CN112477802A - Electronic steering column lock - Google Patents
Electronic steering column lock Download PDFInfo
- Publication number
- CN112477802A CN112477802A CN202011475737.0A CN202011475737A CN112477802A CN 112477802 A CN112477802 A CN 112477802A CN 202011475737 A CN202011475737 A CN 202011475737A CN 112477802 A CN112477802 A CN 112477802A
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- Prior art keywords
- steering column
- electronic steering
- column lock
- unit
- execution unit
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- 230000009471 action Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000033001 locomotion Effects 0.000 claims description 14
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
- B60R25/02—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism
- B60R25/021—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch
- B60R25/0215—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch using electric means, e.g. electric motors or solenoids
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses an electronic steering column lock, comprising: the driving unit is used for providing power for the execution unit; the execution unit is used for transmitting power and executing unlocking and locking actions; the control unit is used for sending and receiving a working instruction and controlling the on-off of the execution unit; the fixing unit is used for supporting and locking the electronic steering column lock to enable the electronic steering column lock and the steering column to be fixedly connected into a whole; the control unit is electrically connected with the execution unit and the driving unit. According to the invention, the transmission of locking and unlocking, the triggering of locking and unlocking detection and the safety function of the lock tongue can be realized only by a single part gear, a screw rod and a nut rotating structure, so that the number of parts, the material cost and the assembly cost are reduced to the greatest extent, the number of parts is reduced, the system is simplified, and the reliability is further improved.
Description
Technical Field
The invention relates to the technical field of automotive electronics, in particular to an electronic steering column lock.
Background
An Electronic Steering Column Lock (ESCL) is part of a vehicle anti-theft system for keyless entry, locking and unlocking the Steering wheel in the starting system. The locking and unlocking actions of the ESCL are realized by controlling the action of a motor in the ESCL, and because the electronic locking and unlocking mechanism is electronic, the engine of an automobile does not need to be unlocked and unlocked by rotating a switch like a mechanical lock, and the corresponding locking and unlocking actions can be executed by a bolt system after the condition required by the locking and unlocking is monitored by an electronic steering column lock is met, so that the safety of the automobile is protected, and great convenience is provided for users. Its safety objective is to prevent the car from being accidentally locked while driving. To ensure that ISO26262 safety level ASIL-B is reached. Furthermore, the requirements of different countries and regions (such as GB15740, ECER116, etc.) need to be met.
Existing electronic steering column lock solutions all suffer from the following disadvantages: the number of parts is large, the material cost is high, the assembly operation is complex, and the assembly cost is high. The internal structure of the product is complex, and the reliability is difficult to guarantee. It is difficult to reduce the volume and the weight. Therefore, the requirements of low cost, miniaturization and light weight of customers cannot be met.
Disclosure of Invention
Accordingly, it is an object of the present invention to provide an electronic steering column lock.
The purpose of the invention is realized by the following technical scheme:
an electronic steering column lock comprising:
the driving unit is used for providing power for the execution unit;
the execution unit is used for transmitting power and executing unlocking and locking actions;
the control unit is used for sending and receiving a working instruction and controlling the on-off of the execution unit;
the fixing unit is used for supporting and locking the electronic steering column lock to enable the electronic steering column lock and the steering column to be fixedly connected into a whole;
the control unit is electrically connected with the execution unit and the driving unit.
Further, the driving unit is a micro motor.
Further, the execution unit includes:
the transmission gear is used for transmitting the power output by the micro motor;
the screw rod and nut rotating structure is used for converting curvilinear motion into linear motion;
a bolt moving structure; the spring bolt motion structure includes and sits piece, spring and spring bolt, sits piece and casing fixed connection, sits the piece middle part be equipped with the hole that turns to the post spline intercommunication, spring and spring bolt pass the hole that sits the piece middle part, insert or withdraw from the steering column spline through the spring bolt, realize unblock, the shutting to the steering column.
Furthermore, the control unit comprises a microprocessor, a driving chip, a Hall sensor and an LIN chip, wherein the Hall sensor is used for sensing the movement position of the lock tongue.
Further, the fixing unit includes a hoop, an antitheft screw, and a housing circumferential portion.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
only need through single part gear, lead screw and nut revolution mechanic, just can realize the transmission of locking unblock, the triggering of locking unblock detection to and the insurance function to the spring bolt, the quantity of furthest having reduced the part, material cost and assembly cost, part quantity reduces, and the system is simplified, and the reliability also further improves.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
The drawings of the present invention are described below.
FIG. 1 is an electrical schematic diagram of the electronic steering column lock of the present invention;
FIG. 2 is a three-dimensional schematic view of an electronic steering column lock driving unit and an execution unit according to the present invention;
FIG. 3 is a perspective view of the electric steering column lock drive unit and the actuator unit of the present invention;
FIG. 4 is a cross-sectional view of an electronic steering column lock drive unit and an actuator unit of the present invention;
fig. 5 is a schematic view of the electronic steering column of the present invention in a locked state.
Detailed Description
In order to make the technical solutions, advantages and objects of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the present application.
The invention is further illustrated by the following figures and examples.
Example 1
As shown in fig. 1 to 3, the present embodiment provides an electronic steering column lock, which includes:
the driving unit is used for providing power for the execution unit;
the execution unit is used for transmitting power and executing unlocking and locking actions;
the control unit is used for sending and receiving a working instruction and controlling the on-off of the execution unit;
the fixing unit is used for supporting and locking the electronic steering column lock to enable the electronic steering column lock and the steering column to be fixedly connected into a whole;
the control unit is electrically connected with the execution unit and the driving unit.
Further, the driving unit is a micro motor 7.
Further, the execution unit includes:
the transmission gear 5 is used for transmitting power output by the micro motor 7; the transmission gear 5 is meshed with a worm 9 of the motor 7, has a self-locking function, and can prevent sudden locking in the unlocking state.
The screw rod and nut rotating structure is used for converting curvilinear motion into linear motion; the engagement of the screw rod 6 and the nut 8 has a self-locking function, and can prevent the direction from being locked suddenly in an unlocking state.
A bolt moving structure; the spring bolt motion structure includes seat piece, lead screw 6, lead screw spring 4, spring bolt 1, spring bolt spring 2 and nestification is at the inside permanent magnet 3 of spring bolt 1, and seat piece and casing fixed connection, seat piece middle part be equipped with the hole that turns to the post spline intercommunication, spring bolt spring 2 and spring bolt 1 pass the hole at seat piece middle part, insert or withdraw from the post spline through spring bolt 1, realize unblock, the shutting to the steering column.
The rotation of the nut drives the lock tongue 1 to move, and the lead screw spring 4 ensures that the moving direction of the lock tongue 1 cannot move; in the movement process of the bolt 1, the bolt spring 2 can ensure the effective ejection of the bolt 1.
Further, the control unit comprises a microprocessor, a driving chip, a Hall sensor and an LIN chip, wherein the Hall sensor is used for sensing the movement position of the lock tongue 1; and a Hall sensor is arranged on a PCB of the control unit and is used for sensing the magnetic field change of the permanent magnet 3 caused by the movement of the lock tongue 1. When the lock tongue moves downwards and locks the steering column, the Hall sensor senses the change of the magnetic field of the permanent magnet 3 and then sends a locking signal. When the unlocking is needed, the lock tongue moves upwards, the unlocking steering is carried out, and the Hall sensor sends an unlocking signal after sensing the magnetic field change of the permanent magnet 3, so that the locking state of the steering column is judged.
Further, the fixing unit includes a hoop, an antitheft screw, and a housing circumferential portion.
According to the embodiment, the transmission of locking and unlocking, the triggering of locking and unlocking detection and the safety function of a lock tongue can be realized only by a single part gear, a screw rod and a nut rotating structure, so that the number of parts, the material cost and the assembly cost are reduced to the greatest extent, the number of parts is reduced, the system is simplified, and the reliability is further improved; meanwhile, the screw rod and the gear have a self-locking function, the direction of sudden locking under the unlocking state can be prevented, and the safety function is achieved.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered in the protection scope of the present invention.
Claims (5)
1. An electronic steering column lock, comprising:
the driving unit is used for providing power for the execution unit;
the execution unit is used for transmitting power and executing unlocking and locking actions;
the control unit is used for sending and receiving a working instruction and controlling the on-off of the execution unit;
the fixing unit is used for supporting and locking the electronic steering column lock to enable the electronic steering column lock and the steering column to be fixedly connected into a whole;
the control unit is electrically connected with the execution unit and the driving unit.
2. The electronic steering column lock of claim 1, wherein: the driving unit is a micro motor.
3. The electronic steering column lock of claim 2, wherein: the execution unit includes:
the transmission gear is used for transmitting the power output by the micro motor;
the screw rod and nut rotating structure is used for converting curvilinear motion into linear motion;
a bolt moving structure; the spring bolt motion structure includes and sits piece, spring and spring bolt, sits piece and casing fixed connection, sits the piece middle part be equipped with the hole that turns to the post spline intercommunication, spring and spring bolt pass the hole that sits the piece middle part, insert or withdraw from the steering column spline through the spring bolt, realize unblock, the shutting to the steering column.
4. The electronic steering column lock of claim 1, wherein: the control unit comprises a microprocessor, a driving chip, a Hall sensor and an LIN chip, wherein the Hall sensor is used for sensing the movement position of the lock tongue.
5. The electronic steering column lock of claim 1, wherein: the fixing unit comprises a hoop, an anti-theft screw and a shell circumferential part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011475737.0A CN112477802A (en) | 2020-12-15 | 2020-12-15 | Electronic steering column lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011475737.0A CN112477802A (en) | 2020-12-15 | 2020-12-15 | Electronic steering column lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112477802A true CN112477802A (en) | 2021-03-12 |
Family
ID=74916985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011475737.0A Pending CN112477802A (en) | 2020-12-15 | 2020-12-15 | Electronic steering column lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112477802A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6952059B1 (en) * | 1999-07-28 | 2005-10-04 | Renault-Valeo Securite Habitacle | System and method for locking a vehicle steering |
| CN1727229A (en) * | 2004-07-29 | 2006-02-01 | 株式会社东海理化电机制作所 | Steering lock |
| JP2006273152A (en) * | 2005-03-29 | 2006-10-12 | Tokai Rika Co Ltd | Electronic steering lock device |
| US20110190983A1 (en) * | 2008-03-10 | 2011-08-04 | Huf Hulsbeck & Furst Gmbh & Co. Kg | Method and device for controlling a blocking member |
| CN103010157A (en) * | 2013-01-07 | 2013-04-03 | 重庆集诚汽车电子有限责任公司 | Control method of electronic steering column lock |
| US20140150503A1 (en) * | 2012-12-03 | 2014-06-05 | Hyundai Motor Company | Electrical steering column lock |
| CN204236421U (en) * | 2013-10-25 | 2015-04-01 | 上海纳恩汽车技术有限公司 | A kind of control system of detected electrons lock for steering column dead bolt |
| CN104554140A (en) * | 2014-12-24 | 2015-04-29 | 天合汽车零部件（苏州）有限公司 | Electronic steering column lock |
| CN104973009A (en) * | 2014-04-14 | 2015-10-14 | 江苏浩昱驰汽车电子有限公司 | Method for controlling electronic steering column lock |
-
2020
- 2020-12-15 CN CN202011475737.0A patent/CN112477802A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6952059B1 (en) * | 1999-07-28 | 2005-10-04 | Renault-Valeo Securite Habitacle | System and method for locking a vehicle steering |
| CN1727229A (en) * | 2004-07-29 | 2006-02-01 | 株式会社东海理化电机制作所 | Steering lock |
| JP2006273152A (en) * | 2005-03-29 | 2006-10-12 | Tokai Rika Co Ltd | Electronic steering lock device |
| US20110190983A1 (en) * | 2008-03-10 | 2011-08-04 | Huf Hulsbeck & Furst Gmbh & Co. Kg | Method and device for controlling a blocking member |
| US20140150503A1 (en) * | 2012-12-03 | 2014-06-05 | Hyundai Motor Company | Electrical steering column lock |
| CN103010157A (en) * | 2013-01-07 | 2013-04-03 | 重庆集诚汽车电子有限责任公司 | Control method of electronic steering column lock |
| CN204236421U (en) * | 2013-10-25 | 2015-04-01 | 上海纳恩汽车技术有限公司 | A kind of control system of detected electrons lock for steering column dead bolt |
| CN104973009A (en) * | 2014-04-14 | 2015-10-14 | 江苏浩昱驰汽车电子有限公司 | Method for controlling electronic steering column lock |
| CN104554140A (en) * | 2014-12-24 | 2015-04-29 | 天合汽车零部件（苏州）有限公司 | Electronic steering column lock |
Non-Patent Citations (1)
| Title |
|---|
| 宝成等编: "《机械工人技术培训教材 工具钳工工艺学》", 31 October 1984, 科学普及出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210312 |
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| RJ01 | Rejection of invention patent application after publication |