CN203414285U - Automobile steer-by-wire simulation test bench road sense stimulation apparatus - Google Patents
Automobile steer-by-wire simulation test bench road sense stimulation apparatus Download PDFInfo
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- CN203414285U CN203414285U CN201320394782.2U CN201320394782U CN203414285U CN 203414285 U CN203414285 U CN 203414285U CN 201320394782 U CN201320394782 U CN 201320394782U CN 203414285 U CN203414285 U CN 203414285U
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- damping
- angular transducer
- steering column
- supporting seat
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Abstract
The utility model discloses an automobile steer-by-wire simulation test bench road sense stimulation apparatus for solving the problem that a conventional road sense stimulation apparatus lacks control over a damping motor. A direction column is connected with a direction column supporting seat through a bearing; the direction column has a top portion fixedly connected with a steering wheel, a central portion provided with a damping worm gear, and a bottom portion fixedly connected with an angle sensor through a shaft coupling; the angle sensor is connected with an angle sensor support through a bearing; the angel sensor support is fixedly connected with the direction column supporting seat; the damping motor is fixedly connected with the direction column supporting seat and has an output shaft fixedly connected with a damping worm; the damping worm cooperates with the damping worm gear; the input end of the damping motor is connected with the output end of a damping motor controller; the input end of the damping motor controller is connected with the output end of an electronic control unit DSP development board; and the input end of the electronic control unit DSP development board is connected with the signal output end of the angle sensor. The automobile steer-by-wire simulation test bench road sense stimulation apparatus can obtain the best road sense through controlling the damping motor to generate damping.
Description
Technical field
The utility model belongs to automotive field, relates to Automotive Steering Technology, is specifically related to a kind of automobile steering-by-wire simulation testing platform road feel analogue means.
Background technology
Automobile steering system realizes according to driver's intention the function of controlling Vehicular turn in Vehicle Driving Cycle process, and the control stability in vehicle traveling process and security are played an important role.Traditional mechanical type steering is by handle structure and turn to the mechanical connection transmission driver between topworks to turn to intention to realize turning function.For improving driving performance, on traditional mechanical type steering basis, develop servo steering system, as hydraulic power-assist steering system and electric boosting steering system.The common ground of these steering is catanator and turns between topworks is all to connect by mechanisms such as machinery, hydraulic pressure, still need to realize turning function by the certain manual operation of driver, the shake impact on road surface simultaneously can be delivered on bearing circle and affect to driver's driving stability.
The develop rapidly of current automotive electronic technology to automobile steering system brought technical innovation ，Ge great auto vendor and Research Center start to focus on the research work to steering-by-wire technology.Wire-controlled steering system has been cancelled catanator and has been turned to the mechanical connection between topworks, but adopt signal to be connected with electronic control unit, driver is converted to electric signal to the control command of bearing circle by electronic control unit, electronic control unit is according to received signal, current vehicle condition and pavement behavior, according to certain control algolithm, produce control signal instruction, pass to and turn to topworks to realize rational front wheel angle, realize turning to of " just right ".The exploitation of automobile steering system is needed to a large amount of tests, especially by vehicle road test, system performance is adjusted to optimum Working.But proving ground test not only needs to consume a large amount of human and material resources and financial resources, also has certain risk, and the cycle is long.Steering simulation testing platform can replace a large amount of real train tests aspect steering exploitation, improvement and test at present, carry out impossible or comparatively complicated in practice test, as fault simulation, fault diagnosis, software test etc., simulation testing platform has repeatability simultaneously.
In vehicle traveling process, by the mechanical connection between catanator and topworks, steering resisting moment is passed to driver, it is so-called road feel, vehicle movement and stress information and information of road surface have been comprised, research practice shows that road feel is grasped motion state of automobile to driver and running environment situation is extremely important, and good road feel is to guarantee the indispensable part of vehicle handling stability.Yet in wire-controlled steering system, road feel information cannot be delivered to bearing circle by mechanical connecting device as mechanical steering gear, so must have in steering simulation testing platform, a set ofly can guarantee riding manipulation stability according to the simulation road feels such as driving condition, information of road surface the device that passes to driver.
At present, mainly there are two kinds of situations in the design studies for road feel analogue means: the one, and in whole road feel analogue means, by spring-damp system, formed and there is no control system, the application that is 201110185746.0 as application number discloses a kind of device that adopts MR damper, torsion spring etc. to realize road feel simulation, this device does not have control system can not carry out the artificial algorithm control of road feel, less demanding to road feel, can not carry out active road feel feedback; The 2nd, road feel simulation produces corresponding damping by motor, the application that is 201110024298.6 as application number discloses the adjustable bearing circle road feel analogue means of a kind of angle range, motor by steering column end produces corresponding resistance, change back up pad upper rack length adjustment steering wheel angle scope, this device relates to rack-and-pinion transmission, structure is comparatively complicated, takes up room larger, road feel damping motor is lacked to control simultaneously.
Summary of the invention
The utility model is for the deficiencies in the prior art, a kind of automobile steering-by-wire simulation testing platform road feel analogue means has been proposed, this device adopts electronic control unit DSP development board and damping motor controller controls damping motor to produce damping, be applied to steering-by-wire simulation testing platform, guarantee that driver obtains " truly " road feel.
The utility model comprises bearing circle, steering column supporting seat, steering column, damping electric system, shaft coupling, angular transducer support, angular transducer and electronic control unit DSP development board.
The top of described steering column is all connected by bearing with steering column supporting seat with bottom, and top end is fixedly connected with bearing circle, and bottom end is provided with integrated spline; The middle part of steering column is fixedly installed damping worm gear.
Described damping electric system comprises damping motor, damping worm screw and damping electric machine controller; Described damping motor is fixedly installed on steering column supporting seat; The output shaft end of damping motor is fixedly installed damping worm screw; Damping worm gear on damping worm screw and steering column is connected; The input end of damping motor is connected with the output terminal of damping electric machine controller, the input end of damping electric machine controller is connected with the output terminal of electronic control unit DSP development board, and the input end of electronic control unit DSP development board is connected with the signal output part of angular transducer.
One end of described shaft coupling offers splined hole, and splined hole is connected with the spline fitted on steering column; The other end of shaft coupling offers angular transducer mounting hole, offers a plurality of set screw hole that run through shaft coupling outside surface on the wall of formation; Splined hole and angular transducer mounting hole coaxially arrange.
Described angular transducer support is L shaped plate, and an arm is fixedly installed on steering column supporting seat; That one end of angular transducer is disposed with is one-body molded, angular transducer back shaft and the angular transducer installation shaft of coaxial setting; Angular transducer back shaft is connected by bearing with another arm of angular transducer support, and angular transducer installation shaft stretches in angular transducer mounting hole; In each set screw hole, be provided with a holding screw.
The beneficial effects of the utility model:
1, angular transducer of the present utility model can record steering wheel angle, and angular signal is converted to voltage signal passes to electronic control unit DSP development board, the simulating signal of road feel damping is controlled in the output of electronic control unit DSP development board, and pass to damping motor controller controls damping motor and produce damping, signal transmission speed is fast, the hysteresis quality of having avoided spring-damp system to exist.
2, the utility model, by changing the damping control algolithm of electronic control unit DSP development board inside, obtains different motor damping effects, and more different damping control algolithms is obtained optimal road feel effect.
3, the utility model can, by changing the control algolithm of electronic control unit DSP development board, be adjusted the impact that bearing circle otherwise limit corner produces damping.
4, the utility model adopts damping worm screw and damping worm gear to transmit damping, make damping transmittance process smooth-going, without impacting.
5, the utility model is simple in structure, easy for installation, takes up room little.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is planar structure schematic diagram of the present utility model;
Fig. 3-1 is the cut-open view of shaft coupling in the utility model;
Fig. 3-2 are the A-A cut-open view of Fig. 3-1;
Fig. 4 is the assembling schematic diagram of steering column, shaft coupling and sensor in the utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As depicted in figs. 1 and 2, automobile steering-by-wire simulation testing platform road feel analogue means comprises bearing circle 1, steering column supporting seat 2, steering column 3, damping electric system, shaft coupling 5, angular transducer support 6, angular transducer 7 and electronic control unit DSP development board 8.
The top of steering column 3 is all connected by bearing with steering column supporting seat 2 with bottom, and top end is fixedly connected with bearing circle 1, and bottom end is provided with integrated spline 3-1; The middle part of steering column 3 is fixedly installed damping worm gear.
Damping electric system comprises damping motor 4-1, damping worm screw 4-2 and damping electric machine controller 4-3; Damping motor 4-1 is fixedly installed on steering column supporting seat 2; The output shaft end of damping motor 4-1 is fixedly installed damping worm screw 4-2; Damping worm gear on damping worm screw 4-2 and steering column 3 is connected; The input end of damping motor 4-1 is connected with the output terminal of damping electric machine controller 4-3, the input end of damping electric machine controller 4-3 is connected with the output terminal of electronic control unit DSP development board 8, and the input end of electronic control unit DSP development board 8 is connected with the signal output part of angular transducer 7.
As shown in Fig. 3-1 and Fig. 3-2, one end of shaft coupling 5 offers splined hole 5-1, and the spline 3-1 on splined hole 5-1 and steering column is connected; The other end of shaft coupling offers angular transducer mounting hole 5-2, offers three set screw hole 5-3 that run through shaft coupling outside surface on the wall of formation; Splined hole 5-1 and angular transducer mounting hole 5-2 coaxially arrange.
As shown in Figure 4, angular transducer support 6 is L shaped plate, and an arm is fixedly installed on steering column supporting seat 2; That one end of angular transducer 7 is disposed with is one-body molded, angular transducer back shaft 7-1 and the angular transducer installation shaft 7-2 of coaxial setting; Angular transducer back shaft 7-1 is connected by bearing with another arm of angular transducer support, and angular transducer installation shaft 7-2 stretches in angular transducer mounting hole 5-2; In each set screw hole 5-3, be provided with a holding screw 9.
The course of work of automobile steering-by-wire simulation testing platform road feel analogue means is as follows:
Steering wheel rotation 1, angular transducer 7 records steering wheel angle and angular signal is converted to voltage signal and passes to electronic control unit DSP development board 8, electronic control unit DSP development board 8 is exported the simulating signal of controlling road feel damping after processing by inner damping control algolithm, and passes to damping electric machine controller 4-3.Damping electric machine controller 4-3 identifies damping and produces direction and produce damping size from simulating signal, and drives damping motor 4-1 to produce corresponding motor damping, makes bearing circle obtain a reverse acting force, thereby obtains road surface road feel information.
Automobile steering-by-wire simulation testing platform road feel analogue means, can be for different traffic informations, by changing the damping control algolithm of electronic control unit DSP development board 8 inside and the control program of damping electric machine controller 4-3 inside, in equidirectional dish corner situation, obtain different motor damping effects, more different damping control algolithms can obtain optimal road feel.
Claims (1)
1. automobile steering-by-wire simulation testing platform road feel analogue means, comprises bearing circle, steering column supporting seat, steering column, damping electric system, shaft coupling, angular transducer support, angular transducer and electronic control unit DSP development board, it is characterized in that:
The top of described steering column is all connected by bearing with steering column supporting seat with bottom, and top end is fixedly connected with bearing circle, and bottom end is provided with integrated spline; The middle part of steering column is fixedly installed damping worm gear;
Described damping electric system comprises damping motor, damping worm screw and damping electric machine controller; Described damping motor is fixedly installed on steering column supporting seat; The output shaft end of damping motor is fixedly installed damping worm screw; Damping worm gear on damping worm screw and steering column is connected; The input end of damping motor is connected with the output terminal of damping electric machine controller, the input end of damping electric machine controller is connected with the output terminal of electronic control unit DSP development board, and the input end of electronic control unit DSP development board is connected with the signal output part of angular transducer;
One end of described shaft coupling offers splined hole, and splined hole is connected with the spline fitted on steering column; The other end of shaft coupling offers angular transducer mounting hole, offers a plurality of set screw hole that run through shaft coupling outside surface on the wall of formation; Splined hole and angular transducer mounting hole coaxially arrange;
Described angular transducer support is L shaped plate, and an arm is fixedly installed on steering column supporting seat; That one end of angular transducer is disposed with is one-body molded, angular transducer back shaft and the angular transducer installation shaft of coaxial setting; Angular transducer back shaft is connected by bearing with another arm of angular transducer support, and angular transducer installation shaft stretches in angular transducer mounting hole; In each set screw hole, be provided with a holding screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320394782.2U CN203414285U (en) | 2013-07-02 | 2013-07-02 | Automobile steer-by-wire simulation test bench road sense stimulation apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320394782.2U CN203414285U (en) | 2013-07-02 | 2013-07-02 | Automobile steer-by-wire simulation test bench road sense stimulation apparatus |
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| CN203414285U true CN203414285U (en) | 2014-01-29 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337205A (en) * | 2013-07-02 | 2013-10-02 | 杭州电子科技大学 | Steering wheel road feel simulation device of automobile line control steering emulation test bench |
| CN106706345A (en) * | 2016-11-25 | 2017-05-24 | 合肥工业大学 | Steering-by-wire system road feeling analog hardware-in-the-loop simulation platform and simulation method |
| CN110095293A (en) * | 2019-06-03 | 2019-08-06 | 桂林电子科技大学 | A kind of automobile behaviour is steady to test anti-reverse rotatable steering assistance device |
| CN112572606A (en) * | 2020-12-29 | 2021-03-30 | 浙江天行健智能科技有限公司 | Working condition fusion road sense simulation method based on SVM (support vector machine) and BP (back propagation) neural network |
| CN113092139A (en) * | 2021-04-30 | 2021-07-09 | 东风柳州汽车有限公司 | Steering wheel assembly operability verification device |
-
2013
- 2013-07-02 CN CN201320394782.2U patent/CN203414285U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337205A (en) * | 2013-07-02 | 2013-10-02 | 杭州电子科技大学 | Steering wheel road feel simulation device of automobile line control steering emulation test bench |
| CN103337205B (en) * | 2013-07-02 | 2015-04-22 | 杭州电子科技大学 | Steering wheel road feel simulation device of automobile line control steering emulation test bench |
| CN106706345A (en) * | 2016-11-25 | 2017-05-24 | 合肥工业大学 | Steering-by-wire system road feeling analog hardware-in-the-loop simulation platform and simulation method |
| CN110095293A (en) * | 2019-06-03 | 2019-08-06 | 桂林电子科技大学 | A kind of automobile behaviour is steady to test anti-reverse rotatable steering assistance device |
| CN112572606A (en) * | 2020-12-29 | 2021-03-30 | 浙江天行健智能科技有限公司 | Working condition fusion road sense simulation method based on SVM (support vector machine) and BP (back propagation) neural network |
| CN112572606B (en) * | 2020-12-29 | 2021-11-05 | 浙江天行健智能科技有限公司 | Working condition fusion road sense simulation method based on SVM (support vector machine) and BP (back propagation) neural network |
| CN113092139A (en) * | 2021-04-30 | 2021-07-09 | 东风柳州汽车有限公司 | Steering wheel assembly operability verification device |
| CN113092139B (en) * | 2021-04-30 | 2022-10-14 | 东风柳州汽车有限公司 | Steering wheel assembly operability verification device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20150702 |
|
| EXPY | Termination of patent right or utility model |