CN105667573B - Rear-axle steering system for motor vehicles - Google Patents
Rear-axle steering system for motor vehicles Download PDFInfo
- Publication number
- CN105667573B CN105667573B CN201510875901.XA CN201510875901A CN105667573B CN 105667573 B CN105667573 B CN 105667573B CN 201510875901 A CN201510875901 A CN 201510875901A CN 105667573 B CN105667573 B CN 105667573B
- Authority
- CN
- China
- Prior art keywords
- steering
- little gear
- steering system
- clutch
- turning
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
- B62D7/15—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels
- B62D7/1581—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels characterised by comprising an electrical interconnecting system between the steering control means of the different axles
-
- 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
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
-
- 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
- B62D5/043—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 clutch means between driving element, e.g. motor, and driven element, e.g. steering column or steering gear
-
- 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
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
- B62D7/148—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering provided with safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Automatic Cycles, And Cycles In General (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The present invention relates to a kind of rear-axle steering system for motor vehicles, with for elapsing the central actuator of turning-bar, the turning-bar is connected with two wheels of back axle and changes the steering angle of these wheels, wherein the turning-bar engages with turning to little gear, and it can be blocked to suppress the motion of the turning-bar steering little gear by blocking device, the blocking device is configured to clutch.In order to enable a driver to safety in the case of no energy supply and controllably realize room for manoeuvre pattern, according to the present invention, the clutch (23) has multiple disks (5), and, the disk of bottom is abutted on pressure plare (8), the ball ramp (9) that the pressure plare is driven by motor is tensioned against spring plate group (12), thus power stop when, the steering little gear (3) can be blocked and the clutch (23) is closed by the spring tension of spring plate group (12).
Description
Technical field
The present invention relates to a kind of rear-axle steering system for motor vehicles, has and is used in one that elapses a turning-bar
Entreat actuator, the turning-bar is connected with two wheels of back axle and changes the steering angle of these wheels, wherein the turning-bar and
One turn to little gear engagement, and the steering little gear in order to suppress the motion of turning-bar can by a blocking device and
It is blocked, the blocking device is configured to clutch.
Background technology
Rear-axle steering system is generally known from the prior art, otherwise it sets a list for each wheel of back axle
Only actuator, otherwise set a central actuator jointly to manipulate the two of motor vehicles trailing wheels.For with center
For the rear-axle steering system of actuator, in principle it is contemplated that acetyl so changing propons steering system, it is set also to can be used in back axle
Steering.
A kind of apparatus for rear wheel steering for motor vehicles as known to the A1 of DE 40 25 950, wherein will be of substantially standard
Steering unit for front wheels be used as apparatus for rear wheel steering.
The A1 of DE 10 2,009 033 912 disclose a kind of steering driver with quill shaft motor, and it can be applied
It can also be applied in rear-axle steering system in propons steering system.Wherein propose, when as rear-axle steering system, pivot design is into certainly
Lock.
Power stop when, turning-bar can in this post in bridge steering system due to dynamically also or static load and transport
It is dynamic, and adjust the steering angle for trailing wheel.Here, less steering angle is not have for the traveling behavior of motor vehicles
Problem, but driver must carry out lasting counter steering by propons steering system, or fix the change of motor vehicles
Linear motion.Therefore for currentless room for manoeuvre pattern (stromlose R ü ckfallebene), it is necessary to the locking back axle
Steering system.
The content of the invention
In view of this, the object of the present invention is to improve the rear-axle steering system of type described in opening paragraph in the following manner,
So that room for manoeuvre pattern is safely controllable for driver.
This purpose is realized with the rear-axle steering system with feature of present invention.The favourable improvement scheme of the present invention can be from expansion
Exhibition protection scheme is drawn.
Herein propose, the clutch has multiple disks and the disk of bottom is abutted on a pressure plare, the pressure
The ball ramp (Kugelrampe) that power plate is driven by a motor is in reverse to spring plate group and is tensioned, therefore stops in power supply
When, the steering little gear can be blocked and clutch is closed by the spring tension of spring plate group.
Brief description of the drawings
Below by way of embodiment refer to the attached drawing, the present invention is described in detail.Shown in figure：
Fig. 1 shows the schematic diagram that propons steering system is used as to rear-axle steering system；
Fig. 2 shows the schematic diagram of the rear-axle steering system according to the present invention；
Fig. 3 a, b show the schematic diagram of the blocking device with clutch.
Fig. 4 a, b show embodiment of the blocking device as clutch.
Embodiment
Fig. 1 shows the propons steering system of of substantially standard electromagnetism, in order to as rear-axle steering system by it as further below
Modified as will be apparent from.Fig. 1 rear-axle steering system is distinguished by, and central actuator 1, which manipulates, to be turned to
Bar 2, the turning-bar and then is connected with unshowned trailing wheel HL, HR.The central actuator 1 is passed by electro-motor 27 and ball screws
Dynamic device 29 is formed, and the ball screws driver is converted to the rotary motion of electro-motor 27 translational motion of turning-bar 2.It is electronic
Motor 27 is controlled by electronic control unit 28.When manipulating rear-axle steering system, turning-bar 2 is according to the direction of rotation of electro-motor 27
Towards the right side or towards left translation in drawing.Correspondingly, consistent steering angle is jointly adjusted out on trailing wheel HR, HL.As from Fig. 1
In can also draw as, rear-axle steering system have turn to little gear 3.When shown steering system is used as into propons steering system,
Steering wheel can be connected with the steering little gear 3.Thrust block pad 30 engages turning-bar 2 and steering little gear 3.
Because ball screws driver 29 is not designed to self-locking, turning-bar 2 can drift about when powering and stopping
And the steering angle for trailing wheel HL, HR is adjusted, this point is undesirable.Therefore come for currentless room for manoeuvre pattern
Say, it is necessary to the locking rear-axle steering system.As figure 2 illustrates as, proposed for this, turning to little gear 3 and blocking device 4
It is connected, wherein blocking device 4 being capable of the locking steering little gear 3.By the measure, the turning-bar 2 is prevented currentless
Motion in room for manoeuvre pattern.
In Fig. 3 a, b, the blocking device 4 is made up of clutch 23.The clutch 23 passes through the first disk 24 and second
Disk 25 is formed.First disk 24 is connected with turning to little gear 3, and the second disk 25 passes through two disks 24 of electromagnet 26 and first
Engagement or disengagement.Second disk 25 is fixedly disposed position in a rotational direction, thus turn to little gear 3 can by from
The closure of clutch 23 carrys out locking.These electromagnets 26 are preferably so formed, i.e., they cause clutch in the state of no current
The closure of device 23.
The extension for the blocking device 4 for being configured to clutch 23, the blocking device bag are illustrated according to Fig. 4 a, b implementation
Include multiple disks 5 overlapping each other, being arranged alternately.These disks 5 are herein respectively in this way, i.e. up between disk 6
Connection with the first connecting element 13 with ball ramp 9, and have between lower section disk 7 with turning to little gear 3
The connection of second connecting element 14, and the disk of bottom is lain on pressure plare 8.Here, 13,14 points of these connecting elements
It is not connected with turning to little gear 3 and ball ramp 9.Grasped by being connected on ball ramp 9, unshowned electro-motor
When vertical, the effect for the ball ramp 9 being made up of ball 11 and inclined-plane 10 is pressure plare 8 is pressed against to the direction for turning to little gear 3
Spring plate group 12 is moved.The spring plate group 12 is herein between the steering little gear 3 and pressure plare 8, and pass through pressure plare 8
Positioning to turn to little gear 3 direction on discharge pressure.Therefore, the locking unit that can be seen in fig. 4b is opened.In electricity
When dynamic motor and the supply failure of associated electric current, the closure (as shown in fig. 4 a) of clutch 23 is come in fact in the following manner
Existing, i.e., pressure plare 8 is retracted by the pressure of spring plate group 12, and these disks 5 are bonded with each other, this so that realize to turning
Locking to little gear 3.
The theory of the present invention is, so changes the propons steering system of motor, it is can also act as rear-axle steering system
Central actuator.Propons steering system and the difference of rear-axle steering system are substantially, are lacking energy supply or other events are occurring
The locking rear-axle steering system is allowed for during barrier, therefore does not make rear-axle steering system and automatically adjusts undesirable steering for trailing wheel
Angle.Provide for this purpose, turn to little gear (steering wheel may be fixed in the steering little gear for propons steering system) and set
It is equipped with blocking device.By the measure, can the locking steering little gear, and prevent the motion of turning-bar.By the measure,
Propons steering system can be used as rear-axle steering system.
Claims (8)
1. a kind of rear-axle steering system for motor vehicles, the rear-axle steering system, which has, to be used for elapsing the one of a turning-bar (2)
Individual central actuator (1), two wheel (HL of the turning-bar and the back axle；HR) it is connected and changes these wheels (HL, HR)
Steering angle, wherein, the turning-bar (2) turns to little gear (3) with one and engaged, and the wherein steering little gear (3) can be by
One blocking device (4) and be blocked, so as to suppress the motion of the turning-bar (2), and wherein, the blocking device (4)
It is configured to clutch (23), it is characterised in that the clutch (23) has multiple disks (5), also, the disk of bottom reclines
On a pressure plare (8), the pressure plare is in reverse to a spring plate group by the ball ramp (9) of an electrical motor driven
(12) active force is tensioned, thus when powering stopping, the steering little gear (3) can pass through the bullet of the spring plate group (12)
Spring tension force and be blocked and the clutch (23) is closed.
2. rear-axle steering system according to claim 1, it is characterised in that the clutch (23) has multiple stacked on top of each other
, the disk being arranged alternately (5), these disks are connected with the ball ramp (9) or the steering little gear (3) respectively, wherein, point
Disk (6) of the other places in top is connected with the ball ramp (9), and is respectively at the disk (7) and the small tooth of the steering of lower section
(3) are taken turns to be connected.
3. rear-axle steering system according to claim 2, it is characterised in that the ball ramp (9) passes through with the pressure plare (8)
One connecting element (13) is connected, and the disk (6) for being respectively at top of the wherein clutch (23) is arranged on the connection
Element (13) place, and the steering little gear (3) is further through second connecting element (14) and the disk for being respectively at lower section
(7) it is connected.
4. rear-axle steering system according to claim 1, it is characterised in that the spring plate group (12) is arranged on the small tooth of the steering
Take turns between (3) and the pressure plare (8), the pressure plare is tensioned by the ball ramp (9) towards the steering little gear (3).
5. rear-axle steering system according to claim 4, it is characterised in that be tensioned this by manipulating the ball ramp (9)
Spring plate group (12), wherein, the ball ramp (9) can be manipulated by the electro-motor, also, the ball ramp (9) passes through
The pressure plare (8) is set to be positioned against the spring plate group (12) to the motion on the direction of the steering little gear (3), to open this
Clutch (23).
6. rear-axle steering system according to claim 5, it is characterised in that in the case where the electro-motor fails, the rolling
Pearl inclined-plane (9) closes the clutch (23) because the electro-motor is not powered, wherein, the pressure plare (8) is because of the spring leaf
The spring tension of group (12) and to retracting on the direction of the ball ramp (9).
7. rear-axle steering system according to claim 6, it is characterised in that close the clutch in the following manner
(23)：These disks (5) for making to be arranged on the ball ramp (9) and the steering little gear (3) are bonded with each other, and realization pair
The locking of the steering little gear (3).
8. rear-axle steering system according to claim 1, it is characterised in that the steering little gear (3) and the spring plate group
(12) surrounded by a shared housing (15).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014117861.0A DE102014117861B4 (en) | 2014-12-04 | 2014-12-04 | Rear axle steering for motor vehicles |
| DE102014117861.0 | 2014-12-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105667573A CN105667573A (en) | 2016-06-15 |
| CN105667573B true CN105667573B (en) | 2018-04-10 |
Family
ID=55974868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510875901.XA Expired - Fee Related CN105667573B (en) | 2014-12-04 | 2015-12-03 | Rear-axle steering system for motor vehicles |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105667573B (en) |
| DE (1) | DE102014117861B4 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE545191C2 (en) * | 2021-09-20 | 2023-05-09 | Scania Cv Ab | Control device and method for controlling a tag axle steering system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6367577B2 (en) * | 2000-04-05 | 2002-04-09 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle including a variable gear ratio steering device and an electric power steering apparatus |
| CN1516659A (en) * | 2001-04-09 | 2004-07-28 | ��ɭ��³������˹��ת��������˾ | Motor-driven power steering unit |
| DE102009033912A1 (en) * | 2009-07-20 | 2011-01-27 | Magna Powertrain Ag & Co Kg | Steering gear and vehicle steering assembly |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4025950B4 (en) | 1989-09-09 | 2007-07-12 | Volkswagen Ag | Rear wheel steering of a four-wheel steered motor vehicle |
| US20090145684A1 (en) | 2007-12-10 | 2009-06-11 | Trw Automotive U.S. Llc | Safety apparatus for rear steerable vehicle wheels |
| DE102014100719A1 (en) | 2013-12-11 | 2015-06-11 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Rear axle steering for motor vehicles |
-
2014
- 2014-12-04 DE DE102014117861.0A patent/DE102014117861B4/en active Active
-
2015
- 2015-12-03 CN CN201510875901.XA patent/CN105667573B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6367577B2 (en) * | 2000-04-05 | 2002-04-09 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle including a variable gear ratio steering device and an electric power steering apparatus |
| CN1516659A (en) * | 2001-04-09 | 2004-07-28 | ��ɭ��³������˹��ת��������˾ | Motor-driven power steering unit |
| DE102009033912A1 (en) * | 2009-07-20 | 2011-01-27 | Magna Powertrain Ag & Co Kg | Steering gear and vehicle steering assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014117861B4 (en) | 2023-08-03 |
| DE102014117861A1 (en) | 2016-06-09 |
| CN105667573A (en) | 2016-06-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20201203 |