CN202193113U - Automotive steering-by-wire road feeling simulation executive device - Google Patents
Automotive steering-by-wire road feeling simulation executive device Download PDFInfo
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- CN202193113U CN202193113U CN2011202331640U CN201120233164U CN202193113U CN 202193113 U CN202193113 U CN 202193113U CN 2011202331640 U CN2011202331640 U CN 2011202331640U CN 201120233164 U CN201120233164 U CN 201120233164U CN 202193113 U CN202193113 U CN 202193113U
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- torsion spring
- steering
- damper
- road feel
- follower
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Abstract
The utility model provides an automotive steering-by-wire road feeling simulation executive device, which comprises a supporting mechanism, a magneto-rheological fluid damper, a pair of torsion springs and a torsion spring follower. The magneto-rheological fluid damper is mounted on the supporting mechanism, a damper shaft of the magneto-rheological fluid damper is connected with a steering wheel shaft of an automotive steering wheel, the torsion springs in pair are mounted on the damper shaft at two sides of the torsion spring follower and mounted coaxially but opposite in torsion, one end of each torsion spring is fixed onto the supporting mechanism, and the other end of each torsion spring is connected with the torsion spring follower which is peripherally limited with the damper. The automotive steering-by-wire road feeling simulation executive device is simple in structure, lower in energy consumption and high in safety, and has the function of automatic resetting.
Description
Technical field
The utility model relates to the vehicular spare parts field, specifically is a kind of steering-by-wire automobile road feel Simulation execution device that is used for steering-by-wire automobile road feel analog system.
Background technology
In orthodox car, chaufeur waits through steering handwheel, brake pedal, Das Gaspedal, gearshift and handles automobile, and generally is to carry out bonded assembly through mechanisms such as machinery, hydraulic pressure between these steering units and the final actuating unit.Different therewith is; In the automobile that adopts the line traffic control technology; Steering unit actuating unit cooresponding with it does not have direct mechanical connection; But employing electrical link: the instruction that pilot control steering handwheel (being vehicle steering), brake pedal, acceleration pedal etc. are produced at first is converted into electric signal, is delivered to electronic control unit via cable then; Electronic control unit produces control command and delivers to actuating unit through signal cable according to certain algorithm according to driver command of receiving and travel condition of vehicle, finally presses the command request operation by the actuating mechanism controls vehicle.
When the manipulation orthodox car turns to, the suffered steering resisting torque of the steered wheel of automobile will pass through mechanisms such as machinery, hydraulic pressure and be sent to steering handwheel, form so-called " road feel ".Road feel is actually vehicle operating information and the information of road surface that feeds back to chaufeur, and chaufeur can be adjusted driver behavior according to it.Practice and research show that all road feel is extremely important to the safe driving automobile.Yet in the automobile that adopts the steering-by-wire technology, do not have mechanical connection between steering handwheel and the steered wheel, so directly the road feel transmission is impossible.Therefore, wire-controlled steering system needs one cover road feel analog machine waits according to travel condition of vehicle and simulates road feel.
From such consideration, application number is that 200810060729.2 application discloses a kind of drive simulating person's road feel device that is used for automobile steer-by-wire system.It comprises steering handwheel, harmonic speed reducer, synchronous motor, electronic control unit (ECU), and the steering handwheel rotating shaft is provided with a torque sensor and an angular-motion transducer, can pass the signal along to electronic control unit.Simultaneously, the torque of steering handwheel is arrived synchronous motor through harmonic reduction with transmission of torque, and the coil current information of synchronous motor passes to electronic control unit through a Hall current sensor.After electronic control unit receives these information; In conjunction with GES and load torque signal, through phase compensation, damping compensation, inertia compensation and friciton compensation etc., the rotation of control synchronous motor; Obtain a feedback torque, and pass to steering handwheel through retarder.
Identical like above-mentioned technology, all adopt motor to implement the actv. force feedback in the research of the overwhelming majority about the simulation of steering-by-wire road feel at present, with the simulation road feel as the executive device in the road feel analog system.Adopt motor to have following deficiency as the executive device of road feel simulation: the first, this employing motor belongs to the actv. force feedback as the executive device in the road feel analog system; When the control failure; The road feel simulated machine might drag steering handwheel and do undesirable motion; Thereby it is the potential safety hazard of bringing, even accidents caused.Second; Automobile can be handling a requirement be: when the chaufeur both hands unclamped steering handwheel, steering handwheel can return automatically to zero-bit (this function is called as " initiatively just return "), and the road feel Simulation execution device of present steering-by-wire automobile does not all have and initiatively returns positive function; Three, adopt the executive device of motor as the road feel simulation; Structure is comparatively complicated, installs cumbersomely, and energy consumption is higher.
The utility model content
The technical matters that the utility model will solve is, overcomes the defective of prior art, provide a kind of simple in structure, energy consumption is lower, and is and safe, has the initiatively steering-by-wire automobile road feel Simulation execution device of return function.
The technical scheme of the utility model is; A kind of steering-by-wire automobile road feel Simulation execution device is provided, and it comprises supporting mechanism, magnetic rheological liquid damper, a pair of torsion spring and torsion spring follower, and said magnetic rheological liquid damper is installed on the supporting mechanism; The steering-wheel spindle of the steering handwheel in the damper shaft of magnetic rheological liquid damper and the automobile is connected; Said a pair of torsion spring is installed in respectively on the damper shaft of both sides of torsion spring follower, and said a pair of torsion spring is with axle mounting and turn round on the contrary, and an end of each torsion spring is fixed on the supporting mechanism; The other end is connected with the torsion spring follower, and torsion spring follower and damper shaft are circumferentially spacing.
The axis of the axis of the damper shaft of said magnetic rheological liquid damper and the steering-wheel spindle of steering handwheel is on same straight line.
Said supporting mechanism comprises last protective case of being processed by NULL and the following protective case of being processed by NULL equally; One side of said magnetic rheological liquid damper is connected with last protective case; The opposite side of magnetic rheological liquid damper is connected with following protective case, on the inwall of the fixing protective case down of an end of said each torsion spring.
Said torsion spring follower and adapter shaft be spacing being meant circumferentially, and the torsion spring follower is connected through key with adapter shaft.The employing key connects, and is simple and reliable.
After adopting above structure, the utility model compared with prior art has the following advantages:
The first, the utility model adopts magnetic rheological liquid damper as main road feel Simulation execution mechanism; Physical construction is simple, response is rapid; And magnetic rheological liquid damper provides half actv. moment, so even the control failure, it also can initiatively not drag steering handwheel and rotate; Thereby the potential safety hazard of having avoided active force feedback schemes such as employing motor to bring is safe.
The second, the utility model adopts torsion spring that the active aligning torque of steering handwheel is provided, and controls through the control magnetic rheological liquid damper and initiatively to return positive speed, guarantees back positive steady, thereby realization active return function.
Three, the utility model adopts magnetic rheological liquid damper to replace the executive device of motor as the road feel analog system, and energy consumption simple in structure is lower.
As preferably, the other end of said torsion spring is connected with the torsion spring follower and is meant that said torsion spring follower is provided with along centrosymmetric two holes, and the other end of said a pair of torsion spring inserts respectively in two holes.Adopt this structure,, just can drive the torsion spring follower and rotate, rotate thereby drive, even steering handwheel just rotates back with the circumferentially spacing damper shaft of torsion spring follower when torsion spring returns correct time.
Preferred as another, the other end of said torsion spring is connected with the torsion spring follower and is meant that said torsion spring follower is provided with arc guide groove, and the other end of said a pair of torsion spring all inserts in the guide groove.Adopt this structure; When torsion spring rotates, have only a torsion spring to rotate, and another torsion spring slide in guide groove owing to the other end towards the direction that torsion spring is tightened; When having only the torsion spring rotational angle to surpass the radian of guide groove; Another torsion spring just can work, and makes torsion spring can be too tired, has prolonged the life-span of torsion spring.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model steering-by-wire automobile road feel Simulation execution device;
Accompanying drawing 2 is axial cross-sectional schematic of the utility model steering-by-wire automobile road feel Simulation execution device;
Accompanying drawing 3 is A place enlarged diagrams of Fig. 2;
Accompanying drawing 4 is structural representations of a kind of embodiment of torsion spring follower;
Accompanying drawing 5 is structural representations of the another kind of embodiment of torsion spring follower;
As shown in the figure: 1, supporting mechanism, 1.1, following protective case, 1.2, go up protective case, 2, magnetic rheological liquid damper; 2.1, damper shaft 3, torsion spring, 5, the steering wheel angle sensor, 6, the hand-wheel torque sensor; 7, steering handwheel, 7.1, steering-wheel spindle, 8, the torsion spring follower; 8.1, guide groove, 8.2, the hole, 9, key.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
The road feel analog system of whole steering-by-wire automobile is existing known technology, and total system comprises steering handwheel subsystem, travel condition of vehicle measurement subsystem and electronic control unit (ECU).Wherein, the steering handwheel subsystem comprises steering handwheel 7, road feel Simulation execution device, hand-wheel torque sensor 6 and steering wheel angle sensor 5, and each parts is installed on the same axle; Hand-wheel torque sensor 6 is used to monitor the size that acts on the moment on the steering-wheel spindle 7.1; Steering wheel angle sensor 5 is used to monitor steering handwheel 7 when front hook and rotational angular velocity; The travel condition of vehicle measurement subsystem comprises sensors such as detecting the speed of a motor vehicle, direction of vehicle movement, and its kind, quantity and installation site determine that by the concrete road feel simulation control algorithm that is adopted purposes is the running state data of dynamic acquisition vehicle; The control signal that electronic control unit is confirmed magnetic rheological liquid damper according to the signal of sending here and certain control algorithm of steering handwheel state measurement subsystem and travel condition of vehicle measurement subsystem; And finally through driver element control signal is sent to magnetic rheological liquid damper and carries out, the utility model is the road feel Simulation execution device in the above-mentioned road feel analog system.
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5; The utility model provides a kind of steering-by-wire automobile road feel Simulation execution device; It comprises supporting mechanism 1, magnetic rheological liquid damper 2, a pair of torsion spring 3 and torsion spring follower 8; Said magnetic rheological liquid damper 2 is installed on the supporting mechanism 1; Magnetic rheological liquid damper 2 is the magnetic rheological liquid damper of known technology, and the steering-wheel spindle 7.1 of the steering handwheel 7 in the damper shaft 2.1 of magnetic rheological liquid damper 2 and the automobile is connected, and the axis of the axis of the damper shaft 2.1 of said magnetic rheological liquid damper 2 and the steering-wheel spindle 7.1 of steering handwheel 7 is on same straight line.Said a pair of torsion spring 3 is installed in respectively on the damper shaft 2.1 of both sides of torsion spring follower 8; Said a pair of torsion spring 3 is with axle mounting and turn round on the contrary; I.e. turning round to for just of a torsion spring, the turning round to for anti-of another torsion spring, an end of each torsion spring 3 is fixed on the supporting mechanism 1; The other end is connected with torsion spring follower 8, and torsion spring follower 8 is circumferentially spacing with damper shaft 2.1.
Said supporting mechanism 1 comprises last protective case of being processed by NULL 1.2 and the following protective case of being processed by NULL equally 1.1; One side of said magnetic rheological liquid damper 2 is connected with last protective case 1.2; The opposite side of magnetic rheological liquid damper 2 is connected with following protective case 1.2, on the inwall of the fixing protective case 1.1 down of an end of said each torsion spring 5.Adopting NULL is for the magnetic circuit that guarantees magnetic rheological liquid damper 2 can not receive ectocine, guarantees the integraty of magnetic circuit, thereby guarantees the effect of magnetic rheological liquid damper.
Said torsion spring follower 8 and damper shaft 2.1 circumferential spacing being meant, torsion spring follower 8 is connected through key 9 with damper shaft 2.1.
As shown in Figure 4, as a kind of embodiment, the other end of said torsion spring 3 is connected with torsion spring follower 8 and is meant, said torsion spring follower 8 is provided with along centrosymmetric two holes 8.2, and the other end of said a pair of torsion spring 3 inserts respectively in two holes 8.2.In the real work, when chaufeur rotated steering handwheel toward a direction, two torsion springs were turned round simultaneously, produce back positive moment of torsion; When chaufeur unclamps steering handwheel, return positive moment of torsion drive steering handwheel and initiatively just return.
As shown in Figure 5, be another kind of embodiment, the other end of said torsion spring 3 is connected with torsion spring follower 8 and is meant that said torsion spring follower 8 is provided with arc guide groove 8.1, and the other end of said a pair of torsion spring 3 all inserts in the guide groove 8.1.In the present embodiment, the radian of said arc guide groove 8.1 is 300 degree.Adopt this structure, when torsion spring rotates, have only a torsion spring to rotate towards the direction that torsion spring is tightened; And another torsion spring is because the other end slides in guide groove, and when having only the torsion spring rotational angle to surpass the radian of guide groove, promptly 300 when spending; Another torsion spring just can work; Thereby two torsion springs can not work always, make torsion spring can be too tired, have prolonged the life-span of torsion spring.
The principle of work of the utility model is: road feel Simulation execution device is made up of a magnetic rheological liquid damper and a pair of turning round to opposite torsion spring; Its output torque is made up of two parts: torsion spring provides the uncontrollable moment by its characteristic and steering wheel angle decision, and magnetic rheological liquid damper provides the torque-controllable via its excitation field control.Under the road feel simulation model; Electronic control unit in the road feel analog system can provide the execution signal according to certain algorithm to road feel Simulation execution device according to the travel condition of vehicle information that the travel condition of vehicle measurement subsystem is sent; In the utility model; Be exciting current to be provided,, therefore can realize the road feel feedback moment expected through magnetic rheological liquid damper is controlled because the moment that provides of torsion spring is identical with the moment direction that magnetic rheological liquid damper provides to magnetic rheological liquid damper.
Initiatively returning under the holotype, torsion spring provides back the moment of positive drive torque, and magnetic rheological liquid damper provides and stop back positive moment, and carrying through the control to magnetic rheological liquid damper is that may command is returned positive speed and stationarity.In addition, the moment of locking steering handwheel also can be provided, thereby prevent to wait the problems such as steering handwheel shake that cause because of vibrations through magnetic rheological liquid damper.
Claims (7)
1. steering-by-wire automobile road feel Simulation execution device; It is characterized in that: it comprises supporting mechanism (1), magnetic rheological liquid damper (2), a pair of torsion spring (3) and torsion spring follower (8); Said magnetic rheological liquid damper (2) is installed on the supporting mechanism (1); The steering-wheel spindle (7.1) of the steering handwheel (7) in the damper shaft (2.1) of magnetic rheological liquid damper (2) and the automobile is connected; Said a pair of torsion spring (3) is installed in respectively on the damper shaft (2.1) of both sides of torsion spring follower (8), and said a pair of torsion spring (3) is with axle mounting and turn round on the contrary, and an end of each torsion spring (3) is fixed on the supporting mechanism (1); The other end is connected with torsion spring follower (8), and torsion spring follower (8) is circumferentially spacing with damper shaft (2.1).
2. steering-by-wire automobile road feel Simulation execution device according to claim 1 is characterized in that: the axis of the axis of the damper shaft (2.1) of said magnetic rheological liquid damper (2) and the steering-wheel spindle (7.1) of steering handwheel (7) is on same straight line.
3. steering-by-wire automobile road feel Simulation execution device according to claim 1; It is characterized in that: said supporting mechanism (1) comprises last protective case of being processed by NULL (1.2) and the following protective case of being processed by NULL equally (1.1); One side of said magnetic rheological liquid damper (2) is connected with last protective case (1.2); The opposite side of magnetic rheological liquid damper (2) is connected with following protective case (1.2), on the inwall of the fixing protective case (1.1) down of an end of said each torsion spring (5).
4. steering-by-wire automobile road feel Simulation execution device according to claim 1; It is characterized in that: the other end of said torsion spring (3) is connected with torsion spring follower (8) and is meant; Said torsion spring follower (8) is provided with along centrosymmetric two holes (8.2), and the other end of said a pair of torsion spring (3) inserts respectively in two holes (8.2).
5. steering-by-wire automobile road feel Simulation execution device according to claim 1; It is characterized in that: the other end of said torsion spring (3) is connected with torsion spring follower (8) and is meant; Said torsion spring follower (8) is provided with arc guide groove (8.1), and the other end of said a pair of torsion spring (3) all inserts in the guide groove (8.1).
6. steering-by-wire automobile road feel Simulation execution device according to claim 5 is characterized in that: the radian of said arc guide groove (8.1) is 300 degree.
7. steering-by-wire automobile road feel Simulation execution device according to claim 1 is characterized in that: said torsion spring follower (8) and circumferential spacing being meant of damper shaft (2.1), torsion spring follower (8) is connected through key (9) with damper shaft (2.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202331640U CN202193113U (en) | 2011-06-30 | 2011-06-30 | Automotive steering-by-wire road feeling simulation executive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202331640U CN202193113U (en) | 2011-06-30 | 2011-06-30 | Automotive steering-by-wire road feeling simulation executive device |
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| Publication Number | Publication Date |
|---|---|
| CN202193113U true CN202193113U (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202331640U Withdrawn - After Issue CN202193113U (en) | 2011-06-30 | 2011-06-30 | Automotive steering-by-wire road feeling simulation executive device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320324A (en) * | 2011-06-30 | 2012-01-18 | 浙江大学宁波理工学院 | Wire control steering automobile road sensing simulation executing device |
| CN111032482A (en) * | 2017-08-29 | 2020-04-17 | 蒂森克虏伯普利斯坦股份公司 | Steer-by-wire system for a motor vehicle having a feedback actuator with an integrated MRF bearing |
| GB2622659A (en) * | 2022-09-20 | 2024-03-27 | Hu Jian | Automobile steering simulator |
-
2011
- 2011-06-30 CN CN2011202331640U patent/CN202193113U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320324A (en) * | 2011-06-30 | 2012-01-18 | 浙江大学宁波理工学院 | Wire control steering automobile road sensing simulation executing device |
| CN102320324B (en) * | 2011-06-30 | 2013-01-16 | 浙江大学宁波理工学院 | Wire control steering automobile road sensing simulation executing device |
| CN111032482A (en) * | 2017-08-29 | 2020-04-17 | 蒂森克虏伯普利斯坦股份公司 | Steer-by-wire system for a motor vehicle having a feedback actuator with an integrated MRF bearing |
| GB2622659A (en) * | 2022-09-20 | 2024-03-27 | Hu Jian | Automobile steering simulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yu Zaihe Inventor after: Huang Chaobing Inventor after: Zhao Xianghong Inventor after: Zheng Di Inventor after: Wang Yuanyuan Inventor after: Tong Senlin Inventor before: Huang Chaobing Inventor before: Zhao Xianghong Inventor before: Zheng Di Inventor before: Wang Yuanyuan Inventor before: Tong Senlin |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HUANG CHAOBING ZHAO XIANGHONG ZHENG DI WANG YUANYUAN TONG SENLIN TO: YU ZAIHE HUANG CHAOBING ZHAO XIANGHONG ZHENG DI WANG YUANYUAN TONG SENLIN |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20120418 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |