CN114670762B - Vehicle-mounted equipment awakening control method and device and electric automobile - Google Patents
Vehicle-mounted equipment awakening control method and device and electric automobile Download PDFInfo
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- CN114670762B CN114670762B CN202111375781.9A CN202111375781A CN114670762B CN 114670762 B CN114670762 B CN 114670762B CN 202111375781 A CN202111375781 A CN 202111375781A CN 114670762 B CN114670762 B CN 114670762B
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Abstract
The invention provides a vehicle-mounted equipment wake-up control method and device and an electric automobile, and relates to the technical field of electric automobiles. The method is applied to a first main control device in an electric automobile, wherein a plurality of main control devices of the electric automobile are connected to a wake-up control bus, and the method comprises the following steps: the first main control equipment sends a second wake-up signal through the wake-up control bus, wherein the second wake-up signal is used for waking up all the main control equipment connected to the wake-up control bus; receiving a network management message through the wake-up control bus, and determining a target main control device maintaining a wake-up state according to the network management message; the target master device is at least one of the plurality of master devices. According to the technical scheme, the rapid wake-up of the vehicle-mounted equipment is realized through the wake-up control bus, the problem of vehicle response delay caused by 'point-to-point' sequential wake-up under the Ethernet architecture is solved, and the rapid response under certain application scenes is ensured.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a vehicle-mounted equipment wake-up control method and device and an electric automobile.
Background
Along with the continuous evolution of 'electric, networking, intelligent and sharing' of automobiles, vehicle-mounted electric control functions are more and more, and the signal quantity of interaction between main control equipment is continuously increased. At present, the Ethernet is used as a vehicle-mounted communication network of a backbone network, so that the information and data transmission rate between main control equipment is greatly improved.
The Ethernet is connected between the main electric control components in the vehicle-mounted communication network taking the Ethernet as a backbone network in a point-to-point mode. The Ethernet brings fast and efficient transmission and meanwhile brings the difficult problem of sequential wake-up time delay. For example, the vehicle-mounted communication network includes six sequentially connected main control devices (main control 1, main control 2, main control 3, main control 4, main control 5, main control 6) and a vehicle-mounted computer, and the main control 2 and the main control 3 are respectively connected with the vehicle-mounted computer, when the component a (main control 6) receives the external wake-up of the vehicle, the component a (main control 6) needs to quickly wake-up the component B (vehicle-mounted computer) to respond to the wake-up received by the component a (main control 6), and at this time, the component a (main control 6) needs to sequentially wake-up other components (main control 3, main control 4, main control 5 and vehicle-mounted computer) in a point-to-point connection mode of ethernet, and finally transmits the wake-up signal to the component B (vehicle-mounted computer), wherein the starting time of a single electric control component is about 200ms, the total time consumption is 800ms, and the quick response of the wake-up function is affected.
Disclosure of Invention
The embodiment of the invention provides a vehicle-mounted equipment awakening control method and device and an electric automobile, and aims to solve the problem of low awakening response rate in the vehicle-mounted equipment awakening control method in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the embodiment of the invention provides a vehicle-mounted equipment wake-up control method, which is applied to a first main control equipment in an electric automobile, wherein a plurality of main control equipment of the electric automobile are connected to a wake-up control bus, and the method comprises the following steps:
the first main control equipment sends a second wake-up signal through the wake-up control bus, wherein the second wake-up signal is used for waking up all the main control equipment connected to the wake-up control bus;
receiving a network management message through the wake-up control bus, and determining a target main control device maintaining a wake-up state according to the network management message; the target master device is at least one of the plurality of master devices.
Optionally, receiving a network management message through the wake-up control bus, and determining, according to the network management message, a target master control device that maintains a wake-up state, including:
determining the identification information of the target main control equipment maintaining the wake-up state according to the network management message;
determining the types of effective wake-up sources in a plurality of main control devices according to the identification information;
and determining that the target main control equipment maintains the awakening state according to the type of the effective awakening source.
Optionally, at least two frames of messages in the network management message respectively include wake-up indication information and a message identity identifier;
the wake-up indication information is used for indicating the types of effective wake-up sources in the plurality of main control devices.
Optionally, after determining the target master device that maintains the awake state, the method further includes:
waking up a downstream sub-device related to the target main control device according to the network management message;
wherein, the wake-up indication information further includes: and a wake-up source state of a downstream sub-device associated with the target master device.
Optionally, after determining the target master device that maintains the awake state, the method includes:
sending feedback information to the wake-up control bus; the feedback information includes: the wake-up state of the target master device, and the type of the active wake-up source of the target master device.
Optionally, the method further comprises;
acquiring the current state of each main control device;
if the current state of the second master control equipment in each master control equipment is a non-awakening state, and the second master control equipment is determined to be the target master control equipment according to the network management message, controlling the second master control equipment to enter the awakening state; or alternatively, the process may be performed,
and if the current state of the second main control equipment is a normal or abnormal awakening state, and the second main control equipment is determined to be the target main control equipment according to the network management message, determining that the second main control equipment maintains the current state.
The embodiment of the invention also provides a wake-up control method of the vehicle-mounted equipment, which is applied to a second main control equipment in the electric automobile, wherein a plurality of main control equipment of the electric automobile are connected to a wake-up control bus, and the method comprises the following steps:
the second main control equipment acquires a first wake-up signal of a local wake-up source, and determines a first main control equipment which needs to be waken up from a plurality of main control equipment according to the first wake-up signal; the first master control device is at least one of the plurality of master control devices;
sending a second wake-up signal through the wake-up control bus, wherein the second wake-up signal is used for waking up each main control device connected to the wake-up control bus;
sending a network management message through the wake-up control bus, wherein the network management message carries identification information of target main control equipment and is used for indicating the target main control equipment to maintain a wake-up state; the target master device is at least one of the plurality of master devices.
Optionally, determining, according to the first wake-up signal, a first master device that needs to be woken up from the plurality of master devices includes:
determining whether the first main control equipment is effectively awakened according to the first awakening signal;
if the first main control equipment is effectively awakened, a second awakening signal is sent through the awakening control bus, and each main control equipment connected to the awakening control bus is awakened; otherwise, determining that the first master control equipment is in a sleep mode.
The embodiment of the invention also provides a vehicle-mounted equipment wake-up control device which is applied to a first main control equipment in an electric automobile, wherein a plurality of main control equipment of the electric automobile are connected to a wake-up control bus, and the device comprises:
the first processing module is used for the first main control equipment to send a second wake-up signal through the wake-up control bus, and the second wake-up signal is used for waking up all the main control equipment connected to the wake-up control bus;
the second processing module is used for receiving a network management message through the wake-up control bus and determining target main control equipment maintaining a wake-up state according to the network management message; the target master device is at least one of the plurality of master devices.
The embodiment of the invention also provides a vehicle-mounted equipment wake-up control device which is applied to a first main control equipment in an electric automobile, wherein a plurality of main control equipment of the electric automobile are connected to a wake-up control bus, and the device comprises:
the first determining module is used for obtaining a first wake-up signal of a local wake-up source by the second main control equipment and determining a first main control equipment which needs to be waken up from the plurality of main control equipment according to the first wake-up signal; the first master control device is at least one of the plurality of master control devices;
the first sending module is used for sending a second wake-up signal through the wake-up control bus, and the second wake-up signal is used for waking up each main control device connected to the wake-up control bus;
the second sending module is used for sending a network management message through the awakening control bus, wherein the network management message carries identification information of target main control equipment and is used for indicating the target main control equipment to maintain an awakening state; the target master device is at least one of the plurality of master devices.
The embodiment of the invention also provides an electric automobile, which comprises the vehicle-mounted equipment wake-up control device.
The beneficial effects of the invention are as follows:
in the above technical solution, the method is applied to a first master control device in an electric automobile, where a plurality of master control devices of the electric automobile are all connected to a wake-up control bus, and includes: the first main control equipment sends a second wake-up signal through the wake-up control bus, wherein the second wake-up signal is used for waking up all the main control equipment connected to the wake-up control bus; receiving a network management message through the wake-up control bus, and determining a target main control device maintaining a wake-up state according to the network management message; the target master device is at least one of the plurality of master devices. According to the technical scheme, the rapid wake-up of the vehicle-mounted equipment is realized through the wake-up control bus, the problem of vehicle response delay caused by 'point-to-point' sequential wake-up under an Ethernet architecture is solved, and the rapid response under certain application scenes is ensured; and the related control part can identify the effective wake-up state of the current vehicle through the network management message, so that the energy-saving purpose can be achieved.
Drawings
Fig. 1 shows one of flow diagrams of a wake-up control method of a vehicle-mounted device according to an embodiment of the present invention;
fig. 2 is a second schematic flow chart of a wake-up control method of an on-vehicle device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a network management message according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a wake-up control system of a vehicle-mounted device according to an embodiment of the present invention;
fig. 5 shows one of schematic block diagrams of a wake-up control device of an in-vehicle device according to an embodiment of the present invention;
fig. 6 shows a second schematic block diagram of a wake-up control device for a vehicle device according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the invention. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
The invention provides a vehicle-mounted equipment awakening control method and device and an electric automobile, aiming at solving the problem of low awakening response rate in the vehicle-mounted equipment awakening control method in the prior art.
As shown in fig. 1, an embodiment of the present invention provides a wake-up control method for a vehicle-mounted device, which is applied to a first master control device in an electric vehicle, where a plurality of master control devices of the electric vehicle are all connected to a wake-up control bus, and the method includes:
In this embodiment, the first master control device obtains the second wake-up signal on the control bus to satisfy all wake-ups of the master control devices connected to the control bus, it should be understood that the second wake-up signal is sent by the first master control device that has been woken up, where after each master control device is woken up, the wake-up control bus is used to receive the network management message, and the network management message is used to further determine whether to maintain the wake-up state, thereby achieving the effect of saving energy and avoiding energy waste caused by unnecessary wake-ups of the electronic control unit.
Optionally, the step 200 includes:
determining the identification information of the target main control equipment maintaining the wake-up state according to the network management message;
determining the types of effective wake-up sources in a plurality of main control devices according to the identification information;
and determining that the target main control equipment maintains the awakening state according to the type of the effective awakening source.
In this embodiment, according to the network management packet, a wake-up indicator bit in the network management packet may be determined, where the wake-up indicator bit may include a plurality of bit (bit) symbols, each bit symbol represents a kind of valid wake-up source, for example, bit1 represents a target master control unit a, where in the case where bit1 is a preset value of 1, it indicates that the target master control unit a maintains a wake-up state, and otherwise, the target master control device transitions from the wake-up state to the sleep state. The invention can further judge whether to maintain the awakening state and awaken the downstream control component by adding the preset bit value on the network management message, thereby playing the role of energy saving,
it should be noted that, at least two frames of messages in the network management message include wake-up indication information and a message identity identifier (message ID) respectively;
the wake-up indication information is used for indicating the types of effective wake-up sources in the plurality of main control devices.
Specifically, as shown in fig. 3, each network management packet includes: the message ID and the valid wake-up flag may determine the ID of the vehicle device that transmits the second wake-up signal, and whether the target vehicle device that is awakened according to the second wake-up signal continues to remain awake. The valid wake-up flag comprises a plurality of bytes, at least one byte is provided with a plurality of bit symbols, and each bit symbol corresponds to a valid state representing a wake-up source.
Optionally, after the step 200, the method further includes:
waking up a downstream sub-device related to the target main control device according to the network management message;
wherein, the wake-up indication information further includes: and a wake-up source state of a downstream sub-device associated with the target master device.
In this embodiment, after determining the target master control device, according to the network management message, wake-up indication information of a wake-up source state of a downstream sub-device related to the target master control device is determined, and according to the wake-up indication information, the downstream sub-device related to the target master control device is woken up, so that whether to maintain the wake-up state and wake-up a downstream control component can be further determined according to message information on a wake-up mode control bus, thereby achieving an energy saving effect. After the main control equipment is awakened by the message on the awakening mode control bus, judging whether the current awakening is related to the component and the downstream component according to the message ID and the effective awakening mark state, and deciding whether to keep the awakening state.
Optionally, after determining the target master device that maintains the awake state, the method includes:
sending feedback information to the wake-up control bus; the feedback information includes: the wake-up state of the target master device, and the type of the active wake-up source of the target master device.
Here, each main control device is connected in the form of the wake-up control bus, and the rapid on-demand wake-up of each main electric control component is realized by means of broadcasting a wake-up signal; meanwhile, each master control device sends the wake-up source state to the wake-up control bus according to the wake-up source state received by the master control device, so that other non-target master control devices can master the overall state of the vehicle.
Optionally, the method further comprises;
acquiring the current state of each main control device;
if the current state of the second master control equipment in each master control equipment is a non-awakening state, and the second master control equipment is determined to be the target master control equipment according to the network management message, controlling the second master control equipment to enter the awakening state; or alternatively, the process may be performed,
and if the current state of the second main control equipment is a normal or abnormal awakening state, and the second main control equipment is determined to be the target main control equipment according to the network management message, determining that the second main control equipment maintains the current state.
In this embodiment, if the second master control device is in a state of non-wakeup and non-anomaly, and the second master control device is determined to be the target master control device according to the network management message, the second master control device is controlled to enter a wakeup state, so that the purpose of determining a final wakeup state according to an actual network management message is ensured, and the purpose of waking up the master control device according to requirements can be achieved; and if the second main control equipment is in a non-awakening and non-abnormal state, if the second main control equipment is determined to be the target main control equipment according to the network management message, the current state is kept, namely, the normal awakening state is kept to keep the awakening state, if the second main control equipment is in the abnormal awakening state, the second main control equipment is determined to be in the dormant state, and if the second main control equipment is not in the normal awakening state, the second main control equipment is kept to be in the dormant state. The invention realizes the problem of synchronous awakening of each main control device according to the need through the first awakening signal and the second awakening signal.
As shown in fig. 2, the embodiment of the present invention further provides a wake-up control method of a vehicle-mounted device, which is applied to a second master control device in an electric automobile, where a plurality of master control devices of the electric automobile are all connected to a wake-up control bus, and the method includes:
in this embodiment, in an initial state, a vehicle-mounted device of a vehicle is in a full sleep state or a partial sleep state, a second master control device obtains a first wake-up signal of a local wake-up source, and determines, according to the first wake-up signal, a first master control device that needs to be woken up from a plurality of master control devices, where the first master control device is at least one of the plurality of master control devices, and the master control devices include but are not limited to: a main control unit, a vehicle-mounted computer and the like; after the second main control device obtains the first wake-up signal of the local wake-up source, the second main control device needs to respond to the wake-up of the vehicle.
In this embodiment, the steps 300 to 500 are completed before the steps 100 to 200 in the above method, after the first wake-up signal of the local wake-up source is obtained, the first master control device that needs to be woken up in the multiple master control devices is woken up, but the multiple master control devices are not all woken up, and at this time, the components other than the first master control device are in a sleep state, so that it is necessary to send a second wake-up signal to the wake-up control bus, wake up each master control device connected to the wake-up control bus by the second wake-up signal, at this time, send a network management message again, and each woken up master control device can control the network management message on the bus according to the wake-up mode, further determine whether to maintain the wake-up state, or wake up the downstream control component, thereby playing an energy saving effect and avoiding energy waste caused by unnecessary wake-up of the electronic control component.
Specifically, the determining, in step 300, the first master device that needs to be awakened from the plurality of master devices includes:
determining whether the first main control equipment is effectively awakened according to the first awakening signal;
if the first main control equipment is effectively awakened, a second awakening signal is sent through the awakening control bus, and each main control equipment connected to the awakening control bus is awakened; otherwise, determining that the first master control equipment is in a sleep mode.
In this embodiment, if the first wake-up signal is not valid wake-up, no master control unit in the plurality of master control devices is woken up, and if the first master control device is determined to be woken up according to the first wake-up signal, the first master control device sends a second wake-up signal to the wake-up control bus, and the non-woken-up master control device connected to the wake-up control bus is woken up according to the second wake-up signal, so as to fulfill the purpose of all the master control devices connected to the wake-up control bus.
As shown in fig. 5, the embodiment of the present invention further provides a schematic diagram of a wake-up control system for a vehicle-mounted device, and the steps 100 to 500 are explained by the structure of the wake-up control system for a vehicle-mounted device. The vehicle-mounted equipment wake-up control system comprises: the system comprises a plurality of main control devices (namely main control device 1, main control device 2, main control device 3, main control device 4, main control device 5 and main control device 6) which are sequentially connected through Ethernet, and a vehicle-mounted computer, wherein the main control device 2 and the main control device 3 are respectively connected with the vehicle-mounted computer through Ethernet, and each main control device is respectively connected with the vehicle-mounted computer through a wake-up control bus. Each of the master devices may be connected to a plurality of loads through a controller area network.
This network management mechanism may be an open system and corresponding interface standard (Open Systems and their Interfaces for the Electronics in Motor Vehicles, OSEK) network management or an automotive open system architecture (AUTOSAR) network management, or other defined network management. Compared with a point-to-point connection architecture based on Ethernet, the system can enable all the main control devices and the vehicle-mounted computer to wake up synchronously and acquire the current vehicle wake-up mode.
In the initial state, the vehicle is in a full sleep state or a partial sleep state, and 1 or more of the main control equipment 1-6 and the vehicle-mounted computer are newly and effectively awakened, so that the vehicle is required to respond to the new awakening. When receiving the newly-added wake-up master control device X, the wake-up mode network management message is started to be sent on the wake-up control bus, and the data in the network management message define the effective wake-up source type of the vehicle-mounted device. After the message appears on the wake-up control bus, the main control equipment 1-6 and the vehicle-mounted computer except the main control X immediately enter a wake-up state, and after the wake-up, the type of the wake-up source is judged according to the network management message content sent by the main control equipment X, and whether the wake-up state is maintained is correspondingly determined.
After the main control unit and the vehicle-mounted computer are awakened by the network management message on the awakening mode control bus, judging whether the current awakening is related to the component and the downstream component according to the message identity identification number (ID) and the effective awakening mark state in the network management message, and deciding whether to keep the awakening state.
In summary, the method or system provided by the invention shortens the wake-up time length under the 'point-to-point' Ethernet connection architecture in the prior art from 800ms to 200ms, and reduces 75%. In some situations requiring quick response of the vehicle, such as a user unlocking charging gun scene, the adoption of a point-to-point Ethernet connection architecture can cause user unlocking jamming, and the adoption of the wake-up mode control bus can realize non-inductive unlocking of the charging gun.
The method provided by the invention can solve the problem of wake-up delay of the vehicle-mounted architecture based on the Ethernet as the backbone network, and can wake up each main control module quickly; the method provided by the invention can further judge whether to maintain the awakening state and awaken the downstream control component according to the message information on the awakening mode control bus, thereby playing an energy-saving effect and avoiding energy waste caused by unnecessary awakening of the electric control component.
As shown in fig. 4, an embodiment of the present invention further provides a wake-up control device for a vehicle-mounted device, which is applied to a first master control device in an electric automobile, where a plurality of master control devices of the electric automobile are all connected to a wake-up control bus, and the device includes:
the first processing module 10 is configured to send, by the first master device, a second wake-up signal through the wake-up control bus, where the second wake-up signal is used to wake up each master device connected to the wake-up control bus;
the second processing module 20 is configured to receive a network management message through the wake-up control bus, and determine a target master control device that maintains a wake-up state according to the network management message; the target master device is at least one of the plurality of master devices.
Optionally, the second processing module 20 includes:
the first determining unit is used for determining the identification information of the target main control equipment maintaining the awakening state according to the network management message;
the second determining unit is used for determining the types of the effective wake-up sources in the plurality of main control devices according to the identification information;
and the third determining unit is used for determining that the target main control equipment maintains the awakening state according to the type of the effective awakening source.
It should be noted that, at least two frames of messages in the network management message respectively include wake-up indication information and a message identity identifier;
the wake-up indication information is used for indicating the types of effective wake-up sources in the plurality of main control devices.
Optionally, the apparatus further includes:
the wake-up module is used for waking up downstream sub-equipment related to the target main control equipment according to the network management message;
wherein, the wake-up indication information further includes: and a wake-up source state of a downstream sub-device associated with the target master device.
Optionally, the apparatus further includes:
the third processing module is used for sending feedback information to the wake-up control bus; the feedback information includes: the wake-up state of the target master device, and the type of the active wake-up source of the target master device.
Optionally, the apparatus further includes:
the acquisition module is used for acquiring the current state of each main control device;
the fourth processing module is used for controlling the second main control equipment to enter the awakening state if the current state of the second main control equipment in each main control equipment is a non-awakening state and the second main control equipment is determined to be the target main control equipment according to the network management message; or alternatively, the process may be performed,
and the fifth processing module is used for determining that the second main control equipment maintains the current state if the current state of the second main control equipment is a normal or abnormal awakening state and determining that the second main control equipment is the target main control equipment according to the network management message.
As shown in fig. 6, an embodiment of the present invention further provides a wake-up control device for a vehicle-mounted device, which is applied to a first master control device in an electric automobile, where a plurality of master control devices of the electric automobile are all connected to a wake-up control bus, and the device includes:
the first determining module 30 is configured to obtain a first wake-up signal of a local wake-up source by the second master control device, and determine, according to the first wake-up signal, a first master control device that needs to be woken up from the plurality of master control devices; the first master control device is at least one of the plurality of master control devices;
a first sending module 40, configured to send a second wake-up signal through the wake-up control bus, where the second wake-up signal is used to wake up each master control device connected to the wake-up control bus;
the second sending module 50 is configured to send a network management packet through the wake-up control bus, where the network management packet carries identification information of a target master control device, and is used to instruct the target master control device to maintain a wake-up state; the target master device is at least one of the plurality of master devices.
Optionally, the first determining module 30 includes:
a fourth determining unit, configured to determine, according to the first wake-up signal, whether the first master control device is effectively wake-up;
the wake-up unit is used for sending a second wake-up signal through the wake-up control bus if the first main control device is effectively wake-up, and waking up each main control device connected to the wake-up control bus; otherwise, determining that the first master control equipment is in a sleep mode.
The embodiment of the invention also provides an electric automobile, which comprises the vehicle-mounted equipment wake-up control device.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the principles of the present invention, and such modifications and changes are intended to be within the scope of the present invention.
Claims (8)
1. A vehicle-mounted device wake-up control method applied to a first main control device in an electric automobile, wherein a plurality of main control devices of the electric automobile are all connected to a wake-up control bus, the method comprising:
the first main control equipment sends a second wake-up signal through the wake-up control bus, wherein the second wake-up signal is used for waking up all the main control equipment connected to the wake-up control bus;
the first main control equipment determines a first main control equipment which needs to be awakened in the plurality of main control equipment according to a first awakening signal;
the first master control device is at least one of the plurality of master control devices;
receiving a network management message through the wake-up control bus, and determining a target main control device maintaining a wake-up state according to the network management message; the target master control device is at least one of the plurality of master control devices;
receiving a network management message through the wake-up control bus, and determining a target main control device maintaining a wake-up state according to the network management message, wherein the target main control device comprises:
determining the identification information of the target main control equipment maintaining the wake-up state according to the network management message;
determining the types of effective wake-up sources in a plurality of main control devices according to the identification information;
determining that the target main control equipment maintains a wake-up state according to the type of the effective wake-up source;
the method further comprises;
acquiring the current state of each main control device;
if the current state of the second master control equipment in each master control equipment is a non-awakening state, and the second master control equipment is determined to be the target master control equipment according to the network management message, controlling the second master control equipment to enter the awakening state; or alternatively, the process may be performed,
and if the current state of the second main control equipment is a normal or abnormal awakening state, and the second main control equipment is determined to be the target main control equipment according to the network management message, determining that the second main control equipment maintains the current state.
2. The method of claim 1, wherein at least two frames of messages in the network management message respectively include wake-up indication information and a message identity identifier;
the wake-up indication information is used for indicating the types of effective wake-up sources in the plurality of main control devices.
3. The method of claim 1, wherein after determining the target master device that maintains the awake state, the method further comprises:
waking up a downstream sub-device related to the target main control device according to the network management message;
wherein, the wake-up indication information further includes: and a wake-up source state of a downstream sub-device associated with the target master device.
4. The method of claim 1, wherein after determining the target master device that maintains the awake state, the method comprises:
sending feedback information to the wake-up control bus; the feedback information includes: the wake-up state of the target master device, and the type of the active wake-up source of the target master device.
5. A wake-up control method of a vehicle-mounted device, which is applied to a second main control device in an electric automobile, wherein a plurality of main control devices of the electric automobile are all connected to a wake-up control bus, the method comprising:
the second main control equipment acquires a first wake-up signal of a local wake-up source, and determines a first main control equipment which needs to be waken up from a plurality of main control equipment according to the first wake-up signal; the first master control device is at least one of the plurality of master control devices;
sending a second wake-up signal through the wake-up control bus, wherein the second wake-up signal is used for waking up each main control device connected to the wake-up control bus;
sending a network management message through the wake-up control bus, wherein the network management message carries identification information of target main control equipment and is used for indicating the target main control equipment to maintain a wake-up state; the target master control device is at least one of the plurality of master control devices;
according to the first wake-up signal, determining a first master control device to be waken up from a plurality of master control devices, including:
determining whether the first main control equipment is effectively awakened according to the first awakening signal;
if the first main control equipment is effectively awakened, a second awakening signal is sent through the awakening control bus, and each main control equipment connected to the awakening control bus is awakened; otherwise, determining that the first master control equipment is in a sleep mode.
6. An on-vehicle equipment wake-up control device is applied to first master control equipment in electric automobile, characterized in that, a plurality of master control equipment of electric automobile all are connected to wake-up control bus, and the device includes:
the first processing module is used for the first main control equipment to send a second wake-up signal through the wake-up control bus, and the second wake-up signal is used for waking up all the main control equipment connected to the wake-up control bus;
the first main control equipment determines a first main control equipment which needs to be awakened in the plurality of main control equipment according to a first awakening signal;
the first master control device is at least one of the plurality of master control devices;
the second processing module is used for receiving a network management message through the wake-up control bus and determining target main control equipment maintaining a wake-up state according to the network management message; the target master control device is at least one of the plurality of master control devices
The first determining unit is used for determining the identification information of the target main control equipment maintaining the awakening state according to the network management message;
the second determining unit is used for determining the types of the effective wake-up sources in the plurality of main control devices according to the identification information;
a third determining unit, configured to determine, according to the type of the effective wake-up source, that the target master control device maintains a wake-up state;
the apparatus further comprises:
the acquisition module is used for acquiring the current state of each main control device;
the fourth processing module is used for controlling the second main control equipment to enter the awakening state if the current state of the second main control equipment in each main control equipment is a non-awakening state and the second main control equipment is determined to be the target main control equipment according to the network management message; or alternatively, the process may be performed,
and the fifth processing module is used for determining that the second main control equipment maintains the current state if the current state of the second main control equipment is a normal or abnormal awakening state and determining that the second main control equipment is the target main control equipment according to the network management message.
7. An on-vehicle equipment wake-up control device is applied to second master control equipment in electric automobile, characterized in that, a plurality of master control equipment of electric automobile all are connected to wake-up control bus, and the device includes:
the first determining module is used for obtaining a first wake-up signal of a local wake-up source by the second main control equipment and determining a first main control equipment which needs to be waken up from the plurality of main control equipment according to the first wake-up signal; the first master control device is at least one of the plurality of master control devices;
the first sending module is used for sending a second wake-up signal through the wake-up control bus, and the second wake-up signal is used for waking up each main control device connected to the wake-up control bus;
the second sending module is used for sending a network management message through the awakening control bus, wherein the network management message carries identification information of target main control equipment and is used for indicating the target main control equipment to maintain an awakening state; the target master control device is at least one of the plurality of master control devices
The first determining module includes:
a fourth determining unit, configured to determine, according to the first wake-up signal, whether the first master control device is effectively wake-up;
the wake-up unit is used for sending a second wake-up signal through the wake-up control bus if the first main control device is effectively wake-up, and waking up each main control device connected to the wake-up control bus; otherwise, determining that the first master control equipment is in a sleep mode.
8. An electric vehicle characterized by comprising the in-vehicle apparatus wake-up control device as claimed in claim 6 or claim 7.
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