CN110562320A - steering gear for stably controlling driving direction of automobile after tire burst - Google Patents
steering gear for stably controlling driving direction of automobile after tire burst Download PDFInfo
- Publication number
- CN110562320A CN110562320A CN201911002924.4A CN201911002924A CN110562320A CN 110562320 A CN110562320 A CN 110562320A CN 201911002924 A CN201911002924 A CN 201911002924A CN 110562320 A CN110562320 A CN 110562320A
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- steering
- automobile
- electromagnetic clutch
- gear
- motor
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 27
- 230000009467 reduction Effects 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 4
- 238000013016 damping Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- 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
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/046—Controlling the motor
- B62D5/0463—Controlling the motor calculating assisting torque from the motor based on driver input
-
- 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
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/0475—Controlling other elements
- B62D5/0478—Clutches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
- B62D6/001—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits the torque NOT being among the input parameters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
- Power Steering Mechanism (AREA)
Abstract
The invention discloses a steering gear for stably controlling the driving direction of an automobile after tire burst, which comprises a steering wheel angle sensor, a steering stable control device, a left tire pressure sensor and a right tire pressure sensor, wherein the steering stable control device comprises a motor, a motor controller, a speed reducer, an electromagnetic clutch and a speed reduction input control rod, the lower end of the speed reduction input control rod is in gear connection with a steering main rod of the automobile, the tire pressure is monitored in real time through the pressure sensor in the driving process of the automobile, the data of the steering wheel angle sensor of the automobile is read at the moment of tire burst and then converted into motor control data quantity, a servo motor and the speed reducer are started, the speed reducer provides large-torque damping to be connected with the speed reduction input control rod to provide reverse torque, the speed reduction input control rod acts on the steering main rod of the automobile through gear engagement, the steering main rod of the, can be widely applied to various vehicle types.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a steering gear for stably controlling the driving direction of an automobile after tire burst.
Background
At present, an automobile steering control system cannot completely solve the problem of tire burst driving, a real safety protection system is not provided, and after the tire burst occurs in the driving process of an automobile, a driver needs to keep cool and hold a steering wheel tightly to keep the current driving direction of the automobile, and the automobile is slowly braked to finally stop the automobile. The requirement on a driver is high, the driver needs to have enough strength to control the steering wheel when the steering wheel is subjected to large impact force brought by a steering system after a tire burst, the requirements on psychological quality and physical strength of the driver are high, and danger exists.
aiming at the problem, the invention designs a steering gear for stably controlling the running direction of an automobile after tire burst, on the basis of the traditional rack-and-pinion steering gear, a gear input shaft is additionally arranged and is connected and controlled by a large-torque motor reducer with an electromagnetic clutch, and when the automobile normally runs without tire burst, the electromagnetic clutch reducer motor is finally disconnected with the power of a gear of the input shaft of the rack-and-pinion steering gear; when a tire burst occurs, the tire pressure sensor detects that the tire pressure is changed instantly and greatly, the tire pressure sensor is in wireless communication with a vehicle body controller, the vehicle body controller captures the tire burst information of a vehicle and forwards the tire burst information to an electromagnetic clutch speed reduction motor controller through a high-speed CAN network, the electromagnetic clutch speed reduction motor controller controls the electromagnetic clutch to be closed, the large torsion damping of a speed reducer is connected with a gear rack steering gear input shaft gear, the angle of a steering gear input shaft motor of the steering gear is used as an input basis by the angle of a steering wheel corner sensor of a driver, the original steering angle state of the driver steering wheel before the tire burst and at the tire burst instant is kept, the impact of the outside on the driver steering wheel after the tire burst is influenced and blocked, the effective control of the whole steering system is still in the hand of the driver during the tire burst, and the vehicle is safely stopped by matching with a braking.
A Body Controller (BCM), also called a body computer (body computer), is an Electronic Control Unit (ECU) for controlling electrical systems of a body in automotive engineering, and is one of important components of an automobile, and has the following functions: 1) receiving information input by a sensor or other devices, and converting the input information into signals capable of being received by a microprocessor; 2) storing, calculating, analyzing and processing information, analyzing a program used for an output value, storing characteristic parameters of the vehicle type, data in operation (random access along with storage), and storing fault information; 3) and (6) performing operation analysis. Calculating the execution command data according to the information parameters, comparing the input information with a standard value, and checking faults; 4) and outputting the execution command. And converting the weak signal into an execution command, outputting fault information and self-correcting.
disclosure of Invention
The invention aims to solve the defects in the prior art and provides the steering gear which can effectively ensure that the effective control of the whole steering system is still in the hands of a driver when the tire is burst and cannot be influenced by the impact force of the outside on the steering wheel of the driver after the tire is burst, so that the driver can stably stop the vehicle and the safe and stable control of the driving is ensured.
In order to achieve the purpose, the invention adopts the following technical scheme:
The utility model provides a steering gear that is used for automobile to go direction stable control after blowing out, includes the automobile steering mobile jib, and automobile body steering column input shaft to and connect left steering tie rod and the right steering tie rod at automobile steering mobile jib both ends, still include steering wheel angle sensor, turn to stable control device, left tire pressure sensor and right tire pressure sensor, turn to stable control device and include motor, machine controller, speed reducer, electromagnetic clutch and speed reduction input control pole, the motor is connected on speed reducer upper portion, electromagnetic clutch is connected to the speed reducer lower part speed reduction input control pole lower extreme and automobile steering mobile jib gear connection, machine controller, electromagnetic clutch, left tire pressure sensor, right tire pressure sensor and steering wheel angle sensor are connected with vehicle-mounted controller. Firstly, the tire pressure sensor sends pressure data to a storage unit of a vehicle body controller, and a pressure judging unit judges whether a tire is burst or not according to the pressure data; after the tire burst is judged, the vehicle body controller reads real-time data of a steering wheel angle sensor, inputs the angle data into an angle conversion unit, converts the angle data into input voltage and input power according to specific parameters of a vehicle at the same time to generate motor control information, and transmits the motor control information to the motor controller through a high-speed CAN network; the motor controller starts the electromagnetic clutch to be closed according to the input voltage and the input power, then starts the motor and the speed reducer, the speed reducer provides large-torque damping to be connected with the speed reduction input control rod, reverse torque is provided, and the steering angle of the vehicle body is kept in a tire burst instant state.
Preferably, the motor is a servo motor, the electromagnetic clutch comprises an electromagnetic clutch driving disc, an electromagnetic clutch driven disc and an electromagnetic clutch driven disc torque output rotary disc, the servo motor spindle is connected with the input end of a speed reducer, and the output end of the speed reducer is connected with the electromagnetic clutch driving disc. After the electromagnetic clutch is electrified, the driving disc of the electromagnetic clutch and the driven disc of the electromagnetic clutch are adsorbed together, so that the large-torque damping of the speed reducing motor is connected with the speed reducing input control rod to provide reverse torque for the speed reducing input control rod, the automobile steering main rod is stabilized, the driving disc of the electromagnetic clutch is separated from the driven disc of the electromagnetic clutch under the condition of tire burst, the speed reducing input control rod is connected with the automobile steering main rod through a pure gear, and the increased resistance is small for normal running of an automobile.
Preferably, a universal joint input spline shaft and a universal joint are arranged between the electromagnetic clutch and the speed reduction input control rod. The universal joint input spline shaft and the universal joint are connected with the torque output turntable of the electromagnetic clutch driven disc and the speed reduction input control rod in a communication mode, so that when the axes of the universal joint input spline shaft and the universal joint are not in the same direction, the two connected shafts can continuously rotate under the condition of an included angle between the axes, and torque and motion are reliably transmitted.
Preferably, the lower end of the speed reduction input control rod is provided with a lower speed reduction control gear, and the automobile steering main rod is provided with a rack belt corresponding to the speed reduction control gear.
Preferably, a pressing mechanism is arranged at the joint of the speed reduction control gear and the gear belt, and a mounting bracket is arranged on the pressing mechanism.
Preferably, the two ends of the automobile steering main rod are sleeved with dust covers.
The invention has the beneficial technical effects that: the tire pressure is monitored in real time through a pressure sensor in the automobile driving process, after tire burst reads automobile steering wheel angle sensor data instantly, the data are converted into motor control data quantity, a servo motor and a speed reducer are started, the speed reducer provides large torque damping to be connected with a speed reduction input control rod, reverse torque is provided, the speed reduction input control rod acts on an automobile steering main rod through gear meshing, the automobile steering main rod is stabilized, the steering main rod, a left steering cross pull rod and a right steering cross pull rod are kept in a tire burst state, the automobile body is prevented from deflecting greatly in the tire burst state, and the automobile body steering angle is kept in the tire burst instant state. The stability of the whole vehicle after the tire explosion is improved, the safety of a driver and passengers is ensured, and the vehicle can be widely applied to various vehicle types.
drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the steering stability control device of the present invention;
FIG. 3 is a schematic view of the construction of a steering main lever portion of the vehicle of the present invention;
FIG. 4 is a schematic view of a portion of the structure of the present invention;
FIG. 5 is a schematic diagram of the principle of the present invention;
FIG. 6 is a control flow diagram of the present invention;
In the figure: the steering control device comprises an automobile steering main rod 1, a rack belt 10, a dust cover 11, a vehicle body steering column input shaft 2, a steering wheel angle sensor 20, a steering stability control device 3, a motor 31, a speed reducer 32, an electromagnetic clutch 33, an electromagnetic clutch driving disc 330, an electromagnetic clutch driven disc 331, an electromagnetic clutch driven disc torque output turntable 332, a speed reduction input control rod 34, a speed reduction control gear 341, a universal joint 35, a left steering tie rod 4, a right steering tie rod 5, a left tire pressure sensor 61, a right tire pressure sensor 62, a pressing mechanism 7 and a mounting bracket 8.
Detailed Description
The invention will be further described with reference to the accompanying drawings, which will serve to assist the public in understanding the invention, and the following description of the embodiments is not intended to limit the invention to the specific embodiments given by the applicant, and any changes in the definition of parts or features, or in the form of an overall structure, rather than essential changes, may be made to the invention as defined in the claims.
1-6, the vehicle turns to the control module and includes motor controller 310 and turns to stable controlling means 3, turn to stable controlling means and include speed reduction input control pole 34, electromagnetic clutch 33, speed reducer 32 and motor 31, speed reduction input control pole 34 and car turn to main lever 1 gear connection.
As shown in fig. 1, an automobile steering main rod 1 is connected with an input shaft 2 of an automobile body steering column, two ends of the automobile steering main rod are respectively connected with a left steering tie rod 4 and a right steering tie rod 5, and the automobile steering main rod further comprises a steering wheel angle sensor 20 and a steering stability control device 3.
As shown in fig. 2, the motor 31 is a servo motor, the electromagnetic clutch 33 includes an electromagnetic clutch driving disk 330, an electromagnetic clutch driven disk 331, and an electromagnetic clutch driven disk torque output turntable 332, the servo motor spindle is connected to the input end of the speed reducer 32, the output end of the speed reducer is connected to the electromagnetic clutch driving disk, and a gimbal input spline shaft and a gimbal 35 are arranged between the electromagnetic clutch 33 and the speed reduction input control rod 34.
as shown in fig. 3, a lower deceleration control gear 341 is provided at a lower end of the deceleration input control lever 34, and a rack belt 10 corresponding to the deceleration control gear is provided on the steering main rod 1 of the vehicle.
As shown in fig. 4, a pressing mechanism 7 is arranged at the joint of the deceleration control gear and the gear belt, a mounting bracket 8 is arranged on the pressing mechanism, and dust covers 11 are sleeved at two ends of the automobile steering main rod 1.
As shown in fig. 5, the left tire pressure sensor 61 and the right tire pressure sensor 62, the steering stability control device includes a motor 31, a speed reducer 32, an electromagnetic clutch 33, and a deceleration input control rod 34, the lower end of which is gear-connected to the steering main rod 1 of the automobile, the motor, the electromagnetic clutch, the left tire pressure sensor, the right tire pressure sensor, and the steering wheel angle sensor are connected to the on-board controller,
As shown in fig. 5 and 6, in the normal driving process, when a left tire suddenly explodes, the pressure of the left tire pressure sensor 31 suddenly drops, the data changes dramatically, and the pressure data is sent to the storage unit of the vehicle body controller, the pressure judgment unit judges a tire explosion event according to the pressure data, at this time, the vehicle body controller immediately reads the real-time data of the steering wheel angle sensor, inputs the angle data into the angle conversion unit, and converts the angle data into input voltage and input power according to the specific parameters of the vehicle to generate motor control information, and the motor control information is transmitted to the motor controller by the high-speed CAN network; the motor controller starts the electromagnetic clutch to be attracted according to input voltage and input power, the motor and the speed reducer are started, the speed reducer provides large-torque damping and is connected with the speed reduction input control rod, reverse torque is provided, the speed reduction input control rod acts on the automobile steering main rod through gear meshing, the automobile steering main rod is stabilized, the steering main rod, the left steering cross pull rod and the right steering cross pull rod are kept in a tire burst front state, the automobile body is prevented from deflecting greatly under the tire burst state, and the automobile body steering angle is kept in a tire burst instant state.
of course, the present invention may be embodied in other various forms, for example, in some foreign vehicle models with the driver's position on the right side, the steering stability control device of the present method and apparatus is mounted on the steering main rod of the vehicle, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit and essence of the present invention, and these changes and modifications should fall within the scope of the appended claims.
Claims (6)
1. The utility model provides a steering gear that is used for automobile to blow out back traffic direction stable control, includes automobile steering mobile jib (1), automobile body steering column input shaft (2) to and connect left turn to tie rod (4) and right turn to tie rod (5) at automobile steering mobile jib both ends, its characterized in that still includes steering wheel angle sensor (20), turns to stable control device (3), left tire pressure sensor (61) and right tire pressure sensor (62), turn to stable control device and include motor (31), machine controller (310), speed reducer (32), electromagnetic clutch (33) and speed reduction input control pole (34), the motor is connected on speed reducer upper portion, speed reducer sub-unit connection electromagnetic clutch, speed reduction input control pole lower extreme and automobile steering mobile jib (1) gear connection, machine controller, electromagnetic clutch, The left tire pressure sensor, the right tire pressure sensor and the steering wheel angle sensor are in circuit connection with the vehicle-mounted controller.
2. The steering gear for stably controlling the driving direction of an automobile after tire burst according to claim 1, wherein the motor (31) is a servo motor, the electromagnetic clutch (33) comprises an electromagnetic clutch driving disc (330), an electromagnetic clutch driven disc (331) and an electromagnetic clutch driven disc torque output turntable (332), a main shaft of the servo motor is connected with an input end of a speed reducer (32), and an output end of the speed reducer is connected with the electromagnetic clutch driving disc.
3. The steering gear for stable driving direction control after vehicle tire burst according to claim 2, characterized in that a cardan joint input spline shaft and a cardan joint (35) are provided between said electromagnetic clutch (33) and said deceleration input control lever (34).
4. The steering gear for stably controlling the driving direction of an automobile after a tire burst as claimed in claim 1, wherein the lower end of the deceleration input control lever (34) is provided with a lower deceleration control gear (341), and the main steering lever (1) of the automobile is provided with a rack belt (10) corresponding to the deceleration control gear.
5. The steering gear for stably controlling the driving direction of an automobile after tire burst according to claim 3, wherein a pressing mechanism (7) is arranged at the joint of the speed reduction control gear and the gear belt, and a mounting bracket (8) is arranged on the pressing mechanism.
6. the steering gear for stably controlling the driving direction of an automobile after tire burst as claimed in claim 1, wherein the main steering rod (1) of the automobile is sleeved with dust covers (11) at both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911002924.4A CN110562320A (en) | 2019-10-22 | 2019-10-22 | steering gear for stably controlling driving direction of automobile after tire burst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911002924.4A CN110562320A (en) | 2019-10-22 | 2019-10-22 | steering gear for stably controlling driving direction of automobile after tire burst |
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| Publication Number | Publication Date |
|---|---|
| CN110562320A true CN110562320A (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911002924.4A Pending CN110562320A (en) | 2019-10-22 | 2019-10-22 | steering gear for stably controlling driving direction of automobile after tire burst |
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| Country | Link |
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| CN (1) | CN110562320A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110979450A (en) * | 2019-12-23 | 2020-04-10 | 广东工业大学 | Formula of driverless car steering mechanism that can freely switch |
| US11964719B2 (en) | 2020-08-20 | 2024-04-23 | Toyota Motor Engineering & Manufacturing North America, Inc. | Breakaway automotive steering tie rod for controlled wheel motion during crash |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102910201A (en) * | 2012-10-26 | 2013-02-06 | 广西工学院 | Steering-based automobile flat tire prevention control system |
| CN102963420A (en) * | 2012-12-06 | 2013-03-13 | 李良杰 | Automatic direction correcting and braking system for tire burst |
| CN103754256A (en) * | 2014-01-24 | 2014-04-30 | 中国石油大学(华东) | Steering-mode adjustable electric automobile steering system and control method |
| CN205675103U (en) * | 2016-06-20 | 2016-11-09 | 王军 | Automobile steering control system |
| CN106218710A (en) * | 2016-08-23 | 2016-12-14 | 北京英创汇智科技有限公司 | A kind of automobile steering system |
| CN109436084A (en) * | 2018-12-05 | 2019-03-08 | 贵州长江汽车有限公司 | A kind of automobile gear rack gear backlash of steering gear adjustment mechanism |
| CN210882296U (en) * | 2019-10-22 | 2020-06-30 | 杭州精是智能科技有限公司 | Steering gear for stably controlling driving direction of automobile after tire burst |
-
2019
- 2019-10-22 CN CN201911002924.4A patent/CN110562320A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102910201A (en) * | 2012-10-26 | 2013-02-06 | 广西工学院 | Steering-based automobile flat tire prevention control system |
| CN102963420A (en) * | 2012-12-06 | 2013-03-13 | 李良杰 | Automatic direction correcting and braking system for tire burst |
| CN103754256A (en) * | 2014-01-24 | 2014-04-30 | 中国石油大学(华东) | Steering-mode adjustable electric automobile steering system and control method |
| CN205675103U (en) * | 2016-06-20 | 2016-11-09 | 王军 | Automobile steering control system |
| CN106218710A (en) * | 2016-08-23 | 2016-12-14 | 北京英创汇智科技有限公司 | A kind of automobile steering system |
| CN109436084A (en) * | 2018-12-05 | 2019-03-08 | 贵州长江汽车有限公司 | A kind of automobile gear rack gear backlash of steering gear adjustment mechanism |
| CN210882296U (en) * | 2019-10-22 | 2020-06-30 | 杭州精是智能科技有限公司 | Steering gear for stably controlling driving direction of automobile after tire burst |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110979450A (en) * | 2019-12-23 | 2020-04-10 | 广东工业大学 | Formula of driverless car steering mechanism that can freely switch |
| US11964719B2 (en) | 2020-08-20 | 2024-04-23 | Toyota Motor Engineering & Manufacturing North America, Inc. | Breakaway automotive steering tie rod for controlled wheel motion during crash |
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