CN111776060A - Control system and control method for adaptive crushing of steering column in automobile collision - Google Patents

Control system and control method for adaptive crushing of steering column in automobile collision Download PDF

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Publication number
CN111776060A
CN111776060A CN202010521860.5A CN202010521860A CN111776060A CN 111776060 A CN111776060 A CN 111776060A CN 202010521860 A CN202010521860 A CN 202010521860A CN 111776060 A CN111776060 A CN 111776060A
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CN
China
Prior art keywords
steering column
crushing
collapse
control unit
force sensor
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.)
Pending
Application number
CN202010521860.5A
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Chinese (zh)
Inventor
郝玉敏
王东辉
鞠伟
彭洪梅
胡海波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FAW Group Corp
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FAW Group Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FAW Group Corp filed Critical FAW Group Corp
Priority to CN202010521860.5A priority Critical patent/CN111776060A/en
Publication of CN111776060A publication Critical patent/CN111776060A/en
Pending legal-status Critical Current

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    • 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
    • B62D1/19—Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
    • B62D1/192—Yieldable or collapsible columns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle

Abstract

The invention discloses a control system for steering column self-adaptive crushing in automobile collision, which comprises an air bag controller, a whole automobile data communication bus, a steering column crushing control unit, a steering column crushing force sensor, a steering column crushing motor and a steering column, wherein the air bag controller is connected with the whole automobile data communication bus; the safety air bag controller is in communication connection with the whole vehicle data communication bus and the steering column collapse control unit; the steering column crushing control unit is in communication connection with the whole vehicle data communication bus 1, the safety air bag controller and the steering column crushing force sensor, and the steering column crushing control unit 5 is simultaneously electrically connected with the steering column crushing motor; the steering column crushing motor is connected with the inner column of the steering column; the steering column crushing force sensor is connected with the inner wall of the steering column sleeve. The invention also discloses a control method of the steering column self-adaptive crushing control system in the automobile collision.

Description

Control system and control method for adaptive crushing of steering column in automobile collision
Technical Field
The invention belongs to the technical field of control of automobile steering systems, relates to a steering column crushing control system, and particularly relates to a steering column self-adaptive crushing control system and a control method thereof in automobile collision.
Background
The steering column is an element for connecting a steering wheel and a steering gear of a steering system, and a driver transmits torque to the steering gear through the steering column to drive the steering gear to realize steering.
At present, when a traffic accident occurs to an automobile, the crushing mode of a steering column is passive crushing in the collision process, and the crushing force is fluctuated severely under the influence of surrounding parts and arrangement modes, so that the passenger protection effect is reduced.
Patent document 1 discloses an automobile steering column with an energy absorbing device, which further comprises the energy absorbing device, wherein the energy absorbing device comprises a crumpling groove arranged on the outer wall of the column, a first pressing plate is embedded in the crumpling groove, and the first pressing plate and the crumpling groove can slide relatively; the energy absorption device further comprises a second pressing plate, and the second pressing plate presses on the first pressing plate to fix the first pressing plate. According to the automobile steering column with the energy absorption device, the crumple groove and the first pressing plate embedded in the crumple groove are arranged on the outer wall of the pipe column, when the pipe column is crushed, the first pressing plate can overcome the friction force between the first pressing plate and the crumple groove to slide, so that collision energy is absorbed, and the proper crumple force of the steering column is guaranteed.
Patent document 2 discloses an automobile steering column with sectional type column pipe, the column pipe includes front end column pipe, rear end column pipe and adapter sleeve, the adapter sleeve is established and is fixed the inner wall of front end column pipe, the rear end column pipe cover is established and is fixed the inner wall of adapter sleeve. The automobile steering column with the sectional column tube is provided with the front end column tube and the rear end column tube, the front end column tube and the rear end column tube are connected through the connecting sleeve, when an automobile collides, the front end column tube and the connecting sleeve can move towards the direction of the rear end column tube, and the friction force between the connecting sleeve and the rear end column tube prevents collapse, so that the energy absorption effect is achieved.
Patent document 1 alleviates the pressure of steering column through the energy-absorbing device, and patent document 2 reaches the effect of energy-absorbing through the frictional force of sectional type column pipe, and two technical scheme are all to reforming transform the steering column structure, and it is with high costs to reform transform, and is more complicated for original steering column structure, only can offset partly crushing force moreover, but can not detect the crushing force, and then pertinence carries out crushing self-adaptation control to the steering column.
Disclosure of Invention
The invention provides a control system for self-adaptive crushing of a steering column in automobile collision, which aims to solve the problem that the crushing mode of the steering column is passive crushing and the crushing force fluctuation is severe due to the influence of surrounding parts and arrangement modes in the automobile collision process.
The purpose of the invention is realized by the following technical scheme:
a control system for self-adaptive crushing of a steering column in automobile collision comprises an air bag safety controller, a whole automobile data communication bus, a steering column crushing control unit, a steering column crushing force sensor, a steering column crushing motor and a steering column;
the safety air bag controller is in communication connection with the whole vehicle data communication bus and the steering column collapse control unit;
the steering column crushing control unit is in communication connection with the whole vehicle data communication bus, the safety air bag controller and the steering column crushing force sensor, and is simultaneously electrically connected with the steering column crushing motor;
the steering column crushing motor is connected with the steering column inner column connecting piece and the steering column inner column through the steering column crushing motor;
the steering column inner column is arranged in the steering column sleeve;
the steering column crushing force sensor is connected with the inner wall of the steering column sleeve through a connecting line of the steering column crushing force sensor.
Further, the safety airbag controller unit sends a safety system ignition instruction to the whole vehicle data communication bus and the steering column crushing control unit respectively.
Further, the steering column crushing control unit acquires detection data of the steering column crushing force sensor after receiving a safety system ignition instruction of the full-airbag controller, and adjusts the steering column crushing motor in real time according to the detection data of the steering column crushing force sensor.
Furthermore, when the crushing force detected by the crushing force sensor of the steering column is greater than a preset upper limit value, the crushing control unit of the steering column controls the crushing motor of the steering column to rotate forwards to provide tension; when the crushing force detected by the crushing force sensor of the steering column is smaller than the preset lower limit value, the crushing control unit of the steering column controls the crushing motor of the steering column to rotate reversely to provide thrust.
The invention also provides a control method of the steering column self-adaptive crushing control system in the automobile collision, which comprises the following steps:
firstly, when an automobile is collided, an air bag safety controller unit respectively sends a safety system ignition instruction to a whole automobile data communication bus and a steering column crushing control unit;
secondly, the steering column crushing control unit receives a safety system ignition instruction of the safety air bag controller and starts the control system;
thirdly, the steering column crushing control unit receives the detection data of the steering column crushing force sensor and compares the crushing force detected by the steering column crushing force sensor with a preset upper limit value;
step four, when the crushing force detected by the crushing force sensor of the steering column is greater than a preset upper limit value, the crushing control unit of the steering column controls the crushing motor of the steering column to rotate forwards, so as to provide tension and reduce the crushing force of the steering column; when the crushing force detected by the steering column crushing force sensor is smaller than a preset lower limit value, the steering column crushing control unit controls the steering column crushing motor to rotate reversely, so that thrust is provided, and the crushing force of the steering column is improved.
The invention has the following beneficial effects:
the self-adaptive crushing control of the steering column is carried out by integrating the safety airbag controller and the crushing force signal of the steering column;
the invention carries out positive and negative pressure crushing force compensation on the crushing of the steering column through the steering column crushing motor;
the invention innovates the uncontrollable crushing of the steering column in collision, detects the crushing force of the steering column by receiving ACU signals, controls the crushing motor of the steering column by the crushing control unit of the steering column, performs self-adaptive control on the crushing of the steering column, and performs positive and negative compensation of the crushing force, so that the crushing of the steering column is stable and controllable.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic diagram of the principle of the control system for adaptive collapse of a steering column in an automobile collision according to the present invention.
In the figure:
1-vehicle data communication bus; 2-an airbag controller; 3-a steering column sleeve; 4-a steering column inner column; 5-a steering column crushing control unit; 6-steering column crushing motor; 7-a steering column crushing motor and a steering column inner column connecting piece; 8-connecting lines of the steering column crushing force sensors; 9-steering column crushing force sensor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.
Example 1
A control system for self-adaptive crushing of a steering column in automobile collision comprises an air bag controller 2, a whole automobile data communication bus 1, a steering column crushing control unit 5, a steering column crushing force sensor 9, a steering column crushing motor 6 and a steering column;
the safety air bag controller 2 is in communication connection with the whole vehicle data communication bus 1 and the steering column crushing control unit 5;
the steering column crushing control unit 5 is in communication connection with the whole vehicle data communication bus 1, the safety air bag controller 2 and the steering column crushing force sensor 9, and the steering column crushing control unit 5 is simultaneously electrically connected with the steering column crushing motor 6;
the steering column crushing motor 6 is connected with the steering column inner column connecting piece 7 and the steering column inner column 4 through the steering column crushing motor;
the steering column inner column 4 is installed in the steering column sleeve 3;
the steering column crushing force sensor 9 is connected with the inner wall of the steering column sleeve 3 through a steering column crushing force sensor connecting wire 8.
Further, the safety airbag controller unit sends a safety system ignition instruction to the whole vehicle data communication bus and the steering column crushing control unit respectively.
Further, the steering column crushing control unit acquires detection data of the steering column crushing force sensor after receiving a safety system ignition instruction of the full-airbag controller, and adjusts the steering column crushing motor in real time according to the detection data of the steering column crushing force sensor.
Furthermore, when the crushing force detected by the crushing force sensor of the steering column is greater than a preset upper limit value, the crushing control unit of the steering column controls the crushing motor of the steering column to rotate forwards to provide tension; when the crushing force detected by the crushing force sensor of the steering column is smaller than the preset lower limit value, the crushing control unit of the steering column controls the crushing motor of the steering column to rotate reversely to provide thrust.
The working principle of the invention is briefly described as follows:
when the automobile collides, the safety airbag controller unit sends a safety system ignition instruction which is respectively sent to the whole automobile data communication bus and the steering column crushing control unit;
the steering column crushing control unit can simultaneously receive a whole vehicle data communication bus and a safety system ignition instruction of the safety airbag controller, and after receiving the instruction, the steering column crushing control unit controls the system to start;
the steering column crushing control unit receives detection data of a steering column crushing force sensor and adjusts a steering column crushing motor in real time according to the sensor data;
when the crushing force detected by the steering column crushing force sensor is greater than a preset upper limit value, the steering column crushing control unit controls the steering column crushing motor to rotate forwards to provide tension and reduce the crushing force of the steering column; when the crushing force detected by the crushing force sensor of the steering column is smaller than a preset lower limit value, the crushing control unit of the steering column controls the crushing motor of the steering column to rotate reversely, so that thrust is provided, and the crushing force of the steering column is improved;
through the control process, the crushing force of the steering column is always kept in a stable set range.
Example 2
A control method of a steering column adaptive crushing control system in automobile collision comprises the following steps:
firstly, when an automobile is collided, an air bag safety controller unit respectively sends a safety system ignition instruction to a whole automobile data communication bus and a steering column crushing control unit;
secondly, the steering column crushing control unit receives a safety system ignition instruction of the safety air bag controller and starts the control system;
thirdly, the steering column crushing control unit receives the detection data of the steering column crushing force sensor and compares the crushing force detected by the steering column crushing force sensor with a preset upper limit value;
step four, when the crushing force detected by the crushing force sensor of the steering column is greater than a preset upper limit value, the crushing control unit of the steering column controls the crushing motor of the steering column to rotate forwards, so as to provide tension and reduce the crushing force of the steering column; when the crushing force detected by the steering column crushing force sensor is smaller than a preset lower limit value, the steering column crushing control unit controls the steering column crushing motor to rotate reversely, so that thrust is provided, and the crushing force of the steering column is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A control system for self-adaptive crushing of a steering column in automobile collision is characterized by comprising an air bag controller, a whole automobile data communication bus, a steering column crushing control unit, a steering column crushing force sensor and a steering column crushing motor;
the safety air bag controller is in communication connection with the whole vehicle data communication bus and the steering column collapse control unit;
the steering column crushing control unit is in communication connection with the whole vehicle data communication bus, the safety air bag controller and the steering column crushing force sensor, and is simultaneously electrically connected with the steering column crushing motor;
the steering column crushing motor is connected with the inner column of the steering column;
the steering column crushing force sensor is connected with the steering column sleeve.
2. The system for controlling adaptive collapse of a steering column during an automobile collision as claimed in claim 1, wherein said airbag controller unit sends a safety system ignition command to the entire vehicle data communication bus and the steering column collapse control unit, respectively.
3. The system for controlling adaptive collapse of a steering column during an automobile collision as claimed in claim 1, wherein said steering column collapse control unit receives the firing command of the safety system of the all-air bag controller, acquires the detection data of the steering column collapse force sensor, and adjusts the steering column collapse motor in real time according to the detection data of the steering column collapse force sensor.
4. The system for controlling adaptive collapse of the steering column during automobile collision as claimed in claim 3, wherein when the collapse force detected by the collapse force sensor is greater than the preset upper limit value, the steering column collapse control unit controls the steering column collapse motor to rotate forward to provide the pulling force; when the crushing force detected by the crushing force sensor of the steering column is smaller than the preset lower limit value, the crushing control unit of the steering column controls the crushing motor of the steering column to rotate reversely to provide thrust.
5. The system for controlling adaptive collapse of a steering column during an automobile collision as claimed in claim 1, wherein said steering column collapse force sensor is connected to the inner wall of the steering column sleeve by a steering column collapse force sensor connection line.
6. The system for controlling adaptive collapse of a steering column in an automobile collision as claimed in claim 1, wherein said steering column collapse motor is connected to the steering column inner column by a steering column collapse motor and a steering column inner column connecting member.
7. A control method of a steering column adaptive crush control system in an automobile collision as recited in claim 1, comprising the steps of:
firstly, when an automobile is collided, an air bag safety controller unit respectively sends a safety system ignition instruction to a whole automobile data communication bus and a steering column crushing control unit;
secondly, the steering column crushing control unit receives a safety system ignition instruction of the safety air bag controller and starts the control system;
thirdly, the steering column crushing control unit receives the detection data of the steering column crushing force sensor and compares the crushing force detected by the steering column crushing force sensor with a preset upper limit value;
step four, when the crushing force detected by the crushing force sensor of the steering column is greater than a preset upper limit value, the crushing control unit of the steering column controls the crushing motor of the steering column to rotate forwards, so as to provide tension and reduce the crushing force of the steering column; when the crushing force detected by the steering column crushing force sensor is smaller than a preset lower limit value, the steering column crushing control unit controls the steering column crushing motor to rotate reversely, so that thrust is provided, and the crushing force of the steering column is improved.
CN202010521860.5A 2020-06-10 2020-06-10 Control system and control method for adaptive crushing of steering column in automobile collision Pending CN111776060A (en)

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Application Number Priority Date Filing Date Title
CN202010521860.5A CN111776060A (en) 2020-06-10 2020-06-10 Control system and control method for adaptive crushing of steering column in automobile collision

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Application Number Priority Date Filing Date Title
CN202010521860.5A CN111776060A (en) 2020-06-10 2020-06-10 Control system and control method for adaptive crushing of steering column in automobile collision

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030214127A1 (en) * 2002-03-28 2003-11-20 Ross Christian E. Programmable energy absorbing system
CN102211561A (en) * 2011-05-05 2011-10-12 上海东方久乐汽车安全气囊有限公司 Control method for steering wheel collapse and device using same
CN202208274U (en) * 2011-05-05 2012-05-02 上海东方久乐汽车安全气囊有限公司 Steering wheel collapsing control device
CN103192866A (en) * 2013-01-07 2013-07-10 浙江吉利汽车研究院有限公司杭州分公司 Crushing system for steering column
CN107284514A (en) * 2017-05-23 2017-10-24 北汽福田汽车股份有限公司 Steering column, steering, vehicle and the control method of steering column crumple
CN107323522A (en) * 2017-07-06 2017-11-07 北京汽车股份有限公司 Steering control system and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030214127A1 (en) * 2002-03-28 2003-11-20 Ross Christian E. Programmable energy absorbing system
CN102211561A (en) * 2011-05-05 2011-10-12 上海东方久乐汽车安全气囊有限公司 Control method for steering wheel collapse and device using same
CN202208274U (en) * 2011-05-05 2012-05-02 上海东方久乐汽车安全气囊有限公司 Steering wheel collapsing control device
CN103192866A (en) * 2013-01-07 2013-07-10 浙江吉利汽车研究院有限公司杭州分公司 Crushing system for steering column
CN107284514A (en) * 2017-05-23 2017-10-24 北汽福田汽车股份有限公司 Steering column, steering, vehicle and the control method of steering column crumple
CN107323522A (en) * 2017-07-06 2017-11-07 北京汽车股份有限公司 Steering control system and method

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Application publication date: 20201016

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