CN114103836B - Multi-domain control vehicle-mounted system and automobile - Google Patents
Multi-domain control vehicle-mounted system and automobile Download PDFInfo
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- CN114103836B CN114103836B CN202010878156.5A CN202010878156A CN114103836B CN 114103836 B CN114103836 B CN 114103836B CN 202010878156 A CN202010878156 A CN 202010878156A CN 114103836 B CN114103836 B CN 114103836B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses a multi-domain control vehicle-mounted system and an automobile. The system comprises a front domain controller arranged in a front control area, a rear domain controller arranged in a rear control area, and a multimedia control system arranged between the front domain controller and the rear domain controller; the front domain controller, the rear domain controller and the multimedia control system are connected in a pairwise communication manner; the method comprises the steps that a front domain controller monitors a first feedback signal of front vehicle body equipment in real time, and when the front domain controller is in a successful connection state, the first feedback signal is sent to a multimedia control system, and the multimedia control system generates a corresponding first control signal; the rear domain controller monitors a second feedback signal of the rear vehicle body equipment in real time, and sends the second feedback signal to the multimedia control system when the rear domain controller is in a successful connection state, and the multimedia control system generates a corresponding second control signal. The system has high integration degree, reduces system wiring harnesses and improves the transmission efficiency of the system by combining a multimedia control system.
Description
Technical Field
The invention relates to the field of automobile control, in particular to a multi-domain control vehicle-mounted system and an automobile.
Background
With the increasing demands of people for automobile driving assistance functions and vehicle safety, the electronic and electrical functions on the automobile are increasing, and new controllers, sensors and actuators are added to realize the increasing functions, so that the length, weight and cost of the wire harness are increased. Especially for a pure electric vehicle, the increase of the vehicle weight has a great influence on the driving mileage.
Currently, for various functions of an automobile, a network architecture of a vehicle-mounted controller is generally divided on a function basis, that is, a single function is concentrated in one controller to control, for example, functions of a power domain, a vehicle body domain and the like are divided. However, the related components on the same control domain that perform different functions are typically distributed at various locations on the vehicle, resulting in a messy wiring harness arrangement connected to the controller, and increased weight and cost of the wiring harness; and when each controller realizes the function, information data of all relevant components at each position needs to be collected, so that the function realization efficiency is low.
Disclosure of Invention
The embodiment of the invention provides a multi-domain control vehicle-mounted system and an automobile, which are used for solving the problems of messy wiring harness arrangement and low function realization efficiency.
A multi-domain control in-vehicle system provided on a vehicle including a plurality of front vehicle body devices located in a front control region of a front end of a vehicle body and a plurality of rear vehicle body devices located in a rear control region of a rear end of the vehicle body;
the multi-domain control vehicle-mounted system comprises a front domain controller arranged in the front control area, and the front domain controller is connected with the front vehicle body equipment to realize control of the front vehicle body equipment; the rear domain controller is arranged in the rear control area and is connected with the rear vehicle body equipment to control the rear vehicle body equipment; and a multimedia control system disposed between the front domain controller and the rear domain controller; the front domain controller, the rear domain controller and the multimedia control system are connected in a pairwise communication manner;
the front domain controller is used for monitoring a first feedback signal of the front vehicle body equipment in real time, and sending the first feedback signal to the multimedia control system when the front domain controller is in a successful connection state with the multimedia control system; the rear domain controller is used for monitoring a second feedback signal of the rear vehicle body equipment in real time, and sending the second feedback signal to the multimedia control system when the rear domain controller is in a successful connection state with the multimedia control system;
the multimedia control system is used for generating a first control signal corresponding to the first feedback signal according to the received first feedback signal, and generating a second control signal corresponding to the second feedback signal according to the received second feedback signal.
An automobile comprises the multi-domain control vehicle-mounted system.
According to the multi-domain control vehicle-mounted system and the automobile, the front domain controller and the rear domain controller are integrated in a partitioning mode and control the parts in the front control area and the rear control area corresponding to the front domain controller and the rear domain controller, so that the acquisition signals, the control and the like of most parts on the automobile can be completed only by adopting the front domain controller and the rear domain controller in most automobile types, and the number of the domain controllers and the arrangement cost are reduced. The invention also realizes linkage control through the combination between each domain controller and the independent multimedia control system, and the multimedia control system simultaneously receives the feedback signals of each domain controller through a plurality of CAN network segments, thereby improving the real-time performance and reliability of signal transmission and simultaneously reducing the network load.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a multi-domain control vehicle system according to an embodiment of the present invention;
FIG. 2 is another schematic diagram of a multi-domain control vehicle system in accordance with an embodiment of the present invention.
Wherein, each reference sign in the figure:
1-a prodomain controller; 2-a post-domain controller; 3-a multimedia control system; 11-front left domain controller; 12-right front domain controller.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In one embodiment, as shown in fig. 1, a multi-domain control in-vehicle system is provided that is provided on a vehicle that includes a plurality of front vehicle body devices located in a front control region of a front end of a vehicle body and a plurality of rear vehicle body devices located in a rear control region of a rear end of the vehicle body. The multi-domain control vehicle-mounted system comprises a front domain controller 1 arranged in the front control area, wherein the front domain controller is connected with the front vehicle body equipment so as to realize control of the front vehicle body equipment; a rear domain controller 2 installed in the rear control area, the rear domain controller 2 being connected with the rear vehicle body equipment to realize control of the rear vehicle body equipment; and a multimedia control system 3 disposed between the front domain controller 1 and the rear domain controller 2; the front domain controller 1, the rear domain controller 2 and the multimedia control system 3 are connected in a pairwise communication manner.
The multi-domain control vehicle-mounted system is arranged on the vehicle and is divided into a front control area positioned at the front end of the vehicle body and a rear control area positioned at the rear end of the vehicle body according to the physical position area of the vehicle; and a front domain controller 1 is configured for the front control area and a rear domain controller 2 is configured for the rear control area.
Further, the multi-domain control vehicle-mounted system is provided with a multimedia control system 3 between the front domain controller 1 and the rear domain controller 2, and the front domain controller 1, the rear domain controller 2 and the multimedia control system 3 are connected in a two-by-two communication manner, namely the multimedia control system 3 can be arranged in a front control area or a rear control area; optionally, the front domain controller 1, the rear domain controller 2 and the multimedia control system 3 are connected in pairs through a CAN (Controller Area Network ) network segment, linkage control is realized through combination between each domain controller and the independent multimedia control system 3, and the multimedia control system 3 simultaneously receives feedback signals of each domain controller through a plurality of CAN network segments, so that when abnormal conditions such as disconnection exist in a certain domain controller, feedback signals CAN be obtained through other online domain controllers; and the feedback signals are received and sent in a broadcast mode (the feedback signals of the controllers in each domain are directly received from the CAN network segment), so that the influence of the time of gateway forwarding is avoided, the instantaneity and the reliability of signal transmission are improved, and meanwhile, the network load is reduced. It CAN be understood that the front domain controller, the rear domain controller 2 and the multimedia control system 3 all have corresponding CAN network segments, and then the front domain controller, the rear domain controller 2 and the multimedia control system 3 are connected in pairs through the corresponding CAN network segments, so that when the corresponding CAN network segments between any one domain controller (the front domain controller or the rear domain controller 2) and the multimedia system are disconnected, the domain controller and the multimedia control system 3 are represented to be in a connection failure state; otherwise, when the domain controller (the front domain controller or the rear domain controller 2) is in communication connection with the corresponding CAN network segment of the multimedia system, the domain controller is characterized to be in a successful connection state with the multimedia control system 3, and at the moment, signal transmission CAN be performed through the CAN network segment.
Preferably, the multimedia control system 3 is a DLINK (wireless router) control system, and the multimedia control system 3 can perform alarm processing, image display, and the like. It can be understood that, since the multimedia control system 3 is relatively large, if the control units of all multimedia devices are integrated in the domain controller (the front domain controller 1 or the rear domain controller 2), the volume of the domain controller is directly increased, which results in an increase in difficulty of vehicle layout domain controllers, and even if some vehicle types are unable to arrange larger domain controllers, the multimedia control system 3 is not integrated in the domain controller, the multimedia control system 3 is independent, software management is easier to be implemented through the independent multimedia control system 3, and the probability of errors on vehicle software is reduced.
Further, as shown in fig. 2, the front control region is divided into a left control region located in the left front of the vehicle body and a right control region located in the right front of the vehicle body according to finer vehicle physical position region division. Correspondingly, the front domain controller 1 includes a left front domain controller 11 disposed in the left control region, and a right front domain controller 12 disposed in the right front control region.
In an embodiment, the left front domain controller 11 may be disposed at a left a-pillar side panel located in the left control area, and the right front domain controller 12 may be disposed at a right a-pillar side panel located in the right control area. The rear domain controller 2 can be arranged at the left rear wheel packet sheet metal part of the rear domain control area; the back domain controller 2, the left front domain controller 11, the right front domain controller 12 and the multimedia control system 3 are all connected in pairs, and the back domain controller 2, the left front domain controller 11, the right front domain controller 12 and the multimedia control system 3 are connected in pairs through a CAN network segment.
Preferably, the multi-domain control vehicle-mounted system is arranged on the power vehicle, and different functions are configured for the left front domain controller 11, the right front domain controller 12 and the rear domain controller 2 according to different vehicle types of the power vehicle, and different front vehicle body devices and rear vehicle body devices of a front control area and a rear control area; each domain controller nearby collects feedback signals and controls adjacent components, then carries out operation processing through the chip of the domain controller, thereby automatically controlling the nearby components, and also can send result information after the operation processing to other domain controllers or the multimedia control system 3, so that when the domain controller itself cannot realize automatic control due to disconnection or other reasons, the other domain controllers or the multimedia control system 3 can be controlled, thereby achieving the function of integrated linkage control.
Illustratively, in one embodiment, each domain controller function consists essentially of:
the front left domain controller 11 functions include, but are not limited to, the following: IKEY (intelligent KEY), instrument control function, main seat ventilation heating function, left side door lock control function, left side lamp light drive function, left side door window anti-pinch motor control function, left side door lamp control function, left side outside rear-view mirror control function, left side door window motor control function, left side atmosphere lamp function, front and rear radar acquisition function, rear wiper drive function, suitcase light function, oil pump drive function, rifle electric lock function that charges, left rear turn signal lamp function, charge port pilot lamp control function, left charge port control function etc..
The front right domain controller 12 functions include, but are not limited to, the following: gateway function, air conditioning function, vice seat ventilation heating function, automatic anti-dazzle interior rear-view mirror function, windscreen wiper washing function, right side door window prevent pressing from both sides motor function, right side door lock control function, right side door lamp function, indoor lamp control function, right side outside rear-view mirror control function, right side lamp light drive control function, hidden door handle function, right side atmosphere lamp control function, right side child lock control function, skylight motor control function, sunshade curtain drive control function, right side charge mouth control function, back door lock control function, back defrosting drive control function, back lamp drive control function etc..
The postdomain controller 2 functions include, but are not limited to: EPB (Electrical Park Brake, electronic parking brake system) functions, etc.
In another embodiment, each domain controller function may be a function consisting essentially of:
the front left domain controller 11 functions include, but are not limited to, the following: IKEY, instrument control function, main seat ventilation heating function, left side door lock control function, left side lamp light drive function, left side door window anti-pinch motor control function, left side lamp control function, left side outside rear-view mirror control function, left side door window motor control function, left side atmosphere lamp function, front radar acquisition function, back windscreen wiper drive function, tubular column regulation function, left side child lock control function, left side hidden door handle control function, main seat regulation function etc..
The front right domain controller 12 functions include, but are not limited to, the following: gateway function, air conditioning function, vice seat ventilation heating function, automatic anti-dazzle interior rear-view mirror function, windscreen wiper washing function, right side door window prevent pressing from both sides motor function, right side door lock control function, right side door lamp function, indoor lamp control function, right side outside rear-view mirror control function, right side lamp drive control function, right side hidden door handle function, right side atmosphere lamp control function, right side child lock control function, skylight motor control function, sunshade curtain drive control function, vice seat regulatory function etc..
The postdomain controller 2 functions include, but are not limited to: EPB function, charging port control function, back lamp drive control function, back air conditioner drive control function, back radar acquisition function, back oil pump drive control function, kick ECU function, electric tail gate control function, charging port just lamp control function, back defrosting drive control function, back row electric seat regulation function etc..
Further, in the present invention, the control units of all functions configured in the vehicle may be integrated on a PCB (Printed Circuit Board ) board corresponding to the domain controller, and thus, for functions not configured in the vehicle, may not be provided on a PCB board corresponding to the domain controller, for example, in a vehicle model in which functions such as backlight driving in the rear domain controller 2 are not configured, patches corresponding to the backlight driving functions need not be provided on a PCB board corresponding to the rear domain controller 2 in a rear control region thereof, so that waste of electronic components is avoided, and costs are saved. As can be appreciated from the above examples, each domain controller integrates an integrable ECU (Electronic Control Unit ) of the control region corresponding thereto, so that the ECU originally provided in the vehicle can be correspondingly canceled. It can be appreciated that the multimedia control system includes audio and video entertainment equipment, speakers, etc., and at the same time, some ECUs (such as alarm units, image display units, etc.) that cannot be integrated in the domain controller are also included in the multimedia control system 3, so that the setting of scattered independent ECUs on the vehicle is reduced to a great extent, the number of openings or brackets made on the vehicle body can be reduced, the cost of developing or changing the openings is reduced, and the vehicle is also lighter.
Illustratively, when the multimedia control system 3 includes an alarm unit and an image display unit, when any one of the domain controllers detects that there is an obstacle around the vehicle, the obstacle feedback signal is transmitted to the multimedia control system 3; when the multimedia control system 3 receives the obstacle feedback signal of any domain controller, the obstacle feedback signal is judged, if the judgment result is that the surrounding of the vehicle is truly provided with an obstacle and an alarm is needed, the distance information between the vehicle and the obstacle is displayed to a user through the image display unit, and an alarm mode of the alarm unit is triggered to alarm.
The domain controller 1 is configured to monitor a first feedback signal in the domain controller area in real time, and send the first feedback signal to the multimedia control system 3 when the domain controller 1 is in a successful connection state; the post-domain controller 2 is configured to monitor a second feedback signal in the post-control area in real time, and send the second feedback signal to the multimedia control system 3 when the post-domain controller 2 is in a successful connection state. The multimedia control system 3 is configured to generate a first control signal corresponding to the first feedback signal according to the received first feedback signal, and generate a second control signal corresponding to the second feedback signal according to the received second feedback signal.
For example, the first feedback signal may be a front fault signal fed back by the front domain controller 1 when a fault in front of the vehicle is detected, and the corresponding first control signal may be an alarm signal; the second feedback signal may be a rear fault signal fed back by the rear domain controller 2 when a fault is detected in the rear of the vehicle, and the corresponding second control signal may also be an alarm signal. The connection success state refers to a state in which each domain controller can monitor a feedback signal in a control area corresponding thereto and is communicatively connected with other domain controllers and the multimedia control system 3.
Specifically, the front domain controller 1 monitors the first feedback signal in the front control area in real time, and when the front domain controller 1 is in a successful connection state, sends the first feedback signal to the multimedia control system 3; the multimedia control system 3 generates a first control signal corresponding to the received first feedback signal.
Further, since the front domain controller 1 includes the left front domain controller 11 and the right front domain controller 12, and the front control region includes a plurality of left front vehicle body devices located in a left control region in front of the vehicle body left and a plurality of right front vehicle body devices located in a right control region in front of the vehicle body right, the left front domain controller 11 is used to monitor left feedback signals of the left front vehicle body devices; and when the left front domain controller 11 is in a successful connection state with the multimedia control system 3, the left feedback signal is sent to the multimedia control system 3, so that the multimedia control system 3 is used for generating a left control signal corresponding to the left feedback signal according to the received left feedback signal. The right front domain controller 12 is used for monitoring a right feedback signal of the right front vehicle body equipment; and when the right front domain controller 12 is in a successful connection state with the multimedia control system 3, the right feedback signal is sent to the multimedia control system 3, so that the multimedia control system 3 is further configured to generate a right control signal corresponding to the received right feedback signal according to the received right feedback signal.
The post-domain controller 2 is configured to monitor the second feedback signal in the post-control area in real time, and send the second feedback signal to the multimedia control system 3 when the post-domain controller 2 is in a successful connection state with the multimedia control system 3. The multimedia control system 3 generates a second control signal corresponding to the received second feedback signal.
In a specific embodiment, the multimedia control system 3 is further configured to:
the connection status of the front domain controller 1 and the rear domain controller 2 with the multimedia control system 3 is monitored.
When the front domain controller 1 or the rear domain controller 2 and the multimedia control system 3 are in a connection failure state, the front domain controller 1 or the rear domain controller 2 in the connection failure state is marked as an offline controller, and the front domain controller 1 or the rear domain controller 2 in the connection success state is marked as an online controller.
The connection state includes a connection success state and a connection failure state. The connection failure state refers to an abnormal state in which the communication connection between any one domain controller and the multimedia control system 3 is interrupted or other communication connection cannot be realized. It CAN be understood that, since each domain controller and the multimedia control system 3 have a CAN network segment corresponding to each domain controller, when the connection between the CAN network segment corresponding to any one domain controller and the CAN network segment corresponding to the multimedia system is interrupted, it CAN be determined that the domain controller and the multimedia control system 3 are in a connection failure state. And when the connection between the CAN network segment corresponding to any domain controller and the CAN network segment corresponding to the multimedia system is successful, the domain controller and the multimedia control system 3 CAN be judged to be in a successful connection state.
Specifically, the multimedia control system 3 may monitor the connection state of the front domain controller 1 and the back domain controller 2, and mark the front domain controller 1 or the back domain controller 2 in the connection failure state as an offline controller and mark the front domain controller 1 or the back domain controller 2 in the connection success state as an online controller when the front domain controller 1 or the back domain controller 2 is in the connection failure state, that is, when the connection between the CAN network segment corresponding to the front domain controller or the CAN network corresponding to the back domain controller 2 and the CAN network segment corresponding to the multimedia system is interrupted.
Further, the front domain controller 1 includes a front left domain controller 11 and a front right domain controller 12, so when the CAN network segment corresponding to the front left domain controller 11 and/or the CAN network segment corresponding to the front right domain controller 12 is in a dropped state, the front left domain controller 11 and/or the front right domain controller 12 in a connection failure is marked as an offline controller, and the front left domain controller 11 and/or the front right domain controller 12 in a connection success state is marked as an online controller.
And acquiring connection failure information of the offline controller, and broadcasting the connection failure information to the online controller which is in communication connection with the offline controller. Receiving a forwarding feedback signal fed back by the online controller; the forwarding feedback signal refers to a feedback signal obtained by the online controller from the offline controller after receiving the connection failure information sent by the multimedia control system 3.
Wherein the connection failure information is used to indicate which domain controller is in a connection failure state. The feedback signal refers to a signal of each vehicle body device in the control area corresponding to each off-line controller, such as a fault signal or an instruction to execute a function of the vehicle body device. For example, assuming that the offline controller is a front-domain controller, the corresponding feedback signal is a first feedback signal; assuming that the off-line controller is a rear domain controller, the corresponding feedback signal is a second feedback signal; assuming that the offline controller is a left front domain controller, the corresponding feedback signal is a left feedback signal; assuming that the offline controller is a right front domain controller, the corresponding feedback signal is a right feedback signal.
Specifically, after the former domain controller 1 or the latter domain controller 2 in the connection failure state is marked as an offline controller and the former domain controller 1 or the latter domain controller 2 in the connection success state is marked as an online controller, connection failure information of the offline controller is acquired, the connection failure information is broadcast to the online controller, and a forwarding feedback signal fed back by the online controller is further received.
For example, if the CAN segment connection between the front domain controller and the multimedia system is interrupted, the feedback signal of the front domain controller cannot be transmitted to the multimedia control system 3 through the CAN segment, but since the CAN segment between the rear domain controller 2 and the multimedia system is in an on-line state and the CAN segment connection between the rear domain controller 2 and the front domain controller is successful, when the CAN segment connection between the front domain controller and the multimedia system is monitored to be interrupted, the connection failure information of the front domain controller is broadcast to the rear domain controller 2 to transmit the feedback signal to the multimedia control system 3 through the rear domain controller 2, thereby ensuring that the signal CAN still be transmitted when the domain controller has an abnormal condition.
Further, it is assumed that the front domain controller 1 includes a left front domain controller 11 and a right front domain controller 12. Then, when any one or both of the three domain controllers, i.e., the front left domain controller 11, the front right domain controller 12, and the rear domain controller 2, are in a connection failure state, the multimedia control system 3 informs the remaining online domain controllers of receiving feedback signals corresponding to the domain controllers in other connection failure states through a broadcast form, and forwards the feedback signals to the multimedia control system 3.
Furthermore, the invention adopts a multi-channel CAN network segment to connect the left front domain controller 11, the right front domain controller 12, the rear domain controller 2 and the multimedia control system 3, directly acquire feedback signals in a broadcast mode, forward the feedback signals or control signals and the like, and CAN reduce the actual receiving deviation value of signal messages. If a common vehicle adopts a gateway to forward the signals, the period of the vehicle speed signal received by the right front domain controller 12 is assumed to be 100ms, and 50ms is required for the gateway to forward the multimedia control system 3, so that the period of the vehicle speed signal actually received by the multimedia control system 3 is 150ms; after the multi-channel CAN network segment is adopted, the right front domain controller 12 broadcasts to the multimedia control system 3, the period of the multimedia control system 3 for receiving the vehicle speed signal is 100ms, and the real-time performance of signal receiving and transmitting is improved. And after being divided into the left front domain controller 11, the right front domain controller 12 and the rear domain controller 2, the multimedia control system 3 can be controlled to acquire feedback signals corresponding to any one domain controller without receiving feedback signals returned by all domain controllers, so that network load is reduced, and vehicle running efficiency and reliability are improved.
In this embodiment, feedback signals of each domain controller are received simultaneously through multiple paths of CAN network segments, so that when abnormal conditions such as disconnection exist in a certain domain controller, feedback signals CAN be obtained through other online domain controllers; and receives and transmits the feedback signal in a broadcast mode, is not influenced by the time forwarded by the gateway,
in a specific embodiment, after the multi-domain control vehicle-mounted system is applied to a vehicle, the following description will be given by taking a vehicle parking assistance system as an example:
the parking auxiliary system is an auxiliary device which can detect obstacles in a monitoring range during low-speed driving or reversing and send visual and/or audible signals to a driver so as to improve the driving safety of the vehicle, and the device needs to detect the obstacles through a reversing radar probe.
Illustratively, four probes are arranged on the front guard of the vehicle, and the four probes are controlled by the left front domain controller 11; four probes are arranged on the rear protection of the vehicle, and the four probes are subjected to acquisition control through the rear domain controller 2.
When the vehicle advances at a low speed or backs, if there is an obstacle in the detection range of the front protection probe, the left front domain controller 11 sends the distance detected by the front protection corresponding probe (i.e. the left feedback signal in the above embodiment) to the CAN network in the form of a CAN message, and similarly, if there is an obstacle in the detection range of the rear protection probe, the rear domain controller 2 sends the distance detected by the rear protection corresponding probe (i.e. the right feedback signal in the above embodiment) to the CAN network in the form of a CAN message, finally, the multimedia control system 3 receives the obstacle distance CAN information sent by the left front domain controller 11 or the rear domain controller 2, and after performing corresponding logic judgment processing on the obstacle distance CAN information, drives the display screen to display, and simultaneously drives the speaker to perform alarm prompt.
The parking auxiliary system in the prior art generally adopts an independent controller, collects information of all probes, then uniformly transmits the information to a gateway, and the multimedia control system 3 or the instrument makes a decision to judge whether to alarm or display the collected information. The disadvantage of this method is that the vehicle needs to be wound back and forth, and the wiring is more and more wasteful. The parking auxiliary system provided by the invention avoids complex wiring of the wire harness, realizes regional distribution control acquisition of probe information, and further realizes linkage control with the multimedia control system 3.
In another embodiment, after the multi-domain control vehicle-mounted system is applied to a vehicle, the following description will be given by taking a vehicle door lock system as an example:
the door lock system controls the door lock of the whole vehicle to unlock according to the anti-theft and unlocking requirements of the whole vehicle, and achieves the anti-theft and unlocking functions.
Illustratively, the left front domain controller 11 collects left door lock (left front, left rear) and front hatch door lock states and controls left door lock unlocking and locking functions, and the right front domain controller 12 collects right door lock (right front, right rear) and controls right door lock unlocking and locking functions. The back domain controller 2 collects the back door lock state and controls the back door unlocking and locking functions. Further, when the user performs unlocking operation on the vehicle in the modes of an electronic key, a bluetooth key, cloud service, a central control lock and the like, the left front domain controller 11 is used as a main control controller, all door lock unlocking requirements of the vehicle are received, the left door lock is controlled to be unlocked after unified operation processing (a certain time is delayed), meanwhile, an unlocking message is sent to the right front domain controller 12 to control the right door lock, and the back domain controller 2 controls the back door to be unlocked; in addition, the three domain controllers send the respective collected door lock states in real time, and the door lock states are timely displayed by the multimedia control system 3 or used by other needed modules.
In another embodiment, after the multi-domain control vehicle-mounted system is applied to a vehicle, the following description will be given by taking an air conditioning system as an example: the control scheme of the air conditioning system carrying domain controller can collect and control in regions, each part of the left vehicle body (such as an external temperature sensor, an internal temperature sensor, an electric compressor and the like of the left vehicle body) can collect and control through a left front domain controller 11, each part of the right vehicle body (such as a main driving blowing face channel sensor, a main driving foot blowing channel sensor and the like) can collect and control through a right front domain controller 12, each part of the rear vehicle body can collect and control through a rear domain controller 2, and a main controller is selected according to the number of parts collected and controlled by the left front domain controller 11, the right front domain controller 12, the rear domain controller 2, the load condition of the controllers and the like, so that the final control of the whole system is performed, and the control of the whole air conditioning system is realized.
The multi-domain control vehicle-mounted system has the following beneficial effects: each part is integrated and controlled in a partitioning way through the multi-domain controller, and in a general automobile model, the signal collection, the control and the like of most parts on the automobile can be realized by adopting three domain controllers. By combining an independent multimedia control system 3, linkage control is realized with each domain controller. The feedback signals are received through the multi-path CAN network segments at the same time, so that when abnormal conditions such as disconnection and the like exist in the domain controller, the feedback signals CAN be obtained through other online domain controllers; and the feedback signals are received and sent in a broadcasting mode, so that the influence of the time of gateway forwarding is avoided, the real-time performance and reliability of signal transmission are improved, and the network load is reduced.
In one embodiment, an automobile is provided that includes the multi-domain control on-board system described above.
Those skilled in the art will appreciate that implementing all or part of the processes of the above embodiments may be accomplished by way of computer readable instructions stored in a non-transitory computer readable storage medium, which when executed, may comprise processes of the above embodiments. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
It will be apparent to those skilled in the art that the above-described functional units or modules are merely illustrated in terms of division for convenience and brevity, and that in practical applications, the above-described functional units or modules may be allocated to different functional units or modules according to needs, i.e., the internal structure of the system may be divided into different functional units or modules to perform all or part of the above-described functions.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (9)
1. A multi-domain control vehicle-mounted system, characterized in that the multi-domain control vehicle-mounted system is provided on a vehicle that includes a plurality of front vehicle body devices located in a front control area of a front end of a vehicle body and a plurality of rear vehicle body devices located in a rear control area of a rear end of the vehicle body;
the multi-domain control vehicle-mounted system comprises: the front domain controller is arranged in the front control area and connected with the front vehicle body equipment to control the front vehicle body equipment; the rear domain controller is arranged in the rear control area and is connected with the rear vehicle body equipment to control the rear vehicle body equipment; and a multimedia control system disposed between the front domain controller and the rear domain controller; the front domain controller, the rear domain controller and the multimedia control system are connected in a pairwise communication manner; the front domain controller, the rear domain controller and the multimedia control system are connected in pairs through a CAN network segment;
the front domain controller is used for monitoring a first feedback signal of the front vehicle body equipment in real time, and sending the first feedback signal to the multimedia control system when the front domain controller is in a successful connection state with the multimedia control system; the rear domain controller is used for monitoring a second feedback signal of the rear vehicle body equipment in real time, and sending the second feedback signal to the multimedia control system when the rear domain controller is in a successful connection state with the multimedia control system; when the front domain controller is in communication connection with the corresponding CAN network segment between the multimedia control systems, the front domain controller is characterized to be in a successful connection state with the multimedia control systems; when the back domain controller is in communication connection with the corresponding CAN network segment between the multimedia systems, the back domain controller is characterized to be in a successful connection state with the multimedia control systems;
the multimedia control system is used for generating a first control signal corresponding to the first feedback signal according to the received first feedback signal, and generating a second control signal corresponding to the second feedback signal according to the received second feedback signal.
2. The multi-domain control vehicle-mounted system of claim 1, wherein the front control zone includes a plurality of left front vehicle body devices located in a left control zone forward left of the vehicle body and a plurality of right front vehicle body devices located in a right control zone forward right of the vehicle body.
3. The multi-domain control vehicle-mounted system of claim 2, wherein the front-domain controller comprises a left front-domain controller and a right front-domain controller both connected to the multimedia control system; the first feedback signal includes a left feedback signal and a right feedback signal; the first control signal comprises a left control signal and a right control signal; the left front domain controller, the right front domain controller, the rear domain controller and the multimedia control system are connected in pairs;
the left front domain controller is arranged in the left control area and is used for monitoring left feedback signals of the left front vehicle body equipment; the multimedia control system is used for generating a left control signal corresponding to the left feedback signal according to the received left feedback signal;
the right front domain controller is arranged in the right control area and is used for monitoring a right feedback signal of the right front vehicle body equipment; the multimedia control system is used for generating a right control signal corresponding to the right feedback signal according to the received right feedback signal.
4. The multi-domain control vehicle-mounted system of claim 3, wherein the front left domain controller is disposed at a left a-pillar side fascia located within the left control area; the right front domain controller is arranged at a right A column side wall metal plate in the right side control area.
5. The multi-domain control vehicle-mounted system of claim 1, wherein the rear domain controller is disposed at a left rear wheel pack sheet metal located in the rear control area.
6. The multi-domain control vehicle-mounted system of claim 1, wherein the multimedia control system is further configured to:
monitoring the connection state of the front domain controller and the rear domain controller with the multimedia control system;
when the front domain controller or the rear domain controller and the multimedia control system are in a connection failure state, marking the front domain controller or the rear domain controller in the connection failure state as an offline controller, and marking the front domain controller or the rear domain controller in the connection success state as an online controller;
and acquiring connection failure information of the offline controller, and broadcasting the connection failure information to the online controller which is in communication connection with the offline controller.
7. The multi-domain control vehicle-mounted system of claim 6, wherein the multimedia control system is further configured to:
receiving a forwarding feedback signal fed back by the online controller; the forwarding feedback signal refers to a feedback signal obtained from the offline controller after the online controller receives the connection failure information sent by the multimedia control system.
8. The multi-domain control vehicle-mounted system of claim 1, wherein the multimedia control system is located in the front control area or the rear control area.
9. An automobile comprising the multi-domain control vehicle-mounted system according to any one of claims 1 to 8.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106549873A (en) * | 2016-12-09 | 2017-03-29 | 北京邮电大学 | Communication means and system between a kind of isomery controller |
| CN107846395A (en) * | 2016-09-20 | 2018-03-27 | 塞尔蒂卡姆公司 | Vehicle-mounted networking |
| CN109541987A (en) * | 2018-10-17 | 2019-03-29 | 同济大学 | A kind of plug and play type intelligent automobile domain controller and method with redundancy structure |
| CN110943957A (en) * | 2018-09-21 | 2020-03-31 | 郑州信大捷安信息技术股份有限公司 | Safety communication system and method for vehicle intranet |
| CN111314420A (en) * | 2020-01-16 | 2020-06-19 | 清华大学深圳国际研究生院 | Flexible vehicle-mounted network system and vehicle for intelligent driving |
-
2020
- 2020-08-27 CN CN202010878156.5A patent/CN114103836B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107846395A (en) * | 2016-09-20 | 2018-03-27 | 塞尔蒂卡姆公司 | Vehicle-mounted networking |
| CN106549873A (en) * | 2016-12-09 | 2017-03-29 | 北京邮电大学 | Communication means and system between a kind of isomery controller |
| CN110943957A (en) * | 2018-09-21 | 2020-03-31 | 郑州信大捷安信息技术股份有限公司 | Safety communication system and method for vehicle intranet |
| CN109541987A (en) * | 2018-10-17 | 2019-03-29 | 同济大学 | A kind of plug and play type intelligent automobile domain controller and method with redundancy structure |
| CN111314420A (en) * | 2020-01-16 | 2020-06-19 | 清华大学深圳国际研究生院 | Flexible vehicle-mounted network system and vehicle for intelligent driving |
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