment is a 4G / WIFI transmission channel, and here, only the differences with Embodiment 1 are described as follows: the 4G / WIFI transmission channel and the vehicle-mounted controller pass through the CAN bus communication, the 4G / WIFI transmission channel is used to upload the basic information and receive the status information calculated from the cloud server.
Embodiment 3
[0067] This embodiment is based on a networked car battery management system provided by the present invention to realize the SOC estimation algorithm of the single battery, as shown in the attached Figure 4 As shown, the SOC estimation algorithm includes the following steps:
[0068] SOC1: the cloud server obtains the basic information of the single battery at time k: the battery management unit collects the basic information of the single battery, the basic information includes voltage, current and temperature, and transmits the basic information to the The on-board controller uploads the basic information to the cloud server through the data transceiving unit.
[0069] Wherein, in this embodiment, further, the cloud server sorts all the battery cell voltages collected, and records the maximum cell voltage V max , the number Z corresponding to the maximum monomer voltage max , number Z max Monomer temperature T Zmax , the minimum monomer voltage V min The number Z corr...
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