CN102152733A - Double-voltage composite energy storage method and device for electric or hybrid power vehicle - Google Patents
Double-voltage composite energy storage method and device for electric or hybrid power vehicle Download PDFInfo
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- CN102152733A CN102152733A CN2011100875936A CN201110087593A CN102152733A CN 102152733 A CN102152733 A CN 102152733A CN 2011100875936 A CN2011100875936 A CN 2011100875936A CN 201110087593 A CN201110087593 A CN 201110087593A CN 102152733 A CN102152733 A CN 102152733A
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Abstract
The invention provides a double-voltage composite energy storage method and device for an electric or hybrid power vehicle. An intermediate energy storage system and a switch are additionally arranged on the basis of the original battery energy storage system of the electric or hybrid power vehicle, the battery energy storage system is isolated in the processes of recovering energy and releasing the recovered energy by controlling the switch to open and close, and a temporary storage space is provided by the intermediate energy storage system for the recovered energy so that the energy of the vehicle can still be recovered and released without using a battery and that energy can be maximally recovered to increase the traveling mileage of the vehicle in a purely electric way and simultaneously prolong the service life of the battery. The method and the device provided by the invention are simple in principle, low in implementation cost and high in reliability, increase the utilization rate of energy effectively, save resources and are suitable for popularization.
Description
Technical field
The present invention relates to a kind of electronic or hybrid vehicle energy storage method and device, relate to a kind of electronic or two voltage composite energy storage methods of Hybrid Vehicle and device specifically.Technical field is administered in the energy recovery that belongs to system.
Background technology
Along with day by day rare of the energy, going from bad to worse of environment, pure electronic or hybrid vehicle more energy-conservation, more environmental protection arises.Electronic or hybrid vehicle is compared with orthodox car, and maximum difference is that its energy source is an electric energy, but not chemical power.Problem electronic or hybrid vehicle large-scale promotion application maximum is a battery problems, because the restriction of battery technology, technical barriers such as battery life, energy content of battery recovery never are resolved.Under present battery technology condition, how to improve electronic or hybrid vehicle electric braking energy recovery and utilization ratio, the pure electronic continual mileage of prolongation, improve and electrokinetic cell service life the popularization of electronic or hybrid vehicle is had great importance.
At present, electronic or hybrid vehicle is taked single voltage platform closed-centre system more, and these scheme common features are in the vehicle operation process, and dc voltage has only a unique magnitude of voltage, following its shortcoming of surface analysis:
The shortcoming of univoltage closed-centre system platform maximum is the contradiction that can't solve battery life and pure electronic mode continual mileage, in city bus operating mode or other operating modes of blocking up, braking time is more, if increase pure electronic mode continual mileage, must strengthen the electric braking energy recovery, but the braking energy of big electric current reclaims, can reduce battery life, and braking energy reclaims, discharge all through the closed-centre system transfer, even reduce electric current, has reduced battery service life too.
At to the prior art vacancy, for solving the contradiction of univoltage closed-centre system energy recovery and battery life, realize the efficient withdrawal of energy, improve electronic or hybrid vehicle operation ability that the present invention proposes this a kind of electronic or two voltage composite energy storage methods of Hybrid Vehicle and device.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of electronic or two voltage composite energy storage methods of Hybrid Vehicle and device, on a chassis, use the closed-centre system collaborative work of two kinds of different voltage classs, by increasing an intermediate energy storage system, for the energy that reclaims provides a ccasual storage space, make vehicle energy recovery, release all without battery, and recuperated energy at utmost, increase the pure electronic mode continual mileage of vehicle, prolong battery service life simultaneously.
The technical solution used in the present invention is: a kind of electronic or two voltage composite energy storage methods of Hybrid Vehicle, it is characterized in that on the basis of electronic or the original battery energy storage system of hybrid vehicle, increasing a kind of intermediate energy storage system and switch, described intermediate energy storage system is in parallel with battery energy storage system, and the maximum voltage of intermediate energy storage system is higher than the maximum voltage of battery energy storage system, described switch is installed between intermediate energy storage system and the battery energy storage system, the vehicle power taking is connected between intermediate energy storage system and the switch, by opening of master cock, closed action, in the process of carrying out the release of energy recovery and recuperated energy, isolate battery energy storage system, and finish energy recovery and recuperated energy release by the intermediate energy storage system.
The two concrete application processes of voltage composite energy storage method on electronic or hybrid vehicle of the present invention are: the energy recovery of vehicle and the release of recuperated energy belong to the short-time energy behavior, when vehicle carries out energy recovery, switch opens, isolate battery energy storage system, carry out short-time energy recovery and recuperated energy release by the intermediate energy storage system, powered to vehicle by the intermediate energy storage system this moment, and the process of whole energy recovery and release is without battery energy storage system; After energy recovery in short-term and release were finished, switch closure was connected battery energy storage system, by battery energy storage system vehicle is powered.
Described intermediate energy storage system can adopt super capacitor energy-storage system or other to have the power electronic devices and the device of energy-storage function.
Described switch can adopt the power electronic devices with switching function.
According to the two voltage composite energy storing devices of a kind of electronic or Hybrid Vehicle of above-mentioned pair of voltage composite energy storage method proposition, it is characterized in that on the basis of electronic or the original battery energy storage system of hybrid vehicle, increasing a kind of super capacitor energy-storage system and a switch, described super capacitor energy-storage system is in parallel with battery energy storage system, and the maximum voltage of super capacitor energy-storage system is higher than the maximum voltage of battery energy storage system, described switch is installed between intermediate energy storage system and the battery energy storage system, the positive pole of switch is connected with battery energy storage system is anodal, and the vehicle power taking is connected between intermediate energy storage system and the switch negative pole.
Described intermediate energy storage system can adopt super capacitor energy-storage system or other to have the power electronic devices and the device of energy-storage function.
Described switch can adopt the power electronic devices (as diode, thyristor GTR) with switching function.
The technique effect of obtaining of this device is: establishing the super capacitor energy-storage system voltage is V1, and maximum voltage is V1
Max, battery energy storage system voltage is V2, maximum voltage is V2
Max, and V1
Max＞V2
MaxWhen vehicle carries out energy recovery, the voltage V1 of super capacitor energy-storage system can be higher than the voltage V2 of battery energy storage system rapidly, be V1＞V2, then switch ends, play the effect of isolating battery energy storage system, battery energy storage system stops to vehicle power supply, and carry out energy recovery and the energy that reclaims is discharged in the electric energy mode by the super capacitor energy-storage system, be the vehicle power supply; System powers to vehicle along with super capacitor energy-storage, and V1 reduces rapidly, and when being reduced to V1＜V2, switch conduction is connected battery energy storage system, is the vehicle power supply by battery energy storage system.
Described intermediate energy storage system can adopt super capacitor energy-storage system or other to have the power electronic devices and the device of energy-storage function.
Described switch can replace with diode, thyristor GTR or other power electronic devices with similar switching function.
The present invention, makes energy recovery and discharges fully without battery energy storage system for the electric energy that reclaims provides a ccasual storage space by increasing an intermediate energy storage system and a switch, and its good effect is:
One, the method for the invention has successfully solved the contradiction of energy recovery and battery life by increasing simple circuit and device, has prolonged the life-span of battery under the prerequisite that guarantees the high efficiente callback energy, has increased vehicle pure motor driving mileage.
Two, device of the present invention according to energy content of battery density big but power density and life-span adopt super capacitor as the charging closed-center system all not as good as the characteristics of electric capacity, use the diode-isolated battery during charging, prolonged battery service life, and improved discharge efficiency.
Three, the principle of the invention is simple, and implementation cost is low, and the reliability height has improved capacity usage ratio effectively, has saved resource, is fit to promote the use of.
Description of drawings
Fig. 1 is the functional block diagram of the two voltage composite energy storage methods of a kind of electronic or Hybrid Vehicle of the present invention.
Fig. 2 is the functional block diagram of the two voltage composite energy storing devices of a kind of electronic or Hybrid Vehicle of the present invention.
The specific embodiment
Further set forth the present invention below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of electronic or two voltage composite energy storage methods of Hybrid Vehicle, it is characterized in that on the basis of electronic or the original battery energy storage system B1 of hybrid vehicle, increasing a kind of intermediate energy storage C1 of system and K switch, the described intermediate energy storage C1 of system is in parallel with battery energy storage system B1, and the maximum voltage V1 of the C1 of intermediate energy storage system
MaxThe maximum voltage V2 that is higher than battery energy storage system B1
MaxDescribed K switch is installed between C1 of intermediate energy storage system and the battery energy storage system B1, the vehicle power taking is connected between C1 of intermediate energy storage system and the K switch, by the opening of master cock K, closed action, in the process of carrying out the release of energy recovery and recuperated energy, isolate battery energy storage system B1, and finish energy recovery and recuperated energy release by the C1 of intermediate energy storage system.
The two concrete application implementation methods of voltage composite energy storage method on electronic or hybrid vehicle of the present invention are: the energy recovery of vehicle and the release of recuperated energy belong to the short-time energy behavior, when vehicle carries out energy recovery, K switch is opened, isolate battery energy storage system B1, carry out short-time energy recovery and recuperated energy release by the C1 of intermediate energy storage system, powered to vehicle by the C1 of intermediate energy storage system this moment, and the process of whole energy recovery and release is without battery energy storage system B1; After energy recovery in short-term and release were finished, the K switch closure was connected battery energy storage system B1, and B1 powers to vehicle by battery energy storage system.
The described intermediate energy storage C1 of system can adopt super capacitor energy-storage system or other to have the power electronic devices and the device of energy-storage function.
Described K switch can adopt diode, thyristor GTR or other to have the power electronic devices of switching function.
Embodiment one
As shown in Figure 2, according to the two voltage composite energy storing devices of a kind of electronic or Hybrid Vehicle of above-mentioned pair of voltage composite energy storage method proposition, it is characterized in that on the basis of electronic or the original battery energy storage system B1 of hybrid vehicle, increasing a kind of super capacitor energy-storage C1 of system and a diode D1, the described super capacitor energy-storage C1 of system is in parallel with battery energy storage system B1, and the maximum voltage V1 of the C1 of super capacitor energy-storage system
MaxThe maximum voltage V2 that is higher than battery energy storage system B1
Max, described diode D1 is installed between C1 of super capacitor energy-storage system and the battery energy storage system B1, and the positive pole of diode D1 is connected with the positive pole of battery energy storage system B1, and the vehicle power taking is connected between the negative pole of super capacitor energy-storage system and diode D1.
The technique effect of obtaining of this device is: establishing the C1 of super capacitor energy-storage system voltage is V1, and maximum voltage is V1
Max, battery energy storage system B1 voltage is V2, maximum voltage is V2
Max, and V1
Max＞V2
MaxWhen vehicle carries out energy recovery, the voltage V1 of the C1 of super capacitor energy-storage system can be higher than the voltage V2 of battery energy storage system B1 rapidly, be V1＞V2, then diode D1 ends, play the effect of isolating battery energy storage system B1, battery energy storage system B1 stops to vehicle power supply, and carry out energy recovery and the energy that reclaims is discharged in the electric energy mode by the C1 of super capacitor energy-storage system, be the vehicle power supply; Along with the C1 of super capacitor energy-storage system powers to vehicle, the voltage V1 of the C1 of super capacitor energy-storage system reduces rapidly, and when being reduced to V1＜V2, battery energy storage system B1 is connected in diode D1 conducting, is the vehicle power supply by battery energy storage system B1.
The described intermediate energy storage C1 of system can adopt super capacitor energy-storage system or other to have the power electronic devices and the device of energy-storage function.
Described diode D1 can replace with thyristor GTR or other power electronic devices with similar switching function.
The advantage of embodiment one is that it adopts diode D1 as switch, utilize the unidirectional on state characteristic of diode, can be according to the big or small automatic compensation diode operation state of V1, V2, the two voltage composite energy storage system that makes that battery energy storage system voltage V1 and super capacitor energy-storage system voltage V2 constitute can freely carry out the power supply of vehicle, voltage transformation is rapid, the reliability height, and need not any additional control circuit.
Above embodiment is only for the usefulness that patent of the present invention is described; but not to this specially sharp restriction of invention; those skilled in the art; the various not creative transformations of making under the situation of spirit that does not break away from this patent and scope all should be considered as within the protection domain of patent of the present invention.
Claims (8)
1. two voltage composite energy storage methods of electronic or Hybrid Vehicle, it is characterized in that: on the basis of electronic or the original battery energy storage system of hybrid vehicle, increase a kind of intermediate energy storage system and switch, described intermediate energy storage system is in parallel with battery energy storage system, and the maximum voltage of intermediate energy storage system is higher than the maximum voltage of battery energy storage system, described switch is installed between intermediate energy storage system and the battery energy storage system, the vehicle power taking is connected between intermediate energy storage system and the switch, by opening of master cock, closed action, in the process of carrying out the release of energy recovery and recuperated energy, isolate battery energy storage system, and finish energy recovery and recuperated energy release by the intermediate energy storage system.
2. two voltage composite energy storage methods of electronic or Hybrid Vehicle, it is characterized in that: the energy recovery of vehicle and the release of recuperated energy belong to the short-time energy behavior, when vehicle carries out energy recovery, switch opens, isolate battery energy storage system, carry out short-time energy recovery and recuperated energy release by the intermediate energy storage system, powered to vehicle by the intermediate energy storage system this moment, and the process of whole energy recovery and release is without battery energy storage system; After energy recovery in short-term and release were finished, switch closure was connected battery energy storage system, by battery energy storage system vehicle is powered.
3. the two voltage composite energy storage methods of a kind of electronic or Hybrid Vehicle according to claim 1 and 2 is characterized in that: described intermediate energy storage system can adopt super capacitor energy-storage system or other to have the power electronic devices and the device of energy-storage function.
4. a kind of electronic or two voltage composite energy storage methods of Hybrid Vehicle according to claim 1 and 2, it is characterized in that: described switch can adopt the power electronic devices with switching function.
5. two voltage composite energy storing devices of electronic or Hybrid Vehicle, it is characterized in that: on the basis of electronic or the original battery energy storage system of hybrid vehicle, increase a kind of super capacitor energy-storage system and a switch, described super capacitor energy-storage system is in parallel with battery energy storage system, and the maximum voltage of super capacitor energy-storage system is higher than the maximum voltage of battery energy storage system, described switch is installed between intermediate energy storage system and the battery energy storage system, the positive pole of switch is connected with battery energy storage system is anodal, and the vehicle power taking is connected between intermediate energy storage system and the switch negative pole.
6. the two voltage composite energy storing devices of described a kind of electronic or Hybrid Vehicle according to claim 5 is characterized in that: described intermediate energy storage system can adopt super capacitor energy-storage system or other to have the power electronic devices and the device of energy-storage function.
7. the two voltage composite energy storing devices of described a kind of electronic or Hybrid Vehicle according to claim 5 is characterized in that: described switch is that diode or thyristor GTR or other power electronic devices with similar switching function replace.
8. described a kind of electronic or two voltage composite energy storing devices of Hybrid Vehicle according to claim 6, it is characterized in that: when vehicle carries out energy recovery, the voltage of super capacitor energy-storage system can be higher than the voltage of battery energy storage system rapidly, be V1＞V2, then diode ends, battery energy storage system stops to vehicle power supply, and carry out energy recovery and the energy that reclaims is discharged in the electric energy mode by the super capacitor energy-storage system, be the vehicle power supply; System powers to vehicle along with super capacitor energy-storage, and the voltage of super capacitor energy-storage system reduces rapidly, and when being reduced to V1＜V2, diode current flow is connected battery energy storage system, is the vehicle power supply by battery energy storage system.
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| CN103786589A (en) * | 2012-10-29 | 2014-05-14 | 武汉英康汇通电气有限公司 | Electric quantity control device and method of hybrid energy storage system electric vehicle |
| CN104659921A (en) * | 2013-11-26 | 2015-05-27 | 北京科易动力科技有限公司 | Composite energy storage system for automobiles |
| CN109450008A (en) * | 2018-09-26 | 2019-03-08 | 同济大学 | A kind of circuit reducing the extension harm of batteries in parallel connection group thermal runaway |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103786589B (en) * | 2012-10-29 | 2017-03-01 | 武汉英康汇通电气有限公司 | A kind of electric quantity control unit of mixed energy storage system electric motor car and control method |
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| CN109450008A (en) * | 2018-09-26 | 2019-03-08 | 同济大学 | A kind of circuit reducing the extension harm of batteries in parallel connection group thermal runaway |
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| CN102152733B (en) | 2014-02-12 |
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Inventor after: Guo Shuying Inventor after: Wang Kunjun Inventor after: Wang Wei Inventor before: Wang Kunjun Inventor before: Wang Wei |
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Address after: 412007 Liyu Industrial Park, Tianyuan District, Zhuzhou City, Hunan Province Patentee after: Zhongche Times Electric Vehicle Co.,Ltd. Address before: 412007 Liyu Industrial Park, Tianyuan District, Zhuzhou City, Hunan Province Patentee before: HUNAN CRRC TIMES ELECTRIC VEHICLE Co.,Ltd. Address after: 412007 Liyu Industrial Park, Tianyuan District, Zhuzhou City, Hunan Province Patentee after: HUNAN CRRC TIMES ELECTRIC VEHICLE Co.,Ltd. Address before: 412007 Liyu Industrial Park, Tianyuan District, Zhuzhou City, Hunan Province Patentee before: HUNAN CSR TIMES ELECTRIC VEHICLE Co.,Ltd. |
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Effective date of registration: 20200612 Address after: 410000 testing workshop 3-102, - 103, 105, 106, building C-4 to building C-8, Huigu science and Technology Industrial Park, No. 336, bachelor Road, Yuelu District, Changsha City, Hunan Province Patentee after: Changsha CRRC Zhiyu New Energy Technology Co.,Ltd. Address before: 412007 fifty-seven zone, chestnut rain Industrial Zone, national hi tech Development Zone, Tianyuan District, Hunan, Zhuzhou Patentee before: Zhongche Times Electric Vehicle Co.,Ltd. |