WO2022023656A1 - Procédé de freinage magnétique d'une colonne de direction inclus dans un système de direction d'un véhicule - Google Patents
Procédé de freinage magnétique d'une colonne de direction inclus dans un système de direction d'un véhicule Download PDFInfo
- Publication number
- WO2022023656A1 WO2022023656A1 PCT/FR2021/051387 FR2021051387W WO2022023656A1 WO 2022023656 A1 WO2022023656 A1 WO 2022023656A1 FR 2021051387 W FR2021051387 W FR 2021051387W WO 2022023656 A1 WO2022023656 A1 WO 2022023656A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steering
- electric motor
- vehicle
- force feedback
- feedback module
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000003068 static effect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
- H02P3/22—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by short-circuit or resistive braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/001—Mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup
- B62D5/005—Mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup means for generating torque on steering wheel or input member, e.g. feedback
- B62D5/006—Mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup means for generating torque on steering wheel or input member, e.g. feedback power actuated
Definitions
- TITLE Method for magnetic braking of a steering column included in a steering system of a vehicle
- the present invention relates to a method of magnetic braking of a steering column included in a steering system of a vehicle.
- the present invention is particularly suited to the automotive industry.
- the traditional steering column is replaced by electrical connections capable of transmitting commands generated from the rotation of the steering wheel, to actuators, generally electrical, which ensure control of the steering angle of the steered wheels.
- This force feedback module thus simulates the forces that would be felt with a conventional mechanical steering system.
- the steering column connected to the steering wheel can pivot freely, however, while being limited, however, by angular mechanical stops intended to protect in particular the electrical harnesses of the steering wheel generally arranged on either side of the steering column.
- the steering control system of the Steer-by-Wire type makes it possible in particular to move towards the development of vehicles with autonomous driving phases, that is to say driving phases during which the driver is relieved of any action on the steering wheel.
- the traditional steering column is generally equipped with a “Neiman” type anti-theft device.
- the anti-theft function can be stress-induced lifted by the wheels.
- This anti-theft device or function has the main function of preventing or slowing down vehicle theft by blocking the steering system when the vehicle's ignition is off.
- This anti-theft device or feature has the side effect of making it easier to install and uninstall the driver.
- the steering wheel acts as a handle so that the driver can lean on it to enter and exit the vehicle.
- the anti-theft device is removed since the anti-theft function is ensured by the fact that there is no longer any mechanical link between the steering wheel and the wheels. Thus, when the ignition is switched off, it is not possible to turn the vehicle using the steering wheel. Furthermore, the absence of the anti-theft device allows a gain in volume of the force feedback module.
- the installation and removal of the driver are no longer facilitated and the angular mechanical stops arranged on either side of the steering column are no longer protected.
- the steering wheel is no longer locked. If the driver leans on the steering wheel, it is likely to turn, creating a risk of injury to the driver. Furthermore, if the steering wheel is turned too quickly, the angular mechanical stops will be struck violently and be damaged.
- the object of the invention is to remedy the aforementioned drawbacks by proposing a steering system of the Steer-by-Wire type facilitating the installation and uninstallation of the driver in the vehicle and protecting the angular mechanical stops on either side of the steering column.
- the subject of the present invention is a method of magnetic braking of a steering column included in a steering system of a vehicle for facilitate the installation and removal of the driver in the vehicle and protect angular mechanical stops arranged on either side of the steering column, said vehicle comprising a vehicle engine, said steering system comprising at least:
- a force feedback module fixed to the steering column, said force feedback module comprising an electric motor, a reduction gear and a torque and/or angle sensor,
- Said method comprising magnetic braking of the steering column connected to the steering wheel applied by the electric motor of the force feedback module when said electric motor of the force feedback module is not powered.
- the method according to the invention allows magnetic braking of the steering column connected to the steering wheel when the electric motor of the force feedback module is not electrically powered.
- the electric motor of the force feedback module changes from an active to inactive state, that is to say from a powered to unpowered state, for example a short-circuit is made between the phases of the motor generating the magnetic braking of the steering column.
- the magnetic braking of the steering column linked to the steering wheel allows the driver to lean on the steering wheel to get in and out of the vehicle.
- the steering wheel acts as a handle and facilitates entry and exit of the vehicle.
- the method according to the invention makes it possible to protect the angular mechanical stops arranged at the end of the angular stroke.
- the magnetic braking carried out in the electric motor of the force feedback module has the advantage of being neutral in terms of vehicle energy consumption, of not adding additional mass to the steering column and of not increase the size of the steering column.
- the magnetic braking is achieved through a switching device present in the electric motor of the force feedback module.
- the magnetic braking is achieved by a short circuit created in the electric motor of the force feedback module.
- the switching device creates the short circuit in the electric motor of the force feedback module.
- the electric motor comprises three phases.
- the short-circuit can be three-phase, that is to say carried out on the three phases, or two-phase, that is to say carried out on two phases.
- the switching device may comprise an electromechanical relay capable of creating the short circuit.
- electromechanical relay is meant a device making it possible to establish or interrupt the continuity of an electrical circuit, by switching contacts.
- the switching device comprises a static relay capable of creating the short circuit.
- static relay is meant a device making it possible to switch an electric current without recourse to mechanical or electromechanical elements.
- a static relay is preferably composed of an assembly of electronic components, in particular semiconductors.
- the static relay can be MOSFET technology.
- the switching device includes resistors.
- the electric motor of the force feedback module is connected to the steering column through the reducer. In this embodiment, the braking torque is multiplied.
- the electric motor of the force feedback module is with permanent magnets of the synchronous or direct current type.
- the steering device comprises steering control means of the steered wheels of the vehicle.
- these steering means are controlled by an electronic control unit (ECU) of the vehicle or by the position of the steering wheel induced by the driver.
- ECU electronice control unit
- the vehicle steering means comprise a rack connected to the steered wheels of the vehicle and an actuator fixed to the rack, said actuator making it possible to move the rack.
- FIG. 1 is a steering system according to the invention
- FIG. 2 is a diagram illustrating an electric motor of the force feedback module according to the invention
- FIG. 3 is an embodiment of an electric motor of the force feedback module according to the invention.
- FIG. 4 is another embodiment of an electric motor of the force feedback module according to the invention.
- Figure 1 illustrates a steering system 1 of a vehicle (not shown), said vehicle comprising a vehicle engine (not shown).
- the steering system 1 may comprise a rack 2, a steering motor 3 which acts on a rack so as to pivot on the directional wheels (not shown) of the vehicle, a steering column 4 connected to a steering wheel 5, stops angular mechanisms (not shown) arranged on either side of the steering column 4.
- the steering system 1 may comprise a force feedback module 6 fixed to the steering column 4, said force feedback module force comprising an electric motor 7, a reducer 8 and a torque and/or angle sensor (not shown).
- the force feedback module 6 comprises a controller 10 connected to the electric motor 7.
- the vehicle may also include a CAN bus 12.
- This network 12 includes the electrical wiring 13 of the vehicle configured to establish an electrical connection and communication between the electric motor 7 of the force feedback module 6, the controller and various components of the vehicle.
- Wiring harness 13 can generally be connected to the vehicle's ECU 11.
- Figure 2 illustrates an example in which the controller 10 includes a nominal controller 10a. Furthermore, the force feedback module 6 comprises a switching device 22 and a power supply 25.
- the controller 10 controls the electric motor 7.
- the nominal control device 10a drives the electric motor 7 for example by dynamic control of the electromagnetic torque.
- This type of device generally consists of a single-phase or multi-phase inverter through which an electric current passes.
- the controller 10 is not powered, that is to say when the electric motor 7 is inactive, the electric motor is automatically short-circuited, for example by means of a switching device 22 so as to generate a braking torque when motor 7 is rotating.
- the braking torque makes it possible to significantly slow down the speed of the steering wheel when a user acts on the steering wheel to get into or to get out of a vehicle.
- the angular mechanical stops are protected and the driver can lean on the vehicle's steering wheel to get in and out of the vehicle.
- Figure 3 illustrates an electric motor 7 which can for example be made in the form of a permanent magnet motor with or without a brush.
- the electric motor 7 therefore comprises three electrical connections U, V, W each connected, inside the electric motor 7 to one of the windings of this electric motor 7.
- the connections U, V, W are connected by connecting lines 20a, 20b, 20c corresponding to inputs 21a, 21b, 21c of a switching device 22 with three poles.
- This switching device 22 has first outputs 23a, 23b, 23c and second outputs 26a, 26b, 26c of the switching device 22.
- the second outputs 26a, 26b, 26c are each connected to a star connection point 27 and form this makes a star branch circuit.
- the switching device 22 comprises a coil B1 connected to an electric power supply 25 of the electric motor 7 so that a voltage is applied to the coil so as to obtain a static relay.
- the static relay is MOSFET technology.
- Switching device 22 may comprise switching means 28 operable synchronously by coil B1 which, in a first switching position shown in FIG. 3, connect inputs 21a, 21b, 21c to first outputs 23a, 23b, 23c . In a second switching position, the switching means 22 connect the inputs 21a, 21b, 21c to the second outputs 26a, 26b, 26c.
- the switching means 22 connect the inputs 21a, 21b, 21c to the second outputs 26a, 26b, 26c.
- a short circuit is created.
- the inputs 21a, 21b, 21c will be connected to the first outputs 23a, 23b, 23c.
- the switching means 28 of the switching device 22 are in their first switching position if the motor 7 of the force feedback 6 is powered. If the electric motor 7 of the force feedback module 6 is not powered, the switching means 28 of the switching device 22 are switched to their second switching position.
- the electric motor may also include a control module 30 consisting of a transistor bridge comprising inputs numbered from 1 to 6 and a capacitor 31.
- An electronic control circuit 40 (also called “gate driver unit” in English) makes the interface between a microcontroller 50 and the control module 30.
- the electronic control circuit 40 can be connected to outputs numbered 1 to 6 of the control module 30.
- the electronic control circuit 40 is for example connected to the power supply 25 of the electric motor 7 via a coil B2 .
- FIG. 4 illustrates the electric motor 7 of the force feedback module 6 according to another embodiment in which the second outputs 26a, 26b, 26c of the switching device 22 are each connected, by electrical resistors 29a, 29b, 29c, to a star connection point 27 and thereby form a star connection circuit.
- the electric motor 7 of the force feedback module 6 is inactive.
- the switching means 28 of the switching device 22 are switched to their second switching position creating a short circuit.
- the installation and removal of the driver in the vehicle is thus facilitated because a resistant torque is created when the driver acts on the steering wheel, in particular during its installation and removal in a vehicle and the angular mechanical stops of the steering column are protected .
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Power Steering Mechanism (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
- Steering Controls (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/018,305 US20240039432A1 (en) | 2020-07-28 | 2021-07-23 | Method for magnetic braking of a steering column included in a steering system of a vehicle |
JP2023504650A JP2023535205A (ja) | 2020-07-28 | 2021-07-23 | 車両のステアリングシステムに含まれるステアリングコラムの磁気制動方法 |
CN202180059553.2A CN116133928A (zh) | 2020-07-28 | 2021-07-23 | 用于对被包括在车辆的转向系统中的转向柱进行磁性制动的方法 |
DE112021003998.9T DE112021003998T5 (de) | 2020-07-28 | 2021-07-23 | Verfahren zum magnetischen bremsen einer in einem lenksystem eines fahrzeugs vorgesehenen lenksäule |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR2007962 | 2020-07-28 | ||
FR2007962A FR3113024B1 (fr) | 2020-07-28 | 2020-07-28 | Procédé de freinage magnétique d’une colonne de direction inclus dans un système de direction d’un véhicule |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022023656A1 true WO2022023656A1 (fr) | 2022-02-03 |
Family
ID=73013675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2021/051387 WO2022023656A1 (fr) | 2020-07-28 | 2021-07-23 | Procédé de freinage magnétique d'une colonne de direction inclus dans un système de direction d'un véhicule |
Country Status (6)
Country | Link |
---|---|
US (1) | US20240039432A1 (fr) |
JP (1) | JP2023535205A (fr) |
CN (1) | CN116133928A (fr) |
DE (1) | DE112021003998T5 (fr) |
FR (1) | FR3113024B1 (fr) |
WO (1) | WO2022023656A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2808489A1 (fr) * | 2000-05-04 | 2001-11-09 | Daimler Chrysler Ag | Systeme de direction pour un vehicule automobile |
EP2033833A2 (fr) * | 2007-09-04 | 2009-03-11 | ALSTOM Transport SA | Dispositif de freinage électrique sécuritaire avec moteur à aimants permanents et régulation du couple de freinage |
JP2009090686A (ja) * | 2007-10-03 | 2009-04-30 | Tokai Rika Co Ltd | 車両の操舵装置 |
DE102010028101A1 (de) * | 2010-04-22 | 2011-10-27 | Zf Lenksysteme Gmbh | Verfahren zum Blockieren eines Lenksystems |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4184861B2 (ja) * | 2003-04-17 | 2008-11-19 | 株式会社東海理化電機製作所 | バイワイヤ方式操舵装置のロック装置 |
JP2004330840A (ja) * | 2003-05-06 | 2004-11-25 | Toyoda Mach Works Ltd | ステアバイワイヤ式ステアリングシステム |
DE102004041869A1 (de) * | 2004-08-27 | 2006-03-02 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Elektronische Lenkungsverriegelung |
JP2013086701A (ja) * | 2011-10-20 | 2013-05-13 | Suzuki Motor Corp | ステアリングロック装置 |
-
2020
- 2020-07-28 FR FR2007962A patent/FR3113024B1/fr active Active
-
2021
- 2021-07-23 WO PCT/FR2021/051387 patent/WO2022023656A1/fr active Application Filing
- 2021-07-23 DE DE112021003998.9T patent/DE112021003998T5/de active Pending
- 2021-07-23 US US18/018,305 patent/US20240039432A1/en active Pending
- 2021-07-23 CN CN202180059553.2A patent/CN116133928A/zh active Pending
- 2021-07-23 JP JP2023504650A patent/JP2023535205A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2808489A1 (fr) * | 2000-05-04 | 2001-11-09 | Daimler Chrysler Ag | Systeme de direction pour un vehicule automobile |
DE10021814A1 (de) * | 2000-05-04 | 2001-11-15 | Daimler Chrysler Ag | Lenksystem für ein Kraftfahrzeug |
EP2033833A2 (fr) * | 2007-09-04 | 2009-03-11 | ALSTOM Transport SA | Dispositif de freinage électrique sécuritaire avec moteur à aimants permanents et régulation du couple de freinage |
JP2009090686A (ja) * | 2007-10-03 | 2009-04-30 | Tokai Rika Co Ltd | 車両の操舵装置 |
DE102010028101A1 (de) * | 2010-04-22 | 2011-10-27 | Zf Lenksysteme Gmbh | Verfahren zum Blockieren eines Lenksystems |
Also Published As
Publication number | Publication date |
---|---|
FR3113024B1 (fr) | 2022-08-26 |
CN116133928A (zh) | 2023-05-16 |
DE112021003998T5 (de) | 2023-06-22 |
JP2023535205A (ja) | 2023-08-16 |
US20240039432A1 (en) | 2024-02-01 |
FR3113024A1 (fr) | 2022-02-04 |
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