CN201105800Y

CN201105800Y - Pedal force sensing system of electric power-assisted bicycle

Info

Publication number: CN201105800Y
Application number: CNU2007201753155U
Authority: CN
Inventors: 梁洽鑫
Original assignee: JD Components Co Ltd
Current assignee: JD Components Co Ltd
Priority date: 2007-08-28
Filing date: 2007-08-28
Publication date: 2008-08-27
Anticipated expiration: 2017-08-28

Abstract

The utility model relates to a pedal force sensory system for electricity-aided bicycles. The pedal force sensory system is arranged on an electricity-aided bicycle which comprises a bicycle body, at least a damper, a battery, a drive motor and a pedal drive mechanism, and the pedal drive mechanism consists of a first pedal and a second pedal and bears the pedal force to drive a pedal arbor to rotate; wherein, the pedal force sensory system comprises a pedal force sensory component which is provided with a plurality of sensory parts positioned on the first pedal of the pedal drive mechanism to measure the force born by the first pedal; a main control which is electrically connected with the battery, the drive motor and the damper to receive the pedal force sensory signals of the pedal force sensory components so as to control the rotation of the drive motor through the sensory signals of the pedal force and control the suspension stroke of the damper. As a result, the pedal force sensory system can improve the safety of electricity-aided bicycles and the measurement of the pedal force is much more accurate.

Description

The pedal force sensing system of electric booster bicycle

Technical field

The utility model relates to a kind of electric booster bicycle, is meant a kind of pedal force sensing system of electric booster bicycle especially.

Background technology

Under the influence that oil price climbs up and up, the energy-conservation vehicle have become popular focus, wherein, power-actuated electric booster bicycle is owing to possessed the advantage of pollution-free and low power consuming, therefore in recent years, no matter electric booster bicycle is the vehicle that are used to body-building, leisure or short distance, it is day by day generalizing on the market.

In general, electric booster bicycle be power-assisted according to user's sufficient legpower and default than pattern, decide the size of its motor-assisted supply, so electric booster bicycle must be installed pedal force sensing system, with the size of sensing user foot legpower; And in the prior art, industry mainly is installed on various sensors driven wheel or rear axle, with the pressure that bears of sensing gear rotational speed or wheel shaft, and then converts sensing signal to control system, and is motor-assisted to determine.

But, above-mentioned sensing modes still exists the part shortcoming, rotating speed with the sensing driven wheel, when the user does not apply any sufficient legpower again, driven wheel still can be rotated further, then when the user does not trample in bicycle because of burst accident, system will be not the power-assisted of stop supplies motor immediately, relatively cause danger easily; On the other hand, with the pressure that bears of sensing wheel shaft, the physical construction of its installation is comparatively complicated, and is relatively also inconvenient in the maintenance; What therefore, existing skill still remained to be improved locates.

The utility model content

Main purpose of the present utility model is that a kind of pedal force sensing system of electric booster bicycle is being provided, and it can improve the safety that electric booster bicycle drives, and user's sufficient legpower sensing is certain more.

Another purpose of the present utility model is the pedal force sensing system that a kind of electric booster bicycle is provided again, and it can reduce the electric wire number that bicycle exposes, and keeps in repair more conveniently and allow.

For taking off the creation purpose before reaching, the pedal force sensing system of a kind of electric booster bicycle that the utility model provides, be to be installed in an electric booster bicycle, this bicycle includes a car body, at least one Shock absorber, a battery, a CD-ROM drive motor and a foot and steps on transmission device, this foot is stepped on transmission device and is had one first pedal and one second pedal, is to bear the foot strength of stepping on and drive one and step on arbor and rotate; Wherein, this pedal force sensing system includes: a legpower sensing group, have several sensing members, and be to be installed in first pedal that this foot is stepped on transmission device, to record the sufficient legpower that this first pedal is born; One primary controller is to be electrically connected at this battery, this Shock absorber and this CD-ROM drive motor, and receives the sufficient legpower sensing signal of this legpower sensing group, and then controls the rotation of this CD-ROM drive motor according to sufficient legpower sensing signal, and the shock-absorbing stroke of this Shock absorber.

The beneficial effects of the utility model are by enforcement of the present utility model, can improve the safety that electric booster bicycle drives, and the sensing of sufficient legpower to be certain more.

More understand characteristics of the present utility model and effect for making, lift following examples now and cooperate graphic being described as follows:

Description of drawings

Fig. 1 is the schematic appearance of the utility model one preferred embodiment, is the structure that shows bicycle;

Fig. 2 generally is same as Fig. 1, shows the circuit connecting relation between each member;

Fig. 3 is the partial enlarged drawing of the utility model one preferred embodiment;

Fig. 4 is the automatically controlled figure of the utility model one preferred embodiment.

[primary clustering nomenclature]

Car body 10 driver's framves 11 Front fork vibration abatement devices 12

Battery 13 CD-ROM drive motor 15

Foot is stepped on transmission device 17 first pedals 171

Second pedal, 173 gear clusters 175

Shelf 19

Legpower sensing group 20 sensors 22 microprocessors 24

Wireless module 26 batteries 28

Primary controller 30

Joystick controller 40

The specific embodiment

At first, please refer to Fig. 1 to Fig. 3, the utility model is a kind of pedal force sensing system of electric booster bicycle, it is installed in the car body 10 of a bicycle, and car body 10 includes driver's frame 11, a Front fork vibration abatement device 12, a battery 13, a CD-ROM drive motor 15, one sufficient transmission device 17 and the shelf 19 stepped on; Wherein, Front fork vibration abatement device 12 has the function of automatic compensation shock-absorbing stroke, that is Front fork vibration abatement device 12 is to adjust stroke according to road surface degree of dip or road conditions, and it is to can be hydraulic type or vapour-pressure type Shock absorber; Battery 13 is the belows that are installed in shelf 19, in order to provide bicycle required electric power; And foot is stepped on the bottom that transmission device 17 is installed in car body 10, and it has one first pedal 171 and one second pedal 173 is trampled for the user, and drives one by sufficient legpower and step on arbor (figure does not show) rotation, and to step on arbor be the compound gear cluster 175 of concentric; By this, when the user tramples, step on arbor and be and bear sufficient legpower and rotate, then by advancing by bicycle by gear cluster 175 transmission forces; Wherein, gear cluster 175 is the Variable speed fluted disc group of multilayer in present embodiment, its include the before driving wheels with after driven wheels, it also can be all single layer fluted disc certainly.

This pedal force sensing system then includes two legpower sensing groups 20, a primary controller 30 and a joystick controller 40.

Each legpower sensing group 20 is to be installed in first pedal 171 and second pedal 173 that foot is stepped on transmission device 17, it has several sensors 22, one microprocessor 24, one wireless module 26 and a battery 28, each sensor 22 is the tow sides (being that the user tramples face) that respectively are embedded in first pedal 171 and second pedal 173, but it is sensing user's sufficient legpower and is sent to microprocessor 24, microprocessor 24 becomes sufficient legpower sensing signal with the signal conversion treatment that receives, and then be sent to wireless module 26, and battery 28 provides the required electric power of legpower sensing group 20, and it is to can be electric power such as general battery combination or rechargeable battery module is provided; Wherein microprocessor 24 is to be combined into same modular assembly with modular design with wireless module 26.

Primary controller 30 and joystick controller 40 are arranged at below and driver's frame 11 of battery 13 respectively, primary controller 30 is to be electrically connected at joystick controller 40, Front fork vibration abatement device 12, battery 13 and CD-ROM drive motor 15, its inside is provided with a receiver module (figure does not show), be to receive the sufficient legpower sensing signal that the wireless module 26 of each legpower sensing group 20 is transmitted, primary controller 30 rotation that comes controlling and driving motor 15 according to sufficient legpower sensing signal again then, and the data of advancing of will being correlated with are sent to joystick controller 40, joystick controller 40 is to have a display module (figure do not show), can show that each data watches for the user.

By by above-mentioned member, when the user drives this electric booster bicycle, user's sufficient legpower will apply pressure to each sensor 22 of legpower sensing group 20, the wireless module 26 of legpower sensing group 20 is sent to sufficient legpower sensing signal the receiver module of primary controller 30 with wireless communication mode then, by controlling that primary controller 30 carries out that bicycle advances, can finish application of the present utility model again; And the utility model is the power-assisted control system in general electric booster bicycle of can further arranging in pairs or groups, that is pass through by the measured signal of the utility model, cooperate the inner setting of primary controller 30 or user's setting, and the may command CD-ROM drive motor 15 required power-assisted sizes that provide.

Preferable, the sufficient legpower sensing signal that primary controller 30 also can be returned according to legpower sensing group 20, control the shock-absorbing stroke of Front fork vibration abatement device 12, promptly when the user drives bicycle in upward slope, it must apply bigger sufficient legpower, then this moment, primary controller 30 was except making the bigger power-assisted of CD-ROM drive motor 15 supplies, primary controller 30 also can be with the shock-absorbing stroke deadlock of Front fork vibration abatement device 12, to avoid trampling the reduction of efficient, when road conditions were relatively poor, 30 of primary controllers were adjusted Front fork vibration abatement device 12 and are had bigger shock-absorbing stroke; And in addition explanation be, present embodiment is with Front fork vibration abatement device 12 as an illustration, the utility model also can be applicable to the control of the Shock absorber of other kind certainly.

Wherein, when user's both feet do not apply any pressure in each sensor 22, that is user's both feet are to put down gently to step on first of transmission device 17 in foot and step on version during 171 and second pedal 172, primary controller 30 can stop CD-ROM drive motor 15, even when the user does not trample both feet in each sensor 22 because of burst accident, the utility model also can reach the design function of safety switch, and allows electric booster bicycle cut off the power supply immediately; Therefore, the utility model is by sensing mode and installation position by improvement legpower sensing group 20, be to allow the sufficient legpower sensing of electric booster bicycle certain more, and be installed on first pedal 171 and second pedal 173 also simpler and easy, and wireless transmission method also can reduce the electric wire number of bicycle assembling, and it is convenient to allow maintenance go up.

Except previous embodiment, the utility model also can change as follows:

At first, legpower sensing group 20 is to be installed on first pedal 171 or second pedal 172 that foot is stepped on transmission device 17 monolaterally, but each sensor 22 also is installed on the front or the reverse side of first pedal 171 or second pedal 172 single face certainly, but and sensing user's sufficient legpower similarly, and then can reduce cost of installation.

In addition, legpower sensing group 20 also can be electrically connected to primary controller 30, and transmit sufficient legpower sensing signal with the lead type of transmission, by this, legpower sensing group 20 is directly to be powered by the battery 13 of bicycle, so can omit wireless module 26 and battery 28, and allow whole cost of the present utility model reduce.

Concluding above-mentioned explanation can learn, use the utility model on electric booster bicycle, be to make the sensing of sufficient legpower more certain, and the utility model also can serve as safety switch, further improve the degree of safety that drives, and the utility model then can reduce the electric wire number of bicycle assembling when adopting wireless communication mode, is to allow the bicycle maintenance go up convenient.

Last institute is old, and the utility model is taken off disclosed constituent components among the embodiment in preceding, only be casehistory, is not the scope that is used for limiting this case, the alternative or variation of other equivalent elements, and the claim that also should be this case contains.

Claims

1. the pedal force sensing system of an electric booster bicycle, be installed in an electric booster bicycle, this bicycle includes a car body, at least one Shock absorber, a battery, a CD-ROM drive motor and a foot and steps on transmission device, this Shock absorber has the function of automatic compensation shock-absorbing stroke, and this foot is stepped on transmission device and is had one first pedal and one second pedal, be to bear the foot strength of stepping on and drive one and step on arbor and rotate, a gear cluster is compound in this and steps on arbor, and coaxial heart is rotated; It is characterized in that this pedal force sensing system includes:

One legpower sensing group has several sensing members, is installed in first pedal that this foot is stepped on transmission device, to record the sufficient legpower that this first pedal is born;

One primary controller is electrically connected at this battery and this CD-ROM drive motor, and receives the sufficient legpower sensing signal of this legpower sensing group, and then controls the rotation of this CD-ROM drive motor according to sufficient legpower sensing signal.

2. according to the pedal force sensing system of the described electric booster bicycle of claim 1, it is characterized in that: each sensing member of this legpower sensing group is front, reverse side or the tow sides that are installed in this first pedal.

3. according to the pedal force sensing system of the described electric booster bicycle of claim 1, it is characterized in that: also comprising another legpower sensing group, is to be installed in second pedal that this foot is stepped on transmission device.

4. according to the pedal force sensing system of the described electric booster bicycle of claim 3, it is characterized in that: each sensing member of this legpower sensing group is front, reverse side or the tow sides that are installed in this two pedal.

5. according to the pedal force sensing system of the described electric booster bicycle of claim 1, it is characterized in that: this primary controller is electrically connected at this Shock absorber, and this primary controller is a shock-absorbing stroke of adjusting this Shock absorber according to sufficient legpower sensing signal.

6. according to the pedal force sensing system of the described electric booster bicycle of claim 1, it is characterized in that: this legpower sensing group is to transmit sufficient legpower sensing signal to this primary controller with wireless communication mode.

7. according to the pedal force sensing system of the described electric booster bicycle of claim 1, it is characterized in that: this legpower sensing group also has a microprocessor, is electrically connected at respectively this sensing member, and produces sufficient legpower sensing signal according to the sensing of this sensing member respectively.

8. according to the pedal force sensing system of the described electric booster bicycle of claim 7, it is characterized in that: this legpower sensing group also has a wireless module, is to be electrically connected at this microprocessor, and sufficient legpower sensing signal is sent to this primary controller.

9. according to the pedal force sensing system of the described electric booster bicycle of claim 8, it is characterized in that: this primary controller has a receiver module, is to receive the sufficient legpower sensing signal that this wireless module sent.

10. according to the pedal force sensing system of the described electric booster bicycle of claim 8, it is characterized in that: this legpower sensing group also has a battery, is to be electrically connected at this wireless module, to provide this legpower sensing group required electric power.

11. the pedal force sensing system according to the described electric booster bicycle of claim 1 is characterized in that: also comprise a joystick controller, be electrically connected at this primary controller, to show the various driving data of this bicycle.