GB2522544A - Method for operating a driving assistance system of a vehicle - Google Patents
Method for operating a driving assistance system of a vehicle Download PDFInfo
- Publication number
- GB2522544A GB2522544A GB1422672.4A GB201422672A GB2522544A GB 2522544 A GB2522544 A GB 2522544A GB 201422672 A GB201422672 A GB 201422672A GB 2522544 A GB2522544 A GB 2522544A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vehicle
- weather
- driving assistance
- assistance system
- incident
- 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.)
- Withdrawn
Links
- 230000008859 change Effects 0.000 claims abstract description 12
- 239000000725 suspension Substances 0.000 claims abstract description 5
- 230000005484 gravity Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 7
- 230000002411 adverse Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
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- 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
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
-
- 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/22—Conjoint control of vehicle sub-units of different type or different function including control of suspension systems
-
- 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
- B60W30/16—Control of distance between vehicles, e.g. keeping a distance to preceding vehicle
- B60W30/162—Speed limiting therefor
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/0098—Details of control systems ensuring comfort, safety or stability not otherwise provided for
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/085—Changing the parameters of the control units, e.g. changing limit values, working points by control input
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/80—Exterior conditions
- B60G2400/84—Atmospheric conditions
- B60G2400/841—Wind
-
- 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
- B60W2555/00—Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00
- B60W2555/20—Ambient conditions, e.g. wind or rain
-
- 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
- B60W2556/00—Input parameters relating to data
- B60W2556/45—External transmission of data to or from the vehicle
- B60W2556/50—External transmission of data to or from the vehicle of positioning data, e.g. GPS [Global Positioning System] data
-
- 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
- B60W2754/00—Output or target parameters relating to objects
- B60W2754/10—Spatial relation or speed relative to objects
- B60W2754/30—Longitudinal distance
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Traffic Control Systems (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
The invention relates to a method for operating a driving assistance system of a vehicle, comprising the steps of obtaining 1 weather information on a weather incident by the driving assistance system, of analysing 2 the obtained weather information in respect of the location and/or the severity of the weather incident, of asking 3 for a drivers consent to change a vehicle parameter by the driving assistance system if the location and/or the severity of the weather incident meet a predetermined requirement, and of changing 4 the vehicle parameter if the driver has given his consent in order to achieve an increased safety in a vehicle. The weather information can comprise information on a wind direction, wind speed or wind character and the vehicle parameter may comprise a change in the suspension, increasing a safety distance to a preceding vehicle, controlling a headlight or taillight, switching on or preventing the switching off of the electronic stability system or setting a maximum speed of the vehicle. The predetermined requirement may be related to a severity or distance to the weather incident.
Description
Method for Operating a Driving Assistance System of a Vehicle The invention relates to a method for operating a driving assistance system of a vehicle.
Weather conditions or weather incidents like a storm, snow fall, or a sudden temperature drop, for instance, affect traffic and can result in severe accidents. As a consequence, more and more driving assistance systems of vehicles feature measures for improving the safety of the vehicle in adverse weather conditions.
For example, the KR 2013 011 222 9 A describes a system for a vehicle, wherein a traffic information system provides information about a weather condition, in particular a weather disaster information. This information is used to calculate an alternative route for the vehicle. A corresponding information on the alternative route is presented to the driver.
The US 2009/0143937 Al describes a method for controlling the operating characteristics of a vehicle, wherein weather information, e.g. wind speed, is received and wherein at least one operating characteristics of the vehicle, such as the characteristics of a suspension system, of a ride-hight adjusting system or a stability control system is modified in response to the weather information.
The DE 10 2007 050 357 Al describes a method for using weather information in a vehicle, wherein a weather information is received from infrastructure means and is used in the vehicle to change the parameters of a distance control system, i.e. a safety distance, or a parameter of a security system or a parameter of a driving stability system.
It is an object of the present invention to provide a method for operating a driving assistance of a vehicle that results in an increased safety, in particular in adverse weather conditions.
According to the invention, there is provided a method for operating a driving assistance system of a vehicle according to independent claim 1.
Further advantages and embodiments are set out according to the dependent claims, the
detailed description and figure.
The inventive method for operating a driving assistance system of a vehicle, for instance a vehicle distance speed regulator, a cruise control, or the like, in particular a driving assistance system with a positioning system, comprises several steps. A first step is obtaining a weather information on a weather incident or on weather conditions by the driving assistance system. The weather information may be obtained via a traffic information receiving system, such as the traffic message channel (TMC) or the transport protocol experts group (TREG). This obtaining of information on the weather condition may be performed automatically. The weather incident may be a snow fall, fog, rain, or a variety of wind situations, for example. A next step is analyzing the obtained weather information by the driving assistance system in respect of the location and/or the severity of the weather incident. Analyzing the obtained weather information in respect of the location of the weather incident may comprise relating the weather incident to a distance from the current position of the vehicle. To this end, the driving assistance system may comprise a positioning system.
A subsequent step is asking for the driver's consent to change a vehicle parameter by the driving assistance system if the location or distance and/or the severity of the weather incident meets a predetermined requirement. Finally, the method comprises the step of changing the vehicle parameter if the driver has given his consent. This changing of the vehicle parameter may be done or executed by the driving assistance system automatically or manually by the driver. The driving assistance system can also present an option to the driver, where the driver can decide whether the change of vehicle parameters is to be executed manually or automatically. This gives the advantage that the vehicle parameter can be set to a regime that is safer in the prevailing weather conditions or for the imminent weather incident than the standard vehicle parameter set. At the same time, the driver is much more aware of the change of the vehicle parameter than he would be if he were not asked for his or her consent. Hence, the driver is also more aware of the potential danger of the weather incident. As a consequence, the safety is increased. This increase in safety is achieved with minimal efforts, as the driving assistance system does not require additional hardware units, for example.
In a preferred embodiment of the present invention, the weather information comprises information on a wind direction and/or a wind strength and/or a wind character. So, various wind situations like strong winds, gusty winds, tornados, gales, or the like can be characterized by the weather information. This gives the advantage of an improved security and an improved reliability of the vehicle driving dynamics during extreme wind conditions. Furthermore, as winds are a more local phenomenon than for example a temperature, the improvement in safety is especially high. Furthermore, winds can be measured very well, that is, the adaptation of the vehicle parameter can be optimized accurately to the prevailing wind situation.
In another embodiment, the changing of the vehicle parameter comprises a change in the suspension of the vehicle and/or an increasing of a safety distance from a preceding vehicle and/or a switching on of an exterior light of the vehicle, in particular a tail light and/or a head light of the vehicle, and/or switching on an electronic stability control (ESO) unit of the vehicle and/or prohibiting a switching off of the ESC of the vehicle and/or setting a maximum speed for the vehicle. The maximum speed may be set for a speed regulating system only. This gives the advantage that the vehicle is less influenced by the weather conditions, in particular wind, and accidents are less likely to occur. In particular switching on an exterior light of the vehicle improves safety as this can affect the behaviour of other road users. Setting a maximum speed of the vehicle that is limiting the speed of the vehicle is a particularly efficient means for reducing the probability of an accident as well as the potential damage an accident might inflict.
In yet another embodiment, the vehicle parameter is automatically changed back to its original value, i.e. the value it had before the changing vehicle parameter in the scope of what has been mentioned above, when the predetermined requirement is not met anymore. This gives the advantage that the original vehicle parameters and hence the standard driving dynamics of the vehicle are re-established as soon as possible, hence optimizing the safety of the vehicle again. Furthermore, as there is no need for a driver interaction at this point, the method is very comfortable for the driver.
In a further embodiment, the predetermined requirement is related to a distance and/or a level of severity of the weather incident. In particular, a weather incident that is close to a current position of the vehicle will be more likely to fulfil the predetermined requirement than a weather incident that is far away from the current position of the vehicle. A severe weather incident will be more likely to fulfil the predetermined requirement than a moderate weather incident. A measure for the severity of a weather incident may be, for instance, a Beaufort-scale strength of a wind.
The inventive method may also be combined with another method for operating a driving assistance system, for example that of the KR 2013 011 222 9 A. Then, the inventive method gives the advantage of increasing the safety when an alternative route is unavailable or if the vehicle is already in the area of the weather incident.
By considering the following detailed description of an exemplary embodiment in conjunction with the accompanying drawing, the teachings of the present invention can be readily understood, and at least some additional specific details will appear. Herein the only Fig. shows an exemplary flow chart of an exemplary embodiment of an inventive method.
The flowchart in the figure depicts an exemplary embodiment of the inventive method.
The first step is an obtaining 1 of weather information on a weather incident or a weather condition by the driving assistance system. This is achieved by the vehicle receiving traffic messages via radio, for instance via a traffic message channel or the channel of the transport protocol experts group. The next step is analyzing 2 the obtained weather information by the driving assistance system. This may be done by an electronic control unit of the driving assistance system that controls, for instance, telemetric functions of the vehicle and hence may change a parameter of the vehicle such as a parameter of a suspension system. The subsequent step is an asking 3, in this example, where a driver is asked by the driving assistance system for his consent to the driving assistance system changing the vehicle parameter. This is only executed, if the location and/or the severity of the weather incident meet a predetermined requirement in this example, e.g. a predetermined distance from the location of the vehicle and/or a predetermined strength of a wind. If the analyzing 2 of the obtained weather information produces the result, that the weather incident does not meet a predetermined requirement, no further step will be taken in this example. The same is true it the driver does not give his consent to change a vehicle parameter.
If the driver gives his consent to changing the vehicle parameter, in the present embodiment of the method, a proposing 4 of changing the vehicle parameter manually is an additional step. Here, for instance a timer might be part of the proposal, so that when the driver does not take an action to manually change the vehicle parameter, the next step, that is a changing 5 of the vehicle parameter here, is executed automatically. For instance, the electronic control unit that controls the telemetric functions may make a chassis control unit lower the center of gravity of the vehicle. Furthermore, it may set a body control unit or a driver assistance unit to increase a safety distance to another vehicle in front of the vehicle. This gives the advantage of a better reaction time in case of an emergency. Furthermore, the electronic control unit may make a light control unit to set a tail lamp glowing in order to prevent a hazard by another vehicle running into the vehicle from the back. Finally, the electronic control unit may activate an electronic stability control unit of the vehicle and deactivate the possibility of switching the electronic stability control unit off.
Finally, the last step is an automatic changing back 6 of the vehicle parameter to its original value when the predetermined requirement is not met anymore. For example, this may be the case when the distance between the vehicle and the weather incident exceeds a predetermined value. Also, sensors of the vehicle can be used by the driving assistance system in order to determine whether the weather incident is still relevant for the vehicle or not.
List of reference signs 1 Obtaining 2 Analyzing 3 Asking 4 Proposing Changing 6 Changing Back
Claims (5)
- Claims A method for operating a driving assistance system of a vehicle, comprising the steps: -obtaining (1) a weather information on a weather incident by the driving assistance system; -analyzing (2) the obtained weather information by the driving assistance system in respect of the location and/or the severity of the weather incident; -asking (3) for a driver's consent by the driving assistance system to change a vehicle parameter by the driving assistance system if the location and/or the severity of the weather incident meet a predetermined requirement; and -changing (4) the vehicle parameter if the driver has given his consent.
- 2. The method of claim 1, characterised in that the weather information comprises information on a wind direction and/or a wind strength and/or a wind character.
- 3. The method according to any one of the precedent claims, characterised in that the changing (4) of a vehicle parameter comprises a change in the suspension of the vehicle and/or a lowering of a center of gravity of the vehicle and/or an increasing of a safety distance to a preceding vehicle and/or a switching on of a tail light and/or head light of the vehicle and/or switching on an electronic stability control unit of the vehicle and/or prohibiting a switching off of the electronic stability control unit of the vehicle and/or setting a maximum speed of the vehicle.
- 4. The method according to any one of the precedent claims, characterised by an automatic changing back (5) of the vehicle parameter to its original value when the predetermined requirement is not met any more.S
- 5. The method according to any one of the precedent claims, characterised in that the predetermined requirement is related to a distance and/or a level of severity of the weather incident.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1422672.4A GB2522544A (en) | 2014-12-18 | 2014-12-18 | Method for operating a driving assistance system of a vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1422672.4A GB2522544A (en) | 2014-12-18 | 2014-12-18 | Method for operating a driving assistance system of a vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2522544A true GB2522544A (en) | 2015-07-29 |
Family
ID=53520109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1422672.4A Withdrawn GB2522544A (en) | 2014-12-18 | 2014-12-18 | Method for operating a driving assistance system of a vehicle |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2522544A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017133912A1 (en) * | 2016-02-01 | 2017-08-10 | Jaguar Land Rover Limited | Control system for a vehicle and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090143937A1 (en) * | 2007-12-04 | 2009-06-04 | Lockheed Martin Corporation | GPS-based traction control system using wirelessly received weather data |
| WO2014047250A1 (en) * | 2012-09-20 | 2014-03-27 | Google Inc. | Detecting road weather conditions |
| WO2014051890A1 (en) * | 2012-09-28 | 2014-04-03 | Tesla Motors, Inc. | Vehicle air suspension control system |
| US20140107889A1 (en) * | 2012-10-17 | 2014-04-17 | Toyota Motor Engineering & Manufacturing North America, Inc., | Vehicle auxiliary system with global positioning system control |
| WO2014168851A1 (en) * | 2013-04-11 | 2014-10-16 | Google Inc. | Methods and systems for detecting weather conditions using vehicle onboard sensors |
-
2014
- 2014-12-18 GB GB1422672.4A patent/GB2522544A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090143937A1 (en) * | 2007-12-04 | 2009-06-04 | Lockheed Martin Corporation | GPS-based traction control system using wirelessly received weather data |
| WO2014047250A1 (en) * | 2012-09-20 | 2014-03-27 | Google Inc. | Detecting road weather conditions |
| WO2014051890A1 (en) * | 2012-09-28 | 2014-04-03 | Tesla Motors, Inc. | Vehicle air suspension control system |
| US20140107889A1 (en) * | 2012-10-17 | 2014-04-17 | Toyota Motor Engineering & Manufacturing North America, Inc., | Vehicle auxiliary system with global positioning system control |
| WO2014168851A1 (en) * | 2013-04-11 | 2014-10-16 | Google Inc. | Methods and systems for detecting weather conditions using vehicle onboard sensors |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017133912A1 (en) * | 2016-02-01 | 2017-08-10 | Jaguar Land Rover Limited | Control system for a vehicle and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |