CN201153217Y - Energy regenerating charging equipment for electric golf trolley - Google Patents
Energy regenerating charging equipment for electric golf trolley Download PDFInfo
- Publication number
- CN201153217Y CN201153217Y CNU2007203114226U CN200720311422U CN201153217Y CN 201153217 Y CN201153217 Y CN 201153217Y CN U2007203114226 U CNU2007203114226 U CN U2007203114226U CN 200720311422 U CN200720311422 U CN 200720311422U CN 201153217 Y CN201153217 Y CN 201153217Y
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- CN
- China
- Prior art keywords
- motor
- storage battery
- golf cart
- power
- energy regeneration
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses energy regeneration charging equipment for a golf cart. The energy regeneration charging equipment comprises a motor, a storage battery and a drive controller which is arranged between the motor and the storage battery. On the premise that a hard ware structure of the prior golf cart is not changed a lot, the drive controller is adopted to control the motor; besides the motor driving function, when the cart brakes and slides, the motor is ensured to work in the regenerative braking state; the lost energy due to brake is recycled and stored in the storage battery; the short time charge to the storage battery is implemented; the road haul of the dynamoelectric golf cart with once charge is enhanced and the energy sources are saved; the brake noise is reduced at the same time. The energy regeneration charging equipment can be implemented on the vehicles with different motors, different storage battery and different power devices of a controller; thereby the energy regeneration charging equipment has great applicable value and the industrialized production is easy to be implemented.
Description
Technical field
The utility model belongs to electric motor car Drive Control Technique field, particularly a kind of electric golf cart energy regeneration charging device.
Background technology
At present, the electric golf drive system is made up of storage battery, motor and control thereof, and the special charger that utilizes vehicle to be equipped with charges to storage battery, and storage battery adopts maintenance-free lead-acid battery, or Ni-MH battery etc.When the vehicle ' certain distance, and battery tension is when dropping to certain lower limit, and must charge a battery this moment.Because the energy density of lead-acid battery or Ni-MH battery is not high, distance travelled is lower so vehicle once charges, at most 50km-70km, 20km-30km at least.
Summary of the invention
Lower at the present electric golf cart distance travelled of once charging, and vehicle brake and the present situation of energy loss when sliding, the purpose of this utility model is, a kind of electric golf cart energy regeneration charging device is provided, this device is at vehicle brake with when sliding, make machine operation in the regenerative braking state by driving governor, and electric energy feedback that regenerative braking produced and be stored in the storage battery, realize charging in short-term storage battery.
In order to realize above-mentioned task, the solution that the utility model is taked is:
A kind of electric golf cart energy regeneration charging device, comprise motor and power accumulator, it is characterized in that: between motor and power accumulator, also be provided with a driving governor, for brushless, permanently excited direct current motor, driving governor is made up of six power devices: power device VT1 and VT4, VT3 and VT6, VT2 and VT5 form the driving half-bridge respectively, constitute three phase inverter bridge, one end and the storage battery of three inverter bridge are connected in parallel, and VT1 is connected with motor windings respectively with the centre of VT6, VT2 and VT5 with VT4, VT3; For the permanent magnet brush DC motor, driving governor is formed half-bridge structure by two power device VT1 and VT2, one end and the storage battery of half-bridge are connected in parallel, the centre of VT1 and VT2 is connected with motor, and the electric energy that the motor regenerative braking is reclaimed charges to storage battery by driving governor.
The utility model all is suitable for for the electric golf cart that adopts different motors, storage battery and driving governor power device.Motor comprises permanent-magnet brushless DC electric machine, permanent magnet brush direct current machine; Storage battery comprises lead acid accumulator, lithium ion battery, nickel-hydrogen accumulator; The power device of driving governor can adopt GTR (power transistor), MOSFET (Metal-oxide-semicondutor type field-effect transistor), IGBT (insulated gate bipolar transistor npn npn), GTO (gate turn off thyristor).
The utility model can improve the electric golf cart distance travelled of once charging, and saves the energy, improves the electric golf cart technology content, enhances one's market competitiveness; The utility model is not done big change to the hardware of existing electric golf cart drive system, for different motors, storage battery, and can realize having great using value on the vehicle of power controlling device, is easy to industrialization production.
Description of drawings
Fig. 1 is an electric golf cart drive system schematic diagram, and system is by storage battery.Motor, driving governor are formed;
Fig. 2 is the systematic schematic diagram of machine operation when driving condition, and storage battery provides motor to move required electric energy, and the sense of current is shown in arrow among the figure;
Systematic schematic diagram when Fig. 3 is the energy regeneration charged state, the electric energy feedback that this moment, the motor regenerative braking produced also is stored in the storage battery, realizes the energy regeneration charging to storage battery, and the sense of current is shown in arrow among the figure;
Fig. 4 adopts lead acid accumulator, permanent-magnet brushless DC electric machine, and the driving governor power device adopts the electric golf cart drive system of IGBT;
Fig. 5 is that permanent-magnet brushless DC electric machine is in the sense of current under the driving condition;
Fig. 6 is under the permanent-magnet brushless DC electric machine regenerative braking state, the sense of current when power device VT4 conducting;
Fig. 7 is under the permanent magnet brush direct current machine regenerative braking state, the sense of current when VT2 turn-offs.
Fig. 8 and Fig. 9 are the electric golf carts that the driving governor power device adopts MOSFET, its energy regeneration charging process.
Embodiment below in conjunction with accompanying drawing and inventor.The utility model is described in further detail.
Embodiment
Referring to Fig. 1～3.According to the technical solution of the utility model, a kind of electric golf cart energy regeneration charging device comprises motor and power accumulator, also is provided with a driving governor between motor and power accumulator.
Power device adopts power transistor or Metal-oxide-semicondutor type field-effect transistor or insulated gate bipolar transistor or gate turn off thyristor or power transistor.
Storage battery is lead acid accumulator or lithium ion battery or nickel-hydrogen accumulator.
The occasion that electric golf cart need be braked mainly contains two kinds: with the speed of a motor vehicle from a high speed dropping to low speed, and speed limit during descending.
During braking, regulate the switch motion of driving governor power device, utilize the boosting of motor winding inductance to form boost chopper, make motor winding back-emf in that be lower than still can be to battery charge under the situation of battery terminal voltage, and regulate the ratio of power break-over of device time and turn-off time according to electric motor speed, reach the purpose of adjusting charging voltage.
The utility model is not done big change to existing electric golf cart drive system on hardware, as shown in Figure 1.
During normal vehicle operation, machine operation is in type of drive, and storage battery provides motor to move required electric energy, and the sense of current as shown in Figure 2;
During vehicle brake, driving governor makes machine operation in the regenerative braking state, and the motor regenerative braking produced the electric energy feedback and is stored in the storage battery, realizes the charging in short-term of storage battery, and the sense of current as shown in Figure 3.
Below be the specific embodiment that the inventor provides, need to prove that these embodiment are some preferable examples, the utility model is not limited to these embodiment.
Embodiment 1:
Adopt permanent-magnet brushless DC electric machine for motor, electric storage battery adopts lead acid accumulator, the driving governor power device adopts the electric golf cart of IGBT, its driving control system as shown in Figure 4, the regulative mode of power device as shown in Table 1 under its driving and the braking situation, wherein 1 expression power device is in normal open state, and on behalf of power device, 0 be in the normal off state, and on behalf of power device, S be in PWM (pulse-width modulation) state.
Table one:
Machine operation is in driving condition, and the rotor state be 1 o'clock the sense of current as shown in Figure 5: during braking, and the rotor state is 1 o'clock, when power switch VT4 be under the conducting state the sense of current as shown in Figure 6: during braking, and the rotor state is 1 o'clock, when power switch VT4 be under the off state the sense of current as shown in Figure 7.Under the effect of motor windings back electromotive force, when the VT4 conducting, because loop resistance is very little, the very fast rising of electric current; When VT4 turn-offed, because the effect of motor windings inductance, the energy regeneration charging process to lead acid accumulator was finished in diode VD1 conducting.
Embodiment 2:
Adopt the permanent magnet brush direct current machine for motor, storage battery adopts lithium-ions battery, and the driving governor power device adopts the electric golf cart of MOSFET, its energy regeneration charging process such as Fig. 8 and shown in Figure 9.
As shown in Figure 8, when the VT2 conducting, under the effect of motor windings back electromotive force, because loop resistance is very little, the very fast rising of electric current; When VT2 turn-offed, because the effect of motor windings inductance, the energy regeneration charging process to lithium-ions battery was finished in diode VD1 conducting.
The utility model is not done under the prerequisite of big change existing golf cart hardware configuration, adopt driving governor that motor is controlled, except the motor driven function, at vehicle brake with when sliding, make motor work in the regenerative braking state, the brake loss energy is reclaimed and is stored in the storage battery, realize charging in short-term storage battery, reach and improve once charge distance travelled and save the energy of electric golf cart, also reduced brake noise simultaneously.The utility model is for different motor, storage battery, and can realize on the vehicle of controller power device, is easy to industrialization production, has great using value.
Claims (3)
1. electric golf cart energy regeneration charging device, comprise motor and power accumulator, it is characterized in that: between motor and power accumulator, also be provided with a driving governor, for brushless, permanently excited direct current motor, driving governor is made up of six power devices: power device VT1 and VT4, VT3 and VT6, VT2 and VT5 form the driving half-bridge respectively, constitute three phase inverter bridge, one end and the storage battery of three inverter bridge are connected in parallel, and VT1 is connected with motor windings respectively with the centre of VT6, VT2 and VT5 with VT4, VT3; For the permanent magnet brush DC motor, driving governor is formed half-bridge structure by two power device VT1 and VT2, one end and the storage battery of half-bridge are connected in parallel, the centre of VT1 and VT2 is connected with motor, and the electric energy that the motor regenerative braking is reclaimed charges to storage battery by driving governor.
2. electric golf cart energy regeneration charging device as claimed in claim 1, it is characterized in that described power device adopts power transistor or Metal-oxide-semicondutor type field-effect transistor or insulated gate bipolar transistor or gate turn off thyristor or power transistor.
3. electric golf cart energy regeneration charging device as claimed in claim 1 is characterized in that, described storage battery is lead acid accumulator or lithium ion battery or nickel-hydrogen accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203114226U CN201153217Y (en) | 2007-12-26 | 2007-12-26 | Energy regenerating charging equipment for electric golf trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203114226U CN201153217Y (en) | 2007-12-26 | 2007-12-26 | Energy regenerating charging equipment for electric golf trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201153217Y true CN201153217Y (en) | 2008-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203114226U Expired - Fee Related CN201153217Y (en) | 2007-12-26 | 2007-12-26 | Energy regenerating charging equipment for electric golf trolley |
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| CN (1) | CN201153217Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741292B (en) * | 2008-11-25 | 2011-12-07 | 南京理工大学 | Motor control system capable of realizing high-efficiency recovery of kinetic energy and control method thereof |
| CN102946219A (en) * | 2012-11-05 | 2013-02-27 | 苏州汇川技术有限公司 | Motor drive system and energy feedback brake control method of motor drive system |
| CN105344088A (en) * | 2015-10-20 | 2016-02-24 | 杭州奇芝科技有限公司 | Electronic speed regulator for electric skateboard and control method of electronic speed regulator |
| CN107117040A (en) * | 2017-04-13 | 2017-09-01 | 江苏大学 | A kind of control device and control method driven for electric automobile with brakes |
-
2007
- 2007-12-26 CN CNU2007203114226U patent/CN201153217Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741292B (en) * | 2008-11-25 | 2011-12-07 | 南京理工大学 | Motor control system capable of realizing high-efficiency recovery of kinetic energy and control method thereof |
| CN102946219A (en) * | 2012-11-05 | 2013-02-27 | 苏州汇川技术有限公司 | Motor drive system and energy feedback brake control method of motor drive system |
| CN102946219B (en) * | 2012-11-05 | 2014-04-16 | 苏州汇川技术有限公司 | Motor drive system and energy feedback brake control method of motor drive system |
| CN105344088A (en) * | 2015-10-20 | 2016-02-24 | 杭州奇芝科技有限公司 | Electronic speed regulator for electric skateboard and control method of electronic speed regulator |
| CN107117040A (en) * | 2017-04-13 | 2017-09-01 | 江苏大学 | A kind of control device and control method driven for electric automobile with brakes |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Effective date: 20110829 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 710049 XI'AN, SHAANXI PROVINCE TO: 215123 SUZHOU, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110829 Address after: 215123 17 No. 102, Qin yuan community, Suzhou Industrial Park, Jiangsu, Suzhou Patentee after: Suzhou Academy of Xi'an Jiaotong University Address before: 710049 Xianning Road, Shaanxi, China, No. 28, No. Patentee before: Xi'an Jiaotong University |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20151226 |
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| EXPY | Termination of patent right or utility model |