CN103171611B - Automatically controlled variable ratio steering bindiny mechanism, there is the wheel steering system of this bindiny mechanism - Google Patents
Automatically controlled variable ratio steering bindiny mechanism, there is the wheel steering system of this bindiny mechanism Download PDFInfo
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- CN103171611B CN103171611B CN201310094627.3A CN201310094627A CN103171611B CN 103171611 B CN103171611 B CN 103171611B CN 201310094627 A CN201310094627 A CN 201310094627A CN 103171611 B CN103171611 B CN 103171611B
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Abstract
The invention provides a kind of automatically controlled variable ratio steering bindiny mechanism, comprise the power input shaft that carrying turns to rotary power under the steering angle of intention, the power take-off shaft of outputting rotary power, described power input shaft transmits power with power take-off shaft by the transmission device both being connected, it is characterized in that described transmission device comprises: the driving wheel that wheel footpath is adjustable, is connected with power input shaft synchronous axial system; The flower wheel that wheel footpath is adjustable, is connected with power take-off shaft synchronous axial system, and is connected with driving wheel by connecting band; Wheel footpath adjustment driver train, under the control of the control unit to the wheel footpath of driving wheel and flower wheel adjust to make connecting band ensure between driving wheel and flower wheel all to power transmission.Meanwhile, present invention also offers a kind of wheel steering system with above-mentioned automatically controlled variable-speed ratio bindiny mechanism.Structure of the present invention is simple, and cost is low, easily realizes, and is provided with fault detection disposal system simultaneously, can ensure safety when vehicle travels.
Description
Technical field
The present invention relates to one and turn to bindiny mechanism, particularly relate to a kind of automatically controlled variable ratio steering bindiny mechanism, the invention still further relates to a kind of wheel steering system with this automatically controlled variable ratio steering bindiny mechanism simultaneously.
Background technology
Along with vehicle gets their way into people's lives more and more, the requirement of customer to the safety of vehicle and the traveling comfort of manipulation improves constantly, in order to meet the needs that customer increases day by day, each car production producer has dropped into a large amount of manpowers and financial resources are researched and developed the safety performance of vehicle and handling, the up-to-date technology of be also born up to now a large amount of vehicle safeties and manipulation invention.Wherein, steering swivel system, as one of the system of core the most in handling, is also one of key factor of vehicle safety simultaneously, therefore, becomes to the research and development of steering swivel system the system research and development that each car production producer payes attention to the most.This wherein just comprises the steering swivel system realizing deflection angle superposition with two groups of planet rows of BMW manufacturer research and development, and Audi, Toyota, the steering swivel system realizing deflection angle superposition with harmonic gear-type speed reduction gearing that the producers such as daily output adopt, two kinds of above-mentioned steering swivel systems are all that the superposition by realizing deflection angle controls turning to of vehicle, namely when vehicle be in low speed driving chaufeur steering wheel rotation vehicle is turned to time, bearing circle drives deflector to drive Vehicular turn by middle steering gear, due to the effect of steering swivel system, it can produce a deflection angle identical with bearing circle hand of rotation, the actual anglec of rotation exporting to deflector is the superposition angle by the anglec of rotation of bearing circle and the middle steering gear anglec of rotation, therefore, when low vehicle speeds, chaufeur only need rotate bearing circle low-angle can realize turning to vehicle wide-angle, reduce the demand of steering effort, facilitate the operation of chaufeur.
Run at high speed when vehicle is in, when chaufeur rotation bearing circle carries out steering operation to vehicle, bearing circle turns to drive mechanism to drive deflector to drive Vehicular turn by centre, now, due to the effect of middle steering gear, a deflection angle contrary with bearing circle hand of rotation can be produced, the actual anglec of rotation exporting to deflector is the superposition angle by the angle of the rotation of bearing circle and the middle steering gear anglec of rotation equally, therefore, vehicle is when running at high speed, chaufeur needs rotation one to be greater than the deflection angle that it turns to intention, guarantee vehicle turns to according to the intention of chaufeur.The safety of vehicle when running at high speed can be ensured like this.
Although the safety that above-mentioned steering swivel system can either be met customer need and ease for operation, owing to adopting the steering system structural of double planetary gear unit complicated, processing difficulties, technology acuracy requires high, and cost is also higher, and noise during operation is large; And adopt the requirement of the steering swivel system of harmonic gear structure to carft of construction high, and there is the high problem of cost equally, therefore, existing transition, system was unfavorable for popularizing.
Summary of the invention
For solving the deficiencies in the prior art, the invention provides a kind of automatically controlled variable ratio steering bindiny mechanism, the convergent-divergent to input redirect angle can be realized, when being applied on vehicle, send deflector to again after can zooming in or out accordingly according to the corner of the operation conditions of vehicle to steering wheel for vehicle, ensure operating characteristic and the safety performance of vehicle, structure is simple simultaneously, cost is low, easily realizes.
For achieving the above object, automatically controlled variable ratio steering bindiny mechanism of the present invention comprises the power input shaft that carrying turns to rotary power under the steering angle of intention, the power take-off shaft of outputting rotary power, described power input shaft transmits power with power take-off shaft by the transmission device both being connected, and described transmission device comprises:
The driving wheel that wheel footpath is adjustable, is connected with power input shaft synchronous axial system;
The flower wheel that wheel footpath is adjustable, is connected with power take-off shaft synchronous axial system, and is connected with driving wheel by connecting band;
Wheel footpath adjustment driver train, adjusts to make the transmission of power between connecting band guarantee driving wheel and flower wheel to the wheel footpath of driving wheel and flower wheel under the control of the control unit.
As limitation of the invention: also comprise transmission device when losing efficacy, the rotary power turned under the steering angle of intention be directly passed to the inefficacy rotational coupling mechanism of power take-off shaft.
As limitation of the invention further: described inefficacy rotational coupling mechanism comprises carrying and turns to rotary power under the steering angle of intention and this rotary power passed to respectively the transfer power transmission mechanism of power input shaft and power take-off shaft and the power transmission between transport sector with power take-off shaft cuts off or is connected by transfer under the control of the control unit fault power-transfer clutch.
Further limit as to of the present invention: described sub-power transport sector comprises that synchronous axial system is connected in input gear on power take-off shaft, synchronous axial system is connected in power input shaft engage the output gear be connected with input gear, and described fault power-transfer clutch connection is arranged on the power take-off shaft between input gear and flower wheel.
Limit as to another kind of the present invention: described driving wheel comprise coaxially be connected with power input shaft initiatively fix cone pulley, and initiatively fix active movement cone pulley that cone pulley is oppositely arranged, that can slide on power input shaft under the driving of driver train; Described flower wheel comprises the driven fixing cone pulley be coaxially connected with power take-off shaft, driven movable cone pulley that be oppositely arranged with driven fixing cone pulley, that can slide on power take-off shaft under the driving of driver train, the described conical suface initiatively fixing cone pulley and active movement cone pulley forms the support of driving wheel to connecting band, and the conical suface of described driven fixing cone pulley and driven movable cone pulley forms the support of flower wheel to connecting band.
Restriction for wheel footpath adjustment driver train: described wheel footpath adjustment driver train comprises and drives active movement cone pulley under the control of the control unit along power input shaft towards or away from the first driver train initiatively fixing cone pulley movement, and drive driven movable cone pulley along second driver train of power take-off shaft towards or away from driven fixing cone pulley movement under the control of the control unit, the power that the first described driver train exports passes to active movement cone pulley by the first push rod, and the power that the second driver train exports passes to driven movable cone pulley by the second push rod.
Further restriction as to wheel footpath adjusting mechanism: be fixed with the first thrust baring between described first push rod and active movement cone pulley, be fixed with the second thrust baring between the second push rod and driven movable cone pulley.
Present invention also offers a kind of vehicle electrically controlling variable ratio steering system, comprise the bearing circle for driver's operation, described bearing circle connects the power input shaft of the rotation outputting power under the steering angle for accepting wheel steering intention by steering inner articulated shaft, power input shaft connects the power take-off shaft being used for outputting rotary power by automatically controlled variable ratio steering bindiny mechanism, described power take-off shaft and Vehicular turn actuating unit turn to and are connected, and described automatically controlled variable ratio steering connection structure has structure described above.
As the restriction to vehicle electrically controlling variable ratio steering system; Also comprise the testing agency of losing efficacy for detecting automatically controlled variable-speed ratio bindiny mechanism, it sends the disablement signal detected to control unit;
For the alarm mechanism reminding the automatically controlled variable-speed ratio bindiny mechanism of chaufeur to lose efficacy, the alerting signal sent of its reception control unit, send sound and light alarm.
Restriction as to testing agency: described testing agency comprises:
Be located at the rotary angle transmitter on bearing circle, it detects the steering angle of bearing circle, and the steering angle detected is passed to coupled control unit;
Be located at the angle accumulation sensor in deflector, it is for detecting the steering angle of deflector, and by each steering angle accumulation superposition, the result after superposition passes to coupled control unit;
And the motor position sensor be located on wheel footpath adjustment driver train, for detecting the location information of the first driver train and the second driver train, and send the information of detection to coupled control unit.
Adopt as above technical scheme, following technique effect can be reached:
Power input shaft of the present invention is connected by taking turns the footpath adjustable flower wheel that just driving wheel driven wheel footpath is variable with between power take-off shaft, thus turn to intention to pass to turn to output shaft band motor vehicle to turn to by what turn to input shaft to input, due to driving wheel and flower wheel wheel footpath all can adjust under the control of the control unit, therefore can motivation of adjustment input end to the transmitting ratio of clutch end, namely it is also different that different driving wheel wheel footpaths and different flower wheels take turns the ratio transmitted in footpath, the transmitting ratio of whole wheel steering system can be exchanged by this operation, different transmitting ratios can be selected under different running state of the vehicle, achieve the double requirements of client to vehicle safety and operability, and mechanism is simple, cost is low, be beneficial to widespread use,
The present invention is also provided with inefficacy rotational coupling mechanism, when the automatically controlled variable ratio steering bindiny mechanism in the present invention lost efficacy, the rotary power that chaufeur inputs directly is transferred to power take-off shaft by inefficacy rotation connection structure under the effect of control unit, and then can control Vehicular turn actuating unit drive vehicle turn to, ensure that steering swivel system remains valid, and then the generation of contingency can be avoided, ensure the personal safety of passenger inside the vehicle;
In addition, vehicle electrically controlling variable ratio steering system provided by the invention is also provided with the testing agency detected this automatically controlled variable-speed ratio bindiny mechanism and lost efficacy, and during the inefficacy of this bindiny mechanism, send the warning device of sound and light alarm, therefore, when this bindiny mechanism lost efficacy, testing agency can detect fail message in time, sound and light alarm can be sent by alarm mechanism, this transmission device of chaufeur is reminded to lose efficacy, chaufeur can avoid the generation of contingency by adjustment operation, ensure the personal safety of occupant.
Accompanying drawing explanation
Do further to describe in detail to the present invention below in conjunction with the drawings and the specific embodiments:
Fig. 1 is the structural representation of the embodiment of the present invention one;
The structural representation of the first driver train 61 in the embodiment of the present invention one during Fig. 2;
Fig. 3 is the structural representation of the embodiment of the present invention two;
Fig. 4 is the system principle diagram to automatically controlled variable-speed ratio bindiny mechanism failure detection, warning in the embodiment of the present invention two;
Fig. 5 is when in the embodiment of the present invention, vehicle is in different mode, the diagram of curves of steering gear ratio and speed of a motor vehicle relation.
In figure: 1, power input shaft; 2, power take-off shaft; 3, driving wheel; 31, initiatively cone pulley is fixed; 32, active movement cone pulley; 4, flower wheel; 41, driven fixing cone pulley; 42, driven movable cone pulley; 5, connecting band; 6, fault power-transfer clutch; 7 reversing gears; 71, input gear; 72, output gear; 81, the first driver train; 82, the second driver train; 91 first push rods; 92, the second push rod; 101, the first thrust baring; 102, the second thrust baring; 11, bearing circle; 12, steering inner articulated shaft; 13, deflector; 14, rotary angle transmitter; 15, corner accumulation sensor; 16, motor position sensor; 17, combined aural and visual alarm.
Detailed description of the invention
Embodiment one
The automatically controlled variable ratio steering bindiny mechanism of the one that the present embodiment relates to comprises: carrying turns to the power input shaft 1 of rotary power under the steering angle of intention, the power take-off shaft 2 of outputting rotary power, described power input shaft 1 transmits power with power take-off shaft 2 by the transmission device both being connected.Wherein, described transmission device comprises:
The driving wheel 3 that wheel footpath is adjustable, be connected with power input shaft 1 synchronous axial system, its structure as shown in Figure 1, comprising: initiatively fix cone pulley 31, described cone pulley 31 of initiatively fixing coaxially is connected with power input shaft 1, can with under the drive of power input shaft 31 with power input shaft 1 synchronous axial system; Active movement cone pulley 32, with initiatively fix cone pulley 31 and be oppositely arranged, the conical surface of the conical surface and active movement cone pulley 32 of namely initiatively fixing cone pulley 31 is oppositely arranged, simultaneously, active movement cone pulley 32 can slide under the driving of driver train on power input shaft 1, to move towards or away from initiatively fixing cone pulley 31.
The flower wheel 4 that wheel footpath is adjustable, be connected with power take-off shaft 2 synchronous axial system, and be connected with driving wheel 3 by connecting band 5, its structure as shown in Figure 1, comprise: driven fixing cone pulley 41, coaxially be connected with power take-off shaft 2, can with power take-off shaft 2 synchronous axial system, output power to follow-up actuating unit; Driven movable cone pulley 42, be oppositely arranged with driven fixing cone pulley 41, namely the conical surface of driven fixing cone pulley 41 and the conical surface of driven movable cone pulley 42 are oppositely arranged, simultaneously, driven movable cone pulley 42 can slide under the driving of driver train on power take-off shaft 2, to move towards or away from driven fixing cone pulley 41.
In order to the rotary power making driving wheel 3 accept passes to flower wheel 4, and then make the rotary power of power input shaft 1 pass to power take-off shaft 2, transmission of power is carried out by connecting band 5 between described driving wheel 3 and flower wheel 4, wherein in order to ensure the transmission effect of connecting band 5 pairs of power, the conical suface initiatively fixing cone pulley 31 and active movement cone pulley 32 in the present embodiment forms the support of driving wheel 3 pairs of connecting bands 5, and driven fixing cone pulley 41 and the conical suface of driven movable cone pulley 42 form the support of flower wheel 4 pairs of connecting bands 5.Just based on the support concept of above-mentioned driving wheel 3 with flower wheel 4 pairs of connecting bands 5, and the position relationship initiatively fixed between cone pulley 31 and active movement cone pulley 32, between driven fixing cone pulley 41 and driven movable cone pulley 42, the Power output ratio between driving wheel 3 and flower wheel 4 can be adjusted.Meanwhile, from the viewpoint of structure and the intensity of the present embodiment, connecting band 5 adopts steel band.
The present embodiment also comprises wheel footpath adjustment driver train, it can adjust the wheel footpath of driving wheel 3 and flower wheel 4 under the control of the control unit, to make connecting band 5 fit with driving wheel 3 and flower wheel 4 all the time, ensure the transmission of power between driving wheel 3 and flower wheel 4.Its structure is as shown in Figure 2: comprise the first driver train 81, it can realize the driving to active movement cone pulley 31 under the control of the control unit, moves along power input shaft 1 to make active movement cone pulley 32 towards or away from initiatively fixing cone pulley 31; Second driver train 82, it can realize the driving to driven movable cone pulley 42 under the control of the control unit, moves along power take-off shaft 2 to make driven movable cone pulley 42 towards or away from driven fixing cone pulley 41.In order to make the structure of the present embodiment simpler, described first driver train 81 and the second driver train 82 adopt coaxial motor, and motor adopts ball-screw-transmission technology export power, drive active movement cone pulley 32 and driven movable cone pulley 42 respectively, its concrete structure is for shown in Fig. 2: the rotor 81-1 of the first described driver train 81 is provided with negative thread, be located in rotor 81-1 with externally threaded first push rod 91 be meshed with negative thread for one, and be provided with circulating ball 81-2 between the negative thread of described outside thread and rotor 81-1, motor in the running rotor 81-1 rotates, the first push rod 91 is driven to rotate by circulating ball 81-2, and then make the first push rod 91 sway.The mechanism of the second driver train 82 is identical with the structure of above-mentioned first driver train 81.
And on active movement cone pulley 32, being installed with the first thrust baring 101, driven movable cone pulley 42 being installed with the second thrust baring 102, first push rod 91 by the first thrust baring 101 drives active movement cone pulley 32 to move along power input shaft 1; Second push rod 92 drives driven movable cone pulley 42 to move along power take-off shaft by the second thrust baring 102.
In order to improve the present embodiment further, also comprise inefficacy rotational coupling mechanism, when transmission device lost efficacy, the rotary power turned under the steering angle of intention can be directly passed to power take-off shaft by described inefficacy rotational coupling mechanism.Its structure as shown in Figure 1, comprising: transfer power transmission mechanism, and it can carry rotary power under the steering angle turning to intention, and this rotary power is passed to power input shaft 1 and power take-off shaft 2 respectively.Sub-power transport sector in the present embodiment adopts reversing gear 7, it comprises input gear 71 and output gear 72, wherein said input gear 71 synchronous axial system is connected on power take-off shaft 2, and output gear 72 synchronous axial system is connected on power input shaft 1, and engages connected with input gear 71.
Described inefficacy rotational coupling mechanism also comprises fault power-transfer clutch 6, and the power transmission between sub-power transport sector with power take-off shaft 2 can cut off or be connected by under the control of the control unit.Described fault power-transfer clutch 6 connection is arranged on the power take-off shaft 2 between input gear 71 and flower wheel 3.
Embodiment two
The present embodiment relates to a kind of vehicle electrically controlling variable ratio steering system, its structure is as shown in Figure 3: comprise the bearing circle 11 for driver's operation, described bearing circle 11 connects power input shaft 1 by steering inner articulated shaft 12, power input shaft 1 connects by the automatically controlled variable ratio steering bindiny mechanism described in embodiment one power take-off shaft 2 being used for outputting rotary power, and described power take-off shaft 2 turns to bogie of car 13 and is connected.Due to the structure that the automatically controlled variable-speed ratio bindiny mechanism adopted in the present embodiment is in embodiment one, therefore, again repeat no more the structure of this bindiny mechanism.
In addition, the present embodiment is in order to also be provided with detection alarm system when bindiny mechanism lost efficacy, and its structure as shown in Figure 4, comprising: the testing agency of inefficacy, whether lost efficacy for detecting automatically controlled variable-speed ratio bindiny mechanism, and the signal detected sends control unit to.Failure detection mechanism in the present embodiment adopts steering angle sensor 14, angle accumulation sensor 15 and motor position sensor 16.
Wherein steering angle sensor 14 is fixedly arranged on bearing circle 1, angle accumulation sensor 15 is fixedly arranged in deflector 13, both coordinates whether normally transmit power for the connecting band detected between driving wheel 3 and flower wheel 4, once there is the situation of connecting band fracture, the signal that control unit can detect according to rotary angle transmitter 14 and angle accumulation sensor 15 judges whether the connecting band between driving wheel 3 and flower wheel 4 ruptures, specifically be detected as: when chaufeur rotates bearing circle 11, angular transducer 14 can sense this rotation information, the corner information that detects shoulder to shoulder transmit be connected with its signal output part to control unit, angle accumulation sensor 15 be installed in deflector 13 pinion end, when chaufeur rotates bearing circle 1 and drives deflector 13 to rotate, it can sense the angle of the rotation of deflector 13, and by superposing to the anglec of rotation of sensing at every turn, send superposing the information obtained the control unit be connected with its signal output part to simultaneously, control unit not only will receive the information that rotary angle transmitter 14 transmits jointly with angle accumulation sensor 15 simultaneously, when often receiving the angle information of rotary angle transmitter 14 transmission simultaneously, the angle information that angle accumulation sensor 15 transmits must have cumulative normal when could judge that cone pulley steel belt driving mechanism works by the relatively last angle information transmitted, once there is the situation of fracture in connecting band 5, control unit receives the information that rotary angle transmitter 14 detects, the relatively last information of the information that angle accumulation sensor 15 detects but is not accumulated, now, control unit is sentenced connecting band 5 and is ruptured.And motor position sensor 16 is for detecting the running state of motor, and the information detected being passed to control unit, finding this abnormal signal once control unit, judge that motor breaks down.
Described detection alarm system also comprises the alarm mechanism for reminding the automatically controlled variable-speed ratio bindiny mechanism of chaufeur to lose efficacy, the present embodiment adopts combined aural and visual alarm 17, once motor breaks down, or connecting band ruptures, described combined aural and visual alarm 17 will the alerting signal sent of reception control unit, send sound and light alarm, remind chaufeur electromagnetism variable-speed ratio bindiny mechanism et out of order, control unit can send signal to fault power-transfer clutch 6 simultaneously, make it close, directly by the Power output of steering inner articulated shaft 12 to power take-off shaft 2, the steering swivel system of vehicle is made to remain valid, ensure the personal safety of passenger inside the vehicle.
The steering swivel system of vehicle operationally, can be divided into Three models by the vehicle of the present embodiment:
(1) fixed drive ratio pattern: under this pattern, the relation of the speed of a motor vehicle and transmitting ratio is as shown in the K1 curve in Fig. 5: the first motor 61 and the second motor 62 drive the first push rod 71 and the second push rod 72 to be adjusted to initial position respectively, namely bearing circle 1 is 1:1 with the transmitting ratio of deflector 14 miniature gears input end, along with the change of the speed of a motor vehicle, transmitting ratio is constant all the time.
(2) comfort mode: under this pattern, the relation of the speed of a motor vehicle and steering gear ratio is as shown in the K2 curve in Fig. 5: control unit adjusts control policy automatically according to the pattern selected, control unit will gather vehicle speed signal, the angular signal of bearing circle 11, and yaw angle acceleration signal is analyzed, in the with good grounds speed of a motor vehicle of control unit storage inside, steering wheel angle, and yaw angle acceleration calculation obtains the corresponding program of transmitting ratio, therefore, according to above-mentioned information, control unit can change transmitting ratio according to actual conditions, concrete adjustment is as follows: during low vehicle speeds, need less steering gear ratio that the operation of chaufeur could be made more easy, turn to more flexible, now the first driver train 81 and the second driver train 82 are under the control of the control unit, promote the first push rod 91 and the second push rod 92 respectively, change and initiatively fix cone pulley 31 and active movement cone pulley 32, and the gap between driven fixing cone pulley 41 and driven movable cone pulley 42, and then change the theoretical running radius of tire of connecting band 5, steering gear ratio is made to increase along with the increase of the speed of a motor vehicle, in this process, the rate of change of steering gear ratio also increases,
When vehicle drives at moderate speed, light in order to ensure the manipulation of vehicle, steering gear ratio increases with the increase of the speed of a motor vehicle.Concrete is also control the first driver train 81 and the second driver train 82 by control unit, and then control break initiatively fixes that cone pulley 31 and active movement cone pulley 32 and the gap between driven fixing cone pulley 41 and driven movable cone pulley 42 realize, in this process, the rate of change of steering gear ratio starts to reduce; When vehicle high speed travels, in order to ensure the stationarity that vehicle travels and safety, along with the reduction of steering gear ratio rate of change, vehicle tends to be steady operation;
Vehicle is when running at high speed, and in order to ensure the stationarity that vehicle travels and safety, under the control of the control unit, turning rate tends to be steady.
(3) mode of motion: under this pattern, the relation of the speed of a motor vehicle and steering gear ratio is as shown in K3 curve in Fig. 5: when low vehicle speeds, light and flexible is turned in order to make, required steering gear ratio is less, the transmitting ratio that now control unit controls automatically controlled variable-speed ratio bindiny mechanism increases with the increase of the speed of a motor vehicle, and in this process, the rate of change of steering gear ratio is little; When vehicle drives at moderate speed, in order to ensure the portability of vehicle performance, under the control of the control unit, steering gear ratio increases with the increase of the speed of a motor vehicle, and in this process, the rate of change of steering gear ratio also increases; When vehicle high speed travels, in order to ensure the safety that vehicle travels and stationarity, steering gear ratio continues to increase with the increase of the speed of a motor vehicle, the operation and vehicle tends to be steady; When the vehicle runs at a high speed, in order to ensure the safety that vehicle travels, steering gear ratio tends to be steady.
In addition, from the viewpoint of the simple of structure and cost, the control unit in the present embodiment and in embodiment one all directly adopts vehicle ECU.
Claims (8)
1. an automatically controlled variable ratio steering bindiny mechanism, comprise the power input shaft (1) that carrying turns to rotary power under the steering angle of intention, the power take-off shaft (2) of outputting rotary power, described power input shaft (1) transmits power with power take-off shaft (2) by the transmission device both being connected, it is characterized in that: described transmission device comprises the adjustable driving wheel (3) in wheel footpath, is connected with power input shaft (1) synchronous axial system; The flower wheel (4) that wheel footpath is adjustable, is connected with power take-off shaft (2) synchronous axial system, and is connected with driving wheel (3) by connecting band (5); Wheel footpath adjustment driver train, adjusts to make the transmission of power between connecting band (5) guarantee driving wheel (3) and flower wheel (4) to the wheel footpath of driving wheel (3) and flower wheel (4) under the control of the control unit; Also comprise transmission device when losing efficacy, the rotary power turned under the steering angle of intention be directly passed to the inefficacy rotational coupling mechanism of power take-off shaft, described inefficacy rotational coupling mechanism comprises carrying and turns to rotary power under the steering angle of intention and the transfer power transmission mechanism this rotary power being passed to respectively power input shaft (1) and power take-off shaft (2) and the fault power-transfer clutch (6) being cut off by the power transmission between transfer power transmission mechanism with power take-off shaft (2) under the control of the control unit or be connected.
2. automatically controlled variable ratio steering bindiny mechanism according to claim 1, it is characterized in that: described transfer power transmission mechanism comprises that synchronous axial system is connected in input gear (71) on power take-off shaft (2), synchronous axial system is connected in power input shaft (1) engages the output gear (72) be connected with input gear (71), described fault power-transfer clutch (6) connects on the power take-off shaft (2) that is arranged between input gear (71) and flower wheel (4).
3. automatically controlled variable ratio steering bindiny mechanism according to claim 1 and 2, it is characterized in that: described driving wheel (3) comprise coaxially be connected with power input shaft (1) initiatively fix cone pulley (31), with initiatively fix that cone pulley (31) is oppositely arranged, can at the upper active movement cone pulley (32) that slide of power input shaft (1) under the driving of driver train; Described flower wheel (4) comprises the driven fixing cone pulley (41) be coaxially connected with power take-off shaft (2), driven movable cone pulley (42) that be oppositely arranged with driven fixing cone pulley (41), that above can slide at power take-off shaft (2) under the driving of driver train, described cone pulley (31) of initiatively fixing forms driving wheel (3) to the support of connecting band (5) with the conical suface of active movement cone pulley (32), and described driven fixing cone pulley (41) forms flower wheel (4) to the support of connecting band (5) with the conical suface of driven movable cone pulley (42).
4. automatically controlled variable ratio steering bindiny mechanism according to claim 3, it is characterized in that: described wheel footpath adjustment driver train comprises driving active movement cone pulley (32) under the control of the control unit along power input shaft (1) towards or away from the first driver train (81) initiatively fixing cone pulley (31) movement, and drive driven movable cone pulley (42) along second driver train (82) of power take-off shaft (2) towards or away from the movement of driven fixing cone pulley (41) under the control of the control unit, the power that described the first driver train (81) exports passes to active movement cone pulley (32) by the first push rod (91), the power that second driver train (82) exports passes to driven movable cone pulley (42) by the second push rod (92).
5. automatically controlled variable ratio steering bindiny mechanism according to claim 4, it is characterized in that: be fixed with the first thrust baring (101) between described first push rod (91) and active movement cone pulley (32), between the second push rod (92) and driven movable cone pulley (42), be fixed with the second thrust baring (102).
6. a wheel steering system, comprise the bearing circle (11) for driver's operation, described bearing circle (11) connects the power input shaft (1) turning to the rotation outputting power under the steering angle of intention for accepting bearing circle (11) by steering inner articulated shaft (12), power input shaft (1) connects the power take-off shaft (2) being used for outputting rotary power by automatically controlled variable ratio steering bindiny mechanism, described power take-off shaft (2) and Vehicular turn actuating unit turn to and are connected, it is characterized in that: described automatically controlled variable ratio steering bindiny mechanism has the mechanism as described in any one of claim 1 to 5.
7. wheel steering system according to claim 6, is characterized in that: also comprise the testing agency of losing efficacy for detecting automatically controlled variable-speed ratio bindiny mechanism, it sends the disablement signal detected to control unit; For the alarm mechanism reminding the automatically controlled variable-speed ratio bindiny mechanism of chaufeur to lose efficacy, the alerting signal that its reception control unit sends, sends sound and light alarm.
8. wheel steering system according to claim 7, it is characterized in that: described testing agency comprises: be located at the rotary angle transmitter (14) on bearing circle (11), it detects the steering angle of bearing circle (11), and the steering angle detected is passed to coupled control unit; Be located at the angle accumulation sensor (15) in deflector (13), it is for detecting the steering angle of deflector (13), and by each steering angle accumulation superposition, the result after superposition passes to coupled control unit; And the motor position sensor (16) be located on wheel footpath adjustment driver train, for detecting the location information of the first driver train (61) and the second driver train (62), and send the information of detection to coupled control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310094627.3A CN103171611B (en) | 2013-03-25 | 2013-03-25 | Automatically controlled variable ratio steering bindiny mechanism, there is the wheel steering system of this bindiny mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310094627.3A CN103171611B (en) | 2013-03-25 | 2013-03-25 | Automatically controlled variable ratio steering bindiny mechanism, there is the wheel steering system of this bindiny mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN103171611A CN103171611A (en) | 2013-06-26 |
| CN103171611B true CN103171611B (en) | 2016-03-02 |
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| CN201310094627.3A Expired - Fee Related CN103171611B (en) | 2013-03-25 | 2013-03-25 | Automatically controlled variable ratio steering bindiny mechanism, there is the wheel steering system of this bindiny mechanism |
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| CN103909965A (en) * | 2014-04-15 | 2014-07-09 | 王世才 | Transmission mechanism with variable vehicle steering transmission ratio and vehicle with transmission mechanism |
| CN107985389B (en) * | 2016-10-27 | 2020-05-22 | 长城汽车股份有限公司 | Pulley, variable transmission and steering system |
| CN108100023B (en) * | 2017-12-01 | 2020-11-20 | 上汽通用汽车有限公司 | Steering column and steering column assembly |
| CN110027618A (en) * | 2019-04-17 | 2019-07-19 | 傅江标 | A kind of vehicle variable speed steering mechanism |
| FR3107247B1 (en) * | 2020-02-13 | 2022-05-06 | Renault Sas | Motion transformation device for steering system. |
| CN113548108B (en) * | 2020-04-23 | 2023-02-14 | 华为技术有限公司 | Vehicle steering device and vehicle |
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|---|---|---|---|---|
| CN1629027A (en) * | 2003-12-17 | 2005-06-22 | 现代自动车株式会社 | Variable steering gear ratio apparatus and method using the same |
| EP1795429A1 (en) * | 2005-11-29 | 2007-06-13 | Nissan Motor Company Limited | Vehicle steering |
| CN101407224A (en) * | 2007-10-12 | 2009-04-15 | 株式会社日立制作所 | Device for controlling steering and steering input device |
| CN102042906A (en) * | 2009-10-15 | 2011-05-04 | 株式会社万都 | Method and system for detecting decelerator trouble |
| CN202349132U (en) * | 2011-09-30 | 2012-07-25 | 长城汽车股份有限公司 | Belt transmission mechanism with adjustable wheel diameter |
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2013
- 2013-03-25 CN CN201310094627.3A patent/CN103171611B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1629027A (en) * | 2003-12-17 | 2005-06-22 | 现代自动车株式会社 | Variable steering gear ratio apparatus and method using the same |
| EP1795429A1 (en) * | 2005-11-29 | 2007-06-13 | Nissan Motor Company Limited | Vehicle steering |
| CN101407224A (en) * | 2007-10-12 | 2009-04-15 | 株式会社日立制作所 | Device for controlling steering and steering input device |
| CN102042906A (en) * | 2009-10-15 | 2011-05-04 | 株式会社万都 | Method and system for detecting decelerator trouble |
| CN202349132U (en) * | 2011-09-30 | 2012-07-25 | 长城汽车股份有限公司 | Belt transmission mechanism with adjustable wheel diameter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103171611A (en) | 2013-06-26 |
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