CN214267755U - Automobile electric control power-assisted steering system - Google Patents
Automobile electric control power-assisted steering system Download PDFInfo
- Publication number
- CN214267755U CN214267755U CN202022789504.XU CN202022789504U CN214267755U CN 214267755 U CN214267755 U CN 214267755U CN 202022789504 U CN202022789504 U CN 202022789504U CN 214267755 U CN214267755 U CN 214267755U
- Authority
- CN
- China
- Prior art keywords
- motor
- steering
- planetary
- speed reducer
- steering system
- 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.)
- Active
Links
Images
Landscapes
- Power Steering Mechanism (AREA)
Abstract
The utility model provides an automatically controlled power assisted steering system of car, it is applicable to autopilot and manual driving simultaneously, and its compact structure, mechanical efficiency are high, the integrated level is high. The steering wheel comprises a steering wheel and a torque sensor, wherein the center of the steering wheel is connected with a torsion bar device through a first steering shaft, the lower part of the torsion bar device is connected with a second steering shaft, the torsion bar device comprises the torque sensor, the torque sensor is connected to a motor controller through signals, the output end of the motor controller is connected with a motor, the output end of the motor is connected with a speed reducer, the output end of the speed reducer is transmitted to the second steering shaft, and the lower output end of the second steering shaft is connected with the input end of the steering machine.
Description
Technical Field
The utility model relates to a car a steering system's technical field specifically is an automatically controlled power assisted steering system of car.
Background
Current automobile power assisted steering, including electronic power assisted steering and hydraulic power assisted steering, no matter which kind of steering, all need the people to operate the steering wheel, just can produce the helping hand, along with automatic driving's development, current power assisted steering system that needs the people to control the steering wheel can not satisfy the demand.
Disclosure of Invention
To the problem, the utility model provides an automatically controlled power assisted steering system of car, it is applicable to autopilot and manual driving simultaneously, and its compact structure, mechanical efficiency are high, the integrated level is high.
An automatically controlled power assisted steering system of car which characterized in that: the steering wheel comprises a steering wheel and a torque sensor, wherein the center of the steering wheel is connected with a torsion bar device through a first steering shaft, the lower part of the torsion bar device is connected with a second steering shaft, the torsion bar device comprises the torque sensor, the torque sensor is connected to a motor controller through signals, the output end of the motor controller is connected with a motor, the output end of the motor is connected with a speed reducer, the output end of the speed reducer is transmitted to the second steering shaft, and the lower output end of the second steering shaft is connected with the input end of a steering machine.
It is further characterized in that:
the motor controller, the motor and the speed reducer are combined to form an electric control power-assisted steering system;
the electric control power-assisted steering system comprises a shell, wherein a motor and a speed reducer are arranged in the shell, the speed reducer is a planetary speed reducer, the planetary speed reducer comprises a first planetary carrier and a second planetary carrier, the center of the second planetary carrier is fixedly connected with a second steering shaft, a plurality of second planetary gears are arranged on the second planetary carrier, the inner ring of each second planetary gear is meshed and connected with a second sun gear, the second sun gear is arranged at the periphery of a hollow shaft of the first planetary carrier, a plurality of first planetary gears which are annularly distributed are further arranged on the first planetary carrier, the motor comprises a motor stator and a motor rotor, the motor rotor is fixedly arranged on the outer ring surface of the first sun gear carrier, a first sun gear is fixedly sleeved at the position of the first sun gear carrier corresponding to the first planetary gear, and the first sun gear is meshed and connected with the first planetary gears corresponding to the periphery, the motor stator is arranged on the periphery of the motor rotor, the shell is provided with a gear ring corresponding to the peripheral areas of the first planet wheel and the second planet wheel, the height range of the gear ring covers the first planet wheel and the second planet wheel, and the peripheries of the first planet wheel and the second planet wheel are respectively meshed with the gear ring;
the torsion bar device is arranged in an inner cavity of the motor rotor, the torque sensor is sleeved on the first steering shaft, a motor controller is further arranged in the shell, the torque sensor is in signal connection with the motor controller, and the output end of the motor controller is connected to a motor;
the torsion bar device is a mechanical device which is stressed to generate position deformation, and the design deformation displacement and the deformation strength are adjusted according to the requirements of different specifications;
the motor can adopt a brushless motor or a brush motor.
After the utility model is adopted, the motor controller receives the instruction to transmit the output torque and the rotating speed of the motor to the second steering shaft and the steering engine after the speed reduction and torque increase of the speed reducer during automatic driving, and the automatic power-assisted steering of the direction is completed; the method comprises the following steps that non-automatic driving is carried out, and when a torque sensor connected with a steering wheel identifies that the force of a driver for rotating the steering wheel reaches a certain torque, a motor controller receives a signal to drive a motor to start working so as to achieve the effect of assisting power; the automatic driving and manual driving integrated device is suitable for automatic driving and manual driving, and is compact in structure, high in mechanical efficiency and high in integration level.
Drawings
FIG. 1 is a block diagram schematically illustrating the structure of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the steering wheel comprises a steering wheel 1, a first steering shaft 2, a housing 3, a torque sensor 4, a motor rotor 5, a motor stator 6, a torsion bar device 7, a second steering shaft 8, a first sun gear 9, a first planet gear 10, a first planet carrier 11, a second planet gear 12, a second planet carrier 13, a gear ring 14, a steering gear 15, a second sun gear 16 and a motor controller 17.
Detailed Description
An electric control power-assisted steering system for an automobile is shown in figures 1 and 2: the steering wheel comprises a steering wheel 1 and a torque sensor 4, wherein the center of the steering wheel 1 is connected with a torsion bar device 7 through a first steering shaft 2, the lower part of the torsion bar device 7 is connected with a second steering shaft 8, the torsion bar device 7 comprises the torque sensor 4, the torque sensor 4 is connected to a motor controller 17 through a signal, the output end of the motor controller 17 is connected with a motor, the output end of the motor is connected with a speed reducer, the output end of the speed reducer is transmitted to the second steering shaft 8, and the lower output end of the second steering shaft 8 is connected with the input end of a steering engine 15.
The motor controller, the motor and the speed reducer are combined to form an electric control power-assisted steering system.
When the electric power-assisted steering system is specifically implemented, the electric power-assisted steering system is arranged between a steering wheel and a steering machine, can independently drive the steering machine, assists the steering wheel to drive the steering machine, and can not work when the steering wheel drives the steering machine; the steering power and the steering wheel power of the electric control power-assisted steering system are input into the steering machine in parallel.
In a specific embodiment, see fig. 2: the electric control power-assisted steering system comprises a shell 3, a motor and a speed reducer are arranged in the shell 3, the speed reducer is a planetary speed reducer, the planetary speed reducer comprises a first planetary carrier 11 and a second planetary carrier 13, the center of the second planetary carrier 13 is fixedly connected to a second steering shaft 8, a plurality of second planetary gears 12 are arranged on the second planetary carrier 13, the inner rings of the second planetary gears 12 are meshed and connected with a second sun gear 16, the second sun gear 16 is arranged on the periphery of a hollow shaft of the first planetary carrier 11, a plurality of first planetary gears 10 which are annularly distributed are further arranged on the first planetary carrier 11, the motor comprises a motor stator 6 and a motor rotor 5, the motor rotor 5 is fixedly arranged on the outer ring surface of the first planetary carrier, a first sun gear 9 is fixedly sleeved on the position of the first planetary carrier corresponding to the first planetary gear 10, and the first sun gear 9 is meshed and connected with the first planetary gears 10 which correspond to the periphery, the motor stator 6 is arranged at the periphery of the motor rotor 5, the shell 3 is provided with a gear ring 14 corresponding to the peripheral areas of the first planet wheel 10 and the second planet wheel 12, the height range of the gear ring 14 covers the first planet wheel 10 and the second planet wheel 12, and the peripheries of the first planet wheel 10 and the second planet wheel 12 are respectively meshed with the gear ring 14;
the torsion bar device 7 is arranged in an inner cavity of the motor rotor 5, the torque sensor 4 is sleeved on the first steering shaft 2, the torque sensor 4 monitors deformation of the torsion bar device 7, the shell 3 is further internally provided with a motor controller 17, the torque sensor 4 is in signal connection (wired or wireless connection) with the motor controller 17, and an output end of the motor controller 17 is connected to the motor.
The motor controller 17 drives the motor torque rotation speed by the output of the duty ratio.
The working principle is as follows:
the steering wheel is connected with a first steering shaft of the electric control power-assisted steering system 3 through a connecting rod, the first steering shaft is connected with a second steering shaft through a torsion bar device, and the second steering shaft is connected with the input end of a steering engine; when the steering wheel is driven manually, power can be transmitted to the steering machine through the steering wheel, the first steering shaft, the torsion bar device and the second steering shaft, and the steering action of the vehicle is realized;
the motor stator is fixed on a shell of the power-assisted steering control system, the motor rotor is fixedly connected with the first sun gear, the first planet gear is arranged on the first planet carrier and is simultaneously meshed with the first sun gear and the gear ring, and the gear ring is fixed on the shell of the power-assisted steering control system; a second sun gear is arranged on the first planet carrier, a second planet gear is meshed with the second sun gear and the gear ring at the same time, the second planet gear is arranged on the second planet carrier, and the second planet carrier is fixedly connected with a second steering shaft; when the vehicle is unmanned, the motor can drive the motor rotor and the first sun gear to rotate according to the instruction of the vehicle controller, so as to drive the planetary gear train to rotate, and the power is transmitted to the steering machine through the second steering shaft, so that the steering action of the vehicle is realized;
when auxiliary power is needed, the steering wheel and the first steering shaft are manually driven, and when power is transmitted to the steering engine through the torsion bar device and the second steering shaft, the torque sensor detects the deformation of the torsion bar device to determine the manual steering intention, and the vehicle control unit controls the motor to drive to transmit the motor power to the steering engine, so that auxiliary steering is realized.
When the steering system is driven automatically, the motor controller receives an instruction to enable the output torque and the rotating speed of the motor to be transmitted to the second steering shaft and the steering machine after the speed is reduced and the torque is increased through the speed reducer, and the automatic power-assisted steering in the direction is completed; the motor controller receives a signal to drive the motor to start working to achieve the effect of assisting when a torque sensor connected with a steering wheel identifies that the force of a driver for rotating the steering wheel reaches a certain torque.
The steering control system is matched with different driving modes to adjust different steering characteristics, can realize active direction return, can assist in stabilizing the direction during emergency braking, and can realize automatic steering wheel driving, so that high-tech function application technologies such as automatic parking, active lane correction, automatic driving and the like can be realized.
The beneficial effects are as follows: the structure is compact, the volume is reduced, the quality is reduced, and the overall efficiency is improved by the structure that the motor, the speed reducer, the input shaft and the torque sensor are connected in series; when the electric control system fails, the manual directional speed reducer cannot be changed into resistance from power assistance, so that the risk is reduced; the straight-line running stability of the vehicle is obviously improved, and the driving fatigue is reduced; the safety factor of the whole vehicle is improved, and the probability of accidents is reduced; the steering engine is automatically locked after the vehicle is parked and flamed out, so that the steering engine is prevented from being stolen.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. An automatically controlled power assisted steering system of car which characterized in that: the steering wheel comprises a steering wheel and a torque sensor, wherein the center of the steering wheel is connected with a torsion bar device through a first steering shaft, the lower part of the torsion bar device is connected with a second steering shaft, the torsion bar device comprises the torque sensor, the torque sensor is connected to a motor controller through signals, the output end of the motor controller is connected with a motor, the output end of the motor is connected with a speed reducer, the output end of the speed reducer is transmitted to the second steering shaft, and the lower output end of the second steering shaft is connected with the input end of a steering machine.
2. An electrically controlled power steering system for a vehicle according to claim 1, wherein: the motor controller, the motor and the speed reducer are combined to form an electric control power-assisted steering system.
3. An electric control power steering system for a vehicle according to claim 2, wherein: the electric control power-assisted steering system comprises a shell, wherein a motor and a speed reducer are arranged in the shell, the speed reducer is a planetary speed reducer, the planetary speed reducer comprises a first planetary carrier and a second planetary carrier, the center of the second planetary carrier is fixedly connected with a second steering shaft, a plurality of second planetary gears are arranged on the second planetary carrier, the inner ring of each second planetary gear is meshed and connected with a second sun gear, the second sun gear is arranged at the periphery of a hollow shaft of the first planetary carrier, a plurality of first planetary gears which are annularly distributed are further arranged on the first planetary carrier, the motor comprises a motor stator and a motor rotor, the motor rotor is fixedly arranged on the outer ring surface of the first sun gear carrier, a first sun gear is fixedly sleeved at the position of the first sun gear carrier corresponding to the first planetary gear, and the first sun gear is meshed and connected with the first planetary gears corresponding to the periphery, the motor stator set up in electric motor rotor's periphery, the casing is provided with the ring gear corresponding to the peripheral region of first planet wheel, second planet wheel, and the high range of ring gear covers first planet wheel, second planet wheel, the periphery of first planet wheel, second planet wheel meshes the ring gear respectively and arranges.
4. An electric control power steering system for a vehicle according to claim 3, wherein: the torsion bar device is arranged in an inner cavity of the motor rotor, the torque sensor is sleeved on the first steering shaft, a motor controller is further arranged in the shell, the torque sensor is in signal connection with the motor controller, and an output end of the motor controller is connected to the motor.
5. An electrically controlled power steering system for a vehicle according to claim 1, wherein: the torsion bar device is a mechanical device which is stressed to generate position deformation, and the design deformation displacement and the deformation strength are adjusted according to the requirements of different specifications.
6. An electrically controlled power steering system for a vehicle according to claim 1, wherein: the motor can adopt a brushless motor or a brush motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022789504.XU CN214267755U (en) | 2020-11-26 | 2020-11-26 | Automobile electric control power-assisted steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022789504.XU CN214267755U (en) | 2020-11-26 | 2020-11-26 | Automobile electric control power-assisted steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214267755U true CN214267755U (en) | 2021-09-24 |
Family
ID=77779227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022789504.XU Active CN214267755U (en) | 2020-11-26 | 2020-11-26 | Automobile electric control power-assisted steering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214267755U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112319603A (en) * | 2020-11-26 | 2021-02-05 | 苏州绿控传动科技股份有限公司 | Automobile electric control power-assisted steering system |
-
2020
- 2020-11-26 CN CN202022789504.XU patent/CN214267755U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112319603A (en) * | 2020-11-26 | 2021-02-05 | 苏州绿控传动科技股份有限公司 | Automobile electric control power-assisted steering system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8771123B2 (en) | Reversible planetary gear assembly | |
| CN202765214U (en) | Center shaft torque sensing motor drive system for electric bicycle | |
| CN214267755U (en) | Automobile electric control power-assisted steering system | |
| CN111267954A (en) | Double-wheel drive walking steering mechanism and underwater cleaning robot applying same | |
| CN112319603A (en) | Automobile electric control power-assisted steering system | |
| CN101284562B (en) | Double electric motor driving structure for electric vehicle | |
| CN205836921U (en) | A kind of automobile pipe column type electric servo steering system | |
| CN216269506U (en) | Electric power-assisted steering device of electric piling car | |
| CN107323591A (en) | Bicycle hub motor, moped and moped running method | |
| JP4600747B2 (en) | Vehicle steering system | |
| CN111315647A (en) | Intelligent middle harmonic speed reducing motor | |
| CN217969802U (en) | Rear bridge type power-assisted motor system structure | |
| CN213771215U (en) | Electric balance weight type forklift and electric power-assisted steering system thereof | |
| CN1286697C (en) | Axis pedal motor of electric vehicle and apparatus thereof | |
| CN216734460U (en) | Electric power steering device | |
| CN210363338U (en) | Double-motor power device and pure electric vehicle | |
| JPH05116541A (en) | Drive unit for electric car | |
| JP4697518B2 (en) | Vehicle steering system | |
| CN112499525A (en) | Electric balance weight type forklift and electric power-assisted steering system thereof | |
| CN2395977Y (en) | Transmission mechanism for electric car | |
| CN217100344U (en) | Multi-mode power-assisted centrally-mounted motor structure | |
| CN221498341U (en) | Moment type coaxial centrally-mounted motor system | |
| CN217575509U (en) | Novel middle motor | |
| CN211167083U (en) | Hydraulic steering gear with electronic power steering | |
| CN2693515Y (en) | Electric wheel hub of electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |