CN114519936B - Traffic light intersection engine start and stop intelligent control method and system based on V2X - Google Patents
Traffic light intersection engine start and stop intelligent control method and system based on V2X Download PDFInfo
- Publication number
- CN114519936B CN114519936B CN202210132706.8A CN202210132706A CN114519936B CN 114519936 B CN114519936 B CN 114519936B CN 202210132706 A CN202210132706 A CN 202210132706A CN 114519936 B CN114519936 B CN 114519936B
- Authority
- CN
- China
- Prior art keywords
- vehicle
- engine
- information
- stop
- traffic light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012545 processing Methods 0.000 claims description 18
- 238000004364 calculation method Methods 0.000 claims description 10
- 238000007781 pre-processing Methods 0.000 claims description 8
- 238000013178 mathematical model Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 6
- 230000006870 function Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000008447 perception Effects 0.000 claims 1
- 239000000295 fuel oil Substances 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18018—Start-stop drive, e.g. in a traffic jam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18154—Approaching an intersection
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention relates to the technical field of automobile engine control, in particular to a traffic light intersection engine start and stop intelligent control method and system based on V2X. The vehicle-mounted unit V2X supporting 5G is used for receiving real-time road environment information sent to a vehicle end by a cloud end, a camera device for shooting images in front of a vehicle and a vehicle-mounted navigation system are used for determining an affiliated lane and an advancing direction, the current congestion degree and the time required by a road junction are judged and calculated out the possible parking time, so that the engine is intelligently controlled to start and stop, unnecessary starting and stopping working conditions can be avoided, vibration of a power system is reduced, part of fuel oil is saved, and more comfortable driving experience is brought.
Description
Technical Field
The invention relates to the technical field of automobile engine control, in particular to a traffic light intersection engine start and stop intelligent control method and system based on V2X.
Background
With the increasing intellectualization of automobile development, the automatic driving function is carried on various automobile types at home and abroad gradually, and the intelligent control function of an automobile engine is also developed. The intelligent engine control based on the vehicle-mounted sensor is early in starting and relatively perfect in development, but the sensing effect of the traditional sensor is greatly influenced by environmental factors, and the high intelligent control function is difficult to realize only by depending on the vehicle-mounted sensor.
The Vehicle-mounted communication system has the advantages that V2X (Vehicle to Vehicle) is communication connection between a Vehicle and a traffic person and between network equipment, 5G/V2X OBU (5G/V2X On Board Unit) is a V2X Vehicle-mounted Unit supporting 5G, development of communication technology is benefited, 5G communication delay is low, high reliability is achieved, and information interaction between the Vehicle and a cloud server can be achieved through the 5G/V2X OBU.
In the traditional automobile engine start-stop control, only water temperature, battery SOC (state of charge), wheel speed and the like are considered, the start-stop conditions of the engine are the self state of the automobile and do not include road environment information, so that a driver enters the start-stop activation working condition unexpectedly; and under some short-time parking operating mode, the electric quantity and the fuel injection quantity required by restarting are already greater than the fuel-saving quantity during the shutdown, and the shaking is brought, so that the driving experience is poor.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the traffic light intersection engine start-stop intelligent control method and system based on the V2X are provided, the vehicle-mounted sensor is matched with the 5G/V2X OBU, the engine can be prevented from being started immediately after starting and stopping in a short time, fuel oil is saved, vehicle vibration is reduced, and good driving experience is brought.
In order to solve the technical problems, the invention adopts the technical scheme that: a traffic light intersection engine start and stop intelligent control method based on V2X comprises the following two steps:
s1, receiving and sensing information, namely determining a current lane and a current advancing direction of a vehicle through a vehicle-mounted camera device and a vehicle-mounted navigation system, and receiving real-time road environment information sent to a vehicle end by a cloud at a traffic light by using a 5G/V2X OBU;
s2, information calculation and engine start-stop control, specifically, judging the current congestion degree and the time required for passing through the intersection according to the lane and advancing direction information and the real-time road environment information, and calculating the expected time of the current stop; if the expected duration is greater than the set threshold, allowing the engine to enter an engine stop mode on the premise that the own vehicle state meets the engine stop condition, otherwise, allowing the engine to continuously work.
Further, the information receiving and sensing specifically includes the following steps:
s101, after receiving a parking request, judging whether a traffic light exists in the distance of 100 meters in front of a vehicle by a vehicle navigation system according to the position of the vehicle, and if so, executing the subsequent step S102; otherwise, the intelligent control of the starting and stopping of the engine is not started, and the step S101 is executed again;
s102, starting the vehicle-mounted camera device to shoot the front of the vehicle;
s103, defining the image in front of the vehicle as a current frame target, and performing image preprocessing and ROI area extraction;
s104, comparing the characteristics of the ROI of the image and determining the current lane and the advancing direction of the vehicle by combining with vehicle-mounted navigation system data;
s105, receiving real-time road environment information sent by a cloud at a traffic light by a 5G/V2X OBU;
and S106, transmitting the received real-time road environment information to the vehicle-mounted controller by the 5G/V2X OBU through the whole vehicle CAN bus.
Further, the information calculation and engine start-stop control specifically include the following steps:
s201, the vehicle-mounted controller receives the real-time road environment information, and calculates the expected time length of the current parking through a mathematical model by combining the current lane and the advancing direction information of the vehicle;
s202, judging whether the expected duration is greater than a set threshold, if so, continuing to execute the step S203, and if not, not allowing the engine to stop;
and S203, judging whether the own vehicle state information meets the engine stop condition, if so, allowing the engine to stop, and if not, not allowing the engine to stop.
Further, the real-time road environment information includes: the time length information and the lighting state of the traffic lights of the current lane, the traffic flow at the current intersection, the traffic flow per second of the current lane and the number of vehicles waiting for the traffic lights of the current lane.
Further, the own vehicle state information includes: including water temperature, battery SOC, and brake pedal state.
Further, the expected parking duration is calculated through a mathematical model, specifically as follows:
the time t required by the driver to start the vehicle satisfies a log-normal distribution:
wherein mu is a function related to the passing traffic flow c of the current lane per second, f (t) is the probability of starting the vehicle at the time t, and sigma is a constant;
the time t required for the driver to start the vehicle is estimated:
estimating the expected parking time T:
wherein, t r The remaining time period of the red light, and m is the number of vehicles ahead.
A traffic light intersection engine start and stop intelligent control system based on V2X comprises a receiving and sensing module and a calculating and controlling module; the receiving and sensing module comprises: the system comprises a vehicle-mounted navigation system 1, a cloud 2, a 5G/V2X OBU3, a vehicle-mounted camera 4, a whole vehicle CAN bus 5 and a vehicle-mounted controller 6 sensing module;
the calculation and control module comprises: the system comprises a vehicle instrument panel 7, an engine control unit 8, a vehicle-mounted sensor 9 and a vehicle-mounted controller 6 processing module;
the cloud end 2 is specifically arranged at a traffic light and used for acquiring real-time road environment information and sending the real-time road environment information to a 5G/V2X OBU of a vehicle end, and the 5G/V2X OBU is arranged on a vehicle and used for receiving the real-time road environment information;
the vehicle-mounted navigation system 1, the 5G/V2X OBU3, the vehicle-mounted camera 4, the vehicle instrument panel 7, the engine control unit 8 and the vehicle-mounted sensor 9 are electrically connected with the vehicle-mounted controller 6 through the whole vehicle CAN bus 5.
Further, the vehicle navigation system 1 is used for identifying the position of the vehicle and the position of a traffic light in front of the vehicle, and sending the position information to a sensing module of the vehicle controller 6;
the vehicle-mounted camera device 4 is used for shooting images in front of the vehicle, preprocessing the images, extracting an ROI (region of interest) region, and sending processed image information to the sensing module of the vehicle-mounted controller 6.
Further, the vehicle-mounted sensor 9 is configured to monitor vehicle state information in real time, and send the state information to the processing module of the vehicle-mounted controller 6, where the state information includes water temperature, battery SOC, and brake pedal state.
Further, the vehicle-mounted controller 6 sensing module is used for preprocessing the received information to determine the current lane and advancing direction of the vehicle, and sending the received information to the vehicle-mounted controller 6 processing module;
the processing module of the vehicle-mounted controller 6 is used for processing the information sent by the sensing module of the vehicle-mounted controller 6 and sending a corresponding control instruction to the vehicle instrument panel 7 and the engine control unit 8 according to the processing result.
Compared with the prior art, the invention has the following main advantages:
1. the method comprises the steps that a V2X vehicle-mounted unit supporting 5G is used for receiving real-time road environment information sent to a vehicle end by a cloud end, a camera device for shooting images in front of a vehicle and a vehicle-mounted navigation system are used for determining an affiliated lane and an advancing direction, the current congestion degree and the time required by a road junction are judged and calculated to obtain possible parking time, so that the start and stop of an engine are intelligently controlled, unnecessary start and stop working conditions can be avoided, the vibration of a power system is reduced, and more comfortable driving experience is brought;
2. through vehicle-mounted sensor, vehicle-mounted camera device, vehicle-mounted controller and 5G V2X OBU cooperate, realize that car end and high in the clouds data combine together, realize the engine jointly and open the intelligent control who stops, make the engine open and stop control more accurate, further optimize the engine and shut down the opportunity, save the fuel, increase storage battery life-span.
Drawings
FIG. 1 is a flow chart of information reception and sensing in a control method according to the present invention;
FIG. 2 is a flow chart of information calculation and engine start-stop control of the control method of the present invention;
FIG. 3 is a driver actuation time lognormal distribution plot in accordance with the present invention;
FIG. 4 is a schematic diagram of a control system according to the present invention.
In the figure: 1. a vehicle-mounted navigation system; 2. a cloud end; 3. 5G/V2X OBU; 4. an onboard camera device; 5. a vehicle CAN bus; 6. a vehicle-mounted controller; 7. a vehicle instrument panel; 8. an engine control unit; 9. a vehicle-mounted sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
1. Traffic light intersection engine start and stop intelligent control method based on V2X
The invention discloses an intelligent control method for starting and stopping an engine at a traffic light intersection based on V2X (Vehicle to Vehicle communication connection between a Vehicle and a traffic person and network equipment), which comprises the following two steps:
s1, receiving and sensing information, specifically, determining a current lane and an advancing direction of a vehicle through a camera device for shooting images in front of the vehicle and a vehicle-mounted navigation system, and receiving real-time road environment information (such as time length information and a light-On state of a current lane traffic light, current intersection traffic flow, traffic flow passing through the current lane per second, vehicle quantity information of the current lane waiting for the traffic light and the like) sent to a vehicle end by a cloud end by utilizing a 5G/V2X OBU (5G/V2X On Board Unit, namely a 5G-supported V2X vehicle-mounted Unit);
s2, information calculation and engine start-stop control, specifically, judging the current congestion degree and the time required for passing through an intersection according to the lane and advancing direction information and the real-time road environment information, and calculating the expected time length of the stop; if the expected duration is greater than the set threshold, the engine is allowed to enter the engine stop mode on the premise that the self-vehicle state meets the engine stop condition, otherwise, the engine continuously works. Avoid unnecessary to open and stop the operating mode, reduce the vibration that comes from driving system and save a part fuel, bring more comfortable driving and experience.
Wherein, the cloud is: equipment and software which are deployed at traffic lights and transmit information to a vehicle end;
the engine Start/Stop System is as follows: when the vehicle is temporarily stopped in the running process, the vehicle can automatically shut down, when the vehicle needs to go forward, the system can automatically restart the engine, and the purpose of saving oil and reducing emission can be achieved by automatically sleeping the engine when the vehicle is temporarily stopped.
Further, as shown in fig. 1, the information receiving and sensing specifically includes the following steps:
s101, after receiving a parking request, judging whether a traffic light exists in the distance of 100 meters in front of a vehicle by a vehicle navigation system according to the position of the vehicle, and if so, executing the subsequent step S102; otherwise, the intelligent control of the engine start and stop is not started, and the step S101 is executed again.
And S102, starting the vehicle-mounted camera device to shoot the front of the vehicle.
S103, defining the vehicle front image as the current frame target, and performing image preprocessing and ROI region extraction (feature region extraction).
And S104, comparing the characteristics of the ROI of the image and determining the current lane and the advancing direction of the vehicle by combining with vehicle-mounted navigation system data.
And S105, receiving real-time road environment information (such as the time length information and the lighting state of the traffic light of the current lane, the traffic flow at the current intersection, the traffic flow per second of the current lane, the number information of vehicles waiting for the traffic light of the current lane and the like) sent by the cloud side of the traffic light by the vehicle-mounted V2X unit supporting 5G.
And S106, the vehicle-mounted V2X unit supporting 5G transmits the received real-time road environment information to a vehicle-mounted controller through a whole vehicle CAN bus, and the information calculation and the engine start-stop control are carried out.
Further, as shown in fig. 2, the information calculation and the engine start-stop control specifically include the following steps:
s201, the vehicle-mounted controller receives the real-time road environment information, and calculates the possible time length (expected time length) of the current parking through a mathematical model by combining the current lane and the advancing direction information of the vehicle.
S202, judging whether the possible time length (expected time length) of the current parking is greater than a set threshold value, if so, continuing to execute the subsequent steps, and simultaneously displaying a prompt of allowing the engine to be stopped on an instrument panel; otherwise, the engine is not allowed to stop, and an engine stop not allowed prompt is displayed on the instrument panel.
S203, judging whether the self-vehicle state (such as conditions of water temperature, battery SOC, brake pedal and the like) meets the engine stop condition, if so, stopping the engine; otherwise, the engine is not stopped.
Further, the mathematical model for calculating the possible parking time is specifically as follows:
as shown in fig. 3, the driver's time required to start the vehicle t (driver start time) satisfies the lognormal distribution:
where μ is a function related to the passing traffic volume c of the current lane per second, f (t) is the probability of the vehicle starting at time t, and σ is a constant.
The driver activation time t is estimated:
estimating the possible parking time T:
wherein, t r The remaining time of the red light, t is the starting time of the driver, and m is the number of the front vehicles.
2. Traffic light intersection engine start-stop intelligent control system based on V2X
Based on the same invention concept, the embodiment of the application also provides a traffic light intersection engine start and stop intelligent control system based on V2X, which comprises a receiving and sensing module and a calculating and controlling module.
Further, the receiving and sensing module is configured to perform steps S101 to S106, and specifically includes: the vehicle-mounted navigation system comprises a vehicle-mounted navigation system 1, a cloud terminal 2,5G/V2X OBU (5G-supported vehicle-mounted V2X unit) 3, a vehicle-mounted camera 4, a whole vehicle CAN bus 5 and a vehicle-mounted controller 6 sensing module.
The vehicle-mounted navigation system 1 is used for identifying the position of the vehicle, judging whether traffic lights exist in the distance of 100 meters in front of the vehicle or not, and sending a judgment result to a sensing module of a vehicle-mounted controller 6;
the cloud end 2 is equipment and matched software thereof which are deployed at a traffic light and used for transmitting information to a vehicle end, is used for acquiring real-time road environment information (such as the time length information and the light-on state of the traffic light of a current lane, the traffic flow at the current intersection, the traffic flow per second of the current lane, the vehicle quantity information of waiting traffic lights of the current lane and the like), and sends the information to a 5G/V2X OBU of the vehicle end;
the 5G/V2X OBU is used for transmitting the received real-time road environment information to a sensing module of a vehicle-mounted controller 6 through a whole vehicle CAN bus 5;
the vehicle-mounted camera device 4 is used for shooting the front of a vehicle, defining an image in front of the vehicle as a current frame target, performing image preprocessing and ROI (region of interest) extraction (feature region extraction), and simultaneously transmitting the processed image and ROI information to a sensing module of a vehicle-mounted controller 6 through a whole vehicle CAN (controller area network) bus 5;
the vehicle-mounted controller 6 sensing module is used for receiving data transmitted by the vehicle-mounted navigation system 1, the cloud end 2, the 5G/V2X OBU and the vehicle-mounted camera 4 and forwarding the data to the vehicle-mounted controller 6 processing module; and meanwhile, the system is used for comparing the characteristics of the ROI of the image and determining the current lane and the advancing direction of the vehicle by combining with the data of the vehicle-mounted navigation system, and sending the information of the current lane and the advancing direction of the vehicle to the processing module of the vehicle-mounted controller 6.
Further, the calculating and controlling module is configured to perform steps S201 to S103, and specifically includes: the system comprises a vehicle instrument panel 7, an engine control unit 8, an on-vehicle sensor 9 and an on-vehicle controller 6.
The vehicle instrument panel 7 is used for receiving an instruction of a processing module of the vehicle-mounted controller 6 and displaying a corresponding prompt;
the engine control unit 8 is used for receiving an instruction of a processing module of the vehicle-mounted controller 6 and correspondingly controlling the starting and stopping of the engine;
the vehicle-mounted sensor 9 is used for monitoring the information of the state (such as water temperature, battery SOC, brake pedal state and other conditions) of the vehicle and sending the information to the processing module of the vehicle-mounted controller 6;
the processing module of the vehicle-mounted controller 6 is used for receiving the real-time road environment information, and calculating the possible time length (expected time length) of the parking through a mathematical model by combining the current lane and the advancing direction information of the vehicle; meanwhile, whether the possible parking time (expected time) is greater than a set threshold and whether the own vehicle state meets the engine stop condition is judged, and a corresponding instruction is sent to a vehicle instrument panel 7 and an engine control unit 8 according to the judgment result.
In summary, the traffic light intersection engine start and stop intelligent control method and system based on V2X of the invention are adopted:
1. the method comprises the steps that a V2X vehicle-mounted unit supporting 5G is used for receiving real-time road environment information sent to a vehicle end by a cloud end, a camera device for shooting images in front of a vehicle and a vehicle-mounted navigation system are used for determining an affiliated lane and an advancing direction, the current congestion degree and the time required by a road junction are judged and calculated to obtain possible parking time, so that the start and stop of an engine are intelligently controlled, unnecessary start and stop working conditions can be avoided, the vibration of a power system is reduced, and more comfortable driving experience is brought;
2. through vehicle-mounted sensor, on-vehicle camera device, on-vehicle controller and 5G V2X OBU cooperate, realize that car end and high in the clouds data combine together, realize the intelligent control that the engine started and stopped jointly, make the engine start and stop control more accurate, further optimize the engine and shut down the opportunity, save the fuel, increase the storage battery life-span.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A traffic light intersection engine start and stop intelligent control method based on V2X is characterized by comprising the following two steps:
s1, receiving and sensing information, namely determining a current lane and a current advancing direction of a vehicle through a vehicle-mounted camera device and a vehicle-mounted navigation system, and receiving real-time road environment information sent to a vehicle end by a cloud end at a traffic light by using a 5G/V2X OBU;
s2, information calculation and engine start-stop control, specifically, judging the current congestion degree and the time required for passing through the intersection according to the lane and advancing direction information and the real-time road environment information, and calculating the expected time of the current stop; if the expected duration is greater than the set threshold, allowing the engine to enter an engine stop mode on the premise that the self-vehicle state meets the engine stop condition, otherwise, continuously operating the engine;
the information calculation and engine start-stop control method specifically comprises the following steps:
s201, the vehicle-mounted controller receives the real-time road environment information, and calculates the expected time length of the current parking through a mathematical model by combining the current lane and the advancing direction information of the vehicle;
s202, judging whether the expected duration is greater than a set threshold, if so, continuing to execute the step S203, and if not, not allowing the engine to stop;
s203, judging whether the self-vehicle state information meets the engine stop condition, if so, allowing the engine to stop, and if not, not allowing the engine to stop;
the expected parking time is calculated through a mathematical model, and the method specifically comprises the following steps:
the time t required by the driver to start the vehicle satisfies a log-normal distribution:
wherein mu is a function related to the passing traffic flow c of the current lane per second, f (t) is the probability of starting the vehicle at the time t, and sigma is a constant;
the time t required for the driver to start the vehicle is estimated:
estimating the expected parking time T:
wherein, t r The remaining time period of the red light, and m is the number of vehicles ahead.
2. The V2X-based traffic light intersection engine start-stop intelligent control method according to claim 1, wherein the information receiving and sensing specifically comprises the following steps:
s101, after receiving a parking request, judging whether a traffic light exists in the distance of 100 meters in front of a vehicle by a vehicle navigation system according to the position of the vehicle, and if so, executing the subsequent step S102; otherwise, the intelligent control of starting and stopping the engine is not started, and the step S101 is executed again;
s102, starting the vehicle-mounted camera device to shoot the front of the vehicle;
s103, defining the image in front of the vehicle as a current frame target, and performing image preprocessing and ROI area extraction;
s104, comparing the characteristics of the ROI of the image and determining a current lane and a current advancing direction of the vehicle by combining vehicle navigation system data;
s105, receiving real-time road environment information sent by a cloud at a traffic light by a 5G/V2X OBU;
and S106, transmitting the received real-time road environment information to the vehicle-mounted controller by the 5G/V2X OBU through the whole vehicle CAN bus.
3. The V2X-based intelligent control method for starting and stopping an engine at a traffic light intersection, according to claim 2, is characterized in that the real-time road environment information comprises: the time length information and the lighting state of the traffic lights of the current lane, the traffic flow at the current intersection, the traffic flow per second of the current lane and the number of vehicles waiting for the traffic lights of the current lane.
4. The intelligent control method for starting and stopping the engine at the traffic light intersection based on the V2X as claimed in claim 1, wherein the own vehicle state information comprises: including water temperature, battery SOC, and brake pedal state.
5. A traffic light crossing engine start-stop intelligent control system based on V2X is used for realizing the steps of the method according to any one of claims 1 to 4, and is characterized by comprising a receiving and sensing module and a calculating and controlling module; the receiving and sensing module comprises: the system comprises a vehicle-mounted navigation system (1), a cloud (2), a 5G/V2X OBU (3), a vehicle-mounted camera device (4), a whole vehicle CAN bus (5) and a vehicle-mounted controller (6) sensing module;
the calculation and control module comprises: the vehicle-mounted control system comprises a vehicle instrument panel (7), an engine control unit (8), a vehicle-mounted sensor (9) and a vehicle-mounted controller (6) processing module;
the cloud (2) is specifically arranged at a traffic light and used for acquiring real-time road environment information and sending the real-time road environment information to a 5G/V2XOBU of a vehicle end, and the 5G/V2XOBU is arranged on a vehicle and used for receiving the real-time road environment information;
the vehicle-mounted navigation system (1), the 5G/V2X OBU (3), the vehicle-mounted camera device (4), the vehicle instrument panel (7), the engine control unit (8) and the vehicle-mounted sensor (9) are electrically connected with the vehicle-mounted controller (6) through the whole vehicle CAN bus (5).
6. The V2X-based traffic light intersection engine start-stop intelligent control system is characterized in that the vehicle-mounted navigation system (1) is used for identifying the position of a vehicle and the position of a traffic light in front of the vehicle and sending the position information to a sensing module of a vehicle-mounted controller (6);
the vehicle-mounted camera device (4) is used for shooting images in front of the vehicle, preprocessing the images, extracting an ROI (region of interest) region, and sending processed image information to a perception module of a vehicle-mounted controller (6).
7. The V2X-based traffic light intersection engine start-stop intelligent control system is characterized in that the vehicle-mounted sensor (9) is used for monitoring vehicle state information in real time and sending the state information to a processing module of a vehicle-mounted controller (6), and the state information comprises water temperature, battery SOC and brake pedal state.
8. The V2X-based traffic light intersection engine start-stop intelligent control system is characterized in that the sensing module of the vehicle-mounted controller (6) is used for preprocessing received information to determine the current lane and advancing direction of a vehicle, and sending the received information to the processing module of the vehicle-mounted controller (6);
the processing module of the vehicle-mounted controller (6) is used for processing the information sent by the sensing module of the vehicle-mounted controller (6) and sending a corresponding control instruction to the vehicle instrument panel (7) and the engine control unit (8) according to a processing result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210132706.8A CN114519936B (en) | 2022-02-14 | 2022-02-14 | Traffic light intersection engine start and stop intelligent control method and system based on V2X |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210132706.8A CN114519936B (en) | 2022-02-14 | 2022-02-14 | Traffic light intersection engine start and stop intelligent control method and system based on V2X |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114519936A CN114519936A (en) | 2022-05-20 |
| CN114519936B true CN114519936B (en) | 2023-01-24 |
Family
ID=81595922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210132706.8A Active CN114519936B (en) | 2022-02-14 | 2022-02-14 | Traffic light intersection engine start and stop intelligent control method and system based on V2X |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114519936B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230677A (en) * | 2022-07-28 | 2022-10-25 | 联合汽车电子有限公司 | Traffic information processing method and device, storage medium, controller and vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476791A (en) * | 2015-08-23 | 2017-03-08 | 郝明学 | The control method of the automatic start-stop system of engine of reference arm lipstick lamp stand-by period |
| CN109973274A (en) * | 2019-03-26 | 2019-07-05 | 重庆长安汽车股份有限公司 | A kind of engine start-up and shut-down control method, apparatus, system and automobile |
| CN110395252A (en) * | 2019-08-06 | 2019-11-01 | 华北理工大学 | A kind of traffic light intersection automatic control vehicle pass-through system and method |
| CN110641469A (en) * | 2019-09-30 | 2020-01-03 | 北京经纬恒润科技有限公司 | Engine start-stop control method and device |
| CN111619542A (en) * | 2020-04-17 | 2020-09-04 | 大连理工大学 | Automatic automobile engine starting and stopping control system and method based on vehicle-road cooperation |
| CN112977390A (en) * | 2021-03-02 | 2021-06-18 | 曾春峰 | Automatic start-stop intelligent control system and method for automobile engine |
| CN113997935A (en) * | 2021-12-31 | 2022-02-01 | 智道网联科技(北京)有限公司 | Control method, device, equipment and product for automatic start and stop of vehicle |
-
2022
- 2022-02-14 CN CN202210132706.8A patent/CN114519936B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476791A (en) * | 2015-08-23 | 2017-03-08 | 郝明学 | The control method of the automatic start-stop system of engine of reference arm lipstick lamp stand-by period |
| CN109973274A (en) * | 2019-03-26 | 2019-07-05 | 重庆长安汽车股份有限公司 | A kind of engine start-up and shut-down control method, apparatus, system and automobile |
| CN110395252A (en) * | 2019-08-06 | 2019-11-01 | 华北理工大学 | A kind of traffic light intersection automatic control vehicle pass-through system and method |
| CN110641469A (en) * | 2019-09-30 | 2020-01-03 | 北京经纬恒润科技有限公司 | Engine start-stop control method and device |
| CN111619542A (en) * | 2020-04-17 | 2020-09-04 | 大连理工大学 | Automatic automobile engine starting and stopping control system and method based on vehicle-road cooperation |
| CN112977390A (en) * | 2021-03-02 | 2021-06-18 | 曾春峰 | Automatic start-stop intelligent control system and method for automobile engine |
| CN113997935A (en) * | 2021-12-31 | 2022-02-01 | 智道网联科技(北京)有限公司 | Control method, device, equipment and product for automatic start and stop of vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114519936A (en) | 2022-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110083109B (en) | Unmanned vehicle remote control system and method thereof | |
| JP7001349B2 (en) | Automatic operation control device | |
| CN111169480B (en) | Power system energy management method, device, equipment and medium | |
| WO2019061631A1 (en) | Smart start-stop method and system | |
| CN113470407B (en) | Vehicle speed guiding method for multi-intersection passing, server and readable storage medium | |
| CN112590784B (en) | Domain control system and method for passenger car | |
| CN109973274A (en) | A kind of engine start-up and shut-down control method, apparatus, system and automobile | |
| CN114519936B (en) | Traffic light intersection engine start and stop intelligent control method and system based on V2X | |
| CN109636946A (en) | A kind of calculation method for log of driving a vehicle | |
| EP4230466A1 (en) | Energy recovery method and apparatus, electric vehicle, and storage medium | |
| US11192550B2 (en) | Method, computer-readable medium, system, and vehicle comprising said system for supporting energy-efficient deceleration of the vehicle | |
| JPH10299531A (en) | Idling stop start system | |
| CN116080652A (en) | Vehicle speed energy-saving control method and device based on vehicle-road fusion perception | |
| CN114937351B (en) | Motorcade control method and device, storage medium, chip, electronic equipment and vehicle | |
| CN108877198B (en) | Intelligent starting method and system for vehicle in cooperation with front vehicle | |
| CN113771854A (en) | Intelligent judgment method and system for automobile start-stop working condition | |
| CN110341719B (en) | Method for controlling a vehicle to regulate energy usage of a sensing system | |
| CN114973695A (en) | Vehicle priority passing control method and related equipment | |
| CN114973697A (en) | Vehicle priority passing control method and related equipment | |
| CN113715828A (en) | Vehicle safety energy-saving control system and method for bumpy road surface | |
| US20240044658A1 (en) | Control apparatus and display apparatus | |
| CN213502264U (en) | Intelligent constant-speed cruise system | |
| CN115649165B (en) | Vehicle starting control method and device, vehicle and storage medium | |
| CN105721750A (en) | Hybrid electric vehicle energy-saving effect improvement device | |
| CN217721541U (en) | Car light protection circuit, car light and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |