Moving apparatus with drive power assisting device and movement controlling method

• US 6,247,548 B1
• Filed: 05/21/1998
• Issued: 06/19/2001
• Est. Priority Date: 05/24/1996
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Itoh, Hiroyuki, Hayashi, Toshiro, Sato, Naomasa, Katagiri, Ichiro, Hayashi, Hiroyoshi, Endo, Tetsuo, Nanae, Yuichi
• Primary Examiner(s): VANAMAN, FRANK BENNETT
• Application Number:
  US09/000,030
• Time in Patent Office: 1,125 Days
• Field of Search: 180/65.1, 180/65.2, 180/65.5, 180/170, 180/907, 180/205, 180/206, 180/207, 180/220
• US Class Current: 180/206.2
• CPC Class Codes: B60L 2200/12 Bikes
• CPC Class Codes: B60L 2240/36 Temperature of vehicle components or parts
• CPC Class Codes: B60L 50/20 using propulsion power generated by humans or animals
• CPC Class Codes: B60L 50/53 in combination with an external power supply, e.g. from overhead contact lines
• CPC Class Codes: B60L 58/25 by controlling the electric load
• CPC Class Codes: B62M 6/45 Control or actuating devices therefor
• CPC Class Codes: B62M 6/50 characterised by detectors or sensors, or arrangement thereof
• CPC Class Codes: B62M 6/65 with axle and driving shaft arranged coaxially
• CPC Class Codes: G01R 31/36 Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
• CPC Class Codes: H02J 7/1415 with a generator driven by a prime mover other than the motor of a vehicle
• CPC Class Codes: H02K 21/22 with magnets rotating around the armatures, e.g. flywheel magnetos
• CPC Class Codes: H02K 29/10 using light effect devices
• CPC Class Codes: H02K 7/14 Structural association with mechanical loads, e.g. with hand-held machine tools or fans with fan or impeller for cooling the machine H02K9/06
• CPC Class Codes: H02M 7/00 Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y10T 428/249923 Including interlaminar mechanical fastener

Abstract

A moving apparatus with a driving force assist mechanism traveled mainly by human power. This moving apparatus detects, in a non-contact manner, with respect to rotating portion such as traveling wheel, etc., rotation speed of the rotating portion to detect traveling state to deliver, from the driving force assist mechanism, assistant driving force corresponding to speed change information that a person who operates the moving apparatus intends to give on the basis of the detected traveling information to carry out traveling to thereby permit smooth traveling even in the case where traveling by only human power becomes difficult.

Claims

1. A moving apparatus provided with a driving force assist unit for additionally applying driving force to a drive wheel depending upon traveling information of the moving apparatus;

the moving apparatus comprising;

traveling information detecting means for detecting, in a non-contact manner, with respect to a rotating portion, the rotational speed of the rotating portion to detect the traveling information of the moving apparatus;

driving force assist means for applying to the drive wheel a driving force corresponding to a change in speed information which is detected on the basis of traveling information detected by the traveling information detecting means;

inclination detecting means for detecting inclination information of the moving apparatus;

constant speed detecting means for determining a constant speed traveling driving force required for maintaining a constant traveling speed on the basis of speed information detected by the traveling information detecting means and inclination information detected by the inclination detecting means;

acceleration detecting means for determining an acceleration driving force corresponding to the change in speed information which is detected on the basis of traveling information detected by the traveling information detecting means; and

assistant driving force detecting means for determining an assistant driving force which is to be delivered by the driving force assist means on the basis of the constant speed traveling driving force determined by the constant speed detecting means and the acceleration driving force determined by the acceleration detecting means;

an electric power source for supplying electric power to the driving force assist means.

2. A moving apparatus as set forth in claim 1, and further comprising

a brake mechanism for braking the moving apparatus, whereby when the brake mechanism is operated, the supply of electric power to the driving force assist means is stopped.

3. A moving apparatus as set forth in claim 1, and further comprising

a rotational operation portion adapted to be operated by a driver, and

said drive wheel is adapted so that when a rotation force of the rotational operation portion is transmitted thereto the drive wheel is rotated,

whereby when the rotational speed of the drive wheel and the rotational speed of the rotational operation portion are synchronized with each other, or when the rotational speed of the rotational operation portion is greater than the synchronized rotational speed of the drive wheel, the driving force assist is carried out.

4. A moving apparatus as set forth in claim 1,

wherein the electric power source is a chargeable battery.

5. A moving apparatus as set forth in claim 1,

wherein when the drive wheel receives an external force, the driving force assist means functions as an electromagnetic brake.

6. A movement control method for a moving apparatus provided with a manually-operated drive wheel, and a driving force assist unit for additionally applying driving force to the drive wheel depending upon traveling information,

the movement control method comprising the steps of:

detecting, in a non-contact manner, with respect to a rotating portion, the rotational speed of the rotating portion to detect the traveling information of the moving apparatus;

detecting a driving force corresponding to a change in speed information which is detected on the basis of the detected traveling information;

applying the detected driving force to the drive wheel from the driving force assist means driven by an electric power source;

detecting inclination information of the moving apparatus by inclination detecting means;

determining a constant speed driving force required for maintaining a constant traveling speed by means of a constant speed detecting means on the basis of the change in speed information detected by the traveling information detecting means and inclination information detected by the inclination detecting means,

determining an acceleration traveling driving force corresponding to speed change information by an acceleration detecting means which is detected on the basis of traveling information detected by the traveling information detecting means, and

determining an assistant driving force by means of an assistant driving force detecting means to be delivered by the driving force assist means on the basis of the constant speed traveling driving force determined by the constant speed detecting means and the acceleration driving force determined by the acceleration detecting means.

7. A moving apparatus comprising:

a manually operated drive wheel;

an electric motor for additionally applying driving force to the drive wheel in addition to human power depending upon traveling information of the moving apparatus,

traveling information detecting means for detecting, in a non-contact manner, with respect to a rotating portion the rotational speed of the rotating portion to detect the traveling information of the moving apparatus,

driving force assist means for applying to the drive wheel a driving force corresponding to a change in speed information which is detected on the basis of traveling information detected by the traveling information detecting means;

an electric power source for supplying electric power to the driving force assist means;

inclination detecting means for detecting inclination information of the moving apparatus,

constant speed detecting means for determining a constant speed traveling driving force required for maintaining a constant traveling speed on the basis of the change in speed information detected by the traveling information detecting means and inclination information detected by the inclination detecting means,

acceleration detecting means for determining an acceleration traveling driving force corresponding to speed change information which is detected on the basis of traveling information of the moving apparatus detected by the traveling information detecting means, and

assistant driving force detecting means for determining a assistant driving force which is to be delivered by the driving force assist means on the basis of the constant speed traveling driving force determined by the constant speed detecting means and the acceleration driving force determined by the acceleration detecting means;

a chargeable battery for driving the electric motor; and

a remaining traveling distance display unit for detecting the voltage of the battery to detect the remaining capacity of the battery to display the remaining traveling distance of the moving apparatus on the basis of the detected remaining capacity.

8. A moving apparatus as set forth in claim 7,

wherein the battery is detachably provided along with the remaining traveling distance display unit.

9. A moving apparatus provided with a drive wheel comprising:

a manually-operated wheel;

an electric motor for additionally applying a driving force to the drive wheel depending upon traveling information of the moving apparatus;

an electric power source for driving the electric motor;

traveling information detecting means for detecting, in a non-contact manner, with respect to a rotating portion, the rotational speed of the rotating portion to detect the traveling information of the moving apparatus,

driving force assist means for applying to the drive wheel a driving force corresponding to a change in speed information which is detected on the basis of traveling information detected by the traveling information detecting means;

an electric power source for supplying electric power to the driving force assist means;

inclination detecting means for detecting inclination information of the moving apparatus,

constant speed detecting means for determining a constant speed traveling driving force required for maintaining a constant traveling speed on the basis of the change in speed information detected by the traveling information detecting means and inclination information detected by the inclination detecting means,

acceleration detecting means for determining acceleration traveling driving force corresponding to speed change information which is detected on the basis of traveling information of the moving apparatus detected by the traveling information detecting means, and

assistant driving force detecting means for determining a assistant driving force which is to be delivered by the driving force assist means on the basis of the constant speed traveling driving force determined by the constant speed detecting means and the acceleration driving force determined by the acceleration detecting means; and

function switching control means wherein when the road surface on which the moving apparatus moves requires an assist to the driving force for moving the moving apparatus, said function switching control means drives the electric motor, and when the road surface on which the moving apparatus moves does not require an assistant driving force for moving the moving apparatus, said function switching control means allows the electric motor to function as a generator.

10. A moving apparatus as set forth in claim 9,

wherein where the road surface is up hill an assistant driving force for moving the moving apparatus is required, and where the road surface is generally flat or downhill an assistant driving force for moving the moving apparatus is not required.