CN103171611A - Electronic control steering connecting mechanism with variable gear ratio and vehicle steering system with same - Google Patents
Electronic control steering connecting mechanism with variable gear ratio and vehicle steering system with same Download PDFInfo
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- CN103171611A CN103171611A CN2013100946273A CN201310094627A CN103171611A CN 103171611 A CN103171611 A CN 103171611A CN 2013100946273 A CN2013100946273 A CN 2013100946273A CN 201310094627 A CN201310094627 A CN 201310094627A CN 103171611 A CN103171611 A CN 103171611A
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Abstract
The invention provides an electronic control steering connecting mechanism with a variable gear ratio. The connecting mechanism comprises a power input shaft used for bearing steering angle lower rotating power of steering intention and a power output shaft used for outputting the rotating power, a transmission mechanism is connected with the power input shaft and the power output shaft, and power is transmitted through the transmission mechanism. The transmission mechanism is characterized by comprising a driving wheel with adjustable wheel diameter, a driven wheel with adjustable wheel diameter and a wheel diameter adjusting driving mechanism, wherein the driving wheel is connected with the power input shaft in a synchronous rotating mode, the driven wheel is connected with the power output shaft in the synchronous rotating mode and connected with the driving wheel through a connecting belt, the wheel diameter adjusting driving mechanism is used for adjusting the wheel diameters of the driving wheel and the driven wheel under the control of a control unit so that powerful transmission of the connecting belt to the driving wheel and the driven wheel can be guaranteed. Meanwhile, the invention further provides a vehicle steering system with the electronic control steering connecting mechanism. The electronic control steering connecting mechanism and the vehicle steering system have the advantages of being simple in structure, low in cost, easy to achieve, and capable of ensuring safety of a vehicle in the process of driving due to arrangement of a fault detecting processing system.
Description
Technical field
The present invention relates to a kind of bindiny mechanism that turns to, relate in particular to a kind of automatically controlled variable ratio steering bindiny mechanisms, the invention still further relates to simultaneously a kind of wheel steering system with this automatically controlled variable ratio steering bindiny mechanism.
Background technology
Along with vehicle gets their way into people's lives more and more, the customer improves constantly the requirement of the safety of vehicle and the traveling comfort controlled, the needs that day by day increase in order to satisfy the customer, each car production producer has dropped into a large amount of manpowers and financial resources are researched and developed safety performance and the handling of vehicle, and a large amount of vehicle safety and control the up-to-date technology of invention up to now also has been born.Wherein, steering swivel system as one of system of core the most in handling, is also one of key factor of vehicle safety simultaneously, therefore, the research and development of steering swivel system is become the system research and development that each car production producer payes attention to the most.what this wherein just comprised the research and development of BMW manufacturer realizes the steering swivel system of deflection angle stack with two groups of planet rows, and Audi, Toyota, what the producers such as daily output adopted realizes with harmonic gear formula speed reduction gearing the steering swivel system that deflection angle superposes, two kinds of above-mentioned steering swivel systems are all to control turning to of vehicle by the stack that realizes deflection angle, namely when vehicle is in low speed driving chaufeur steering wheel rotation vehicle is turned to, bearing circle drives deflector by middle steering gear and drives Vehicular turn, effect due to steering swivel system, it can produce a deflection angle identical with the bearing circle hand of rotation, the actual anglec of rotation of exporting to deflector is the superposition angle with the anglec of rotation and the middle steering gear anglec of rotation of bearing circle, therefore, when low vehicle speeds, chaufeur only need rotate low-angle of bearing circle can realize turning to the vehicle wide-angle, reduce the demand of steering effort, facilitate the operation of chaufeur.
when being in, vehicle runs at high speed, when chaufeur rotation bearing circle carries out steering operation to vehicle, bearing circle turns to drive mechanism to drive deflector by the centre and drives Vehicular turn, at this moment, effect due to middle steering gear, can produce a deflection angle opposite with the bearing circle hand of rotation, the actual anglec of rotation of exporting to deflector is with the angle of the rotation of bearing circle and the superposition angle of the middle steering gear anglec of rotation equally, therefore, vehicle is when running at high speed, chaufeur need to rotate one and turn to the deflection angle of intention greater than it, the guarantee vehicle turns to according to the intention of chaufeur.Can guarantee like this safety of vehicle when running at high speed.
Although the safety that above-mentioned steering swivel system can either be met customer need and ease for operation, due to the steering swivel system complex structure that adopts double planetary gear unit, processing difficulties, technology acuracy requires high, and cost is also higher, and the noise during operation is large; And the steering swivel system that adopts the harmonic gear structure to carft of construction require highly, and have equally the high problem of cost, 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 mechanisms, can realize the convergent-divergent to the input redirect angle, when being applied on vehicle, send again deflector to after can zooming in or out accordingly the corner of steering wheel for vehicle according to the operation conditions of vehicle, guarantee operating characteristic and the safety performance of vehicle, simultaneously simple in structure, cost is low, easily realizes.
For achieving the above object, automatically controlled variable ratio steering of the present invention bindiny mechanism comprises that carrying turns to the power input shaft of rotary power under the steering angle of intention, the power take-off shaft of outputting rotary power, by being connected transmission device transmission power both, described transmission device comprises described power input shaft with power take-off shaft:
Wheel footpath adjustable driving wheel is synchronizeed with power input shaft and is rotationally connected;
Wheel footpath adjustable flower wheel is synchronizeed with power take-off shaft and is rotationally connected, and is connected with driving wheel by connecting band;
Driver train is adjusted in the wheel footpath, adjusts so that connecting band guarantees the transmission of power between driving wheel and flower wheel in the wheel footpath to driving wheel and flower wheel under the control of control unit.
As limitation of the invention: also comprise when transmission device lost efficacy, will turn to rotary power under the steering angle of intention to 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 comprise carrying turn to rotary power under the steering angle of intention, and with this rotary power pass to respectively power input shaft and power take-off shaft the transfer power transmission mechanism and under the control of control unit with transfer transport sector and power transmission between the power take-off shaft fault power-transfer clutch that cuts off or be connected.
As further limiting of the present invention: described sub-power transport sector comprises that synchronous rotation is connected in the input gear on power take-off shaft, the synchronous output gear that is connected with the input gear engagement that is connected on power input shaft that rotates, and described fault power-transfer clutch connects on the power take-off shaft that is arranged between input gear and flower wheel.
As to another kind of restriction the of the present invention: described driving wheel comprises and the coaxial initiatively fixing cone pulley that is connected of power input shaft, with fixing that be oppositely arranged, the active movement cone pulley that can slide on power input shaft under the driving of driver train of cone pulley initiatively; Described flower wheel comprises and the coaxial driven fixedly cone pulley that is connected of power take-off shaft, the driven movable cone pulley that is oppositely arranged with driven fixedly cone pulley, can slide on power take-off shaft under the driving of driver train, the described initiatively fixedly support of the conical suface of cone pulley and active movement cone pulley formation driving wheel to connecting band, the conical suface of described driven fixedly cone pulley and driven movable cone pulley consists of flower wheel to the support of connecting band.
Adjust the restriction of driver train for the wheel footpath: described take turns the footpath adjust drive under the control that driver train is included in control unit the active movement cone pulley along power input shaft towards or away from fixing the first driver train of moving of cone pulley initiatively, and drive under the control of control unit driven movable cone pulley along power take-off shaft towards or the second driver train of moving away from driven fixedly cone pulley, the power of described the first driver train output passes to the active movement cone pulley by the first push rod, and the power of the second driver train output passes to driven movable cone pulley by the second push rod.
As the further restriction to wheel footpath adjusting mechanism: be fixed with the first thrust baring between described the 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.
The present invention also provides a kind of vehicle electrically controlling variable ratio steering systems, 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 that is used for accepting the wheel steering intention by steering inner articulated shaft, power input shaft connects by automatically controlled variable ratio steering bindiny mechanisms the power take-off shaft that is used for outputting rotary power, 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 detection of automatically controlled variable-speed ratio bindiny mechanism, it sends the disablement signal that detects to control unit;
Be used for the alarm mechanism that the automatically controlled variable-speed ratio of reminding driver bindiny mechanism lost efficacy, the alerting signal of sending of its reception control unit, send sound and light alarm.
As the restriction 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 that detects is passed to coupled control unit;
Be located at the angle accumulation sensor in deflector, it is for detection of the steering angle of deflector, and with each steering angle accumulation stack, the result after stack passes to coupled control unit;
And be located at the motor position sensor of taking turns on footpath adjustment driver train, for detection of the location information of the first driver train and the second driver train, and send the information that detects to coupled control unit.
Adopt as above technical scheme, can reach following technique effect:
between power input shaft of the present invention and power take-off shaft by wheel footpath capable of regulating just the variable flower wheel in driving wheel driven wheel footpath be connected, thereby will turn to turning to of input shaft input to be intended to pass to turn to output shaft band motor vehicle to turn to, due to driving wheel and flower wheel the wheel footpath all can adjust under the control of control unit, therefore can the motivation of adjustment input end to the transmitting ratio of clutch end, be different driving wheel wheel footpath and to take turns the ratio that transmits in the footpath also different for different flower wheels, can exchange the transmitting ratio of whole vehicle steering swivel system by this operation, can select different transmitting ratios under different running state of the vehicle, realized 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 also is provided with the inefficacy rotational coupling mechanism, when the automatically controlled variable ratio steering bindiny mechanism in the present invention lost efficacy, the inefficacy rotation connection structure directly is transferred to power take-off shaft with the rotary power of chaufeur input under the effect of control unit, and then can control the Vehicular turn actuating unit and drive vehicle and turn to, guarantee that steering swivel system remains valid, and then can avoid the generation of contingency, guarantee the personal safety of passenger in car;
In addition, vehicle electrically controlling variable ratio steering provided by the invention system also is provided with and detects the testing agency that this automatically controlled variable-speed ratio bindiny mechanism lost efficacy, and this bindiny mechanism sends the warning device of sound and light alarm when losing efficacy, therefore, when this bindiny mechanism lost efficacy, testing agency can in time detect fail message, can send sound and light alarm by alarm mechanism, this transmission device of reminding driver lost efficacy, chaufeur can be avoided by adjusting operation the generation of contingency, guarantees occupant's personal safety.
Description of drawings
Below in conjunction with the drawings and the specific embodiments, the present invention is done further to describe in detail:
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 to the system principle diagram of 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, fixing cone pulley initiatively; 32, active movement cone pulley; 4, flower wheel; 41, driven fixedly 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.
The specific embodiment
Embodiment one
The present embodiment relates to a kind of automatically controlled variable ratio steering bindiny mechanism 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 that is connected both.Wherein, described transmission device comprises:
The adjustable driving wheel 3 in wheel footpath, synchronize with power input shaft 1 and be rotationally connected, its structure comprises as shown in Figure 1: fixing cone pulley 31 initiatively, described initiatively fixedly cone pulley 31 be connected with power input shaft 1 is coaxial, can be with synchronize rotation under the drive of power input shaft 31 with power input shaft 1; Active movement cone pulley 32, with initiatively fixedly cone pulley 31 be oppositely arranged, namely initiatively fixedly the conical surface of the conical surface of cone pulley 31 and active movement cone pulley 32 be oppositely arranged, simultaneously, active movement cone pulley 32 can slide on power input shaft 1 under the driving of driver train, with towards or away from initiatively fixedly cone pulley 31 move.
The adjustable flower wheel 4 in wheel footpath, synchronize with power take-off shaft 2 and be rotationally connected, and be connected with driving wheel 3 by connecting band 5, its structure as shown in Figure 1, comprise: driven fixedly cone pulley 41, be connected with power take-off shaft 2 is coaxial, can synchronize with power take-off shaft 2 rotation, output power to follow-up actuating unit; Driven movable cone pulley 42, be oppositely arranged with driven fixedly cone pulley 41, be that the conical surface of driven fixedly cone pulley 41 and the conical surface of driven movable cone pulley 42 are oppositely arranged, simultaneously, driven movable cone pulley 42 can slide on power take-off shaft 2 under the driving of driver train, with towards or move away from driven fixedly cone pulley 41.
For the rotary power that makes driving wheel 3 accept passes to flower wheel 4, and then the rotary power that makes power input shaft 1 passes to power take-off shaft 2, carry out transmission of power by connecting band 5 between described driving wheel 3 and flower wheel 4, wherein in order to guarantee the transmission effect of 5 pairs of power of connecting band, the initiatively fixedly support of 3 pairs of connecting bands 5 of the conical suface of cone pulley 31 and active movement cone pulley 32 formation driving wheel in the present embodiment, the conical suface of driven fixedly cone pulley 41 and driven movable cone pulley 42 consists of the support of 4 pairs of connecting bands 5 of flower wheel.Just be based on the support concept of above-mentioned driving wheel 3 and 4 pairs of connecting bands 5 of flower wheel, and initiatively fixedly between cone pulley 31 and active movement cone pulley 32, the position relationship between driven fixedly cone pulley 41 and driven movable cone pulley 42, can adjust the power output ratio between driving wheel 3 and flower wheel 4.Simultaneously, from structure and the intensity aspect consideration of the present embodiment, connecting band 5 adopts steel bands.
The present embodiment also comprises wheel footpath adjustment driver train, it can be under the control of control unit be adjusted the wheel footpath of driving wheel 3 and flower wheel 4, so that connecting band 5 is fitted with driving wheel 3 and flower wheel 4 all the time, guarantee 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 control unit so that active movement cone pulley 32 along power input shaft 1 towards or away from initiatively fixedly cone pulley 31 move; The second driver train 82, it can realize the driving to driven movable cone pulley 42 under the control of control unit so that driven movable cone pulley 42 along power take-off shaft 2 towards or move away from driven fixedly cone pulley 41.for the structure that makes the present embodiment simpler, described the first driver train 81 and the second driver train 82 adopt coaxial motor, and motor adopts ball-screw-transmission technology export power, drive respectively active movement cone pulley 32 and driven movable cone pulley 42, its concrete structure is shown in Figure 2: the rotor 81-1 of described the first driver train 81 is provided with negative thread, be located in rotor 81-1 with externally threaded the first push rod 91 that is 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 rotor 81-1 rotation in the running, drive the first push rod 91 rotations by circulating ball 81-2, and then make the first push rod 91 sway.The structure of the mechanism of the second driver train 82 and above-mentioned the first driver train 81 is identical.
And be installed with the first thrust baring 101 on active movement cone pulley 32, be installed with the second thrust baring 102, the first push rods 91 on driven movable cone pulley 42 to move along power input shaft 1 by the first thrust baring 101 driving active movement cone pulleys 32; The second push rod 92 drives driven movable cone pulley 42 by the second thrust baring 102 and moves along power take-off shaft.
In order further to improve the present embodiment, also comprise the inefficacy rotational coupling mechanism, when transmission device lost efficacy, described inefficacy rotational coupling mechanism can will turn to the rotary power under the steering angle of intention to be directly passed to power take-off shaft.Its structure comprises as shown in Figure 1: the transfer power transmission mechanism, it can carry rotary power under the steering angle that turns to intention, and this rotary power is passed to respectively power input shaft 1 and power take-off shaft 2.Sub-power transport sector in the present embodiment adopts reversing gear 7, it comprises input gear 71 and output gear 72, the synchronous rotation of wherein said input gear 71 is connected on power take-off shaft 2, and synchronous rotation of output gear 72 is connected on power input shaft 1, and is connected with input gear 71 engagements.
Described inefficacy rotational coupling mechanism also comprises fault power-transfer clutch 6, and it can cut off the power transmission between sub-power transport sector and power take-off shaft 2 or be connected under control of control unit.Described fault power-transfer clutch 6 connects on the power take-off shaft 2 that is arranged between input gear 71 and flower wheel 3.
Embodiment two
The present embodiment relates to a kind of vehicle electrically controlling variable ratio steering systems, its structure is as shown in Figure 3: comprise the bearing circle 11 for driver's operation, described bearing circle 11 is by steering inner articulated shaft 12 interlock power input shafts 1, power input shaft 1 connects by the automatically controlled variable ratio steering bindiny mechanism described in embodiment one power take-off shaft 2 that is used for outputting rotary power, and described power take-off shaft 2 turns to bogie of car 13 and is connected.Because the automatically controlled variable-speed ratio bindiny mechanism that adopts in the present embodiment is structure in embodiment one, therefore, again repeat no more the structure of this bindiny mechanism.
In addition, detection alarm system when the present embodiment lost efficacy in order also to be provided with bindiny mechanism, its structure comprises as shown in Figure 4: the testing agency of inefficacy, whether bindiny mechanism lost efficacy for detection of automatically controlled variable-speed ratio, and the signal that detects 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, whether the two cooperation normally transmits power for detection of the connecting band between driving wheel 3 and flower wheel 4, in case the situation of connecting band fracture occurs, whether control unit can rupture according to the connecting band that the signal that rotary angle transmitter 14 and angle accumulation sensor 15 detects is judged between driving wheel 3 and flower wheel 4, the concrete detection is: when chaufeur rotation 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 driving deflector 13 rotation when chaufeur rotation bearing circle 1, it can sense the angle of the rotation of deflector 13, and superposeing to the anglec of rotation each sensing, the information that simultaneously stack is obtained sends the control unit that is connected with its signal output part to, control unit not only will receive rotary angle transmitter 14 and the angle accumulation sensor 15 common information that transmit simultaneously, simultaneously rotary angle transmitter of every reception 14 transmit angle information the time, the angle information that angle accumulation sensor 15 transmits must the relatively last angle information that transmits have cumulative could judge when the cone pulley steel belt driving mechanism is worked normal, in case the situation of fracture appears in connecting band 5, control unit receives the information that rotary angle transmitter 14 detects, the but not accumulation of information that the information that angle accumulation sensor 15 detects is relatively last, at this moment, control unit is sentenced connecting band 5 fractures.And motor position sensor 16 is for detection of the running state of motor, and the information that detects is passed to control unit, in case when control unit was found this abnormal signal, the judgement motor broke down.
described detection alarm system also comprises the alarm mechanism that lost efficacy for the automatically controlled variable-speed ratio of reminding driver bindiny mechanism, the present embodiment adopts combined aural and visual alarm 17, in case motor breaks down, perhaps connecting band fracture, described combined aural and visual alarm 17 will reception control unit the alerting signal of sending, send sound and light alarm, reminding driver electromagnetism variable-speed ratio bindiny mechanism et out of order, control unit can send signal to fault power-transfer clutch 6 simultaneously, make its closure, directly the power of steering inner articulated shaft 12 is exported to power take-off shaft 2, make the steering swivel system of vehicle remain valid, guarantee the personal safety of passenger in car.
The vehicle of the present embodiment can be divided into the steering swivel system of vehicle three kinds of patterns when operation:
(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 respectively the first push rod 71 and the second push rod 72 is adjusted into initial position, the transmitting ratio that is bearing circle 1 and deflector 14 miniature gears input ends is 1:1, along with the variation 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 is adjusted control policy automatically according to the pattern of selecting, control unit will gather vehicle speed signal, the angular signal of bearing circle 11, and the 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 the 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 adjusting is as follows: during low vehicle speeds, need less steering gear ratio could make the operation of chaufeur more easy, turn to more flexible, this moment, the first driver train 81 and the second driver train 82 were under the control of control unit, promote respectively the first push rod 91 and the second push rod 92, change initiatively fixedly cone pulley 31 and active movement cone pulley 32, and the gap between driven fixedly cone pulley 41 and driven movable cone pulley 42, and then the theoretical running radius of tire of change connecting band 5, make steering gear ratio increase along with the increase of the speed of a motor vehicle, turn to the rate of change of transmitting ratio also to increase in this process,
When vehicle drove at moderate speed, light for the manipulation that guarantees vehicle, steering gear ratio increased with the increase of the speed of a motor vehicle.Also specifically to control the first driver train 81 and the second driver train 82 by control unit, and then control break initiatively fixedly the gap between cone pulley 31 and active movement cone pulley 32 and driven fixedly cone pulley 41 and driven movable cone pulley 42 realize, turn to the rate of change of transmitting ratio to begin to reduce in this process; When the vehicle high speed is travelled, for the stationarity that guarantees Vehicle Driving Cycle is safety, along with reducing of steering gear ratio rate of change, the vehicle operation that tends to be steady;
Vehicle is when running at high speed, and for the stationarity and the safety that guarantee Vehicle Driving Cycle, under the control of 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, turn to light and flexible in order to make, needed steering gear ratio is less, the transmitting ratio of the automatically controlled variable-speed ratio of control unit control this moment bindiny mechanism increases with the increase of the speed of a motor vehicle, turns to the rate of change of transmitting ratio little in this process; When vehicle drove at moderate speed, in order to guarantee the portability of vehicle performance, under the control of control unit, steering gear ratio increased with the increase of the speed of a motor vehicle, turns to the rate of change of transmitting ratio also to increase in this process; When the vehicle high speed was travelled, for safety and the stationarity that guarantees Vehicle Driving Cycle, steering gear ratio continued to increase with the increase of the speed of a motor vehicle, and the vehicle operation that tends to be steady; When high vehicle speeds, in order to guarantee the safety of Vehicle Driving Cycle, steering gear ratio tends to be steady.
In addition, consider from the aspect of the simple and cost of structure, in the present embodiment and the control unit in embodiment one all directly adopt vehicle ECU.
Claims (10)
1. automatically controlled variable ratio steering bindiny mechanism, comprise the power input shaft (1) that carries rotary power under the steering angle that turns to intention, the power take-off shaft of outputting rotary power (2), described power input shaft (1) by being connected transmission device transmission power both, is characterized in that described transmission device comprises with power take-off shaft (2):
Wheel footpath adjustable driving wheel (3) is synchronizeed with power input shaft (1) and is rotationally connected;
Wheel footpath adjustable flower wheel (4) is synchronizeed with power take-off shaft (2) and is rotationally connected, and is connected with driving wheel (3) by connecting band (5);
Driver train is adjusted in the wheel footpath, adjusts so that the transmission of power between connecting band (5) assurance driving wheel (3) and flower wheel (4) in the wheel footpath to driving wheel (3) and flower wheel (4) under the control of control unit.
2. automatically controlled variable ratio steering according to claim 1 bindiny mechanism is characterized in that: also comprise when transmission device lost efficacy, will turn to rotary power under the steering angle of intention to be directly passed to the inefficacy rotational coupling mechanism of power take-off shaft.
3. automatically controlled variable ratio steering according to claim 2 bindiny mechanism is characterized in that: described inefficacy rotational coupling mechanism comprise carrying turn to rotary power under the steering angle of intention, and with this rotary power pass to respectively power input shaft (1) and power take-off shaft (2) the transfer power transmission mechanism and under the control of control unit with transfer power transmission cut-out between transport sector and power take-off shaft (2) or the fault power-transfer clutch (6) that is connected.
4. automatically controlled variable ratio steering according to claim 3 bindiny mechanism, it is characterized in that: described sub-power transport sector comprises that synchronous rotation is connected in the input gear (71) on power take-off shaft (2), the synchronous output gear (72) that is connected with input gear (71) engagement that is connected on power input shaft (1) that rotates, and 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).
5. the described automatically controlled variable ratio steering of according to claim 1 to 4 any one bindiny mechanism, it is characterized in that: described driving wheel (3) comprises and the coaxial initiatively fixing cone pulley (31) that is connected of power input shaft (1), with initiatively fixedly cone pulley (31) be oppositely arranged, can be at the upper active movement cone pulley (32) that slides of power input shaft (1) under the driving of driver train; Described flower wheel (4) comprises and the coaxial driven fixedly cone pulley (41) that is connected of power take-off shaft (2), the driven movable cone pulley (42) that is oppositely arranged with driven fixed cone (41) wheel, can slide on power take-off shaft (2) under the driving of driver train, the described initiatively fixedly support of the conical suface of cone pulley (31) and active movement cone pulley (32) formation driving wheel (3) to connecting band (5), described driven fixedly cone pulley (41) consists of flower wheel (4) to the support of connecting band (5) with the conical suface of driven movable cone pulley (42).
6. automatically controlled variable ratio steering according to claim 5 bindiny mechanism, it is characterized in that: described take turns the footpath adjust drive under the control that driver train is included in control unit active movement cone pulley (32) along power input shaft (1) towards or away from fixing first driver train (81) of cone pulley (31) movement initiatively, and drive under the control of control unit driven movable cone pulley (42) along power take-off shaft (2) towards or away from mobile the second driver train (82) of driven fixedly cone pulley (41), the power of described the first driver train (81) output passes to active movement cone pulley (32) by the first push rod (91), the power of the second driver train (82) output passes to driven movable cone pulley (42) by the second push rod (92).
7. automatically controlled variable ratio steering according to claim 6 bindiny mechanism, it is characterized in that: be fixed with the first thrust baring (101) between described the first push rod (91) and active movement cone pulley (32), be fixed with the second thrust baring (102) between the second push rod (92) and driven movable cone pulley (42).
8. wheel steering system, comprise the bearing circle (11) for driver's operation, described bearing circle (11) connect to be used for accepting the power input shaft (1) of the rotation outputting power under the steering angle that bearing circle (11) turns to intention by steering inner articulated shaft (12), power input shaft (1) connects by automatically controlled variable ratio steering bindiny mechanisms the power take-off shaft (2) that is used for outputting rotary power, described power take-off shaft (2) turns to the Vehicular turn actuating unit and is connected, it is characterized in that: described automatically controlled variable ratio steering connection structure has structure as described in claim 1 to 7 any one.
9. wheel steering system according to claim 8 is characterized in that: also comprise the testing agency of losing efficacy for detection of automatically controlled variable-speed ratio bindiny mechanism, it sends the disablement signal that detects to control unit;
Be used for the alarm mechanism that the automatically controlled variable-speed ratio of reminding driver bindiny mechanism lost efficacy, the alerting signal of sending of its reception control unit, send sound and light alarm.
10. wheel steering system according to claim 9, 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 that detects is passed to coupled control unit;
Be located at the angle accumulation sensor (15) in deflector (13), it is for detection of the steering angle of deflector (13), and with each steering angle accumulation stack, the result after stack passes to coupled control unit;
And be located at the motor position sensor (16) of taking turns on footpath adjustment driver train, for detection of the location information of the first driver train (61) with the second driver train (62), and send the information that detects to coupled control unit.
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| 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 |
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| CN103171611A true CN103171611A (en) | 2013-06-26 |
| CN103171611B 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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN107985389A (en) * | 2016-10-27 | 2018-05-04 | 长城汽车股份有限公司 | Belt pulley, the transmission device of transmission ratio-variable and steering |
| CN108100023A (en) * | 2017-12-01 | 2018-06-01 | 上汽通用汽车有限公司 | A kind of steering column and column assy |
| CN110027618A (en) * | 2019-04-17 | 2019-07-19 | 傅江标 | A kind of vehicle variable speed steering mechanism |
| FR3107247A1 (en) * | 2020-02-13 | 2021-08-20 | Renault S.A.S. | Movement transformation device for steering system. |
| CN113548108A (en) * | 2020-04-23 | 2021-10-26 | 华为技术有限公司 | Vehicle steering device and vehicle |
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| 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 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909965A (en) * | 2014-04-15 | 2014-07-09 | 王世才 | Transmission mechanism with variable vehicle steering transmission ratio and vehicle with transmission mechanism |
| CN107985389A (en) * | 2016-10-27 | 2018-05-04 | 长城汽车股份有限公司 | Belt pulley, the transmission device of transmission ratio-variable and steering |
| CN107985389B (en) * | 2016-10-27 | 2020-05-22 | 长城汽车股份有限公司 | Pulley, variable transmission and steering system |
| CN108100023A (en) * | 2017-12-01 | 2018-06-01 | 上汽通用汽车有限公司 | A kind of steering column and column assy |
| CN110027618A (en) * | 2019-04-17 | 2019-07-19 | 傅江标 | A kind of vehicle variable speed steering mechanism |
| FR3107247A1 (en) * | 2020-02-13 | 2021-08-20 | Renault S.A.S. | Movement transformation device for steering system. |
| CN113548108A (en) * | 2020-04-23 | 2021-10-26 | 华为技术有限公司 | Vehicle steering device and vehicle |
| 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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