CN109987134A - A kind of automobile-used variable ratio gear rack gear steering system and a kind of vehicle - Google Patents
A kind of automobile-used variable ratio gear rack gear steering system and a kind of vehicle Download PDFInfo
- Publication number
- CN109987134A CN109987134A CN201711480479.3A CN201711480479A CN109987134A CN 109987134 A CN109987134 A CN 109987134A CN 201711480479 A CN201711480479 A CN 201711480479A CN 109987134 A CN109987134 A CN 109987134A
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- rack
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- planet row
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- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 238000006073 displacement reaction Methods 0.000 claims abstract description 25
- 230000005611 electricity Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000011217 control strategy Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
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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
- B62D5/0421—Electric motor acting on or near steering gear
-
- 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
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
Abstract
The present invention relates to a kind of automobile-used variable ratio gear rack gear steering system and a kind of vehicles, steering system includes steering wheel power input mechanism, planet row, helps displacement motor, rack and pinion steering gear and at least one steering assist motor, help the first end of displacement motor transmission connection planet row, the second end of steering wheel power input mechanism transmission connection planet row, the third end of planet row is by turning to planet row output shaft output transmission connection rack and pinion steering gear, each steering assist motor transmission connection rack and pinion steering gear.When the steering force being manually entered and the steering force for helping displacement motor to export cannot be met the requirements, steering assist motor exports corresponding power steering square as needed, is eventually transferred on wheel, reaches the steering purpose of vehicle.By the way that steering assist motor is arranged, positive power steering or counter steering power-assisted are provided, meets different steering situation needs, improves the handling comfort of driver, and improve the driving safety of vehicle.
Description
Technical field
The present invention relates to a kind of automobile-used variable ratio gear rack gear steering system and a kind of vehicles.
Background technique
Steering system is the mechanism for keeping or changing vehicle traveling direction, motor turning when driving, guarantee each
Coordinated angle relation between deflecting roller.It is the manipulation device that driver is in close contact therewith on automobile, handling
It is directly related to the active safety of automobile and the driving experience of driver.There is solid due to transmission ratio is fixed for conventional steering system
Some defects, and when variable ratio steering system can realize low speed, turns to more directly slimmer and more graceful, when high speed, which turns to, more steady more pacifies
Entirely.Automatically controlledization is the inevitable requirement that automotive technology development proposes steering system, and improves driver comfort and safety
Basic Ways.
Existing medium-sized commercial vehicle mostly uses hydraulic circulation ball-type steering system, there are steering mechanism's complexity, time active drafts greatly,
The problems such as transmission ratio is fixed.In addition, the carrying of electric gear rack gear diverter is smaller, it is not met by medium-sized commercial vehicle needs.
Application publication number is CN101700786A, entitled " the car circulating ball type with variable ratio function is electric
Dynamic servo steering system and its control method " Chinese patent application provide a kind of car circulation with variable ratio function
Ball electric power-assisted steering system.The system includes two deceleration mechanisms: the first deceleration mechanism for being connected with assist motor and
The second deceleration mechanism between torque sensor and recirculating ball-type steering, angle electrical machinery is changed by additional rotation angle control to be turned
To transmission ratio.The system is recirculating ball-type steering, and there are steering mechanism's complexity, and it is big that steering moment controls difficulty.
Application publication number be CN107310621A, it is entitled " for vehicle variable ratio steering gear and have
Its vehicle " Chinese patent application provide a kind of variable ratio steering gear for vehicle.The patent is by upper
Between upper eccentric structure and lower eccentric structure are set on axis and lower jackshaft so that the transmission ratio-variable of diverter.But the patent
There are steering resisting moment transmission efficiency is poor, it is unobvious to lead to the problem of road feel, and mainly apply on steering column, there are mechanisms
Complicated, difficult arrangement problem.
Therefore, it needs to propose a kind of variable ratio gear rack gear steering system, is particularly suitable for medium-sized commercial vehicle, solve existing
There is diverter is existing return principal-employment, carry the bottleneck problems such as limited.
In order to solve the above-mentioned technical problem, application publication number CN104627233A, it is entitled " be based on single planet
The automobile active steering coupling device and steering system of train " Chinese patent application disclose a kind of automobile steering system, wrap
Include steering wheel, active steering coupling device and rack and pinion steering gear, active steering coupling mechanism include input shaft, planet row and
Output shaft, steering wheel connect the input shaft in active steering coupling device by corresponding power input mechanism, input axis connection
Planet carrier, planetary gear setting are engaged on planet carrier and respectively with sun gear and gear ring, and displacement motor is helped to connect sun gear, gear ring
Output shaft is connected, output shaft is connect with rack and pinion steering gear, and steering force is finally passed to wheel by rack and pinion steering gear, real
It turns now to.Although the steering system can be realized variable ratio steering, due to needing different steerings under different operating conditions
Power needs different transmission ratios, such as: for vehicle in high speed, the subtle movement of steering wheel can all seem too sensitive, because
This, it usually needs biggish transmission ratio, that is, need heavier steering feeling by, give driver one steady safe feeling, and
When vehicle is in low speed, it usually needs lesser transmission ratio guarantees Vehicular turn flexibly, lightly.So when what is be manually entered turns
When not being able to satisfy above-mentioned requirements to power and the steering force for helping displacement motor to export, i.e., steering force is not in a suitable range
When, will result in bad steering feeling by.
Summary of the invention
The object of the present invention is to provide a kind of automobile-used variable ratio gear rack gear steering systems, are manually entered to solve to work as
Steering force and the steering force that helps displacement motor to export will cause when cannot meet the requirements bad steering feeling by the problem of.This hair
It is bright while a kind of vehicle being provided.
To achieve the above object, the present invention includes following technical scheme.
System schema one: this programme provides a kind of automobile-used variable ratio gear rack gear steering system, including steering wheel power
Input mechanism, planet row help displacement motor and rack and pinion steering gear, in the sun gear of the planet row, planet carrier and gear ring
One is first end, a second end, a third end, described that displacement motor is helped to be sequentially connected the first end, the side
To the disk power input mechanism transmission connection second end, the third end is by turning to the output transmission connection of planet row output shaft
The rack and pinion steering gear, the steering system further include at least one steering assist motor, each steering assist motor transmission
The rack and pinion steering gear is connected, to provide power steering.
Other than the steering force being manually entered and the steering force for helping displacement motor to export, power steering electricity can also be passed through
Machine exports corresponding power steering to rack and pinion steering gear, then, when the steering force being manually entered and displacement motor is helped to export
Steering force when cannot meet the requirements, steering assist motor exports corresponding power steering square as needed, is eventually transferred to vehicle
On wheel, reach the steering purpose of vehicle.Wherein, vehicle is in high speed, if the steering force being manually entered and helping displacement motor defeated
Steering force needed for steering force out is added not enough, then, steering assist motor is corresponding just to rack and pinion steering gear output
To power steering, increase the steering force of reality output, meet the requirements；If the steering force being manually entered and helping displacement motor defeated
Steering force out, which is added, exceeds required steering force, it is possible to which it is anti-to rack and pinion steering gear output to control steering assist motor
To power steering, the steering force of reality output can reduce, and to meet the requirements, therefore, be guaranteed by steering assist motor
Steering force makes vehicle give driver one steady safe steering feel in high speed in a suitable range.Similarly, work as vehicle
In low speed, if the steering force being manually entered is added steering force required not enough with the steering force for helping displacement motor to export,
So, steering assist motor exports corresponding positive power steering to rack and pinion steering gear, increases the steering of reality output
Power is met the requirements；If the steering force being manually entered is added beyond required steering force with the steering force for helping displacement motor to export, that
, can control steering assist motor and export reversed power steering to rack and pinion steering gear, it will be able to reduce reality output
Steering force, to meet the requirements, therefore, by steering assist motor guarantee steering force in a suitable range, make vehicle
It is turned in low speed flexibly, lightly.To sum up, by the way that steering assist motor is arranged, positive power steering or counter steering are provided
Power-assisted meets different steering situation needs, improves the handling comfort of driver, and improves the driving safety of vehicle.
System schema two: on the basis of system schema one, the steering system has there are two the steering assist motor,
It is arranged in the both ends of the rack and pinion steering gear.
System schema three: on the basis of system schema one or two, the first end is sun gear, and second end is planet
Frame, third end are gear ring.
System schema four: on the basis of system schema one or two, steering wheel power input mechanism includes steering column, turns
To jackshaft and turn to planet row input shaft, one end of the steering column for connecting steering wheel, the steering column it is another
One end and one end of steering intermediate shaft are connected by the first cardan drive, and the other end of the steering intermediate shaft passes through the 20000th
One end transmission connection of planet row input shaft, the steering planet row input shaft transmission connection described second are turned to described in Xiang Jieyu
End.
System schema five: on the basis of system schema one or two, the rack and pinion steering gear transmission connection, which turns to, is drawn
Bar, the steering linkage transmission connection knuckle arm, the knuckle arm is for the wheel that is sequentially connected.
Vehicle scheme one: this programme provides a kind of vehicle, including steering wheel, wheel and a kind of automobile-used variable ratio gear tooth
Steering system, the steering system include steering wheel power input mechanism, planet row, displacement motor and rack-and-pinion are helped to turn to
Device, having one in the sun gear of the planet row, planet carrier and gear ring is first end, a second end, and a third end is described
Displacement motor is helped to be sequentially connected the first end, the steering wheel power input mechanism is sequentially connected the second end, and described the
By turning to the planet row output shaft output transmission connection rack and pinion steering gear, the steering system further includes at least at three ends
One steering assist motor, each steering assist motor transmission connection rack and pinion steering gear, to provide power steering.
Vehicle scheme two: on the basis of vehicle scheme one, the steering system has there are two the steering assist motor,
It is arranged in the both ends of the rack and pinion steering gear.
Vehicle scheme three: on the basis of vehicle scheme one or two, the first end is sun gear, and second end is planet
Frame, third end are gear ring.
Vehicle scheme four: on the basis of vehicle scheme one or two, steering wheel power input mechanism includes steering column, turns
To jackshaft and turn to planet row input shaft, one end of the steering column for connecting steering wheel, the steering column it is another
One end and one end of steering intermediate shaft are connected by the first cardan drive, and the other end of the steering intermediate shaft passes through the 20000th
One end transmission connection of planet row input shaft, the steering planet row input shaft transmission connection described second are turned to described in Xiang Jieyu
End.
Vehicle scheme five: on the basis of vehicle scheme one or two, the rack and pinion steering gear transmission connection, which turns to, is drawn
Bar, the steering linkage transmission connection knuckle arm, the knuckle arm is for the wheel that is sequentially connected.
Detailed description of the invention
Fig. 1 is automobile-used variable ratio gear rack gear steering system structural figure；
In figure, 1 is steering wheel, and 2 be rotary angle transmitter, and 3 be steering column, and 4 be steering intermediate shaft, and 5 be steering planet row
Input shaft, 6 and 9 be ring gear, and 7 be planetary gear, and 8 be sun gear, and 10 is turn to planet row output shaft, and 11 and 19 be vehicle
Wheel, 12 and 18 be knuckle arm, and 13 and 17 be steering linkage, and 14 and 16 be motor, and 15 be rack and pinion steering gear.
Specific embodiment
Vehicle embodiments
The present embodiment provides a kind of vehicles, such as: all kinds of motor vehicles such as picking-up vehicle, medium-sized commercial vehicle.The vehicle includes
Steering wheel, wheel and a kind of automobile-used variable ratio gear rack gear steering system, since automobile-used variable ratio gear rack gear turns to
System is improvement of the invention, and following emphasis is illustrated the steering system.
Automobile-used variable ratio gear rack gear steering system includes steering wheel power input mechanism, planet row, helps displacement motor
With rack and pinion steering gear 15.Planet row includes three ends, first end, second end and third end is referred to as, due to planet row
Three ends be sun gear, planet carrier and gear ring respectively, therefore, first end, second end and third end respectively with sun gear, planet
One of one-to-one correspondence in frame and gear ring.Help displacement motor (being not drawn into figure) transmission connection first end, steering wheel power
Input mechanism transmission connection second end, third end is by turning to the output transmission connection rack and pinion steering gear of planet row output shaft 10
15。
Importantly, system further includes at least one steering assist motor, each steering assist motor by being driven accordingly
Mechanism driving connection gear rack gear diverter 15.Regardless of the number of steering assist motor is how many, i.e., either only one turns
Still there are at least two steering assist motors to assist motor, the position of each steering assist motor is set all in accordance with actual conditions
It sets.In the present embodiment, the number of steering assist motor is two, respectively motor 14 and motor 16, the two motors and gear
The arrangement relation of rack gear diverter 15 is arbitrary, as a specific embodiment, as shown in Figure 1, motor 14 is arranged in
The side of rack and pinion steering gear 15, motor 16 can be in the other sides of rack and pinion steering gear 15.In addition, rack-and-pinion turns to
The position of device 15 can be adjusted according to the needs that vehicle is arranged, such as in the front or behind of axle.
First end, second end and third end and the corresponding relationship of sun gear, planet carrier and gear ring be not unique, in principle always
Six kinds of corresponding relationships are shared, different corresponding relationships represents machine driving no-load voltage ratio difference, therefore, in the premise for meeting service requirement
Under, it can be set according to actual needs specific corresponding to relationship, in the present embodiment, provide one kind specific corresponding to relationship:
First end is sun gear, and second end is planet carrier, and third end is gear ring, since the planet row in Fig. 1 is sectional view,
In, 8 be sun gear, and 7 be planetary gear, i.e. planet carrier, and 6 and 9 be ring gear, i.e. gear ring, and planetary gear 7 is in 8 He of sun gear
Between ring gear 6 and 9.So, displacement motor transmission connection sun gear 8, the steering row in steering wheel power input mechanism are helped
Star arranges the transmission connection planetary gear 7 of input shaft 5, and ring gear 6 and 9 is by turning to the output transmission connection tooth of planet row output shaft 10
Rack gear diverter 15 is taken turns, planet row output shaft 10 is turned to and is engaged with rack and pinion steering gear 15.In addition, turning to planet row input shaft
5 can exchange with the upper and lower position for turning to planet row output shaft 10.
The present embodiment provides a kind of specific embodiment of steering wheel power input mechanism, it is of course also possible to use existing
Associated mechanisms.As shown in Figure 1, steering wheel power input mechanism further includes steering tube other than turning to planet row input shaft 5
Column 3 and steering intermediate shaft 4, steering wheel 1 are fastened on the top of steering column 3, lower end and the steering intermediate shaft 4 of steering column 3
Upper end is by the connection of the first cardan drive (i.e. hinged), and steering column 3 is also connect with vehicle frame, and the lower end of steering intermediate shaft 4 is logical
It crosses the second universal joint and turns to one end transmission connection (i.e. hinged) of planet row input shaft 5.
As a specific embodiment, one end of steering linkage 13 and rack and pinion steering gear 15 are hinged, the other end with
Knuckle arm 12 is hinged, the transmission connection wheel 11 of knuckle arm 12；One end of steering linkage 17 and rack and pinion steering gear 15 are cut with scissors
It connects, the other end and knuckle arm 18 are hinged, the transmission connection wheel 19 of knuckle arm 18.
In addition, rotary angle transmitter 2 is hinged on steering column 3, certainly, rotary angle transmitter 2 can also use torque sensing
Device, or cancel rotary angle transmitter, then, it is necessary to it is horizontal according to other relevant control modes, such as according to speed and vehicle body
It is controlled to signals such as acceleration.
Steering column 3 is by steering intermediate shaft 4 the corner of steering wheel 1 and torque transfer to steering planet row input shaft 5
On, and by helping displacement motor to control the steering of sun gear 8, change revolving speed and the torque of ring gear 6 and 9, turns to change
Revolving speed and torque to planet row output shaft 10；Motor 14 and 16 is engaged with the rack gear of rack and pinion steering gear 15,14 He of motor
16 export corresponding power steering square according to the control strategy set under different operating conditions, then pass through 13 He of steering linkage at both ends
17, steering force is transmitted to knuckle arm 12 and 18, to deflect with motor car wheel 11 and 19, realizes the steering of vehicle.
Therefore, when steering system works, steering angle and steering moment are passed to steering column 3, rotation angular sensing by steering wheel 1
Device 2 measures corner size, and passes to corresponding controller, and steering column 3 is by steering intermediate shaft 4 corner and torque transfer
Onto steering planet row input shaft 5, then by helping displacement motor according to the steering of angular signal and control logic control sun gear 8
Size changes revolving speed and the torque of ring gear 6 and 9, to adjust the revolving speed and the torque that turn to planet row output shaft 10, meanwhile,
Motor 14 and 16 exports corresponding power steering square according to the control strategy set under different operating conditions, then is drawn by the steering at both ends
Steering force is transmitted to knuckle arm 12 and 18 by bar 13 and 17, is realized that wheel 11 and 19 deflects, is reached the steering purpose of vehicle.
So increasing the force value of power steering by respectively arranging a motor at 15 both ends of rack and pinion steering gear, meet
The steering of medium-sized commercial vehicle needs, and realizes the control with motor using planetary gear mechanism, adjusts vehicle high-speed and low speed row
The steering gear ratio under operating condition is sailed, power steering is changed and turns to stress, adjusting with operating condition for steering gear ratio is realized, meets not
It is needed with steering situation, solves at a high speed and run at a low speed the contradiction to steering force demand, it is light and heavy at a high speed that realization turns to low speed
Surely, improve the handling comfort of driver, and improve the driving safety of vehicle.Moreover, can when bi-motor synchronous operation
Biggish power steering value is generated, the steering mechanism for solving traditional circulating ball type in medium-sized commercial vehicle is complicated, difficult arrangement, Hui Zheng
The problem that resistance is big and return performance is poor.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.Base of the invention
This thinking is the specific structure of automobile-used variable ratio gear rack gear steering system, under the premise of the structure, any control plan
Slightly it is within the scope of the invention.
Automobile-used variable ratio gear rack gear steering system embodiment
The present embodiment provides a kind of automobile-used variable ratio gear rack gear steering system, which belongs to one of vehicle
Point, it is of course also possible to it is separately protected, due to being described in detail in above-mentioned vehicle embodiments, just do not having here
Body explanation.
Claims (10)
1. a kind of automobile-used variable ratio gear rack gear steering system, including steering wheel power input mechanism, planet row, help displacement electricity
Machine and rack and pinion steering gear, having one in the sun gear of the planet row, planet carrier and gear ring is first end, one second
End, a third end are described to help the displacement motor transmission connection first end, the steering wheel power input mechanism transmission connection
The second end, the third end are special by turning to the planet row output shaft output transmission connection rack and pinion steering gear
Sign is that the steering system further includes at least one steering assist motor, each steering assist motor transmission connection gear
Rack gear diverter, to provide power steering.
2. automobile-used variable ratio gear rack gear steering system according to claim 1, which is characterized in that the steering system
There are two the steering assist motors for tool, are arranged in the both ends of the rack and pinion steering gear.
3. automobile-used variable ratio gear rack gear steering system according to claim 1 or 2, which is characterized in that described first
End is sun gear, and second end is planet carrier, and third end is gear ring.
4. automobile-used variable ratio gear rack gear steering system according to claim 1 or 2, which is characterized in that steering wheel is dynamic
Power input mechanism includes steering column, steering intermediate shaft and turns to planet row input shaft, and one end of the steering column is for connecting
Steering wheel is connect, the other end of the steering column and one end of steering intermediate shaft are connected by the first cardan drive, and described turn
It is sequentially connected to the other end of jackshaft by the second universal joint and described one end for turning to planet row input shaft, the steering row
Star arranges the input shaft transmission connection second end.
5. automobile-used variable ratio gear rack gear steering system according to claim 1 or 2, which is characterized in that the gear
Rack gear steering gear connects steering linkage, and the steering linkage transmission connection knuckle arm, the knuckle arm is for being driven
Connect wheel.
6. a kind of vehicle, including steering wheel, wheel and a kind of automobile-used variable ratio gear rack gear steering system, the steering system
Including steering wheel power input mechanism, planet row, help displacement motor and rack and pinion steering gear, the sun gear of the planet row,
Having one in planet carrier and gear ring is first end, a second end, a third end, described to help described in displacement motor is sequentially connected
First end, the steering wheel power input mechanism transmission connection second end, the third end is by turning to planet row output
The axis output transmission connection rack and pinion steering gear, which is characterized in that the steering system further includes that at least one steering helps
Force motor, each steering assist motor transmission connection rack and pinion steering gear, to provide power steering.
7. vehicle according to claim 6, which is characterized in that there are two the power steering electricity for the steering system tool
Machine is arranged in the both ends of the rack and pinion steering gear.
8. vehicle according to claim 6 or 7, which is characterized in that the first end is sun gear, and second end is planet
Frame, third end are gear ring.
9. vehicle according to claim 6 or 7, which is characterized in that steering wheel power input mechanism includes steering column, turns
To jackshaft and turn to planet row input shaft, one end of the steering column for connecting steering wheel, the steering column it is another
One end and one end of steering intermediate shaft are connected by the first cardan drive, and the other end of the steering intermediate shaft passes through the 20000th
One end transmission connection of planet row input shaft, the steering planet row input shaft transmission connection described second are turned to described in Xiang Jieyu
End.
10. vehicle according to claim 6 or 7, which is characterized in that the rack and pinion steering gear transmission connection, which turns to, draws
Bar, the steering linkage transmission connection knuckle arm, the knuckle arm is for the wheel that is sequentially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711480479.3A CN109987134A (en) | 2017-12-29 | 2017-12-29 | A kind of automobile-used variable ratio gear rack gear steering system and a kind of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711480479.3A CN109987134A (en) | 2017-12-29 | 2017-12-29 | A kind of automobile-used variable ratio gear rack gear steering system and a kind of vehicle |
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| CN109987134A true CN109987134A (en) | 2019-07-09 |
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| CN201711480479.3A Pending CN109987134A (en) | 2017-12-29 | 2017-12-29 | A kind of automobile-used variable ratio gear rack gear steering system and a kind of vehicle |
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Cited By (5)
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| CN111055919A (en) * | 2019-12-18 | 2020-04-24 | 南京航空航天大学 | Dual-motor steering-by-wire system and multi-objective optimization method based on dual-winding motor |
| CN111301058A (en) * | 2020-02-28 | 2020-06-19 | 内蒙古工业大学 | A planetary gear mechanism steering axle |
| CN111661150A (en) * | 2020-06-10 | 2020-09-15 | 中国第一汽车股份有限公司 | Road sense simulator |
| CN113665667A (en) * | 2021-08-27 | 2021-11-19 | 一汽解放汽车有限公司 | Steering device and vehicle |
| CN117446006A (en) * | 2023-12-14 | 2024-01-26 | 山东先河汽车零部件有限公司 | Electric power steering gear of tubular automobile |
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| CN111055919A (en) * | 2019-12-18 | 2020-04-24 | 南京航空航天大学 | Dual-motor steering-by-wire system and multi-objective optimization method based on dual-winding motor |
| CN111055919B (en) * | 2019-12-18 | 2021-09-17 | 南京航空航天大学 | Dual-motor steer-by-wire system based on dual-winding motor and multi-objective optimization method |
| CN111301058A (en) * | 2020-02-28 | 2020-06-19 | 内蒙古工业大学 | A planetary gear mechanism steering axle |
| CN111661150A (en) * | 2020-06-10 | 2020-09-15 | 中国第一汽车股份有限公司 | Road sense simulator |
| CN113665667A (en) * | 2021-08-27 | 2021-11-19 | 一汽解放汽车有限公司 | Steering device and vehicle |
| CN117446006A (en) * | 2023-12-14 | 2024-01-26 | 山东先河汽车零部件有限公司 | Electric power steering gear of tubular automobile |
| CN117446006B (en) * | 2023-12-14 | 2024-05-03 | 山东先河汽车零部件有限公司 | Electric power steering gear of tubular automobile |
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Country or region after: China Address after: No. 6 Yutong Road, Guancheng Hui District, Zhengzhou City, Henan Province Applicant after: Yutong Bus Co.,Ltd. Address before: Yutong Industrial Park, Shibalihe, Zhengzhou City, Henan Province Applicant before: ZHENGZHOU YUTONG BUS Co.,Ltd. Country or region before: China |
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Application publication date: 20190709 |