• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SE1051001A1
    申请号:SE1051001
    申请日:2010-09-28
    公开日:2012-03-29
    发明作者:Bo Vikarby
    申请人:Oestergrens Elmotor Ab；
    IPC主号:
    专利说明:

    1015202530the vehicle is given a speed boost on one side and onespeed reduction on the other side of the vehicle.
    According to a preferred embodiment. of the invention is oneinverter arranged to invert the output signal to the wheelon one side of the vehicle.
    The invention will now be described in more detail in the form of aembodiments, illustrated with the aid of the appendedthe drawing figures, where Fig. 1 schematically in plan view in the form ofa block diagram shows a articulated vehicle, and Fig. 2 showsschematically shows a wiring diagram for those of the inventionessential functions for the steering of the vehicle.thus a block diagram of a waist guideFig. 1 showsvehicles, which can be, for example, a lawn mower. The vehicle hasa front part 1 and a rear part 2, which parts of the vehicleare connected to each other via a pivot joint 3.wheel,The vehicle has fourtwo front wheels 4, 5 as. sits * in the front ofthe vehicle, as well as two rear wheels 6, 7 which are located in the rear partof the vehicle. A steering wheel 8 is arranged to steer the vehicle,and the steering column of the steering wheel is by means of a mechanical powertransfer means 9 connected to a turntable 10, which is fixedconnected to the pivot joint 3, so that the mechanical power transmissionthe rotating member 9 can get the turntable 10 through the rotation of the steering wheel 8to be rotated around the pivot joint. 3, so that the vehicle's front andrear parts 1, 2 can be rotated relative to each other.
    The vehicle is electrically powered, and includes an electric motor11, 12 in each. one of the 'rear wheels 6, 7. Batteries * orother electric power sources, not shown, are provided into provide the necessary power to propel the vehicle.net, as well as for the supply of any arranged units,such as e.g. cutting unit, in the vehicle.
    C: Documents and Settingsunarkalocal SettingsWemporary Lntemet Files Content.Outlook IZZQ1SD8 100176SE Application textdocx, 2010-09-281015202530For the operation of the vehicle, it can, for example, be arrangedpartly a main switch, e.g. a pedal 13 on the vehicle, see Figs.2, which pedal must be held down to bring the vehicle overat all should get some power for propulsion or toarranged units. For regulating the speed of the vehicle isarranged a control 14, "accelerator pedal", on the vehicle, with whichthe power supply to the electric motors 11, 12 is regulated. Power supplythe supply to the engines is regulated by the accelerator pedal 14 so that boththe engines will thus run just as fast. The regulation ofthe power to the two motors takes place in a separate control unit15, 16 for each motor 11, 12.
    With the above-mentioned design, the steering of the vehicle becomesgene sluggish, depending on the weight of the vehicle. The power that mustis placed on the steering wheel 8 in order to use the mechanical powerthe transfer means 9 rotate the turntable 10 and thus the pivot joint3 in the vehicle.
    To get to grips with the sluggish steering is thereforearranged on the steering wheel of the vehicle a force sensor 17, which sensesof the torque applied to the steering column by means of the steering wheel 8,and also in which direction the torque acts on the steering column.
    The force sensor 17 emits an electric orsignal, positivenegative, and the size of which depends on thetet. This electrical signal is conducted through an amplifier 18to each of the control units 15, 16 for the electric motors,where, however, the signal to one control unit 15 is conducted via oneinverters 19 which reverse the polarity of the signal so that theyboth control units 15, 16 are supplied with equal signals fromforce sensor 17 but with different polarity.toThese signals fromthe force sensor 17 is supplied to the control units 15, 16 andadded to the speed control signal suppliedfrom the accelerator pedal 14.
    C: Documents and Settingsvnarkalocal SettingsWemporary Lntemet Files Content.Outlook IZZQ1SD8 100176SE Application textdocx, 2010-09-281015202530If then the knob 8 is turned, a positive electrical signal willadded to one wheel to drive it in one direction, anda negative signal to the other wheel to drive it inopposite direction. If no speed signal is applied fromthe accelerator pedal, the vehicle will try to turn aroundjoint 3 in the direction in which the steering wheel is turned, by onethe motor is driven forwards and the other backwards. About the accelerator pedal 14while depressed, the signal comes from the knob 8 andthe force sensor 17 to be supplied as a small positive additivesignal to the wheel on one side and as a negative, hash-deceleration, signal to the wheel on the other side,means that the two wheels are driven at different speeds and thatthe device thus swings.
    A control device according to the invention can also be providedat. an Indie-controlled vehicle which is driven by more than two wheels,for exampleor more wheels,drive of all wheels on the vehicle, for example fourand there even in such a case the output signalfrom a force sensor on the steering column is supplied to the control unitfor the drive motors, with a negative signal applied toone side of the vehicle and a positive signal to the other sideof the vehicle when turning.
    With. the control device. according to the invention. thus obtained ona very simple way a power-assisted control for onearticulated vehicle, so that the force that needs to be applied tothe steering wheel to achieve the desired steering at leastsignificantly compared to a completely mechanical manual control.
    The control according to the invention provides a servo effect which reducesthe manual power requirement, and this with a minimum ofadditional components. This thus gives a cost-effectiveeffective and safe solution of the need for control power. The control devicealso means that the steering angle required to achieve theC: Documents and Settingsunarkalocal SettingsWemporary Lntemet Files Content.Outlook IZZQ1SD8 100176SE Application textdocx, 2010-09-281015ma the intended control can be kept limited, which doesthat the steering characteristics are also improved compared to a vehiclewhere to reduce the required force has beenhad to have a high gear ratio when shifting from the steering wheelthe bar.
    The control device according to the invention is primarily intendedfor light and relatively cheap electric vehicles, such as e.g.lawn mowers or other smaller vehicles. However, it is possibleto use the steering principle for all types of vehicles thathas electric motors for the individual wheels to drive the vehicle.
    It is also a given that the vehicle does not have to have a regular onesteering wheel, but a handlebar can be arranged insteadon a handlebar, with the corresponding function as steering wheel androd, or other equivalent governing body.
    C: Documents and Settingsvnarkalocal SettingsWemporary Lntemet Files Content.Outlook IZZQ1SD8 100176SE Application textdocx, 2010-09-28
    权利要求:
    Claims (8)
    [1]
    Steering device for a vehicle, articulated vehicle where an electric motor is arranged for each of at least two wheels (6, 7) of the vehicle for driving the wheels, a steering rod of the vehicle via a power transmission means (9) being directly connected for transmission of a torque applied to a steering wheel (8) of the steering column to a rotating joint (3) of the vehicle, characterized in that a force sensor (17) is arranged to sense the torque applied to the steering wheel and generate an electrical output signal, which electrical output signal is arranged to be supplied to a control unit (15, 16) which controls the electric motor (11, 12) in resp. wheels (6, 7) of the vehicle in such a way that the wheel on one side of the vehicle is given a speed supplement and the wheel on the other side of the vehicle a speed reduction.
    [2]
    Control device according to claim 1, characterized in that the force sensor (17) is arranged to emit a positive electrical output signal when the knob (8) is turned to a hob and a negative electrical signal when the knob is turned to the opposite hob.
    [3]
    3. Control device according to claim 1 or 2, characterized in that the force sensor (17), analog or digital, is arranged to emit an electrical output signal, the magnitude of which depends on the magnitude of the applied torque.
    [4]
    Control device according to claim 1, characterized in that a control unit (15, 16) is arranged for each of the electric motors (11, 12). k ä n n e t e c k n a d av (17)
    [5]
    Control device according to claim 4, that an inverter (19), in case the power sensor is analog, is arranged to change the polarity of it to one C: Documents and Settingsvnarkalocal SettingsWemporary Lntemet Files Content.Outlook IZZQ1SD8 100176EN textdocx, 2010-09-28 10 15 of the control units (15, 16) for the electric motors (11, 12) supplied with the electrical output signal.
    [6]
    Control device according to claim 5, characterized in that the applied electrical output signal is added or subtracted depending on the type of power sensor (17) to resp. control unit (15, 16) supplied torque or speed control signal.
    [7]
    Control device according to claim 14, characterized in that an electric motor (11, 12) is provided. for each of the driving wheels (6, 7) and. that the electrical (15, 16) of the vehicle, the output signal is supplied to the control units for these electric motors.
    [8]
    Control device according to claim 14, characterized in that an electric motor is arranged in each of the wheels of the vehicle, and that the electrical output signal is supplied to each of the control units for these electric motors. C: Documents and Settingsvnarkalocal SettingsWemporary lntemet Files Content.Outlook IZZQ1SD8 100176SE Application textdocx, 2010-09-28
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    同族专利:
    公开号 | 公开日
    WO2012044238A1|2012-04-05|
    SE535141C2|2012-04-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    SE501600C2|1994-05-20|1995-03-27|Stiga Ab|Control device in a riding lawnmower and included link elements for interconnecting transmission chains|
    US6283237B1|1999-06-01|2001-09-04|Caterpillar Inc.|Method and apparatus for steering articulated machines using variable speed devices|FR3002884B1|2013-03-05|2016-07-15|Patrick Bordier|TRANSPORTING DEVICE BY WHEEL REMOTE CONTROL|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1051001A|SE535141C2|2010-09-28|2010-09-28|Control device for articulated vehicles|SE1051001A| SE535141C2|2010-09-28|2010-09-28|Control device for articulated vehicles|
    PCT/SE2011/051151| WO2012044238A1|2010-09-28|2011-09-27|Steering device for a vehicle with articulated frame steering|
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