CN108501730B - Braking energy recovery system and energy-saving automobile - Google Patents
Braking energy recovery system and energy-saving automobile Download PDFInfo
- Publication number
- CN108501730B CN108501730B CN201810527092.7A CN201810527092A CN108501730B CN 108501730 B CN108501730 B CN 108501730B CN 201810527092 A CN201810527092 A CN 201810527092A CN 108501730 B CN108501730 B CN 108501730B
- Authority
- CN
- China
- Prior art keywords
- contacts
- sliding piece
- wiring terminal
- tap
- phase
- 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
- 238000011084 recovery Methods 0.000 title claims abstract description 34
- 238000004804 winding Methods 0.000 claims abstract description 76
- 230000001360 synchronised effect Effects 0.000 claims abstract description 56
- 238000003860 storage Methods 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims description 45
- 229910052751 metal Inorganic materials 0.000 claims description 45
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000036461 convulsion Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- 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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1415—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with a generator driven by a prime mover other than the motor of a vehicle
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Synchronous Machinery (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a braking energy recovery system and an energy-saving automobile, and belongs to the technical field of automobiles. The system comprises: a multi-tap synchronous generator, an electric change-over switch and a storage battery. The generator comprises a rotor winding and a tap-type stator winding axially arranged along the rotating shaft direction of the rotor winding, wherein the stator winding comprises a first wiring terminal used for being connected with an electric change-over switch, the first wiring terminal comprises a plurality of groups of contacts, each group of contacts consists of at least one phase of contacts, a plurality of contacts are led out from the same turn number position according to a preset interval turn number when each phase of stator winding is wound, and the contacts with the same turn number are used as a group of contacts. The motor-driven change-over switch is respectively connected with the generator and the storage battery, and the number of turns of the stator winding of the communicating tap type is adjusted by controlling the motor-driven change-over switch, so that the reverse torque of the multi-tap synchronous generator is adjusted, and the output current of the generator is adjusted, thereby achieving the purpose of improving the braking energy recovery rate.
Description
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to a braking energy recovery system and an energy-saving automobile.
Background
At present, when the vehicle brakes and decelerates, the engine drives the generator to rotate through the clutch, the counter electromotive force generated by the generator has a counter torque effect on the engine, namely a braking effect, and meanwhile, the generator generates current and recovers electric energy through a braking energy recovery system. The braking energy recovery system is a system for converting thermal energy generated when the automobile is braked into mechanical energy and storing the mechanical energy in the form of electric energy in the storage battery. The main principle of the existing energy-saving automobile is as follows: when the driver presses the brake pedal, the brake system and the brake energy recovery system start to work simultaneously, and the generator starts to work to charge the storage battery.
In the process of researching the application, the researcher finds that if a driver lightly steps on a brake pedal, the required braking moment is not large, so that the generator and the engine cannot be completely connected, the clutch can be in a semi-linkage state, the driving part and the driven part in the clutch can relatively slide to generate friction heat to consume energy, and the kinetic energy of the engine is consumed by the clutch in the form of heat, so that the recovery rate of the braking energy is influenced.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a braking energy recovery system and an energy-saving vehicle, so as to effectively improve the above-mentioned problems.
Embodiments of the present invention are implemented as follows:
The embodiment of the invention provides a braking energy recovery system, which comprises: a multi-tap synchronous generator, an electric change-over switch and a storage battery. The multi-tap synchronous generator comprises a rotor winding and a tap type stator winding axially arranged along the rotating shaft direction of the rotor winding, the tap type stator winding comprises a first wiring terminal used for being connected with the electric change-over switch, the first wiring terminal comprises a plurality of groups of contacts, each group of contacts is composed of at least one phase of contacts, a plurality of contacts are led out from the same turn number position according to a preset interval turn number when each phase of stator winding is wound, and the contacts with the same turn number are used as a group of contacts according to the order of leading out the contacts. The electric change-over switch is respectively connected with the multi-tap synchronous generator and the storage battery, and the number of turns communicated with the tap type stator winding is adjusted by controlling the electric change-over switch, so that the reverse torque of the multi-tap synchronous generator is adjusted, and the output current of the multi-tap synchronous generator is adjusted.
In an alternative embodiment of the invention, the electric switch is provided with a second connection terminal corresponding to the first connection terminal, so as to connect the outgoing lines of the tapped stator winding; and the motor is also provided with a driving device and a metal sliding piece, one side of the metal sliding piece is used for being in sliding connection with the second wiring terminal, an output terminal used for being connected with the storage battery is outwards led out from the other side of the metal sliding piece, and the number of turns of the tap-type stator winding is adjusted and communicated by the metal sliding piece under the driving of the driving device.
In an alternative embodiment of the invention, the first terminal comprises a plurality of sets of single phase contacts and the second terminal comprises the same number of contacts as the first terminal.
In an alternative embodiment of the invention, the first terminal comprises a plurality of sets of two-phase contacts and the second terminal comprises the same number of sets of two-phase contacts as the first terminal; the metal sliding piece is used for being connected with each group of double-phase contacts in the second wiring terminal in a sliding mode.
In an alternative embodiment of the invention, the first connection terminal comprises a plurality of sets of three-phase contacts; the second wiring terminal comprises three-phase contacts with the same group number as the first wiring terminal; the metal sliding piece is used for being connected with each group of three-phase contacts in the second wiring terminal in a sliding mode.
In an alternative embodiment of the invention, the rotor winding is a single winding that is dc-excited.
In an alternative embodiment of the present invention, the first connection terminal includes multiple groups of two-phase contacts, the second connection terminal includes two paths of contacts, and the number of contacts included in each path of contacts is the same as the number of contacts in the first connection terminal; the metal sliding piece comprises a first sliding piece and a second sliding piece, one side of the first sliding piece is used for being in sliding connection with one path of contact in the second wiring terminal, the other side of the first sliding piece is outwards led out to be used for being connected with an output terminal connected with the storage battery, one side of the second sliding piece is used for being in sliding connection with the other path of contact in the second wiring terminal, and the other side of the second sliding piece is outwards led out to be used for being connected with the output terminal connected with the storage battery.
In an alternative embodiment of the invention, the first connection terminal comprises a plurality of sets of three-phase contacts; the second wiring terminal comprises three paths of contacts, and the number of the contacts contained in each path of contacts is the same as the number of the contacts in the group in the first wiring terminal; the metal sliding piece comprises a first sliding piece, a second sliding piece and a third sliding piece, wherein one side of the first sliding piece is used for being in sliding connection with a contact of a first path in the second wiring terminal, an output terminal connected with the storage battery is outwards led out from the other side of the first sliding piece, one side of the second sliding piece is used for being in sliding connection with a contact of a second path in the second wiring terminal, an output terminal connected with the storage battery is outwards led out from the other side of the second sliding piece, one side of the third sliding piece is used for being in sliding connection with a contact of a third path in the second wiring terminal, and an output terminal connected with the storage battery is outwards led out from the other side of the third sliding piece.
In an alternative embodiment of the present invention, the metal slide is a copper slide switch.
The embodiment of the invention also provides an energy-saving automobile, which comprises: the braking energy recovery system described above.
The braking energy recovery system provided by the embodiment of the invention comprises: a multi-tap synchronous generator, an electric change-over switch and a storage battery. The generator comprises a rotor winding and a tap-type stator winding axially arranged along the rotating shaft direction of the rotor winding, wherein the stator winding comprises a first wiring terminal used for being connected with an electric change-over switch, the first wiring terminal comprises a plurality of groups of contacts, each group of contacts consists of at least one phase of contacts, a plurality of contacts are led out from the same turn number position according to a preset interval turn number when each phase of stator winding is wound, and the contacts with the same turn number are used as a group of contacts. The motor-driven change-over switch is respectively connected with the generator and the storage battery, and the number of turns of the stator winding of the connected tap type is adjusted by controlling the motor-driven change-over switch, so that the reverse torque of the multi-tap synchronous generator is adjusted, and the output current of the generator is adjusted. The number of turns of the tap-type stator winding which is turned on is gradually adjusted and increased through the electric change-over switch, so that the reverse torque of the generator is gradually increased to present a good linear relation, the reverse torque output by the generator is adjustable, and the purpose of improving the braking energy recovery rate is achieved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings. Like reference numerals refer to like parts throughout the several views of the drawings. The drawings are not intended to be drawn to scale, with emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 shows a schematic structural diagram of a braking energy recovery system according to an embodiment of the present invention.
Fig. 2 shows a schematic winding diagram of a stator winding of a multi-tap synchronous generator according to an embodiment of the present invention.
Fig. 3 shows a schematic structural diagram of an electric switch according to an embodiment of the present invention.
Fig. 4 shows a schematic structural diagram of another electric switch according to an embodiment of the present invention.
Fig. 5 shows a schematic structural diagram of an energy-saving automobile according to an embodiment of the present invention.
Icon: 100-braking energy recovery system; 110-multi-tap synchronous generator; 120-an electric change-over switch; 130-a battery; 200-energy-saving automobile; 210-electronically controlled braking system; 220-clutch; 230-mechanical braking system.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
At present, when the vehicle brakes and decelerates, the engine drives the generator to rotate through the clutch, the counter electromotive force generated by the generator has a counter torque effect on the engine, namely a braking effect, and meanwhile, the generator generates current and recovers electric energy through a braking energy recovery system. The braking energy recovery system is a system for converting thermal energy generated when the automobile is braked into mechanical energy and storing the mechanical energy in the form of electric energy in the storage battery. The main principle of the existing energy-saving automobile is as follows: when the driver presses the brake pedal, the brake system and the brake energy recovery system start to work simultaneously, and the generator starts to work to charge the storage battery.
In the process of researching the application, the researcher finds that if a driver lightly steps on a brake pedal, the required braking moment is not large, so that the generator and the engine cannot be completely connected, the clutch can be in a semi-linkage state, the driving part and the driven part in the clutch can relatively slide to generate friction heat to consume energy, and the kinetic energy of the engine is consumed by the clutch in the form of heat, so that the recovery rate of the braking energy is influenced. Further researches find that the brake energy recovery system for the energy-saving automobile at present has the following problems;
the generator is a group of windings, namely, a, b and c three phases respectively have a complete winding, and the three phases are collectively called a group of windings. When the generator works, all windings are put into operation at the same time, and the reverse torque generated by the generator cannot be adjusted. The longer the clutch is in the semi-engaged state, the more engine energy is consumed by the clutch. If the generator and the engine are suddenly and completely engaged, the reverse torque of the generator is maximum, so that the automobile can feel a jerk in running, and the driving stability is affected.
The present invention is directed to a method for manufacturing a semiconductor device, and a semiconductor device manufactured by the method.
Based on the analysis of the reasons, in order to reduce the energy consumption of the clutch, improve the recovery rate of braking energy, ensure the comfort of the automobile during braking, and shorten the half-linkage state time of the clutch as much as possible, the generator is made into a generator with adjustable output reverse torque. In view of this, an embodiment of the present invention provides a braking energy recovery system 100, as shown in FIG. 1. The braking energy recovery system 100 includes: a multi-tap synchronous generator 110, an electric switch 120, and a battery 130.
The basic principle of the multi-tap synchronous generator 110 is similar to that of the existing synchronous generator, and mainly comprises a rotor winding and a tap-type stator winding axially arranged along the rotation axis direction of the rotor winding, wherein the tap-type stator winding is connected in a star connection manner, and comprises a first connection terminal for connecting with the electric change-over switch 120. The first connection terminal includes a plurality of groups of contacts, each group of contacts is formed by at least one phase contact, when winding each phase stator winding, each phase winding starts to draw a plurality of contacts (taps) according to a preset interval turns from the same turn position, the contacts with the same turn number are used as one group of contacts according to the order of drawing the contacts, as shown in fig. 2 (wherein, this embodiment only shows the case that the first connection terminal includes a plurality of groups of three-phase contacts, and the rest is similar to the case), for example, when winding each phase stator winding, each phase winding starts to draw a first contact from the same turn position, then draws a second contact at regular turn positions, and so on until all windings are finished, namely, N contacts are drawn, the head end of each phase winding is used as the current output end of the generator, the winding contacts are respectively divided into a group, b group and c group of contacts according to the drawing order, and all the contacts are connected to the electric switch 120. The multi-tap synchronous generator 110 is an improvement on the basis of the existing synchronous generator, and an existing stator winding is improved to be a tap stator winding, namely, an existing single wire outlet mode is changed to be a wire outlet mode of a plurality of groups of contacts, so that the reverse torque generated by the generator can be adjusted. Wherein the multi-tap synchronous generator 110 may be single phase, two phase or three phase. When the multi-tap synchronous generator 110 is single-phase, the multi-tap synchronous generator includes multiple sets of single-phase contacts, e.g., a1, a2, … …, an. When the multi-tap synchronous generator 110 is two-phase, the first connection terminal contains multiple sets of two-phase contacts, e.g., a1, b1; a2, b2; … …; an, bn. When the multi-tap synchronous generator 110 is three-phase, the first connection terminal contains multiple sets of three-phase contacts, e.g., a1, b1, c1; a2, b2, c2; … …; an, bn, cn.
Wherein, the rotor winding is a single winding of direct current excitation.
The electric change-over switch 120 is respectively connected with the multi-tap synchronous generator 110 and the storage battery 130, and the number of turns communicated with the tap type stator winding is adjusted by controlling the electric change-over switch 120, so that the reverse torque of the multi-tap synchronous generator 110 is adjusted, and the output current of the multi-tap synchronous generator 110 is adjusted.
As an alternative embodiment, as shown in fig. 3 (in which the present embodiment only shows a case where a first connection terminal includes a plurality of sets of three-phase contacts, and the rest are similar), the electric changeover switch 120 is provided with a second connection terminal corresponding to the first connection terminal so as to connect the lead wires of the tapped stator windings; and a driving device and a metal sliding piece are further arranged, one side of the metal sliding piece is used for being in sliding connection with the second wiring terminal, an output terminal used for being connected with the storage battery 130 is outwards led out from the other side of the metal sliding piece, and the number of the stator windings which are communicated with each other is regulated by the metal sliding piece under the driving of the driving device.
When the first connecting terminal comprises a plurality of groups of single-phase contacts, correspondingly, the second connecting terminal comprises road contacts, at this time, the number of the metal sliding sheets is one, and as an implementation mode, when the metal sliding sheets are in sliding connection with the contacts in the second connecting terminal under the driving of the driving device, the metal sliding sheets can be sequentially connected based on the sequence from left to right or from right to left, for example, when a driver does not press a brake pedal, the metal sliding sheets are not communicated with a stator winding, namely, at this time, the engine and the multi-tap synchronous generator 110 are disconnected through a clutch, and the generator does not rotate and does not work. When the brake pedal is stepped on, the driving device is controlled to drive the metal sliding plate to be communicated with the first group of contacts, and the engine drives the multi-tap synchronous generator 110 to rotate for generating electricity; as the brake pedal force increases, the number of turns on (the metal wiper slides from left to right or from right to left, and contacts on the leftmost or rightmost side are contacted in turn), and as the number of turns on the stator winding increases, the braking torque of the multi-tap synchronous generator 110 increases gradually, and the charging current increases gradually.
When the first connecting terminal comprises a plurality of groups of double-phase contacts, the second connecting terminal correspondingly comprises two paths of contacts, the number of the contacts contained in each path of contacts is the same as the number of the groups of contacts in the first connecting terminal, and at the moment, the number of the metal sliding sheets is 2, namely the metal sliding sheets comprise a first sliding sheet and a second sliding sheet. The metal sliding piece comprises a first sliding piece and a second sliding piece, one side of the first sliding piece is used for being in sliding connection with a contact of one path in the second wiring terminal, an output terminal used for being connected with the storage battery 130 is outwards led out from the other side of the first sliding piece, one side of the second sliding piece is used for being in sliding connection with a contact of the other path in the second wiring terminal, and an output terminal used for being connected with the storage battery 130 is outwards led out from the other side of the second sliding piece.
When the first connecting terminal comprises a plurality of groups of three-phase contacts, for example, when the first connecting terminal comprises an A-phase connecting terminal, a B-phase connecting terminal and a C-phase connecting terminal, correspondingly, the second connecting terminal comprises three-way contacts, the number of the contacts contained in each way of contacts is the same as the number of the groups of contacts in the first connecting terminal, at the moment, the number of the metal sliding sheets is 3, namely, the metal sliding sheets comprise a first sliding sheet, a second sliding sheet and a third sliding sheet. One side of the first sliding vane is used for being in sliding connection with a contact of a first path in the second wiring terminal, an output terminal used for being connected with the storage battery 130 is outwards led out from the other side of the first sliding vane, one side of the second sliding vane is used for being in sliding connection with a contact of a second path in the second wiring terminal, an output terminal used for being connected with the storage battery 130 is outwards led out from the other side of the second sliding vane, one side of the third sliding vane is used for being in sliding connection with a contact of a third path in the second wiring terminal, and an output terminal used for being connected with the storage battery 130 is outwards led out from the other side of the third sliding vane.
The communication mode of the contact of each phase and the sliding sheet is the same as that of the single-phase contact and the sliding sheet. When the first terminal is two-phase or three-phase, the communication of each slide with each phase contact is synchronized, e.g., when the first slide slides from a1 to a2 contact, the second slide slides from b1 to b2 contact, the third slide slides from c1 to c2 contact, and each slide communicates with only a corresponding one at a time.
As can be seen from the above description, the number of the sliding pieces of the metal sliding piece of the electric switch 120 in the first embodiment changes with the phase number of the multi-tap synchronous generator 110, that is, when the multi-tap synchronous generator 110 is single-phase, the number of the sliding pieces of the metal sliding piece is 1; when the sliding sheets are two phases, the number of the sliding sheets is 2; in the case of three phases, the number of sliding sheets is 3.
As another alternative, as shown in fig. 4 (in which the present embodiment only shows a case where the first connection terminal includes plural sets of three-phase contacts, and the rest are similar), regardless of the phase number of the multi-tap synchronous generator 110,
The number of sliding pieces of the metal sliding piece of the electric change-over switch 120 is only one, and at this time, the second connection terminal includes a plurality of sets of contacts, and the number of each set of contacts is determined by the number of phases of the multi-tap synchronous generator 110, for example, in a single phase, each set of contacts is formed by 1 contact, that is, the second connection terminal includes the same number of contacts as the first connection terminal; in the case of two phases, each set of contacts is constituted by two contacts, i.e. the second terminal comprises the same number of sets of two-phase contacts as the first terminal, and the metal wiper is adapted to slidingly connect with each set of two-phase contacts in the second terminal. In the case of three phases, each set of contacts is made up of 3 contacts, for example A, B, C three phases, i.e. the second terminal contains the same number of three-phase contacts as the first terminal, and the metal wiper is adapted to slidingly connect with each set of three-phase contacts in the second terminal. For easy understanding, three phases are taken as an example to describe, that is, each group of contacts consists of A, B, C contacts, and lead wires of the first group, the second group and the straight Nth group of stator windings are correspondingly connected, for example, the first group of contacts are a1, b1 and c1; the second group of contacts are a2, b2 and c2; the N-th set of contacts are an, bn, cn. In this case, the metal slider is connected to one set of contacts each time by sliding the contacts, that is, is connected to only one set of contacts each time. Wherein the metal slide communicates with each set of contacts in the same manner as described above.
In one alternative embodiment, the metal sliding plate is a copper sliding switch.
Wherein, the driving device comprises a micro motor so as to drive the metal slide plate to move left and right.
Wherein, because the multi-tap synchronous generator 110 comprises a plurality of groups of contacts, the number of turns turned on is gradually adjusted and increased by the electric change-over switch 120, the reverse torque of the multi-tap synchronous generator 110 can be gradually increased to present a better linear relationship. When the number of turns of the stator winding is enough, the smoothness of the automobile during braking can be ensured, so that the aims of shortening the half-linkage state time of the clutch, reducing the heat loss and improving the braking energy recovery rate are fulfilled.
The present embodiment also provides an energy-saving vehicle 200, as shown in fig. 5, where the energy-saving vehicle 200 includes an electronically controlled braking system 210, a clutch 220, a mechanical braking system 230, an engine, and the braking energy recovery system 100 according to any one of the foregoing embodiments. The electronically controlled brake system 210 is connected to the clutch 220, the mechanical brake system 230 and the electric switch 120, respectively, and the electronically controlled brake system 210 controls the degree of engagement between the engine and the multi-tap synchronous generator 110 by controlling the clutch 220. When the driver does not depress the brake pedal, the engine and generator are disconnected by clutch 220 and the generator does not rotate and does not operate. When the brake pedal is depressed, the electronically controlled brake system 210 controls the clutch 220 to be in a full linkage working state, so that the multi-tap synchronous generator 110 is fully engaged with an engine, and the engine drives the multi-tap synchronous generator 110 to rotate for generating electricity; and controlling the electric change-over switch 120 to adjust the number of turns communicating with the tapped stator windings, thereby adjusting the reverse torque of the multi-tap synchronous generator 110 and adjusting the output current of the multi-tap synchronous generator 110. When the braking torque required by the automobile during braking is not large, the braking torque is completely provided by the reverse torque of the multi-tap synchronous generator 110; as the number of turns of the tapped stator winding increases, the reverse torque of the multi-tap synchronous generator 110 increases gradually, and the charging current increases gradually, when the electric switch 120 turns on the N-th set of contacts of the tapped stator winding, the reverse torque of the multi-tap synchronous generator 110 reaches the maximum, and the charging current also reaches the maximum, and if at this time, the braking torque required for braking the automobile is still not reached, the mechanical braking system 230 is started.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A braking energy recovery system, comprising: a multi-tap synchronous generator, an electric change-over switch and a storage battery;
The multi-tap synchronous generator comprises a rotor winding and a tap type stator winding axially arranged along the rotating shaft direction of the rotor winding, the tap type stator winding comprises a first wiring terminal used for being connected with the electric change-over switch, the first wiring terminal comprises a plurality of groups of contacts, each group of contacts consists of at least one phase of contacts, a plurality of contacts are led out from the same turn number position according to a preset interval turn number when each phase of stator winding is wound, and the contacts with the same turn number are used as a group of contacts according to the order of leading out the contacts;
The electric change-over switch is respectively connected with the multi-tap synchronous generator and the storage battery, and the number of turns communicated with the tap type stator winding is adjusted by controlling the electric change-over switch, so that the reverse torque of the multi-tap synchronous generator is adjusted, and the output current of the multi-tap synchronous generator is adjusted;
The electric change-over switch is provided with a second wiring terminal corresponding to the first wiring terminal so as to connect outgoing lines of the tapped stator winding; the metal sliding piece is used for being in sliding connection with the second wiring terminal, an output terminal used for being connected with the storage battery is outwards led out from the other side of the metal sliding piece, and the number of turns communicated with the tap type stator winding is adjusted by the metal sliding piece under the driving of the driving device;
Wherein the multi-tap synchronous generator is a dual-phase multi-tap synchronous generator;
The first wiring terminal comprises a plurality of groups of double-phase contacts, and the second wiring terminal comprises the same number of double-phase contacts as the first wiring terminal; the metal sliding piece is used for being in sliding connection with each group of double-phase contacts in the second wiring terminal;
The metal sliding piece is a copper sliding switch.
2. The braking energy recovery system according to claim 1, wherein the first connection terminal includes a plurality of sets of two-phase contacts, the second connection terminal includes two paths of contacts, and each path of contacts includes the same number of contacts as the sets of contacts in the first connection terminal; the metal sliding piece comprises a first sliding piece and a second sliding piece, one side of the first sliding piece is used for being in sliding connection with one path of contact in the second wiring terminal, the other side of the first sliding piece is outwards led out to be used for being connected with an output terminal connected with the storage battery, one side of the second sliding piece is used for being in sliding connection with the other path of contact in the second wiring terminal, and the other side of the second sliding piece is outwards led out to be used for being connected with the output terminal connected with the storage battery.
3. Braking energy recovery system according to any one of claims 1-2, wherein the rotor winding is a single winding that is dc-excited.
4. A braking energy recovery system, comprising: a multi-tap synchronous generator, an electric change-over switch and a storage battery;
The multi-tap synchronous generator comprises a rotor winding and a tap type stator winding axially arranged along the rotating shaft direction of the rotor winding, the tap type stator winding comprises a first wiring terminal used for being connected with the electric change-over switch, the first wiring terminal comprises a plurality of groups of contacts, each group of contacts consists of at least one phase of contacts, a plurality of contacts are led out from the same turn number position according to a preset interval turn number when each phase of stator winding is wound, and the contacts with the same turn number are used as a group of contacts according to the order of leading out the contacts;
The electric change-over switch is respectively connected with the multi-tap synchronous generator and the storage battery, and the number of turns communicated with the tap type stator winding is adjusted by controlling the electric change-over switch, so that the reverse torque of the multi-tap synchronous generator is adjusted, and the output current of the multi-tap synchronous generator is adjusted;
The electric change-over switch is provided with a second wiring terminal corresponding to the first wiring terminal so as to connect outgoing lines of the tapped stator winding; the metal sliding piece is used for being in sliding connection with the second wiring terminal, an output terminal used for being connected with the storage battery is outwards led out from the other side of the metal sliding piece, and the number of turns communicated with the tap type stator winding is adjusted by the metal sliding piece under the driving of the driving device;
Wherein the multi-tap synchronous generator is a three-phase multi-tap synchronous generator;
The metal sliding piece is a copper sliding switch.
5. The braking energy recovery system according to claim 1, wherein the first connection terminal includes a plurality of sets of three-phase contacts; the second wiring terminal comprises three-phase contacts with the same group number as the first wiring terminal; the metal sliding piece is used for being connected with each group of three-phase contacts in the second wiring terminal in a sliding mode.
6. The braking energy recovery system according to any one of claims 4 to 5, wherein the rotor winding is a single winding that is dc-excited.
7. The braking energy recovery system according to claim 4, wherein the first connection terminal includes a plurality of sets of three-phase contacts; the second wiring terminal comprises three paths of contacts, and the number of the contacts contained in each path of contacts is the same as the number of the contacts in the group in the first wiring terminal; the metal sliding piece comprises a first sliding piece, a second sliding piece and a third sliding piece, wherein one side of the first sliding piece is used for being in sliding connection with a contact of a first path in the second wiring terminal, an output terminal connected with the storage battery is outwards led out from the other side of the first sliding piece, one side of the second sliding piece is used for being in sliding connection with a contact of a second path in the second wiring terminal, an output terminal connected with the storage battery is outwards led out from the other side of the second sliding piece, one side of the third sliding piece is used for being in sliding connection with a contact of a third path in the second wiring terminal, and an output terminal connected with the storage battery is outwards led out from the other side of the third sliding piece.
8. An energy efficient vehicle, comprising: the braking energy recovery system according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527092.7A CN108501730B (en) | 2018-05-28 | 2018-05-28 | Braking energy recovery system and energy-saving automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527092.7A CN108501730B (en) | 2018-05-28 | 2018-05-28 | Braking energy recovery system and energy-saving automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108501730A CN108501730A (en) | 2018-09-07 |
| CN108501730B true CN108501730B (en) | 2024-06-11 |
Family
ID=63401687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810527092.7A Active CN108501730B (en) | 2018-05-28 | 2018-05-28 | Braking energy recovery system and energy-saving automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108501730B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190517248A (en) * | 1905-08-25 | 1906-07-05 | Ernest William Hart | Improvements in and connected with the Propulsion of Railway, Tramway, Road or similar Vehicles, Boats and the like. |
| CN101005259A (en) * | 2007-01-15 | 2007-07-25 | 陈亚洲 | Generation and transforming system of multiple stage regulating power |
| JP2007236179A (en) * | 2006-03-02 | 2007-09-13 | Sofutoronikusu Kk | Motor device |
| RU2008109387A (en) * | 2008-03-14 | 2009-09-20 | Открытое Акционерное Общество "Агрегатное Конструкторское Бюро "Якоръ" (Ru) | ELECTRIC DRIVE WHEELS OF A CAR |
| CN101719657A (en) * | 2009-12-24 | 2010-06-02 | 中国电力科学研究院 | System and method for simulating internal fault of electric generator |
| CN104753160A (en) * | 2015-04-21 | 2015-07-01 | 山东理工大学 | Car starting power generator and control device thereof |
| CN208439088U (en) * | 2018-05-28 | 2019-01-29 | 广东电网有限责任公司 | A kind of brake energy recovering system and energy-saving automobile |
-
2018
- 2018-05-28 CN CN201810527092.7A patent/CN108501730B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190517248A (en) * | 1905-08-25 | 1906-07-05 | Ernest William Hart | Improvements in and connected with the Propulsion of Railway, Tramway, Road or similar Vehicles, Boats and the like. |
| JP2007236179A (en) * | 2006-03-02 | 2007-09-13 | Sofutoronikusu Kk | Motor device |
| CN101005259A (en) * | 2007-01-15 | 2007-07-25 | 陈亚洲 | Generation and transforming system of multiple stage regulating power |
| RU2008109387A (en) * | 2008-03-14 | 2009-09-20 | Открытое Акционерное Общество "Агрегатное Конструкторское Бюро "Якоръ" (Ru) | ELECTRIC DRIVE WHEELS OF A CAR |
| CN101719657A (en) * | 2009-12-24 | 2010-06-02 | 中国电力科学研究院 | System and method for simulating internal fault of electric generator |
| CN104753160A (en) * | 2015-04-21 | 2015-07-01 | 山东理工大学 | Car starting power generator and control device thereof |
| CN208439088U (en) * | 2018-05-28 | 2019-01-29 | 广东电网有限责任公司 | A kind of brake energy recovering system and energy-saving automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108501730A (en) | 2018-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101568445B (en) | Electric vehicle control device | |
| CN102079250B (en) | Brushless double-fed motor driving system of electric vehicle and control method thereof | |
| CN101814819B (en) | Independent sinusoidal driving permanent magnet synchronous fault-tolerant linear motor | |
| CN201626316U (en) | Brushless double-fed motor driving device of electric automobile | |
| JPH05506769A (en) | Multi-motor fan device with improved speed control | |
| CN104972903B (en) | A kind of motor driven systems and its control method with automatic switching capabilities | |
| CN108501731B (en) | Braking energy recovery system and energy-saving automobile | |
| JP2002345109A (en) | Hybrid vehicle | |
| CN102593978A (en) | Double-winding permanent-magnet brushless servo motor for servo press machine | |
| CN105291863A (en) | Electric driving system of dumper | |
| Liang et al. | A vehicle electric power generation system with improved output power and efficiency | |
| CN205220403U (en) | Tipper electricity transmission system | |
| CN106992620A (en) | Electric car multi winding multi speed magneto | |
| CN108501730B (en) | Braking energy recovery system and energy-saving automobile | |
| CN2452199Y (en) | Large low-speed torque permasyn motor | |
| CN107117041B (en) | Eddy current liquid cooling retarder with electric energy recycling function | |
| CN101402322A (en) | Control method of brushless DC motor in operation of electric car and hybrid power car | |
| CN101630875B (en) | Multifunctional motor of electric vehicle | |
| CN103580433B (en) | Starter motor for starting equipment | |
| CN209454574U (en) | The throttle and magnetic brake and power generation integrated system of electric car | |
| CN208439087U (en) | A kind of brake energy recovering system and energy-saving automobile | |
| CN208439088U (en) | A kind of brake energy recovering system and energy-saving automobile | |
| JP5128709B1 (en) | Non-sinusoidal drive motor | |
| CN100490275C (en) | Vehicle-mounted starting and generating multi-functional motor and method for manufacturing the same | |
| CN201504124U (en) | Efficient energy-saving unidirectional/bidirectional-sliding DC motor of electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |