CN116353748A - Electric bicycle - Google Patents
Electric bicycle Download PDFInfo
- Publication number
- CN116353748A CN116353748A CN202310635609.5A CN202310635609A CN116353748A CN 116353748 A CN116353748 A CN 116353748A CN 202310635609 A CN202310635609 A CN 202310635609A CN 116353748 A CN116353748 A CN 116353748A
- Authority
- CN
- China
- Prior art keywords
- battery
- electric bicycle
- module
- voltage
- power
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 claims abstract description 36
- 238000007599 discharging Methods 0.000 claims description 28
- 238000004891 communication Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 12
- 239000000565 sealant Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 229920002379 silicone rubber Polymers 0.000 description 5
- 239000004945 silicone rubber Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 101000650134 Homo sapiens WAS/WASL-interacting protein family member 2 Proteins 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 102100027540 WAS/WASL-interacting protein family member 2 Human genes 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
-
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
-
- 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
- B60L2200/00—Type of vehicles
- B60L2200/12—Bikes
-
- 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
Abstract
The application relates to an electric bicycle, which can convert the voltage output by a battery module into low voltage through a conversion module, wherein the conversion module is arranged in a power battery shell; the discharge port comprises a first output end and a second output end, the voltage of the first output end is larger than that of the second output end, the battery module can supply power for the driving motor through the first output end, and the battery module can supply power for the low-voltage electric device through the second output end, so that the problem that high-voltage power is still output after the power battery is powered down is solved, and the high-voltage safety risk is avoided while the use feeling of a user is met.
Description
Technical Field
The application relates to the field of vehicles, in particular to an electric bicycle.
Background
Along with the development of the age, more and more people begin to pay attention to environmental protection, and under the trend, electric bicycles become the choice of more and more people in daily life, and electric bicycles not only have the advantages of energy conservation and environmental protection, but also save time and labor, and because the electric bicycle body is smaller, the electric bicycle is light and flexible, and can also relieve the problem of urban road congestion.
The power battery of the traditional electric bicycle only has one path of high voltage output, the power system of the whole bicycle is powered by the high voltage loop, the control system of the whole bicycle can be powered by the high voltage loop, and also can be powered by the low voltage loop after voltage reduction by the voltage conversion module, after the electric bicycle is powered down, if the functions of positioning, anti-theft, remote opening and the like of the electric bicycle are required to be used, the power battery still needs to output high voltage outwards, a certain high voltage risk is provided, and safety accidents are easy to occur under the conditions of poor insulation and the like of the electric bicycle.
Disclosure of Invention
In this embodiment, an electric bicycle is provided to solve the problem that in the related art, after the power battery is powered down, high-voltage power is still required to be output, and a certain high-voltage safety risk exists.
The present embodiment provides an electric bicycle, including: the vehicle comprises a vehicle body, wheels, a driving system and low-voltage electric devices, wherein the wheels comprise front wheels and rear wheels; the driving system is supported by the vehicle body and is used for providing power for the electric bicycle, the driving system comprises a power battery and a driving motor, the power battery comprises a battery module, a shell and a discharge port, the battery module is arranged in the shell, the discharge port is arranged on the shell, and at least one of front wheels and rear wheels is connected to the driving motor; the power battery also comprises a conversion module, the conversion module can convert the voltage output by the battery module into low voltage, and the conversion module is arranged in the shell; the discharge port comprises a first output end and a second output end, the voltage of the first output end is larger than that of the second output end, the battery module can supply power for the driving motor through the first output end, and the battery module can supply power for the low-voltage electric device through the second output end.
In some embodiments, one end of the conversion module is connected with the battery module, and the other end of the conversion module is connected with the second output end, so that the voltage output by the battery module is converted into low voltage and then output to the second output end.
In some of these embodiments, the electric bicycle further includes an electric door lock, and in a case where the electric bicycle is in a powered-down state, the electric door lock can be in a closed state; under the condition that the electric door lock is in a closed state, the first output end can stop outputting voltage, and the second output end can continue outputting voltage.
In some embodiments, the electric bicycle further comprises a control module, the power battery further comprises a discharge switch, one end of the discharge switch is connected with the battery module, the other end of the discharge switch is connected with the first output end, and the control module can control the opening and closing of the discharge switch; under the condition that the electric door lock is opened, the control module can control the discharge switch to be closed, and under the condition that the electric door lock is closed, the control module can control the discharge switch to be opened.
In some embodiments, the power battery further comprises a charging port and a charging switch, the charging port is arranged on the shell, one end of the charging switch is connected with the battery module, the other end of the charging switch is connected with the charging port, and the control module can control the opening and closing of the charging switch; when the electric bicycle charges, the control module can control the charge switch to be closed.
In some of these embodiments, the power cell further comprises a charging circuit and a discharging circuit, the charging circuit and the discharging circuit being separately provided; the charging switch is located on the charging line, and the discharging switch is located on the discharging line.
In some of these embodiments, the electric bicycle further comprises a charger for charging the electric bicycle, the charger being connectable to the charging port; under the condition that the charger charges the electric bicycle, the first output end stops outputting high voltage, and the discharging switch is in an off state.
In some of these embodiments, the power battery further comprises a battery management module capable of monitoring the status of the battery module, the battery management module being disposed within the housing of the power battery; the driving system also comprises a motor controller for controlling the operation of the driving motor; one of the first output end and the second output end is connected with the motor controller, so that the power battery supplies power for the motor controller.
In some embodiments, the casing comprises a shell and a cover plate, and the battery management module and the conversion module are arranged on one side of the cover plate facing the battery module, wherein the battery management module and the conversion module are integrated; the apron is equipped with the heat conduction layer towards one side of battery module, and the heat conduction layer can absorb heat.
In some of these embodiments, the power battery further comprises a battery management module capable of monitoring a state of the battery module, and the drive system further comprises a motor controller for controlling operation of the drive motor, the battery management module and the motor controller being disposed outside the housing, wherein the battery management module is integrally disposed with the motor controller.
Compared with the prior art, the electric bicycle provided in the embodiment comprises the conversion module through the power battery, the conversion module can convert the voltage output by the battery module into low voltage, the conversion module is arranged in the shell, the discharging port comprises the first output end and the second output end, the problem that high voltage is still required to be output after the power battery is powered down is solved, and the high-voltage safety risk is avoided while the use feeling of a user is met.
The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the other features, objects, and advantages of the application.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
fig. 1 is a schematic diagram of the whole electric bicycle of the present embodiment;
fig. 2 is a schematic diagram of the power battery module connection of the present embodiment;
fig. 3 is another power battery module connection schematic diagram of the present embodiment;
fig. 4 is a schematic diagram of still another power battery module connection of the present embodiment;
fig. 5 is a schematic diagram of the charge-discharge line control relationship of the present embodiment;
fig. 6 is a schematic diagram of the electric bicycle wiring connection of the present embodiment;
fig. 7 is a schematic diagram of the charge-discharge port arrangement of the present embodiment;
fig. 8 is another charge-discharge port arrangement schematic diagram of the present embodiment;
fig. 9 is a schematic view of a power battery cover plate of the present embodiment;
fig. 10 is a schematic view of the structure of the power battery of the present embodiment;
fig. 11 is a schematic diagram of another circuit connection of the electric bicycle of the present embodiment;
FIG. 12 is a schematic diagram of the circuit connection of the present embodiment;
FIG. 13 is another schematic circuit diagram of the present embodiment;
fig. 14 is a schematic diagram of still another circuit connection of the present embodiment.
Detailed Description
For a clearer understanding of the objects, technical solutions and advantages of the present application, the present application is described and illustrated below with reference to the accompanying drawings and examples.
Unless defined otherwise, technical or scientific terms used herein shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms "comprising," "including," "having," and any variations thereof, as used in the present application, are intended to cover a non-exclusive inclusion; reference to "a plurality" in this application means two or more. The character "/" indicates that the associated object is an or relationship. The terms "first," "second," and the like, as referred to in this application, merely distinguish similar objects and do not represent a particular ordering of objects.
In the embodiment, an electric bicycle is provided, wherein a power battery is used as an auxiliary energy source, and on the basis of a common bicycle, a driving motor, a controller, a handle bar and other operating components and a vehicle of a display instrument system are arranged, the whole mass of the electric bicycle is not more than 55 kg, and the speed of the electric bicycle is not more than 25 km/h.
As shown in fig. 1, the electric bicycle 100 includes a vehicle body 11, wheels 12, a drive system 13, and a low-voltage electric device 14. Wherein the wheels 12 include front wheels 121 and rear wheels 122. The driving system 13 is supported by the vehicle body 11 and is used for providing power for the electric bicycle 100, the driving system 13 comprises a power battery 131 and a driving motor 132, and the power battery 131 is electrically connected with the driving motor 132 and can supply power for the driving motor 132. The power battery 131 includes a battery module 1311, a housing 1312, a discharge port 1313, and a charge port 1314, the battery module 1311 being disposed within the housing 1312, the discharge port 1313 being disposed on the housing 1312, at least one of the front wheel 121 and the rear wheel 122 being connected to the drive motor 132.
It should be noted that, the power battery may be a lithium ion battery, which has the advantages of large capacity and high safety, and the battery module 1311 may be formed by packaging a certain number of battery cells, where a plurality of battery cells are packaged together by the same frame to form the battery module 1311. The battery module 1311 may also refer broadly to an energy storage component in the power battery 131, for example, in some power batteries the cells are directly integrated into the battery pack, and the battery module 1311 may also refer to an energy storage component composed of cells.
The driving motor converts the electric energy of the power battery into mechanical energy to drive the wheel of the electric bicycle to rotate, and the driving motor can be a brushed gear hub motor, a brushed gear-free hub motor, a brushless gear hub motor, a high-disk motor, a side-hanging motor, a columnar motor, a middle-set motor and the like.
Referring to fig. 2, the power battery 131 further includes a conversion module 1315, where the conversion module 1315 is disposed in the housing 1312, and the conversion module 1315 is capable of converting the voltage output from the battery module 1311 into a low voltage, and then outputting the low voltage to the low voltage electric device 14 through the discharge port 1313. The discharge port 1313 includes a first output port 1313a and a second output port 1313b, the voltage of the first output port 1313a is greater than the voltage of the second output port 1313b, the battery module 1311 can supply power to the driving motor 132 through the first output port 1313a, and the battery module 1311 can supply power to the low voltage power device 14 through the second output port 1313 b.
The voltage output by the first output terminal 1313a may be defined as a first voltage, the voltage output by the second output terminal 1313b may be defined as a second voltage, the conversion module 1315 may be a DC-DC conversion module capable of converting the voltage output by the battery module 1311, i.e., the first voltage, into a second voltage output, e.g., 48V, and the second voltage, e.g., 12V, the DC-DC conversion module converting the 48V voltage into a 12V voltage, the battery module 1311 may output the first voltage, i.e., 48V, through the first output terminal 1313a to supply power to the driving motor 132, and the battery module 1311 may output the second voltage, i.e., 12V, through the second output terminal 1313b to supply power to the low voltage electric device 14.
The low voltage electrical devices 14 may include body controllers (Body Control Module, abbreviated BCM), telematics BOX (abbreviated TBOX), lighting, anti-theft devices, meters, and the like. The BCM is used for monitoring and controlling the vehicle body, can control the power on and off of the vehicle body, and can also control the lighting device, the anti-theft device and the like. The lighting means may comprise headlights, turn signals, etc. The TBOX comprises a network module and is used for communicating with a background system and a mobile terminal, wherein the network module comprises far-field communication and near-field communication, so that the synchronization of vehicle information and the background system is realized. The TBOX may locate the vehicle location through a global positioning system (Global Positioning System, simply GPS) module so that the network module can obtain vehicle telematics information. The instrument can display the information such as electric quantity, motor temperature, speed of a motor of the electric bicycle, and can also carry out fault reminding.
The first output end 1313a of the power battery 131 outputs high-voltage power to the driving motor 132, the second output end 1313b outputs low-voltage power to the low-voltage power device 14, and when the electric bicycle is powered down, the first output end 1313a of the power battery 131 can be cut off, so that the power battery 131 does not output high voltage any more, the second output end 1313b of the power battery 131 can output low voltage power to the low-voltage power device 14, and functions of positioning, anti-theft, remote opening and the like of the electric bicycle can be normally used after the electric bicycle is powered down, and further the use experience of a user on the electric bicycle is improved. The power battery can not output high voltage after the electric bicycle is powered down, can avoid high voltage safety risk, and then under the condition that functions such as positioning, anti-theft, remote opening and the like of the electric bicycle can be normally used after the electric bicycle is powered down, the safety of the electric bicycle is improved, and the high voltage safety risk under the condition of poor insulation and the like is avoided.
In some of these embodiments, as shown in fig. 2 and 3, one end of the conversion module 1315 is connected to the battery module 1311, and the other end is connected to the second output terminal 1313 b. When the electric bicycle is in the power-on state, the first output terminal 1313a can output a first voltage greater than 35 volts, and the second output terminal 1313b outputs a second voltage not exceeding 35 volts. The electric bicycle further comprises an electric door lock, and the electric door lock can be in a closed state under the condition that the electric bicycle is in a power-down state; when the electric door lock is in the closed state, the first output terminal 1313a can stop outputting the voltage, and the second output terminal 1313b can continue outputting the voltage. The electric door lock is a component for controlling the starting (powering-up) of the vehicle, and can be opened by a key, a remote control, NFC or the like.
Specifically, on the one hand, the voltage output from the battery module 1311 can output 48V voltage to the driving motor 132 through the first output terminal 1313a of the discharge port 1313; on the other hand, the voltage output from the battery module 1311 can be down-converted based on the conversion module 1315 and then output 12V voltage to the low-voltage power consumption device 14 through the second output terminal 1313b of the discharge port 1313. Under the condition that the electric bicycle is powered down, the first output end 1313a of the power battery 131 is controlled to stop outputting the voltage under the condition that the second output end 1313b is not affected to continue outputting the low voltage, so that the electric bicycle is free from high voltage, and the circuit is simple, easy to arrange in the power battery and low in cost. Referring to fig. 3, the power battery 131 further includes a charging circuit 1316 and a discharging circuit 1317, one end of the charging circuit 1316 is connected to the battery module 1311, and the other end of the charging circuit 1316 is connected to the charging port 1314. One end of the discharge circuit 1317 is connected to the battery module 1311, and the other end of the discharge circuit 1317 is connected to the discharge port 1313. The charging circuit 1316 and the discharging circuit 1317 of the power battery 131 are independent. Specifically, the charging circuit 1316 may also be referred to as a charging line, the discharging circuit 1317 may also be referred to as a discharging line, and the charging line and the discharging line are provided independently. The arrangement of the charging circuit 1316 and the discharging circuit 1317 inside the power battery 131 can enable the discharging circuit 1317 to be used when the power battery 131 discharges, and the charging circuit 1316 is used for charging, so that the charging and the discharging are not interfered with each other and are independent of each other, and the safety level of the electric bicycle is further improved.
Referring to fig. 4, the charging circuit 1316 of the power battery 131 includes a charging switch 1316a, one end of the charging switch 1316a is connected to the battery module 1311, and the other end is connected to the charging port 1314. The discharge circuit 1317 of the power battery 131 includes a discharge switch 1317a, and one end of the discharge switch 1317a is connected to the battery module 1311 and the other end is connected to the discharge port 1313. The electric bicycle further includes a control module 141 capable of controlling the on and off of the charge switch and the discharge switch, the control module 141 being, for example, a battery management module, a motor controller, etc. Specifically, the discharging circuit 1317 includes a line in which the battery module 1311 is connected to the first output terminal 1313a, and the discharging circuit 1317 includes a line in which the battery module 1311 is connected to the second output terminal 1313b through the conversion module 1315, where the discharging switch 1317a is disposed in the line in which the battery module 1311 is connected to the first output terminal 1313 a.
In the state of charge of the power battery 131, the control module 141 can control the charge switch 1316a to be in a closed state, and control the discharge switch 1317a to be in an open state. When the charge switch 1316a is in the closed state, the charge circuit 1316 is turned on, and when the discharge switch 1317a is in the open state, a line of the discharge circuit 1317, in which the battery module 1311 is connected to the first output terminal 1313a, is opened. The first output end 1313a stops outputting high voltage in the state of charge of the power battery, so that the risk of high-voltage power utilization of the electric bicycle can be avoided, and the personal safety of a user of the electric bicycle is protected.
Referring to fig. 5, specifically, the control module 141 may be one of low voltage electrical devices on the electric bicycle, for example, a BMS. The charge switch 1316a and the discharge switch 1317a are relays, and the control module 141 can control the on or off of relay contacts. It should be noted that, two types of lines are referred to in fig. 5, one is a power supply line, for example, between the battery module 1311 and the charger, between the battery module 1311 and the driving motor 132, and between the battery module 1311 and the low-voltage electric device 14; the other is a communication line, for example, between the control module 141 and the charge switch 1316a, and between the control module 141 and the discharge switch 1317 a. Referring to fig. 6, specifically, when the electric bicycle 100 is charged, the charger 200 converts the input 220V commercial power into 48V direct current and outputs the 48V direct current to the battery module 1311 through the charging port 1314, and the battery module 1311 stores electric energy; the charger 200 may be an in-vehicle charger or a portable charger. Illustratively, the charging port 1314 includes 5 terminals therein, positive and negative for charging, two communication terminals for communication, a terminal for indicating a state of charge, respectively; the communication line of the charging port 1314 adopts twisted pair, for example, two communication terminals can be CHG-in corresponding to 485A and I-WIRE corresponding to 485B; the terminal indicating the state of charge may be a hard wire corresponding to the CRG. Further, the discharge port 1313 includes 7 terminals, which are positive and negative poles of the first voltage output from the first output terminal 1313a, positive and negative poles of the second voltage output from the second output terminal 1313b, two communication terminals for communication, and a terminal for indicating a discharge state, respectively; wherein, twisted pair WIREs are adopted for the communication WIREs of the discharge port 1313, for example, two communication terminals can be a hard WIRE corresponding to 485A and an I-WIRE corresponding to 485B; the terminal for indicating the discharge state may be, for example, an instruction ON, and further, the terminal for indicating the discharge state may specifically refer to an operation state of the first output terminal 1313a, and it may be determined that the first output terminal 1313a is currently in an output voltage state or is stopped from outputting the voltage state, for example, by an instruction of the terminal.
Further, taking the electric appliances controlling the power on and off of the electric bicycle as the vehicle body controller 142, the first output end 1313a outputs 48V, the second output end 1313b outputs 12V as examples, the low voltage electric appliance 14 includes the vehicle body controller 142 and other electric appliances 143, and the other electric appliances 143 include but are not limited to the meter controller. Fig. 6 shows 4 lines, namely, an AC line of 220V, a DC line of 48V, a KL30 normal line, and a KL15 command line. Specifically, the charger 200 obtains electric energy from the commercial power through an AC line of 220V and delivers the electric energy to the power battery 131 based on the charging port 1314 through a DC line of 48V; the first output 1313a of the power battery 131 supplies power to the driving motor 132 through a DC line of 48V; a second output 1313b of the power battery 131 supplies electric energy to the vehicle body controller 142 and other electric appliances 143 through KL30 normal electric wires; the second output 1313b of the power battery 131 wakes up the other electrical appliance 143 via a KL15 command line, where the KL15 command line is connected with a wake-up switch, which may be a relay, for example. When the body controller 142 receives a start signal (a start signal sent by a key, a remote control or NFC), the body controller 142 controls the switch on the KL15 command line to be closed, and the current or voltage signal transmitted through the KL15 command line wakes up other controllers such as a motor controller, an instrument controller, and the like. The electric appliance for controlling the power on and off of the electric bicycle can be a whole vehicle controller, an instrument controller and the like.
Referring to fig. 7, the power cell 131 includes an insert 1318, and the discharge port 1313 and the charge port 1314 are provided on the same insert 1318. The power battery can be installed below the saddle of electric bicycle, for making electric bicycle miniaturized and lightweight, the volume of power battery also needs as little as possible, power battery carries out battery module, thermal management system, high-voltage system etc. and arranges under limited space constraint, the power battery includes casing and apron, the area of apron is less, if set up conversion module 1315 in power battery inside, available space is less, set up discharge port 1313 and charge port 1314 on same plug-in components can reduce plug-in components quantity, save power battery's hardware cost, and can make power battery's arrangement compacter owing to the arrangement space of having saved a plug-in components, be favorable to power battery and electric bicycle's miniaturization.
The power battery 131 may also include more than one plug-in unit, as shown in fig. 8, where the power battery 131 includes a first plug-in unit 1318a and a second plug-in unit 1318b, the discharge port 1313 and the charge port 1314 are respectively disposed on the two plug-in units, the first output end 1313a and the second output end 1313b of the discharge port 1313 are both disposed on the first plug-in unit 1318a, the first output end 1313a outputs high voltage to the driving motor 132, and the second output end 1313b outputs low voltage to the low voltage power device 14, that is, the first plug-in unit 1318a is respectively connected to the driving motor 132 and the low voltage power device 14. A charging port 1314 is provided on the second plug-in 1318b, and the charging port 1314 is connected to the charger 200 for charging the power battery 131, i.e., the second plug-in 1318b is connected to the charger 200. The charging port 1314 and the discharging port 1313 are respectively arranged on the two plug-ins, the two ports are not required to be integrated, the functional requirements on the plug-ins are low, and the charging port 1314 and the discharging port 1313 are arranged separately, so that the charging circuit and the discharging circuit are not interfered with each other, and the electric safety of the electric bicycle is facilitated.
The housing 1312 of the power battery 131 may include a case 1312a and a cover 1312b, and a side of the cover 1312b facing the battery module 1311 is provided with a heat conductive layer. The power battery 131 further includes a battery management module (Battery Management System, simply BMS) 1319 for monitoring the state of the power battery 131. The battery management module 1319 and the conversion module 1315 are provided on the side of the power cell 131 close to the cover plate. The thermally conductive layer may absorb heat to avoid excessive temperatures of the battery management module 1319 and the conversion module 1315.
The heat conducting layer may be heat conducting pouring sealant, such as epoxy resin glue, silicone rubber, polyurethane and other materials. The epoxy resin pouring sealant comprises a single-component epoxy resin pouring sealant and a double-component epoxy resin pouring sealant, and has good adhesion and insulativity. The silicone rubber pouring sealant comprises room temperature vulcanized silicone rubber, double-component addition type silicone rubber pouring sealant and double-component condensation type silicone rubber pouring sealant, and has higher high temperature resistance and insulativity.
Referring to fig. 9 and 10, the power battery 131 includes a battery module 1311, a battery management module 1319, and a conversion module 1315. The battery module 1311 is composed of an electric core and related high-voltage connection accessories, and the BMS1319 is connected with the battery module 1311 through a sampling wire harness module and a high-voltage bus copper bar to realize signal acquisition and energy management. The interface is mounted on the cover plate 1312b of the power battery 131, is connected with the positive and negative electrodes of the internal battery module 1311 through the bus bar copper bars, and can realize control of energy input and output through the BMS 1319. The interface includes a charge port 1314 and a discharge port 1313, allowing the discharge circuit 1317 and the charge circuit 1316 to employ separate circuits. The conversion module 1315 is highly integrated with the battery management module 1319 and is mounted in the cover plate 1312b, and glue filling processing is performed on the inner side of the cover plate 1312b, so that heat conduction between the conversion module 1315 and the battery management module 1319 in the cover plate 1312b can be increased, and overhigh temperature of the conversion module 1315 and the battery management module 1319 is avoided.
Referring to fig. 11, the electric bicycle 100 includes a low voltage battery 15 capable of supplying power to the low voltage power device 14, a battery module 1311 supplies power to the driving motor 132 through a first output terminal 1313a, and the battery module 1311 supplies power to the low voltage battery through a second output terminal 1313 b. When the electric bicycle is powered on, i.e., the electric door lock is opened, the battery module 1311 outputs high voltage electricity, e.g., 48V, to the driving motor 132, and the battery module 1311 outputs low voltage electricity, e.g., 12V, to the low voltage battery. When the electric bicycle is powered down, i.e. the electric door lock is closed, the battery module 1311 does not output high voltage electricity and low voltage electricity any more, and the low voltage storage battery 15 supplies power to the low voltage electric devices 14 such as the BCM, the TBOX, the lighting device, the anti-theft device, the instrument and the like, so that the functions of remote starting, positioning, anti-theft and the like of the electric bicycle are met, meanwhile, the power consumption of the power battery 131 due to overlarge static power consumption of the whole bicycle is avoided, the loss of the power battery 131 is reduced, and the service life of the power battery 131 is prolonged.
The low-voltage storage battery 15 is a common lead-acid storage battery, has lower cost compared with a lithium ion battery, and can reduce the cost of the electric bicycle while avoiding the power battery from being lack of power due to overlarge static loss.
The low-voltage electric device 14 is connected to the low-voltage battery 15, and the low-voltage electric device can also be connected to the second output terminal 1313 b. When the electric bicycle is powered on, the second output terminal 1313b is able to supply power to not only the low-voltage battery 15 but also the low-voltage electric appliance 14. When the electric bicycle is powered down, the BMS can periodically wake up and detect the electric quantity of the power battery 131 and the low-voltage storage battery 15, when the electric quantity of the power battery 131 is sufficient, for example, the residual electric quantity exceeds 50% of the capacity of the power battery, and the electric quantity of the low-voltage storage battery is insufficient, for example, the residual electric quantity is lower than 20% of the capacity of the low-voltage storage battery, the BMS can control the power battery 131 to charge the low-voltage storage battery 15, and the problem that the functions of remote starting, positioning, anti-theft and the like of the electric bicycle cannot be used due to the fact that the electric quantity of the low-voltage storage battery is exhausted can be avoided.
The driving system further includes a motor controller 133, the motor controller 133 is connected with the power battery 131 and the driving motor 132, the motor controller is further connected with a speed-adjusting handle, the speed-adjusting handle receives a user operation and sends a speed-adjusting instruction to the motor controller, and the motor controller controls the driving motor 132 to operate according to the received instruction, for example, controls the driving motor 132 to operate according to a set direction, speed, angle, response time, and the like. The motor controller converts the electric energy stored in the power battery 131 into the electric energy required by the driving motor 132 according to the instructions of the opening degree, the braking and the like of the turning handle of the electric bicycle to control the running states of the electric bicycle such as starting operation, speed, climbing force and the like, or can help the electric bicycle to brake and store braking energy into the power battery 131.
The battery management module 1319 can measure the voltage and current of the battery module 1311, the temperature of the battery core and the residual capacity of the battery, prevent the power battery 131 from being overcharged or overdischarged, improve the safety of the power battery 131 and prolong the service life of the battery. The hardware topology of the BMS may be centralized or distributed. The battery management module 1319 can control the on and off of the charge switch 1316a and the discharge switch 1317a, and when the power battery 131 fails, such as a short circuit, an overvoltage, an overcurrent, a temperature abnormality, etc., the BMS can turn off the charge switch or the discharge switch to perform a fail-safe function.
Referring to fig. 12, the battery management module 1319 may be disposed in the housing 1312 of the power battery 131, for example, may be disposed at an end of the power battery 131, and the housing 1312 is sealed outside, so as to save the length of the wire harness and avoid the potential safety hazard. The BMS1319 is communicatively connected to the battery module 1311, and is configured to measure the voltage and current of the battery module 1311, the temperature of the battery cell, the remaining battery power, etc., and when an abnormality occurs in the battery module, such as an excessive temperature or an excessive pressure, the BMS can control the charging circuit or the discharging circuit to be disconnected to protect the power battery. When the electric bicycle 100 is charged, the charger 200 is connected with the charging circuit 1316 of the power battery 131, taking the charging voltage of 48V as an example, the charger 200 converts the commercial power into 48V direct current and outputs the 48V direct current to the battery module 1311, the battery module 1311 stores electric energy, the charger 200 is also connected with the battery management module 1319 in a communication manner, when the charger 200 is connected with the charging port of the bicycle body, a charging wake-up signal is sent to the BMS1319, and after the BMS1319 receives the charging wake-up signal, the BMS enters a charging mode to control the charger 200 to charge the power battery 131 from the aspects of charging current, voltage, temperature control, insulation and the like, so that the charging safety of the power battery is improved. The battery management system 1319 is also in communication connection with the motor controller 133 and the low voltage electrical device 14, the low voltage electrical device 14 includes a meter, and the battery management system 1319 sends the battery power to the meter, so that a user can conveniently know the battery service condition and timely charge when the power is low. When the battery management system 1319 detects a fault, an error is also reported, and the motor controller 133 adjusts a corresponding control strategy according to the fault type. The electric bicycle can further comprise a buzzer, the buzzer can be arranged at the power battery 131, the motor controller or other places of the bicycle body, the battery management module controls the buzzer, for example, when the temperature of the power battery 131 is monitored to reach the limit value, the battery management module 1319 controls the buzzer to alarm within 30 seconds, the user is reminded of overhigh temperature of the power battery of the electric bicycle, and the electric bicycle is protected and the personal safety of the user is guaranteed.
In addition, the BMS may be provided outside the power battery 131, and as shown in fig. 13, the BMS1319 is connected to the power battery 131 and the motor controller 133. When the electric bicycle 100 is charged, the charger is connected with the charging circuit 1316 of the power battery, taking the charging voltage of 48V as an example, the charger 200 converts the commercial power into 48V direct current and outputs the 48V direct current to the battery module 1311, the battery module 1311 stores electric energy, the charger 200 is also connected with the battery management module 1319 in a communication manner, when the charger is connected with the charging port of the bicycle body, a charging wake-up signal is sent to the BMS1319, and after the BMS1319 receives the charging wake-up signal, the BMS enters a charging mode to control the charger 200 to charge the power battery 131 in terms of charging current, voltage, temperature control, insulation and the like, so that the charging safety of the power battery is improved. The battery management module 1319 is communicatively connected to the low voltage electrical apparatus 14, and when the battery management module 1319 detects a fault, a fault signal is sent to the low voltage electrical apparatus 14, such as an instrument, a vehicle body controller, etc., to alert a user of the vehicle fault and cause the controller to adjust the control strategy accordingly. The battery management module 1319 is further connected to the motor controller 133, and when the power battery 131 discharges, a discharge current is output to the motor controller 133 through the battery management module 1319, the motor controller 133 inverts 48V dc power into three-phase ac power for driving the motor 132, and when the battery management module 1319 detects a fault, a discharge loop may be disconnected to protect the electric bicycle.
The battery management module may also be integrated in a motor controller 133, as shown in fig. 14, where the motor controller 133 is connected to a discharging circuit 1317 of the power battery 131, the motor controller 133 is communicatively connected to the power battery 131, and is further electrically connected to the driving motor 132, and the motor controller 133 inverts the 48V dc voltage output from the power battery 131 into three-phase ac power for use by the driving motor 132. The motor controller 133 integrates BMS functions, performs state monitoring and fault protection of the power battery 131, and when the power battery 131 fails, such as a short circuit, an overvoltage, an overcurrent, a temperature abnormality, etc., the motor controller 133 can cut off a high-voltage circuit connected to the driving motor 132 or a high-voltage circuit connected to the power battery 131, performing a protection function. When the electric bicycle 100 is charged, the charger 200 is connected with the charging port 1314 of the power battery 131, and the electric bicycle charger 200 can communicate with the motor controller 133, the motor controller 133 integrated with the BMS function detects and controls the charging circuit 1316, so that the electric bicycle is prevented from being charged by an illegal charger, and the motor controller 133 can disconnect the charging circuit to protect the safety of the electric bicycle under the conditions of overlarge charging current or overhigh temperature of the battery module 1311, and the like.
It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to be limiting. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present application, are within the scope of the present application in light of the embodiments provided herein.
It is evident that the drawings are only examples or embodiments of the present application, from which the present application can also be adapted to other similar situations by a person skilled in the art without the inventive effort. In addition, it should be appreciated that while the development effort might be complex and lengthy, it would nevertheless be a routine undertaking of design, fabrication, or manufacture for those of ordinary skill having the benefit of this disclosure, and thus should not be construed as an admission of insufficient detail.
The term "embodiment" in this application means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive. It will be clear or implicitly understood by those of ordinary skill in the art that the embodiments described in this application can be combined with other embodiments without conflict.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the patent. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.
Claims (10)
1. An electric bicycle, comprising:
a vehicle body;
wheels including front wheels and rear wheels;
a driving system supported by the vehicle body for providing power to the electric bicycle, the driving system comprising a power battery and a driving motor, the power battery comprising a battery module, a housing and a discharge port, the battery module being disposed within the housing, the discharge port being disposed on the housing, at least one of the front wheel and the rear wheel being connected to the driving motor;
low voltage electrical devices;
the power battery is characterized by further comprising a conversion module, wherein the conversion module can convert the voltage output by the battery module into low voltage, and the conversion module is arranged in the shell;
the discharging port comprises a first output end and a second output end, the voltage of the first output end is larger than that of the second output end, the battery module can supply power for the driving motor through the first output end, and the battery module can supply power for the low-voltage electric appliance through the second output end.
2. The electric bicycle of claim 1, wherein the electric bicycle is further characterized in that,
one end of the conversion module is connected with the battery module, and the other end of the conversion module is connected with the second output end so as to convert the voltage output by the battery module into low voltage and output the low voltage to the second output end.
3. The electric bicycle according to claim 2, wherein,
the electric bicycle further comprises an electric door lock, and the electric door lock can be in a closed state under the condition that the electric bicycle is in a power-down state; when the electric door lock is in a closed state, the first output end can stop outputting voltage, and the second output end can continue outputting voltage.
4. An electric bicycle according to claim 3, wherein,
the electric bicycle further comprises a control module, the power battery further comprises a discharge switch, one end of the discharge switch is connected with the battery module, the other end of the discharge switch is connected with the first output end, and the control module can control the opening and closing of the discharge switch;
and under the condition that the electric door lock is opened, the control module can control the discharge switch to be closed, and under the condition that the electric door lock is closed, the control module can control the discharge switch to be opened.
5. The electric bicycle of claim 4, wherein the electric bicycle is further characterized in that,
the power battery further comprises a charging port and a charging switch, the charging port is arranged on the shell, one end of the charging switch is connected with the battery module, the other end of the charging switch is connected with the charging port, and the control module can control the opening and closing of the charging switch; when the electric bicycle is charged, the control module can control the charging switch to be closed.
6. The electric bicycle of claim 5, wherein the electric bicycle is further characterized in that,
the power battery also comprises a charging circuit and a discharging circuit, wherein the charging circuit and the discharging circuit are arranged separately; the charging switch is located on the charging circuit, and the discharging switch is located on the discharging circuit.
7. The electric bicycle of claim 6, wherein the electric bicycle is further characterized in that,
the electric bicycle further comprises a charger, wherein the charger is used for charging the electric bicycle and can be connected with the charging port; and under the condition that the charger charges the electric bicycle, the first output end stops outputting high voltage, and the discharging switch is in an off state.
8. The electric bicycle of claim 6, wherein the electric bicycle is further characterized in that,
the power battery also comprises a battery management module which can monitor the state of the battery module, and the battery management module is arranged in the shell of the power battery; the driving system further comprises a motor controller for controlling the operation of the driving motor; one of the first output end and the second output end is connected with the motor controller, so that the power battery supplies power for the motor controller.
9. The electric bicycle of claim 8, wherein the electric bicycle is further characterized in that,
the shell comprises a shell body and a cover plate, the battery management module and the conversion module are arranged on one side of the cover plate facing the battery module, wherein the battery management module and the conversion module are integrated; the cover plate is provided with a heat conducting layer facing one side of the battery module, and the heat conducting layer can absorb heat.
10. The electric bicycle of claim 1, wherein the electric bicycle is further characterized in that,
the power battery also comprises a battery management module which can monitor the state of the battery module, and the driving system also comprises a motor controller which is used for controlling the operation of the driving motor, wherein the battery management module and the motor controller are both arranged outside the shell, and the battery management module and the motor controller are integrally arranged.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310617485 | 2023-05-26 | ||
| CN2023106174858 | 2023-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116353748A true CN116353748A (en) | 2023-06-30 |
Family
ID=86905286
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310635609.5A Pending CN116353748A (en) | 2023-05-26 | 2023-05-31 | Electric bicycle |
| CN202310639162.9A Pending CN116374060A (en) | 2023-05-26 | 2023-05-31 | Electric bicycle |
| CN202321444098.0U Active CN220483479U (en) | 2023-05-26 | 2023-06-07 | Electric bicycle |
| CN202321443585.5U Active CN220518474U (en) | 2023-05-26 | 2023-06-07 | Power battery |
| CN202321447209.3U Active CN220465680U (en) | 2023-05-26 | 2023-06-07 | Electric bicycle |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310639162.9A Pending CN116374060A (en) | 2023-05-26 | 2023-05-31 | Electric bicycle |
| CN202321444098.0U Active CN220483479U (en) | 2023-05-26 | 2023-06-07 | Electric bicycle |
| CN202321443585.5U Active CN220518474U (en) | 2023-05-26 | 2023-06-07 | Power battery |
| CN202321447209.3U Active CN220465680U (en) | 2023-05-26 | 2023-06-07 | Electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN116353748A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106671814A (en) * | 2016-12-29 | 2017-05-17 | 力帆实业(集团)股份有限公司 | Active safety protection system for power battery pack of electric automobile |
| CN106828144A (en) * | 2016-12-26 | 2017-06-13 | 中国第汽车股份有限公司 | A kind of hybrid vehicle DC/DC control methods |
| CN108215905A (en) * | 2018-01-05 | 2018-06-29 | 王黎黎 | A kind of high voltage power battery pack application system wakes up system |
| CN108340856A (en) * | 2018-02-09 | 2018-07-31 | 合肥巨动力系统有限公司 | A kind of new-energy automobile power supply system for cancelling A-battery |
| CN109795370A (en) * | 2019-02-22 | 2019-05-24 | 深圳电擎科技有限公司 | A kind of double source output power battery pack of new-energy automobile |
| CN210337644U (en) * | 2019-07-11 | 2020-04-17 | 厦门金龙旅行车有限公司 | New energy automobile power battery full-time monitoring system |
| CN211166521U (en) * | 2019-12-03 | 2020-08-04 | 山东爱德邦智能科技有限公司 | Battery system and power supply management device thereof |
| CN111660871A (en) * | 2020-05-15 | 2020-09-15 | 浙江飞碟汽车制造有限公司 | Novel power supply system and power supply method of new energy automobile |
| CN111959295A (en) * | 2019-05-20 | 2020-11-20 | 福特全球技术公司 | Pure electric range extender electrical topology for battery electric vehicle |
| CN112477691A (en) * | 2020-11-23 | 2021-03-12 | 上海融和挚达智能科技有限公司 | Electric vehicle battery management system and method for managing power battery by using same |
| CN112543717A (en) * | 2020-09-08 | 2021-03-23 | 华为技术有限公司 | Low-voltage storage battery charging system and method |
| CN114030368A (en) * | 2021-12-16 | 2022-02-11 | 深圳威迈斯新能源股份有限公司 | Electric automobile quick charging system and control method thereof |
| US20220355705A1 (en) * | 2021-05-10 | 2022-11-10 | Hyundai Motor Company | Power system for a vehicle |
| CN116039381A (en) * | 2023-02-01 | 2023-05-02 | 北京机械设备研究所 | Power-on and power-off control circuit and control method of electric automobile power supply system |
| CN116141974A (en) * | 2023-02-27 | 2023-05-23 | 三一电动车科技有限公司 | Vehicle power supply device, power supply method and vehicle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203691008U (en) * | 2014-01-10 | 2014-07-02 | 曹小兵 | Electric car voltage divider |
| KR102441505B1 (en) * | 2017-12-11 | 2022-09-07 | 현대자동차주식회사 | Battery charging method for electric vehicle |
-
2023
- 2023-05-31 CN CN202310635609.5A patent/CN116353748A/en active Pending
- 2023-05-31 CN CN202310639162.9A patent/CN116374060A/en active Pending
- 2023-06-07 CN CN202321444098.0U patent/CN220483479U/en active Active
- 2023-06-07 CN CN202321443585.5U patent/CN220518474U/en active Active
- 2023-06-07 CN CN202321447209.3U patent/CN220465680U/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828144A (en) * | 2016-12-26 | 2017-06-13 | 中国第汽车股份有限公司 | A kind of hybrid vehicle DC/DC control methods |
| CN106671814A (en) * | 2016-12-29 | 2017-05-17 | 力帆实业(集团)股份有限公司 | Active safety protection system for power battery pack of electric automobile |
| CN108215905A (en) * | 2018-01-05 | 2018-06-29 | 王黎黎 | A kind of high voltage power battery pack application system wakes up system |
| CN108340856A (en) * | 2018-02-09 | 2018-07-31 | 合肥巨动力系统有限公司 | A kind of new-energy automobile power supply system for cancelling A-battery |
| CN109795370A (en) * | 2019-02-22 | 2019-05-24 | 深圳电擎科技有限公司 | A kind of double source output power battery pack of new-energy automobile |
| CN111959295A (en) * | 2019-05-20 | 2020-11-20 | 福特全球技术公司 | Pure electric range extender electrical topology for battery electric vehicle |
| CN210337644U (en) * | 2019-07-11 | 2020-04-17 | 厦门金龙旅行车有限公司 | New energy automobile power battery full-time monitoring system |
| CN211166521U (en) * | 2019-12-03 | 2020-08-04 | 山东爱德邦智能科技有限公司 | Battery system and power supply management device thereof |
| CN111660871A (en) * | 2020-05-15 | 2020-09-15 | 浙江飞碟汽车制造有限公司 | Novel power supply system and power supply method of new energy automobile |
| CN112543717A (en) * | 2020-09-08 | 2021-03-23 | 华为技术有限公司 | Low-voltage storage battery charging system and method |
| CN112477691A (en) * | 2020-11-23 | 2021-03-12 | 上海融和挚达智能科技有限公司 | Electric vehicle battery management system and method for managing power battery by using same |
| US20220355705A1 (en) * | 2021-05-10 | 2022-11-10 | Hyundai Motor Company | Power system for a vehicle |
| CN114030368A (en) * | 2021-12-16 | 2022-02-11 | 深圳威迈斯新能源股份有限公司 | Electric automobile quick charging system and control method thereof |
| CN116039381A (en) * | 2023-02-01 | 2023-05-02 | 北京机械设备研究所 | Power-on and power-off control circuit and control method of electric automobile power supply system |
| CN116141974A (en) * | 2023-02-27 | 2023-05-23 | 三一电动车科技有限公司 | Vehicle power supply device, power supply method and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116374060A (en) | 2023-07-04 |
| CN220518474U (en) | 2024-02-23 |
| CN220465680U (en) | 2024-02-09 |
| CN220483479U (en) | 2024-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5731543B2 (en) | Battery control apparatus and method | |
| US9034511B2 (en) | Power storage apparatus, connection apparatus, power storage system, electronic device, motor-driven vehicle, and electric power system | |
| US9028988B2 (en) | Battery pack, electricity storage system, electronic apparatus, electrically driven vehicle, electric power system, and control system | |
| CN106627188B (en) | Electric automobile increases journey system | |
| CN101272048B (en) | Vehicle mounted intelligent relay | |
| JP2003174738A (en) | Battery power supply unit for motor-driven vehicle | |
| CN208198145U (en) | The BDU and power battery pack and electric vehicle of power battery pack | |
| CN111546938B (en) | Vehicle hybrid storage battery management system and method | |
| CN110857038A (en) | Power supply system of electric vehicle and power supply method thereof | |
| CN107264449A (en) | A kind of car intelligent power management system | |
| CN220518474U (en) | Power battery | |
| CN209274529U (en) | A kind of integrated PDU system of new-energy automobile | |
| CN111162233A (en) | Battery pack, charging system and automobile | |
| CN116001572A (en) | Battery pack and battery pack management method | |
| CN209822736U (en) | Telephone handset resilience battery pack | |
| CN210137072U (en) | High-voltage distribution box for battery pack group | |
| CN210337644U (en) | New energy automobile power battery full-time monitoring system | |
| CN205595841U (en) | New energy automobile removes charging device | |
| CN217197788U (en) | Electric vehicle | |
| CN216636226U (en) | Power battery management system | |
| CN111376725A (en) | Power battery, maintenance protection device thereof and vehicle | |
| JP2015142442A (en) | Vehicular charging device | |
| CN219626798U (en) | Non-crank started auxiliary lithium ion battery | |
| CN218785929U (en) | Wireless charging and vehicle-mounted charging dual-charging power lithium battery | |
| CN220639529U (en) | Battery distribution box, battery system and 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 |