EP3743323A1 - Commande de colonne de direction retractable pour conduite autonome avec systeme de navigation - Google Patents
Commande de colonne de direction retractable pour conduite autonome avec systeme de navigationInfo
- Publication number
- EP3743323A1 EP3743323A1 EP18816191.3A EP18816191A EP3743323A1 EP 3743323 A1 EP3743323 A1 EP 3743323A1 EP 18816191 A EP18816191 A EP 18816191A EP 3743323 A1 EP3743323 A1 EP 3743323A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steering column
- autonomous driving
- column
- navigation system
- retraction
- 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- Withdrawn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
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000013475 authorization Methods 0.000 claims description 3
- 102100034112 Alkyldihydroxyacetonephosphate synthase, peroxisomal Human genes 0.000 description 2
- 101000799143 Homo sapiens Alkyldihydroxyacetonephosphate synthase, peroxisomal Proteins 0.000 description 2
- 238000000848 angular dependent Auger electron spectroscopy Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/183—Steering columns yieldable or adjustable, e.g. tiltable adjustable between in-use and out-of-use positions, e.g. to improve access
Definitions
- the present invention relates to a control method of a motor vehicle comprising a retractable steering column and an autonomous driving system of this vehicle, and a motor vehicle implementing such a method.
- Motor vehicles have a steering column receiving a rear steering wheel maneuvered by the driver, connected to the front to a steering box controlling the pivoting of the front wheels of the vehicle.
- Most motor vehicles have an adjustment of the steering column, in particular in height, and in depth along the axis of rotation of this column, to adjust the position of the steering wheel to suit the desire of the driver.
- a method of operating a steering column with motorized adjustments detects various parameters indicating the willingness of the driver to enter the vehicle or exit, in order to perform automatically with the engines a setting facilitating this entry or exit.
- the engine for adjusting the depth of the steering wheel intended to adjust the driving position, in order to to retract this flywheel forward on a run of a few tens of millimeters, which saves an axial space generally between 50 and 150 millimeters.
- ADAS Advanced Driver Assistance Systems
- levels include in particular a level 3 corresponding to a delegation by the driver of a party its driving on the two dimensions of longitudinal and lateral guidance of the vehicle, allowing it to focus on other tasks temporarily.
- This level 3 requires the ability to regain control of driving quickly if conditions demand it.
- the succession of movements of the steering column can deconcentrate the driver.
- the present invention is intended to avoid these disadvantages of the prior art.
- An advantage of this control method is that the autonomous driving system receiving information from the navigation system enabling it to predict traffic conditions, and to anticipate these conditions by following, for example, an evolution of the traffic, it is possible in this way avoid too frequent retraction of the steering column, especially if a starting period of autonomous driving is planned for a sufficiently short time.
- the method according to the invention may further comprise one or more of the following features, which may be combined with one another.
- the autonomous driving system performs with the information of the navigation system an estimate of the probable duration of this period.
- the method advantageously estimates the probable duration of the period with information from the navigation system concerning areas of work or traffic jams.
- the method advantageously compares the probable duration of the period with a minimum threshold duration, to allow the retraction of the steering column above this threshold and prohibit it below.
- the process allows the retraction of the steering column.
- the method prohibits the retraction of the steering column.
- the invention also relates to a motor vehicle equipped with means implementing a control method comprising any one of the preceding features, remarkable in that it comprises a steering column engine control computer.
- the vehicle comprises a cabin management computer controlling functions relating to the driving of the vehicle, implementing the navigation system, connected by a beam to the column control computer.
- the retracting distance of the steering column may be between 50 and 150 millimeters.
- the engine of the column also realizes steering position of the steering wheel for normal driving by the driver.
- FIG. 1 shows a steering column system according to the invention
- FIG. 2 is a flowchart indicating operating choices of this system.
- FIG. 1 shows a steering column 2 comprising a front part terminating in a connecting gimbal with a steering rack 4, and a rear part guided in a sheath of a fixed support 8, connected to the front part by a second gimbal, ending with a rear end piece 6 provided to receive the steering wheel.
- the support 8 comprises for the normal driving of the vehicle, a first electric motor 10 regulating automatically the height of the sleeve, and the flywheel supported by the column, and a second electric motor 10 applying a retraction or deployment of the rear portion of the column to adjust the axial position of the steering wheel.
- a column operator control computer 16 manages the operations of the electric motors 10, in order to perform certain functions such as, for example, memorizing the positions of the steering wheel according to the driver, or automatic movements during entry or exit. driver in the vehicle.
- a connecting electrical harness 14 connects the column control computer 16 to a cabin management computer 12, also called “BSI” for “intelligent service housing", which controls a large number of functions relating to the general operation of the vehicle , including a navigation system, and various interior equipment controls of the cabin.
- BSI cabin management computer 12
- the cockpit management computer 12 receives data coming from the driver's control, such as requests for lighting or heating, coming from different sensors of the vehicle such as a cabin temperature sensor 18, or coming from functions of the vehicle. driving assistance, including in particular the navigation system using a satellite positioning system.
- the cockpit management computer 12 controls different vehicle functions, including in particular autonomous driving functions such as a level 3 autonomous "ADAS" type taxi.
- autonomous driving functions such as a level 3 autonomous "ADAS" type taxi.
- the column control computer 16 receives in particular autonomous driving information, requesting a retraction of the steering column during a period of autonomous driving to free space in front of the driver.
- any other type of vehicle operating computer processing information of driving conditions can be used.
- the cabin management calculator 12 evaluates the probable duration of this autonomous driving to determine whether its duration is sufficient to allow retraction of the steering column avoiding redeployment in a too short time.
- Figure 2 shows a first condition 20 evaluated by the cabin management computer 12, determining if the vehicle is stopped. In the positive case, a first decision 22 authorizes O the retraction of the steering column.
- the probable duration t of the incoming autonomous driving mode which must be greater than a minimum threshold duration ts.
- the probable duration t of the autonomous driving mode depends on information received by the negation system, coming from the outside, such as the end of a traffic jam or the end of work zones.
- FIG. 3 presents a first function representing the cabin management computer 12, receiving external information 40 for the operation of the navigation system, such as information on work zones or congestion purposes, and calculating for a mode next autonomous driving 42 information on its probable duration t.
- the autonomous driving mode 42 delivers to the column control computer 16 an authorization O or a prohibition N of retraction of its column.
- the column control computer 16 in turn delivers position information of its column 48, coming from position sensors of this column, which can be delivered to the cabin management computer 12 in order to verify in return if the order that he gave was well followed. In a simple way with this feedback loop, it is possible to detect a failure of the steering system.
- the steering system according to the invention makes it possible to optimize the dimensioning of the electric motor 10 and its power electronics by avoiding too frequent starts causing overheating, which makes it possible to limit its size, its mass and its cost. In addition, it provides better comfort and improved driver concentration by avoiding too frequent changes in steering wheel position.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
- Navigation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1762316A FR3075150B1 (fr) | 2017-12-18 | 2017-12-18 | Commande de colonne de direction retractable pour conduite autonome avec systeme de navigation |
| PCT/FR2018/052833 WO2019122552A1 (fr) | 2017-12-18 | 2018-11-14 | Commande de colonne de direction retractable pour conduite autonome avec systeme de navigation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3743323A1 true EP3743323A1 (fr) | 2020-12-02 |
Family
ID=61521656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18816191.3A Withdrawn EP3743323A1 (fr) | 2017-12-18 | 2018-11-14 | Commande de colonne de direction retractable pour conduite autonome avec systeme de navigation |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3743323A1 (fr) |
| FR (1) | FR3075150B1 (fr) |
| WO (1) | WO2019122552A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7400244B2 (ja) * | 2019-07-29 | 2023-12-19 | 株式会社ジェイテクト | ステアリング装置 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2964637B1 (fr) | 2010-09-09 | 2014-12-12 | Zf Systemes De Direction Nacam Sas | Colonne de direction retractable notamment pour faciliter l'acces a un poste de conduite. |
| CN107416008A (zh) * | 2016-04-13 | 2017-12-01 | 法拉第未来公司 | 使车辆方向盘自动缩回和伸出的系统和方法 |
-
2017
- 2017-12-18 FR FR1762316A patent/FR3075150B1/fr not_active Expired - Fee Related
-
2018
- 2018-11-14 WO PCT/FR2018/052833 patent/WO2019122552A1/fr not_active Ceased
- 2018-11-14 EP EP18816191.3A patent/EP3743323A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR3075150A1 (fr) | 2019-06-21 |
| WO2019122552A1 (fr) | 2019-06-27 |
| FR3075150B1 (fr) | 2020-10-16 |
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