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CN110365453B - Self-adaptive calibration method of T-BOX for electric vehicle - Google Patents

Self-adaptive calibration method of T-BOX for electric vehicle Download PDF

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Publication number
CN110365453B
CN110365453B CN201910527292.7A CN201910527292A CN110365453B CN 110365453 B CN110365453 B CN 110365453B CN 201910527292 A CN201910527292 A CN 201910527292A CN 110365453 B CN110365453 B CN 110365453B
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vehicle
box
vin code
mounted terminal
vin
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CN110365453A (en
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苏毅
李晓明
顾晔
张毅
段世忠
刘小星
李春东
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Dongfeng Trucks Co ltd
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Dongfeng Trucks Co ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/24Testing correct operation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40Bus networks
    • H04L12/40006Architecture of a communication node
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40Bus networks
    • H04L2012/40208Bus networks characterized by the use of a particular bus standard
    • H04L2012/40215Controller Area Network CAN

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Small-Scale Networks (AREA)

Abstract

The T-BOX is in signal connection with a VECU and a BMS respectively through a CAN bus, and is in signal connection with a remote service and management platform through a wireless network; the control method comprises the following steps: the method comprises the steps of obtaining a VIN code, obtaining battery information, and packaging and sending. The T-BOX of the design can independently receive VIN code information and battery information, simplifies the delivery steps of T-BOX loading and enlarges the application range of the T-BOX.

Description

Self-adaptive calibration method of T-BOX for electric vehicle
Technical Field
The invention relates to a self-adaptive calibration method of a T-BOX for an electric vehicle, which is particularly suitable for a vehicle-mounted terminal of a remote service and management system of the electric vehicle.
Background
The existing T-BOX of the electric automobile is provided with a specific T-BOX aiming at a certain type of automobile, and T-BOX software is calibrated when the automobile is off-line or the T-BOX software is used for uploading battery information of the automobile and VIN codes of the automobile corresponding to different types of automobiles.
The national standard requires that the uploaded data comprise: firstly, vehicle information such as VIN codes; and II, power battery information comprises the number of single batteries, the number of battery temperature probes, and corresponding voltage values and probe temperature values of each single battery. Because of the variation of these information due to different vehicle type configurations, there are two solutions to the currently used T-BOX: firstly, designing T-BOX with various models to adapt to different vehicle type configurations; secondly, parameters are written one by adopting an offline calibration mode. By adopting the method, the T-BOX with various types needs to be designed, so that the same product has various types and is inconvenient to manage. In the second method, correct program parameters need to be determined in an off-line calibration mode, and calibration needs to be performed through special equipment, so that a series of problems such as production line transformation and the like are caused.
The invention patent with Chinese patent publication number CN105871523A and publication date 2016, 8, 17 discloses a T-BOX, comprising: the CAN bus port is connected with the first Ethernet port; the central processing unit is respectively connected with the CAN bus port and the first Ethernet port; and the central processing unit is used for selecting the CAN bus port and/or the first Ethernet port to send data to the vehicle body controller according to configuration information after being connected with the vehicle body controller in a matching way. Although the invention can realize the communication between the vehicle and the remote platform, the following defects still exist:
the vehicle-mounted terminal can only adapt to fixed vehicle types, and the VIN code and the battery information of the vehicle-mounted terminal need to be calibrated during vehicle loading.
Disclosure of Invention
The invention aims to solve the problems that the application range is narrow, basic information needs additional equipment to be manually calibrated or parameters need to be written in advance in the prior art, and provides the self-adaptive calibration method of the T-BOX for the electric vehicle, which has the advantages of wide application range and capability of autonomously acquiring information.
In order to achieve the above purpose, the technical solution of the invention is as follows:
a self-adaptive calibration method of a T-BOX for an electric vehicle is characterized in that the T-BOX of a vehicle-mounted terminal is respectively in signal connection with a vehicle control unit (VECU) and a Battery Management System (BMS) through a CAN bus, and the T-BOX of the vehicle-mounted terminal is in signal connection with a remote service and management platform through a wireless network;
the calibration method comprises the following steps:
step one, acquiring a VIN code:
when the vehicle-mounted terminal T-BOX is electrified for the first time, the vehicle-mounted terminal T-BOX sends a request to the vehicle control unit VECU through the CAN bus to read the VIN code, the vehicle control unit VECU sends a VIN code message to the vehicle-mounted terminal T-BOX through the CAN bus after receiving the request, the vehicle-mounted terminal T-BOX receives the VIN code message and judges the integrity of the received VIN code, if the received VIN code is complete, the VIN code is successfully obtained, if the received VIN code is incomplete or the VIN code is not received, the vehicle-mounted terminal T-BOX resends the request to read the VIN code message, and the VIN code is successfully obtained until the complete VIN code; storing the obtained VIN code into a storage space of the vehicle-mounted terminal T-BOX;
when the vehicle-mounted terminal T-BOX is not electrified for the first time, the vehicle-mounted terminal T-BOX sends a request to the vehicle control unit VECU through the CAN bus to read the VIN code, the vehicle control unit VECU sends a VIN code message to the vehicle-mounted terminal T-BOX through the CAN bus after receiving the request, the vehicle-mounted terminal T-BOX receives the VIN code message and judges the integrity of the received VIN code, if the received VIN code is complete, the VIN code is successfully obtained, if the received VIN code is incomplete or the VIN code is not received, the vehicle-mounted terminal T-BOX resends the request to read the VIN code message, and the VIN code is successfully obtained until the complete VIN code; comparing the VIN code obtained this time with the VIN code in the storage space of the vehicle-mounted terminal T-BOX, entering the next step if the two VIN codes are consistent, continuously sending two requests to read the VIN code message if the two VIN codes are inconsistent, comparing the VIN code information received for the last three times, storing the new VIN code in the storage space of the vehicle-mounted terminal T-BOX if the two VIN codes are inconsistent, and maintaining the VIN code stored in the previous vehicle-mounted terminal T-BOX if the two VIN codes are inconsistent;
and step two, acquiring battery information:
after the vehicle-mounted terminal T-BOX is electrified and the battery management system BMS is electrified, the battery management system BMS sends a battery information message to the vehicle-mounted terminal T-BOX through the CAN bus, and the vehicle-mounted terminal T-BOX analyzes information in the battery message after receiving the battery information message;
step three, packaging and sending:
and the vehicle-mounted terminal T-BOX packs the VIN stored in the vehicle-mounted terminal T-BOX in the first step and the battery information analyzed in the second step to obtain a whole vehicle data information packet, and the vehicle-mounted terminal T-BOX uploads the VIN and the battery information to the remote service and management platform through a wireless communication network.
The whole vehicle data information packet comprises vehicle VIN information and battery information, and the battery information comprises the number of single batteries, the number of voltage acquisition points, the number of temperature probe acquisition points, each single voltage value and a probe temperature value.
Compared with the prior art, the invention has the beneficial effects that:
1. the vehicle-mounted terminal T-BOX in the self-adaptive calibration method of the T-BOX for the electric vehicle can autonomously receive VIN code information and battery information, and transmits the VIN code information and the battery information to the remote service and management platform after integration, so that the VIN code information and the battery information do not need to be manually imported during vehicle loading, the delivery steps of vehicle-mounted terminal T-BOX loading are simplified, and the application range of the vehicle-mounted terminal T-BOX is expanded. Therefore, the vehicle-mounted terminal T-BOX of the design can autonomously receive VIN code information and battery information, simplifies the delivery steps of loading the vehicle-mounted terminal T-BOX, and enlarges the application range of the vehicle-mounted terminal T-BOX.
2. According to the self-adaptive calibration method of the T-BOX for the electric vehicle, when the T-BOX of the vehicle-mounted terminal is not electrified for the first time, the previous VIN code can be verified, so that the accuracy of the VIN code is ensured. Therefore, the VIN code checking program is arranged in the design, and the accuracy of the VIN code is ensured.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a control schematic of the present invention.
In the figure: the system comprises a vehicle-mounted terminal T-BOX1, a vehicle control unit VECU2, a battery management system BMS3 and a remote service and management platform 4.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 2, in the adaptive calibration method of the T-BOX for the electric vehicle, the vehicle-mounted terminal T-BOX1 is respectively in signal connection with a vehicle control unit VECU2 and a battery management system BMS3 through a CAN bus, and the vehicle-mounted terminal T-BOX1 is in signal connection with a remote service and management platform 4 through a wireless network;
the calibration method comprises the following steps:
step one, acquiring a VIN code:
when the vehicle-mounted terminal T-BOX1 is powered on for the first time, the vehicle-mounted terminal T-BOX1 sends a request to the vehicle control unit VECU2 through the CAN bus to read the VIN code, the vehicle control unit VECU2 sends a VIN code message to the vehicle-mounted terminal T-BOX1 through the CAN bus after receiving the request, the vehicle-mounted terminal T-BOX1 receives the VIN code message and judges the integrity of the received VIN code, if the received VIN code is complete, the VIN code is successfully obtained, if the received VIN code is incomplete or the VIN code is not received, the vehicle-mounted terminal T-BOX1 resends the request to read the VIN code message, and the VIN code is successfully obtained until the complete; storing the obtained VIN code into a storage space of a vehicle-mounted terminal T-BOX 1;
when the vehicle-mounted terminal T-BOX1 is not powered on for the first time, the vehicle-mounted terminal T-BOX1 sends a request to the vehicle control unit VECU2 through the CAN bus to read the VIN code, the vehicle control unit VECU2 sends a VIN code message to the vehicle-mounted terminal T-BOX1 through the CAN bus after receiving the request, the vehicle-mounted terminal T-BOX1 receives the VIN code message and judges the integrity of the received VIN code, if the received VIN code is complete, the VIN code is successfully obtained, if the received VIN code is incomplete or the VIN code is not received, the request to read the VIN code message is retransmitted, and the VIN code is successfully obtained until the complete VIN code is received; comparing the VIN code obtained this time with the VIN code in the storage space of the vehicle-mounted terminal T-BOX1, entering the next step if the two VIN codes are consistent, continuing to send out two requests to read the VIN code message if the two VIN codes are not consistent, comparing the VIN code information received for the last three times, storing the new VIN code in the storage space of the vehicle-mounted terminal T-BOX1 if the two VIN codes are not consistent, and maintaining the VIN code stored in the previous vehicle-mounted terminal T-BOX1 if the two VIN codes are not consistent;
and step two, acquiring battery information:
after the vehicle-mounted terminal T-BOX1 is electrified and the battery management system BMS3 is electrified, the battery management system BMS3 sends a battery information message to the vehicle-mounted terminal T-BOX1 through the CAN bus, and the vehicle-mounted terminal T-BOX1 analyzes the information in the battery message after receiving the battery information message;
step three, packaging and sending:
and the vehicle-mounted terminal T-BOX1 packages the VIN code stored in the vehicle-mounted terminal T-BOX1 in the first step and the battery information analyzed in the second step to obtain a finished vehicle data information packet, and the vehicle-mounted terminal T-BOX1 uploads the finished vehicle data information packet to the remote service and management platform 4 through a wireless communication network.
The whole vehicle data information packet comprises vehicle VIN information and battery information, and the battery information comprises the number of single batteries, the number of voltage acquisition points, the number of temperature probe acquisition points, each single voltage value and a probe temperature value.
The principle of the invention is illustrated as follows:
the vehicle-mounted terminal T-BOX1 is a vehicle-mounted terminal, the vehicle-mounted terminal T-BOX1 sends a VIN code reading request to the vehicle control unit VECU2, receives VIN code information and battery information, integrates the information, packs and sends the information to the remote service and management platform 4.
The vehicle control unit VECU2 is a vehicle control unit, and the vehicle control unit VECU2 sends a VIN code message to the vehicle-mounted terminal T-BOX1 after receiving the VIN code reading request message sent by the vehicle-mounted terminal T-BOX 1.
The battery management system BMS3 is a battery management system, and the battery management system BMS3 can send a battery information message to the vehicle-mounted terminal T-BOX1 after being powered on.
Example 1:
a self-adaptive calibration method of a T-BOX for an electric vehicle is characterized in that a vehicle-mounted terminal T-BOX1 is respectively in signal connection with a vehicle control unit VECU2 and a battery management system BMS3 through a CAN bus, and the vehicle-mounted terminal T-BOX1 is in signal connection with a remote service and management platform 4 through a wireless network;
the calibration method comprises the following steps:
step one, acquiring a VIN code:
when the vehicle-mounted terminal T-BOX1 is powered on for the first time, the vehicle-mounted terminal T-BOX1 sends a request to the vehicle control unit VECU2 through the CAN bus to read the VIN code, the vehicle control unit VECU2 sends a VIN code message to the vehicle-mounted terminal T-BOX1 through the CAN bus after receiving the request, the vehicle-mounted terminal T-BOX1 receives the VIN code message and judges the integrity of the received VIN code, if the received VIN code is complete, the VIN code is successfully obtained, if the received VIN code is incomplete or the VIN code is not received, the vehicle-mounted terminal T-BOX1 resends the request to read the VIN code message, and the VIN code is successfully obtained until the complete; storing the obtained VIN code into a storage space of a vehicle-mounted terminal T-BOX 1;
when the vehicle-mounted terminal T-BOX1 is not powered on for the first time, the vehicle-mounted terminal T-BOX1 sends a request to the vehicle control unit VECU2 through the CAN bus to read the VIN code, the vehicle control unit VECU2 sends a VIN code message to the vehicle-mounted terminal T-BOX1 through the CAN bus after receiving the request, the vehicle-mounted terminal T-BOX1 receives the VIN code message and judges the integrity of the received VIN code, if the received VIN code is complete, the VIN code is successfully obtained, if the received VIN code is incomplete or the VIN code is not received, the request to read the VIN code message is retransmitted, and the VIN code is successfully obtained until the complete VIN code is received; comparing the VIN code obtained this time with the VIN code in the storage space of the vehicle-mounted terminal T-BOX1, entering the next step if the two VIN codes are consistent, continuing to send out two requests to read the VIN code message if the two VIN codes are not consistent, comparing the VIN code information received for the last three times, storing the new VIN code in the storage space of the vehicle-mounted terminal T-BOX1 if the two VIN codes are not consistent, and maintaining the VIN code stored in the previous vehicle-mounted terminal T-BOX1 if the two VIN codes are not consistent;
and step two, acquiring battery information:
after the vehicle-mounted terminal T-BOX1 is electrified and the battery management system BMS3 is electrified, the battery management system BMS3 sends a battery information message to the vehicle-mounted terminal T-BOX1 through the CAN bus, and the vehicle-mounted terminal T-BOX1 analyzes the information in the battery message after receiving the battery information message; the battery information packet comprises the number of single batteries, the number of voltage acquisition points, the number of temperature probe acquisition points, each single voltage value and a probe temperature value;
step three, packaging and sending:
the vehicle-mounted terminal T-BOX1 packs the VIN code stored in the vehicle-mounted terminal T-BOX1 in the first step and the battery information analyzed in the second step to obtain a whole vehicle data information packet, and the vehicle-mounted terminal T-BOX1 uploads the VIN code and the battery information to the remote service and management platform 4 through a wireless communication network; the vehicle data information packet comprises vehicle VIN information and battery information.

Claims (2)

1. A self-adaptive calibration method of T-BOX for electric vehicle is characterized in that:
the vehicle-mounted terminal T-BOX (1) is respectively in signal connection with a vehicle control unit VECU (2) and a battery management system BMS (3) through a CAN bus, and the vehicle-mounted terminal T-BOX (1) is in signal connection with a remote service and management platform (4) through a wireless network;
the calibration method comprises the following steps:
step one, acquiring a VIN code:
when the vehicle-mounted terminal T-BOX (1) is electrified for the first time, the vehicle-mounted terminal T-BOX (1) sends a request to the vehicle control unit VECU (2) through the CAN bus to read the VIN code, the vehicle control unit VECU (2) sends a VIN code message to the vehicle-mounted terminal T-BOX (1) through the CAN bus after receiving the request, the vehicle-mounted terminal T-BOX (1) receives the VIN code message and judges the integrity of the received VIN code, if the received VIN code is complete, the VIN code is successfully obtained, if the received VIN code is incomplete or the VIN code is not received, the vehicle-mounted terminal T-BOX (1) sends the request to read the VIN code message again, and the VIN code is successfully obtained until the; storing the obtained VIN code into a storage space of a vehicle-mounted terminal T-BOX (1);
when the vehicle-mounted terminal T-BOX (1) is not electrified for the first time, the vehicle-mounted terminal T-BOX (1) sends a request to the vehicle control unit VECU (2) through the CAN bus to read the VIN code, the vehicle control unit VECU (2) sends a VIN code message to the vehicle-mounted terminal T-BOX (1) through the CAN bus after receiving the request, the vehicle-mounted terminal T-BOX (1) receives the VIN code message and judges the integrity of the received VIN code, if the received VIN code is complete, the VIN code is successfully obtained, if the received VIN code is incomplete or the VIN code is not received, the vehicle-mounted terminal T-BOX (terminal) resends the request to read the VIN code message, and the VIN code is successfully obtained until the; comparing the VIN code obtained this time with the VIN code in the storage space of the vehicle-mounted terminal T-BOX (1), entering the next step if the two VIN codes are consistent, continuously sending two requests to read the VIN code message if the two VIN codes are not consistent, comparing the VIN code information received for the last three times, storing the new VIN code into the storage space of the vehicle-mounted terminal T-BOX (1) if the two VIN codes are consistent, and maintaining the VIN code stored in the previous vehicle-mounted terminal T-BOX (1) if the two VIN codes are inconsistent;
and step two, acquiring battery information:
after the vehicle-mounted terminal T-BOX (1) is electrified and the battery management system BMS (3) is electrified, the battery management system BMS (3) sends a battery information message to the vehicle-mounted terminal T-BOX (1) through a CAN bus, and the vehicle-mounted terminal T-BOX (1) analyzes information in the battery message after receiving the battery information message;
step three, packaging and sending:
and the vehicle-mounted terminal T-BOX (1) packs the VIN stored in the vehicle-mounted terminal T-BOX (1) in the first step and the battery information analyzed in the second step to obtain a finished vehicle data information packet, and the vehicle-mounted terminal T-BOX (1) uploads the VIN to the remote service and management platform (4) through a wireless communication network.
2. The adaptive calibration method of the T-BOX for the electric vehicle as claimed in claim 1, wherein:
the whole vehicle data information packet comprises vehicle VIN information and battery information, and the battery information comprises the number of single batteries, the number of voltage acquisition points, the number of temperature probe acquisition points, each single voltage value and a probe temperature value.
CN201910527292.7A 2019-06-18 2019-06-18 Self-adaptive calibration method of T-BOX for electric vehicle Active CN110365453B (en)

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CN114157685B (en) * 2021-10-29 2023-12-15 际络科技(上海)有限公司 VIN code self-learning method and system for automatic driving vehicle
CN116461385A (en) * 2023-06-19 2023-07-21 合肥力高动力科技有限公司 Self-adaptive configuration method for battery pack parameters in T-BOX for electric vehicle

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