EP3727996A1 - Direction avec colonne de direction retractable suivant la température pour conduite autonome - Google Patents
Direction avec colonne de direction retractable suivant la température pour conduite autonomeInfo
- Publication number
- EP3727996A1 EP3727996A1 EP18867327.1A EP18867327A EP3727996A1 EP 3727996 A1 EP3727996 A1 EP 3727996A1 EP 18867327 A EP18867327 A EP 18867327A EP 3727996 A1 EP3727996 A1 EP 3727996A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- steering column
- column
- steering
- 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- Withdrawn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 abstract description 3
- 238000013459 approach Methods 0.000 claims description 2
- 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
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000005236 sound signal 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.
- a short redeployment time of the steering wheel in a few seconds requires to provide a depth adjustment motor having a power substantially doubled compared to those currently used for driving position settings.
- the present invention is intended to avoid these disadvantages of the prior art.
- An advantage of this control method is that by using a cabin management computer already disposed in certain vehicles, generally comprising a temperature sensor provided for the management of the heating and air conditioning of this cabin, the installation is avoided. a new specific sensor to provide retraction or deployment of the steering column.
- the cabin management computer can optimize the movements of the steering column, in particular by anticipating the arrival of too cold a temperature to achieve a deployment of the steering column without urgency, with a slow speed.
- the method according to the invention may further comprise one or more of the following features, which may be combined with one another.
- the process allows the retraction of the steering column.
- the method prohibits the retraction of the steering column.
- the cabin management computer measures the temperature of the passenger compartment, and in the case where this temperature is below a temperature threshold, it prohibits the retraction of the steering column.
- the temperature is greater than the temperature threshold, it allows the retraction of the steering column, and continues to monitor the evolution of this temperature.
- the method emits an alert for the driver, then performs a redeployment of the steering column.
- the temperature threshold may be 0 ° C.
- 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 an electrical harness connecting the cabin management computer to the computer of column control.
- the retraction distance of the steering column is 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 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 sheath, 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 this 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.
- 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.
- Figure 2 shows a first condition 20 evaluated by the cabin management computer 12, determining if the vehicle is stopped.
- a first decision 22 authorizes O the retraction of the steering column. This retraction and a subsequent redeployment can be done slowly, whatever the temperature of the passenger compartment, the vehicle being stopped there is no urgency to carry out this redeployment.
- a second condition 34 determines whether the vehicle is in autonomous driving. In the negative case with a normal driving of the vehicle by the driver, there is a second decision 36 which prohibits N the retraction of the steering column 2.
- a third condition 24 comprising a measurement by the cabin management computer 12, the temperature of the passenger compartment T ° with the sensor 18.
- the cabin management computer 12 continues to monitor then the evolution of the temperature of the passenger compartment T °, to determine if this temperature becomes lower than 0 ° C. .
- this temperature T ° comes to pass below 0 ° C, there is then a fifth decision 32 which emits an alert for the driver, for example in the form of a light or a sound signal, and performs a redeployment of the steering column 2.
- this temperature T ° remains greater than or equal to 0 ° C, it returns to the fourth decision 28 allowing O the retraction of the steering column 2.
- the cabin management computer 12 monitors changes in the temperature T ° of this cabin, in order to anticipate an arrival of this temperature at 0 ° C.
- the cabin management computer 12 can issue a request for redeployment of the steering column 2 a little before the arrival of this temperature of 0 ° C, to allow its engine 10 a long deployment time.
- a low power motor 10 can be used, which reduces its mass, its size and its cost.
- FIG. 3 presents a first function representing the cabin management computer 12, receiving the information from the temperature sensor 18.
- the cabin management computer 12 produces a cabin temperature information T °, and by monitoring its value and its evolution delivers to the column control computer 16 an authorization O or a prohibition N retracting 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 while avoiding the need for maneuvers that are too fast, which makes it possible to limit its size, its mass and its cost.
- an existing temperature sensor is used for other functions.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1762315A FR3075149B1 (fr) | 2017-12-18 | 2017-12-18 | Direction avec colonne de direction retractable suivant la temperature pour conduite autonome |
| PCT/FR2018/052781 WO2019122549A1 (fr) | 2017-12-18 | 2018-11-09 | Direction avec colonne de direction retractable suivant la température pour conduite autonome |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3727996A1 true EP3727996A1 (fr) | 2020-10-28 |
Family
ID=61521655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18867327.1A Withdrawn EP3727996A1 (fr) | 2017-12-18 | 2018-11-09 | Direction avec colonne de direction retractable suivant la température pour conduite autonome |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3727996A1 (fr) |
| FR (1) | FR3075149B1 (fr) |
| WO (1) | WO2019122549A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119262047B (zh) * | 2024-10-22 | 2025-10-17 | 岚图汽车科技有限公司 | 一种电动调节转向管柱控制方法、装置、设备和介质 |
| CN119840702B (zh) * | 2025-01-06 | 2025-10-31 | 奇瑞汽车股份有限公司 | 电动调节管柱的控制方法、装置及存储介质 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005011236U1 (de) * | 2005-07-16 | 2006-11-23 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg | Steuerungsvorrichtung einer Verstelleinrichtung eines Kraftfahrzeugs |
| 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 FR1762315A patent/FR3075149B1/fr active Active
-
2018
- 2018-11-09 EP EP18867327.1A patent/EP3727996A1/fr not_active Withdrawn
- 2018-11-09 WO PCT/FR2018/052781 patent/WO2019122549A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019122549A1 (fr) | 2019-06-27 |
| FR3075149B1 (fr) | 2019-11-08 |
| FR3075149A1 (fr) | 2019-06-21 |
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