CN115447668A - Reverse-transmission adjustable power-assisted steering gear shaft system - Google Patents
Reverse-transmission adjustable power-assisted steering gear shaft system Download PDFInfo
- Publication number
- CN115447668A CN115447668A CN202211050906.5A CN202211050906A CN115447668A CN 115447668 A CN115447668 A CN 115447668A CN 202211050906 A CN202211050906 A CN 202211050906A CN 115447668 A CN115447668 A CN 115447668A
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- cavity
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- pull rod
- steering
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- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 230000000903 blocking effect Effects 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000012530 fluid Substances 0.000 description 8
- 230000010365 information processing Effects 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 230000003134 recirculating effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/22—Arrangements for reducing or eliminating reaction, e.g. vibration, from parts, e.g. wheels, of the steering system
- B62D7/228—Arrangements for reducing or eliminating reaction, e.g. vibration, from parts, e.g. wheels, of the steering system acting between the steering gear and the road wheels, e.g. on tie-rod
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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
- B62D5/0466—Controlling the motor for returning the steering wheel to neutral position
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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
- B62D5/0469—End-of-stroke control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/20—Links, e.g. track rods
Abstract
The reverse transmission adjustable power-assisted steering gear shaft system comprises a steering shaft, an auxiliary motor and a sleeve rod. The steering shaft and the output shaft of the auxiliary motor are respectively connected with the loop bar for transmission through gear engagement. A first hydraulic cavity and a second hydraulic cavity are arranged in the loop bar. The first hydraulic cavity is internally provided with a first pull rod, and the second hydraulic cavity is internally provided with a second pull rod. And the loop bar is provided with a first hydraulic pump and a second hydraulic pump. Compared with the prior art, this application has the loop bar that designs into the hydraulic stem form with the pull rod among the prior art, absorbs reverse driven impact through the flexible of the first pull rod of control loop bar both sides and second pull rod to make the loop bar slowly return just through auxiliary motor. Not only can reduce contrary efficiency, can also adjust it, and simple structure, manufacturing cost is lower, has stronger practicality.
Description
Technical Field
The invention belongs to the technical field of new energy automobile steering devices, and particularly relates to a reverse-transmission adjustable power-assisted steering gear shaft system.
Background
The existing steering gear used on the new energy automobile is mainly developed from the steering gear of the traditional fuel automobile, and the basic structure of the steering gear is represented by a rack-and-pinion type steering gear, a recirculating ball type steering gear, a worm crank pin type steering gear and the like. The rack-and-pinion type is mainly completed from rotary motion to linear motion or approximate linear motion through the matching of the rack and pinion, and has simple structure and easy manufacture. The recirculating ball type is driven by the screw and the nut in a matching way, wherein the screw and the nut are not in direct contact, and a plurality of steel balls are arranged between the screw and the nut to realize rolling friction. The worm crank finger pin type uses a steering worm as a driving part and a finger pin arranged at the end part of a crank on a rocker shaft as a driven part, and the two are matched for transmission.
In the main-flow steering gear, the recirculating ball type and worm crank finger type steering systems have complex structures and higher production cost, and are not beneficial to the control of the production cost, so that the common cars mostly use the rack and pinion steering gear. The rack and pinion steering gear has the advantages of simple and compact structure, high rigidity, low cost, sensitive steering, small volume, convenient arrangement and the like. However, the rack and pinion steering gear has a higher reverse efficiency than other types of steering gears, and when an automobile runs on an uneven road surface, most of the impact force generated between the steering wheel and the road surface can be reversely transmitted to the steering wheel, so that the backlash is caused, the driver is nervous, and the driving direction of the automobile is difficult to accurately control. In this regard, there is also a large space for the existing rack and pinion steering system.
The present application is therefore further designed and improved upon in view of some of the above circumstances in the prior art.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a reverse-transmission adjustable power-assisted steering gear shaft system, wherein a pull rod in the prior art is designed into a loop bar in a hydraulic rod form, the impact of reverse transmission is absorbed by controlling the extension and retraction of a first pull rod and a second pull rod on two sides of the loop bar, and the loop bar is slowly straightened by an auxiliary motor. Not only can reduce contrary efficiency, can also adjust it, and simple structure, manufacturing cost is lower, has stronger practicality.
In order to solve the above technical problems, the present invention is achieved by the following technical means.
A reverse transmission adjustable power-assisted steering gear shaft system comprises a steering shaft, an auxiliary motor and a sleeve rod. The steering shaft and the output shaft of the auxiliary motor are respectively connected with the loop bar for transmission through gear engagement.
A first hydraulic cavity and a second hydraulic cavity are arranged in the loop bar. The hydraulic cylinder is characterized in that a first pull rod is arranged in the first hydraulic cavity, a first piston is arranged at one end of the first pull rod, the first piston divides the first hydraulic cavity into a working cavity A and a working cavity B, and the working cavity A is located on one side, connected with the first pull rod, of the first piston. The second hydraulic cavity is internally provided with a second pull rod, one end of the second pull rod is provided with a second piston, the second piston divides the second hydraulic cavity into a working C cavity and a working D cavity, and the working C cavity is positioned on one side of the second piston connected with the second pull rod. And the loop bar is provided with a first hydraulic pump and a second hydraulic pump. The first hydraulic pump is connected with a working cavity A and a working cavity C, and the second hydraulic pump is connected with a working cavity B and a working cavity D.
When the automobile provided with the steering system runs and meets reverse transmission, the first pull rod or the second pull rod firstly retracts, and then the sleeve rod slowly returns to the right through the auxiliary motor. The purpose of adjusting the reverse efficiency can be achieved by controlling the first hydraulic pump, the second hydraulic pump and the auxiliary motor.
In a preferred embodiment, the first hydraulic chamber and the second hydraulic chamber are provided with oil pressure sensing units on side walls at both ends. The oil pressure sensing unit can detect the oil pressure in the working cavity A, the working cavity B, the working cavity C and the working cavity D and transmit signals to the automobile control system.
In a preferred embodiment, oil ports are formed in the side walls of the two ends of the first hydraulic cavity and the second hydraulic cavity, and the oil ports are connected with the first hydraulic pump or the second hydraulic pump through oil pipes. Oil in the working cavity A and the working cavity C and oil in the working cavity B and the working cavity D can be communicated with each other to help the loop bar to return to the right. The hydraulic fluid port and the oil pressure sensing unit are symmetrically distributed, and interference caused by oil liquid flowing to detection of the oil pressure sensing unit is avoided.
In a preferred embodiment, all be equipped with the stopper that blocks of symmetric distribution on first hydraulic pressure chamber and the second hydraulic pressure chamber lateral wall, block stopper tip and first pull rod or the slip butt of second pull rod side, the hydraulic fluid port distributes with the oil pressure sensing unit and blocks the stopper both sides. Blocking the stopper and can separating hydraulic fluid port and oil pressure sensing unit and avoid causing the interference, can restrict the removal of first pull rod or second pull rod simultaneously.
In a preferred embodiment, the length of the blocking limiting block is greater than the calibers of the oil port and the oil pressure sensing unit. Make hydraulic fluid port and oil pressure sensing unit be located the restriction position of blocking the stopper, avoid first piston or second piston to block up hydraulic fluid port and oil pressure sensing unit.
In a preferred embodiment, the engaging surface of the sleeve rod is provided with a first tooth portion and a second tooth portion, and the first tooth portion and the second tooth portion are symmetrically arranged, so that the sleeve rod is uniformly stressed. The steering shaft is provided with a steering tooth part, an output shaft of the auxiliary motor is provided with an auxiliary tooth part, the steering tooth part is meshed with the first tooth part, and the auxiliary tooth part is meshed with the second tooth part. The steering structure is simple and reliable, and is convenient to produce and manufacture.
In a preferred embodiment, a steering sensing unit is mounted on the steering shaft. The steering sensing unit is used for detecting the steering of the steering shaft, and the signal of the steering sensing unit and the signal of the oil pressure sensing unit are matched to determine whether the steering system is in a forward transmission state or a reverse transmission state.
Compared with the prior art, the method has the following beneficial effects: the utility model provides a power assisted steering pinion system with adjustable reverse transmission, designs into the loop bar of hydraulic stem form with the pull rod among the prior art, absorbs reverse transmission's impact through the flexible of the first pull rod of control loop bar both sides and second pull rod to make the loop bar slowly return through auxiliary motor and just. Not only can reduce contrary efficiency, can also adjust it, and simple structure, manufacturing cost is lower, has stronger practicality.
Drawings
Fig. 1 is a schematic perspective view of embodiment 1.
Fig. 2 is a sectional view showing an internal structure of the loop bar.
Fig. 3 is a cross-sectional view of the loop bar at working C-cavity.
Fig. 4 is a schematic view of the internal structure of the loop bar body.
Fig. 5 is a schematic perspective view of embodiment 2.
The following are the reference signs in the drawings of the specification:
1. a steering shaft; 11. a steering tooth portion;
2. an auxiliary motor; 21. an output shaft; 22. an auxiliary tooth portion;
3. a loop bar; 31. a first tooth portion; 32. a second tooth portion; 33. a first hydraulic chamber; 331. a working cavity A; 332. a working cavity B; 34. a second hydraulic chamber; 341. a working cavity C; 342. a working D cavity; 35. an oil port; 36. blocking the limiting block;
4. an oil pressure sensing unit;
5. a first pull rod; 51. a first piston;
6. a second pull rod; 61. a second piston;
7. a first hydraulic pump;
8. a second hydraulic pump;
9. a steering sensing unit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The embodiments described below by referring to the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout, are exemplary only for explaining the present invention, and are not construed as limiting the present invention.
In describing the present invention, it is to be understood that the terms: the terms center, longitudinal, lateral, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, and thus, should not be construed as limiting the present invention. Furthermore, the terms: first, second, etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features shown. In describing the present invention, unless otherwise expressly specified or limited, the terms: mounting, connecting, etc. should be understood broadly, and those skilled in the art will understand the specific meaning of the terms in this application as they pertain to the particular situation.
Example 1
Referring to fig. 1 to 4, a reverse drive adjustable power steering pinion system includes a steering shaft 1, an auxiliary motor 2, and a sleeve lever 3. The steering shaft 1 is connected with a steering wheel of an automobile, and the loop bar 3 is connected with a wheel structure. The steering shaft 1 and the output shaft 21 of the auxiliary motor 2 are respectively connected with the loop bar 3 for transmission through gear engagement. The structure is as follows: the meshing surface of the loop bar 3 is provided with a first tooth part 31 and a second tooth part 32, and the first tooth part 31 and the second tooth part 32 are symmetrically arranged, so that the loop bar 3 is uniformly stressed. The steering shaft 1 is provided with a steering gear portion 11, the output shaft 21 of the auxiliary motor 2 is provided with an auxiliary gear portion 22, the steering gear portion 11 is meshed with the first gear portion 31, and the auxiliary gear portion 22 is meshed with the second gear portion 32. The steering structure is simple and reliable, and is convenient to produce and manufacture.
In this embodiment, a first hydraulic chamber 33 and a second hydraulic chamber 34 are provided in the loop bar 3. And the side walls at two ends of the first hydraulic cavity 33 and the second hydraulic cavity 34 are respectively provided with an oil pressure sensing unit 4. A first pull rod 5 is arranged in the first hydraulic cavity 33, a first piston 51 is arranged at one end of the first pull rod 5, the first piston 51 divides the first hydraulic cavity 33 into a working cavity A and a working cavity B, and the working cavity A is positioned on one side of the first piston 51 connected with the first pull rod 5. The built-in second pull rod 6 that is equipped with in second hydraulic chamber 34, second piston 61 has been installed to second pull rod 6 one end, second piston 61 separates into work C chamber and work D chamber with second hydraulic chamber 34, work C chamber is located one side that second piston 61 is connected with second pull rod 6. The oil pressure sensing unit 4 can detect the oil pressure in the working cavity A, the working cavity B, the working cavity C and the working cavity D and transmit signals to the automobile control system.
In this embodiment, the loop bar 3 is provided with a first hydraulic pump 7 and a second hydraulic pump 8. All be equipped with the hydraulic fluid port 35 on the lateral wall at first hydraulic pressure chamber 33 and second hydraulic pressure chamber 34 both ends, first hydraulic pump 7 passes through the hydraulic fluid port 35 in oil pipe connection work A chamber and work C chamber, second hydraulic pump 8 passes through the hydraulic fluid port 35 in oil pipe connection work B chamber and work D chamber. Oil in the working cavity A and the working cavity C and oil in the working cavity B and the working cavity D can be communicated with each other to help the loop bar 3 to return to the right. The oil port 35 and the oil pressure sensing unit 4 are symmetrically distributed, so that interference caused by the flowing of oil liquid to the detection of the oil pressure sensing unit 4 is avoided.
Particularly, the side walls of the first hydraulic cavity 33 and the second hydraulic cavity 34 are provided with symmetrically distributed blocking limit blocks 36, the end parts of the blocking limit blocks 36 are in sliding abutting contact with the side surfaces of the first pull rod 5 or the second pull rod 6, and the oil ports 35 and the oil pressure sensing unit 4 are distributed on two sides of the blocking limit blocks 36. The blocking limiting block 36 can separate the oil port 35 from the oil pressure sensing unit 4 to avoid interference, and can limit movement of the first pull rod 5 or the second pull rod 6. The length of the blocking limiting block 36 is larger than the calibers of the oil port 35 and the oil pressure sensing unit 4. The oil port 35 and the oil pressure sensing unit 4 are located in the limit position of the blocking limit block 36, and the first piston 51 or the second piston 61 is prevented from blocking the oil port 35 and the oil pressure sensing unit 4.
Preferably, a steering sensing unit 9 is mounted on the steering shaft 1. The steering sensing unit 9 is used for detecting the steering of the steering shaft 1, and the cooperation between the signal of the steering sensing unit 9 and the signal of the oil pressure sensing unit 4 is used for determining whether the steering system is in a forward transmission state or a reverse transmission state. This application turn to sensing unit 9, oil pressure sensing unit 4 and the information processing control system of car be connected, first hydraulic pump 7, second hydraulic pump 8 and auxiliary motor 2 control through the information processing control system of car.
When the automobile provided with the steering system runs and meets reverse transmission, the first pull rod 5 or the second pull rod 6 retracts firstly, and then the sleeve rod 3 slowly returns to the right through the auxiliary motor 2. The purpose of adjusting the reverse efficiency can be achieved by controlling the first hydraulic pump 7, the second hydraulic pump 8 and the auxiliary motor 2.
The specific principle is as follows: when the automobile wheels are driven to rotate left, the first pull rod 5 extends out, and the second pull rod 6 retracts; when the automobile wheel passively turns to the right, the first pull rod 5 retracts, and the second pull rod 6 extends.
When the automobile wheel passively turns left, at the moment, the first piston 51 and the second piston 61 have the tendency of moving left relative to the sleeve rod 3, the pressure of the working A cavity and the working D cavity becomes larger, the pressure of the working B cavity and the pressure of the working C cavity are reduced, the pressure of the working A cavity is larger than that of the working C cavity, and the pressure of the working D cavity is larger than that of the working B cavity. After the pressure signal is transmitted to an information processing control system of the automobile, the information processing control system sends an instruction to the first hydraulic pump 7 and the second hydraulic pump 8, the first hydraulic pump 7 and the second hydraulic pump 8 balance oil in each working cavity through oil liquid transfer, so that the first pull rod 5 extends out, and the second pull rod 6 retracts. Meanwhile, the information processing control system sends a signal to the auxiliary motor 2, the output shaft 21 of the auxiliary motor 2 rotates according to a set speed to drive the sleeve rod 3 to move left, so that the sleeve rod 3 is aligned back relative to the first pull rod 5 and the second pull rod 6, and the movement of the sleeve rod 3 drives the rotating shaft to align back. Wherein, the return speed of the loop bar 3 can be controlled by controlling the rotating speed of the auxiliary motor 2, thereby achieving the purpose of reverse rotation adjustment. The right turn is reversed.
Example 2
Referring to fig. 5, as another embodiment, the steering shaft 1 is not provided with a steering sensing unit 9. It differs from example 1 in that: embodiment 1 judges the forward/reverse transmission state of the steering system by the steering sensing unit 9. Embodiment 2 judges the forward/reverse transmission state of the steering system by discriminating the signal of the oil pressure sensing unit 4.
The principle is as follows: when the steering wheel is set to turn left, the first pull rod 5 extends out, and the second pull rod 6 retracts; when the steering wheel is turned to the right, the first pull rod 5 is retracted, and the second pull rod 6 is extended.
When the steering wheel is to turn left, the loop bar 3 has a tendency to move to the left. At this time, the first piston 51 and the second piston 61 have a tendency to move rightward relative to the stem 3, and the pressures of the working a chamber and the working D chamber decrease, and the pressures of the working B chamber and the working C chamber increase, and the pressure of the working a chamber is smaller than that of the working C chamber, and the pressure of the working D chamber is smaller than that of the working B chamber. The pressure signal is transmitted to an information processing control system of the automobile, the information processing control system judges that the steering system is in a forward transmission state according to the pressure signal, then a signal is sent to the auxiliary motor 2 to carry out auxiliary transmission, and at the moment, the first hydraulic pump 7 and the second hydraulic pump 8 are in a stop state, so that the sleeve rod 3 drives the first pull rod 5 and the second pull rod 6 to move leftwards simultaneously as a whole, and the left steering is completed. The right turn is reversed.
Compared with the prior art, this application has the loop bar 3 that designs into the hydraulic stem form with the pull rod among the prior art, absorbs reverse driven impact through the flexible of the first pull rod 5 and the second pull rod 6 of control loop bar 3 both sides to make loop bar 3 slowly return to just through auxiliary motor 2. Not only can reduce contrary efficiency, can also adjust it, and simple structure, manufacturing cost is lower, has stronger practicality.
The scope of the present invention includes, but is not limited to, the above embodiments, and the present invention is defined by the appended claims, and any alterations, modifications, and improvements that may occur to those skilled in the art are all within the scope of the present invention.
Claims (7)
1. The reverse transmission adjustable power-assisted steering gear shaft system is characterized by comprising a steering shaft (1), an auxiliary motor (2) and a sleeve rod (3); the steering shaft (1) and an output shaft (21) of the auxiliary motor (2) are respectively connected with the loop bar (3) for transmission through gear engagement;
a first hydraulic cavity (33) and a second hydraulic cavity (34) are arranged in the loop bar (3); a first pull rod (5) is arranged in the first hydraulic cavity (33), a first piston (51) is arranged at one end of the first pull rod (5), the first piston (51) divides the first hydraulic cavity (33) into a working cavity A and a working cavity B, and the working cavity A is positioned on one side of the first piston (51) connected with the first pull rod (5); a second pull rod (6) is arranged in the second hydraulic cavity (34), a second piston (61) is arranged at one end of the second pull rod (6), the second piston (61) divides the second hydraulic cavity (34) into a working C cavity and a working D cavity, and the working C cavity is located on one side, connected with the second pull rod (6), of the second piston (61);
a first hydraulic pump (7) and a second hydraulic pump (8) are arranged on the loop bar (3); the first hydraulic pump (7) is connected with a working cavity A and a working cavity C, and the second hydraulic pump (8) is connected with a working cavity B and a working cavity D.
2. A reverse drive adjustable power steering gear shaft system according to claim 1, wherein the side walls of both ends of the first hydraulic chamber (33) and the second hydraulic chamber (34) are provided with oil pressure sensing units (4).
3. The reverse-transmission adjustable power-assisted steering gear shaft system according to claim 2, wherein oil ports (35) are formed in the side walls of the two ends of the first hydraulic cavity (33) and the second hydraulic cavity (34), and the oil ports (35) are connected with the first hydraulic pump (7) or the second hydraulic pump (8) through oil pipes; the oil ports (35) and the oil pressure sensing units (4) are symmetrically distributed.
4. The reverse-transmission adjustable power-assisted steering gear shaft system according to claim 3, wherein blocking limiting blocks (36) are symmetrically arranged on the side walls of the first hydraulic cavity (33) and the second hydraulic cavity (34), the end parts of the blocking limiting blocks (36) are in sliding abutting joint with the side surfaces of the first pull rod (5) or the second pull rod (6), and the oil ports (35) and the oil pressure sensing unit (4) are distributed on two sides of the blocking limiting blocks (36).
5. A reverse transmission adjustable power-assisted steering gear shaft system according to claim 4, characterized in that the length of the blocking limiting block (36) is larger than the calibers of the oil port (35) and the oil pressure sensing unit (4).
6. A reverse drive adjustable power steering gear shaft system according to claim 1, characterised in that the meshing surface of the sleeve rod (3) is provided with a first tooth portion (31) and a second tooth portion (32), the first tooth portion (31) and the second tooth portion (32) being symmetrically arranged; the steering gear mechanism is characterized in that a steering gear part (11) is arranged on the steering shaft (1), an auxiliary gear part (22) is arranged on an output shaft (21) of the auxiliary motor (2), the steering gear part (11) is meshed with the first gear part (31), and the auxiliary gear part (22) is meshed with the second gear part (32).
7. A reverse drive adjustable power steering gear shaft system according to claim 1, characterised in that the steering shaft (1) is provided with a steering sensing unit (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211050906.5A CN115447668A (en) | 2022-08-31 | 2022-08-31 | Reverse-transmission adjustable power-assisted steering gear shaft system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211050906.5A CN115447668A (en) | 2022-08-31 | 2022-08-31 | Reverse-transmission adjustable power-assisted steering gear shaft system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115447668A true CN115447668A (en) | 2022-12-09 |
Family
ID=84301275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211050906.5A Pending CN115447668A (en) | 2022-08-31 | 2022-08-31 | Reverse-transmission adjustable power-assisted steering gear shaft system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115447668A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000050697A (en) * | 1999-01-13 | 2000-08-05 | 정몽규 | Vacuum type power steering system |
| US6269903B1 (en) * | 1998-09-15 | 2001-08-07 | Daimlerchrysler Ag | Steering system for a vehicle |
| KR100651139B1 (en) * | 2005-10-18 | 2006-11-29 | 주식회사 만도 | Double pinion type electric power steering apparatus |
| CN109591886A (en) * | 2018-11-30 | 2019-04-09 | 三汽车起重机械有限公司 | Vehicle assist steering system and automatic driving vehicle |
| CN110228521A (en) * | 2019-06-10 | 2019-09-13 | 吉林大学 | A kind of multimode steering system of vehicle |
-
2022
- 2022-08-31 CN CN202211050906.5A patent/CN115447668A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6269903B1 (en) * | 1998-09-15 | 2001-08-07 | Daimlerchrysler Ag | Steering system for a vehicle |
| KR20000050697A (en) * | 1999-01-13 | 2000-08-05 | 정몽규 | Vacuum type power steering system |
| KR100651139B1 (en) * | 2005-10-18 | 2006-11-29 | 주식회사 만도 | Double pinion type electric power steering apparatus |
| CN109591886A (en) * | 2018-11-30 | 2019-04-09 | 三汽车起重机械有限公司 | Vehicle assist steering system and automatic driving vehicle |
| CN110228521A (en) * | 2019-06-10 | 2019-09-13 | 吉林大学 | A kind of multimode steering system of vehicle |
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