CN210634450U - Vehicle light limping control system based on distributed control - Google Patents
Vehicle light limping control system based on distributed control Download PDFInfo
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- CN210634450U CN210634450U CN201921634505.8U CN201921634505U CN210634450U CN 210634450 U CN210634450 U CN 210634450U CN 201921634505 U CN201921634505 U CN 201921634505U CN 210634450 U CN210634450 U CN 210634450U
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Abstract
The utility model provides a vehicle light limping control system based on distributed control, which comprises a vehicle body controller, wherein the vehicle body controller is connected with a vehicle control module; the vehicle body controller is connected with a turn light switch and a position light switch; the vehicle control module is connected with a steering lamp and a position lamp relay; the position lamp switch is connected with the position lamp relay through the time delay relay. When the vehicle turn light breaks down, the vehicle body controller drives the position light relay to replace the turn light and is used for reminding surrounding vehicles or pedestrians. When the turn signal lamp is in failure at night, the vehicle body controller can drive the position lamp output preferentially. Meanwhile, the front fog lamps on the same side are driven to output, so that the illumination range is expanded, and the potential safety hazard problem caused by the fault of the steering lamps when the vehicle drives at a curve is avoided.
Description
Technical Field
The utility model relates to a vehicle safety control technical field, concretely relates to vehicle light lameness control system based on distributed control.
Background
The vehicle turn light and the position light are one of the most main safety devices of the vehicle, and particularly provide certain guarantee for the safety of drivers and pedestrians at night.
The limp home mode of a vehicle is that when a control system or component of the vehicle fails, the associated redundant hardware and software facilities of the vehicle can still ensure its basic functionality, enabling the vehicle to operate at the minimum required performance level. The safe driving of the vehicle is ensured. In lameness control, researchers at home and abroad have many control methods and strategies. Broadly speaking, each fault type has its corresponding limp home mode. The control flow is classified, and the limp home mode mainly comprises a limp home mode in which an input signal fails, a limp home mode in which an Electronic Control Unit (ECU) fails and a limp home mode in which an actuator fails. In an electronic control system of an automobile, an actuator is a main device for determining the running safety of the automobile, and when the actuator fails, certain influence is often caused on the running of the automobile. Limp home control of actuator failure is especially important.
Disclosure of Invention
To among the automotive electronics control system, the executor is the main device of decision vehicle safety of traveling, when the executor breaks down, often can cause the problem of certain influence to traveling of car, the utility model provides a vehicle light lameness control system based on distributed control.
The technical scheme of the utility model is that:
the technical scheme of the invention provides a vehicle light limping control system based on distributed control, which comprises a vehicle body controller, wherein the vehicle body controller is connected with a vehicle control module;
the vehicle body controller is connected with a turn light switch and a position light switch;
the vehicle control module is connected with a steering lamp and a position lamp relay;
the position lamp switch is connected with the position lamp relay through the time delay relay.
Preferably, one path of normally open contact of the position lamp relay is connected with the vehicle control module, and the other path of normally closed contact is connected with the position lamp switch and the time delay relay.
Preferably, the vehicle control module comprises a main control unit, and the main control unit is connected with a communication interface unit, a power driving unit and an external power supply monitoring unit.
Preferably, the vehicle control module comprises a front vehicle control module, a rear vehicle control module and a vehicle trailer module;
the vehicle front control module, the vehicle rear control module and the vehicle trailer module are respectively connected with the vehicle body controller through CAN communication buses. The vehicle control module is connected to the CANCAN communication bus and is used for receiving load work enabling information sent by the vehicle body controller, then driving the load to output according to the received enabling information and feeding back the working state of the load to the vehicle body controller in real time in a CAN message mode.
Preferably, the steering lamp comprises a main front steering lamp, a main rear steering lamp and a trailer steering lamp;
the vehicle body controller is connected with a front steering lamp of the main vehicle through a front vehicle control module;
the vehicle body controller is connected with a main vehicle rear steering lamp through a vehicle rear control module;
the body controller is connected with a trailer steering lamp through a vehicle trailer module.
Preferably, the position lamp relay comprises a main vehicle front position lamp relay, a main vehicle rear position lamp relay and a trailer position lamp relay;
the vehicle body controller is connected with a main vehicle front position lamp relay through a vehicle front control module;
the vehicle body controller is connected with a main vehicle rear position lamp relay through a vehicle rear control module;
the vehicle body controller is connected with the trailer position lamp relay through the vehicle trailer module.
Preferably, the position lamp relay is a single-pole double-throw relay.
Preferably, the position light switch is connected to the position light relay via a delay relay and a fuse in this order.
Preferably, the system further comprises a power supply module, wherein the power supply module is used for supplying power to each module of the system.
And the vehicle body controller receives switch input signals of the steering lamp and the position lamp and judges whether the light is lightened or not according to the switch input information. The vehicle body controller sends the work enabling information of the steering lamp and the position lamp to the vehicle front control module, the vehicle rear control module and the trailer module. And the vehicle front control module, the vehicle rear control module and the trailer module can drive the turn light or the position light relay to output after receiving the information. The front control module of the vehicle, the rear control module of the vehicle and the trailer module can also feed back the working states of the steering lamp and the position lamp relay in real time. And the vehicle body controller judges whether limping control of the road output is carried out or not according to the working state of the light. If one path of light fails, the vehicle body controller can perform limp control on the function. The serious safety accident of the fault vehicle in the running process is avoided.
The control process comprises the following steps: when the key switch is closed and the turn signal lamp is switched off, the vehicle body controller sends a turn signal lamp work enabling message to the vehicle front control module, the vehicle rear control module and the trailer module, and the vehicle front control module, the vehicle rear control module and the trailer module immediately drive the turn signal lamp to work after receiving the turn signal lamp work enabling message. Meanwhile, the front vehicle control module, the rear vehicle control module and the trailer module can also feed back the working state of the driving output in real time. If the turn signal lamp of one path can not be lighted normally, namely the output of the path has open circuit or short circuit fault, the corresponding control module of the path can send the fault information of the turn signal lamp. And the vehicle body controller determines the fault and then outputs a position lamp relay for driving the road. Under the night mode or when the surrounding environment is darker, the position lamp switch also can be closed, if there is the indicator that turns to all the way that can not normally be lighted, then this way position lamp relay output of automobile body main control unit drive, turn to the priority promptly, and automobile body controller drive is simultaneously exported with the front fog lamp relay of one side, enlarges the illumination scope at night. Until either the turn signal switch or the position signal switch is turned off.
When the key switch is closed and the position lamp switch is closed, the vehicle body controller sends position lamp work enabling information to the vehicle front control module, the vehicle rear control module and the trailer module, and the vehicle front control module, the vehicle rear control module and the trailer module drive the position lamp relay to output after receiving the work enabling information of the position lamp. When the position lamp switch is just closed and the position lamp relay is not yet attracted, the hardware circuit of the position lamp is switched on, so that the position lamp cannot be lightened by the hardware circuit within the set time threshold of the relay, and the position lamp can be activated by the vehicle front control module, the vehicle rear control module and the trailer module. After the position lamp relay is attracted, the position lamp is lightened, and an external hardware circuit is disconnected. When the vehicle body controller and the vehicle front control module, the vehicle rear control module and the trailer module have communication faults or the relay has open circuit or short circuit faults, the position lamp can be lightened by an external hardware circuit after the set time threshold value is reached.
According to the technical scheme, the utility model has the advantages of it is following: and the modules in the distributed control carry out signal transmission in a CAN communication mode. Compared with the traditional centralized control, the method has the advantages that the number of used wire harnesses is reduced, the quality of the whole vehicle is reduced, the expandability and the stability are higher, and the maintenance of a vehicle body control system is facilitated.
When the vehicle turn light breaks down, the vehicle body controller drives the position light relay to replace the turn light and is used for reminding surrounding vehicles or pedestrians. When the turn signal lamp is in failure at night, the vehicle body controller can drive the position lamp output preferentially. Meanwhile, the front fog lamps on the same side are driven to output, so that the illumination range is expanded, and the potential safety hazard problem caused by the fault of the steering lamps when the vehicle drives at a curve is avoided. When the position lamp relay of the vehicle breaks down, the peripheral hardware circuit of the vehicle can directly drive the position lamp output to a certain extent. The driving accidents caused by the fact that the position lamp is not on at night are reduced. The limp mode of the position lamp is realized by utilizing an external delay circuit, and the position lamp has the advantages of intuition, simplicity in operation and the like.
Furthermore, the utility model relates to a principle is reliable, and simple structure has very extensive application prospect.
Therefore, compared with the prior art, the utility model has the outstanding substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a connection block diagram of the working principle of the present invention.
Fig. 2 is a connection block diagram of the working principle of the present invention.
The system comprises a vehicle body controller, a vehicle control module, a 5-CAN bus, a 7-position lamp switch, a 8-time delay relay, a 9-fuse, a 11-vehicle front control module, a 12-vehicle rear control module, a 13-vehicle trailer module, a 21-vehicle front position lamp relay, a 22-vehicle rear position lamp relay, a 23-trailer position lamp relay, a 41-vehicle front steering lamp, a 42-vehicle rear steering rear and a 43-trailer steering lamp.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in fig. 1 and 2, an embodiment of the invention provides a vehicle light limp control system based on distributed control, which includes a vehicle body controller 1, wherein a vehicle control module 2 is connected to the vehicle body controller 1;
the vehicle body controller 1 is connected with a turn light switch and a position light switch 7;
the vehicle control module 2 is connected with a steering lamp and a position lamp relay; the vehicle control module comprises a vehicle front control module 11, a vehicle rear control module 12 and a vehicle trailer module 13; the vehicle front control module 11, the vehicle rear control module 12 and the vehicle trailer module 13 are respectively connected with the vehicle body controller 1 through the CAN bus 5;
the position light switch 7 is connected with the position light relay through a time delay relay 8. One path of normally open contact of the position lamp relay is connected with the vehicle control module 1, and the other path of normally closed contact is connected with the position lamp switch 7 and the time delay relay 8.
The steering lamps comprise a main front steering lamp 41, a main rear steering lamp 42 and a trailer steering lamp 43; the vehicle body controller 1 is connected with a main vehicle front steering lamp 41 through a vehicle front control module 11; the vehicle body controller 1 is connected with a main vehicle rear steering lamp 42 through a vehicle rear control module 12; the body controller 1 is connected to the trailer indicator 43 via the vehicle trailer module 13.
In this embodiment, it should be noted that the specific structure of the vehicle control module 2 is known in the art, where the vehicle front control module includes a main control unit, and the main control unit is connected with a communication interface unit, a power driving unit, and an external power supply monitoring unit to form a control loop; the communication interface unit is respectively connected with the vehicle body controller and the instrument; the power driving unit is connected with a front steering lamp of the main vehicle; in the embodiment, the main control unit adopts an 8-bit high cost performance single chip microcomputer MC9S08DZ60 of Feichka, and the power driving unit adopts an ST intelligent driving chip VND5T016A with driving current feedback. The structures of the vehicle rear control module, the vehicle trailer module and the vehicle front control module are similar, and are not described in detail herein.
The position lamp relay comprises a main vehicle front position lamp relay 21, a main vehicle rear position lamp relay 22 and a trailer position lamp relay 23; the vehicle body controller 1 is connected with a main vehicle front position lamp relay 21 through a vehicle front control module 11; the vehicle body controller 1 is connected with a main vehicle rear position lamp relay 22 through a vehicle rear control module 12; the body controller 1 is connected to a trailer position light relay 23 via the vehicle trailer module 13.
The position lamp relay is a single-pole double-throw relay.
The position lamp switch 7 is connected with the position lamp relay through a time delay relay 8 and a fuse 9 in sequence.
The system also comprises a power supply module which is used for supplying power to all the modules of the system.
The main functions of the vehicle body controller 1 are to receive input of switching values and analog values, perform logic processing on various information, and send operation enabling information and display information to the vehicle front control module 11, the vehicle rear control module 12, the vehicle trailer module 13 and the meters. The vehicle front control module 11, the vehicle rear control module 12 and the vehicle trailer module 13 are used for driving output according to enable information sent by the vehicle body controller, performing fault diagnosis on the output, and sending real-time working state information of each output pin, including fault information, to the vehicle body controller 1.
When the vehicle key switch is closed and the turn signal switch is closed:
the vehicle body controller 1 receives switch input information of the steering lamp and judges whether the steering lamp is turned on according to control logic; the vehicle body controller 1 sends the turn signal work enabling information to the vehicle front control module 11, the vehicle rear control module 12 and the vehicle trailer module 13; the front vehicle control module 11, the rear vehicle control module 12 and the trailer vehicle module 13 receive the turn signal work enabling information and then drive the turn signal output, and send the work state of the turn signal including the fault state to the body controller 1 according to the output condition of the turn signal. If the turn signal lamp has an open circuit or short circuit fault, the vehicle body controller 1 drives the position lamp on the same side to flicker and output at the frequency of 4 Hz. If the position lamp switch is closed to meet the requirement at the moment, the position lamp relay meets the steering requirement preferentially. Meanwhile, the front fog lamps on the same side are lightened until the position lamp switch or the turn lamp switch is disconnected; and the front fog lamps on the same side are lightened to increase the illumination brightness during night steering.
The present embodiment takes left steering and a front vehicle control module as an example;
when the position light switch is closed:
the hardware connection circuit is provided with a delay relay 8, the time threshold of the delay relay 8 is set to be 3s, and although the relay of the position lamp is not attracted at the beginning, the position lamp in 3s cannot be lightened by the hardware circuit. The body controller 1 receives the input information of the position lamp switch 7 and transmits position lamp operation enable information to the vehicle front control module 11, the vehicle rear control module 12, and the vehicle trailer module 13. The vehicle front control module 11, the vehicle rear control module 12 and the vehicle trailer module 13 receive the position lamp work enabling information, drive the vehicle position lamp relay to be sucked, and feed back the working state of the position lamp relay including the fault state to the vehicle body controller 1 in real time. After the position lamp relay is attracted, the position lamp is lightened, and meanwhile, an external hardware circuit is disconnected. When the position lamp relay has an open circuit or short circuit fault, or the vehicle body controller and the vehicle front control module, the vehicle rear control module and the vehicle trailer module have communication faults, the external circuit can delay to light the position lamp for 3 s.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A vehicle light limping control system based on distributed control is characterized by comprising a vehicle body controller, wherein the vehicle body controller is connected with a vehicle control module;
the vehicle body controller is connected with a turn light switch and a position light switch;
the vehicle control module is connected with a steering lamp and a position lamp relay;
the position lamp switch is connected with the position lamp relay through the time delay relay.
2. The vehicle light limp home control system based on distributed control as claimed in claim 1, wherein one path of normally open contact of the position light relay is connected with the vehicle control module, and one path of normally closed contact is connected with the position light switch and the time delay relay.
3. The vehicle light limp home control system based on distributed control as claimed in claim 2, wherein the vehicle control module comprises a main control unit, and the main control unit is connected with a communication interface unit, a power driving unit and an external power monitoring unit.
4. The vehicle light limp home control system based on distributed control of claim 3, wherein the vehicle control module comprises a vehicle front control module, a vehicle rear control module and a vehicle trailer module;
the vehicle front control module, the vehicle rear control module and the vehicle trailer module are respectively connected with the vehicle body controller through CAN communication buses.
5. The vehicle light lameness control system based on distributed control of claim 4, wherein the turn signal lamps comprise a main front turn signal lamp, a main rear turn signal lamp and a trailer turn signal lamp;
the vehicle body controller is connected with a front steering lamp of the main vehicle through a front vehicle control module;
the vehicle body controller is connected with a main vehicle rear steering lamp through a vehicle rear control module;
the body controller is connected with a trailer steering lamp through a vehicle trailer module.
6. The distributed control-based vehicle light limp home control system as claimed in claim 4, wherein the position light relay comprises a main vehicle front position light relay, a main vehicle rear position light relay, and a trailer position light relay;
the vehicle body controller is connected with a main vehicle front position lamp relay through a vehicle front control module;
the vehicle body controller is connected with a main vehicle rear position lamp relay through a vehicle rear control module;
the vehicle body controller is connected with the trailer position lamp relay through the vehicle trailer module.
7. A distributed control based vehicle light lameness control system as claimed in claim 1 wherein said position light relay is a single pole double throw relay.
8. The vehicle light limp home control system based on distributed control as claimed in claim 1, wherein the position light switch is connected to the position light relay sequentially through a delay relay and a fuse.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921634505.8U CN210634450U (en) | 2019-09-27 | 2019-09-27 | Vehicle light limping control system based on distributed control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921634505.8U CN210634450U (en) | 2019-09-27 | 2019-09-27 | Vehicle light limping control system based on distributed control |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113119861A (en) * | 2021-04-12 | 2021-07-16 | 东风柳州汽车有限公司 | Self-adaptive detection method, device and system for trailer steering lamp |
| CN113156330A (en) * | 2021-04-19 | 2021-07-23 | 东风柳州汽车有限公司 | Automatic detection method, device and system for trailer steering lamp |
| CN115742996A (en) * | 2022-11-16 | 2023-03-07 | 中国重汽集团济南动力有限公司 | Limping control method based on vehicle body control system |
| CN115871548A (en) * | 2022-12-24 | 2023-03-31 | 广州汗马电子科技有限公司 | Method and device for self-adapting to fault of steering lamp |
-
2019
- 2019-09-27 CN CN201921634505.8U patent/CN210634450U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113119861A (en) * | 2021-04-12 | 2021-07-16 | 东风柳州汽车有限公司 | Self-adaptive detection method, device and system for trailer steering lamp |
| CN113119861B (en) * | 2021-04-12 | 2023-03-10 | 东风柳州汽车有限公司 | Adaptive detection method, device and system for trailer steering lamp |
| CN113156330A (en) * | 2021-04-19 | 2021-07-23 | 东风柳州汽车有限公司 | Automatic detection method, device and system for trailer steering lamp |
| CN113156330B (en) * | 2021-04-19 | 2024-05-07 | 东风柳州汽车有限公司 | Automatic detection method, device and system for trailer steering lamp |
| CN115742996A (en) * | 2022-11-16 | 2023-03-07 | 中国重汽集团济南动力有限公司 | Limping control method based on vehicle body control system |
| CN115871548A (en) * | 2022-12-24 | 2023-03-31 | 广州汗马电子科技有限公司 | Method and device for self-adapting to fault of steering lamp |
| CN115871548B (en) * | 2022-12-24 | 2023-08-18 | 广州汗马电子科技有限公司 | Method and device for fault self-adaption of steering lamp |
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