CN113306399A - Braking energy recovery method and device for improving braking performance of whole vehicle - Google Patents
Braking energy recovery method and device for improving braking performance of whole vehicle Download PDFInfo
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- CN113306399A CN113306399A CN202110509773.2A CN202110509773A CN113306399A CN 113306399 A CN113306399 A CN 113306399A CN 202110509773 A CN202110509773 A CN 202110509773A CN 113306399 A CN113306399 A CN 113306399A
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- potential energy
- braking
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- energy body
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- 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
Abstract
The invention relates to the field of braking energy recovery, and discloses a braking energy recovery method and a braking energy recovery system for improving the braking performance of an entire automobile, which comprise a potential energy body, a lifter, a buffer linkage rod, a transmission gear set and a limiting device, wherein the potential energy body is arranged above a chassis of an automobile body and is provided with a space, the lifter is connected below the potential energy body, the lifter is connected with the chassis of the automobile body through the buffer linkage rod, the transmission gear drives the buffer linkage rod to move, and the transmission gear set is used for transmitting the potential energy body and the mechanical energy of the automobile body; the limiting device is arranged above the potential energy body and used for fixing and releasing the potential energy body. According to the invention, the braking force generated when the automobile is braked is recovered, the braking force is converted into potential energy, the pressure of wheels on the ground is increased while the potential energy is converted, the pitching of the automobile is inhibited, the braking performance is improved, and the braking distance is reduced; meanwhile, when the automobile is started, the driving force is improved by releasing the accumulated potential energy, and the starting time and the starting cost are reduced.
Description
Technical Field
The invention relates to the field of braking energy recovery, in particular to a braking energy recovery method and a braking energy recovery device for improving the braking performance of a whole vehicle.
Background
The pure electric vehicle is receiving more and more attention and popularization as a new energy vehicle, and the power battery is used as the only energy source of the pure electric vehicle to provide energy for the motor, but due to the bottleneck of the battery technology, the energy density of the battery is low at present, so that the endurance of the pure electric vehicle is not ideal.
The energy recovery system is one of effective means for prolonging the endurance of the pure electric vehicle, and the kinetic energy lost in the braking process of the vehicle is converted into electric energy through the motor for recycling by utilizing the regenerative braking function of the motor, so that the overall energy consumption of the pure electric vehicle can be reduced, and the endurance can be prolonged.
The existing control method for recovering the regenerative braking energy of the rear axle driven pure electric automobile comprises the following steps: a braking energy recovery control method of optimal braking performance and a braking energy recovery control method of optimal braking energy recovery efficiency based on an I-curve (ideal braking curve); the braking energy recovery control method based on the optimal braking performance of the I curve has the disadvantages that the braking force of the front axle and the braking force of the rear axle are distributed according to the I curve, so that the situation that the braking force is completely provided by the motor when the braking strength is small does not exist, and the braking energy recovery efficiency is too low; the method for controlling the recovery of the braking energy with the optimal recovery efficiency of the braking energy has the defects that the braking force of an automobile is provided by the braking force of a motor as much as possible, so that the proportion of the braking force distribution of a front shaft and a rear shaft is not coordinated, the braking performance is not good enough, and the smoothness of the automobile is poor.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a braking energy recovery method and a braking energy recovery device for improving the braking performance of the whole vehicle.
In order to solve the above technical problems, the present invention is solved by the following technical solutions.
A braking energy recovery method for improving the braking performance of a whole vehicle comprises the following steps:
the method comprises the following steps that in the setting stage, a potential energy body is horizontally connected above a chassis of an automobile body, a distance is reserved between the potential energy body and the chassis of the automobile body, a lifter is arranged below the potential energy body, the lower end of the lifter is driven by a buffering linkage rod, the buffering linkage rod is arranged on the chassis, transmission gear sets are arranged on two sides of the bottom end of the buffering linkage rod, the buffering linkage rod can move through the transmission gear sets, and a limiting device is arranged at the upper end of the potential energy body and used for fixing the position of the potential energy body when the potential energy body rises;
in the braking force release stage, when the motor drives the chassis of the automobile body to run, the potential energy body is arranged at the highest position of the limiting device at the moment to release the gravitational potential energy of the potential energy body, the lifter drives the buffer connecting rod to move at a speed which is positive to the speed of the chassis of the automobile body, so that the kinetic energy is transmitted to the chassis of the automobile body, the starting speed of the automobile is increased until the speeds of the automobile and the chassis are balanced;
and in the braking force recovery stage, the movement speed of the chassis of the automobile body and the movement speed of the potential energy body form a negative speed difference, so that the transmission gear set drives the buffering linkage rod connected with the potential energy body, the kinetic energy is transmitted to the lifter and the potential energy body is lifted to form potential energy until the speeds of the two are balanced, and the position of the lifted potential energy body is fixed by the limiting device.
Preferably, the mass of the potential energy body is calculated according to the weight of the automobile and set.
Preferably, the limiting device comprises limiting plates, a telescopic spring, a velometer and a control chip, the telescopic spring is arranged on the inner side of each limiting plate and used for fixing the position of the potential energy body, the telescopic spring is controlled to stretch through a relay, the velometer is used for detecting the movement speed of the transmission gear set, and the control chip switches the relay according to the movement speed feedback.
Preferably, the transmission gear set transmits through a force transmission belt assembly, the force transmission belt assembly comprises a transmission belt and a transmission shaft, and the transmission belt is connected between the transmission shaft and the axle for transmission.
A braking energy recovery device for improving the braking performance of the whole vehicle comprises a potential energy body, a lifter, a buffering linkage rod, a transmission gear set and a limiting device, wherein the potential energy body is arranged above a chassis of a vehicle body and a space is reserved; the limiting device is arranged above the potential energy body and used for fixing and releasing the potential energy body.
Preferably, the mass of the potential energy body is set by calculation based on the weight of the vehicle.
Preferably, the limiting device comprises limiting plates, a telescopic spring, a velometer and a control chip, the telescopic spring is arranged on the inner side of each limiting plate and used for fixing the position of the potential energy body, the telescopic spring is controlled to stretch through a relay, the velometer is used for detecting the movement speed of the transmission gear set, and the control chip switches the relay according to the movement speed feedback.
Preferably, the transmission gear set is connected with a force transmission belt assembly for transmission, the force transmission belt assembly comprises a transmission belt and a transmission shaft, and the transmission belt is connected between the transmission shaft and an axle for transmission.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: according to the invention, the braking force generated when the automobile is braked is recovered, the braking force is converted into potential energy, the pressure of wheels on the ground is increased while the potential energy is converted, the pitching of the automobile is inhibited, the braking performance is improved, and the braking distance is reduced; meanwhile, when the automobile is started, the driving force is improved by releasing the accumulated potential energy, and the starting time and the starting cost are reduced.
Drawings
FIG. 1 is a schematic flow chart of a braking energy recovery method for improving braking performance of a whole vehicle according to the present invention;
FIG. 2 is a schematic cross-sectional view of a braking energy recovery device for improving the braking performance of the whole vehicle according to the present invention;
FIG. 3 is a schematic perspective view of a braking energy recovery device for improving braking performance of a whole vehicle according to the present invention;
fig. 4 is a schematic view of the operation principle of the limiting device in the invention.
In the figure: 1-chassis, 2-potential energy body, 3-riser, 4-buffering trace, 5-drive gear group, 61-limiting plate, 62-expanding spring 62, 71-drive belt, 72-transmission shaft.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1, which shows a schematic flow chart of a braking energy recovery method for improving braking performance of a whole vehicle provided in an embodiment of the present application, a braking energy recovery method for improving braking performance of a whole vehicle provided in an embodiment of the present application may include the following steps:
the method comprises the steps that a potential energy body 2 is horizontally connected above a chassis 1 of an automobile body, a distance is reserved between the potential energy body 2 and the chassis 1 of the automobile body, a lifter 3 is arranged below the potential energy body 2, the lower end of the lifter 3 is driven by a buffering linkage rod, a buffering linkage rod 4 is arranged on the chassis 1, transmission gear sets 5 are arranged on two sides of the bottom end of the buffering linkage rod, the buffering linkage rod can move through the transmission gear sets 5, and a limiting device is arranged at the upper end of the potential energy body 2 and used for fixing the position of the potential energy body 2 when the potential energy body 2 rises;
in the braking force release stage, when the motor drives the chassis 1 of the automobile body to run, the potential energy body 2 is arranged at the highest position of the limiting device at the moment to release the gravitational potential energy of the potential energy body 2, the lifter 3 drives the movement speed of the buffer connecting rod to form a positive speed difference with the movement speed of the chassis 1 of the automobile body, so that the kinetic energy is transmitted to the chassis 1 of the automobile body, the starting speed of the automobile is increased, and the speed of the automobile is balanced;
in the braking force recovery stage, the movement speed of the chassis 1 of the automobile body and the movement speed of the potential energy body 2 form a negative speed difference, so that the transmission gear set 5 drives the buffering linkage rod connected with the potential energy body 2 in a shape, the kinetic energy is transmitted to the lifter 3 and the potential energy body 2 is lifted to form potential energy, and the position of the lifted potential energy body 2 is fixed by the limiting device until the speeds of the two are balanced.
In this embodiment, the potential energy body 2 may be some parts in the automobile, such as a battery pack, an air storage tank, and the like, and according to such an arrangement, the cost of the automobile itself for achieving the braking effect can be reduced, and the braking effect can be improved.
In the embodiment, the mass of the potential energy body 2 is calculated and set according to the weight of the automobile, if the mass of the whole automobile is large, the mass of the potential energy body 2 needs to be large, if the mass of the whole automobile is small, the mass of the potential energy body 2 needs to be small, the mass of the potential energy body 2 is adjusted according to the proportion, and the proportion can be adjusted according to different performances of the automobile engine.
In this embodiment, stop device includes limiting plate 61, expanding spring 62, velometer and control chip, and expanding spring 62 sets up two limiting plate 61 inboards for 2 positions of fixed potential energy body, and expanding spring 62 is flexible through relay control, and the velometer is used for detecting the velocity of motion of drive gear group 5, and control chip carries out the switch to the relay according to the velocity of motion feedback. When the control chip obtains positive speed feedback, the telescopic spring 62 supports the potential energy body 2 to lift so as to assist the potential energy body 2 to increase potential energy, and when the control chip obtains negative speed feedback, the telescopic spring 62 releases so that the potential energy body 2 descends to be converted into automobile kinetic energy, so that the purposes of recovering and converting braking energy are achieved.
The transmission gear set 5 performs transmission through a force transmission belt assembly, the force transmission belt assembly comprises a transmission belt 71 and a transmission shaft 72, and the transmission belt 71 is connected between the transmission shaft 72 and an axle for transmission.
The embodiment of the application also provides a braking energy recovery device for improving the braking performance of the whole vehicle, and as shown in fig. 2 and fig. 3, the braking energy recovery device for improving the braking performance of the whole vehicle provided by the embodiment of the application is shown in a schematic structural diagram, the braking energy recovery device comprises a potential energy body 2, a lifter 3, a buffering linkage rod 4, a transmission gear set 5 and a limiting device, the potential energy body 2 is arranged above a chassis 1 of a vehicle body and is provided with a space, the lifter 3 is connected below the potential energy body 2, the lifter 3 is connected with the chassis 1 of the vehicle body through the buffering linkage rod 4, the transmission gear drives the buffering linkage rod 4 to move, and the transmission gear set 5 is used for transmitting the potential energy body 2 and the mechanical energy of the vehicle body; the limiting device is arranged above the potential energy body 2 and used for fixing and releasing the potential energy body 2.
In this embodiment, the potential energy body 2 may be some parts in the automobile, such as a battery pack, an air storage tank, and the like, and according to such an arrangement, the cost of the automobile itself for achieving the braking effect can be reduced, and the braking effect can be improved.
In the embodiment, the mass of the potential energy body 2 is calculated and set according to the weight of the automobile, if the mass of the whole automobile is large, the mass of the potential energy body 2 needs to be large, if the mass of the whole automobile is small, the mass of the potential energy body 2 needs to be small, the mass of the potential energy body 2 is adjusted according to the proportion, and the proportion can be adjusted according to different performances of the automobile engine.
In this embodiment, as shown in the schematic diagram of fig. 4, stop device includes limiting plate 61, expanding spring 62, velometer and control chip, and expanding spring 62 sets up two limiting plates 61 inboards for 2 positions of fixed potential energy body, and expanding spring 62 is flexible through relay control, and the velometer is used for detecting the velocity of motion of drive gear group 5, and control chip carries out the switch to the relay according to the velocity of motion feedback. When the control chip obtains positive speed feedback, the telescopic spring 62 supports the potential energy body 2 to lift so as to assist the potential energy body 2 to increase potential energy, and when the control chip obtains negative speed feedback, the telescopic spring 62 releases so that the potential energy body 2 descends to be converted into automobile kinetic energy, so that the purposes of recovering and converting braking energy are achieved.
The transmission gear set 5 is connected with a force transmission belt assembly for transmission, the force transmission belt assembly comprises a transmission belt 71 and a transmission shaft 72, and the transmission belt 71 is connected between the transmission shaft 72 and an axle for transmission.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include elements inherent in the list. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In addition, parts of the above technical solutions provided in the embodiments of the present application, which are consistent with the implementation principles of corresponding technical solutions in the prior art, are not described in detail so as to avoid redundant description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A braking energy recovery method for improving the braking performance of a whole vehicle is characterized by comprising the following steps:
the method comprises the following steps that in the setting stage, a potential energy body is horizontally connected above a chassis of an automobile body, a distance is reserved between the potential energy body and the chassis of the automobile body, a lifter is arranged below the potential energy body, the lower end of the lifter is driven by a buffering linkage rod, the buffering linkage rod is arranged on the chassis, transmission gear sets are arranged on two sides of the bottom end of the buffering linkage rod, the buffering linkage rod can move through the transmission gear sets, and a limiting device is arranged at the upper end of the potential energy body and used for fixing the position of the potential energy body when the potential energy body rises;
in the braking force release stage, when the motor drives the chassis of the automobile body to run, the potential energy body is arranged at the highest position of the limiting device at the moment to release the gravitational potential energy of the potential energy body, the lifter drives the buffer connecting rod to move at a speed which is positive to the speed of the chassis of the automobile body, so that the kinetic energy is transmitted to the chassis of the automobile body, the starting speed of the automobile is increased until the speeds of the automobile and the chassis are balanced;
and in the braking force recovery stage, the movement speed of the chassis of the automobile body and the movement speed of the potential energy body form a negative speed difference, so that the transmission gear set drives the buffering linkage rod connected with the potential energy body, the kinetic energy is transmitted to the lifter and the potential energy body is lifted to form potential energy until the speeds of the two are balanced, and the position of the lifted potential energy body is fixed by the limiting device.
2. The braking energy recovery method for improving the braking performance of the whole vehicle according to claim 1, characterized in that: and calculating according to the weight of the automobile and setting the mass of the potential energy body.
3. The braking energy recovery method for improving the braking performance of the whole vehicle according to claim 1, characterized in that: stop device includes limiting plate, expanding spring, velometer and control chip, and expanding spring sets up two limiting plate inboards for fixed potential energy position, and expanding spring passes through relay control flexible, and the velometer is used for detecting the velocity of motion of drive gear group, and control chip carries out the switch to the relay according to the velocity of motion feedback.
4. The braking energy recovery method for improving the braking performance of the whole vehicle according to claim 1, characterized in that: the transmission gear group transmits through a force transmission belt assembly, the force transmission belt assembly comprises a transmission belt and a transmission shaft, and the transmission belt is connected between the transmission shaft and an axle for transmission.
5. The utility model provides an improve braking energy recovery unit of whole car braking performance which characterized in that: the automobile energy-saving device comprises a potential energy body, a lifter, a buffering linkage rod, a transmission gear set and a limiting device, wherein the potential energy body is arranged above a chassis of an automobile body and a space is reserved; the limiting device is arranged above the potential energy body and used for fixing and releasing the potential energy body.
6. The braking energy device for improving the braking performance of the whole vehicle according to claim 5, characterized in that: the mass of the potential energy body is calculated and set according to the weight of the automobile.
7. The braking energy device for improving the braking performance of the whole vehicle according to claim 5, characterized in that: stop device includes limiting plate, expanding spring, velometer and control chip, and expanding spring sets up two limiting plate inboards for fixed potential energy position, and expanding spring passes through relay control flexible, and the velometer is used for detecting the velocity of motion of drive gear group, and control chip carries out the switch to the relay according to the velocity of motion feedback.
8. The braking energy device for improving the braking performance of the whole vehicle according to claim 5, characterized in that: the transmission gear set is connected with a transmission belt assembly for transmission, the transmission belt assembly comprises a transmission belt and a transmission shaft, and the transmission belt is connected between the transmission shaft and an axle for transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110509773.2A CN113306399A (en) | 2021-05-11 | 2021-05-11 | Braking energy recovery method and device for improving braking performance of whole vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110509773.2A CN113306399A (en) | 2021-05-11 | 2021-05-11 | Braking energy recovery method and device for improving braking performance of whole vehicle |
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| CN113306399A true CN113306399A (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110509773.2A Pending CN113306399A (en) | 2021-05-11 | 2021-05-11 | Braking energy recovery method and device for improving braking performance of whole vehicle |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3122977A1 (en) * | 1981-06-10 | 1982-12-30 | Fritz 7770 Überlingen Koch | Method and arrangement for the recovery of braking energy in motor vehicles |
| CN1931621A (en) * | 2005-09-14 | 2007-03-21 | 刘虹邑 | Spring driven energy accumulating starting device and method for automobile |
| EP2450246A1 (en) * | 2010-11-03 | 2012-05-09 | ZanettiStudios S.r.l. | Energy recovering device for recovering energy in a vehicle |
| US20120192784A1 (en) * | 2011-01-28 | 2012-08-02 | Gideon Gimlan | Transportation device with reciprocating part and kinetic storage |
| CN102730604A (en) * | 2012-06-18 | 2012-10-17 | 三一集团有限公司 | Tandem hybrid fork lift truck |
| CN204077629U (en) * | 2014-09-16 | 2015-01-07 | 欧阳亮 | A kind of self-propelled vehicle recover kinetic energy discharges brake system again |
| CN208021423U (en) * | 2018-02-05 | 2018-10-30 | 齐鲁工业大学 | The device of Recovering Waste Energy of Braking in Automobiles is carried out using elastic element |
-
2021
- 2021-05-11 CN CN202110509773.2A patent/CN113306399A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3122977A1 (en) * | 1981-06-10 | 1982-12-30 | Fritz 7770 Überlingen Koch | Method and arrangement for the recovery of braking energy in motor vehicles |
| CN1931621A (en) * | 2005-09-14 | 2007-03-21 | 刘虹邑 | Spring driven energy accumulating starting device and method for automobile |
| EP2450246A1 (en) * | 2010-11-03 | 2012-05-09 | ZanettiStudios S.r.l. | Energy recovering device for recovering energy in a vehicle |
| US20120192784A1 (en) * | 2011-01-28 | 2012-08-02 | Gideon Gimlan | Transportation device with reciprocating part and kinetic storage |
| CN102730604A (en) * | 2012-06-18 | 2012-10-17 | 三一集团有限公司 | Tandem hybrid fork lift truck |
| CN204077629U (en) * | 2014-09-16 | 2015-01-07 | 欧阳亮 | A kind of self-propelled vehicle recover kinetic energy discharges brake system again |
| CN208021423U (en) * | 2018-02-05 | 2018-10-30 | 齐鲁工业大学 | The device of Recovering Waste Energy of Braking in Automobiles is carried out using elastic element |
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Application publication date: 20210827 |
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