CN114024832B - New energy power system network architecture and network segment fault processing method and device - Google Patents

Abstract

This application discloses a new energy power system network architecture, a method and device for network segment fault processing. The new energy power system network architecture includes a vehicle domain controller, a power system domain controller, a power controller and a new energy controller. The power system The domain controller includes a control unit and a computing unit; the power system domain controller and the vehicle domain controller are connected by the first network segment through the switch, and the control unit and the computing unit are connected by the second network segment and the third network segment through the switch. The unit is connected to the power controller, new energy controller and vehicle domain controller through the fourth network segment, and the computing unit is connected to the new energy controller and control unit through the fifth network segment. When the first network segment, the second network segment, the third network segment or the fifth network segment fails, the transmission signal is backed up through other network segments other than the faulty network segment to obtain the backup transmission signal and transmit it.

Description

New energy power system network architecture, network segment fault handling methods and devices

Technical field

This application relates to the technical field of new energy power systems, and in particular to new energy power system network architecture, network segment fault handling methods and devices.

Background technique

With the rapid development of vehicle technology, vehicle functions are becoming more and more complex, there are more and more controllers on the vehicle, and the amount of information required between each controller to implement functions is also increasing. Especially for the research and development of intelligent driving, intelligent diagnosis, intelligent computing and other functions in new energy powered vehicles, the network stability of the new energy power system network architecture is also of great importance. In order to meet the large data transmission needs of the new energy power system, the current new energy power system The system network architecture uses a mixed network segment of Ethernet and CAN FD.

As shown in Figure 1, the structural diagram of the new energy power system network architecture in the prior art is shown. The new energy power system network architecture includes a vehicle domain controller, a power system domain controller, a power controller and a new energy controller, and network segments. 1. Network segment 2, network segment 3, network segment 4 and network segment 5. The power system domain controller includes a control unit and a computing unit; the power system domain controller and the vehicle domain controller are connected by network segment 1 through a switch and are controlled by The unit and the computing unit are connected by network segment 2 and network segment 3 through the switch, the control unit and the power controller are connected by network segment 4, and the control unit and the new energy controller are connected by network segment 5; among them, network segment 1 and network segment 2 And network segment 3 is the network segment of Ethernet, and network segment 4 and network segment 5 are the network segments of CAN FD.

The inventor found through research that in the existing technology network architecture of new energy power systems, when a network failure occurs in a certain network segment, even if each controller works normally, normal transmission of transmission signals between controllers cannot be achieved, resulting in The vehicle cannot be driven and the vehicle suddenly stops, resulting in a poor user driving experience.

Contents of the invention

In view of this, embodiments of the present application provide new energy power system network architecture, network segment fault handling methods and devices. The new energy power system network architecture enhances the flexibility and fault tolerance of the network, and improves the stability and reliability of the network. Even if one of the network segments fails, it can be ensured that the vehicle can still be controlled to enter the fault mode and run at low speed, and the vehicle can be controlled to realize basic driving functions and drive to a safe area, avoiding the situation where the vehicle is forced to stop and the user's driving experience is poor.

In the first aspect, embodiments of the present application provide a new energy power system network architecture. The new energy power system network architecture includes:

Vehicle domain controller, power system domain controller, power controller and new energy controller, the power system domain controller includes a control unit and a computing unit;

The power system domain controller and the vehicle domain controller are connected by a first network segment through a switch, and the control unit and the computing unit are connected by a second network segment and a third network segment through a switch. The unit is connected to the power controller, the new energy controller and the vehicle domain controller through a fourth network segment, and the computing unit is connected to the new energy controller and the control unit through a fifth network segment. connect;

The first network segment, the second network segment and the third network segment are Ethernet network segments, and the fourth network segment and the fifth network segment are CAN FD network segments.

Optionally, the power controller includes a safety drive-related power controller and a safety drive-irrelevant power controller, and the new energy controller includes a motor controller and a high-voltage battery controller.

In the second aspect, embodiments of the present application provide a method for handling network segment faults, which is applied to the new energy power system network architecture described in the first aspect. The method includes:

When a fault occurs in the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power system network architecture, through the first network segment, the second network segment, the The network segments in the third network segment, the fourth network segment and the fifth network segment except the faulty network segment back up transmission signals to obtain backup transmission signals;

Utilizing the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except the faulty network segment to transmit the backup Transmission signal.

Optionally, when the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power system network architecture fails, it is specifically when the first network segment fails. ;

The transmission signal is transmitted through the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment. The specific steps of backing up and obtaining the backup transmission signal include: backing up the transmission signal of the vehicle domain controller, the transmission signal of the safety drive-related power controller and the transmission signal of the new energy controller through the fourth network segment to obtain the backup transmission signal of the vehicle domain controller. , backup safety drive-related power controller transmission signals and backup new energy controller transmission signals;

Said utilizing the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment to transmit the data. The backup transmission signal is specifically: the vehicle domain controller uses the fourth network segment to transmit the backup vehicle domain controller transmission signal to the control unit in the power system domain controller; the safety drive-related power controller uses the The fourth network segment directly transmits the transmission signal of the backup safety drive-related power controller to the vehicle domain controller; the new energy controller uses the fourth network segment to directly transmit the transmission signal of the backup new energy controller. to the vehicle domain controller.

Optionally, when the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power system network architecture fails, it is specifically when the second network segment fails. ;

The transmission signal is transmitted through the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment. The specific steps of backing up and obtaining the backup transmission signal include: backing up the transmission signal of the vehicle domain controller, the transmission signal of the safety drive-related power controller and the transmission signal of the new energy controller through the fourth network segment to obtain the backup transmission signal of the vehicle domain controller. , backup safety drive-related power controller transmission signals and backup new energy controller transmission signals; back up the control unit transmission signals through the fifth network segment to obtain the backup control unit transmission signals;

Said utilizing the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment to transmit the data. The backup transmission signal is specifically: the vehicle domain controller uses the fourth network segment to transmit the backup vehicle domain controller transmission signal to the control unit in the power system domain controller; the safety drive-related power controller uses the The fourth network segment directly transmits the transmission signal of the backup safety drive-related power controller to the vehicle domain controller; the new energy controller uses the fourth network segment to directly transmit the transmission signal of the backup new energy controller. to the vehicle domain controller; the control unit uses the fifth network segment to directly transmit the transmission signal of the backup control unit to the computing unit.

Optionally, when the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power system network architecture fails, it is specifically when the third network segment fails. ;

The transmission signal is transmitted through the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment. The backup and obtaining the backup transmission signal specifically includes: backing up the vehicle domain controller transmission signal and the control unit transmission signal through the fifth network segment to obtain the backup vehicle domain controller transmission signal and the backup control unit transmission signal;

Said utilizing the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment to transmit the data. The backup transmission signal is specifically: the vehicle domain controller transmits the backup vehicle domain controller transmission signal to the computing unit via the control unit using the fifth network segment; the control unit uses the fifth network segment to transmit the backup signal. The backup control unit transmits signals directly to the computing unit.

Optionally, when the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power system network architecture fails, it is specifically when the fifth network segment fails. ;

The transmission signal is transmitted through the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment. The backup and obtaining the backup transmission signal specifically includes: backing up the transmission signal of the new energy controller through the fourth network segment to obtain the backup transmission signal of the new energy controller;

Said utilizing the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment to transmit the data. The backup transmission signal is specifically: the new energy controller uses the fourth network segment to transmit the backup new energy controller transmission signal to the control unit.

Optional, also includes:

When a switch in the new energy power system network architecture fails, the vehicle domain controller transmission signal, the safety drive-related power controller transmission signal and the new energy controller transmission signal are backed up through the fourth network segment to obtain backup. The vehicle domain controller transmits signals, backs up safety drive-related power controller transmission signals, and backs up new energy controller transmission signals; the vehicle domain controller transmission signals and control unit transmission signals are backed up through the fifth network segment to obtain backup. The vehicle domain controller transmits signals and the backup control unit transmits signals;

The vehicle domain controller uses the fourth network segment to transmit the transmission signal of the backup vehicle domain controller to the control unit in the power system domain controller; the safety drive-related power controller uses the fourth network segment to transmit the The backup safety drive-related power controller transmission signal is directly transmitted to the vehicle domain controller; the new energy controller uses the fourth network segment to directly transmit the backup new energy controller transmission signal to the vehicle domain control The vehicle domain controller uses the fifth network segment to transmit the backup vehicle domain controller transmission signal to the computing unit via the control unit; the control unit uses the fifth network segment to transmit the backup control unit signal Directly transferred to the computing unit.

Optional, also includes:

When it is confirmed that the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power system network architecture fails, immediately start preparing the first network segment, the second network segment , the network segment switching of the third network segment, the fourth network segment and the fifth network segment except the faulty network segment, the network segment switching time is less than the minimum network segment failure confirmation time.

In the third aspect, embodiments of the present application provide a device for handling network segment faults, which is applied to the new energy power system network architecture described in the first aspect. The device includes:

A backup unit configured to provide backup through the first network segment, the second network segment, and the fifth network segment when a failure occurs in the first network segment, the second network segment, the third network segment, or the fifth network segment in the new energy power system network architecture. The network segments among the network segment, the third network segment, the fourth network segment and the fifth network segment except the faulty network segment backup the transmission signal to obtain the backup transmission signal;

A transmission unit configured to utilize the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment. Segment transmission of the backup transmission signal.

Compared with the prior art, this application has at least the following advantages:

Using the technical solutions of the embodiments of this application, the new energy power system network architecture includes a vehicle domain controller, a power system domain controller, a power controller and a new energy controller. The power system domain controller includes a control unit and a computing unit; power The system domain controller and the vehicle domain controller are connected by the first network segment through the switch. The control unit and the computing unit are connected by the second network segment and the third network segment through the switch. The control unit is connected with the power controller, new energy controller and The vehicle domain controller is connected by the fourth network segment, and the computing unit, the new energy controller and the control unit are connected by the fifth network segment. When the first network segment, the second network segment, the third network segment or the fifth network segment fails, the transmission signal is backed up through other network segments other than the faulty network segment to obtain the backup transmission signal and transmit it. It can be seen that the new energy power system network architecture enhances the flexibility and fault tolerance of the network, and improves the stability and reliability of the network. Even if a certain network segment fails, the fault can be detected through other network segments other than the faulty network segment. Backup transmission of the transmission signal can ensure that the vehicle can still be controlled to enter the fault mode and run at low speed, control the vehicle to realize basic driving functions and drive to a safe area, and avoid the situation where the vehicle is forced to stop and cause a poor user driving experience.

Description of the drawings

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments of the present application or the prior art. Obviously, the drawings in the following description Only some embodiments are recorded in this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of the network architecture of a new energy power system in the prior art;

Figure 2 is a schematic structural diagram of a new energy power system network architecture provided by an embodiment of the present application;

Figure 3 is a schematic structural diagram of another new energy power system network architecture provided by an embodiment of the present application;

Figure 4 is a schematic flowchart of a method for handling network segment faults provided by an embodiment of the present application;

Figure 5 is a schematic structural diagram of a device for handling network segment faults provided by an embodiment of the present application.

Detailed ways

In order to enable those in the technical field to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only These are part of the embodiments of this application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

In the prior art new energy power system network architecture shown in Figure 1 above, when a network failure occurs in a certain network segment, even if each controller works normally, normal transmission of transmission signals between controllers cannot be achieved, resulting in The vehicle cannot be driven and the vehicle suddenly stops, resulting in a poor user driving experience.

In order to solve this problem, in the embodiment of the present application, the new energy power system network architecture includes a vehicle domain controller, a power system domain controller, a power controller and a new energy controller. The power system domain controller includes a control unit and Computing unit; the power system domain controller and the vehicle domain controller are connected by the first network segment through the switch. The control unit and the computing unit are connected by the second network segment and the third network segment through the switch. The control unit is connected with the power controller and the new network segment. The energy controller and the vehicle domain controller are connected by the fourth network segment, and the computing unit, the new energy controller and the control unit are connected by the fifth network segment. When the first network segment, the second network segment, the third network segment or the fifth network segment fails, the transmission signal is backed up through other network segments other than the faulty network segment to obtain the backup transmission signal and transmit it. It can be seen that the new energy power system network architecture enhances the flexibility and fault tolerance of the network, and improves the stability and reliability of the network. Even if a certain network segment fails, the fault can be detected through other network segments other than the faulty network segment. Backup transmission of the transmission signal can ensure that the vehicle can still be controlled to enter the fault mode and run at low speed, control the vehicle to realize basic driving functions and drive to a safe area, and avoid the situation where the vehicle is forced to stop and cause a poor user driving experience.

The specific implementation of the new energy power system network architecture, network segment fault handling method and device in the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Example architecture

Referring to Figure 2, a schematic structural diagram of a new energy power system network architecture in an embodiment of the present application is shown. In this embodiment of the present application, the new energy power system network architecture may specifically include:

Vehicle domain controller 201, power system domain controller 202, power controller 203, new energy controller 204. The power system domain controller 202 includes a control unit 2021 and a computing unit 2022;

The power system domain controller 202 and the vehicle domain controller 201 are connected by a first network segment through a switch, and the control unit 2021 and the computing unit 2022 are connected by a second network segment and a third network segment through a switch. , the control unit 2021 is connected to the power controller 203, the new energy controller 204 and the vehicle domain controller 201 by the fourth network segment, and the computing unit 2022 is connected to the new energy controller 204 And the control unit 2021 is connected by the fifth network segment;

The first network segment, the second network segment and the third network segment are Ethernet network segments, and the fourth network segment and the fifth network segment are CAN FD network segments. For example, the bandwidth of the first network segment may be 1G, and the bandwidth of the second network segment and the third network segment may be 100M. The fourth network segment can be understood as the power network segment, and the fourth network segment can be understood as the new energy network segment.

It can be understood that the control unit 2021 in the power system domain controller 202 is mainly responsible for real-time control of the new energy power system, and the computing unit 2022 in the power system domain controller 202 is mainly responsible for data processing of intelligent functions.

It should be noted that power controllers can be divided into two major types of controllers according to whether they control the safe driving function of the vehicle. One type is power controllers related to safety driving, such as gear controllers, etc.; the other type is irrelevant to safety driving. Power controller. The controllers included in new energy controllers can be divided into motor controllers and high-voltage battery controllers. Therefore, in an optional implementation of the embodiment of the present application, the power controller 203 includes a safety drive-related power controller and a safety drive-irrelevant power controller, and the new energy controller 204 includes a motor controller and a high-voltage power controller. Battery controller. For example, Figure 3 is a schematic structural diagram of another new energy power system network architecture. Based on Figure 2, the power controller 203 includes a safety drive-related power controller 2031 and a safety drive-irrelevant power controller 2032. , the new energy controller 204 includes a motor controller 2041 and a high-voltage battery controller 2042.

Compared with the schematic structural diagram of the new energy power system network architecture in the prior art shown in Figure 1, the schematic structural diagram of the new energy power system network architecture provided by the embodiment of the present application shown in Figure 2 not only includes the control unit 2021 and The power controller 203 is connected by the fourth network segment, and the new energy controller 204 and the vehicle domain controller 201 are also connected to the fourth network segment; not only the control unit 2021 and the new energy controller 204 are connected by the fifth network segment, the calculation Unit 2022 and new energy controller 204 are also connected to the fifth network segment connection.

Through various implementations provided in this embodiment, the new energy power system network architecture includes a vehicle domain controller, a power system domain controller, a power controller and a new energy controller. The power system domain controller includes a control unit and a computing unit. ;The power system domain controller and the vehicle domain controller are connected by the first network segment through the switch. The control unit and the computing unit are connected by the second network segment and the third network segment through the switch. The control unit is connected with the power controller and new energy control unit. The controller and the vehicle domain controller are connected by the fourth network segment, and the computing unit, the new energy controller and the control unit are connected by the fifth network segment. It can be seen that compared with the existing new energy power system network architecture, this new energy power system network architecture has enhanced the flexibility and fault tolerance rate of the network, and improved the stability and reliability of the network.

Example methods

Referring to Figure 4, a schematic flowchart of a method for handling network segment faults in an embodiment of the present application is shown. In this embodiment, applied to the new energy power system network architecture described in the above architecture embodiment, the method may include the following steps:

Step 401: When a fault occurs in the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power system network architecture, use the first network segment, the second network segment , the network segments among the third network segment, the fourth network segment and the fifth network segment except the faulty network segment backup the transmission signal to obtain the backup transmission signal.

Step 402: Use the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment, and the fifth network segment except for the faulty network segment for transmission. The backup transmission signal.

On the basis of the new energy power system network architecture described in the above architecture embodiment, when the network is running in good condition, because Ethernet has the advantage of large data transmission volume, the relationship between the vehicle domain controller 201 and the power system domain controller 202 The signal transmission between the control unit 2021 and the computing unit 2022 is mainly realized through Ethernet; that is, the signal transmission between the vehicle domain controller 201 and the power system domain controller 202 is realized through the first network segment, and the control unit 2021 and Signal transmission is implemented between the computing units 2022 through the second network segment, the switch, and the third network segment. The power controller 203 and the control unit 2021 of the power system domain controller 202 realize signal transmission through the fourth network segment, and the new energy controller 204 and the control unit 2021 of the power system domain controller 202 realize signal transmission through the fifth network segment. Signal transmission to other controllers via Ethernet.

When a network segment among the first network segment, the second network segment, the third network segment and the fifth network segment fails, even if each controller works normally, normal transmission of transmission signals between the controllers cannot be achieved. When it is necessary to back up the transmission signal through the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except the faulty network segment, obtain the backup transmission signal and transmit it. This is to ensure that the vehicle can still achieve basic driving functions and avoid emergency stops.

It can be understood that a failure in one of the first network segment, the second network segment, the third network segment and the fifth network segment may be caused by a failure in the first network segment, or a failure in the second network segment, or a failure in the second network segment. Either the third network segment fails, or the fifth network segment fails. Specifically, on the basis of the new energy power system network architecture described in the above architecture embodiment, the following steps will be explained by taking the failure of the first network segment, the second network segment, the third network segment or the fifth network segment as an example. Implementation of step 401 and step 402:

First, the first network segment fails

It should be noted that when the first network segment fails, signal transmission between the vehicle domain controller 201 and the power system domain controller 202 cannot be realized through the first network segment; the safety drive-related power controller 2031 and the control unit 2021 After the signal transmission is realized through the fourth network segment, the signal cannot be transmitted through the second network segment, the switch, the first network segment and the vehicle domain controller 201; similarly, the new energy controller 204 and the control unit 2021 pass through the fifth network segment. After the signal transmission is realized through the second network segment, the signal cannot be transmitted through the second network segment, the switch, the first network segment and the vehicle domain controller 201. Therefore, in an optional implementation of the embodiment of this application, when the first network segment fails, signals are transmitted to the vehicle domain controller, safety drive-related power controllers and new energy sources are transmitted through the fourth network segment. The controller transmission signals are backed up to obtain backup vehicle domain controller transmission signals, backup safety drive-related power controller transmission signals and backup new energy controller transmission signals; so that the vehicle domain controller 201 uses the fourth network segment to backup the entire vehicle The domain controller transmission signal is transmitted to the control unit 2021 in the power system domain controller 202; the safety drive-related power controller 2031 uses the fourth network segment to directly transmit the backup safety drive-related power controller transmission signal to the vehicle domain controller 201; The new energy controller 204 uses the fourth network segment to directly transmit the backup new energy controller transmission signal to the vehicle domain controller 201.

Second, the second network segment fails

It should be noted that when the second network segment fails, signal transmission between the vehicle domain controller 201 and the control unit 2021 in the power system domain controller 202 cannot be achieved through the first network segment, the switch, and the second network segment; The control unit 2021 and the computing unit 2022 cannot realize signal transmission through the second network segment, the switch and the third network segment; similarly, after the safety drive-related power controller 2031 and the control unit 2021 realize signal transmission through the fourth network segment, It is also impossible to transmit signals through the second network segment, the switch, the first network segment and the vehicle domain controller 201; after the new energy controller 204 and the control unit 2021 implement signal transmission through the fifth network segment, they are also unable to transmit signals through the second network segment. Segments, switches, and the first network segment realize signal transmission with the vehicle domain controller 201. Therefore, in an optional implementation of the embodiment of this application, when the second network segment fails, signals are transmitted to the vehicle domain controller, safety drive-related power controllers and new energy sources through the fourth network segment. The controller transmission signals are backed up to obtain backup vehicle domain controller transmission signals, backup safety drive-related power controller transmission signals and backup new energy controller transmission signals; the control unit transmission signals are backed up through the fifth network segment to obtain a backup control unit Transmit signals; so that the vehicle domain controller 201 uses the fourth network segment to transmit the backup vehicle domain controller transmission signal to the control unit 2021 in the power system domain controller 202; the safety drive-related power controller 2031 uses the fourth network segment to transmit the signal. The backup safety drive-related power controller transmission signals are directly transmitted to the vehicle domain controller 201; the new energy controller 204 uses the fourth network segment to directly transmit the backup new energy controller transmission signals to the vehicle domain controller 201; the control unit 2021 The fifth network segment is used to directly transmit the backup control unit transmission signal to the computing unit 2022.

The third and third network segments are faulty

It should be noted that when the third network segment fails, signal transmission between the vehicle domain controller 201 and the control unit 2022 in the power system domain controller 202 cannot be achieved through the first network segment, the switch, and the third network segment; Signal transmission between the control unit 2021 and the computing unit 2022 cannot be achieved through the second network segment, the switch, and the third network segment. Therefore, in an optional implementation manner of the embodiment of the present application, when the third network segment fails, the vehicle domain controller transmission signal and the control unit transmission signal are backed up through the fifth network segment to obtain the backup vehicle domain. The controller transmission signal and the backup control unit transmission signal; so that the vehicle domain controller 201 uses the fifth network segment to transmit the backup vehicle domain controller transmission signal to the computing unit 2022 via the control unit 2021; the control unit 2021 uses the fifth network segment The backup control unit transmission signal is directly transmitted to the computing unit 2022.

The fourth and fifth network segments fail.

It should be noted that the new energy controller 204 and the control unit 2021 cannot achieve signal transmission through the fifth network segment; therefore, in an optional implementation of the embodiment of this application, when the fifth network segment fails ; Back up the transmission signal of the new energy controller through the fourth network segment to obtain the transmission signal of the backup new energy controller; so that the new energy controller 204 uses the fourth network segment to transmit the transmission signal of the backup new energy controller to control unit 2021.

It should also be noted that switches in the new energy power system network architecture may also fail. When a switch fails, it is equivalent to a combination of the above-mentioned first network segment failure, second network segment failure and third network segment failure. Therefore, in an optional implementation manner of the embodiment of the present application, it also includes: when the switch in the new energy power system network architecture fails, transmitting signals to the vehicle domain controller through the fourth network segment and safely driving relevant power The controller transmission signal and the new energy controller transmission signal are backed up to obtain the backup vehicle domain controller transmission signal, the backup safety drive-related power controller transmission signal and the backup new energy controller transmission signal; through the fifth network segment, the entire vehicle domain The controller transmission signal and the control unit transmission signal are backed up to obtain the backup vehicle domain controller transmission signal and the backup control unit transmission signal; so that the vehicle domain controller 201 uses the fourth network segment to transmit the backup vehicle domain controller transmission signal to The control unit 2021 in the power system domain controller 202; the safety drive-related power controller 2031 uses the fourth network segment to directly transmit the backup safety drive-related power controller transmission signal to the vehicle domain controller 201; the new energy controller 204 uses the fourth network segment The fourth network segment transmits the backup new energy controller transmission signals directly to the vehicle domain controller 201; the vehicle domain controller 201 uses the fifth network segment to transmit the backup vehicle domain controller transmission signals to the computing unit 2022 via the control unit 2021. ; The control unit 2021 uses the fifth network segment to directly transmit the backup control unit transmission signal to the computing unit 2022.

It should also be noted that when a certain network segment fails, when the network segment failure is confirmed, preparations for network segment switching immediately begin, and the network segment switching time is less than the minimum network segment failure confirmation time. Therefore, in an optional implementation manner of the embodiment of the present application, it also includes: confirming that the first network segment, the second network segment, the third network segment or the fifth network segment occurs in the new energy power system network architecture. In the event of a fault, immediately start preparing for the first network segment, the second network segment, the third network segment, the fourth network segment, and the fifth network segment except for the faulty network segment. The network segment switching time is less than the minimum network segment failure confirmation time.

Through various implementations provided in this embodiment, the new energy power system network architecture includes a vehicle domain controller, a power system domain controller, a power controller and a new energy controller. The power system domain controller includes a control unit and a computing unit. ;The power system domain controller and the vehicle domain controller are connected by the first network segment through the switch. The control unit and the computing unit are connected by the second network segment and the third network segment through the switch. The control unit is connected with the power controller and new energy control unit. The controller and the vehicle domain controller are connected by the fourth network segment, and the computing unit, the new energy controller and the control unit are connected by the fifth network segment. When the first network segment, the second network segment, the third network segment or the fifth network segment fails, the transmission signal is backed up through other network segments other than the faulty network segment to obtain the backup transmission signal and transmit it. It can be seen that the new energy power system network architecture enhances the flexibility and fault tolerance of the network, and improves the stability and reliability of the network. Even if a certain network segment fails, the fault can be detected through other network segments other than the faulty network segment. Backup transmission of the transmission signal can ensure that the vehicle can still be controlled to enter the fault mode and run at low speed, control the vehicle to realize basic driving functions and drive to a safe area, and avoid the situation where the vehicle is forced to stop and cause a poor user driving experience.

Exemplary device

Referring to FIG. 5 , a schematic structural diagram of a device for handling network segment faults in an embodiment of the present application is shown. In the embodiment of this application, applied to the new energy power system network architecture described in the above architecture embodiment, the device may specifically include:

The first backup unit 501 is used for when a failure occurs in the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power system network architecture, through the first network segment, all network segments. The network segments among the second network segment, the third network segment, the fourth network segment and the fifth network segment except the faulty network segment backup the transmission signal to obtain the backup transmission signal;

The first transmission unit 502 is configured to use the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment. The backup transmission signal is transmitted to an external network segment.

In an optional implementation of the embodiment of the present application, when a failure occurs in the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power system network architecture, specifically: When the first network segment fails;

The first backup unit 501 is specifically used to back up vehicle domain controller transmission signals, safety drive-related power controller transmission signals and new energy controller transmission signals through the fourth network segment to obtain backup vehicle domain control. device transmission signal, backup safety drive-related power controller transmission signal and backup new energy controller transmission signal;

The first transmission unit 502 is specifically used for: the vehicle domain controller to use the fourth network segment to transmit the backup vehicle domain controller transmission signal to the control unit in the power system domain controller; safety driving related power control The controller uses the fourth network segment to directly transmit the backup safety drive-related power controller transmission signal to the vehicle domain controller; the new energy controller uses the fourth network segment to transmit the backup new energy controller The transmission signal is transmitted directly to the vehicle domain controller.

In an optional implementation of the embodiment of the present application, when a failure occurs in the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power system network architecture, specifically: When the second network segment fails;

The first backup unit 501 is specifically used to back up vehicle domain controller transmission signals, safety drive-related power controller transmission signals and new energy controller transmission signals through the fourth network segment to obtain backup vehicle domain control. The controller transmission signal, the backup safety drive-related power controller transmission signal and the backup new energy controller transmission signal; the control unit transmission signal is backed up through the fifth network segment to obtain the backup control unit transmission signal;

The first transmission unit 502 is specifically used for: the vehicle domain controller to use the fourth network segment to transmit the backup vehicle domain controller transmission signal to the control unit in the power system domain controller; safety driving related power control The controller uses the fourth network segment to directly transmit the backup safety drive-related power controller transmission signal to the vehicle domain controller; the new energy controller uses the fourth network segment to transmit the backup new energy controller The transmission signal is directly transmitted to the vehicle domain controller; the control unit uses the fifth network segment to directly transmit the transmission signal of the backup control unit to the computing unit.

In an optional implementation of the embodiment of the present application, when a failure occurs in the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power system network architecture, specifically: When the third network segment fails;

The first backup unit 501 is specifically configured to: backup the vehicle domain controller transmission signal and the control unit transmission signal through the fifth network segment to obtain the backup vehicle domain controller transmission signal and the backup control unit transmission signal;

The first transmission unit 502 is specifically configured to: the vehicle domain controller transmits the backup vehicle domain controller transmission signal to the computing unit via the control unit using the fifth network segment; the control unit uses the fifth network segment. The segment transmits the backup control unit transmission signal directly to the computing unit.

In an optional implementation of the embodiment of the present application, when a failure occurs in the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power system network architecture, specifically: When the fifth network segment fails;

The first backup unit 501 is specifically configured to: back up the transmission signal of the new energy controller through the fourth network segment to obtain the backup transmission signal of the new energy controller;

The first transmission unit 502 is specifically configured to: the new energy controller use the fourth network segment to transmit the backup new energy controller transmission signal to the control unit.

In an optional implementation of the embodiment of this application, the device further includes:

The second backup unit is used to transmit signals to the vehicle domain controller, safety drive-related power controller transmission signals and new energy control through the fourth network segment when the switch in the new energy power system network architecture fails. The controller transmission signal is backed up to obtain the backup vehicle domain controller transmission signal, the backup safety drive-related power controller transmission signal and the backup new energy controller transmission signal; the vehicle domain controller transmits signals and controls through the fifth network segment The unit transmission signal is backed up to obtain the backup vehicle domain controller transmission signal and the backup control unit transmission signal;

The second transmission unit is used by the vehicle domain controller to use the fourth network segment to transmit the transmission signal of the backup vehicle domain controller to the control unit in the power system domain controller; the safety drive-related power controller uses the The fourth network segment directly transmits the transmission signal of the backup safety drive-related power controller to the vehicle domain controller; the new energy controller uses the fourth network segment to directly transmit the transmission signal of the backup new energy controller. to the vehicle domain controller; the vehicle domain controller transmits the backup vehicle domain controller transmission signal to the computing unit via the control unit using the fifth network segment; the control unit uses the fifth network segment to The backup control unit transmits signals directly to the computing unit.

In an optional implementation of the embodiment of this application, the device further includes:

The network segment fault confirmation and network segment switching unit is used to immediately start preparing all network segments when it is confirmed that the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power system network architecture fails. Switching of network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment, the network The segment switching time is less than the minimum network segment failure confirmation time.

Through various implementation methods provided in this embodiment, the new energy power system network architecture includes a vehicle domain controller, a power system domain controller, a power controller and a new energy controller, a first network segment, a second network segment, a third network segment, and a new energy controller. In the third network segment, the fourth network segment and the fifth network segment, the power system domain controller includes a control unit and a computing unit; the power system domain controller and the vehicle domain controller are connected by the first network segment through a switch, and the control unit and computing unit The unit is connected by the second network segment and the third network segment through the switch. The control unit is connected with the power controller, new energy controller and vehicle domain controller by the fourth network segment. The computing unit is connected with the new energy controller and the control unit by The fifth network segment is connected. When the first network segment, the second network segment, the third network segment or the fifth network segment fails, the transmission signal is backed up through other network segments other than the faulty network segment to obtain the backup transmission signal and transmit it. It can be seen that the new energy power system network architecture enhances the flexibility and fault tolerance of the network, and improves the stability and reliability of the network. Even if a certain network segment fails, the fault can be detected through other network segments other than the faulty network segment. Backup transmission of the transmission signal can ensure that the vehicle can still be controlled to enter the fault mode and run at low speed, control the vehicle to realize basic driving functions and drive to a safe area, and avoid the situation where the vehicle is forced to stop and cause a poor user driving experience.

Each embodiment in this specification is described in a progressive manner. Each embodiment focuses on its differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple. For relevant details, please refer to the description in the method section.

Those skilled in the art may further realize that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of both. In order to clearly illustrate the possible functions of hardware and software, Interchangeability, in the above description, the composition and steps of each example have been generally described according to functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. The terms "comprises," "comprises," or any other variation thereof are intended to cover a non-exclusive inclusion such that a process, method, article or apparatus including a list of elements includes not only those elements but also others not expressly listed elements, or elements inherent to such process, method, article or equipment. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or apparatus that includes the stated element.

The above descriptions are only preferred embodiments of the present application and do not limit the present application in any form. Although the present application has disclosed the preferred embodiments as above, this is not intended to limit the present application. Any person familiar with the art can make many possible changes and modifications to the technical solution of the present application by using the methods and technical content disclosed above, or modify it to equivalent changes without departing from the scope of the technical solution of the present application. Example. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application that do not deviate from the content of the technical solution of the present application still fall within the scope of protection of the technical solution of the present application.

Claims (10)

1. A new energy power network architecture system, characterized in that it includes: a vehicle domain controller, a power system domain controller, a power controller and a new energy controller. The power system domain controller includes a control unit and a computing unit. unit; The power system domain controller and the vehicle domain controller are connected by a first network segment through a switch, and the control unit and the computing unit are connected by a second network segment and a third network segment through a switch. The unit is connected to the power controller, the new energy controller and the vehicle domain controller through a fourth network segment, and the computing unit is connected to the new energy controller and the control unit through a fifth network segment. connect; The first network segment, the second network segment and the third network segment are Ethernet network segments, and the fourth network segment and the fifth network segment are CAN FD network segments. 2. The new energy power network architecture system according to claim 1, wherein the power controller includes a safety drive-related power controller and a safety drive-irrelevant power controller, and the new energy controller includes a motor controller. and high voltage battery controller. 3. A method for handling network segment faults, characterized in that it is applied to the new energy power network architecture system of claim 2, including: When a fault occurs in the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power network architecture system, through the first network segment, the second network segment, the The network segments in the third network segment, the fourth network segment and the fifth network segment except the faulty network segment back up transmission signals to obtain backup transmission signals; Utilizing the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except the faulty network segment to transmit the backup Transmission signal. 4. The method according to claim 3, characterized in that when the first network segment, the second network segment, the third network segment or the fifth network segment fails in the new energy power network architecture system, specifically When the first network segment fails; The transmission signal is transmitted through the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment. The specific steps of backing up and obtaining the backup transmission signal include: backing up the transmission signal of the vehicle domain controller, the transmission signal of the safety drive-related power controller and the transmission signal of the new energy controller through the fourth network segment to obtain the backup transmission signal of the vehicle domain controller. , backup safety drive-related power controller transmission signals and backup new energy controller transmission signals; Said utilizing the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment to transmit the data. The backup transmission signal is specifically: the vehicle domain controller uses the fourth network segment to transmit the backup vehicle domain controller transmission signal to the control unit in the power system domain controller; the safety drive-related power controller uses the The fourth network segment directly transmits the transmission signal of the backup safety drive-related power controller to the vehicle domain controller; the new energy controller uses the fourth network segment to directly transmit the transmission signal of the backup new energy controller. to the vehicle domain controller. 5. The method according to claim 3, characterized in that when the first network segment, the second network segment, the third network segment or the fifth network segment fails in the new energy power network architecture system, specifically When the second network segment fails; The transmission signal is transmitted through the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment. The specific steps of backing up and obtaining the backup transmission signal include: backing up the transmission signal of the vehicle domain controller, the transmission signal of the safety drive-related power controller and the transmission signal of the new energy controller through the fourth network segment to obtain the backup transmission signal of the vehicle domain controller. , backup safety drive-related power controller transmission signals and backup new energy controller transmission signals; back up the control unit transmission signals through the fifth network segment to obtain the backup control unit transmission signals; Said utilizing the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment to transmit the data. The backup transmission signal is specifically: the vehicle domain controller uses the fourth network segment to transmit the backup vehicle domain controller transmission signal to the control unit in the power system domain controller; the safety drive-related power controller uses the The fourth network segment directly transmits the transmission signal of the backup safety drive-related power controller to the vehicle domain controller; the new energy controller uses the fourth network segment to directly transmit the transmission signal of the backup new energy controller. to the vehicle domain controller; the control unit uses the fifth network segment to directly transmit the transmission signal of the backup control unit to the computing unit. 6. The method according to claim 3, characterized in that when the first network segment, the second network segment, the third network segment or the fifth network segment fails in the new energy power network architecture system, specifically When the third network segment fails; The transmission signal is transmitted through the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment. The backup and obtaining the backup transmission signal specifically includes: backing up the vehicle domain controller transmission signal and the control unit transmission signal through the fifth network segment to obtain the backup vehicle domain controller transmission signal and the backup control unit transmission signal; Said utilizing the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment to transmit the data. The backup transmission signal is specifically: the vehicle domain controller transmits the backup vehicle domain controller transmission signal to the computing unit via the control unit using the fifth network segment; the control unit uses the fifth network segment to transmit the backup signal. The backup control unit transmits signals directly to the computing unit. 7. The method according to claim 3, characterized in that when a failure occurs in the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power network architecture system, When the fifth network segment fails; The transmission signal is transmitted through the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment. The backup and obtaining the backup transmission signal specifically includes: backing up the transmission signal of the new energy controller through the fourth network segment to obtain the backup transmission signal of the new energy controller; Said utilizing the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment to transmit the data. The backup transmission signal is specifically: the new energy controller uses the fourth network segment to transmit the backup new energy controller transmission signal to the control unit. 8. The method of claim 3, further comprising: When a switch in the new energy power network architecture system fails, the vehicle domain controller transmission signal, the safety drive-related power controller transmission signal and the new energy controller transmission signal are backed up through the fourth network segment to obtain backup. The vehicle domain controller transmits signals, backs up safety drive-related power controller transmission signals, and backs up new energy controller transmission signals; the vehicle domain controller transmission signals and control unit transmission signals are backed up through the fifth network segment to obtain backup. The vehicle domain controller transmits signals and the backup control unit transmits signals; The vehicle domain controller uses the fourth network segment to transmit the transmission signal of the backup vehicle domain controller to the control unit in the power system domain controller; the safety drive-related power controller uses the fourth network segment to transmit the The backup safety drive-related power controller transmission signal is directly transmitted to the vehicle domain controller; the new energy controller uses the fourth network segment to directly transmit the backup new energy controller transmission signal to the vehicle domain control The vehicle domain controller uses the fifth network segment to transmit the backup vehicle domain controller transmission signal to the computing unit via the control unit; the control unit uses the fifth network segment to transmit the backup control unit signal Directly transferred to the computing unit. 9. The method of claim 3, further comprising: When it is confirmed that the first network segment, the second network segment, the third network segment or the fifth network segment in the new energy power network architecture system fails, immediately start preparing the first network segment, the second network segment , the network segment switching of the third network segment, the fourth network segment and the fifth network segment except the faulty network segment, the network segment switching time is less than the minimum network segment failure confirmation time. 10. A device for handling network segment faults, characterized in that it is applied to the new energy power network architecture system of claim 2, including: A backup unit configured to provide backup through the first network segment, the second network segment, and the fifth network segment when a failure occurs in the first network segment, the second network segment, the third network segment, or the fifth network segment in the new energy power network architecture system. The network segments among the network segment, the third network segment, the fourth network segment and the fifth network segment except the faulty network segment backup the transmission signal to obtain the backup transmission signal; A transmission unit configured to utilize the network segments among the first network segment, the second network segment, the third network segment, the fourth network segment and the fifth network segment except for the faulty network segment. Segment transmission of the backup transmission signal.