CN113320491A - Controller upgrading method and system - Google Patents
Controller upgrading method and system Download PDFInfo
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- CN113320491A CN113320491A CN202110808214.1A CN202110808214A CN113320491A CN 113320491 A CN113320491 A CN 113320491A CN 202110808214 A CN202110808214 A CN 202110808214A CN 113320491 A CN113320491 A CN 113320491A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
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Abstract
The embodiment of the invention provides a method and a system for upgrading a controller. The method comprises the following steps: TBOX detects whether the whole vehicle is in a high-pressure state; if the TBOX detects that the whole vehicle is in a high-voltage state, sending a first upgrading packet to the BCM, sending a second upgrading packet to the BMS, and sending a third upgrading packet to the DCDC; the first operation partition keeps outputting an ignition signal to the BMS and the DCDC, and the first backup partition installs a first upgrade package; the second operation partition keeps high-voltage electric output to the DCDC, and the second backup partition is provided with a second upgrading packet; and the third operation partition keeps enabling and keeps a state of converting high-voltage direct current into low-voltage direct current, and the third backup partition is provided with a third upgrading packet. The embodiment of the invention avoids the phenomenon of battery power failure caused by upgrading the controller under the low-voltage condition, thereby successfully upgrading the controller.
Description
[ technical field ] A method for producing a semiconductor device
The embodiment of the invention relates to the technical field of automobiles, in particular to a method and a system for upgrading a controller.
[ background of the invention ]
At present, OTA upgrading needs to be carried out on controllers of extended range electric vehicles and pure electric vehicles, OTA upgrading modes are divided into three types, and the three OTA upgrading modes comprise: OTA upgrading is carried out on the controller under the high-voltage condition, OTA upgrading is carried out on the controller under the low-voltage condition, and OTA upgrading is carried out on the controller under the low-voltage OFF grade condition. When OTA upgrading is carried out on the controller under the low-voltage condition, if the electric quantity and the voltage of the storage battery are unstable, the phenomenon of power failure of the storage battery is generated, and therefore upgrading is unsuccessful.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a method and a system for upgrading a controller, so as to avoid a power failure phenomenon of a storage battery when the controller is upgraded under a low voltage condition, so that the controller is successfully upgraded.
In a first aspect, the embodiment of the invention provides a controller upgrading method, which is applied to a controller upgrading system, wherein the system comprises a telematics TBOX, a body control system (BCM), a Battery Management System (BMS) and a direct current converter (DCDC), the BCM comprises a first running partition and a first backup partition, the BMS comprises a second running partition and a second backup partition, and the DCDC comprises a third running partition and a third backup partition;
the method comprises the following steps:
the TBOX detects whether the whole vehicle is in a high-pressure state;
if the TBOX detects that the whole vehicle is in a high-voltage state, sending a first upgrade package to the BCM, sending a second upgrade package to the BMS, and sending a third upgrade package to the DCDC;
the first operating partition keeps outputting an ignition signal to the BMS and the DCDC, and the first backup partition installs the first upgrade package;
the second running partition maintains high-voltage power output to the DCDC, and the second backup partition installs the second upgrade package;
and the third operation partition is enabled and keeps a state of converting high-voltage direct current into low-voltage direct current, and the third backup partition is provided with the third upgrading packet.
In one possible implementation manner, the method further includes:
if the TBOX detects that the whole vehicle is not in a high-voltage state, sending a high-voltage request to the BMS and sending a DCDC enabling request to the DCDC;
the first operating partition outputting an ignition signal to the second operating partition and the third operating partition;
the second operational bay maintaining a high voltage electrical output to the third operational bay in response to the ignition signal and the high voltage request;
and the third operation subarea responds to the ignition signal, the high-voltage power output and the DCDC enabling request, maintains a high-voltage direct current-to-low-voltage direct current state, and executes the step of detecting whether the whole vehicle is in a high-voltage state or not by the TBOX.
In one possible implementation, before the first operation partition outputs the ignition signal to the BMS and the DCDC, the method further includes:
the first running partition and the TBOX execute an authentication process;
the first running partition and the second running partition execute an authentication process;
and if the first running partition passes the authentication with the TBOX and passes the authentication with the second running partition, executing the step that the first running partition outputs the ignition signal to the second running partition and the third running partition.
In one possible implementation, the system further comprises an over-the-air technology (OTA) management platform;
the method further comprises the following steps:
and the OTA management platform issues the first upgrade package, the second upgrade package and the third upgrade package to the TBOX.
In one possible implementation, the ignition signal is a KL15_ ON signal.
In a second aspect, an embodiment of the present invention provides a controller upgrade system, including: the system comprises a TBOX, a BCM, a BMS and a DCDC, wherein the BCM comprises a first running partition and a first backup partition, the BMS comprises a second running partition and a second backup partition, and the DCDC comprises a third running partition and a third backup partition;
the TBOX is used for detecting whether the whole vehicle is in a high-voltage state or not, and if the whole vehicle is detected to be in the high-voltage state, a first upgrading packet is sent to the BCM; transmitting a second upgrade packet to the BMS and transmitting a third upgrade packet to the DCDC;
the first operation partition for maintaining an output of an ignition signal to the BMS and the DCDC;
the first backup partition is used for installing the first upgrade package;
the second operating partition is used for maintaining high-voltage output to the DCDC;
the second backup partition is used for installing the second upgrade package;
the third operation subarea is used for keeping enabling and keeping a state of converting high-voltage direct current into low-voltage direct current;
and the third backup partition is used for installing the third upgrading packet.
In one possible implementation manner, the TBOX is further configured to send a high voltage request to the BMS and send a DCDC enable request to the DCDC if it is detected that the entire vehicle is not in the high voltage state;
the first operating partition is further configured to output an ignition signal to the second operating partition and the third operating partition;
the second operating partition is further for maintaining a high voltage electrical output to the third operating partition in response to the ignition signal and the high voltage request;
and the third operation subarea is also used for responding to the ignition signal, the high-voltage power output and the DCDC enabling request, maintaining a high-voltage direct current-to-low-voltage direct current state, and executing the step that the TBOX detects whether the whole vehicle is in a high-voltage state.
In a possible implementation manner, the first running partition is further configured to perform an authentication procedure with the TBOX, and perform an authentication procedure with the second running partition; and if the authentication with the TBOX passes and the authentication with the second operation partition passes, executing a step of outputting an ignition signal to the second operation partition and the third operation partition.
In one possible implementation, the system further includes:
and the OTA management platform is used for issuing the first upgrade package, the second upgrade package and the third upgrade package to the TBOX.
In one possible implementation, the ignition signal is a KL15_ ON signal.
In the technical scheme provided by the embodiment of the invention, if the TBOX detects that the whole vehicle is in a high-voltage state, a first upgrade package is sent to the BCM, a second upgrade package is sent to the BMS, and a third upgrade package is sent to the DCDC; the first operation partition keeps outputting an ignition signal to the BMS and the DCDC, and the first backup partition installs a first upgrade package; the second operation partition keeps high-voltage electric output to the DCDC, and the second backup partition is provided with a second upgrading packet; in the embodiment of the invention, when the whole vehicle is in a high-voltage state, the BCM, the BMS and the DCDC are upgraded by adopting the backup subareas in the double subareas, so that the electric quantity and the voltage of the storage battery are stably acquired in the upgrading process, the phenomenon of power failure of the storage battery caused by upgrading the controller under the low-voltage condition is avoided, and the controller is successfully upgraded.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a controller upgrade system according to an embodiment of the present invention;
fig. 2 is a flowchart of a controller upgrading method according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., A and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Fig. 1 is a schematic structural diagram of a controller upgrade system according to an embodiment of the present invention, and as shown in fig. 1, the system includes: a Telematics BOX (TBOX) 2, a body control system (BCM) 3, a Battery Management System (BMS) 4, a direct-current (DCDC) 5, and a storage battery 6, wherein the BCM3 includes a first operating partition 31, a first backup partition 32, the BMS 4 includes a second operating partition 41, a second backup partition 42, and the DCDC 5 includes a third operating partition 51 and a third backup partition 52. TBOX 2 is connected to BCM3, TBOX 2 is connected to BMS 4, TBOX 2 is connected to DCDC 5, BCM3 is connected to BMS 4, BCM3 is connected to DCDC 5, BMS 4 is connected to DCDC 5, and DCDC 5 is connected to battery 6. The TBOX 2 is used for detecting whether the whole vehicle is in a high-voltage state, and if the whole vehicle is detected to be in the high-voltage state, the first upgrade package is sent to the BCM3, the second upgrade package is sent to the BMS 4, and the third upgrade package is sent to the DCDC 5. The first operating partition 31 serves to keep the ignition signal output to the BMS 4 and the DCDC 5, and the first backup partition 32 serves to install the first upgrade package. The second runtime partition 41 is used to maintain a high voltage electrical output to the DCDC 5 and the second backup partition 42 is used to install a second upgrade package. The third operating sub-section 51 is used for keeping the high voltage dc to low voltage dc, and outputting the low voltage dc to the battery 6 to keep supplying the battery 6 and the low voltage system of the whole vehicle with electric energy, for example, 13.8V. The third backup partition 52 is used to install a third upgrade package.
In the embodiment of the invention, the type of the whole vehicle is an extended range Electric Vehicle (EVR) or an Electric Vehicle (EV).
In the embodiment of the invention, the Flash memory (Flash) of the BCM3 is divided into two partitions, that is, the Flash memory (Flash) of the BCM3 is set as a double partition, the double partition of the BCM3 may include a first operating partition 31 and a first backup partition 32, the first operating partition 31 is a Flash memory (Flash) partition, and the first backup partition 32 is a Flash memory (Flash) partition; dividing a Flash memory (Flash) of the BMS 4 into two partitions, namely, setting the Flash memory (Flash) of the BMS 4 as a dual partition, wherein the dual partition of the BMS 4 may include a second running partition 41 and a second backup partition 42, and then the second running partition 41 is a Flash memory (Flash) partition and the second backup partition 42 is a Flash memory (Flash) partition; the Flash memory (Flash) of the DCDC 5 is divided into two partitions, that is, the Flash memory (Flash) of the DCDC 5 is set as a dual partition, the dual partition of the DCDC 5 may include a third operating partition 51 and a third backup partition 52, and then the third operating partition 51 is a Flash memory (Flash) partition, and the third backup partition 52 is a Flash memory (Flash) partition.
In the embodiment of the present invention, TBOX 2 is further configured to send a high voltage request to BMS 4 and send a DCDC enable request to DCDC 5 if it is detected that the entire vehicle is not in a high voltage state. The first operating sub-section 31 is also configured to output an ignition signal to the second operating sub-section 41 and the third operating sub-section 51, the second operating sub-section 41 is further configured to maintain a high voltage electrical output to the third operating sub-section 51 in response to the ignition signal and the high voltage request; the third operating sub-zone 51 is also operable to maintain the high-voltage-to-low-voltage dc state and perform the step of TBOX 2 detecting whether the entire vehicle is in a high-voltage state in response to the ignition signal, the high-voltage power output, and the DCDC enable request.
The first running partition 31 is further configured to perform an authentication procedure with the TBOX 2, and perform an authentication procedure with the second running partition 41; if the authentication with TBOX 2 is passed and the authentication with the second operating partition 41 is passed, the step of outputting the ignition signal to the second operating partition 41 and the third operating partition 51 is performed.
As shown in fig. 1, further, the system further includes: an Over-the-Air technology (OTA) management platform 1, the OTA management platform 1 being connected to the TBOX 2. The OTA management platform 1 is used for issuing a first upgrade package, a second upgrade package and a third upgrade package to the TBOX 2.
In the technical scheme provided by the embodiment of the invention, if the TBOX detects that the whole vehicle is in a high-voltage state, a first upgrade package is sent to the BCM, a second upgrade package is sent to the BMS, and a third upgrade package is sent to the DCDC; the first operation partition keeps outputting an ignition signal to the BMS and the DCDC, and the first backup partition installs a first upgrade package; the second operation partition keeps high-voltage electric output to the DCDC, and the second backup partition is provided with a second upgrading packet; in the embodiment of the invention, when the whole vehicle is in a high-voltage state, the BCM, the BMS and the DCDC are upgraded by adopting the backup subareas in the double subareas, so that the electric quantity and the voltage of the storage battery are stably acquired in the upgrading process, the phenomenon of power failure of the storage battery caused by upgrading the controller under the low-voltage condition is avoided, and the controller is successfully upgraded.
An embodiment of the present invention provides a controller upgrading method, which may be implemented based on the controller upgrading system shown in fig. 1. Fig. 2 is a flowchart of a controller upgrading method according to an embodiment of the present invention, and as shown in fig. 2, the method includes:
Specifically, the OTA management platform issues a first upgrade package, a second upgrade package and a third upgrade package to the TBOX through a Mobile Communication Technology, for example, the Mobile Communication Technology may include the 4th Generation Mobile Communication Technology (abbreviated as 4G) or a fifth Generation Mobile Communication Technology (abbreviated as 5G).
In the embodiment of the invention, the purpose of sending the upgrade package to the TBOX by the OTA management platform is to perform OTA upgrade on the controller. For example, the controller may include a BCM, BMS, DCDC, central control, or meter.
In the embodiment of the invention, the first upgrade package is used for upgrading the BCM, the second upgrade package is used for upgrading the BMS, and the third upgrade package is used for upgrading the DCDC. Correspondingly, the OTA management platform also issues an upgrade package corresponding to other controllers to the TBOX, for example, an upgrade package corresponding to the central control and an upgrade package corresponding to the meter. The upgrading method comprises the following steps that an upgrading package corresponding to the central control is used for upgrading the central control, and an upgrading package corresponding to the instrument is used for upgrading the instrument.
102, detecting whether the whole vehicle is in a high-pressure state by using TBOX, and if not, executing a step 103; if yes, go to step 108.
In this step, if the TBOX detects that the entire vehicle is not in a high-voltage state, it indicates that the battery power and voltage of the entire vehicle are not stably collected, and at this time, step 103 needs to be executed to maintain the high-voltage state; and if the TBOX detects that the whole vehicle is in a high-voltage state, the electric quantity and voltage of a storage battery of the whole vehicle are stably acquired, and then step 108 is executed.
In this step, TBOX continuously sends a plurality of high voltage requests to BMS, for example, the plurality of high voltage requests are 3 frame high voltage requests, in order to ensure that BMS can successfully receive the high voltage requests sent by TBOX to BMS.
Specifically, the first running partition and the TBOX can be authenticated through an asymmetric encryption algorithm or a symmetric encryption algorithm so as to realize authentication between the BCM and the TBOX; the first running partition and the second running partition can be authenticated through an asymmetric encryption algorithm or a symmetric encryption algorithm so as to realize authentication between the BCM and the BMS. Thereby improving the safety of the upgrading process of the controller.
And 105, the first operation subarea outputs an ignition signal to the second operation subarea and the third operation subarea.
The ignition signal is a low-voltage electric signal, and the low-voltage electric signal is a KL15_ ON signal.
And step 108, the TBOX sends a first upgrade packet to the BCM, sends a second upgrade packet to the BMS, and sends a third upgrade packet to the DCDC.
In an embodiment of the present invention, the first backup partition installs the first upgrade package while the first operating partition keeps outputting the ignition signal to the BMS and the DCDC. In other words, the first running partition is required to keep outputting the ignition signal to the BMS and the DCDC during the installation of the first upgrade package by the first backup partition.
And 110, the second running partition keeps high-voltage electric output to the DCDC, and the second backup partition installs a second upgrading packet.
In the embodiment of the invention, the second upgrade package is installed in the second backup partition in the process of keeping the high-voltage power output from the second operation partition to the DCDC. In other words, the second running partition is required to maintain a high voltage output to the DCDC during installation of the second upgrade package by the second backup partition.
And step 111, enabling the third operation partition, maintaining the state of converting high-voltage direct current into low-voltage direct current, and installing a third upgrading package in the third backup partition.
In the embodiment of the invention, a third upgrade package is installed in a third backup partition in the process of enabling the third running partition and maintaining the state of converting high-voltage direct current into low-voltage direct current. In other words, during the process of installing the third upgrade package in the third backup partition, the third operating partition needs to be enabled to maintain the state of converting the high voltage direct current into the low voltage direct current.
In the technical scheme provided by the embodiment of the invention, if the TBOX detects that the whole vehicle is in a high-voltage state, a first upgrade package is sent to the BCM, a second upgrade package is sent to the BMS, and a third upgrade package is sent to the DCDC; the first operation partition keeps outputting an ignition signal to the BMS and the DCDC, and the first backup partition installs a first upgrade package; the second operation partition keeps high-voltage electric output to the DCDC, and the second backup partition is provided with a second upgrading packet; in the embodiment of the invention, when the whole vehicle is in a high-voltage state, the BCM, the BMS and the DCDC are upgraded by adopting the backup subareas in the double subareas, so that the electric quantity and the voltage of the storage battery are stably acquired in the upgrading process, the phenomenon of power failure of the storage battery caused by upgrading the controller under the low-voltage condition is avoided, and the controller is successfully upgraded.
In the embodiment of the invention, in the upgrading process, the BCM, the BMS and the DCDC are upgraded by adopting the backup subarea in the double subareas, the running subareas run normally, the whole vehicle is kept in a high-voltage state, and the storage battery is continuously supplied with power, so that the problem of power failure of the storage batteries of the extended-range electric vehicle and the pure electric vehicle in the OTA upgrading process is solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A controller upgrading method is applied to a controller upgrading system, the system comprises a telematics TBOX, a vehicle body control system (BCM), a Battery Management System (BMS) and a direct current converter (DCDC), the BCM comprises a first operation partition and a first backup partition, the BMS comprises a second operation partition and a second backup partition, and the DCDC comprises a third operation partition and a third backup partition;
the method comprises the following steps:
the TBOX detects whether the whole vehicle is in a high-pressure state;
if the TBOX detects that the whole vehicle is in a high-voltage state, sending a first upgrade package to the BCM, sending a second upgrade package to the BMS, and sending a third upgrade package to the DCDC;
the first operating partition keeps outputting an ignition signal to the BMS and the DCDC, and the first backup partition installs the first upgrade package;
the second running partition maintains high-voltage power output to the DCDC, and the second backup partition installs the second upgrade package;
and the third operation partition is enabled and keeps a state of converting high-voltage direct current into low-voltage direct current, and the third backup partition is provided with the third upgrading packet.
2. The method of claim 1, further comprising:
if the TBOX detects that the whole vehicle is not in a high-voltage state, sending a high-voltage request to the BMS and sending a DCDC enabling request to the DCDC;
the first operating partition outputting an ignition signal to the second operating partition and the third operating partition;
the second operational bay maintaining a high voltage electrical output to the third operational bay in response to the ignition signal and the high voltage request;
and the third operation subarea responds to the ignition signal, the high-voltage power output and the DCDC enabling request, maintains a high-voltage direct current-to-low-voltage direct current state, and executes the step of detecting whether the whole vehicle is in a high-voltage state or not by the TBOX.
3. The method of claim 2, wherein before the first operating partition outputs an ignition signal to the BMS and the DCDC, further comprising:
the first running partition and the TBOX execute an authentication process;
the first running partition and the second running partition execute an authentication process;
and if the first running partition passes the authentication with the TBOX and passes the authentication with the second running partition, executing the step that the first running partition outputs the ignition signal to the second running partition and the third running partition.
4. The method of claim 1, wherein the system further comprises an over-the-air technology (OTA) management platform;
the method further comprises the following steps:
and the OTA management platform issues the first upgrade package, the second upgrade package and the third upgrade package to the TBOX.
5. The method according to any of claims 1 to 4, characterized in that the ignition signal is a KL15_ ON signal.
6. A controller upgrade system, comprising: the system comprises a TBOX, a BCM, a BMS and a DCDC, wherein the BCM comprises a first running partition and a first backup partition, the BMS comprises a second running partition and a second backup partition, and the DCDC comprises a third running partition and a third backup partition;
the TBOX is used for detecting whether the whole vehicle is in a high-voltage state or not, and if the whole vehicle is detected to be in the high-voltage state, the TBOX sends a first upgrade packet to the BCM, sends a second upgrade packet to the BMS and sends a third upgrade packet to the DCDC;
the first operation partition for maintaining an output of an ignition signal to the BMS and the DCDC;
the first backup partition is used for installing the first upgrade package;
the second operating partition is used for maintaining high-voltage output to the DCDC;
the second backup partition is used for installing the second upgrade package;
the third operation subarea is used for keeping enabling and keeping a state of converting high-voltage direct current into low-voltage direct current;
and the third backup partition is used for installing the third upgrading packet.
7. The system of claim 6, wherein the TBOX is further configured to send a high voltage request to the BMS and a DCDC enable request to the DCDC if it is detected that the entire vehicle is not in a high voltage state;
the first operating partition is further configured to output an ignition signal to the second operating partition and the third operating partition;
the second operating partition is further for maintaining a high voltage electrical output to the third operating partition in response to the ignition signal and the high voltage request;
and the third operation subarea is also used for responding to the ignition signal, the high-voltage power output and the DCDC enabling request, maintaining a high-voltage direct current-to-low-voltage direct current state, and executing the step that the TBOX detects whether the whole vehicle is in a high-voltage state.
8. The system of claim 7, wherein the first running partition is further configured to perform an authentication procedure with the TBOX and an authentication procedure with the second running partition; and if the authentication with the TBOX passes and the authentication with the second operation partition passes, executing a step of outputting an ignition signal to the second operation partition and the third operation partition.
9. The system of claim 6, further comprising:
and the OTA management platform is used for issuing the first upgrade package, the second upgrade package and the third upgrade package to the TBOX.
10. The system according to any of claims 6 to 9, characterized in that the ignition signal is a KL15_ ON signal.
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| CN202110808214.1A CN113320491A (en) | 2021-07-16 | 2021-07-16 | Controller upgrading method and system |
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| CN115480802A (en) * | 2022-10-18 | 2022-12-16 | 深圳市兆兴博拓科技股份有限公司 | Lithium battery BMS Internet of things system updating method, device, medium and equipment |
| CN116513084A (en) * | 2023-05-09 | 2023-08-01 | 广州汽车集团股份有限公司 | Vehicle control method, device, terminal and medium |
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Application publication date: 20210831 |