CN102009687A - Self-adaptive power-assisted steering system - Google Patents
Self-adaptive power-assisted steering system Download PDFInfo
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- CN102009687A CN102009687A CN2010105598278A CN201010559827A CN102009687A CN 102009687 A CN102009687 A CN 102009687A CN 2010105598278 A CN2010105598278 A CN 2010105598278A CN 201010559827 A CN201010559827 A CN 201010559827A CN 102009687 A CN102009687 A CN 102009687A
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Abstract
The invention discloses a self-adaptive power-assisted steering system. The self-adaptive power-assisted steering system comprises a steering electronic control unit (ECU) (2), a steering wheel pressure induction system (1) and a power-assisted steering execution system (3), wherein the steering wheel pressure induction system (1) is connected with the steering ECU (2); the steering ECU (2) provides a power-assisted scheme Sy according to an average pressure Fx fed back by the steering wheel pressure induction system (1); a corresponding relationship between the average pressure Fx and the power-assisted scheme Sy is stored in the steering ECU (2); and the power-assisted steering execution system (3) executes the power-assisted scheme Sy provided by the steering ECU (2). The self-adaptive power-assisted steering system can flexibly provide the power-assisted scheme according to the requirement of a driver by increasing the steering wheel pressure induction system and improving the internal performance of the steering ECU. The self-adaptive power-assisted steering system can meet the driving requirements of the common people and can also meet the requirements of people with small hand power and people who pursue operation stability and ask for a full and heavy steering force. Due to the selection of the power-assisted schemes, humanized requirements on automobile driving can be met.
Description
Technical field
The invention belongs to the wheel steering system field, be specifically related to a kind of self adaptation servo steering system.
Background technology
The present servo steering system that exists, be that 2004100094938 patent of invention discloses a kind of electric power steering scheme and has following problem as application number: promptly the power-assisted scheme is in case determine just to revise the adjustment power-assisted scheme that can't vary with each individual.And because the growth gradually of automotive market, the driving population is diversified trend.The needed vehicle booster of different driving population turns to the demand difference, less as the Ms owing to hand-power, need a smaller power-assisted scheme, and the general power-assisted scheme of domestic consumer just can satisfy the demands, and for the specific user, such as relatively pursuing the handling stability energy, steering effort is required full, heavier crowd, then need to provide a relative heavy weight power-assisted scheme.Existing electric boosting steering system can't satisfy different driving population's demand because in a single day the power-assisted scheme is determined promptly can't revise.
Summary of the invention
The object of the present invention is to provide a kind of self adaptation servo steering system, solve existing servo-steering scheme and can not satisfy the problem that different crowd is driven demand.
To achieve these goals, the technical solution used in the present invention is:
Described this self adaptation servo steering system comprises bearing circle pressure sensitive system, turns to ECU and servo-steering actuating system.
Described bearing circle pressure sensitive system is connected with turning to ECU.The described ECU of turning to is connected with the servo-steering actuating system.
Described bearing circle pressure sensitive system is applied to average pressuure Fx on the bearing circle with chaufeur and feeds back to and turn to ECU.
The described average pressure value Fx that turns to ECU according to bearing circle pressure sensitive system feedback provides power-assisted scheme Sy.
Described servo-steering actuating system is carried out the power-assisted scheme Sy that turns to ECU to provide according to the control that turns to ECU.
Described servo-steering actuating system, being generally the electric booster system by component set-ups such as sensor, motor, steering tube cornice countershaft assembly, steering box band tie rod assemblies, also can be the electric-controlled hydraulic force aid system that is similar to component set-ups such as hydraulic power-assisted steering oil pump, hydraulic variable servo-steering machine band tie rod assembly simultaneously.
Store the corresponding relation between power-assisted scheme Sy and the bearing circle average pressuure coefficient Fx among the described ECU of turning to.Described corresponding relation performance is: bearing circle pressure sensitive system feedback is given each the average pressure value Fx that turns to ECU, turns to ECU all to a power-assisted scheme Sy should be arranged.
Corresponding relation between power-assisted scheme Sy that stores among the described ECU of turning to and the bearing circle average pressuure coefficient Fx obtains by the mode to common servo steering system experiment.
Process of the test is: confirmed test personnel at first, provide the vehicle of the servo steering system that has the pressure sensitive system on the bearing circle and different power-assisted schemes are housed to carry out test ride to above testing crew, act on average pressuure F on the bearing circle by gathering different testing crews, ordering is taken as F1 from small to large to F, F2, F3, F4, F5 ... Fx, gather the optimal power-assisted scheme that above test ride personnel choose separately, be defined as S1 successively according to the ordering from comfortable to heavy of power-assisted scheme, S2, S3, S4, S5 ... Sy, pass through repetition test, draw minimum average B configuration pressure Fmin and maximum average pressuure Fmax the bearing circle average pressuure Fx from above data analysis, from the power-assisted scheme Sy of system, find out the power-assisted scheme Smin of an optimal power-assisted scheme simultaneously as Fmin, this scheme should fully take into account high stability and safety, find the power-assisted scheme Smax of an only power-assisted scheme again as maximum power-assisted scheme Fmax, during required direction dish average pressuure Fmin＜Fx＜Fmax, system's power-assisted scheme satisfies Smin＜Sy＜Smax, and Fx and Sy are the linear ratio relation, at the corresponding relation of setting up on the above basis between Fx and the Sy.
The cooresponding power that acts in the bearing circle pressure sensitive system of minimum power-assisted scheme Smin is Fmin, and Smin can be used as the less crowd's of hand-power power-assisted concept selection, during the power Fx on acting on bearing circle pressure sensitive system≤Fmin, gets power-assisted scheme Smin.
The cooresponding power that acts in the bearing circle pressure sensitive system of maximum power-assisted scheme Smax is Fmax, Smax can be used as and relatively pursues the handling stability energy, steering effort is required full, heavier crowd's power-assisted concept selection, during the power Fx on acting on bearing circle pressure sensitive system 〉=Fmax, get power-assisted scheme Smax.
When the power Fx on acting on bearing circle pressure sensitive system satisfies Fmin＜Fx＜Fmax,, select the power-assisted scheme Sy that is fit to according to the corresponding relation that above experiment obtains, with this power-assisted scheme as generally driving population's selection.
The ECU that turns in the described self adaptation servo steering system provides power-assisted scheme Sy according to the average pressuure Fx that the driving population acts in the bearing circle pressure sensitive system, each power-assisted scheme Sy that drives can remain unchanged once selection, and only ability is selected the power-assisted scheme again according to user's difference when vehicle is opened again.
Described self adaptation servo steering system can be applicable in electro-hydraulic servo steering system and the electric boosting steering system.
Corresponding relation between power-assisted scheme Sy that stores among the described ECU of turning to and the bearing circle average pressuure coefficient Fx has covered all groups' power-assisted concept selection, has improved the internal performance of the described ECU of turning to.
The invention has the advantages that: the invention provides a kind of self adaptation servo steering system, can be applicable in electro-hydraulic servo steering system and the electric boosting steering system, reach turning to the improvement of ECU internal performance by increasing bearing circle pressure sensitive system, described self adaptation servo steering system can provide the power-assisted scheme flexibly according to the demand of chaufeur.Since among the present invention power-assisted Scheme Selection scope more comprehensively, more flexible, it not only can satisfy the demand that general crowd drives, and can satisfy the less crowd of hand-power simultaneously and relatively pursue handling stability energy,, heavy weight crowd's full to the steering effort requirement demand.Among the present invention, the power-assisted Scheme Selection is finished by artificial test, and the power-assisted scheme of test gained can fully satisfy vehicular drive hommization requirement fully from the hommization angle.
Description of drawings
Below the content of Figure of description expression of the present invention and the mark among the figure are made brief description:
Fig. 1 is the structural representation of described self adaptation servo steering system;
Fig. 2 is the power-assisted scheme Sy that stores among the described ECU of turning to and the corresponding relation linear graph between the bearing circle average pressuure coefficient Fx;
Fig. 3 is the design sketch of servo steering system in the prior art;
Fig. 4 is for being suitable for the design sketch of described self adaptation servo steering system;
Mark among the above-mentioned figure is:
1, bearing circle pressure sensitive system; 2, turn to ECU, 3, the servo-steering actuating system.
The specific embodiment
Contrast accompanying drawing below, by description to embodiment, to the effect of the specific embodiment of the present invention such as the related direct annexation of each several part, each several part and principle of work etc., be described in further detail, design of the present invention, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
As shown in Figure 1, described self adaptation servo steering system comprises bearing circle pressure sensitive system 1, turns to ECU 2 and servo-steering actuating system 3.
Described bearing circle pressure sensitive system 1 is connected with turning to ECU 2.The described ECU of turning to 2 is connected with servo-steering actuating system 3.
The average pressuure Fx that described bearing circle pressure sensitive system 1 is used on the direction of measurement dish.
Described bearing circle pressure sensitive system 1 is applied to average pressuure Fx on the bearing circle with chaufeur and feeds back to and turn to ECU 2.
The described average pressure value Fx that turns to ECU 2 according to bearing circle pressure sensitive system 1 feedback provides power-assisted scheme Sy.
Described servo-steering actuating system 3 is carried out the power-assisted scheme Sy that turns to ECU 2 to provide according to the control that turns to ECU 2.
Described servo-steering actuating system 3, being generally the electric booster system by component set-ups such as sensor, motor, steering tube cornice countershaft assembly, steering box band tie rod assemblies, also can be the electric-controlled hydraulic force aid system that is similar to component set-ups such as hydraulic power-assisted steering oil pump, hydraulic variable servo-steering machine band tie rod assembly simultaneously.
Store the corresponding relation between power-assisted scheme Sy and the bearing circle average pressuure coefficient Fx among the described ECU of turning to 2.Described corresponding relation performance is: bearing circle pressure sensitive system feedback is given each the average pressure value Fx that turns to ECU 2, turns to ECU 2 all to a power-assisted scheme Sy should be arranged.
The described power-assisted scheme Sy of storage among the ECU 2 and the corresponding relation between the bearing circle average pressuure Fx of turning to obtains by the mode to common servo steering system experiment.
Process of the test is: confirmed test personnel at first, provide the vehicle of the servo steering system that has the pressure sensitive system on the bearing circle and different power-assisted schemes are housed to carry out test ride to above testing crew, act on average pressuure F on the bearing circle by gathering different testing crews, ordering is taken as F1 from small to large to F, F2, F3, F4, F5 ... Fx, gather the optimal power-assisted scheme that above test ride personnel choose separately, be defined as S1 successively according to the ordering from comfortable to heavy of power-assisted scheme, S2, S3, S4, S5 ... Sy, pass through repetition test, draw minimum average B configuration pressure Fmin and maximum average pressuure Fmax the bearing circle average pressuure Fx from above data analysis, from the power-assisted scheme Sy of system, find out the power-assisted scheme Smin of an optimal power-assisted scheme simultaneously as Fmin, this scheme should fully take into account high stability and safety, find the power-assisted scheme Smax of an only power-assisted scheme again as maximum power-assisted scheme Fmax, during required direction dish average pressuure Fmin＜Fx＜Fmax, system's power-assisted scheme satisfies Smin＜Sy＜Smax, and Fx and Sy are the linear ratio relation, at the corresponding relation of setting up on the above basis between Fx and the Sy.
As shown in Figure 2, the cooresponding power that acts in the bearing circle pressure sensitive system of minimum power-assisted scheme Smin is Fx≤Fmin; The cooresponding power that acts in the bearing circle pressure sensitive system of maximum power-assisted scheme Smax is Fx 〉=Fmax; The general cooresponding power that acts in the bearing circle pressure sensitive system of power-assisted scheme Sy is Fmin＜Fx＜Fmax.
As shown in Figure 4, Smin is as the less crowd's of hand-power power-assisted concept selection, during the power Fx on acting on bearing circle pressure sensitive system≤Fmin, gets power-assisted scheme Smin.
Smax pursues the handling stability energy as a comparison, and steering effort is required full, heavier crowd's power-assisted concept selection, during the power Fx on acting on bearing circle pressure sensitive system 〉=Fmax, gets power-assisted scheme Smax.
When the power Fx on acting on bearing circle pressure sensitive system satisfies Fmin＜Fx＜Fmax, select the power-assisted scheme Sy that is fit to, with this power-assisted scheme as generally driving population's selection.
The ECU 2 that turns in the described self adaptation servo steering system provides power-assisted scheme Sy according to the average pressuure Fx that the driving population acts in the bearing circle pressure sensitive system 1, each power-assisted scheme Sy that drives can remain unchanged once selection, and only ability is selected the power-assisted scheme again according to user's difference when vehicle is opened again.
Described self adaptation servo steering system can be applicable in electro-hydraulic servo steering system and the electric boosting steering system.
Comparison diagram 3 and Fig. 4, the range of choice of power-assisted scheme Sy will be much larger than Fig. 3 among Fig. 4, after being suitable for described self adaptation servo steering system, power-assisted Scheme Selection scope more comprehensively, more flexible, it not only can satisfy the demand that general crowd drives, and can satisfy the less crowd of hand-power simultaneously and relatively pursue handling stability energy,, heavy weight crowd's full to the steering effort requirement demand.Simultaneously, because power-assisted Scheme Selection relation is finished by artificial test among the present invention, the power-assisted scheme of test gained can fully satisfy vehicular drive hommization requirement fully from the hommization angle.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (4)
1. self adaptation servo steering system, it is characterized in that: comprise direction of measurement dish average pressuure Fx bearing circle pressure sensitive system (1), provide turning to ECU (2) and carrying out the servo-steering actuating system (3) of power-assisted scheme Sy of power-assisted scheme Sy, the described ECU of turning to (2) two ends are connected with bearing circle pressure sensitive system (1) and servo-steering actuating system (3) respectively, and the described ECU of turning to (2) storage inside has the corresponding relation between bearing circle average pressuure Fx and the power-assisted scheme Sy.
2. according to the described self adaptation servo steering system of claim 1, it is characterized in that: the bearing circle average pressuure Fx of the described ECU of turning to (2) storage inside and the corresponding relation between the power-assisted scheme Sy obtain by artificial test, and the corresponding relation between described bearing circle average pressuure Fx and the power-assisted scheme Sy is specially; Fx≤Fmin gets power-assisted scheme Smin; Fx 〉=Fmax gets power-assisted scheme Smax; Fmin＜Fx＜Fmax gets power-assisted scheme Sy, is linear relationship between Fx and the Sy.
3. according to the described self adaptation servo steering system of claim 2, it is characterized in that: described servo-steering actuating system (3) is for by the electric booster system of component set-ups such as sensor, motor, steering tube cornice countershaft assembly, steering box band tie rod assembly or by the electric-controlled hydraulic force aid system of component set-ups such as hydraulic power-assisted steering oil pump, hydraulic variable servo-steering machine band tie rod assembly.
4. according to claim 1 or 2 or 3 described self adaptation servo steering systems, it is characterized in that: it is applied in electro-hydraulic servo steering system and the electric boosting steering system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105598278A CN102009687A (en) | 2010-11-25 | 2010-11-25 | Self-adaptive power-assisted steering system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105598278A CN102009687A (en) | 2010-11-25 | 2010-11-25 | Self-adaptive power-assisted steering system |
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| CN102009687A true CN102009687A (en) | 2011-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843056A (en) * | 2014-07-08 | 2015-08-19 | 北汽福田汽车股份有限公司 | Hydraulic power steering system, vehicle and steering method of hydraulic power steering system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843056A (en) * | 2014-07-08 | 2015-08-19 | 北汽福田汽车股份有限公司 | Hydraulic power steering system, vehicle and steering method of hydraulic power steering system |
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Application publication date: 20110413 |