CN102114772B - Electric piston-driven electric vehicle suitable for downhill braking - Google Patents
Electric piston-driven electric vehicle suitable for downhill braking Download PDFInfo
- Publication number
- CN102114772B CN102114772B CN2011100272888A CN201110027288A CN102114772B CN 102114772 B CN102114772 B CN 102114772B CN 2011100272888 A CN2011100272888 A CN 2011100272888A CN 201110027288 A CN201110027288 A CN 201110027288A CN 102114772 B CN102114772 B CN 102114772B
- Authority
- CN
- China
- Prior art keywords
- piston
- electromagnet
- cylinder body
- cpu element
- coil
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 230000008859 change Effects 0.000 claims description 26
- 230000007246 mechanism Effects 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 230000009467 reduction Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 4
- 230000009183 running Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Abstract
The invention relates to an electric piston-driven electric vehicle suitable for downhill braking, which adopts an electric piston motor to replace an original petrol engine or diesel engine in a vehicle. The electric piston-driven electric vehicle suitable for downhill braking comprises the electric piston motor, a clutch, a gearbox, a vehicle transmission system and a startup system. During the operation, the direction of coil current of an electromagnet inside the electric piston motor remains unchanged all the time; and when a piston is about to approach an upper stop point or a lower stop point, the electromagnet is controlled to rotate 180 degrees at a high speed around the center line in the height direction of the electromagnet, so that the magnetic polarities of the upper and the lower ends of the electromagnet are rapidly switched, as a result, the electromagnet repeatedly acts on the piston to drive a crank shaft and thus to enable a flywheel to output a positive torque or a negative torque outwards. The electric piston-driven electric vehicle suitable for downhill braking solves the problem in the prior art that the time delay is caused by the failure of instantaneous reverse of the coil current, and ensures the running stability.
Description
Technical field
The present invention relates to the technical field of the battery-driven car of electric power piston motor driving, specifically is a kind of electric power piston actuated formula battery-driven car that is suitable for downhill braking.
Background technology
Chinese patent document CN101860168A discloses a kind of electric motor; Its conventional engines air feed, fuel feeding, exhaust, ignition system remove; Substitute with electromagnet assembly; Internal piston embeds permanent magnet, and the direction of current through the control magnet coil comes control plunger upper and lower displacement in cylinder then, and piston is through the external outputting power of connecting bar and crankshaft mechanism.This electric motor is applicable to the vehicle such as automobile, motor bike.
The patent documentation of similar technique scheme also has CN1996724A, CN1255767A, CN200990555Y etc.
The weak point of above-mentioned electric power piston motor of the prior art is: change the magnetic polarity of electromagnet through the flow through direction of current of magnet coil of frequent switching; Thereby the direction of the application force of control electromagnet and piston, and then the shift reciprocately of control plunger; But in actual implementation process,, cause to guarantee the continuity and the stability of the horsepower output or the moment of torsion of electrical motor because the direction of current of magnet coil can not instantaneously change.Therefore, the direction of current that adopt to switch the magnet coil of flowing through changes the magnetic polarity of electromagnet, thereby the technical scheme of the sense of displacement of control plunger does not have practicality.
For solving the problems of the technologies described above, Chinese patent document CN101697445A discloses a kind of electrical motor, and it adopts alternately conduction of a pair of excitation coil that is provided with up and down, so that the piston shift reciprocately.But in actual implementation process because the electric current of excitation coil can not instantaneously change, and up and down excitation coil exist crosstalk mutually with magnetic in etc. reason, this scheme also can't be guaranteed the continuity and the stability of the horsepower output or the moment of torsion of electrical motor.
How improving the continuity and the stability of the horsepower output or the moment of torsion of electric power piston motor, is the technical matters that this area will solve.
In addition, the prior electric car often adopts the motor direct-drive wheel, repacks existing petrol and diesel oil self-propelled vehicle into adopt motor direct-drive battery-driven car, and cost is higher, operation is loaded down with trivial details and difficult realization.How directly changing the gasoline and diesel engine in the existing petrol and diesel oil self-propelled vehicle into electrodynamic type, and utilize the driving system of direct drive self-propelled vehiclees such as flywheel in original self-propelled vehicle, power-transfer clutch, change speed gear box, is the technical matters that this area will solve.
Summary of the invention
The technical matters that the present invention will solve provides a kind of simple in structure, electric power piston actuated formula battery-driven car of being suitable for downhill braking.
In order to solve the problems of the technologies described above; The invention provides a kind of electric power piston actuated formula battery-driven car that is suitable for downhill braking, it comprises: the electric power piston motor, be connected in flywheel on the bent axle in the electric power piston motor, be located at the power-transfer clutch on the flywheel, the change speed gear box that links to each other with the output shaft of power-transfer clutch, the vehicle drive system that is in transmission connection with the output shaft of change speed gear box; The driven wheel engagement of the gear ring of flywheel outer rim and a start-up system; Said electric power piston motor comprises: a plurality of cylinder bodies, the connecting rod of being located at the piston of being processed by permanent magnet in the cylinder body and being used for each piston and said bent axle are in transmission connection; Bent axle is located at the below of each cylinder body; The upper end of said cylinder body is provided with the electromagnet with the cylinder body coaxial inner conductor, and magnet spool links to each other with a coil driver; Said coil driver links to each other with a CPU element; Said electromagnet is located on the switching mechanism by CPU element control; The upper and lower stop place of contiguous cylinder body is provided with the upper and lower stroke switch that links to each other with CPU element respectively, and the bottom of cylinder body is provided with the Hall element that links to each other with said CPU element; CPU element also is connected with the vehicle Slope Transducer, is used to detect the speed governing sensor of speed governing pedal or handgrip position.
When battery-driven car starts, adopt said start-up system to drive said flywheel and said bent axle is rotated, said CPU element detects the sense of displacement of each piston through the Hall element of each cylinder base; If record the piston forward bottom offset in the cylinder body; Then said CPU element provides the electric current of respective direction to the magnet spool of this cylinder body top through said coil driver; So that the magnetic polarity of this electromagnet bottom is identical with the magnetic polarity of piston head, piston quickens to move down in this cylinder body because of the following repulsion from electromagnet; If record the piston forward top offset in the cylinder body; Then said CPU element provides the electric current of respective direction to the magnet spool of this cylinder body top through said coil driver; So that the magnetic polarity of the magnetic polarity of this electromagnet bottom and piston head is opposite, piston quickens to move in this cylinder body because of the last suction from electromagnet; Treat each magnet spool get electric after, break off said start-up system and keep the direction of current in each coil constant; Simultaneously; When said CPU element records piston in the cylinder body and is about to arrive the bottom dead point of this cylinder body through said lower stroke switch; The electromagnet of CPU element through this cylinder body top of said switching mechanism control is around the height line of centers Rotate 180 of this electromagnet °; And the piston of this moment has arrived bottom dead point, because the magnetic polarity of the magnetic polarity of the electromagnet of this moment bottom and piston head is opposite, piston begins in this cylinder body to top offset because of the last suction from electromagnet; When said CPU element records piston in the cylinder body and is about to arrive the top dead point of this cylinder body through said upper stroke switch; The electromagnet of CPU element through this cylinder body top of said switching mechanism control is around 180 ° of the height line of centers contrarotations of this electromagnet; And the piston of this moment has arrived top dead point; Because the magnetic polarity of the electromagnet of this moment bottom is identical with the magnetic polarity of piston head, piston begins to bottom offset because of the following repulsion from electromagnet; So repeatedly, export positive moment of torsion thereby make each piston drive said crankshaft operation and drive said flywheel through corresponding connecting rod, flywheel is through power-transfer clutch, change speed gear box powered vehicle driving system, thus the driving battery-driven car; Simultaneously, CPU element is through the position of speed governing sensor speed governing pedal or handgrip, and then controls the size of current of each coil, thereby realizes speed of a motor vehicle control; Recording speed governing pedal or handgrip when released, CPU element is controlled said coil driver and is stopped to each coil power supply.
Be on the down ramp and the gradient is worth greater than the abrupt slope when CPU element records current vehicle through said vehicle Slope Transducer; Record speed governing pedal or handgrip simultaneously when released; CPU element actuating motor retrosequence, that is: CPU element detects the sense of displacement of each piston through said Hall element, if record a piston forward bottom offset; Then CPU element provides the electric current of respective direction to cooresponding coil through said coil driver; So that the magnetic polarity of the magnetic polarity of corresponding electromagnet bottom and piston head is opposite,, thereby brake said bent axle with the speed that moves down of reduction piston; If record a piston forward top offset; Then CPU element provides the electric current of respective direction to cooresponding coil through said coil driver; So that the magnetic polarity of corresponding electromagnet bottom is identical with the magnetic polarity of piston head, moving speed on the reduction piston, thereby brake said bent axle; When said bent axle does not shut down; If CPU element records the bottom dead point that this piston is about to arrive this cylinder body through said lower stroke switch; Then the electromagnet of CPU element through this cylinder body top of said switching mechanism control is around the height line of centers Rotate 180 of this electromagnet °; If the piston of this moment has arrived bottom dead point and has begun to top offset; Because the magnetic polarity of the electromagnet bottom of this moment is identical with the magnetic polarity of piston head, piston is braked said bent axle beginning in top offset, to bear from the following repulsion of electromagnet; If CPU element records the top dead point that this piston is about to arrive this cylinder body through said upper stroke switch; Then the electromagnet of CPU element through this cylinder body top of said switching mechanism control is around 180 ° of the height line of centers contrarotations of this electromagnet; If the piston of this moment has arrived top dead point and has begun to bottom offset; Because the magnetic polarity of the electromagnet of this moment bottom is opposite with the magnetic polarity of piston head, piston is braked said bent axle because of the last suction from electromagnet; So repeatedly, so that said flywheel is externally exported negative torque, when the rotating speed of said flywheel is lower than a low speed value, stop to each coil power supply; Or, recording that the speed governing pedal is operated or handgrip when being rotated until CPU element, CPU element is controlled said flywheel again and is exported positive moment of torsion.
Technique scheme of the present invention is compared prior art and is had the following advantages: (1) electric power piston motor of the present invention in the course of the work, the magnet spool direction of current remains constant; When piston is about to arrive upper and lower stop; The control electromagnet is around 180 ° of its height line of centers fast rotational; At high speed switches the magnetic polarity of electromagnet upper and lower side, thereby makes electromagnet produce positive acting power to piston repeatedly, and then drives bent axle and make the externally positive moment of torsion of output of flywheel.The such scheme that the present invention adopts, that has avoided prior art can't realize the time-delay that instantaneous reverse brings because of coil current, and then makes the horsepower output of electrical motor of the present invention or moment of torsion have continuity and stability preferably, practicality is better.(2) electrical motor of the present invention is when starting; Adopt start-up system that said flywheel is rotated; CPU element detects the sense of displacement of each piston through the Hall element in each cylinder body, to each coil the electric current of respective direction to be provided through coil driver according to the sense of displacement of each piston, to realize that each piston drives bent axle through corresponding connecting rod and turns round continuously; Break off start-up system then, thereby realized the reliable startup of electrical motor of the present invention.(3) in the flywheel operation process; When needing flywheel externally to export negative torque; Stop earlier to each coil power supply, CPU element detects the sense of displacement of each piston through the Hall element in each cylinder body then, and provides the electric current of respective direction and holding current direction constant through coil driver to each coil according to the sense of displacement of each piston; Then according to each position of piston; Switch the magnetic polarity of electromagnet upper and lower side through electromagnet fast around the mode of 180 ° of its height line of centers fast rotational, thereby make electromagnet produce dumping force to each piston repeatedly, and then brake bent axle and make said flywheel externally export negative torque and implement and brake.Electrical motor of the present invention is implemented braking when descending automatically on the abrupt slope, guaranteed driving safety.(4) Hall element among the present invention is located at the bottom central of cylinder body, and relative with the bottom surface central authorities of said piston.Because two magnetic poles of piston distribute with straight line up and down with two magnetic poles of electromagnet, so the electromagnetic signal that Hall element obtains is basically from piston base, and promptly Hall element does not receive the interference of electromagnet basically, has guaranteed the reliability of piston position detection.During practical implementation, also can adopt electromagnetic compensation and/or shielding shielding measure, improve the reliability of Hall element output signal except that the electromagnetic signal of vertical direction.(5) among the present invention, each piston is symmetrically distributed in the height line of centers both sides of cylinder body in corresponding cylinder body, have homogeneity and stability preferably to guarantee the application force on each piston action and the bent axle.(6) battery-driven car of the present invention mainly is meant electronlmobil, also can be battery-operated motor cycle, electro-tricycle, electronic farm machinery car etc.
Description of drawings
For content of the present invention is more clearly understood, below basis specific embodiment and combine accompanying drawing, the present invention is done further detailed explanation, wherein
Fig. 1 is the structural representation of the electric power piston motor among the embodiment;
Fig. 2 a kind ofly is used to control electromagnet around the switching mechanism of its height line of centers Rotate 180 ° and the structural representation of cylinder body for what the electric power piston motor among the embodiment adopted;
Fig. 3 is the circuit block diagram of the control circuit of said electric power piston motor;
Fig. 4 is the transmission system constructional drawing of the electric power piston actuated formula battery-driven car among the embodiment;
Fig. 5 is the another kind of said switching mechanism of the electric power piston motor employing among the embodiment and the structural representation of cylinder body.
The specific embodiment
See Fig. 1-3; The electric power piston actuated formula battery-driven car that is suitable for downhill braking of present embodiment, it comprises: brake system, electric power piston motor 20, be connected in flywheel on the bent axle in the electric power piston motor 20, be located at the power-transfer clutch 21 on the flywheel, the change speed gear box 22 that links to each other with the output shaft of power-transfer clutch 21, the vehicle drive system that is in transmission connection with the output shaft of change speed gear box 22; The driven wheel engagement of the gear ring of flywheel outer rim and a start-up system.This start-up system adopts the matching used start-up system of of the prior art and existing engine petrol.
Said vehicle drive system comprises: the axle drive shaft 24 that is in transmission connection through the universal-joint 23 and the output shaft of change speed gear box 22, the diff 27 that is in transmission connection through another universal-joint and axle drive shaft 24 and the wheel that links to each other through semiaxis 26 transmissions with diff 27.Wherein, at axle drive shaft 24 and diff 27 main reduction gear 25 can be set.
Said electric power piston motor 20 comprises: the cylinder body 1 that a plurality of high resistance non-magnet materials (as: aluminum alloy, copper alloy etc.) are processed, be located at the piston of being processed by permanent magnet 5 in the cylinder body 1, the connecting rod 3 of being located at the bent axle 2 of each cylinder body 1 below and being used for each piston 5 and said bent axle 2 are in transmission connection; The upper end of said cylinder body 1 is provided with the electromagnet 7 with cylinder body 1 coaxial inner conductor, and the coil 8 of electromagnet 7 links to each other with a coil driver; The height line of centers of electromagnet 7 is provided with rotating shaft 9, and this rotating shaft 9 is located at cylinder body 1 top through pair of bearing 4; One end of rotating shaft 9 links to each other with a stepping motor 12 transmissions through a change speed gear box 11; Said coil driver links to each other with a CPU element with stepping motor 12; The upper and lower stop place of contiguous cylinder body 1 is provided with the upper and lower stroke switch 13 and 14 that links to each other with CPU element respectively; The bottom central of said cylinder body 1 is provided with the Hall element 15 that links to each other with said CPU element.Said Hall element 15 is relative with the bottom surface central authorities of said piston 5.Hall element 15 is located in the metal tube of a non-magnet material, this metal tube and said piston 5 coaxial inner conductors.Further to make electromagnetic signal that Hall element 15 obtains basically from the bottom of piston.CPU element also is connected with the vehicle Slope Transducer, is used to detect the speed governing sensor of speed governing pedal or handgrip position.
Said brake system comprises: brake pedal, by the drg and the brake pedal sensor that is used to detect brake pedal position that links to each other with said CPU element of brake pedal transmission control; Said upper and lower stroke switch 13 and 14 adopts contact or infrared-type travel switch.The piston 5 of cylindricality is provided with wear-resisting circle.
Each piston 5 is in different travel position in said cylinder body 1, and each piston 5 is symmetrically distributed in the height line of centers both sides of cylinder body 1 in corresponding cylinder body 1, is suitable for continuous driving crank 2 to guarantee connecting rod 3, and makes the moment of torsion of bent axle 2 outputs stable.
When battery-driven car starts, adopt said start-up system to drive said flywheel, so that said bent axle 2 rotates, said CPU element detects the sense of displacement of each piston 5 through the Hall element 15 of each cylinder body 1 bottom; At this moment; If record the piston 5 forward bottom offsets in the cylinder body 1; Then said CPU element provides the electric current of respective direction to the coil 8 of the electromagnet 7 of this cylinder body 1 top through said coil driver; So that the magnetic polarity of these electromagnet 7 bottoms is identical with the magnetic polarity at piston 5 tops, piston 5 quickens to move down in this cylinder body 1 because of the following repulsion from electromagnet 7; Or; This moment is if record the piston 5 forward top offsets in the cylinder body 1; Then said CPU element provides the electric current of respective direction to the coil 8 of the electromagnet 7 of this cylinder body 1 top through said coil driver; So that the magnetic polarity at the magnetic polarity of these electromagnet 7 bottoms and piston 5 tops is opposite, piston 5 quickens to move in this cylinder body 1 because of the last suction from electromagnet 7; Treat each electromagnet 7 coil 8 electric after, break off said start-up system and keep the direction of current in each coil 8 constant; Simultaneously; When said CPU element records piston 5 in the cylinder body 1 and is about to arrive the bottom dead point of this cylinder body 1 through said lower stroke switch 14; CPU element is to impulse singla of said stepping motor 12 outputs; Rotate a fixing angle to drive this stepping motor 12 by the direction of setting, thereby make stepping motor 12, and the piston 5 of this moment arrives bottom dead point just or through said rotating shaft 9 Rotate 180s of said change speed gear box 11 controls °; Because the magnetic polarity of electromagnet 7 bottoms of this moment is opposite with the magnetic polarity at piston 5 tops, piston 5 begins in this cylinder body 1 to top offset because of the last suction from electromagnet 7; When said CPU element records this piston 5 and is about to arrive the top dead point of this cylinder body 1 through said upper stroke switch 13; CPU element is to said stepping motor 12 another impulse singlas of output; To drive fixing angle of these stepping motor 12 counter-rotation; Thereby make stepping motor 12 through 180 ° of said rotating shaft 9 contrarotations of said change speed gear box 11 controls, and the piston 5 of this moment arrives top dead point just or, and piston 5 begin to bottom offset because of time repulsion; So repeatedly, export positive moment of torsion thereby make each piston 5 drive said bent axle 2 runnings through corresponding connecting rod 3 to drive said flywheel, flywheel is through power-transfer clutch 21, change speed gear box 22 powered vehicle driving systems, thus the driving battery-driven car.
When the said speed governing pedal of non-releasing orientation or the invariant position of handgrip; Said CPU element detects the position of said piston 5 through Hall element 15; To draw the spacing of said piston 5 and electromagnet 7 in the same cylinder body 1; And adjust the size of current in the said coil 8 through said coil driver in real time according to this spacing size; So that said piston 5 moves past in the journey at upper and lower, keep the size of the application force between piston 5 and the electromagnet 7 stable, so that the continuity of the power of this electrical motor output or moment of torsion is with better stable.When the position change of said speed governing pedal or handgrip; Said piston 5 in the also same cylinder body 1 of said CPU element is adjusted the size of current in each coil 8 in real time with the spacing of electromagnet 7; So that the variation of force between piston 5 and the electromagnet 7 is linear; And corresponding with the change in location of said speed governing pedal or handgrip, and then make the speed of a motor vehicle be linear change, to pass through driver comfort.
Speed governing pedal of this battery-driven car (it adopts the Das Gaspedal of automobile of the prior art) or handgrip (it adopts the speed regulating handle of Electrical Bicycle of the prior art) are provided with the speed governing sensor that links to each other with said CPU element; CPU element is through the position of speed governing sensor speed governing pedal or handgrip; And then control the size of current of each coil 8, thereby realize speed of a motor vehicle control.The speed governing sensor can be selected pressure sensor for use, exports corresponding force value signal according to the degree of depth that the speed governing pedal is entered into.
Said CPU element also is connected with the vehicle Slope Transducer (can adopt the disclosed automobile Slope Transducer of Chinese patent document CN2703248) that is used to detect vehicle chassis angle degree; When the moving ahead of this battery-driven car, if record current vehicle in upwards climbing, and record the invariant position of speed governing pedal or handgrip through said vehicle Slope Transducer, then CPU element is according to the gradient size corresponding electric current of heightening each coil 8 automatically, so that the speed of a motor vehicle is stable.If record the invariant position that current vehicle comes down downwards and records speed governing pedal or handgrip through said vehicle Slope Transducer, then CPU element is according to the automatic corresponding electric current of turning down each coil 8 of gradient size, so that the speed of a motor vehicle is stable.
When recording current vehicle through said vehicle Slope Transducer, CPU element is in the down ramp upgrade greater than abrupt slope value (for example greater than 10 °); Record speed governing pedal or handgrip simultaneously when released; No matter whether brake pedal is operated, CPU element actuating motor retrosequence, that is:
CPU element detects the sense of displacement of each piston 5 through said Hall element 15; If record a piston 5 forward bottom offsets; Then CPU element provides the electric current of respective direction through said coil driver to cooresponding coil 8, so that the magnetic polarity of corresponding electromagnet 7 bottoms is opposite with the magnetic polarity at piston 5 tops, with the speed that moves down of reduction piston 5; Thereby brake said bent axle 2, that is: make said flywheel externally export negative torque; If record a piston 5 forward top offsets; Then CPU element provides the electric current of respective direction to cooresponding coil 8 through said coil driver; So that the magnetic polarity of corresponding electromagnet 7 bottoms is identical with the magnetic polarity at piston 5 tops, moving speed on the reduction piston 5, thereby brake said bent axle 2.
When said bent axle 2 does not shut down; If CPU element records the bottom dead point that this piston 5 is about to arrive this cylinder body 1 through said lower stroke switch 14; Then CPU element is to impulse singla of said stepping motor 12 outputs; Rotate a fixing angle to drive this stepping motor 12 by the direction of setting, thereby make stepping motor 12 through said rotating shaft 9 Rotate 180s of said change speed gear box 11 controls °, if the piston 5 of this moment arrives bottom dead point just or and begins to top offset; Then because the magnetic polarity of electromagnet 7 bottoms of this moment is identical with the magnetic polarity at piston 5 tops, piston 5 is braked said bent axle 2 beginning in top offset, to bear from the following repulsion of electromagnet 7; If CPU element records the top dead point that this piston 5 is about to arrive this cylinder body 1 through said upper stroke switch 13; Then CPU element is to said stepping motor 12 another impulse singlas of output; To drive fixing angle of these stepping motor 12 backward rotation; Thereby make stepping motor 12 through 180 ° of said rotating shaft 9 contrarotations of said change speed gear box 11 controls; If the piston 5 of this moment arrives top dead point just or and begins to bottom offset, then because the magnetic polarity at the magnetic polarity of electromagnet 7 bottoms of this moment and piston 5 tops is opposite, piston 5 is because of braking said bent axle 2 from the last suction of electromagnet 7; So repeatedly, so that said flywheel is externally exported negative torque, when the speed of a motor vehicle is brought down below a low speed value (like 15Km/h), stop to 8 power supplies of each coil; Or, recording through the speed governing sensor that the speed governing pedal is stepped on down again or handgrip when being rotated until CPU element, this moment, CPU element was controlled the positive moment of torsion of the normal output of said flywheel again.
Said CPU element judges through the rate of displacement that Hall element 15 detects each piston 5 whether said bent axle 2 shuts down.
When externally exporting brake torque through said bent axle 2, the electric current that said coil driver provides to said coil 8 is a pulse current.Said coil 8 one sides are provided with air cooling equipment or said coil 8 is located in the oil cooling device; The temperature of the dutycycle of the pulse current in the coil 8 and said coil 8 is linear or non-linear negative correlation, in case principal vertical line circle 8 is overheated.
In the electric vehicle running process, if CPU element records the speed of a motor vehicle through car speed sensor and is lower than 30Km/h, and speed governing pedal or handgrip be when released, and then CPU element starts idling and slides program.Be size of current in each coil 8 of CPU element control, so that the speed of a motor vehicle is stable at 20Km/h.
The brake system of this battery-driven car adopts the brake system of the gasoline fueled motor vehicle of prior art.
Higher when the speed of a motor vehicle, as greater than 40Km/h, CPU element records brake pedal through brake pedal sensor and is operated; Be that brake system is implemented glancing impact; CPU element is the actuating motor retrosequence also, when said bent axle 2 is about to shut down, stops to 8 power supplies of each coil; Or it is released to record brake pedal until CPU element through brake pedal sensor, and promptly brake system stops to implement glancing impact, stops to 8 power supplies of each coil.
Fig. 5 is the structural representation of another kind of said switching mechanism; Electromagnet 7 is located on the miniature gears 16; And the center shaft of this miniature gears 16 is located on the center-point of electromagnet 7, and this miniature gears 16 is meshed with a big gear wheel 17, and this big gear wheel 17 links to each other with said change speed gear box 11 transmissions; During work; CPU element is to impulse singla of said stepping motor 12 outputs; Rotate a fixing angle to drive this stepping motor 12 by the direction of setting, thereby make stepping motor 12 through 180 ° of said change speed gear box 11, big gear wheel 17 said miniature gears 16 cws of control or left-hand revolutions.
Obviously, the foregoing description only be for clearly the present invention is described and is done for example, and be not to be qualification to embodiment of the present invention.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (2)
1. electric power piston actuated formula battery-driven car that is suitable for downhill braking is characterized in that comprising: electric power piston motor (20), be connected in flywheel on the bent axle in the electric power piston motor (20), be located at the power-transfer clutch (21) on the flywheel, the change speed gear box (22) that links to each other with the output shaft of power-transfer clutch (21), the vehicle drive system that is in transmission connection with the output shaft of change speed gear box (22); The driven wheel engagement of the gear ring of said flywheel outer rim and a start-up system;
Said electric power piston motor (20) comprising: a plurality of cylinder bodies (1), be located at piston of being processed by permanent magnet (5) and the connecting rod (3) that is used for each piston (5) and said bent axle (2) are in transmission connection in the cylinder body (1); Bent axle (2) is located at the below of each cylinder body (1);
The upper end of said cylinder body (1) is provided with the electromagnet (7) with cylinder body (1) coaxial inner conductor, and the coil (8) of electromagnet (7) links to each other with a coil driver, and this coil driver links to each other with a CPU element; Said electromagnet (7) is located on the switching mechanism by CPU element control;
The upper and lower stop place of contiguous cylinder body (1) is provided with the upper and lower stroke switch (13,14) that links to each other with CPU element respectively, and the bottom of cylinder body (1) is provided with the Hall element (15) that links to each other with said CPU element; CPU element also is connected with the vehicle Slope Transducer, is used to detect the speed governing sensor of speed governing pedal or handgrip position;
When battery-driven car starts, adopt said start-up system to drive said flywheel and said bent axle (2) is rotated, the Hall element (15) of said CPU element bottom each cylinder body (1) detects the sense of displacement of each piston (5);
If record piston (5) the forward bottom offset in the cylinder body (1); Then said CPU element provides the electric current of respective direction to the coil (8) of the electromagnet (7) of this cylinder body (1) top through said coil driver; So that the magnetic polarity of this electromagnet (7) bottom is identical with the magnetic polarity at piston (5) top, piston (5) quickens to move down in this cylinder body (1) because of the following repulsion from electromagnet (7);
If record piston (5) the forward top offset in the cylinder body (1); Then said CPU element provides the electric current of respective direction to the coil (8) of the electromagnet (7) of this cylinder body (1) top through said coil driver; So that the magnetic polarity at the magnetic polarity of this electromagnet (7) bottom and piston (5) top is opposite, piston (5) quickens to move in this cylinder body (1) because of the last suction from electromagnet (7);
Treat each electromagnet (7) coil (8) electric after, break off said start-up system and keep the direction of current in each coil (8) constant;
Simultaneously; When said CPU element records piston (5) in the cylinder body (1) and is about to arrive the bottom dead point of this cylinder body (1) through said lower stroke switch (14); The electromagnet (7) of CPU element through said switching mechanism this cylinder body of control (1) top is around the height line of centers Rotate 180 of this electromagnet (7) °; And the piston (5) of this moment has arrived bottom dead point; Because the magnetic polarity of the electromagnet (7) of this moment bottom is opposite with the magnetic polarity at piston (5) top, piston (5) begins in this cylinder body (1) to top offset because of the last suction from electromagnet (7); When said CPU element records piston (5) in the cylinder body (1) and is about to arrive the top dead point of this cylinder body (1) through said upper stroke switch (13); The electromagnet (7) of CPU element through said switching mechanism this cylinder body of control (1) top is around 180 ° of the height line of centers contrarotations of this electromagnet (7); And the piston (5) of this moment has arrived top dead point; Because the magnetic polarity of the electromagnet (7) of this moment bottom is identical with the magnetic polarity at piston (5) top, piston (5) begins to bottom offset because of the following repulsion from electromagnet (7); So repeatedly, turn round and drive said flywheel and export positive moment of torsion thereby make each piston (5) drive said bent axle (2) through corresponding connecting rod (3), flywheel is through power-transfer clutch (21), change speed gear box (22) powered vehicle driving system, thereby drives battery-driven car;
Simultaneously, CPU element is through the position of speed governing sensor speed governing pedal or handgrip, and then controls the size of current of each coil (8), thereby realizes speed of a motor vehicle control; Recording speed governing pedal or handgrip when released, CPU element is controlled said coil driver and is stopped to supply power to each coil (8);
Be on the down ramp and the gradient is worth greater than the abrupt slope when CPU element records current vehicle through said vehicle Slope Transducer, record speed governing pedal or handgrip simultaneously when released, CPU element actuating motor retrosequence, that is:
CPU element detects the sense of displacement of each piston (5) through said Hall element (15); If record a piston (5) forward bottom offset; Then CPU element provides the electric current of respective direction to cooresponding coil (8) through said coil driver; So that the magnetic polarity at the magnetic polarity of corresponding electromagnet (7) bottom and piston (5) top is opposite,, thereby brake said bent axle (2) with the speed that moves down of reduction piston (5); If record a piston (5) forward top offset; Then CPU element provides the electric current of respective direction to cooresponding coil (8) through said coil driver; So that the magnetic polarity of corresponding electromagnet (7) bottom is identical with the magnetic polarity at piston (5) top; With reduce piston (5) on move speed, thereby brake said bent axle (2);
At said bent axle (2) when not shutting down; If CPU element records the bottom dead point that this piston (5) is about to arrive this cylinder body (1) through said lower stroke switch (14); Then the electromagnet (7) of CPU element through said switching mechanism this cylinder body of control (1) top is around the height line of centers Rotate 180 of this electromagnet (7) °; If the piston (5) of this moment has arrived bottom dead point and has begun to top offset; Because the magnetic polarity of electromagnet (7) bottom of this moment is identical with the magnetic polarity at piston (5) top, piston (5) is braked said bent axle (2) beginning in top offset, to bear from the following repulsion of electromagnet (7); If CPU element records the top dead point that this piston (5) is about to arrive this cylinder body (1) through said upper stroke switch (13); Then the electromagnet (7) of CPU element through said switching mechanism this cylinder body of control (1) top is around 180 ° of the height line of centers contrarotations of this electromagnet (7); If the piston (5) of this moment has arrived top dead point and has begun to bottom offset; Because the magnetic polarity of the electromagnet (7) of this moment bottom is opposite with the magnetic polarity at piston (5) top, piston (5) is because of braking said bent axle (2) from the last suction of electromagnet (7); So repeatedly, so that said flywheel is externally exported negative torque, when the rotating speed of said flywheel is lower than a low speed value, stop to supply power to each coil (8); Or, recording that the speed governing pedal is operated or handgrip when being rotated until CPU element, CPU element is controlled said flywheel again and is exported positive moment of torsion.
2. the electric power piston actuated formula battery-driven car that is suitable for downhill braking according to claim 1; It is characterized in that: when the said speed governing pedal of non-releasing orientation or the invariant position of handgrip; CPU element detects the position of said piston (5) through Hall element (15); To draw the spacing of interior said piston (5) of same cylinder body (1) and electromagnet (7); And adjust the size of current in the said coil (8) through said coil driver in real time according to this spacing size, so that said piston (5) moves past in the journey at upper and lower, keep the size of the application force between piston (5) and the electromagnet (7) to stablize.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100272888A CN102114772B (en) | 2011-01-25 | 2011-01-25 | Electric piston-driven electric vehicle suitable for downhill braking |
| CN201210305116.7A CN105730227B (en) | 2011-01-25 | 2011-01-25 | Electrical piston driving type electric vehicle suitable for down hill braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100272888A CN102114772B (en) | 2011-01-25 | 2011-01-25 | Electric piston-driven electric vehicle suitable for downhill braking |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210305911.6A Division CN102806843B (en) | 2011-01-25 | 2011-01-25 | Electric vehicle |
| CN201210306807.9A Division CN102806844B (en) | 2011-01-25 | 2011-01-25 | Electric vehicle suitable for downhill braking |
| CN201210306780.3A Division CN102774280B (en) | 2011-01-25 | 2011-01-25 | Power piston drive electric vehicle and its downhill braking method |
| CN201210305116.7A Division CN105730227B (en) | 2011-01-25 | 2011-01-25 | Electrical piston driving type electric vehicle suitable for down hill braking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102114772A CN102114772A (en) | 2011-07-06 |
| CN102114772B true CN102114772B (en) | 2012-12-05 |
Family
ID=44213736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100272888A Active CN102114772B (en) | 2011-01-25 | 2011-01-25 | Electric piston-driven electric vehicle suitable for downhill braking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102114772B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110065387A (en) * | 2019-04-26 | 2019-07-30 | 湖北启源科技有限公司 | A kind of electric piston drive type electric vehicle and its working method |
| CN110356225A (en) * | 2019-06-24 | 2019-10-22 | 浙江零跑科技有限公司 | A kind of adjustable feedback force formula gas pedal |
| CN112987548A (en) * | 2021-03-02 | 2021-06-18 | 网莱(广州)网络科技有限公司 | A mouthful protection component that charges for children's conversation wrist-watch that intelligence was made |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6541875B1 (en) * | 2000-05-17 | 2003-04-01 | Caterpillar Inc | Free piston engine with electrical power output |
| CN2817200Y (en) * | 2005-08-10 | 2006-09-13 | 陈传生 | Electric engine |
| CN1996724A (en) * | 2006-11-17 | 2007-07-11 | 李震 | Piston motor |
| CN201184224Y (en) * | 2008-03-06 | 2009-01-21 | 中国重汽集团济南技术中心有限公司 | Exhaust valve brake device for four-valve engine |
| CN101860168A (en) * | 2010-05-13 | 2010-10-13 | 贾立进 | Electric engine |
-
2011
- 2011-01-25 CN CN2011100272888A patent/CN102114772B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102114772A (en) | 2011-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20110120864A (en) | Braking energy recovery system for a vehicle and vehicle equipped with same | |
| US20160009185A1 (en) | Generator motor unit, power output engine, and vehicle | |
| CN102114772B (en) | Electric piston-driven electric vehicle suitable for downhill braking | |
| CN201300709Y (en) | Hybrid power farm truck | |
| CN102806844B (en) | Electric vehicle suitable for downhill braking | |
| CN102120422B (en) | Electric piston driven type electromobile suitable for electric braking | |
| CN102120419B (en) | Electric piston driven type electromobile | |
| CN102673389B (en) | Electric power piston driving type electric vehicle and working method thereof | |
| CN102774280A (en) | Downhill braking method of power piston drive electric vehicle | |
| CN201989617U (en) | Control system of electrical piston driving type electric vehicle | |
| CN102075059B (en) | Electric power piston type motor | |
| CN104136316A (en) | Gear shift actuator for an internal combustion engine | |
| CN105730227B (en) | Electrical piston driving type electric vehicle suitable for down hill braking | |
| CN102673408B (en) | Power piston drive-type electrocar suitable for electric brake and working method of electrocar | |
| CN102611273B (en) | Electric piston type motor suitable for outputting positive and negative torque | |
| CN102806843A (en) | Electric vehicle | |
| CN201907408U (en) | Electric power piston driving type electric motor car | |
| CN102075060B (en) | Electric piston motor suitable for outputting positive torque and negative torque | |
| CN100529480C (en) | Internal-combustion engines vehicle power intelligence control system and control method thereof | |
| CN201937434U (en) | Electric piston type electric motor | |
| CN201956955U (en) | Control system of power piston type motor | |
| CN102594080B (en) | Electric piston type motor | |
| CN102594081B (en) | Power piston type motor with better continuity and stability in power/torque output | |
| CN201937437U (en) | Gear control mechanism for overturn of electromagnets of electric piston type motor | |
| CN204755652U (en) | Automatic wheeling unit of fluid pressure type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 213001 1801 Zhong Wu Avenue, Zhong Lou District, Changzhou, Jiangsu Patentee after: Jiangsu University of Technology Address before: 213000 No. 1801 Wudao Road, Zhonglou District, Changzhou City, Jiangsu Province Patentee before: Jiangsu Teachers University of Technology |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201123 Address after: No.999, Nanhuan West Road, Jiangyan Town, Jiangyan District, Taizhou City, Jiangsu Province Patentee after: Taizhou general strategy science and Technology Consulting Co.,Ltd. Address before: 213001 Changzhou Province in the Clock Tower District, Jiangsu, Wu Road, No. 1801 Patentee before: JIANGSU University OF TECHNOLOGY |
|
| TR01 | Transfer of patent right |