CN107300013A - A kind of automatic transmission identification of road grade method and system - Google Patents
A kind of automatic transmission identification of road grade method and system Download PDFInfo
- Publication number
- CN107300013A CN107300013A CN201710560575.2A CN201710560575A CN107300013A CN 107300013 A CN107300013 A CN 107300013A CN 201710560575 A CN201710560575 A CN 201710560575A CN 107300013 A CN107300013 A CN 107300013A
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- vehicle
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- slope
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/60—Inputs being a function of ambient conditions
- F16H59/66—Road conditions, e.g. slope, slippery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/60—Inputs being a function of ambient conditions
- F16H59/66—Road conditions, e.g. slope, slippery
- F16H2059/663—Road slope
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/60—Inputs being a function of ambient conditions
- F16H59/66—Road conditions, e.g. slope, slippery
- F16H2059/666—Determining road conditions by using vehicle location or position, e.g. from global navigation systems [GPS]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H2061/0015—Transmission control for optimising fuel consumptions
Abstract
The invention discloses a kind of automatic transmission identification of road grade method and system, it is related to technical field of automotive transmission control.This method includes：Digital Map Data for Car Navigation and GIS geography information are carried out into position to associate, the target position information at the different distance of vehicle traveling front on width of roadway direction at multiposition is obtained according to route or travel by vehicle；By vehicle-mounted GPS locator, current vehicle position information is obtained；Calculate the geographical horizontal range and geographical value of slope between current vehicle position and multiple target locations；By adjusting mobile lidar luffing angle, the actual range between current vehicle position and multiple target locations is obtained；Determine the actual grade value of current vehicle position and each target location；And actual grade value will be transmitted to control unit for automatic shift.The value of slope of the present invention resolves simple, and accuracy is high, and resolve is prediction value of slope in front of vehicle traveling, and safety guarantee is provided for vehicle traveling.
Description
Technical field
The present invention relates to technical field of automotive transmission control, more particularly relate to a kind of automatic transmission road grade and know
Other method and system.
Background technology
With the development of automotive engineering, automatic transmission gradually substitutes manual transmission and is widely used in automobile dynamic system
In, the operation of the more road environments and driver dependent on residing for current vehicle of automatic transmission shift timing.And energy
Enough gears for judging automatic transmission according to current vehicle condition and road conditions in real time, select suitable gearratio, for whole
Car dynamical system fuel-economizing is most important, while can also improve the power performance of vehicle.
Identification of road grade be when vehicle is travelled using the sensing element collection vehicle driving parameters on vehicle,
The gradient of road where calculating vehicle traveling accordingly.Existing identification of road grade method is typically entered according to dynamics of vehicle equation
The row gradient is recognized, multiple vehicle parameters, including motor torque, current shelves are more accurately gathered using needs during this kind of method
Position, wheel speed and brake force etc.；But this kind of method is only presently in the gradient of position to vehicle and estimated, and it is not directed to pair
The prediction of the road ahead gradient, security incident is easily caused in practical application.
In summary, there is the gradient that position is only presently in vehicle in identification of road grade method of the prior art
The problem of being estimated, and be not directed to the prediction to the road ahead gradient.
The content of the invention
The embodiment of the present invention provides a kind of automatic transmission identification of road grade method and system, to solve prior art
It is middle to be estimated in the presence of the gradient that position is only presently in vehicle, and it is not directed to asking for the prediction to the road ahead gradient
Topic.
The embodiment of the present invention provides a kind of automatic transmission identification of road grade method, including：
Digital Map Data for Car Navigation and GIS geography information are carried out into position to associate, vehicle is obtained according to route or travel by vehicle
Target position information at the different distance of traveling front on width of roadway direction at multiposition；
By vehicle-mounted GPS locator, current vehicle position information is obtained；
According to multiple target position informations and current location information, calculate current vehicle position and multiple target locations it
Between geographical horizontal range and geographical value of slope；
By adjusting mobile lidar luffing angle, the reality between current vehicle position and multiple target locations is obtained
Distance；
According to the geographical horizontal range of correspondence target location, actual range and geographical value of slope, vehicle present bit is determined
Put the actual grade value with each target location；And combining road condition information by the actual grade value of pre- travel route transmit to
Control unit for automatic shift；
Control unit for automatic shift is selected corresponding according to the actual grade value and safe driving specification of pre- travel route
Gear information carries out vehicle traveling.
It is preferred that described according to many on width of roadway direction at the different distance of route or travel by vehicle acquisition vehicle traveling front
Target position information at position；Including：It is 10m that vehicle measures the distance between line with the farthest road surface of vehicle front, often apart
It is a road surface measurement line at 1m, and multiple road surface measurement points is uniformly laid with each road surface measurement line.
It is preferred that the same road surface measures the distance between described road surface measurement point and the road surface measurement point on line
For 0.5~1m.
It is preferred that the vehicle traveling, including：Flat slope normally travel, upward slope give it the gun or down hill braking traveling.
The embodiment of the present invention provides a kind of automatic transmission identification of road grade system, including：Vehicle-mounted GPS locator, car
Carry laser radar, data processing unit and control unit for automatic shift；
The vehicle-mounted GPS locator, for obtaining current vehicle position information；
The mobile lidar, for by adjusting mobile lidar luffing angle, obtain current vehicle position with
Actual range between multiple target locations；
The data processing unit,
Associate, obtained according to route or travel by vehicle for Digital Map Data for Car Navigation and GIS geography information to be carried out into position
Target position information at the different distance of vehicle traveling front on width of roadway direction at multiposition；
For according to multiple target position informations and current location information, calculating current vehicle position and multiple targets position
Geographical horizontal range and geographical value of slope between putting；
And for the geographical horizontal range according to correspondence target location, actual range and geographical value of slope, determine car
Current location and the actual grade value of each target location；And combining road condition information is by the actual grade of pre- travel route
Value is transmitted to control unit for automatic shift；
The control unit for automatic shift, for the actual grade value and safe driving specification according to pre- travel route,
Corresponding gear information is selected to carry out vehicle traveling.
There is provided a kind of automatic transmission identification of road grade method and system in the embodiment of the present invention, with prior art phase
Than its advantage is：The present invention is by Digital Map Data for Car Navigation, GIS geography information, vehicle-mounted GPS locator and laser radar
It is combined, i.e., the geographic coordinate information of virtual target position is obtained by Digital Map Data for Car Navigation and GIS geography information, is passed through
Vehicle-mounted GPS locator obtains vehicle actual geographic coordinate information, so as to pass through geographic coordinate information and actual geographic coordinate information
Geographical horizontal range and geographical value of slope, the actual range scanned in conjunction with laser thunder are obtained, and then is obtained before vehicle traveling
Value of slope between each virtual target position in side and vehicle, the resolving of its value of slope is simple, and accuracy is high, and resolving is vehicle
Prediction value of slope in front of traveling, safety guarantee is provided for vehicle traveling.
Brief description of the drawings
Fig. 1 is a kind of automatic transmission identification of road grade method flow diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of automatic transmission identification of road grade system structure diagram provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is a kind of automatic transmission identification of road grade method flow diagram provided in an embodiment of the present invention.Such as Fig. 1 institutes
Show, this method includes：
Step S101, carries out position by Digital Map Data for Car Navigation and GIS geography information and associates, according to route or travel by vehicle
Obtain the target position information on width of roadway direction at multiposition at the different distance of vehicle traveling front.
It should be noted that it is 10m that vehicle measures the distance between line with the farthest road surface of vehicle front, it is at 1m often
One road surface measures and is uniformly laid with multiple road surface measurement points on line, and each road surface measurement line；And same road surface measures line
On the distance between the road surface measurement point and the road surface measurement point be 0.5~1m.
Step S102, by vehicle-mounted GPS locator, obtains current vehicle position information.
Step S103, according to multiple target position informations and current location information, calculate current vehicle position with it is multiple
Geographical horizontal range and geographical value of slope between target location.
Step S104, by adjusting mobile lidar luffing angle, obtains current vehicle position and multiple target locations
Between actual range.
Step S105, according to the geographical horizontal range of correspondence target location, actual range and geographical value of slope, determines car
Current location and the actual grade value of each target location；And combining road condition information is by the actual grade of pre- travel route
Value is transmitted to control unit for automatic shift.
Step S106, control unit for automatic shift according to the actual grade value and safe driving specification of pre- travel route,
Corresponding gear information is selected to carry out vehicle traveling.
It should be noted that vehicle is travelled, including：Flat slope normally travel, upward slope give it the gun or down hill braking traveling.
It should be noted that of the invention by Digital Map Data for Car Navigation, GIS geography information, vehicle-mounted GPS locator and laser
Radar is combined, i.e., the geographic coordinate information of virtual target position is obtained by Digital Map Data for Car Navigation and GIS geography information,
Vehicle actual geographic coordinate information is obtained by vehicle-mounted GPS locator, so as to pass through geographic coordinate information and actual geographic coordinate
Acquisition of information geography horizontal range and geographical value of slope, the actual range scanned in conjunction with laser thunder, and then obtain vehicle row
Sail the value of slope between each virtual target position in front and vehicle, the resolving of its value of slope is simple, and accuracy is high, and resolve be
Prediction value of slope in front of vehicle traveling, safety guarantee is provided for vehicle traveling.
Fig. 2 is a kind of automatic transmission identification of road grade system structure diagram provided in an embodiment of the present invention.Such as Fig. 2
Shown, the system includes：Vehicle-mounted GPS locator 1, mobile lidar 2, data processing unit 3 and automatic transmission control are single
Member 4；
Vehicle-mounted GPS locator 1, for obtaining current vehicle position information；
Mobile lidar 2, for by adjusting mobile lidar luffing angle, obtain current vehicle position with it is multiple
Actual range between target location；
Data processing unit 3,
Associate, obtained according to route or travel by vehicle for Digital Map Data for Car Navigation and GIS geography information to be carried out into position
Target position information at the different distance of vehicle traveling front on width of roadway direction at multiposition；
For according to multiple target position informations and current location information, calculating current vehicle position and multiple targets position
Geographical horizontal range and geographical value of slope between putting；
And for the geographical horizontal range according to correspondence target location, actual range and geographical value of slope, determine car
Current location and the actual grade value of each target location；And combining road condition information is by the actual grade of pre- travel route
Value is transmitted to control unit for automatic shift；
Control unit for automatic shift 4, for the actual grade value and safe driving specification according to pre- travel route, selection
Corresponding gear information carries out vehicle traveling.
Based on same inventive concept, the embodiments of the invention provide a kind of automatic transmission identification of road grade system, by
The principle for solving technical problem in the system is similar to a kind of automatic transmission identification of road grade method, therefore the reality of the system
The implementation for the method for may refer to is applied, part is repeated and repeats no more.
Disclosed above is only several specific embodiments of the present invention, and those skilled in the art can be to present invention progress
It is various to change with modification without departing from the spirit and scope of the present invention, if these modifications and variations of the present invention belong to the present invention
Within the scope of claim and its equivalent technologies, then the present invention is also intended to comprising including these changes and modification.
Claims (5)
1. a kind of automatic transmission identification of road grade method, it is characterised in that including：
Digital Map Data for Car Navigation and GIS geography information are carried out into position to associate, vehicle traveling is obtained according to route or travel by vehicle
Target position information at the different distance of front on width of roadway direction at multiposition；
By vehicle-mounted GPS locator, current vehicle position information is obtained；
According to multiple target position informations and current location information, calculate between current vehicle position and multiple target locations
Geographical horizontal range and geographical value of slope；
By adjusting mobile lidar luffing angle, obtain between current vehicle position and multiple target locations it is actual away from
From；
According to the correspondence geographical horizontal range of target location, actual range and geographical value of slope, determine current vehicle position with
The actual grade value of each target location；And combining road condition information transmits the actual grade value of pre- travel route to automatic
Transmission control unit；
Control unit for automatic shift selects corresponding gear according to the actual grade value and safe driving specification of pre- travel route
Information carries out vehicle traveling.
2. automatic transmission identification of road grade method as claimed in claim 1, it is characterised in that described to be travelled according to vehicle
Route obtains the target position information on width of roadway direction at multiposition at the different distance of vehicle traveling front；Including：Vehicle
It is 10m to measure the distance between line with the farthest road surface of vehicle front, is often a road surface measurement line at 1m, and each road surface
Multiple road surface measurement points are uniformly laid with measurement line.
3. automatic transmission identification of road grade method as claimed in claim 2, it is characterised in that the same road surface measurement
The distance between described road surface measurement point and the road surface measurement point on line are 0.5~1m.
4. automatic transmission identification of road grade method as claimed in claim 1, it is characterised in that the vehicle traveling, bag
Include：Flat slope normally travel, upward slope give it the gun or down hill braking traveling.
5. a kind of automatic transmission identification of road grade system, it is characterised in that including：Vehicle-mounted GPS locator (1), it is vehicle-mounted swash
Optical radar (2), data processing unit (3) and control unit for automatic shift (4)；
The vehicle-mounted GPS locator (1), for obtaining current vehicle position information；
The mobile lidar (2), for by adjusting mobile lidar luffing angle, obtaining current vehicle position and many
Actual range between individual target location；
The data processing unit (3),
Associated for Digital Map Data for Car Navigation and GIS geography information to be carried out into position, vehicle is obtained according to route or travel by vehicle
Target position information at the different distance of traveling front on width of roadway direction at multiposition；
For according to multiple target position informations and current location information, calculate current vehicle position and multiple target locations it
Between geographical horizontal range and geographical value of slope；
And for the geographical horizontal range according to correspondence target location, actual range and geographical value of slope, determine that vehicle is worked as
Front position and the actual grade value of each target location；And combining road condition information passes the actual grade value of pre- travel route
Transport to control unit for automatic shift；
The control unit for automatic shift (4), for the actual grade value and safe driving specification according to pre- travel route, choosing
Select corresponding gear information and carry out vehicle traveling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710560575.2A CN107300013A (en) | 2017-07-11 | 2017-07-11 | A kind of automatic transmission identification of road grade method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710560575.2A CN107300013A (en) | 2017-07-11 | 2017-07-11 | A kind of automatic transmission identification of road grade method and system |
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| Publication Number | Publication Date |
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| CN107300013A true CN107300013A (en) | 2017-10-27 |
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| CN201710560575.2A Pending CN107300013A (en) | 2017-07-11 | 2017-07-11 | A kind of automatic transmission identification of road grade method and system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717796A (en) * | 2018-03-21 | 2018-10-30 | 厦门雅迅网络股份有限公司 | A kind of geographical ramp self-learning method and system of vehicle |
| CN110379150A (en) * | 2018-09-13 | 2019-10-25 | 北京京东尚科信息技术有限公司 | A kind of method and apparatus for assessing road |
| CN111586566A (en) * | 2020-05-21 | 2020-08-25 | 广州小鹏车联网科技有限公司 | Communication time slot allocation method and device and server |
| CN112092812A (en) * | 2020-08-18 | 2020-12-18 | 江苏大学 | Method for automatically limiting speed of vehicle ascending slope under adaptive cruise control system |
| CN112092562A (en) * | 2019-06-18 | 2020-12-18 | 奥迪股份公司 | Controlled pitch tilt of vehicle |
| CN112307905A (en) * | 2020-09-30 | 2021-02-02 | 威伯科汽车控制系统（中国）有限公司 | Road gradient self-learning method and system for vehicle predictive control |
| CN113424240A (en) * | 2019-02-21 | 2021-09-21 | 日立安斯泰莫株式会社 | Travel road recognition device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717796A (en) * | 2018-03-21 | 2018-10-30 | 厦门雅迅网络股份有限公司 | A kind of geographical ramp self-learning method and system of vehicle |
| CN110379150A (en) * | 2018-09-13 | 2019-10-25 | 北京京东尚科信息技术有限公司 | A kind of method and apparatus for assessing road |
| CN113424240A (en) * | 2019-02-21 | 2021-09-21 | 日立安斯泰莫株式会社 | Travel road recognition device |
| CN113424240B (en) * | 2019-02-21 | 2023-11-17 | 日立安斯泰莫株式会社 | Road identification device |
| CN112092562A (en) * | 2019-06-18 | 2020-12-18 | 奥迪股份公司 | Controlled pitch tilt of vehicle |
| CN112092562B (en) * | 2019-06-18 | 2024-02-02 | 奥迪股份公司 | Vehicle controlled pitch tilt |
| CN111586566A (en) * | 2020-05-21 | 2020-08-25 | 广州小鹏车联网科技有限公司 | Communication time slot allocation method and device and server |
| CN112092812A (en) * | 2020-08-18 | 2020-12-18 | 江苏大学 | Method for automatically limiting speed of vehicle ascending slope under adaptive cruise control system |
| CN112307905A (en) * | 2020-09-30 | 2021-02-02 | 威伯科汽车控制系统（中国）有限公司 | Road gradient self-learning method and system for vehicle predictive control |
| CN112307905B (en) * | 2020-09-30 | 2023-03-17 | 采埃孚商用车系统(青岛)有限公司 | Road gradient self-learning method and system for vehicle predictive control |
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