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Method and system for detecting OTA upgrading storage battery capacity of new energy automobile

A new energy vehicle, capacity detection technology, applied in the field of new energy vehicle OTA upgrade battery capacity detection, can solve problems such as loss of function, OTA upgrade failure, controller system crash, etc. The effect of sub-deep discharge

Pending Publication Date: 2021-11-26
VOYAH AUTOMOBILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the car is upgraded by OTA, the whole car is not started or not connected to high voltage. If the battery power is not enough, the OTA upgrade will fail. In severe cases, the controller system will crash and the function will be lost.

Method used

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  • Method and system for detecting OTA upgrading storage battery capacity of new energy automobile
  • Method and system for detecting OTA upgrading storage battery capacity of new energy automobile
  • Method and system for detecting OTA upgrading storage battery capacity of new energy automobile

Examples

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Embodiment 1

[0033] Embodiment 1 provided by the present invention is an embodiment of a method for detecting the battery capacity of a new energy vehicle OTA upgrade provided by the present invention, combining figure 2 As can be seen, this embodiment includes:

[0034] After the car receives the OTA upgrade request, T-BOX sends a signal to DCDC to start the battery capacity detection process.

[0035] Step 1, DCDC detects the terminal voltage of the battery, compares it with the OCV data of the internally stored battery to obtain the battery capacity, and the OCV data is the data representing the corresponding relationship between the battery's initial voltage and the battery capacity;

[0036] In a possible embodiment, the DCDC detects the terminal voltage of the battery through a wire harness directly connected to the battery.

[0037] In a possible embodiment, the OCV data of the storage battery is obtained through testing, and the testing process includes:

[0038] Collect the his...

Embodiment 2

[0049] Embodiment 2 provided by the present invention is an embodiment of a new energy vehicle OTA upgrade battery capacity detection system provided by the present invention. figure 2 A structural diagram of a new energy vehicle OTA upgrade battery capacity detection system provided for the embodiment of the present invention, combined with figure 2 It can be seen that the embodiment of the detection system includes: a DCDC, a gateway and a T-BOX; the DCDC is directly connected to the storage battery through a wiring harness, and the gateway is connected to the DCDC and the T-BOX through a CAN bus.

[0050] The DCDC detects the terminal voltage of the storage battery, compares it with the OCV data of the storage battery stored inside to obtain the battery capacity, and the OCV data is the data representing the corresponding relationship between the starting voltage of the storage battery and the storage battery capacity; the DCDC passes the The gateway forwards the informat...

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Abstract

The invention relates to a method and a system for detecting the OTA upgrading storage battery capacity of a new energy automobile. The method comprises the steps: detecting the terminal voltage of a storage battery through a DC-DC (Direct Current-Direct Current) converter, comparing the terminal voltage with the internally stored OCV (Open Circuit Voltage) data of the storage battery to obtain the capacity of the storage battery, The OCV data is data representing the corresponding relation between the open-end voltage of the storage battery and the capacity of the storage battery; the DC-DC (Direct Current Direct Current) forwards the information of the capacity of a storage battery to a T-BOX (Telematics BOX, a vehicle-mounted network terminal) through a GW (GateWay); the T-BOX compares the calculated electric quantity required by the OTA upgrading with the capacity of the storage battery, and the OTA upgrading is carried out when the capacity of the storage battery meets the set requirement of the OTA upgrading; a storage battery sensor is omitted, the voltage of the storage battery is detected by the DCDC directly connected with the storage battery, the OCV data of the storage battery is stored in the DCDC, the capacity of the storage battery is compared, the capacity information of the storage battery is sent to the T-BOX, whether OTA upgrading is carried out or not is judged, the detection method is accurate, and the cost of the whole vehicle is reduced.

Description

technical field [0001] The invention relates to the field of energy vehicles, in particular to a method and system for detecting the capacity of a new energy vehicle OTA upgraded storage battery. Background technique [0002] When a traditional car has a system defect, the car manufacturer needs to initiate a recall process and return to the factory for a unified system upgrade. On the other hand, OTA (Over-the-Air Technology) can remotely and quickly complete defect repair in the form of data packets, which can reduce the recall cost caused by software defects. In addition, smart connected cars can be upgraded through OTA time after time to gradually unlock new functions for car owners, optimize product experience, perform rapid iterations, and provide better services. [0003] However, when the car is upgraded through OTA, the whole vehicle is not started or is not connected to high voltage. If the battery power is not enough, the OTA upgrade will fail. In severe cases, t...

Claims

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Application Information

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IPC IPC(8): B60L58/12B60L58/10G01R31/388B60L1/00
CPCB60L58/12B60L58/10G01R31/388B60L1/00Y02T10/70
Inventor 郑建桥
Owner VOYAH AUTOMOBILE TECH CO LTD
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