CN207611254U - A kind of super capacitor controller for electric vehicle based on CAN bus - Google Patents
A kind of super capacitor controller for electric vehicle based on CAN bus Download PDFInfo
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- CN207611254U CN207611254U CN201721504151.6U CN201721504151U CN207611254U CN 207611254 U CN207611254 U CN 207611254U CN 201721504151 U CN201721504151 U CN 201721504151U CN 207611254 U CN207611254 U CN 207611254U
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- electric vehicle
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- super capacitor
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a kind of super capacitor controller for electric vehicle based on CAN bus, including energy-storage units, parameter acquisition unit, single chip control unit, storage unit and communication unit, energy-storage units include two ultracapacitors and the two-way choppers of DC DC.The utility model takes full advantage of the energy storage capacity of ultracapacitor, improve the efficiency of high-level energy regenerating, it is capable of the charging and discharging currents of smooth power battery, extend the service life of power battery, substantially increase a course continuation mileage number of electric vehicle and can be in automobile starting, accelerate and be effectively improved when climbing the kinetic characteristic of electric vehicle, which employs modularized designs, versatility is good, flexibility is strong, not only realize the function of DC DC transformation, it is alternatively arranged as development platform, expanded application is in the design of various controller, have a very wide range of applications foreground.
Description
Technical field
The utility model is related to batteries of electric automobile technical field, more particularly to a kind of electric vehicle based on CAN bus
With super capacitor controller.
Background technology
New-energy automobile refer to using unconventional vehicle fuel (or using conventional vehicle fuel but load new type power fill
Set), the automobile with new technology, new construction and advanced technology principle.Wherein pure electric automobile (BEV), hybrid electric vapour
Vehicle (HEV) and fuel cell electric vehicle (FCEV) development prospect are the best, and at present country widely popularize it is main new
Energy vehicle.
Regenerative braking is to be stored in the kinetic energy of vehicle in the energy storage device of electric vehicle again by the generator of motor
It is recycled.Regenerative braking occupies status outstanding in the energy regenerating of electric vehicle, in the energy pipe of electric vehicle
In reason system, it is desirable that can the energy as much as possible using regenerative braking feedback.Generally use absorbs again to accumulator charging
The energy of raw feedback braking, the disadvantage is that accumulator is difficult to realize short time high-power charging and charge and discharge cycles number is limited,
It is of high cost.
Utility model content
(1) the technical issues of solving
To solve the above-mentioned problems, the utility model provides a kind of super capacitor for electric vehicle based on CAN bus
Controller takes full advantage of the energy storage capacity of ultracapacitor, improves the efficiency of high-level energy regenerating, being capable of smooth power
The charging and discharging currents of battery extend the service life of power battery.
(2) technical solution
A kind of super capacitor controller for electric vehicle based on CAN bus, including energy-storage units, parameter acquisition unit,
Single chip control unit, storage unit and communication unit；
The energy-storage units provide power supply, output driving direct current generator by power battery；
The parameter acquisition unit includes voltage detecting sensor and current detection sensor, to the electricity of the energy-storage units
Pressure and current signal are sampled, and are sent to the Chip Microcomputer A/D C input channels of the single chip control unit；
The single chip control unit handles the data of reception, and exports pwm pulse signal and control the energy storage
Unit carries out voltage adjusting；
The storage unit stores the data of the single chip control unit processing；
The communication unit communicates for CAN interface, and the single chip control unit passes through the CAN interface communication access vehicle
CAN bus is carried, data exchange is carried out with whole-control system.
Further, the energy-storage units include two ultracapacitors and the two-way choppers of DC-DC, the DC-DC bis-
Include the first~the 4th power switch tube and inductance to chopper.
Further, the voltage detecting sensor selects Hall voltage sensor, the current detection sensor to select
Hall current sensor.
Further, the single chip control unit includes Common Language Runtime, microcontroller, optical coupling isolator and lock
Storage, wherein the Common Language Runtime selects GAL16V8, the microcontroller to select N80C196KC, the light-coupled isolation
Device selects TLP521-4, the latch to select 74LS373.
Further, the storage unit selects ultraviolet erasing electrically programmable read-only memory 27256.
Further, CAN interface communication include CAN communication controller, the first and second high speed photo coupling isolators,
The capacitance of CAN bus transceiver or door, the first and second rheostats, quartz crystal oscillator, third~the 7th and the first~the 5th resistance,
The wherein described CAN communication controller selects SJA1000, and the first and second high speed photo couplings isolator selects 6N137, described
CAN bus transceiver selects PCA82C250, described or door to select 74LS04.
Preferably, the communication unit further includes RS232 interface communication, the single chip control unit passes through described
RS232 is communicated carries out data exchange with host computer.
Preferably, MAX232 is selected in the RS232 interface communication.
(3) advantageous effect
The utility model provides a kind of super capacitor controller for electric vehicle based on CAN bus, takes full advantage of
The energy storage capacity of ultracapacitor improves the efficiency of high-level energy regenerating, is capable of the charging and discharging currents of smooth power battery,
The service life for extending power battery, substantially increase a course continuation mileage number of electric vehicle and can automobile starting, plus
The kinetic characteristic of electric vehicle is effectively improved when speed and climbing, which employs modularized designs, and versatility is good, and flexibility is strong, no
The function of only realizing DC-DC transformation, is alternatively arranged as development platform, expanded application has very in the design of various controller
It is widely applied foreground.
Description of the drawings
Fig. 1 is that a kind of super capacitor controller for electric vehicle based on CAN bus involved by the utility model is
System structure diagram.
Fig. 2 is a kind of storage of super capacitor controller for electric vehicle based on CAN bus involved by the utility model
It can element circuit schematic diagram.
Fig. 3 is a kind of list of super capacitor controller for electric vehicle based on CAN bus involved by the utility model
Piece machine control unit circuit diagram.
Fig. 4 is a kind of CAN of super capacitor controller for electric vehicle based on CAN bus involved by the utility model
Interface communication circuitry schematic diagram.
Specific implementation mode
The embodiment involved by the utility model is described in further details below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of super capacitor controller for electric vehicle based on CAN bus, including energy-storage units, parameter
Collecting unit, single chip control unit, storage unit and communication unit；Energy-storage units provide power supply by power battery, and output is driven
Dynamic direct current generator；Parameter acquisition unit includes voltage detecting sensor and current detection sensor, voltage to energy-storage units and
Current signal is sampled, and is sent to the Chip Microcomputer A/D C input channels of single chip control unit；Single chip control unit is to reception
Data are handled, and are exported pwm pulse signal control energy-storage units and carried out voltage adjusting；Storage unit stores microcontroller control
The data of cell processing；Communication unit communicates for CAN interface, and single chip control unit passes through CAN interface communication access vehicle-mounted CAN
Bus carries out data exchange with whole-control system.
As shown in Fig. 2, energy-storage units include the two-way chopper of ultracapacitor C1, C2 and DC-DC, the two-way copped waves of DC-DC
Device includes power switch tube T1~T4 and inductance L1.E1 is power battery, and M1 is direct current generator.Ultracapacitor be it is a kind of between
Energy-storage travelling wave tube between battery and electrostatic condenser has the energy density more much higher than electrostatic condenser and more much higher than battery
Power density, be suitable as short time power output source, it have such as specific power (unit mass or volume output work(
Rate) it is high, bigger, an energy storage is more than energy (unit mass or the electricity of volume output) the advantages that, therefore can greatly improve electronic
Course continuation mileage number of automobile and the kinetic characteristic that electric vehicle can be effectively improved in automobile starting, acceleration and climbing.
The direct current generator M1 of electric vehicle should have wide speed adjustable range and high rotating speed, sufficiently large starting torque, effect
Rate is high and has dynamic brake strong and the performance of energy feedback.The two-way choppers of DC-DC be power battery E1 and direct current generator M1 it
Between a cycle break-make switch controlling device, its effect be change supply direct current generator M1 or ultracapacitor C1 and
The voltage of C2 actually works as a voltage-regulating system.Electric vehicle in startup, acceleration and constant-speed operation,
Ultracapacitor C1 and C2 electric discharge, supplies direct current generator M1 electric energy, and direct current generator M1 is in motoring condition, realizes electric energy to machinery
The transformation of energy, driving vehicle advance.When electric vehicle slows down, direct current generator M1 is in dynamic brake state, that is, is in regeneration
On-position is realized conversion of the mechanical energy to electric energy, is realized to energy storage device ultracapacitor C1 and the C2 charging as power supply
Regenerate energy regenerating.
The microcontroller of single chip control unit exports 4 road pwm pulse signals, controls 4 power of the two-way choppers of DC-DC
The duty cycle of switching of switching tube is, it can be achieved that 6 kinds of control models：
(1) electronic boosting.Power switch tube T1 is fully on, T4 copped waves；T2 and T3 shutdowns.Ultracapacitor C1 and C2 this
When be operated under discharge mode, voltage be more than direct current generator M1 rated voltage, the two-way choppers of DC-DC can only carry out electronic
Boosting inverter provides electric energy to direct current generator M1.
(2) electronic decompression.Power switch tube T4 is completely switched off, T1 copped waves；T2 and T3 shutdowns.Ultracapacitor C1 and C2 this
When be operated under discharge mode, voltage be less than direct current generator M1 rated voltage, the two-way choppers of DC-DC can only carry out electronic
Decompression transformation provides electric energy to direct current generator M1.
(3) electronic straight defeated.Power switch tube T4 is completely switched off, and T1 is fully on；T2 and T3 shutdowns.Ultracapacitor C1 and
C2 is operated under discharge mode at this time, and voltage is approximately equal to the rated voltage of direct current generator M1, the two-way choppers of DC-DC without
Buck converts, and direct current generator M1 is directly output to by the voltage of ultracapacitor C1 and C2 input.
(4) braking boosting.Power switch tube T3 is fully on, T2 copped waves；T1 and T4 shutdowns.Ultracapacitor C1 and C2 this
When be operated under charge mode, rated voltage is more than the voltage of direct current generator M1 supply, and the two-way choppers of DC-DC can only carry out
Boosting inverter is braked, electric energy is provided to ultracapacitor C1 and C2.
(5) braking decompression.Power switch tube T2 is completely switched off, T3 copped waves；T1 and T4 shutdowns.Ultracapacitor C1 and C2 this
When be operated under charge mode, rated voltage is less than the voltage of direct current generator M1 supply, and the two-way choppers of DC-DC can only carry out
Decompression transformation is braked, electric energy is provided to ultracapacitor C1 and C2.
(6) braking is straight defeated.Power switch tube T2 is completely switched off, and T3 is fully on；T1 and T4 shutdowns.Ultracapacitor C1 and
C2 is operated under discharge mode at this time, and rated voltage is approximately equal to the voltage of direct current generator M1 supplies, and the two-way choppers of DC-DC are not
Buck transformation is carried out, the input voltage supplied by direct current generator M1 is directly output to ultracapacitor C1 and C2.
Parameter acquisition unit includes voltage detecting sensor and current detection sensor, and voltage detecting sensor selects Hall
Voltage sensor, current detection sensor select Hall current sensor, acquire the voltage and current letter of ultracapacitor respectively
Number, and the Chip Microcomputer A/D C input channels for being sent into single chip control unit are handled.
As shown in figure 3, single chip control unit includes Common Language Runtime U1, microcontroller U3, optical coupling isolator U2
GAL16V8, microcontroller U3 is selected to select N80C196KC, optical coupling isolator with latch U4, wherein Common Language Runtime U1
U2 selects TLP521-4, latch U4 to select 74LS373.This system requires output 4 road pwm pulse signal pair, 4 power switch
Pipe is controlled, therefore is directly connected to using the PWM mouths of general array logic chip 16V8 and microcontroller N80C196KC, real
Existing 4 road pwm pulse signal output, the duty cycle of switching of 4 power switch tubes of Time-sharing control carry out voltage adjusting.Storage unit
U5 selects ultraviolet erasing electrically programmable read-only memory 27256, is deposited to the voltage and current data of N80C196KC processing
Storage.N80C196KC is acquired and handles to the voltage and current signals of ultracapacitor, realizes to electric automobile super capacitance
The monitoring of the signals such as the voltage and current of device.
Electric automobile energy management system need to detect and exchange mass data, be difficult to solve by the way of connecing signal wire firmly
Problem, and cost is higher, using vehicle-mounted CAN bus come to realize its internal data communication be then a kind of effective method.CAN is total
Line has remarkable performance and high reliability, can be worked with multiple host pattern, and each module of system can be made to realize multi-host communication,
Under multiple host pattern work, any node actively can send information to other nodes at any time in bus, regardless of principal and subordinate, lead to
Letter mode is flexible.Nodal information in CAN bus is divided into different priority, can meet different requirement of real time.
As shown in figure 4, CAN interface communication includes CAN communication controller U6, high speed photo coupling isolator U8 and U9, CAN bus
Transceiver U10 or door U7, rheostat Rw1 and Rw2, quartz crystal oscillator X1, capacitance C3~C7 and resistance R1~R5, wherein CAN communication
Controller U6 selects SJA1000, high speed photo coupling isolator U8 and U9 that 6N137, CAN bus transceiver U10 is selected to select
PCA82C250 or door U7 select 74LS04.Microcontroller N80C196KC is led to by vehicle-mounted CAN bus with whole-control system
Letter, whole-control system is sent to by the state parameter of energy-storage units in the form of message, while receiving whole-control system transmission
Electric vehicle acceleration deceleration state information.
Communication unit further includes RS232 interface communication, and single chip control unit is by RS232 communications with host computer into line number
According to exchange.Microcontroller N80C196KC is connected by the serial ports of MAX232 and host computer, realizes two-way communication, microcontroller
N80C196KC uploads data, and host computer can carry out data storage or curve matching.
The utility model provides a kind of super capacitor controller for electric vehicle based on CAN bus, takes full advantage of
The energy storage capacity of ultracapacitor improves the efficiency of high-level energy regenerating, is capable of the charging and discharging currents of smooth power battery,
The service life for extending power battery, substantially increase a course continuation mileage number of electric vehicle and can automobile starting, plus
The kinetic characteristic of electric vehicle is effectively improved when speed and climbing, which employs modularized designs, and versatility is good, and flexibility is strong, no
The function of only realizing DC-DC transformation, is alternatively arranged as development platform, expanded application has very in the design of various controller
It is widely applied foreground.
Embodiment described above is only that preferred embodiments of the present invention are described, not to this practicality
Novel conception and scope is defined.Without departing from the design concept of the present utility model, ordinary people in the field couple
The all variations and modifications that the technical solution of the utility model is made, should fall within the protection scope of the present utility model, this reality
With novel claimed technology contents, all record in detail in the claims.
Claims (8)
1. a kind of super capacitor controller for electric vehicle based on CAN bus, it is characterised in that：Including energy-storage units, parameter
Collecting unit, single chip control unit, storage unit and communication unit；
The energy-storage units provide power supply, output driving direct current generator by power battery；
The parameter acquisition unit includes voltage detecting sensor and current detection sensor, voltage to the energy-storage units and
Current signal is sampled, and is sent to the Chip Microcomputer A/D C input channels of the single chip control unit；
The single chip control unit handles the data of reception, and exports pwm pulse signal and control the energy-storage units
Carry out voltage adjusting；
The storage unit stores the data of the single chip control unit processing；
The communication unit communicates for CAN interface, and the single chip control unit is vehicle-mounted by the CAN interface communication access
CAN bus carries out data exchange with whole-control system.
2. a kind of super capacitor controller for electric vehicle based on CAN bus according to claim 1, feature exist
In：The energy-storage units include two ultracapacitors and the two-way choppers of DC-DC, and the two-way choppers of DC-DC include the
One~the 4th power switch tube and inductance.
3. a kind of super capacitor controller for electric vehicle based on CAN bus according to claim 1, feature exist
In：The voltage detecting sensor selects Hall voltage sensor, the current detection sensor to select Hall current sensor.
4. a kind of super capacitor controller for electric vehicle based on CAN bus according to claim 1, feature exist
In：The single chip control unit includes Common Language Runtime, microcontroller, optical coupling isolator and latch, wherein described
Common Language Runtime selects GAL16V8, the microcontroller that N80C196KC, the optical coupling isolator is selected to select TLP521-
4, the latch selects 74LS373.
5. a kind of super capacitor controller for electric vehicle based on CAN bus according to claim 1, feature exist
In：The storage unit selects ultraviolet erasing electrically programmable read-only memory 27256.
6. a kind of super capacitor controller for electric vehicle based on CAN bus according to claim 1, feature exist
In：CAN interface communication include CAN communication controller, the first and second high speed photo coupling isolators, CAN bus transceiver or
Door, the capacitance of the first and second rheostats, quartz crystal oscillator, third~the 7th and the first~the 5th resistance, wherein the CAN communication control
Device processed selects SJA1000, the first and second high speed photo couplings isolator that 6N137, the CAN bus transceiver is selected to select
PCA82C250, described or door select 74LS04.
7. a kind of super capacitor controller for electric vehicle based on CAN bus according to claim 1, feature exist
In：The communication unit further include RS232 interface communication, the single chip control unit by the RS232 communicate with it is upper
Machine carries out data exchange.
8. a kind of super capacitor controller for electric vehicle based on CAN bus according to claim 7, feature exist
In：MAX232 is selected in the RS232 interface communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721504151.6U CN207611254U (en) | 2017-11-13 | 2017-11-13 | A kind of super capacitor controller for electric vehicle based on CAN bus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721504151.6U CN207611254U (en) | 2017-11-13 | 2017-11-13 | A kind of super capacitor controller for electric vehicle based on CAN bus |
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| CN207611254U true CN207611254U (en) | 2018-07-13 |
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| CN201721504151.6U Expired - Fee Related CN207611254U (en) | 2017-11-13 | 2017-11-13 | A kind of super capacitor controller for electric vehicle based on CAN bus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621801A (en) * | 2017-11-13 | 2018-01-23 | 湖州靖源信息技术有限公司 | A kind of super capacitor controller used for electric vehicle based on CAN |
| CN109270339A (en) * | 2018-09-19 | 2019-01-25 | 广东风华高新科技股份有限公司 | A kind of pulse power test macro and method |
-
2017
- 2017-11-13 CN CN201721504151.6U patent/CN207611254U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621801A (en) * | 2017-11-13 | 2018-01-23 | 湖州靖源信息技术有限公司 | A kind of super capacitor controller used for electric vehicle based on CAN |
| CN109270339A (en) * | 2018-09-19 | 2019-01-25 | 广东风华高新科技股份有限公司 | A kind of pulse power test macro and method |
| CN109270339B (en) * | 2018-09-19 | 2021-09-17 | 广东风华高新科技股份有限公司 | Pulse power testing method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180713 Termination date: 20181113 |