WO1998023239A1 - A motor-assisted wheel chair and a driving mechanism therefor - Google Patents

A motor-assisted wheel chair and a driving mechanism therefor

Info

Publication number
WO1998023239A1
WO1998023239A1 PCT/JP1997/004171 JP9704171W WO9823239A1 WO 1998023239 A1 WO1998023239 A1 WO 1998023239A1 JP 9704171 W JP9704171 W JP 9704171W WO 9823239 A1 WO9823239 A1 WO 9823239A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
wheel
battery
motor
common line
voltage
Prior art date
Application number
PCT/JP1997/004171
Other languages
French (fr)
Japanese (ja)
Inventor
Ichiro Fujioka
Original Assignee
Ichiro Fujioka
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62MRIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M13/00Transmissions characterised by use of friction rollers engaging the periphery of the ground wheel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT OR ACCOMODATION FOR PATIENTS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT OR ACCOMODATION FOR PATIENTS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A61G5/048Power-assistance activated by pushing on hand rim or on handlebar

Abstract

A motor-assisted wheel chair detects an input of man power and its motor (1) supplies auxiliary power in accordance with the input. The output of the motor (1) is controlled by switching a plurality of storage batteries in a driving circuit either to a series or a parallel. The output of the motor (1) is transmitted to wheels (5) through gears (3).

Description

Motor-assisted wheelchair and its driving mechanism

Battery tt-mechanical

Technical field

D of the invention, in an electric machine equipped with a battery, when charged, eliminating the need for loose charge IS instrument rock combined external energy during discharge, such as solar, to reduce the discharge sometimes generated electromagnetic noise, an apparatus.

Two of the invention is the electric car battery mounting, on the wheel drive mechanism, which is not out of the sound simple.

The third aspect of the present invention, utilizing the manual wheelchair of the mechanism that is most popular, on light 锺動 Assist wheelchair.

BACKGROUND

Electrical machinery electric vehicle equipped with the battery, the transport vehicle, a video camera, such as a portable personal computer often.

Battery used in these are often one of the voltage (DC). This battery to charge rectifies the AC ® pressure (commercial 戴源) a so-called charger system often you charged.

To the user, this charge ® device is (code, heavy, such as different for each manufacturer) cumbersome, price also become correspondingly 髙価.

Moreover, solar ® source, to charge to the single battery from a power supply voltage such as wind power fluctuates, separately provided to convert the varying voltage to a constant voltage by a controller such replacement sheets (Rule 26) yarns, loss there was a larger disadvantage.

Moreover, when supplying a variable 霪Ka the motor or the like, it is necessary to pulse supply at separately provided controller. Since this pulse is steep, the drawback to generate an electromagnetic wave noise mower ivy o

One of the invention is intended to exclude such drawbacks.

Where, as a driving method of an electric vehicle, in addition to the general method of driving a wheel center axis, there is a method of driving a nearby wheel periphery.

The latter, for fast 'low torque, fewer gears than the former, has been known to be motor driven (less loss).

And power, and, in the latter case, the to drive a roller without slippage of the tire itself, requires pressing of the tire several kg, lossy. Another way to drive irregularities gear provided to the wheel periphery, in this case, although the drive without firmly against the teeth between the concave convex gear and uneven driving roller has a drawback out sound during Bukkaru.

The second aspect of the present invention are those to be'll remove such disadvantages.

The third aspect of the present invention relates to an electric wheelchair (Tosuke type).

Moving the wheelchair are various commercially available. The main thing is changed-out movement of the hand lever one or handle 毽気 signal, in many cases to supply power from the battery to the motor.

This ® Dosha is heavy, oneness lack of a motion, there is a drawback of such.

The third aspect of the present invention is also the in to try to eliminate the disadvantage of consuming in a direction that does not change the manual wheelchair. Replacement disclosure of the paper (Rule 26) invention

First aspect of the present invention, a battery plurality prepared by circuit coupled respectively in parallel 'serial Suitsu quenching element, from changes power supply such as a commercial power supply or solar first power supply, by switching directly to be charged with still more switching directly various release 霪波 shaped, in particular, show that wave with less noise pulse generator is possible.

As a second aspect of the invention relates to a wheel periphery drive mechanism, and more by providing the guide roller newly, the uneven gear on the driving side and the driven side provided clearance Wakasen, Bukkari sound rather name and reliably to propose a drive mechanism capable.

As a third invention, a manual wheelchair handrail attached to the wheel in panel, and shows by attaching a vane wheel shaped reflector, not much different from conventional manual, that electric auxiliary wheelchair is possible . Drawings of the in-cylinder single description

DESCRIPTION OF THE DRAWINGS

Figure 1 shows an example charging and discharging device configuration, based on this structure, FIG. 2, FIG. 3, in Figure 4, respectively, commercial 氅源 waveform and charging timing, the amount of charge of each battery, the new method shows a pulse width modulation (PWM) waveform. Figure 5 shows the remaining charge ft of the two battery. Figure 6 is an example of a wheel drive mechanism, left motor is parallel to the wheel, right figure Ru example der perpendicular. FIG. 7 is a human power detecting mechanism of the electric assisted wheelchairs. Replacement shows a configuration example of a paper (Rule 26) invention for carrying out the * good form charging and discharging apparatus as an example of a 24 volt by the present invention in Figure 1.

B 1-B6 battery (B l, 84 is 12, the other is 6), SW1- SW 25 is switching element, M is a microcomputer, S is Nrapaneru and wind generators, II one 13 the flow detector, VI- V 3 is the voltage detector, T is external (and charging car) terminals, M is a motor, AC commercial power source terminal, R s is a current limiting resistor.

It shows an operation waveform diagram in the case of charging from the commercial power source in Figure 2.

In Figure 3 shows an operation waveform diagram in the case of a discharge pulse width modulation.

In operation according to these figures, firstly, when commercial 霪源 is positive half wave, the first view SW3, 8, 11, 16 were to ON, the battery B 3 When 戴源 voltage exceeds 6 V, 6 to start the charging. (SW1 7 is kept in the OFF). When the charge amount reaches the separately provided specified value, the switch ever is OFF, the on SW2, 8, 10, 16 and ON. Power supply voltage starts to charge the battery B 2, 3 and B5, 6 exceeds 12 V.

Thereafter, the ON in the same manner as described above in 18 V SW1, 7, 9, 15, the 24V SW 1, 8, 9, 16 to ON.

Then, from 24 V to 48 V, first, OFF the SW18, and the SW 17 to ON, to connect the two battery groups in series.

In the following 30 V, the SW3, 16, 3 1, 14 in 36, the 42V SW1, a replacement sheet (Rule 26) 15, to ON 48 In 5 ^ 1, 16.

In the above operation, since the variation in Takashikasumi amount of each battery is large, the negative half-wave of the commercial power source voltage repeats the above operation from the reversed connection of the battery group to OFF ON, SW 17 and SW18. (Charging i of each battery becomes relatively uniform). An example of a charge amount in each voltage in FIG. 3.

In FIG Ql- Q6 is a charge amount accumulated in the respective battery B l-B6 (Figure 1). Since the Q 3 and Q6 is small, it may be alone charging to the force \ another cycle at the time to increase the charging time at the time of the charge.

Next described charging from the solar panel.

The the S of FIG. 1 Seo one Rapaneru, V s represents the voltage.

When the voltage of V s is high, connecting to the high voltage of the battery, Murasakigu the low voltage of the battery when the day ® pressure has dropped to Kage'. (For example, ON and SW24) ie it absorbs energy efficiently source over la. (In the case of wind 霪機 is the same)

For ¾ air automobile such as a mobile, and SeMMitsuru front and side or behind the temporarily car battery charging car, it may be obtained travel energy charging energy.

Terminal T of Figure 1 is intended to capture this energy.

For example, when the vehicle body built-in battery 3 KWh is close to 0, when connecting the charging car 5 kWh, when to get to the next station with a 2 KWh "run while charging" is easily possible.

I b, I s, Im, Ij respectively, battery, solar, motor, when the setting lever flow charging car replacement sheet (Rule 26) Im = Ij- Ib + Is

That is, when measuring the respective currents of every moment, Ru can manage the charging of the battery.

Or more of the other, to charge while running may be supplemented with energy, but it is necessary to agree on public property in a contact or non-contact from the guard rail and road.

Then Sils for discharge.

By Inserting the Suitsuchi of Figure 1 is capable of various release ¾.

For example the DC 12 V only when the desired output is SW10, 16 and SW9, 14 to 0N alternately, may be O FF, available portable electronic devices in general.

If just as switching and charging in addition to a DC, an AC voltage can be generated, it can also be used as an uninterruptible gypsophila ¾. (However, the number of the battery will be many).

Here, the frequency modulation or pulse width modulation is often used in the motor driving relates (PWM- 勿綸, but is also possible release ¾ like this one), we propose a PWM new type.

Figure 5 shows the waveforms, How to put out waveform from 6 V to to 24 V is the same as switching the time Takashikasumi. (However, in the reverse direction switch)

The difference is, is the time until the next Suitsuchi shorter at a constant.

In example 5 KHz in FIG (T represents 1 cycle = 200 usee), at every 4 Usee sweep rate Tsuchingu becomes 24 V after 16 usee.

X is a command value of either issue how much output, large if long time to maintain the 24 V no longer, (¾ large, about 200 usee), if X is less 24, 18, 12, 6, 0 v replacement lowering the paper (rule 26). (X = o even be substantial area of ​​the pulse. If you want to lesser area, is generated in a conventional PWM) which will be referred to as a step PWM.

Since the voltage changes in four steps, high-frequency noise (锺磁 wave noise) is reduced to 1 Bruno 4, malfunction of other equipment, it is possible to avoid the induction losses. This method can also be applied to the case of frequency modulation.

Well, Nitsukado (NiCd) batteries, etc. It is known that there is a memory one effect. According to a fourth figure describes a method to avoid this.

B 7, which may be left (group) battery, B 8 is a right (group) batteries, L is the charge level 1 indicates 0%, slash indicates that the battery is charging.

First, the left and right battery is charged to full.

Discharge is up to the level of L is left at the same time the fi, is discharged, and discharged to empty only right battery-when it reaches the L, then it starts to the left of the discharge. (Inform the need for charging to the user at the alarm time, and you serial billion flag = "right" internally) again, the same way as the last time to discharge to a level L after 满 charged but it is, after the Soviet Union, (this time left) has not battery flagged to discharge until the 0, and bra grayed = left.

Since use up this way, discharge to when the battery alternately, memory one effect can and the child to eliminate, and, without having to throw away the ZanTakashi 戴量 (use the next time), it may be used.

This method can be applied to the left and right of the battery even in the case of one by one. Processing of replacement sheets (Rule 26) or more charge 'discharge may be carried out in the microphone port computer C of Figure 1. Next, it referred to as the electric cars of the drive mechanism.

Two examples of the wheel drive according to the invention in Figure 6.

With an uneven wheel periphery to one of the conventional driving method, there is a method of driving in uneven roller with a motor (FIG left) force disadvantage sound when rotation occurs. The motor to swing as a countermeasure against deflection of the wheel, the concave projecting portion of the force each other this when driving against the wheel periphery is because the Bukkaru.

As a method to eliminate this sound, and an uneven portion in the helical tooth may be always in contact. (There is a 髙価)

The proposed structure not to sound at a linear tooth profile along in Figure 6 will be described.

1 is a motor for swing around the fulcrum 2. The end of the motor 1 is equipped with a gear 3 and the guide roller 4 is pressed against the spring 6 to the wheels 5 of the opponent.

The diameter of the guide roller 4, a gear with each other is set to have a small gap. Thus, the gear with each other even wheel 5 is caused to twist due to aging, except a portion where the driving force is exerted, with a constant gap. (Bukkari sound of teeth between the gear does not occur)

In Figure 6 is separate from the guide roller 4 and the gear 3 may be integrated.

Examples of the FIG left, since the motor 1 is attached in parallel to the wheel 5, such as electric bicycles and folding ® dynamic wheel chair is useful when you want to reduce the width.

Figure 6, an example of a right electric automobiles, carts, paper (Rule 26) replacement also be device width is large like a boat it is convenient to apply.

Another advantage of example of Figure 6, since the diameter of the final gear is large, it is unnecessary to gear for the torque converter, that amount, the loss is small.

Further, (since torque is small) Material of gear also be, for example, a light material such as 榭脂, the entire body becomes lighter.

Figure 7 is a specific application example, shows a force sensor-mechanism and 1 for the popular manual wheelchair and the motor-assisted (assist) of.

Handrail attached to the vane wheel shaped reflector 8 7 causes the spring coupling to the wheel 5 fitted with the vane wheel-shaped transparent plate 9.

Light from the light emitter 1 0 passes through the transparent plate 9, and reflected by the reflector 8, received by the photodetector 1 1.

When the handrail 7 apply a force, shift the reflective plate 8 and the transparent plate 9, a difference between the bright time and the dark time occurs.

Changing this difference to an electrical signal, changing in proportion to the motor driving force can provide an auxiliary force proportional to the applied force. Become the so-called ¾ dynamic Asis Bok wheelchair.

Industrial Applicability

As described above, according to the present invention, since the electrical energy can simply and effectively used, can be applied to the electromechanical general battery-mounted.

In particular, for lightweight and can be simple wheel drive mechanism, lightly, it is possible to realize an inexpensive 霪動 cars and transport vehicles. Replacement sheet (Rule 26)

Claims

請 comprising a request for range plurality of batteries in series' parallel connection both Ru charging and discharging device driving gear and the guide roller Na from the Suitsuchingu element processor and a, and the strength of ¾ motive manpower driven by a motor to swing electric auxiliary wheelchair replacement sheets (rule 26) claims of amendments [1 998 February 2 was characterized by changing the motor driving force by the time difference between the brightness of the reflected light to is (02. 02.98 ) International Bureau acceptance: application range 1 one 3 of the original claims have been corrected. (1 page)]
1. In (corrected) battery electric machine, a plurality of batteries connected in series, from each of the battery, a switching element connected in parallel to a common line, consists of a processor, said common line AC or charge voltage directly, or charging and discharging apparatus characterized by discharging the pulse train (or stepped pulse train) voltage to the common line
2. In (corrected) battery electric vehicle, and a DA lug wheels cut parallel to the wheel, a drive gear provided on the motor shaft, and a guide roller having separately on the motor shaft, consisting of wheel drive unit
3. In (corrected) battery electric auxiliary wheelchair, arrows in the center of the handrail wheel -
Electric auxiliary wheelchair to the reflector, characterized in that the vane wheel shaped ^ ¾ plate in the center of the wheel are connected by 該手 sliding wheel and panel, respectively provided
Corrected sheet (Convention Article 19) Instructions under the Convention 1 Article 9
Claim 1, wherein the putting of the common line representation, the switching element is made clear that it is connected in parallel from the common line.
Input AC voltage may be provided a common line separately for output pulse, but may be shared.
Cited example is 1, in the (designated as new BUS) common line in the example is input and output sharing, and is an example of moving the two sets of the 2 4 V at the same time.
The input in the cited reference is an AC voltage itself, the voltage der connexion after full-wave rectification is also included in the scope of claim 1.
The second claims is limited to the wheel drive apparatus for an electric vehicle battery mounting.
Furthermore, (radially from the center) parallel to the wheel surface to drive containing wheels notched in irregularities in the guide rollers geared.
In this way, normal motor (not thin even) even can and child thin body, no gear noise can be reliably driven.
Furthermore, small gears, etc. for high-speed, low-torque drive, the effect of the light-髙効 constant and low cost can be expected.
3 claims is limited to the electric assist wheelchair battery mounting.
Furthermore, it showed that per unit for detecting a human power, be utilized conventional manual wheelchair (external) is feasible.
PCT/JP1997/004171 1996-11-23 1997-11-17 A motor-assisted wheel chair and a driving mechanism therefor WO1998023239A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP8/352125 1996-11-23
JP35212596 1996-11-23

Publications (1)

Publication Number Publication Date
WO1998023239A1 true true WO1998023239A1 (en) 1998-06-04

Family

ID=18421951

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1997/004171 WO1998023239A1 (en) 1996-11-23 1997-11-17 A motor-assisted wheel chair and a driving mechanism therefor

Country Status (2)

Country Link
CN (1) CN1209737A (en)
WO (1) WO1998023239A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101214181B (en) 2008-01-12 2010-06-16 郑凯宏 Vehicle for disabled person and using method thereof
CN106109117B (en) * 2016-06-27 2018-04-13 张七龙 The method of making and using the device a wheelchair skill human drive roll
CN106038100B (en) * 2016-06-27 2018-06-26 张七龙 The method of manufacturing a turbine artificial wheelchair driving device
CN105997380B (en) * 2016-06-27 2018-07-10 张七龙 Shake manual wheelchair skill drive

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100851A (en) * 1959-11-03 1963-08-13 Ling Temco Vought Inc High power synthetic waveform generator
US3867643A (en) * 1974-01-14 1975-02-18 Massachusetts Inst Technology Electric power converter
GB2043554A (en) * 1979-02-02 1980-10-08 Biddle Eng Co Ltd Motorised wheelchairs
GB2134056A (en) * 1982-12-31 1984-08-08 Cecil James Watkins Folding, motorized wheelchair
US4641847A (en) * 1985-12-16 1987-02-10 Busse Ronald E Single lever control wheel chair
JPH0274491A (en) * 1988-09-10 1990-03-14 Matsushita Electric Works Ltd Bicycle with motor
EP0403978A2 (en) * 1989-06-18 1990-12-27 S.A.E. Afikim An auxiliary drive for vehicles
EP0430794A1 (en) * 1989-11-28 1991-06-05 Pierre José Soto Collapsible wheelchair and bag for transporting such a chair when collapsed
JPH0660203U (en) * 1992-06-23 1994-08-19 一路 藤岡 New traffic system
JPH07215261A (en) * 1994-02-03 1995-08-15 Araya Kogyo Kk Wheel
JPH0743806U (en) * 1992-03-27 1995-09-19 一路 藤岡 Energy and belt device
EP0675037A1 (en) * 1994-03-29 1995-10-04 Sanyo Electric Co. Ltd Electric bicycle
JPH07327323A (en) * 1994-05-31 1995-12-12 Nemitsuku Ramuda Kk Battery system

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100851A (en) * 1959-11-03 1963-08-13 Ling Temco Vought Inc High power synthetic waveform generator
US3867643A (en) * 1974-01-14 1975-02-18 Massachusetts Inst Technology Electric power converter
GB2043554A (en) * 1979-02-02 1980-10-08 Biddle Eng Co Ltd Motorised wheelchairs
GB2134056A (en) * 1982-12-31 1984-08-08 Cecil James Watkins Folding, motorized wheelchair
US4641847A (en) * 1985-12-16 1987-02-10 Busse Ronald E Single lever control wheel chair
JPH0274491A (en) * 1988-09-10 1990-03-14 Matsushita Electric Works Ltd Bicycle with motor
EP0403978A2 (en) * 1989-06-18 1990-12-27 S.A.E. Afikim An auxiliary drive for vehicles
EP0430794A1 (en) * 1989-11-28 1991-06-05 Pierre José Soto Collapsible wheelchair and bag for transporting such a chair when collapsed
JPH0743806U (en) * 1992-03-27 1995-09-19 一路 藤岡 Energy and belt device
JPH0660203U (en) * 1992-06-23 1994-08-19 一路 藤岡 New traffic system
JPH07215261A (en) * 1994-02-03 1995-08-15 Araya Kogyo Kk Wheel
EP0675037A1 (en) * 1994-03-29 1995-10-04 Sanyo Electric Co. Ltd Electric bicycle
JPH07327323A (en) * 1994-05-31 1995-12-12 Nemitsuku Ramuda Kk Battery system

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