CN108313056A - A kind of method that automobile maximum travelling speed is arranged in combination road information automatically - Google Patents
A kind of method that automobile maximum travelling speed is arranged in combination road information automatically Download PDFInfo
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- CN108313056A CN108313056A CN201810295851.1A CN201810295851A CN108313056A CN 108313056 A CN108313056 A CN 108313056A CN 201810295851 A CN201810295851 A CN 201810295851A CN 108313056 A CN108313056 A CN 108313056A
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- speed
- automobile
- maximum travelling
- travelling speed
- road
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
Classifications
-
- 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
- B60W30/14—Adaptive cruise control
- B60W30/143—Speed control
- B60W30/146—Speed limiting
-
- 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
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/28—Wheel speed
-
- 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
- B60W2552/00—Input parameters relating to infrastructure
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Traffic Control Systems (AREA)
- Controls For Constant Speed Travelling (AREA)
Abstract
The invention discloses a kind of methods that automobile maximum travelling speed is arranged in combination road information automatically, belong to car speed control field, the method comprising the steps of：The road information, including category of roads, speed limit etc. where current vehicle travel speed and current vehicle are obtained in real time；According to collected road information, the automatic maximum velocity threshold that running car is set；Current vehicle speed and maximum velocity threshold are sent to ECU to be compared, corresponding driving instruction is sent to automobile according to the comparison result of threshold speed.The present invention can obtain the information of running car road in real time, and the maximum speed of running car is arranged automatically, overspeed of vehicle be prevented, to effectively improve traffic safety.
Description
Technical field
The invention belongs to car speed control field, automobile maximum traveling is arranged in specifically a kind of combination road information automatically
The method of speed.
Background technology
The urban road and highway in China have speed limit, the traffic accident caused every year by overspeed of vehicle all to occupy
A big chunk ratio to overspeed of vehicle has specific punishment regulations in traffic law.When driver wants in driving procedure
It carves and pays attention to speed instrument board, prevent overspeed driving car, but driver does not notice the speed-limiting messages of road sometimes,
It is easy to exceed the speed limit in the case that scatterbrained, on the market have much prevents the device of overspeed of vehicle at present, such as has super
The cyberdog of fast early warning, but there is the case where reporting by mistake and failing to report, and also part cyberdog is also forbidden using in the car；Also there is vapour
Vehicle is equipped with constant speed cruising system, needs manual setting cruise speed per hour, drives over the speed limit, operate although can be effectively prevented from
It is cumbersome, easily disperse driver attention, especially in multistage speed limit roadways, even if being equipped with the automobile of constant speed cruising system
It also happens occasionally there is a situation where exceeding the speed limit.
Invention content
The purpose of the present invention is to provide a kind of methods that automobile maximum travelling speed is arranged in combination road information automatically, lead to
It crosses ECU and obtains the real-time speed of current automobile in real time, compared by GPS positioning and category of roads and speed limit database, machine
The mode of vision technique intelligent recognition road speed-limiting messages, the automatic threshold value that automobile maximum travelling speed is arranged are anti-to reach
Only overspeed of vehicle effectively improves the purpose of traffic safety.
Include the following steps：
Step 1, the real-time road information obtained where current vehicle travel speed V and current vehicle, including category of roads,
Speed limit etc..Real-time vehicle velocity V is obtained by vehicle speed sensor, and speed is sent to ECU, is positioned by vehicle GPS and is regarded with machine
Position where the feel current automobile of technical limit spacing and speed-limiting messages, and combining position information reads category of roads and speed-limiting messages number
According to the category of roads in library, speed limit, road speed limit is divided into highway, Class I highway, Class II highway, Class III highway, four
Six grade highway, other speed limiting roads grades.
Step 2, the automobile maximum travelling speed threshold model based on road information is established, automobile maximum travelling speed is calculated
Vm.The expression of other speed limiting roads fails to get real-time road information or its speed-limiting messages is not known in road quality classification setting,
Therefore the maximum travelling speed threshold value of automobile is not provided under other speed limiting road states；And automobile travels on other grade roads
When, according to the threshold value of road speed-limiting messages lab setting automobile maximum travelling speed, it is contemplated that the positioning accuracy and velocity pick-up of GPS
The problems such as device transmission precision, is provided with ± 5% error amount, so threshold parameter is set as：
Vm=road speed limit × (1+5%)；
Step 3, by automobile maximum travelling speed VmIt is sent to ECU to be compared, according to V and VmComparison result, give automobile
Corresponding driving instruction is sent, and reports current transport condition to driver in the form of voice broadcast.According to the ratio of V and Vm
Compared with as a result, ECU gives automobile to send corresponding driving instruction, and current traveling shape is reported to driver in the form of voice broadcast
State, if：
1) current vehicle speed V is more than automobile maximum travelling speed threshold value Vm, then is reported currently by the form of voice broadcast
Vehicle velocity V and maximum travelling speed threshold value Vm force control car deceleration to Vm by adjusting throttle opening；
2) current vehicle speed V is less than automobile maximum travelling speed threshold value Vm, then is reported currently by the form of voice broadcast
Vehicle velocity V and maximum travelling speed threshold value Vm, automobile do not force control car deceleration, but automobile still in the state of normally travel
Maximum raises speed to Vm.
Step 4, current transport condition and road information are persistently obtained, and according to the change of real-time status to the row of automobile
It sails instruction and makes and timely adjust.And the driving instruction of automobile is made according to the change of Real-time Road state and timely being adjusted,
Persistently road information and vehicle speed information are detected after automobile executes the driving instruction that ECU is sent in step 3, if：
1) information of road where automobile changes, then needs again according to the new maximum traveling speed of road information setting
Threshold value Vm is spent, and compared with current vehicle speed V is re-started with newly-installed maximum travelling speed threshold value Vm, repeats step 3；
2) information of road where automobile does not change, then judges that automobile is in the state of normal driving, then continue to hold
Row step 4, the maximum travelling speed threshold value V that step 2 is arrangedmWithout changing.
Beneficial effects of the present invention：
(1) present invention is by obtaining real-time speed and road information, solves the existing wrong report of vehicle electronics dog, fails to report
Problem, data reliability higher are highly practical；
(2) the maximum traveling speed of automobile is arranged in conjunction with road information without manually inputting the speed limit of automobile automatically by the present invention
Degree realizes the automation of automobile speed limit control, and in the road of multistage speed limit, it is multiple to solve vehicle-mounted constant speed cruising system operation
It is miscellaneous so that driver can more focus on；
(3) present invention can be applicable on any automobile, and can play prevents overspeed of vehicle, and reduction is driven over the speed limit to driver
The harm brought improves the purpose of drive safety.
Description of the drawings
Fig. 1 is the algorithm flow schematic diagram of the present invention.
Fig. 2 is the structure composition schematic diagram of the present invention.
Specific implementation mode
As shown in Fig. 1, current vehicle travel speed V is obtained in real time in step 1 with the road where current vehicle to believe
Breath, including category of roads, speed limit etc..Real-time vehicle velocity V is obtained by vehicle speed sensor, and speed is sent to ECU, by vehicle-mounted
GPS positioning and machine vision technique obtain position and speed-limiting messages where current automobile, and combining position information reads road
Grade and the category of roads in speed-limiting messages database, speed limit, highway, Class I highway, two level are divided by road speed limit
Six highway, Class III highway, Class IV highway, other speed limiting roads grades.
The automobile maximum travelling speed threshold model based on road information is established in step 2, calculates automobile maximum traveling
Speed Vm.The expression of other speed limiting roads fails to get real-time road information or its speed limit letter is not known in road quality classification setting
Breath, therefore the maximum travelling speed threshold value of automobile is not provided under other speed limiting road states；And automobile is on other grade roads
When driving, according to the threshold value of road speed-limiting messages lab setting automobile maximum travelling speed, threshold parameter is set as：
Vm=road speed limit × (1+5%)；
As shown in Fig. 2, in step 3 by automobile maximum travelling speed VmIt is sent to ECU to be compared, according to V and Vm's
Comparison result is sent corresponding driving instruction to automobile, and is reported current traveling shape to driver in the form of voice broadcast
State.According to the comparison result of V and Vm, ECU sends corresponding driving instruction to automobile, and to driver in the form of voice broadcast
Current transport condition is reported, if：
1) current vehicle speed V is more than automobile maximum travelling speed threshold value Vm, then is reported currently by the form of voice broadcast
Vehicle velocity V and maximum travelling speed threshold value Vm force control car deceleration to Vm by adjusting throttle opening；
2) current vehicle speed V is less than automobile maximum travelling speed threshold value Vm, then is reported currently by the form of voice broadcast
Vehicle velocity V and maximum travelling speed threshold value Vm, automobile do not force control car deceleration, but automobile still in the state of normally travel
Maximum raises speed to Vm.
Current transport condition and road information are persistently obtained in step 4, and according to the change of real-time status to automobile
Driving instruction make and timely adjusting.And the driving instruction of automobile is made according to the change of Real-time Road state and timely being adjusted
It is whole, persistently road information and vehicle speed information are detected after automobile executes the driving instruction that ECU is sent in step 3,
If：
1) information of road where automobile changes, then needs again according to the new maximum traveling speed of road information setting
Threshold value Vm is spent, and compared with current vehicle speed V is re-started with newly-installed maximum travelling speed threshold value Vm, repeats step 3；
2) information of road where automobile does not change, then judges that automobile is in the state of normal driving, then continue to hold
Row step 4, the maximum travelling speed threshold value V that step 2 is arrangedmWithout changing.
Claims (8)
1. a kind of method that automobile maximum travelling speed is arranged in combination road information automatically, it is characterised in that：
Step 1, current vehicle travel speed V and the road information where current vehicle, including category of roads, speed limit are obtained in real time
Deng；
Step 2, the automobile maximum travelling speed threshold model based on road information is established, automobile maximum travelling speed V is calculatedm；
Step 3, by automobile maximum travelling speed VmIt is sent to ECU to be compared, according to V and VmComparison result, give automobile send
Corresponding driving instruction, and current transport condition is reported to driver in the form of voice broadcast；
Step 4, current transport condition and road information are persistently obtained, and according to the change of Real-time Road state to the row of automobile
It sails instruction and makes and timely adjust.
2. the method that automobile maximum travelling speed is arranged in a kind of combination road information according to claim 1 automatically, special
Sign is that the real-time acquisition current vehicle travel speed V described in step 1, is to obtain real-time vehicle velocity V by vehicle speed sensor,
And speed is sent to ECU.
3. the method that automobile maximum travelling speed is arranged in a kind of combination road information according to claim 1 automatically, special
Sign is that the real-time road information obtained where current vehicle described in step 1 is to position to regard with machine by vehicle GPS
Position where the feel current automobile of technical limit spacing and speed-limiting messages, and combining position information reads category of roads and speed-limiting messages number
According to the category of roads in library, speed limit.
4. the method that automobile maximum travelling speed is arranged in a kind of combination road information according to claim 1 automatically, special
Sign is, the real-time road information obtained where current vehicle described in step 1, by road speed limit be divided into highway,
Six Class I highway, Class II highway, Class III highway, Class IV highway, other speed limiting roads grades.
5. the method that automobile maximum travelling speed is arranged in a kind of combination road information according to claim 1 automatically, special
Sign is that automobile maximum travelling speed threshold model of the foundation described in step 2 based on road information calculates automobile maximum row
Sail speed Vm, the expression of other speed limiting roads fails to get real-time road information or its speed limit is not known in road quality classification setting
Information, therefore the maximum travelling speed threshold value of automobile is not provided under other speed limiting road states；And automobile is in other grade roads
On when driving, according to the threshold value of road speed-limiting messages lab setting automobile maximum travelling speed, it is contemplated that the positioning accuracy and speed of GPS
The problems such as spending sensor transmissions precision is provided with ± 5% error amount, so threshold parameter is set as：
Vm=road speed limit × (1+5%).
6. the method that automobile maximum travelling speed is arranged in a kind of combination road information according to claim 1 automatically, special
Sign is, by automobile maximum travelling speed V described in step 3mIt is sent to ECU to be compared, according to V and VmComparison result, give
Automobile sends corresponding driving instruction, and reports current transport condition to driver in the form of voice broadcast, if：
1) current vehicle speed V is more than automobile maximum travelling speed threshold value Vm, then current vehicle velocity V is reported by the form of voice broadcast
With maximum travelling speed threshold value Vm, and force control car deceleration to Vm；
2) current vehicle speed V is less than automobile maximum travelling speed threshold value Vm, then current vehicle velocity V is reported by the form of voice broadcast
With maximum travelling speed threshold value Vm, automobile do not force control car deceleration, but automobile maximum is carried still in the state of normally travel
Speed is to Vm。
7. the method that automobile maximum travelling speed is arranged in a kind of combination road information according to claim 1 automatically, special
Sign is, by automobile maximum travelling speed V described in step 3mIt is sent to ECU to be compared, according to V and VmComparison result, give
Automobile sends corresponding driving instruction, is more than automobile maximum travelling speed threshold value V in current vehicle speed Vm, force control car deceleration
It is the aperture that air throttle is adjusted by ECU.
8. the method that automobile maximum travelling speed is arranged in a kind of combination road information according to claim 1 automatically, special
Sign is, current transport condition and road information is persistently obtained described in step 4, and according to the change pair of Real-time Road state
The driving instruction of automobile, which is made, timely to be adjusted, and is persistently believed road after automobile executes the driving instruction that ECU is sent out in step 3
Breath is detected with vehicle speed information, if：
1) information of road where automobile changes, then needs that maximum travelling speed threshold is arranged according to new road information again
Value Vm, and by current vehicle speed V and newly-installed maximum travelling speed threshold value VmIt re-starts and compares, repeat step 3；
2) information of road where automobile does not change, then judges that automobile is in the state of normal driving, then continue to execute step
Rapid 4, the maximum travelling speed threshold value V that step 2 is arrangedmWithout changing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810295851.1A CN108313056A (en) | 2018-03-30 | 2018-03-30 | A kind of method that automobile maximum travelling speed is arranged in combination road information automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810295851.1A CN108313056A (en) | 2018-03-30 | 2018-03-30 | A kind of method that automobile maximum travelling speed is arranged in combination road information automatically |
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| Publication Number | Publication Date |
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| CN108313056A true CN108313056A (en) | 2018-07-24 |
Family
ID=62896519
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810295851.1A Pending CN108313056A (en) | 2018-03-30 | 2018-03-30 | A kind of method that automobile maximum travelling speed is arranged in combination road information automatically |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484394A (en) * | 2018-11-28 | 2019-03-19 | 奇瑞汽车股份有限公司 | The system and method for obtaining vehicle safety travel speed |
| CN109760678A (en) * | 2019-02-28 | 2019-05-17 | 重庆长安汽车股份有限公司 | A kind of method for limiting speed of automotive self-adaptive cruise system |
| CN110962854A (en) * | 2019-12-13 | 2020-04-07 | 北汽福田汽车股份有限公司 | Vehicle and control method and system thereof |
| CN111231953A (en) * | 2018-11-13 | 2020-06-05 | 华创车电技术中心股份有限公司 | Navigation map data-based speed fixing system and navigation map data-based speed fixing method |
| CN113242354A (en) * | 2021-05-07 | 2021-08-10 | 维沃移动通信有限公司 | Message notification method and device, electronic equipment and readable storage medium |
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| JP2007182143A (en) * | 2006-01-06 | 2007-07-19 | Toyota Motor Corp | Vehicle running control unit |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111231953A (en) * | 2018-11-13 | 2020-06-05 | 华创车电技术中心股份有限公司 | Navigation map data-based speed fixing system and navigation map data-based speed fixing method |
| CN109484394A (en) * | 2018-11-28 | 2019-03-19 | 奇瑞汽车股份有限公司 | The system and method for obtaining vehicle safety travel speed |
| CN109760678A (en) * | 2019-02-28 | 2019-05-17 | 重庆长安汽车股份有限公司 | A kind of method for limiting speed of automotive self-adaptive cruise system |
| CN110962854A (en) * | 2019-12-13 | 2020-04-07 | 北汽福田汽车股份有限公司 | Vehicle and control method and system thereof |
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| CN113242354A (en) * | 2021-05-07 | 2021-08-10 | 维沃移动通信有限公司 | Message notification method and device, electronic equipment and readable storage medium |
| CN113242354B (en) * | 2021-05-07 | 2023-02-21 | 维沃移动通信有限公司 | Message notification method and device, electronic equipment and readable storage medium |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180724 |
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| RJ01 | Rejection of invention patent application after publication |