CN215706625U - Electric power assisting device for steering machine and electric steering machine - Google Patents
Electric power assisting device for steering machine and electric steering machine Download PDFInfo
- Publication number
- CN215706625U CN215706625U CN202121512858.8U CN202121512858U CN215706625U CN 215706625 U CN215706625 U CN 215706625U CN 202121512858 U CN202121512858 U CN 202121512858U CN 215706625 U CN215706625 U CN 215706625U
- Authority
- CN
- China
- Prior art keywords
- electric power
- output shaft
- input shaft
- sleeve
- steering
- 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 electric power assisting device for a steering machine and the electric steering machine, wherein the electric power assisting device for the steering machine comprises a first electric power assisting unit and a second electric power assisting unit; the first electric power assisting unit comprises a first input shaft and a first output shaft, and the first output shaft is connected with the input shaft of the steering gear; the second electric power assisting unit comprises a second input shaft and a second output shaft, and the second input shaft is connected with a steering column of the steering wheel; the second output shaft is connected with the first input shaft through a connecting piece. The electric power assisting device comprises two electric power assisting units, wherein when a motor of one electric power assisting unit works, a motor of the other electric power assisting unit does not work; when one electric power assisting unit fails, the other electric power assisting unit works as a standby unit to provide additional power assistance for the electric power steering gear.
Description
Technical Field
The utility model relates to the field of mechanical installation, in particular to an electric power assisting device for a steering machine and the electric steering machine.
Background
An electric power steering apparatus of the related art includes a motor, an Electronic Control Unit (ECU), a sensor, a worm gear, and the like, and loses the power for steering when the motor or the ECU of the electric power steering apparatus fails or is damaged.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present invention and therefore may include information that does not constitute prior art known to a person of ordinary skill in the art.
SUMMERY OF THE UTILITY MODEL
In view of the problems in the prior art, an object of the present invention is to provide an electric power assisting device and an electric power steering apparatus for a steering gear, wherein when two electric power assisting units fail, the other electric power assisting unit works as a standby unit to provide additional power assistance for the electric power steering apparatus.
An embodiment of the present invention provides an electric assist apparatus for a steering gear, including a first electric assist unit and a second electric assist unit;
the first electric power assisting unit comprises a first input shaft and a first output shaft, and the first output shaft is connected with an input shaft of the steering gear;
the second electric power assisting unit comprises a second input shaft and a second output shaft, and the second input shaft is connected with a steering column of the steering wheel;
the second output shaft is connected with the first input shaft through a connecting piece.
According to some examples of the utility model, the first input shaft is disposed coaxially with the first output shaft;
the second input shaft and the second output shaft are arranged coaxially.
According to some examples of the present disclosure, the first electric assist unit further includes a first torque lever, a first torque angle sensor, a first worm gear in driving connection with a first output shaft, a first worm, and a first motor connected with the first worm, the first input shaft being fixedly connected with the output shaft through the first torque lever;
the second electric power assisting unit further comprises a second torsion bar, a second torque angle sensor, a second worm wheel in transmission connection with a second output shaft, a second worm and a second motor connected with the second worm, and the second input shaft and the second output shaft are fixedly connected through the second torsion bar.
According to some examples of the utility model, the connection member is a U-shaped universal joint including a driving yoke, a cross shaft, and a driven yoke, the driving yoke and the driven yoke being connected by the cross shaft;
the driving shaft fork is connected with the second output shaft;
the driven shaft fork is connected with the first input shaft.
According to some examples of the utility model, the connector comprises a sleeve and a sleeve connection seat;
the sleeve is connected with the sleeve connecting seat;
the top end of the sleeve is connected with the second output shaft;
the bottom end of the sleeve connecting seat is connected with the first input shaft.
According to some examples of the utility model, the connector comprises a sleeve and a sleeve connection seat;
the sleeve is connected with the sleeve connecting seat;
the bottom end of the sleeve connecting seat is connected with the second output shaft;
the top end of the sleeve is connected with the first input shaft.
According to some examples of the utility model, the sleeve is an internally splined sleeve.
The embodiment of the utility model also provides an electric power steering machine, which comprises a steering gear and the electric power assisting device for the steering gear, wherein an input shaft of the steering gear is connected with the first output shaft of the first electric power assisting unit.
According to some examples of this invention, the first electric assist unit further comprises a first electronic controller coupled to the first electric motor;
the second electric power assisting unit further comprises a second electronic controller connected with the second motor;
the first electronic controller and the second electronic controller are respectively connected with a CAN bus.
According to some examples of the utility model, the electric power steering further comprises an electronic monitoring controller connected to the vehicle control unit via a CAN bus.
The electric power assisting device for the steering machine comprises two electric power assisting units, wherein when a motor of one electric power assisting unit works, a motor of the other electric power assisting unit does not work; when one electric power assisting unit fails, the other electric power assisting unit works as a standby unit to provide additional power assistance for the electric power steering gear.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of an electric power assist device for a steering engine according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a connector according to an embodiment of the present invention;
FIGS. 3 and 4 are schematic views showing the construction of a connector according to another embodiment of the present invention;
fig. 5 is a schematic connection diagram of an electric power steering apparatus according to an embodiment of the present invention.
Reference numerals
100 first electric booster unit
110 first input shaft
120 first output shaft
200 second electric booster unit
210 second input shaft
220 second output shaft
300 connecting piece
310 driving shaft fork
320 cross axle
330 driven shaft fork
310' sleeve
320' sleeve connecting seat
900 steering gear
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and settings of a specific example are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
The utility model provides an electric power assisting device for a steering machine, and fig. 1 is a schematic structural diagram of the electric power assisting device for the steering machine according to an embodiment of the utility model; specifically, the electric booster includes a first electric booster unit 100 and a second electric booster unit 200;
the first electric power assisting unit 100 comprises a first input shaft 110 and a first output shaft 120, wherein the first input shaft 110 and the first output shaft 120 are coaxially arranged, and preferably, the first output shaft 120 is connected with an input shaft of a steering gear; further, the first electric power assisting unit 100 further includes a first torque rod, a first torque rotation angle sensor, a first worm gear in transmission connection with a first output shaft 120, a first worm, and a first motor connected with the first worm, wherein the first input shaft 110 and the output shaft are fixedly connected through the first torque rod; in the above structure, the rotation of the first motor drives the first output shaft 120 and the input shaft of the steering gear to rotate through the first worm and the first worm wheel;
the second electric power assisting unit 200 includes a second input shaft 210 and a second output shaft 220, and the second input shaft 220 is connected (directly or indirectly) with a steering column of a steering wheel, that is, the second input shaft is used for receiving torque from the steering wheel. Preferably, the second input shaft 210 is coaxially arranged with the second output shaft 220; further, the second electric power assisting unit 200 further includes a second torsion bar, a second torque angle sensor, a second worm wheel in transmission connection with the second output shaft 220, a second worm, and a second motor connected with the second worm, and the second input shaft 210 and the second output shaft 220 are fixedly connected through the second torsion bar.
The second output shaft 220 is connected to the first input shaft 110 by a coupling 300. Accordingly, the rotational movement of the second output shaft 220 may bring about the rotation of the first input shaft 110 via the coupling 300.
The electric power assisting device for a steering gear of the present invention comprises a first electric power assisting unit 100 and a second electric power assisting unit 200, wherein a second output shaft 220 of the second electric power assisting unit 200 is connected to the first input shaft 110 of the first electric power assisting unit 100 through a connecting member 300, and when the first electric power assisting unit 100 does not work, the first input shaft 110, the first output shaft 120 and an input shaft of a steering gear can be driven to rotate by the second electric power assisting unit 200. The first electric power assisting unit can be regarded as a main power assisting unit, the second electric power assisting unit can be regarded as an auxiliary power assisting unit, and when the main power assisting unit breaks down, the auxiliary power assisting unit serves as a standby power assisting unit to provide extra power for the steering gear, so that the stability and the service life of the electric steering gear are improved.
Fig. 2 is a schematic structural diagram of a connecting member according to an embodiment of the present invention, wherein the connecting member 300 is a U-shaped universal joint, and includes a driving yoke 310, a cross 320, and a driven yoke 330, and the driving yoke 310 and the driven yoke 330 are connected by the cross 320;
the driving shaft fork 310 is connected with the second output shaft 220;
the driven shaft yoke 330 is connected to the first input shaft 110.
The coupling 300 functions to convert the rotation of the second output shaft 220 into the rotation of the first input shaft 110, and thus, is not limited to the structure of fig. 2, and fig. 3 and 4 are schematic structural views of a coupling according to another embodiment of the present invention, which includes a sleeve 310 'and a sleeve coupling seat 320'; the sleeve 310 'is connected with the sleeve connecting seat 320'; the sleeve 310 ' may be an internally splined sleeve, and accordingly, the externally splined structure of the sleeve connecting seat 320 ' is adapted to the structure of the sleeve 310 '.
The top end of the sleeve 310' may be connected with the second output shaft 220; at this time, the bottom end of the socket coupling seat 320' is coupled to the first input shaft 110.
The top end of the sleeve 310' may also be connected to the first input shaft 110; at this time, the bottom end of the socket coupling seat 320' is coupled to the second output shaft 220.
Fig. 5 is a schematic connection diagram of an electric power steering apparatus according to an embodiment of the present invention, the electric power steering apparatus includes a steering gear 900 and the electric power assist device for a steering gear, and an input shaft of the steering gear 900 is connected to a first output shaft of the first electric power assist unit. The first electric power assisting unit can be fixedly connected with a shell of the steering gear through a support on the first electric power assisting unit and a plurality of bolts, and the second electric power assisting unit can be fixedly connected with a frame of a vehicle through the support on the second electric power assisting unit.
In practical use, when the first electric power steering unit 100 of the electric power steering apparatus fails, the second motor of the second electric power steering unit 200 may be activated to provide additional power to the steering apparatus, so that the electric power steering apparatus operates stably.
In some embodiments, the first electric assist unit may further include a first electronic controller coupled to the first electric motor; the first electronic controller is used for receiving the operation parameters of the first motor and generating a rotating speed signal of the first motor according to the received operation parameters;
the second electric assist unit may further include a second electronic controller connected to the second electric motor; the second electronic controller is used for receiving the operation parameters of the second motor and generating a rotating speed signal of the second motor according to the received operation parameters;
the first electronic controller and the second electronic controller are respectively connected with a CAN bus.
The electric steering gear CAN also comprise an electronic monitoring controller, and the electronic monitoring controller is connected with the vehicle control unit through a CAN bus and is used for monitoring the running state of the first motor. Meanwhile, the first electronic controller and the second electronic controller CAN send the running state parameters of the first motor and the second motor to the whole vehicle controller through the CAN bus.
When the electronic monitoring controller monitors that the running state of the first motor is a fault state, the electronic monitoring controller sends a running fault signal of the first motor to the vehicle control unit, and at the moment, the vehicle control unit sends an instruction for starting the second motor to the second electronic controller, so that the second electric power assisting unit works to provide power assistance for the electric steering engine.
In summary, the present invention provides an electric power assisting device and an electric power steering apparatus, wherein the electric power assisting device includes a first electric power assisting unit and a second electric power assisting unit; the first electric power assisting unit comprises a first input shaft and a first output shaft, and the first output shaft is connected with an input shaft of the steering gear; the second electric power assisting unit comprises a second input shaft and a second output shaft, and the second input shaft is connected with a steering column of the steering wheel; the second output shaft is connected with the first input shaft through a connecting piece. The electric power assisting device comprises two electric power assisting units, wherein when a motor of one electric power assisting unit works, a motor of the other electric power assisting unit does not work; when one electric power assisting unit fails, the other electric power assisting unit works as a standby unit to provide additional power assistance for the electric power steering gear.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (10)
1. An electric power assist device for a steering machine, characterized by comprising a first electric power assist unit and a second electric power assist unit;
the first electric power assisting unit comprises a first input shaft and a first output shaft, and the first output shaft is connected with an input shaft of the steering gear;
the second electric power assisting unit comprises a second input shaft and a second output shaft, and the second input shaft is connected with a steering column of the steering wheel;
the second output shaft is connected with the first input shaft through a connecting piece.
2. The electric assist device for a steering machine according to claim 1, characterized in that:
the first input shaft and the first output shaft are arranged coaxially;
the second input shaft and the second output shaft are arranged coaxially.
3. The electric assist device for a steering machine according to claim 1, characterized in that:
the first electric power assisting unit further comprises a first torque rod, a first torque rotation angle sensor, a first worm wheel in transmission connection with a first output shaft, a first worm, and a first motor connected with the first worm, wherein the first input shaft is fixedly connected with the output shaft through the first torque rod;
the second electric power assisting unit further comprises a second torsion bar, a second torque angle sensor, a second worm wheel in transmission connection with a second output shaft, a second worm and a second motor connected with the second worm, and the second input shaft and the second output shaft are fixedly connected through the second torsion bar.
4. The electric assist device for a steering machine according to claim 1, wherein the connecting member is a U-shaped universal joint including a driving yoke, a cross shaft, and a driven yoke, the driving yoke and the driven yoke being connected by the cross shaft;
the driving shaft fork is connected with the second output shaft;
the driven shaft fork is connected with the first input shaft.
5. The electric assist device for a steering machine according to claim 1, characterized in that the connecting member includes a sleeve and a sleeve attachment seat;
the sleeve is connected with the sleeve connecting seat;
the top end of the sleeve is connected with the second output shaft;
the bottom end of the sleeve connecting seat is connected with the first input shaft.
6. The electric assist device for a steering machine according to claim 1, characterized in that the connecting member includes a sleeve and a sleeve attachment seat;
the sleeve is connected with the sleeve connecting seat;
the bottom end of the sleeve connecting seat is connected with the second output shaft;
the top end of the sleeve is connected with the first input shaft.
7. The electric assist device for a steering machine according to claim 5 or 6, characterized in that the sleeve is an internally splined sleeve.
8. An electric power steering apparatus comprising a steering gear and the electric power assist device for a steering apparatus according to any one of claims 1 to 7, wherein an input shaft of the steering gear is connected to a first output shaft of the first electric power assist unit.
9. The electric power steering machine of claim 8, wherein the first electric assist unit further includes a first electronic controller connected to the first electric motor;
the second electric power assisting unit further comprises a second electronic controller connected with the second motor;
the first electronic controller and the second electronic controller are respectively connected with a CAN bus.
10. The electric power steering of claim 9, further comprising an electronic monitoring controller connected to the vehicle control unit via a CAN bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121512858.8U CN215706625U (en) | 2021-07-05 | 2021-07-05 | Electric power assisting device for steering machine and electric steering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121512858.8U CN215706625U (en) | 2021-07-05 | 2021-07-05 | Electric power assisting device for steering machine and electric steering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215706625U true CN215706625U (en) | 2022-02-01 |
Family
ID=80047282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121512858.8U Active CN215706625U (en) | 2021-07-05 | 2021-07-05 | Electric power assisting device for steering machine and electric steering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215706625U (en) |
-
2021
- 2021-07-05 CN CN202121512858.8U patent/CN215706625U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20150360716A1 (en) | Independent Supplementary Electrically Assisted Power Steering System | |
| CN110588767A (en) | Multi-motor redundancy device and control method of wire-controlled steering system | |
| JP5088530B2 (en) | Vehicle steering system | |
| JP4620434B2 (en) | Electric steering assist device | |
| CN114179605A (en) | Motor redundancy multifunctional integrated wheel module and control method thereof | |
| JPWO2007074723A1 (en) | Electric power steering device | |
| CN112829823A (en) | Electric recirculating ball type power steering system | |
| JPH08258728A (en) | Electric power steering device | |
| CN203876816U (en) | Vehicle steer-by-wire device with flexible redundancy mechanism | |
| CN209795595U (en) | Double-motor synchronous driving steering actuating mechanism of unmanned automobile | |
| CN215706625U (en) | Electric power assisting device for steering machine and electric steering machine | |
| CN107813865B (en) | Steering system and vehicle | |
| CN101983886B (en) | Anti-collision and anti-theft steering column for vehicle | |
| JP2006205887A (en) | Support structure for power steering assisting device | |
| JP2006062535A (en) | Electric steering auxiliary device | |
| JP4899728B2 (en) | Column-type electric power steering device | |
| CN108657264A (en) | A kind of road feel torque simulation mechanism and vehicle | |
| JP2006205886A (en) | Support structure for power steering assisting device | |
| CN101351376A (en) | Electric power steering device | |
| JP4600747B2 (en) | Vehicle steering system | |
| CN107867317A (en) | Steering column for vehicle | |
| JP5293695B2 (en) | Coupling structure of universal joint and shaft for steering device | |
| CN209888923U (en) | Electric power steering device of commercial vehicle | |
| CN213534836U (en) | Electric steering control system and device | |
| CN211869502U (en) | Steering wheel device suitable for steer-by-wire system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |