CN114103836A - Multi-domain control vehicle-mounted system and automobile - Google Patents
Multi-domain control vehicle-mounted system and automobile Download PDFInfo
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- CN114103836A CN114103836A CN202010878156.5A CN202010878156A CN114103836A CN 114103836 A CN114103836 A CN 114103836A CN 202010878156 A CN202010878156 A CN 202010878156A CN 114103836 A CN114103836 A CN 114103836A
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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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- 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 region, a rear domain controller arranged in a rear control region, 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 in communication connection with each other; the 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 the multimedia control system, and the multimedia control system generates a corresponding first control signal; and 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 harness, and improves system transmission efficiency 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
As the demand for the driving assistance function of the vehicle and the safety of the vehicle increases, the number of the electronic and electric functions of the vehicle increases, and new controllers, sensors, and actuators are added to implement these increased functions, thereby increasing the length, weight, and cost of the wire harness. Especially for pure electric vehicles, the increase of the vehicle weight can have a great influence on the driving range.
At present, for various functions on an automobile, a network architecture of an on-board controller generally adopted is divided on the basis of functions, that is, a single function is centralized in one controller for control, for example, functions such as a power domain and a body domain are divided. However, related components on the same control domain that implement different functions are generally distributed at various locations on the vehicle, resulting in a messy arrangement of the wire harness connected to the controller and an increase in weight and cost of the wire harness; and each controller needs to collect information data of all relevant components at each position when realizing functions, thereby resulting in low efficiency of realizing functions.
Disclosure of Invention
The embodiment of the invention provides a multi-domain control vehicle-mounted system and an automobile, and aims to solve the problems of disordered wiring harness arrangement and low function realization efficiency.
A multi-domain control vehicle-mounted system is arranged on a vehicle, and the vehicle comprises a plurality of front vehicle body devices positioned in a front control area at the front end of a vehicle body and a plurality of rear vehicle body devices positioned in a rear control area at the 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 on 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 so as 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 in communication connection with each other;
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 and the multimedia control system are in a successful connection state; 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 and the multimedia control system are in a successful connection state;
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 parts in the front control region and the rear control region corresponding to the front domain controller and the rear domain controller, so that in most vehicle models, signals, control and the like of most parts on the vehicle can be acquired only by adopting the front domain controller and the rear domain controller, and the arrangement quantity and the arrangement cost of the domain controllers are reduced. The invention also realizes linkage control through the combination of 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 needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic diagram of a multi-domain control in-vehicle system in accordance with an embodiment of the present invention;
FIG. 2 is another schematic diagram of a multi-domain control in-vehicle system according to an embodiment of the invention.
Wherein, in the figures, the respective reference numerals:
1-a front domain controller; 2-a back-domain controller; 3-a multimedia control system; 11-left front domain controller; 12-right front zone controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In one embodiment, as shown in fig. 1, there is provided a multi-domain control in-vehicle system provided on a vehicle including a plurality of front vehicle body devices located at a front control area of a vehicle body front end and a plurality of rear vehicle body devices located at a rear control area of the vehicle body rear end. The multi-domain control vehicle-mounted system comprises a front domain controller 1 arranged in the front control region, and the front domain controller is connected with the front vehicle body equipment to realize control on the front vehicle body equipment; the rear domain controller 2 is installed in the rear control area, and the rear domain controller 2 is connected with the rear vehicle body equipment to control 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 in communication connection with each other.
The multi-domain control vehicle-mounted system is arranged on a 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 a physical position area of the vehicle; and a front zone controller 1 is configured for the front control zone and a rear zone controller 2 is configured for the rear control zone.
Further, the multi-domain control vehicle-mounted system is also 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 in communication connection with each other, namely the multimedia control system 3 can be arranged in the front control region or the rear control region; optionally, the front domain Controller 1, the rear domain Controller 2, and the multimedia control system 3 are connected in pairs through a Controller Area Network (CAN) Network segment, linkage control is realized through the combination between each domain Controller and the independent multimedia control system 3, and the multimedia control system 3 receives the feedback signal of each domain Controller through multiple CAN Network segments simultaneously, so that when a certain domain Controller has abnormal conditions such as disconnection, the feedback signal CAN be obtained through other online domain controllers; and the feedback signals are received and sent in a broadcasting mode (the feedback signals of the controllers in all domains are directly received from the CAN network segment), the influence of the forwarding time of the gateway is avoided, the real-time performance and the reliability of signal transmission are improved, and 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 a corresponding CAN network segment, 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 connection of the corresponding CAN network segment between any one domain controller (the front domain controller or the rear domain controller 2) and the multimedia system is interrupted, the domain controller and the multimedia control system 3 are represented to be in a connection failure state; otherwise, when the corresponding CAN network segment between the domain controller (the front domain controller or the rear domain controller 2) and the multimedia system is in communication connection, it represents that the domain controller and the multimedia control system 3 are in a successful connection state, and at this time, 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 may 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, so that the difficulty of vehicle layout domain controller is increased, and even some vehicle models cannot be provided with larger domain controllers, the multimedia control system 3 is not integrated in the domain controller, the multimedia control system 3 is separated, software management is easier to implement through the separated multimedia control system 3, and the probability of errors occurring on vehicle software is reduced.
Further, as shown in fig. 2, the front control area is divided into a left control area located at the left front of the vehicle body and a right control area located at the right front of the vehicle body according to a more detailed division of the physical location area of the vehicle. Correspondingly, the front domain controller 1 includes a left front domain controller 11 disposed within the left control area, and a right front domain controller 12 disposed within the right front control area.
In one embodiment, the left front area controller 11 may be disposed at the left a-pillar skirt sheet metal located in the left control area, and the right front area controller 12 may be disposed at the right a-pillar skirt sheet metal located in the right control area. The rear domain controller 2 can be arranged at a left rear wheel packet metal plate of the rear domain control region; the rear 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, and the rear 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 CAN network segments.
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 equipment and rear vehicle body equipment in a front control domain and a rear control domain; each domain controller collects feedback signals nearby and controls adjacent components, then the chip of the domain controller carries out operation processing, so that the adjacent components are automatically controlled, and result information after the operation processing can be sent to other domain controllers or the multimedia control system 3, so that when the domain controller cannot realize automatic control due to line drop or other reasons, other domain controllers or the multimedia control system 3 can carry out control, and the function of integrated linkage control is achieved.
Illustratively, in one embodiment, each domain controller function consists essentially of:
left front domain controller 11 functions include, but are not limited to: IKEY (intelligent KEY), instrument control function, main driving seat ventilation heating function, left side lock control function, left side light drive function, the motor control function is prevented pressing from both sides by the left side door window, 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 back radar collection function, back windscreen wiper drive function, suitcase light function, oil pump drive function, the rifle electric lock function that charges, left back indicator lamp function, the mouth pilot lamp control function that charges, a left side mouth control function that charges etc..
The right front domain controller 12 functions include, but are not limited to: gateway function, air conditioning function, vice seat ventilation heating function, automatic anti-dazzle inside rear-view mirror function, windscreen wiper washing function, the motor function is prevented pressing from both sides by the right side door window, right side 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 children lock control function, skylight motor control function, sunshade screen drive control function, right side mouth of charge control function, back lock control function, back defrosting drive control function, back lamp drive control function etc..
The back-domain controller 2 functions include, but are not limited to: EPB (Electrical Park Brake) function, and the like.
In another embodiment, each domain controller function may be essentially comprised of:
left front domain controller 11 functions include, but are not limited to: IKEY, instrument control function, main driving seat ventilation heating function, left side lock control function, left side light drive function, the motor control function is prevented pressing from both sides by the left side door window, left side door lamp control function, left side outside rear-view mirror control function, left side window motor control function, left side atmosphere lamp function, preceding radar acquisition function, back windscreen wiper drive function, tubular column regulatory function, left side children's lock control function, the hidden door handle control function in left side, main driving seat regulatory function etc..
The right front domain controller 12 functions include, but are not limited to: gateway function, air conditioning function, vice seat ventilation heating function, automatic anti-dazzle inside rear-view mirror function, windscreen wiper washing function, the motor function is prevented pressing from both sides by the right side door window, right side 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, the hidden door handle function in right side, right side atmosphere lamp control function, right side children lock control function, skylight motor control function, sunshade screen drive control function, vice seat regulatory function etc..
The back-domain controller 2 functions include, but are not limited to: the seat back door control system comprises an EPB function, a charging port control function, a back lamp drive control function, a back air conditioner drive control function, a back radar acquisition function, a back oil pump drive control function, a foot kick ECU function, an electric tail door control function, a charging port lamp control function, a back defrosting drive control function, a back row electric seat adjusting function and the like.
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 therefore, for functions not configured in the vehicle, the control units may not be provided on the PCB Board corresponding to the domain controller, for example, in a vehicle model not configured with functions such as rear lamp driving in the rear domain controller 2, a patch corresponding to the rear lamp driving function need not be provided on the PCB Board corresponding to the rear domain controller 2 in the rear control region, thereby avoiding waste of electronic components and saving cost. As can be understood from the above example, each domain controller integrates an integratable ECU (Electronic Control Unit) of a Control region corresponding thereto, and thus the ECU originally provided in the vehicle can be cancelled accordingly. Understandably, the multimedia control system comprises audio-video entertainment equipment, a loudspeaker and other equipment, and meanwhile, for some ECUs (such as an alarm unit, an image display unit and the like) which cannot be integrated in a domain controller, the ECUs are also summarized into the multimedia control system 3, so that the arrangement of scattered independent ECUs on a vehicle is reduced to a great extent, the number of holes or supports for manufacturing the vehicle body can be reduced, the cost for developing or changing the holes is reduced, and the vehicle is lighter.
Exemplarily, when the multimedia control system 3 includes an alarm unit and an image display unit, when any one of the domain controllers detects that an obstacle exists around the vehicle, the obstacle feedback signal is sent to the multimedia control system 3; when the multimedia control system 3 receives the obstacle feedback signal of any one domain controller, the judgment is made, if the judgment result shows that the obstacle is really around the vehicle and the alarm is needed, the distance information between the vehicle and the obstacle is displayed to the user through the image display unit, and the alarm mode of the alarm unit is triggered to give an alarm.
The front domain controller 1 is used for monitoring a first feedback signal in the front control region in real time and sending the first feedback signal to the multimedia control system 3 when the front domain controller 1 is in a successful connection state; the rear domain controller 2 is configured to monitor a second feedback signal in the rear control domain in real time, and send the second feedback signal to the multimedia control system 3 when the rear domain controller 2 is in a connection success state. The multimedia control system 3 is configured to generate a first control signal corresponding to the received first feedback signal according to the received first feedback signal, and generate a second control signal corresponding to the received 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 zone controller 1 when a fault is detected in front of the vehicle, and then the corresponding first control signal may be an alarm signal; the second feedback signal may be a rear failure signal fed back by the rear domain controller 2 when a failure is detected behind 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 the feedback signal in the control area corresponding thereto and is communicatively connected to other domain controllers and the multimedia control system 3.
Specifically, the front domain controller 1 monitors a first feedback signal in the front control region in real time, and sends the first feedback signal to the multimedia control system 3 when the front domain controller 1 is in a successful connection state; 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 equipment of the left side control region located in the left front of the vehicle body and a plurality of right front vehicle body equipment of the right side control region located in the right front of the vehicle body, the left front domain controller 11 is configured to monitor a left side feedback signal of the left front vehicle body equipment; and when the left front domain controller 11 and the multimedia control system 3 are in a successful connection state, sending the left feedback signal to the multimedia control system 3, so that the multimedia control system 3 is used for generating a left control signal corresponding to the received 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 body equipment; and when the right front domain controller 12 is successfully connected 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 back-zone controller 2 is configured to monitor a second feedback signal in the back-zone in real time, and send the second feedback signal to the multimedia control system 3 when the back-zone controller 2 and the multimedia control system 3 are in a successful connection state. The multimedia control system 3 generates a second control signal corresponding to the received second feedback signal.
In one embodiment, the multimedia control system 3 is further configured to:
and monitoring the connection state of the front domain controller 1 and the rear domain controller 2 and the multimedia control system 3.
When the front domain controller 1 or the rear domain controller 2 and the multimedia control system 3 are in a connection failure state, marking the front domain controller 1 or the rear domain controller 2 in the connection failure state as an offline controller, and marking the front domain controller 1 or the rear domain controller 2 in the connection success state as an online controller.
The connection state comprises a connection success state and a connection failure state. The connection failure state refers to a state in which the communication connection between any domain controller and the multimedia control system 3 is interrupted or another abnormal state in which the communication connection cannot be realized occurs. It CAN be understood that, since each domain controller and the multimedia control system 3 have a corresponding CAN network segment, 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 a connection state of the front domain controller 1 and the rear domain controller 2, and when the front domain controller 1 or the rear domain controller 2 is in a connection failure state, that is, when a connection between a CAN network segment corresponding to the front domain controller or a CAN network corresponding to the rear domain controller 2 and a CAN network segment corresponding to the multimedia system is interrupted, mark the front domain controller 1 or the rear domain controller 2 in the connection failure state as an offline controller, and mark the front domain controller 1 or the rear domain controller 2 in the connection success state as an online controller.
Further, the front-zone controller 1 includes a left front-zone controller 11 and a right front-zone controller 12, so when the CAN segment corresponding to the left front-zone controller 11 and/or the CAN segment corresponding to the right front-zone controller 12 are in a dropped state, the left front-zone controller 11 and/or the right front-zone controller 12 in a connection failure state are marked as offline controllers, and the left front-zone controller 11 and/or the right front-zone controller 12 in a connection success state are marked as online controllers.
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 the online controller receives 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 the connection failure state. The feedback signal refers to a signal of each vehicle body equipment in a control area corresponding to each off-line controller, such as a fault signal or a command instructing to execute a function of the vehicle body equipment. Exemplarily, 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; if the off-line controller is a left front domain controller, the corresponding feedback signal is a left feedback signal; assuming that the off-line controller is a right front-zone controller, the corresponding feedback signal is a right feedback signal.
Specifically, after 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, connection failure information of the offline controller is acquired and broadcasted to the online controller, and then a forwarding feedback signal fed back by the online controller is received.
Exemplarily, it is assumed that when the connection of the CAN network segment 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 network segment, but because the CAN network segment between the rear domain controller 2 and the multimedia system is in an online state and the connection of the CAN network segment between the rear domain controller 2 and the front domain controller is successful, when the connection of the CAN network segment between the front domain controller and the multimedia system is interrupted, the connection failure information of the front domain controller is broadcasted to the rear domain controller 2, so that the feedback signal is transmitted to the multimedia control system 3 through the rear domain controller 2, thereby ensuring that the signal CAN still be transmitted when the abnormal condition of the domain controller occurs.
Further, it is assumed that the front domain controller 1 includes a left front domain controller 11 and a right front domain controller 12. When any one or two of the three domain controllers of the left front domain controller 11, the right front domain controller 12 and the rear domain controller 2 are in the connection failure state, the multimedia control system 3 informs the remaining online domain controllers in a broadcast mode to receive feedback signals corresponding to the domain controllers in other connection failure states, and forwards the feedback signals to the multimedia control system 3.
Furthermore, the invention adopts a multi-path 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 obtains feedback signals, forwards the feedback signals or control signals and the like in a broadcasting mode, 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 right front domain controller 12 receiving the vehicle speed signals is assumed to be 100ms, and the period of the gateway forwarding the vehicle speed signals to the multimedia control system 3 needs 50ms, so that the period of the multimedia control system 3 actually receiving the vehicle speed signals is 150 ms; after the multiple CAN network segments are adopted, the right front domain controller 12 broadcasts to the multimedia control system 3, the period of the multimedia control system 3 receiving the vehicle speed signal is 100ms, and the real-time performance of signal receiving and transmitting is improved. And after the left front domain controller 11, the right front domain controller 12 and the rear domain controller 2 are divided, the multimedia control system 3 can be controlled to obtain a feedback signal corresponding to any domain controller without receiving feedback signals returned by all the domain controllers, so that the network load is reduced, and the vehicle operation efficiency and reliability are improved.
In the embodiment, feedback signals of all domain controllers are received through a plurality of CAN network segments simultaneously, so that when a certain domain controller has abnormal conditions such as disconnection and the like, the feedback signals CAN be obtained through other online domain controllers; and receives and transmits feedback signals in a broadcasting mode without being influenced by the forwarding time of the gateway,
in one embodiment, after the multi-domain control vehicle-mounted system is applied to a vehicle, taking a vehicle parking assist system as an example, the following description is provided:
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 auditory signals to a driver so as to improve the driving safety of a vehicle, and the device needs to detect the obstacles through a reversing radar probe.
Illustratively, four probes are arranged at the front protection of the vehicle, and the front protection four probes carry out acquisition control through 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 is moving forward or backward at a low speed, if an obstacle exists in the detection range of the front protection probe, the left front area controller 11 sends the distance detected by the front protection corresponding probe (namely, the left feedback signal in the above embodiment) to the CAN network in the form of a CAN message, similarly, if an obstacle exists in the detection range of the rear protection probe, the rear area controller 2 sends the distance detected by the rear protection corresponding probe (namely, the right feedback signal in the above embodiment) to the CAN network in the form of a CAN message, and finally, the multimedia control system 3 receives the obstacle distance CAN information sent by the left front area controller 11 or the rear area controller 2, performs corresponding logical judgment processing on the obstacle distance CAN information, and drives the display screen to display, and drives the loudspeaker to perform alarm prompting.
In the prior art, the parking assist system generally adopts an independent controller, collects information of all probes and then uniformly sends the information to a gateway, and a multimedia control system 3 or an instrument decides whether to alarm or display the collected information. The mode has the defects that the vehicle needs to be wound front and back, and more wires are wasted. The parking auxiliary system avoids complicated wiring of wire harnesses, achieves partitioned distribution control and acquisition of probe information, and further achieves linkage control with the multimedia control system 3.
In another embodiment, after the multi-domain control vehicle-mounted system is applied to a vehicle, taking a vehicle door lock system as an example, the following description is provided:
the door lock system controls the whole vehicle door lock to unlock according to the requirements of the whole vehicle on theft prevention and unlocking, and achieves the functions of theft prevention and unlocking.
Illustratively, the left front domain controller 11 collects left side door locks (left front, left rear) and front hatch lock states and controls left side door lock unlocking and locking functions, and the right front domain controller 12 collects right side door locks (right front, right rear) and controls right side door lock unlocking and locking functions. The back domain controller 2 collects the state of the back door lock and controls the unlocking and locking functions of the back door. Further, when a user unlocks the vehicle through 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 to receive unlocking requirements of all door locks of the vehicle, after unified operation processing (delaying for a certain time), the left door lock is controlled to be unlocked, meanwhile, an unlocking message is sent to the right front domain controller 12 to control the right door lock, and the rear domain controller 2 controls the rear back door to be unlocked; in addition, the three domain controllers send out the door lock states acquired by the three domain controllers in real time, and the door lock states are displayed by the multimedia control system 3 in time or used by other required modules.
In another embodiment, after the multi-domain control vehicle-mounted system is applied to a vehicle, taking an air conditioning system as an example, the following description is provided: the control scheme of the air conditioning system carrying domain controller can be collected and controlled in a regional mode, all parts of a left vehicle body (such as a temperature sensor outside the vehicle of the left vehicle body, a temperature sensor inside the vehicle, an electric compressor and the like) can be collected and controlled through a left front domain controller 11, all parts of a right vehicle body (such as a main driving face blowing channel sensor, a main driving foot blowing channel sensor and the like) can be collected and controlled through a right front domain controller 12, all parts of a rear vehicle body can be collected and controlled through a rear domain controller 2, a main controller is selected according to the number of the parts collected and controlled by the left front domain controller 11, the right front domain controller 12 and the rear domain controller 2, the load condition of the controllers and the like, the final control of the whole system is carried out, and further the control of the whole air conditioning system is achieved.
The multi-domain control vehicle-mounted system has the following beneficial effects: all parts are integrated and controlled in a partitioning mode through a multi-domain controller, and in a common automobile model, signals, control and the like can be acquired for most parts on the automobile only through three domain controllers. And the independent multimedia control system 3 is combined to realize linkage control with each domain controller. The feedback signals are received through the multi-path CAN network segments simultaneously, 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, the influence of the forwarding time of the gateway is avoided, the real-time performance and the reliability of signal transmission are improved, and the network load is reduced.
In one embodiment, an automobile is provided and comprises the multi-domain control vehicle-mounted system.
It will be understood by those of ordinary skill in the art that all or part of the processes of the above embodiments may be implemented by hardware related to computer readable instructions, which may be stored in a non-volatile computer readable storage medium, and when executed, may include the processes of the above embodiments. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile 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), Rambus Direct RAM (RDRAM), Direct Rambus Dynamic RAM (DRDRAM), and Rambus Dynamic RAM (RDRAM).
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of each functional unit or module is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units or modules according to needs, that is, the internal structure of the system is divided into different functional units or modules to perform all or part of the above-mentioned functions.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. The multi-domain control vehicle-mounted system is characterized by being arranged on a vehicle, wherein the vehicle comprises a plurality of front vehicle body devices positioned in a front control area at the front end of a vehicle body and a plurality of rear vehicle body devices positioned in a rear control area at the 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 is connected with the front vehicle body equipment so as 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 so as 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 in communication connection with each other;
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 and the multimedia control system are in a successful connection state; 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 and the multimedia control system are in a successful connection state;
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 multiple-domain control vehicle-mounted system according to claim 1, wherein the front control area comprises a plurality of left front vehicle body equipment located in a left control area at the left front of the vehicle body and a plurality of right front vehicle body equipment located in a right control area at the right front of the vehicle body.
3. The multi-domain control vehicle-mounted system according to claim 2, wherein the front domain controller comprises a left front domain controller and a right front domain controller which are both connected with the multimedia control system; the first feedback signal comprises 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 area controller is arranged in the left control area and is used for monitoring a left feedback signal of the left front vehicle body equipment; the multimedia control system is used for generating a left side control signal corresponding to the received left side feedback signal according to the received left side feedback signal;
the right front area controller is arranged in the right control area and is used for monitoring a right feedback signal of the right front body equipment; and the multimedia control system is used for generating a right side control signal corresponding to the right side feedback signal according to the received right side feedback signal.
4. The multi-domain control vehicle-mounted system according to claim 3, wherein the left front domain controller is arranged at a left A-pillar side wall sheet metal in the left control domain; the right front area controller is arranged on a side wall metal plate of the right A column in the right side control area.
5. The multi-domain control vehicle-mounted system according to claim 1, wherein the rear domain controller is arranged at a left rear wheel packet metal plate located in the rear control domain.
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 acquired from the offline controller after the online controller receives the connection failure information sent by the multimedia control system.
8. The in-vehicle system of claim 1, wherein the multimedia control system is located in the front control area or the rear control area.
9. The multi-domain control vehicle-mounted system according to claim 1, wherein the front domain controller, the rear domain controller and the multimedia control system are connected in pairs through CAN segments.
10. An automobile, characterized by comprising a multi-domain control in-vehicle system according to any one of claims 1 to 9.
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| CN114103836B (en) | 2023-08-08 |
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