WO2015149279A1 - 汽车转向系统 - Google Patents

汽车转向系统 Download PDF

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Publication number
WO2015149279A1
WO2015149279A1 PCT/CN2014/074540 CN2014074540W WO2015149279A1 WO 2015149279 A1 WO2015149279 A1 WO 2015149279A1 CN 2014074540 W CN2014074540 W CN 2014074540W WO 2015149279 A1 WO2015149279 A1 WO 2015149279A1
Authority
WO
WIPO (PCT)
Prior art keywords
timing belt
steering
wire rope
turntable
steering system
Prior art date
Application number
PCT/CN2014/074540
Other languages
English (en)
French (fr)
Inventor
龚蜀刚
胡凌靓
赵计高
何进军
吴秀蓉
Original Assignee
深圳市智轮电动车驱动技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市智轮电动车驱动技术有限公司 filed Critical 深圳市智轮电动车驱动技术有限公司
Priority to PCT/CN2014/074540 priority Critical patent/WO2015149279A1/zh
Priority to US15/300,498 priority patent/US9956986B2/en
Priority to JP2016560741A priority patent/JP6412950B2/ja
Priority to CN201480077719.3A priority patent/CN106488867B/zh
Priority to ES14887818T priority patent/ES2728902T3/es
Priority to EP14887818.4A priority patent/EP3127777B1/en
Priority to KR1020167028868A priority patent/KR102155928B1/ko
Priority to PL14887818T priority patent/PL3127777T3/pl
Publication of WO2015149279A1 publication Critical patent/WO2015149279A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D3/00—Steering gears
    • B62D3/02—Steering gears mechanical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
    • B62D5/046—Controlling the motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/02—Steering linkage; Stub axles or their mountings for pivoted bogies
    • B62D7/023—Steering turntables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/02—Steering linkage; Stub axles or their mountings for pivoted bogies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/02—Steering linkage; Stub axles or their mountings for pivoted bogies
    • B62D7/026—Steering linkage; Stub axles or their mountings for pivoted bogies characterised by comprising more than one bogie, e.g. situated in more than one plane transversal to the longitudinal centre line of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
    • B62D7/08—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in a single plane transverse to the longitudinal centre line of the vehicle

Definitions

  • the invention belongs to the field of automobiles, and in particular relates to an automobile steering system.
  • the structural feature of the conventional automobile steering system is that the front axle is provided with knuckles at both ends, and is connected by a kingpin with an inner inclination; the front axle is further provided with a steering trapezoidal mechanism.
  • the above structure is complicated and has low flexibility, and it is not suitable for installing a specific hub motor and a wheel, and is particularly unsuitable for use in an electric vehicle.
  • due to the complicated structure of the conventional automobile steering system it is also difficult to manufacture and the manufacturing cost is also very high. It can be seen that the traditional automobile steering system has seriously restricted the development of automobiles (especially electric vehicles).
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide an automobile steering system with simple structure and accurate steering, and the steering system of the automobile can also realize reverse steering.
  • the present invention is achieved by an automobile steering system for controlling steering of a left front wheel and a right front wheel of a vehicle, wherein the left front wheel is provided with a left support shaft, and the right front wheel is provided with a right
  • the support shaft includes: a steering wheel, a steering transmission for transmitting the steering angle of the steering wheel, a left turntable for adjusting the rotation angle of the left front wheel, a right turntable for adjusting the rotation angle of the right front wheel, and a steering device for controlling a rotation angle of the left turntable and the right turntable;
  • the steering wheel is connected to one end of the steering gear, the other end of the steering gear is engaged with the steering device, and the left turntable and the right turntable are respectively located at two ends of the steering device.
  • the left turntable is connected to the left support shaft, and the right turntable is connected to the right support shaft;
  • the steering device includes a left wire rope, a right wire rope, and a timing belt that is rotated by the steering transmission, and two ends of the left wire rope are respectively wound on the left turntable and the synchronous belt, and the right wire rope is two The ends are wound on the right turntable and the timing belt, respectively.
  • the steering device further includes a left timing belt lock for clamping the left wire rope to the timing belt or loosening the left wire rope from the timing belt, and for a right timing belt lock member on which the right wire rope is clamped or the right wire rope is loosened from the timing belt, and the left timing belt lock member and the right timing belt lock member are both disposed on the
  • the timing belt is provided with control means for controlling the left timing belt lock and the right timing belt lock.
  • the left timing belt lock comprises a left clamp that can clamp the left wire rope on the timing belt and a left electromagnet for controlling the clamping and loosening state of the left clamp.
  • the left electromagnet is disposed on the left clamping block;
  • the right timing belt locking member includes a right clamping block that can clamp the right wire rope on the timing belt and is used to control the right clamping block clamp a right electromagnet in a tight and loose state, the right electromagnet being disposed on the right clamping block.
  • the steering device further includes an intermediate lock member that can simultaneously control the distance between the left timing belt lock and the right timing belt lock, the intermediate lock member being disposed on the timing belt and located at the left side Between the timing belt lock and the right timing belt lock, the left timing belt lock and the right timing belt lock are both connected to the intermediate lock by an intermediate wire rope.
  • the intermediate lock includes a spool and an intermediate electromagnet, the intermediate electromagnet is disposed on the spool, and the intermediate wire is wound on the spool.
  • the steering transmission device includes an upper transmission shaft and a lower transmission shaft, an upper end of the upper transmission shaft is coupled to the steering wheel, and a lower end of the upper transmission shaft is coupled to an upper end of the lower transmission shaft, the lower The lower end of the drive shaft is mated with the timing belt.
  • the lower end of the lower transmission shaft is provided with a transmission tooth
  • the timing belt is provided with wave teeth that mesh with the transmission teeth.
  • a left motor and a right motor are further included, and the left turntable is connected to the left support shaft through the left motor, and the right turntable is connected to the right support shaft through the right motor.
  • the steering wheel is provided with control means for controlling the left motor and the right motor.
  • the steering wheel is provided with control means for global control, the control means comprising a button and a display screen.
  • the timing belt and the steering transmission device of the invention cooperate with the wire rope (the left wire rope and the right wire rope) and the winding method thereof to accurately drive the rotation of the left turntable and the right turntable, and then accurately pass the left turntable and the right turntable respectively.
  • the present invention can also achieve the effect of reversible rotation as in the conventional automobile steering system.
  • the invention has the advantages of simple structure, low manufacturing difficulty, low manufacturing cost and high accuracy, and is convenient for the installation of the automobile and the wheel thereof, and is particularly suitable for the electric vehicle.
  • FIG. 1 is a top perspective view of a steering system of a vehicle according to an embodiment of the present invention
  • FIG. 2 is a bottom perspective view of a steering system of a vehicle according to an embodiment of the present invention.
  • Figure 3 is a partial enlarged view of I in Figure 1;
  • Figure 4 is a partial enlarged view of II in Figure 1;
  • Figure 5 is a partial enlarged view of III in Figure 2;
  • Figure 6 is a partial enlarged view of IV in Figure 2.
  • an embodiment of the present invention provides an automobile steering system for controlling steering of a left front wheel and a right front wheel of a vehicle, wherein the left front wheel is provided with a left support shaft, the right front The wheel is provided with a right support shaft (not shown), including: a steering wheel 31, a steering transmission 32 for transmitting the rotation angle of the steering wheel 31, a left turntable 331 for adjusting the rotation angle of the left front wheel, a right turntable 332 for adjusting the right front wheel rotation angle and a steering device 34 for controlling the rotation angles of the left turntable 331 and the right turntable 332;
  • the steering wheel 31 is coupled to one end of the steering gear 32, the other end of the steering gear 32 is coupled to the steering device 34, and the left turntable 331 and the right turntable 332 are respectively located at the steering At both ends of the device 34, the left turntable 331 is connected to the left support shaft, and the right turntable 332 is connected to the right support shaft;
  • the steering device 34 includes a left wire rope 341, a right wire rope 342, and a timing belt 343 that is rotated by the steering gear 32.
  • the two ends of the left wire rope 341 are respectively wound on the left turntable 331 and the timing belt.
  • the two ends of the right wire rope 342 are wound on the right turntable 332 and the timing belt 343, respectively.
  • the rotation angle thereof is transmitted to the timing belt 343 through the steering transmission 32, the timing belt 343 drives the left wire rope 341 and the right wire rope 342 to be simultaneously driven, and the left wire rope 341 and the right wire rope 342 adjust the left front wheel and the right front wheel, respectively.
  • the angle of rotation is transmitted to the timing belt 343 through the steering transmission 32, the timing belt 343 drives the left wire rope 341 and the right wire rope 342 to be simultaneously driven, and the left wire rope 341 and the right wire rope 342 adjust the left front wheel and the right front wheel, respectively. The angle of rotation.
  • the timing belt 343 of the present invention cooperates with the steering transmission device 32, and skillfully passes the wire rope (the left wire rope 341 and the right wire rope 342) and the winding method thereof to accurately drive the left turntable 331 and the right turntable 332 to rotate, and then pass the left turntable.
  • the right dial 331 and the right dial 332 accurately control the steering angles of the left front wheel and the right front wheel, respectively.
  • the present invention can also achieve the effect of reversible rotation as in the conventional automobile steering system.
  • the invention has the advantages of simple structure, low manufacturing difficulty, low manufacturing cost and high accuracy, and is convenient for the installation of the automobile and its wheel (hub), and is particularly suitable for electric vehicles.
  • the steering device 34 further includes a left timing belt for clamping the left wire rope 341 to the timing belt 343 or for releasing the left wire rope 341 from the timing belt 343.
  • a lock member 344, and a right timing belt lock 345 for clamping the right wire rope 342 on the timing belt 343 or releasing the right wire rope 342 from the timing belt 343, the left timing belt
  • the lock member 344 and the right timing belt lock 345 are disposed on the timing belt 343; the steering wheel 31 is provided with control for controlling the left timing belt lock 344 and the right timing belt lock 345 Device.
  • the left timing belt lock 344 and the right timing belt lock 345 respectively fix the left wire rope 341 and the right wire rope 342 to the timing belt 343, so that the present invention can
  • the steering wheel 31 is rotated, and the transmission of the wire rope is driven by the timing belt 343 to indirectly and accurately control the steering of the wheel.
  • the driver operates the control device on the steering wheel 31 such that the left timing belt lock 344 and the right timing belt lock 345 move the left wire rope 341 and the right wire rope 342 from The timing belt 343 is loosened.
  • the wire rope is not driven by the timing belt 343, and the control device is controlled by the program so that the left front wheel and the right front wheel are respectively extended outward, and the two form 180°, that is, the left front wheel and the right side.
  • the front wheels are visible in a straight line, and the car can be driven horizontally.
  • This type of driving is especially suitable for parking, especially for parking spaces with narrow positions.
  • the left timing belt lock 344 includes the left wire rope 341.
  • a left clamping block 3441 on the timing belt 343 and a left electromagnet 3442 for controlling the clamping and releasing state of the left clamping block 3441 the left electromagnet 3442 is disposed on the left clamping block 3441;
  • the right timing belt lock 345 includes a right clamping block 3451 for clamping the right wire rope 342 on the timing belt 343 and a right electromagnet for controlling the clamping and releasing state of the right clamping block 3451.
  • the right electromagnet 3452 is disposed on the right clamping block 3451.
  • the steering device 34 further includes an intermediate lock 346 that can simultaneously control the distance between the left timing belt lock 344 and the right timing belt lock 345, and the intermediate lock member 346 is disposed on the timing belt 343. Up and between the left timing belt lock 344 and the right timing belt lock 345, the left timing belt lock 344 and the right timing belt lock 345 both pass the intermediate wire rope 347 and the middle lock Pieces 346 are connected.
  • the intermediate lock member 346 can control not only the distance between the left timing belt lock 344 and the right timing belt lock 345, but also the operation and control of the wire rope, for example, indirectly controlling the left turntable 331 and the right turntable 332.
  • the angle of rotation which plays an important role in the transition between conventional driving and lateral driving described above.
  • the intermediate lock member 346 includes a reel 3461 and an intermediate electromagnet 3462, and the intermediate electromagnet 3462 is disposed on the reel 3461, and the intermediate wire rope 347 Winding on the reel 3461.
  • the steering gear 32 includes an upper drive shaft 321 and a lower drive shaft 322.
  • the upper end of the upper drive shaft 321 is coupled to the steering wheel 31, and the lower end of the upper drive shaft 321 is
  • the upper end of the lower drive shaft 322 is coupled, and the lower end of the lower drive shaft 322 is mated with the timing belt 343.
  • the steering transmission device 32 of the present invention can also refer to the steering transmission design of the existing automobile, and only needs to be able to transmit the steering wheel rotation angle.
  • the lower end of the lower transmission shaft 322 is provided with a transmission tooth
  • the timing belt 343 is provided with wave teeth that mesh with the transmission teeth.
  • the automobile steering system provided by the embodiment of the present invention further includes a left motor and a right motor (not shown), and the left turntable 331 is connected to the left support shaft by the left motor, and the right turn A disk 332 is coupled to the right support shaft by the right motor.
  • the motor of the present invention can provide a boosting function, and the specific arrangement forms of the left motor and the right motor can be flexibly processed as needed, and thus the drawings do not show the specific arrangement thereof.
  • the steering wheel 31 is provided with control means for controlling the left motor and the right motor.
  • the left and right motors are also indirectly controlled by the control device, making the steering of the car more accurate.
  • the steering wheel 31 is provided with a control device 311 for global control, and the control device 311 includes a button 3111 and a display screen 3112.
  • the control device can perform the structural design and the control program design more specifically according to the need, and is not limited to the form shown in the drawings, and therefore will not be described in detail in this embodiment.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Steering Controls (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Transmission Devices (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

一种汽车转向系统，用于控制汽车的左前轮和右前轮的转向，左前轮上设有左支撑轴，右前轮上设有右支撑轴，其包括：方向盘（31），转向传动装置（32）、左转盘（331）、右转盘（332）及转向装置（34）；方向盘与转向传动装置的一端连接，转向传动装置的另一端与转向装置衔接，左转盘和右转盘分别位于转向装置的两端，左转盘与左支撑轴连接，右转盘与右支撑轴连接；转向装置包括左钢丝绳（341）、右钢丝绳（342）及同步带（343），左钢丝绳两端分别缠绕于左转盘和同步带上，右钢丝绳两端分别缠绕于右转盘上和同步带上。该转向系统巧妙地运用钢丝绳对车轮进行转向控制，其结构简单、制造难度低、制造成本低、准确度高，其特别适用于电动车上。

Description

汽车转向系统 技术领域
本发明属于汽车领域，尤其涉及一种汽车转向系统。
 背景技术
传统的汽车转向系统的结构特征是前轴两端设有转向节，并由带内倾角的主销相连接；前轴上还设有转向梯形机构。上述结构复杂，灵活度低，其不适应于安装特定的轮毂电机及车轮，尤其不适用于电动汽车的使用。另外，由于传统的汽车转向系统结构复杂，其制造难度也大，制造成本也非常高。可见，传统的汽车转向系统已经严重制约了汽车（特别是电动汽车）的发展。
 技术问题
本发明的目的在于克服现有技术之缺陷，提供了一种结构简单、转向准确的汽车转向系统，该汽车转向系统也可实现逆向转向。
 技术解决方案
本发明是这样是实现的，一种汽车转向系统，用于控制汽车的左前轮和右前轮的转向，所述左前轮上设有左支撑轴，所述右前轮上设有右支撑轴，包括：方向盘、用于传递所述方向盘转动角度的转向传动装置、用于调节所述左前轮转动角度的左转盘、用于调节所述右前轮转动角度的右转盘以及用于控制所述左转盘和所述右转盘转动角度的转向装置；
所述方向盘与所述转向传动装置的一端连接，所述转向传动装置的另一端与所述转向装置衔接，所述左转盘和所述右转盘分别位于所述转向装置的两端，所述左转盘与所述左支撑轴连接，所述右转盘与所述右支撑轴连接；
所述转向装置包括左钢丝绳、右钢丝绳以及由所述转向传动装置带动回转的同步带，所述左钢丝绳两端分别缠绕于所述左转盘上和所述同步带上，所述右钢丝绳两端分别缠绕于所述右转盘上和所述同步带上。
进一步地，所述转向装置还包括用于将所述左钢丝绳夹持于所述同步带上或者将所述左钢丝绳从所述同步带上松放的左同步带锁件，以及用于将所述右钢丝绳夹持于所述同步带上或者将所述右钢丝绳从所述同步带上松放的右同步带锁件，所述左同步带锁件及所述右同步带锁件均设于所述同步带上；所述方向盘上设有用于控制所述左同步带锁件及所述右同步带锁件的控制装置。
更进一步地，所述左同步带锁件包括可将所述左钢丝绳夹持于所述同步带上的左夹块以及用于控制所述左夹块夹紧和松放状态的左电磁铁，所述左电磁铁设于所述左夹块上；所述右同步带锁件包括可将所述右钢丝绳夹持于所述同步带上的右夹块以及用于控制所述右夹块夹紧和松放状态的右电磁铁，所述右电磁铁设于所述右夹块上。
具体地，所述转向装置还包括可同时控制所述左同步带锁件和所述右同步带锁件距离的中间锁件，所述中间锁件设于所述同步带上且位于所述左同步带锁件和所述右同步带锁件之间，所述左同步带锁件和所述右同步带锁件均通过中间钢丝绳与所述中间锁件连接。
更具体地，所述中间锁件包括卷轴和中间电磁铁，所述中间电磁铁设于所述卷轴上，所述中间钢丝绳缠绕于所述卷轴上。
进一步地，所述转向传动装置包括上传动轴及下传动轴，所述上传动轴的上端与所述方向盘连接，所述上传动轴的下端与所述下传动轴的上端连接，所述下传动轴的下端与所述同步带配合连接。
更进一步地，所述下传动轴的下端设有传动齿，所述同步带上设有与所述传动齿啮合的波浪齿。
具体地，还包括左电机和右电机，所述左转盘通过所述左电机与所述左支撑轴连接，所述右转盘通过所述右电机与所述右支撑轴连接。
更具体地，所述方向盘上设有用于控制所述左电机及所述右电机的控制装置。
特别地，所述方向盘上设有用于全局控制的控制装置，所述控制装置包括按键和显示屏。
 有益效果
本发明所提供的汽车转向系统具有以下技术效果：
本发明的同步带和转向传动装置配合，巧妙地通过钢丝绳（左钢丝绳和右钢丝绳）及其绕法，准确地带动左转盘和右转盘转动，再通过左转盘和右转盘分别准确地控制左前轮和右前轮的转向角度。另外，本发明还可如现有汽车转向系统一样，能够达到可逆向转动的效果。本发明结构简单、制造难度低、制造成本低、准确度高，方便汽车及其车轮的安装，其特别适用于电动汽车上。
 附图说明
图1为本发明实施例所提供的汽车转向系统的俯视立体图；
图2为本发明实施例所提供的汽车转向系统的仰视立体图；
图3为图1中I的局部放大图；
图4为图1中II的局部放大图；
图5为图2中III的局部放大图；
图6为图2中IV的局部放大图。
 本发明的实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
参见图1与图2，本发明实施例提供了一种汽车转向系统，用于控制汽车的左前轮和右前轮的转向，所述左前轮上设有左支撑轴，所述右前轮上设有右支撑轴（图未示出），包括：方向盘31、用于传递所述方向盘31转动角度的转向传动装置32、用于调节所述左前轮转动角度的左转盘331、用于调节所述右前轮转动角度的右转盘332以及用于控制所述左转盘331和所述右转盘332转动角度的转向装置34；
所述方向盘31与所述转向传动装置32的一端连接，所述转向传动装置32的另一端与所述转向装置34衔接，所述左转盘331和所述右转盘332分别位于所述转向装置34的两端，所述左转盘331与所述左支撑轴连接，所述右转盘332与所述右支撑轴连接；
所述转向装置34包括左钢丝绳341、右钢丝绳342以及由所述转向传动装置32带动回转的同步带343，所述左钢丝绳341两端分别缠绕于所述左转盘331上和所述同步带343上，所述右钢丝绳342两端分别缠绕于所述右转盘332上和所述同步带343上。
转动方向盘31时，其转动角度通过转向传动装置32传递给同步带343，同步带343带动左钢丝绳341和右钢丝绳342同时传动，左钢丝绳341和右钢丝绳342分别同时调整左前轮和右前轮的转动角度。
本发明的同步带343和转向传动装置32配合，巧妙地通过钢丝绳（左钢丝绳341和右钢丝绳342）及其绕法，准确地带动左转盘331和右转盘332转动，再通过左转盘331和右转盘332分别准确地控制左前轮和右前轮的转向角度。另外，本发明还可如现有汽车转向系统一样，能够达到可逆向转动的效果。本发明结构简单、制造难度低、制造成本低、准确度高，方便汽车及其车轮（轮毂）的安装，其特别适用于电动汽车上。
参见图4与图6，所述转向装置34还包括用于将所述左钢丝绳341夹持于所述同步带343上或者将所述左钢丝绳341从所述同步带343上松放的左同步带锁件344，以及用于将所述右钢丝绳342夹持于所述同步带343上或者将所述右钢丝绳342从所述同步带343上松放的右同步带锁件345，所述左同步带锁件344及所述右同步带锁件345均设于所述同步带343上；所述方向盘31上设有用于控制所述左同步带锁件344及所述右同步带锁件345的控制装置。当汽车常规使用时（即向前行驶时），左同步带锁件344和右同步带锁件345分别将左钢丝绳341和右钢丝绳342固定夹紧于同步带343上，这样，本发明就可以如传统汽车那样操作转向，方向盘31转动，通过同步带343带动钢丝绳的传动，间接准确地控制车轮的转向。当汽车需要非常规使用时（即90°横向行驶时），驾驶员通过操作方向盘31上的控制装置，使得左同步带锁件344和右同步带锁件345将左钢丝绳341和右钢丝绳342从同步带343上松放，此时钢丝绳不受同步带343的带动，控制装置再通过程序控制，使得左前轮和右前轮分别向外侧展开，最终二者形成180°，即左前轮和右前轮在一条直线上，可见，此时汽车就可横向行驶，这种行驶方式特别适用于泊车，特别适用于位置较窄的停车位。横向行驶完毕后，通过控制装置，使得左前轮和右前轮恢复到原始位置，左同步带锁件344和右同步带锁件345再次夹紧钢丝绳，这样，又可回到常规驾驶的状态。
继续参见图4与图6，作为本发明关于左同步带锁件344和右同步带锁件345的一种具体实施方式，所述左同步带锁件344包括可将所述左钢丝绳341夹持于所述同步带343上的左夹块3441以及用于控制所述左夹块3441夹紧和松放状态的左电磁铁3442，所述左电磁铁3442设于所述左夹块3441上；所述右同步带锁件345包括可将所述右钢丝绳342夹持于所述同步带343上的右夹块3451以及用于控制所述右夹块3451夹紧和松放状态的右电磁铁3452，所述右电磁铁3452设于所述右夹块3451上。以夹块和电磁铁配合的形式实现夹紧和松放钢丝绳的效果，其实施的方法简单，易于实现。
具体地，所述转向装置34还包括可同时控制所述左同步带锁件344和所述右同步带锁件345距离的中间锁件346，所述中间锁件346设于所述同步带343上且位于所述左同步带锁件344和所述右同步带锁件345之间，所述左同步带锁件344和所述右同步带锁件345均通过中间钢丝绳347与所述中间锁件346连接。中间锁件346在本发明实施例中，不但可以控制左同步带锁件344和右同步带锁件345距离，而且还可以对钢丝绳进行操作控制，例如间接控制左转盘331和右转盘332的转动角度，即在上述常规驾驶和横向驾驶之间的过渡过程中发挥重要作用。
参见图6，作为中间锁件346的一种具体实施方式，所述中间锁件346包括卷轴3461和中间电磁铁3462，所述中间电磁铁3462设于所述卷轴3461上，所述中间钢丝绳347缠绕于所述卷轴3461上。
参见图3与图5，所述转向传动装置32包括上传动轴321及下传动轴322，所述上传动轴321的上端与所述方向盘31连接，所述上传动轴321的下端与所述下传动轴322的上端连接，所述下传动轴322的下端与所述同步带343配合连接。具体地，本发明中的转向传动装置32也可以参照现有汽车的转向传动装置设计，只需能达到传递方向盘转动角度即可。
具体地，所述下传动轴322的下端设有传动齿，所述同步带343上设有与所述传动齿啮合的波浪齿。
进一步地，本发明实施例所提供的汽车转向系统还包括左电机和右电机（图未示出），所述左转盘331通过所述左电机与所述左支撑轴连接，所述右转盘332通过所述右电机与所述右支撑轴连接。本发明的电机可以起到助力作用，左电机和右电机的具体设置形式可以根据需要灵活处理，因此附图并未示出其具体设置方式。
更进一步地，所述方向盘31上设有用于控制所述左电机及所述右电机的控制装置。左电机及右电机除了直接受左转盘331和右转盘332的直接控制外，还受到控制装置的间接控制，使得汽车的转向更加准确。
参见图1，所述方向盘31上设有用于全局控制的控制装置311，所述控制装置311包括按键3111和显示屏3112。其中，控制装置可以根据需要更具体地进行结构设计和控制程序设计，而并不限于附图所示的形式，因此在本实施例中不再赘述。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换或改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种汽车转向系统，用于控制汽车的左前轮和右前轮的转向，所述左前轮上设有左支撑轴，所述右前轮上设有右支撑轴，其特征在于，包括：方向盘、用于传递所述方向盘转动角度的转向传动装置、用于调节所述左前轮转动角度的左转盘、用于调节所述右前轮转动角度的右转盘以及用于控制所述左转盘和所述右转盘转动角度的转向装置；
    所述方向盘与所述转向传动装置的一端连接，所述转向传动装置的另一端与所述转向装置衔接，所述左转盘和所述右转盘分别位于所述转向装置的两端，所述左转盘与所述左支撑轴连接，所述右转盘与所述右支撑轴连接；
    所述转向装置包括左钢丝绳、右钢丝绳以及由所述转向传动装置带动回转的同步带，所述左钢丝绳两端分别缠绕于所述左转盘上和所述同步带上，所述右钢丝绳两端分别缠绕于所述右转盘上和所述同步带上。
  2. 如权利要求1所述的汽车转向系统，其特征在于：所述转向装置还包括用于将所述左钢丝绳夹持于所述同步带上或者将所述左钢丝绳从所述同步带上松放的左同步带锁件，以及用于将所述右钢丝绳夹持于所述同步带上或者将所述右钢丝绳从所述同步带上松放的右同步带锁件，所述左同步带锁件及所述右同步带锁件均设于所述同步带上；所述方向盘上设有用于控制所述左同步带锁件及所述右同步带锁件的控制装置。
  3. 如权利要求2所述的汽车转向系统，其特征在于：所述左同步带锁件包括可将所述左钢丝绳夹持于所述同步带上的左夹块以及用于控制所述左夹块夹紧和松放状态的左电磁铁，所述左电磁铁设于所述左夹块上；所述右同步带锁件包括可将所述右钢丝绳夹持于所述同步带上的右夹块以及用于控制所述右夹块夹紧和松放状态的右电磁铁，所述右电磁铁设于所述右夹块上。
  4. 如权利要求2所述的汽车转向系统，其特征在于：所述转向装置还包括可同时控制所述左同步带锁件和所述右同步带锁件距离的中间锁件，所述中间锁件设于所述同步带上且位于所述左同步带锁件和所述右同步带锁件之间，所述左同步带锁件和所述右同步带锁件均通过中间钢丝绳与所述中间锁件连接。
  5. 如权利要求4所述的汽车转向系统，其特征在于：所述中间锁件包括卷轴和中间电磁铁，所述中间电磁铁设于所述卷轴上，所述中间钢丝绳缠绕于所述卷轴上。
  6. 如权利要求1-5任一项所述的汽车转向系统，其特征在于：所述转向传动装置包括上传动轴及下传动轴，所述上传动轴的上端与所述方向盘连接，所述上传动轴的下端与所述下传动轴的上端连接，所述下传动轴的下端与所述同步带配合连接。
  7. 如权利要求6所述的汽车转向系统，其特征在于：所述下传动轴的下端设有传动齿，所述同步带上设有与所述传动齿啮合的波浪齿。
  8. 如权利要求1所述的汽车转向系统，其特征在于：还包括左电机和右电机，所述左转盘通过所述左电机与所述左支撑轴连接，所述右转盘通过所述右电机与所述右支撑轴连接。
  9. 如权利要求8所述的汽车转向系统，其特征在于：所述方向盘上设有用于控制所述左电机及所述右电机的控制装置。
  10. 如权利要求1所述的汽车转向系统，其特征在于：所述方向盘上设有用于全局控制的控制装置，所述控制装置包括按键和显示屏。
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