CN1921917A - Electric toy vehicle with improved grip - Google Patents
Electric toy vehicle with improved grip Download PDFInfo
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- CN1921917A CN1921917A CNA200480040979XA CN200480040979A CN1921917A CN 1921917 A CN1921917 A CN 1921917A CN A200480040979X A CNA200480040979X A CN A200480040979XA CN 200480040979 A CN200480040979 A CN 200480040979A CN 1921917 A CN1921917 A CN 1921917A
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- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 7
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Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
- A63H17/26—Details; Accessories
- A63H17/262—Chassis; Wheel mountings; Wheels; Axles; Suspensions; Fitting body portions to chassis
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H29/00—Drive mechanisms for toys in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/10—Indicating wheel slip ; Correction of wheel slip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/20—Vehicles specially adapted for children, e.g. toy vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Toys (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
An electric toy vehicle is described, said vehicle comprising: an electric motor (1), a speed reducer (3), a power supply battery (2) for powering said electric motor and moving the vehicle, and at least two wheels (4, 5), at least one of which is the driving wheel, at least one of the wheels having a coefficient of friction greater than about 0.35. Conveniently, the wheels of the vehicle comprise a rubber carcass with at least two cross plies of nylon threads. Conveniently, the vehicle also comprises an electronic control system for performing a plurality of functions including that of regulating the power supply voltage to the motor, regulating the acceleration independently of the load transported; regulating the deceleration independently of the load transported; managing the motor brake; controlling the direct-current flow, preventing peak currents affecting the motor, disabling the functions of the vehicle at predefined overload values; limiting complete discharging of the battery and indicating the charging state of the battery.
Description
The present invention relates to the electric toy car field, this toy car is generally used for delivering children when recreation.Especially, the present invention relates to such electric motor car, because driving wheel improved adhesive force on rolling surface, it has lot of advantages.
For many years, known multiple with the reduce in scale replicar, motorcycle, the electric toy car of motor scooter etc.These known vehicles comprise at least two wheels, seat (perhaps being vehicle seat under the situation of motor scooter and motorcycle) and metal or plastics vehicle frame.
Vehicle on the market consists essentially of three types.First type is single-speed vehicle, comprising: two or more blown high-density polyethylene (HDPE) wheel, motor, decelerator, wiring system and 6V power-supply battery.Second type for having the vehicle that surpasses a kind of speed, comprises two or more blowing HDPE wheels, and two motor, two corresponding decelerators, wiring system, 12V power-supply battery and being used to slow down and prevent the thermistor of possible overload.The third type is for being the vehicle that has above a kind of speed, comprise two or more blowing HDPE wheels, two motor, two decelerators, wiring system, two 6V power-supply batterys are for control rate is used for the system that serial or parallel connection connects the adapter of battery and is used for transshipping by inductance control.
Known in market to obtain the having model that surpasses two driving wheels, it adopts the motor/reducer of respective numbers.
The applicant recognizes that the electric toy car of known type has various shortcomings and limitation.
As for two fast vehicles, be noted that in second type vehicle, it is equipped with the 12V battery, speed is controlled by thermistor, and this causes power attenuation.But in the vehicle of the third type, speed is controlled by adapter, and it allows to adopt two batteries, according to the speed setting, is 6V or 12V.Reach a conclusion thus, actual power consumption is strictly relevant with the speed of service.Also must be pointed out, if, in second type vehicle, because the management system that is adopted, accurately autonomous operation is restricted, and in the vehicle of the third type, the scheme that solves the same problem that is adopted is owing to adopt two batteries and more complicated wiring system to cause cost to increase.
The applicant determined, known electric toy car is being placed on abundant smooth surface (for example marble floor, tile floor etc.), and in the time of on moist surface (lawn) or the similar surfaces, having very poor adhesive force even adhesive force is zero.As a result, known vehicles, unusual difficulty when stand is started, and under any circumstance, be difficult to keep the turning path of driver's expectation.
The applicant is also noted that the wheel of known vehicles, and its rigidity plastics by inner hollow is made, and in the vehicle movement process, especially in enclosed environment, its effect resembles an audio amplifier, amplifies noise.As a result, the use noise of electric toy car is big especially, is being airtight or under any encapsulation situations around the environment of this car basically particularly.
And the applicant has been found that the wheel of these vehicles, is rigidity basically, and transmission is impacted and jolted by rough earth the time, and has limited driver comfort widely.
In addition, the tractive force that obtains by the wheel that adopts single electric motor and use at present causes multiple difficulty.And, can produce the quick and uneven wearing and tearing of high power consumption and wheel.
Any the effort that a plurality of decelerators and a plurality of battery overcome the problems referred to above all can realize improving by adopting a plurality of motor, and independence descends and product cost increases but can cause simultaneously operating.If by using two motor to obtain vehicle towed power, then the problem of adhesive force can increase, this is because when vehicle carries out divertical motion, because in two motor of frictional force bears braking action.As a result, its residual adherence of vehicle loses does not keep turning path and radius of curvature to increase.This causes vehicle to use possibility to be restricted in inappropriate environment, also causes being difficult to reverse travel direction.Thereby as recurrent, if when known vehicles is used in enclosure space, they not only can be subjected to the too early effect of attrition of wheel, and motor and battery can bear the needs that continuous braking and direction continuously change and the stress that causes especially.
Contradiction be that when the basic structure of rolling surface can provide good adhesive force (for example, soft rubber surfaces, carpet or homologue), under the situation that adopts known vehicles, starting and shut-down operation meeting are very unexpected, fiercely with " unpredictable ".In fact, power supply (is compared with the situation that the adhesive force of wheel trend rotation is relatively poor) suddenly (or interruption) is provided, and the driver is not ready to these unexpected acceleration or deceleration situation.Because this reason, the driver has the danger with the vehicle part bump, particularly with instrument board and steering wheel, has the danger of wounding.
The applicant has been noted that above-mentioned limitation, and has set the target of oneself, and a kind of improved electric toy car promptly is provided, it is compared with the vehicle of existing same type, safer, more comfortable, keep lower cost (compare with the cost of existing vehicle even lower) simultaneously.
These targets and other target by having feature described in the claim 1 electric toy car and realize according to the system that is used to control electric toy car of claim 20.Dependent claims describes other advantage of the present invention in detail.All claim is considered to form an intact part of the present invention.
According to first aspect, the present invention relates to a kind of electric toy car, comprise: motor, decelerator is used for power-supply battery and at least two wheels to described motor power supply and moving vehicle, at least one wheel is a driving wheel, it is characterized in that at least one wheel has greater than about 0.35, be preferably more than approximately 0.5, more preferably be in about 0.5 coefficient of friction to about 3.0 scopes.
Easily, described at least one have greater than about 0.35, be preferably more than approximately 0.5, more preferably being in about 0.5 the wheel of coefficient of friction to about 3.0 scopes is driving wheel.
Preferably, described at least one have greater than about 0.35, be preferably more than approximately 0.5, more preferably be in about 0.5 the wheel of coefficient of friction to about 3.0 scopes and comprise wheel rim and tire, wherein said tire is the tire that comprises rubber tyre body.
Easily, described rubber tyre body comprises two cross plies.
Preferably, described cross-ply comprises the cord of being made by nylon or analog.
Preferably, described tire comprises the tyre surface with protruding pattern.
Preferably, the thickness of carcass in sidewall areas is in about 1.0mm to 4.5mm scope, more preferably is in about 2.0mm to 3.8mm scope, more preferably is in about 2.5mm to about 3.3mm scope.
According to preferred embodiment, described tire has with the 10.00 * 5.00-5 that represents of inch " 1/2 (correspondingly, the 260 * 120-5 that represents with mm " 1/2) size.According to another embodiment, described tire has 13 * 6.00-7 " (correspondingly, size of the 330 * 150-7 that represents with mm ") of representing with inch.According to another embodiment, described tire has with the 15 * 7.00-8 that represents of inch " 1/2 (correspondingly, the 380 * 180-8 that represents with mm " 1/2) size.
Preferably, described at least one have greater than about 0.35, be preferably more than approximately 0.5, more preferably be in about 0.5 the wheel of coefficient of friction to about 3.0 scopes and comprise the inner tube of a tyre and relevant valve.
According to an embodiment, described vehicle comprises electronic control system, it typically is an electronic circuit board, is designed to regulate the supply voltage that offers motor, for example by potentiometer or similar device.
Easily, described electronic control system also comprises and being used for according to the suitable acceleration gradient, regulates the device of acceleration with the predetermined way that is totally independent of the vehicle transport load.
Easily, described electronic control system also comprises the deceleration ramp that is used for according to suitable, regulates the device of deceleration with the predetermined way that is totally independent of the vehicle transport load.
Easily, described electronic control system also comprises the short-circuiting means that is used to control the motor brake function.
Easily, described Electronic Control also comprises and is used to control DC current and prevents that current peak from influencing the device of motor, for example when starting and commutation.
Easily, described electronic control system also comprises and can forbid the device of vehicle functions in predetermined overload values, thereby avoids, and for example overcomes unsuccessful trial such as the obstacle of wall by vehicle.
Easily, described electronic control system also comprises and is used to limit the device that power-supply battery discharges fully.
Easily, described electronic control system comprises that also the process that is used for charging again at battery forbids the device of vehicle functions electronically.
Easily, described electronic control system also comprises the device that is used for indicating battery charged state, for example by display or homologue.
The scheme that adopted allows the optimum of vehicle resources to use and uses about the maximum of autonomous operation, and for example wiring system is used for function of supplying power and adopts cross section to be approximately 2.5mm
2Lead, be kept to about 0.5mm and be used for the semiotic function conductive wire cross-section
2
The reference example accompanying drawing, according to the detailed description that provides below by non-limiting example, the present invention will become apparent, in the accompanying drawing:
-Fig. 1 represents to have a kind of layout drawing of electronic toy vehicle transmission device of first kind of known type of speed;
-Fig. 2 represents to have the layout drawing of the electronic toy vehicle transmission device of the second kind of known type that surpasses a kind of speed;
-Fig. 3 represents to have the layout drawing of the electronic toy vehicle transmission device of the third known type that surpasses a kind of speed;
-Fig. 4 represents the layout drawing according to electronic toy vehicle transmission device of the present invention;
-Fig. 5 a and 5b represent by tire and the sectional view that is used for the known tyre of agricultural use according to the present invention;
-Fig. 6 schematically shows according to electronic control system of the present invention.
Identical Reference numeral is used for identical parts and the parts that presentation function equates.
Fig. 1, three kinds of known type electric toy car transmission arrangements figure of 2 and 3 expressions.First layout drawing is used in the toy car of recommending child's use usually.The second and the 3rd layout drawing is used in the toy car that allows the one or more passengers of transportation usually.In this regard, hereinafter clarifying term " electric toy car " (or equivalent terms) is construed as expression and anyly has two, the vehicle of three or four (or more) wheels of great use, it is by 6V (perhaps 12 or 24V) powered by direct current, recommends to be used for the age to be in children's (depending on model and drive system) between about 2 years old and 10 years old.
Layout drawing according to Fig. 1 has the motor 1 of being powered by (6V) battery 2, with the decelerator 3 (representing with decomposition view) that links to each other with wheel 4 (driving wheel).Wheel 4 and 5 is made by HDPE, and at room temperature, measures according to standard A STM D1894 " standard method of test that is used for plastic foil and the sheet confficient of static friction and the coefficient of kinetic friction ", has the coefficient of friction in 0.08 to 0.2 scope.Also represent pedal-operated switch P and be used to reverse the device 1 of travel direction according to the layout drawing of Fig. 1.
Have two motor 1 according to the layout drawing of Fig. 2, with two corresponding decelerators 3 (representing) that link to each other with 5 with wheel 4 respectively with decomposition view by 2 power supplies of single (12V) battery.Wheel 4 and 5 is made by HDPE, and at room temperature, measures according to standard A STM D1894, has the coefficient of friction in 0.08 to 0.2 scope.Layout drawing according to Fig. 2 is also represented pedal-operated switch P, be used to reverse travel direction device 1 and be used for the selector of gear shift.
Have two motor 1 according to the layout drawing of Fig. 3, with two corresponding decelerators 3 (dexter decelerator is represented with decomposition view) that link to each other with 5 with wheel 4 respectively by 2 power supplies of two corresponding (6V) batteries.Wheel 4 and 5 is made by HDPE, and at room temperature, measures according to standard A STM D1894, has the coefficient of friction in 0.08 to 0.2 scope.Layout drawing according to Fig. 3 is also represented pedal-operated switch P, be used to reverse travel direction device 1 and be used for the selector M of gear shift.Selector M also comprises for control rate, is used for the adapter that serial or parallel connection connects battery.Layout drawing according to Fig. 3 also comprises the device 6 that is used for by inductance control overload.
According to Fig. 1,2 and 3 layout drawing all has problem and the restriction of listing in this explanation overview section.
According to electric toy car transmission arrangements figure of the present invention as shown in Figure 4.
Arrangement according to the invention figure comprises motor 11, is used for transmitting the decelerator 13 of motion to (12V) battery 12 of motor 11 power supplies with to wheel 14.Different with known layouts, at least the wheel 14 that links to each other with decelerator (but preferably other wheel 15 of vehicle also) is fully soft, and have coefficient of friction, be preferably more than approximately 0.5, and more preferably be in about 0.5 to about 3.0 scopes greater than about 0.35.The special-purpose that depends on vehicle, especially, coefficient of friction can be in about 0.5 to 1.0 scope, in about 1.0 to 1.5 scopes, in about 1.5 to 2.0 scopes, in about 2.0 to 2.5 scopes, or in about 2.5 to 3.0 scopes.Also can use coefficient of friction greater than 3.0 tire, when particularly on smooth especially surface, using vehicle.
Fig. 5 a represents the cross section by a wheel 14 tires 141 embodiment according to the present invention by way of example.Tire 5a has 10.00 * 5.00-5 " 1/2 size (correspondingly, be expressed as 260 * 120-5 with mm " 1/2).First digit is represented external diameter, and second digit is represented cross section, and third digit is represented usually with an inch installation diameter of representing.Fig. 5 b alternatively represents the cross section by obtainable agricultural use tire on market, produces with trade (brand) name " DURO " according to the tire of Fig. 5 b, and has 11 * 4.00-5 " size.Tire 141 according to the present invention comprises carcass and two sidewalls that finish at the respective bead place.Preferably, this tire also comprises having the radially tyre surface of projecting block and groove, so that vehicle has bigger adhesive force.Carcass is made of two-layer cross-cord layer.Preferably, cord is weaving or nylon cord, and the density that cord is arranged to density and bicycle tyre or similar tire is close.Fig. 5 a and 5b represent some significant dimensions of two kinds of tires of comparing.Especially, be approximately 3mm according to the tire of Fig. 5 a along the carcass thickness of sidewall, and be approximately 7mm among Fig. 5 b.
The record weight of known tyre (Fig. 5 b) is approximately 1.875kg, and according to the present invention tire (Fig. 5 weight a) approximates 0.85kg greatly less than half of known tyre weight.Therefore, the vehicle of more having represented to be equipped with the tire according to the present invention is lighter, and than the known tyre that similarly is used for agricultural use more economically.Lightweight characteristics are extremely important, because in order to have acceptable performance characteristics and restrictions motor and by the power of battery consumption, electric toy car must be in light weight.Economical characters is also extremely important in such vehicle, mainly is owing to save elastomeric material (reducing carcass thickness) and correspondingly shorten cure time.
According to preferred embodiment, each tire 141,151 for example is contained in by plastics, on synthetic material or the metal wheel rim 143,153, has inner tube of a tyre (not shown).According to alternate embodiment, tire 141,151 is the tubeless type, does not promptly have the inner tube of a tyre.This second embodiment needs higher precision when the processing wheel rim, thereby preferred rank is lower.
Vehicle mounting is had greater than about 0.35, be preferably more than approximately 0.5, more preferably be in about 0.5 driving wheel and make it possible to overcome fully above-mentioned all problems of the prior art to about 3.0 scope coefficients of internal friction.At first, vehicle according to the invention is easier to from static starting and is easier to keep turning path along the driver.Also solved and the relevant problem of the noise of wheel on rolling surface.In addition, owing to compare with the known vehicles rigid wheel, the flexibility of tire makes driving comfort improve greatly.
In fact Tyte Wear can be ignored, and under any circumstance roughly even, and does not need to use two independent motor.
According to particularly advantageous embodiment, motor 11 is by special control system 117 controls.
Adopt single electronically controlled motor, and employing has greater than about 0.35, be preferably more than approximately 0.5, more preferably be in about 0.5 and improved the cornering ability of vehicle greatly to the tire of about 3.0 scope coefficients of internal friction, and it also can be used in the space of relative closure.In fact, the applicant has been noted that with known electric toy car and compares that minimum turning radius significantly reduces, and promptly becomes about 0.5-1.5m (according to similar vehicle of the present invention) from about 2.0-3.0m (known carriage).
According to first aspect, control system 17 can be regulated the supply voltage that offers motor, thereby regulates the speed of a motor vehicle.Electronic control system 17 preferably is made of electronic power and signal plate.
As schematically showing among Fig. 4, one or more cooperation the in control system 17 and the following array apparatus: the pedal-type switch P, key operated switch C is used for the device 1 of backward going, the selector M that is used for gear shift, audio unit A (loudspeaker or analog), the display VB that is used to charge the battery, one or more illuminating lamps (left front " LA SX ", right front " LA DX ", left back " LP SX ", right back " LP DX ") and be used for the socket of battery recharge.Easily, electronic control system 17 can be designed so that motor receives the predetermined portions that battery can provide maximum voltage.For example, if the maximum voltage that battery can provide is 12V, then electronic control system can be designed so that to provide to motor the voltage of the 3V of first, the voltage of second portion 6V, the voltage of the voltage of third part 9V or whole 12V.
Providing of these voltage segments can be controlled by driver (children), can be factory set, can maybe can be the combination of above-mentioned option by adult's decision.In first kind of situation, children can the operating speed selector, and freely selects the speed of suitable environment.In second kind of situation, the maximal rate (this means,, can build electric toy car) of every type of manufacturer's decision or kind vehicle for unskilled children or for a little bigger slightly children though keep same parts.Alternatively, the decision by the adult is set, can't provides a first selector in approaching zone children, and if needed, the second selector that provides a children/driver to operate.This scheme is very favourable, because it makes the adult set the maximum allowable velocity of vehicle according to children's age and practical capacity.
Preferably, described electronic control system 17 is designed to so so that the predetermined acceleration ramp 171 that is independent of vehicle transport load to be provided.Fig. 6 represents the embodiment of acceleration ramp 171 and deceleration ramp 172.Fig. 6 also represents to reverse running gradient 173.According to the present invention, reach the maximal rate (reaching the quantity of 8-10km/h) of electric toy car at the fixed time behind the interval (reaching the quantity of 3-4km/h).According to the gradient shown in Fig. 6, with 1 grade, the acceleration of 2 grades or 3 grades startings is identical with the acceleration of 4 grades of startings (selector is positioned at position 4) and vehicle for electric toy car, and difference is the maximal rate that further gear shift can reach.Decelerating phase is adopted identical principle.
Under any circumstance, the acceleration of vehicle or deceleration and traffic load are irrelevant according to the present invention.This has solved problem very common in known electric motor car, and promptly weight (thereby being less more unskilled children) is more little, and to influence vehicle driver's twisting effect big more thereby influence vehicle.
In addition, help vehicle to stop by electronic control system in conjunction with the motor brake effect that tire adhesion force provides according to the present invention, owing to stop to expect with controlled, take place with the mode of safety, thereby can not cause the uncomfortable sensation of driver intrinsic in known vehicles.
In addition, electronic control system allows in start-up operation and inversion process, control to the voltage that motor provides, prevents that motor from bearing not controlled discharge (spark between brush and the collector ring, it causes the motor wearing and tearing) and consequent pressure causes battery life to shorten by power supply.
In addition, electronic circuit board has been fixed the overload values (for example vehicle overcomes obstacles) of motor, the wearing and tearing of protecting it to avoid the stress influence that causes owing to the operation of not expecting and be forced to swivel wheel in static starting process.
According to preferred embodiment, electronic control system 17 provides the closed-loop speed Electronic Control, not influenced by payload, keeps constant predetermined speed under any driving conditions, for example on the level land, when upward slope or descending.According to the present invention, sensor inspection vehicle wheel speed also is transferred to wiring board with detected rotating speed.Wiring board with predetermined speed and detection speed relatively, and it provides: a) bigger energy, if relatively cause negative value (upward slope); B) littler energy is if relatively cause on the occasion of (descending).
Under the minus situation of requirement energy (vehicle descends along the abrupt slope), motor is as generator, and it is converted into electric current.Utilize this effect to make motor, and it is as consuming braking by electric bypass (seeing joint 19).
This causes safer vehicle (consuming braking when descending on the abrupt slope) and more effective power management (power consumption strictly depends on the type of track).
In order to regulate the friction speed of vehicle, an electronic type magnetic selection device is provided, described selector is step by step, it is preferably regulated by mechanical switch arrangement.Mechanical switch arrangement is preferably located in (for toy car) on the shift bar or is used for the handle (for toy motorcycle or motor scooter) of set position.Speed is regulated by Magnetic Sensor, in case detected the position of shift bar (or handle), then it is passed to electronic circuit board.Electronic system is regulated maximal rate according to the gear that the user selects.
In addition, in order to prevent battery discharge, electronic control system pre-determines the Maximum Service Limit of (174) battery.This can not damage the independence of vehicle, because vehicle has only lost the unessential part of its independence thus.As a result, because battery can not discharge fully, it can charge once more fully, can not produce other problem, and the working life of power supply is compared three or four times of increases with known vehicles.Above the described electric energy that can not increase battery consumption, it is in adopting arrangement according to the invention, and is relatively low, and compares with the autonomous degree that the known layouts that comprises two motor can realize, allows bigger autonomous degree.
In addition, in the process that battery charges again, the operation of vehicle can be forbidden (for example by the socket 181 by adopting battery charger 18 simply) electronically by electronic control system 17, rather than mechanically (in known vehicles), allow the user to be perfectly safe and very simple mode is carried out the necessary operation that recharges.On the other hand, in known vehicles,, need to disconnect battery terminal in order to prevent that children from attempting to use vehicle in the battery recharge process.This operation is effort very, difficulty, but also very time-consuming, because in order to enter battery flat, it need dismantle seat or vehicle seat.
Claims (29)
1, electric toy car comprises: motor (11), decelerator (13), be used for power-supply battery (12) to described motor (11) power supply and moving vehicle, at least two wheels (14,15), at least one wheel (14) is a driving wheel, it is characterized in that at least one wheel (14) has the coefficient of friction greater than about 0.35.
2, toy car according to claim 1 is characterized in that at least one wheel (14,15) has the coefficient of friction greater than about 0.5.
3, toy car according to claim 1 is characterized in that at least one wheel (14,15) has and is in about 0.5 coefficient of friction to about 3.0 scopes.
4, require according to aforesaid right in any described toy car, it is characterized in that described at least one wheel (14,15) that has greater than about 0.35 coefficient of friction is a driving wheel.
5, according to any described toy car in the aforesaid right requirement, it is characterized in that described at least one wheel (14,15) that has greater than about 0.35 coefficient of friction comprises wheel rim (142,152) and tire (141,151), wherein said tire is the tire that comprises rubber tyre body.
6, toy car according to claim 5 is characterized in that described rubber tyre body comprises two cross plies at least.
7, toy car according to claim 6 is characterized in that described cross-ply comprises the cord of being made by nylon.
8, according to claim 5,6, or any described toy car in 7, it is characterized in that described tire (141,151) comprises tyre surface, this tyre surface has piece and the groove that forms tread contour.
9, according to claim 5,6, any described toy car in 7 or 8, it is characterized in that the thickness of carcass in sidewall areas is in about 1.0mm to 4.5mm scope, more preferably be in about 2.0mm to 3.8mm scope, more preferably be in about 2.5mm to about 3.3mm scope.
10, according to any described toy car among the claim 5-9, it is characterized in that described tire has to be in " the size in the scope that 1/2,13 * 6.00-7 " and 15 * 7.00-8 " 1/2 forms by 10.00 * 5.00-5.
11, according to any described toy car in the aforesaid right requirement, it is characterized in that it also comprises electronic circuit board (17), it is designed to regulate the supply voltage that offers motor (11), passes through potentiometer usually.
12, toy car according to claim 11 is characterized in that described electronic control system (17) also comprises to be used for according to the suitable acceleration gradient, regulates the device of acceleration with the predetermined way that is totally independent of the vehicle transport load.
13, according to any described toy car among the claim 11-12, it is characterized in that described electronic control system (17) also comprises the deceleration ramp that is used for according to suitable, regulate the device of deceleration with the predetermined way that is totally independent of the vehicle transport load.
14,, it is characterized in that described electronic control system (17) also comprises the short-circuiting means that is used to control the motor brake function according to any described toy car among the claim 11-13.
15,, it is characterized in that described Electronic Control (17) also comprises and be used to control DC current and prevent that current peak from influence the device of motor, usually in starting with when commutating according to any described toy car among the claim 11-14.
16,, it is characterized in that described electronic control system (17) also comprises the device that can forbid vehicle functions in predetermined overload values according to any described toy car among the claim 11-15.
17,, it is characterized in that described electronic control system (17) also comprises and be used to limit the device that power-supply battery (12) discharges fully according to any described toy car among the claim 11-16.
18,, it is characterized in that described electronic control system (17) also comprises the device that is used for forbidding electronically in the process that power-supply battery (12) charges again vehicle functions according to any described toy car among the claim 11-17.
19,, it is characterized in that described electronic control system (17) also comprises the device that is used for indicating battery charged state according to any described toy car among the claim 11-18.
20, the electronic control system (17) that is used for electric toy car, this car comprises: motor (11), decelerator (13), be used for power-supply battery (12) to described motor (11) power supply and moving vehicle, at least two wheels (14,15), at least one wheel (14) is a driving wheel, it is characterized in that it is designed to regulate the supply voltage that offers motor (11).
21, electronic control system according to claim 20 (17) is characterized in that it also comprises to be used for according to the suitable acceleration gradient, regulates the device of acceleration with the predetermined way that is totally independent of the vehicle transport load.
22, according to any described electronic control system (17) in claim 20 or 21, it is characterized in that it also comprises the deceleration ramp that is used for according to suitable, regulate the device of deceleration with the predetermined way that is totally independent of the vehicle transport load.
23,, it is characterized in that it also comprises the short-circuiting means that is used to control the motor brake function according to any described electronic control system (17) among the claim 20-22.
24,, it is characterized in that it also comprises and be used to control DC current and prevent that current peak from influence the device of motor, usually in starting with when commutating according to any described electronic control system (17) among the claim 20-23.
25,, it is characterized in that it also comprises the device that can forbid vehicle functions in predetermined overload values according to any described electronic control system (17) among the claim 20-24.
26,, it is characterized in that it also comprises and be used to limit the device that power-supply battery (12) discharges fully according to any described electronic control system (17) among the claim 20-25.
27,, it is characterized in that it also comprises the device that is used for forbidding electronically in the process that power-supply battery (12) charges again vehicle functions according to any described electronic control system (17) among the claim 20-26.
28,, it is characterized in that it also comprises the device that is used for indicating battery charged state according to any described electronic control system (17) among the claim 20-27.
29, be used for electric toy car wheel (14,15) tire (141,151), it is characterized in that it comprises rubber tyre body and at least one pair of cross-ply, described tire has greater than about 0.35, be preferably more than approximately 0.5, more preferably be in about 0.5 coefficient of friction to about 3.0 scopes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI2003A002577 | 2003-12-23 | ||
| IT002577A ITMI20032577A1 (en) | 2003-12-23 | 2003-12-23 | ELECTRIC TOY VEHICLE WITH IMPROVED ADHERENCE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1921917A true CN1921917A (en) | 2007-02-28 |
Family
ID=34717630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200480040979XA Pending CN1921917A (en) | 2003-12-23 | 2004-12-21 | Electric toy vehicle with improved grip |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20070128976A1 (en) |
| EP (1) | EP1699534A2 (en) |
| JP (1) | JP2007515236A (en) |
| CN (1) | CN1921917A (en) |
| AU (1) | AU2004308664A1 (en) |
| BR (1) | BRPI0418129A (en) |
| CA (1) | CA2550895A1 (en) |
| IT (1) | ITMI20032577A1 (en) |
| WO (1) | WO2005063349A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526197A (en) * | 2014-12-04 | 2015-04-22 | 张斐斐 | Wheel axle device for welding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE202007017801U1 (en) * | 2007-12-20 | 2008-03-06 | Stadlbauer Spiel- Und Freizeitartikel Gmbh | Toy vehicle with electric drive motor |
| US8678053B2 (en) * | 2009-08-25 | 2014-03-25 | Peg Perego Usa, Inc. | Toy wheel traction band |
| KR101128670B1 (en) | 2010-10-01 | 2012-03-20 | (주)헤네스 | Vehicle for children and operating method for breaking thereof |
| US8894465B2 (en) * | 2011-04-28 | 2014-11-25 | Kids Ii, Inc. | Eccentric motion toy |
| US11224820B2 (en) * | 2016-10-31 | 2022-01-18 | Lego A/S | Vehicle comprising an electric motor and a method of starting an electric motor for propulsion of a vehicle |
| US20180154945A1 (en) * | 2016-12-07 | 2018-06-07 | Texas Tech University System | Child mobility device |
| US10946922B2 (en) | 2017-02-16 | 2021-03-16 | Mattel, Inc. | Ride-on toy vehicle configured to tilt and drift |
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| GB1472745A (en) * | 1973-06-26 | 1977-05-04 | Dunlop Ltd | Pneumatic tyres |
| US4008423A (en) * | 1975-02-11 | 1977-02-15 | Gould Inc. | Electrically propelled vehicle |
| US4387325A (en) * | 1981-04-15 | 1983-06-07 | Invacare Corporation | Electric wheelchair with speed control circuit |
| JPS62253093A (en) * | 1986-04-25 | 1987-11-04 | 株式会社 バンダイ | Riding toy |
| JPS63161979A (en) * | 1986-12-26 | 1988-07-05 | 住友ゴム工業株式会社 | Golf cart |
| JP2655884B2 (en) * | 1988-08-05 | 1997-09-24 | 株式会社ブリヂストン | Vehicle assembly |
| US4940444A (en) * | 1989-01-05 | 1990-07-10 | Russell James B | Miniature vehicle with magnetic enhancement of traction |
| US5165006A (en) * | 1989-10-24 | 1992-11-17 | Fuji Jukogyo Kabushiki Kaisha | Vehicle motor switching apparatus |
| US5202617A (en) * | 1991-10-15 | 1993-04-13 | Norvik Technologies Inc. | Charging station for electric vehicles |
| JP2702873B2 (en) * | 1992-09-16 | 1998-01-26 | 住友ゴム工業株式会社 | Radial tire |
| JPH06134144A (en) * | 1992-10-13 | 1994-05-17 | Myung S Bae | Motorcar for infant |
| JPH0852278A (en) * | 1994-08-13 | 1996-02-27 | Namco Ltd | Self-propelled vehicle |
| US5845724A (en) * | 1996-08-14 | 1998-12-08 | Mattel, Inc. | Children's ride-on vehicle with an auxilliary control mechanism |
| US6422330B1 (en) * | 1999-10-04 | 2002-07-23 | Pic Switches, Inc. | Switch for use in ride-on vehicles for children |
| JP3548477B2 (en) * | 2000-01-25 | 2004-07-28 | 鈴木 康之 | Travel speed control device for electric light vehicle and electric light vehicle |
| US6470982B2 (en) * | 2001-02-08 | 2002-10-29 | Mattel, Inc. | Children's ride-on vehicle with mechanical speed control |
| US7222684B2 (en) * | 2001-02-12 | 2007-05-29 | Innovation First, Inc. | System, apparatus, and method for providing control of a toy vehicle |
| US6771034B2 (en) * | 2001-02-21 | 2004-08-03 | Mattel, Inc. | Children's ride-on vehicle with electronic speed control |
| US6620022B1 (en) * | 2002-05-30 | 2003-09-16 | Connector Set Limited Partnership | Drive mechanism for toy racing car |
| US7150332B2 (en) * | 2004-02-11 | 2006-12-19 | Edmonds Jr Richard F | Speed controller for a vehicle |
-
2003
- 2003-12-23 IT IT002577A patent/ITMI20032577A1/en unknown
-
2004
- 2004-12-21 CN CNA200480040979XA patent/CN1921917A/en active Pending
- 2004-12-21 US US10/583,455 patent/US20070128976A1/en not_active Abandoned
- 2004-12-21 EP EP04804324A patent/EP1699534A2/en not_active Withdrawn
- 2004-12-21 JP JP2006546089A patent/JP2007515236A/en active Pending
- 2004-12-21 CA CA002550895A patent/CA2550895A1/en not_active Abandoned
- 2004-12-21 AU AU2004308664A patent/AU2004308664A1/en not_active Abandoned
- 2004-12-21 WO PCT/EP2004/014734 patent/WO2005063349A2/en active Application Filing
- 2004-12-21 BR BRPI0418129-8A patent/BRPI0418129A/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526197A (en) * | 2014-12-04 | 2015-04-22 | 张斐斐 | Wheel axle device for welding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005063349A3 (en) | 2006-01-26 |
| JP2007515236A (en) | 2007-06-14 |
| US20070128976A1 (en) | 2007-06-07 |
| ITMI20032577A1 (en) | 2005-06-24 |
| AU2004308664A1 (en) | 2005-07-14 |
| CA2550895A1 (en) | 2005-07-14 |
| EP1699534A2 (en) | 2006-09-13 |
| BRPI0418129A (en) | 2007-04-17 |
| WO2005063349A2 (en) | 2005-07-14 |
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