CN209426577U - Feedback Brake of Electric Vehicle auxiliary power supply circuit - Google Patents
Feedback Brake of Electric Vehicle auxiliary power supply circuit Download PDFInfo
- Publication number
- CN209426577U CN209426577U CN201920059860.0U CN201920059860U CN209426577U CN 209426577 U CN209426577 U CN 209426577U CN 201920059860 U CN201920059860 U CN 201920059860U CN 209426577 U CN209426577 U CN 209426577U
- Authority
- CN
- China
- Prior art keywords
- driving tube
- phase
- module
- diode
- electric vehicle
- 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.)
- Active
Links
Classifications
-
- 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
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A kind of Feedback Brake of Electric Vehicle auxiliary power supply circuit, including three-phase motor, it is characterised in that: further include controller, drive module, power module, three phase rectifier module, regenerative braking supplementary module and speed probe；Power module is that controller and drive module are powered, the control port of controller is connected with the input port of drive module, the output port of drive module is connected with the control port group of three phase rectifier module, speed probe acquires the revolving speed of three-phase motor, and the signal output end of speed probe is connected with the signal acquisition port of controller.Plus after this auxiliary power supply circuit on original regenerative braking circuit, can occur still the function of regenerative braking being allowed effective under the unexpected situation that electric door lock supply voltage disconnects and main power source Battery is disconnected in electric vehicle, ensure that electric vehicle will not be getting faster in the speed that long downhill running travels, it is ensured that the safety problem for the personnel that ride.
Description
Technical field
The utility model relates to new-energy automobile fields, and in particular to a kind of Feedback Brake of Electric Vehicle auxiliary power supply circuit.
Background technique
Electric vehicle long downhill running when driving, regenerative braking can be too fast with restricted speed and can be real in lower speed
Existing energy feedback.The technology that can be realized this function has more method at present.Realizing these methods of this function is all
In the state of guaranteeing that the connection of electric door lock power supply connects good with battery of electric vehicle power supply line.
Current energy feedback technological deficiency is: such as encountering under fortuitous event, the power supply accident power-off or electricity of electric door lock
After the power-off of motor-car battery supply, in long downhill running driving process, speed can be getting faster electric vehicle.This auxiliary power supply circuit
Even if the power supply of regenerative braking part can also be provided in the case where there are both unexpected situations, it is ensured that electric vehicle and riding people
Member is not in safety hazards and causes overvoltage to impact to controller itself.
Utility model content
The utility model in view of the deficiencies of the prior art, proposes Feedback Brake of Electric Vehicle auxiliary power supply circuit, particular technique
Scheme is as follows:
A kind of Feedback Brake of Electric Vehicle auxiliary power supply circuit, including three-phase motor, it is characterised in that: further include controller,
Drive module, power module, three phase rectifier module, regenerative braking supplementary module and speed probe；
The power module is that controller and drive module are powered, the control port of the controller and the drive module
Input port be connected, the output port of the drive module is connected with the control port group of the three phase rectifier module；
The regenerative braking supplementary module includes diode D1, diode D2 and diode D3, the sun of the diode D1
Pole is held with the U phase of three-phase motor to be connected, and the anode of the diode D2 is held with the V phase of three-phase motor to be connected, the diode D3
Anode hold and be connected with the W phase of three-phase motor；
After the cathode of the diode D1, the diode D2 and the diode D3 are interconnected to form common end, warp
Resistance R1 is connected with the input terminal of power module, and the input terminal of the power module is also connected with the cathode of diode D4, this two
The anode of pole pipe D4 is connected with electric door lock supply port；
The speed probe acquires the revolving speed of the three-phase motor, the signal output end of the speed probe with it is described
The signal acquisition port of controller is connected.
Preferably to realize the utility model, may further be: the three phase rectifier module includes driving tube Q1, driving tube
Q2, driving tube Q3, driving tube Q4, driving tube Q5 and driving tube Q6；
The source level of the driving tube Q1 is connected with the drain of the driving tube Q4；
The source level of the driving tube Q2 is connected with the drain of the driving tube Q5；
The source level of the driving tube Q3 is connected with the drain of the driving tube Q6；
The source level of the source level of the driving tube Q1, the source level of driving tube Q2 and driving tube Q3 respectively with the positive supply of main power source
End is connected；
The drain of the drain of the driving tube Q4, the drain of driving tube Q5 and driving tube Q6 respectively with the negative supply of main power source
End is connected；
The common end of the driving tube Q1 and the driving tube Q4 are held with the W phase of the three-phase motor to be connected, the driving
The common end of pipe Q2 and the driving tube Q5 are held with the V phase of the three-phase motor to be connected, the driving tube Q3 and the driving tube
The common end of Q6 is held with the U phase of the three-phase motor to be connected.
Further: the model STM32F302RBT6 of the MCU, the model of the drive module
IRS2186STRPBF。
Utility model works are, in normal condition, the power supply of power module is auxiliary by electric door lock power supply and regenerative braking
Module is helped to provide jointly, specifically, electric door lock power output end passes through two poles in diode D4 and regenerative braking supplementary module
It powers jointly after pipe D1, diode D2 and diode D3 and current-limiting resistance R1 are in parallel, to realize traditional regenerative braking function.
In long downhill running, there is unexpected situation, electric door lock voltage disconnects, automobile under the effect of gravity, along under length
Hill wash every trade is sailed, and motor MOTOR rotates and generate alternating voltage, is rectified by diode D1, diode D2 and diode D3
At direct current it is electrically in parallel after, be supplied to power supply module power supply through current-limiting resistance R1, " the control/driving in the power supply module corresponding diagram 1
Power supply " module.The power module is that controller and drive module are powered, which is the MCU in Fig. 1, so that controller exists
Do not have to be able to achieve regenerative braking function in the state of " electric door lock supply voltage " yet.The speed that electric vehicle is travelled in long downhill running
It will not be getting faster, it is ensured that the safety problem for the personnel that ride.
When there is unexpected situation, battery of electric vehicle Battery power supply is disconnected, long downhill running when driving.Motor
MOTOR rotates and generates alternating voltage, is added on the anode and cathode of main power source by three phase rectifier module, the anode corresponding diagram
On B+ in 1, the B- in the cathode corresponding diagram 1.By driving tube Q1, driving tube Q2, driving tube Q3, driving tube Q4, driving tube Q5
It is added on main power source B+ and B- with the three-phase Half bridge rectifier of driving tube Q6 composition at DC voltage.Diode D1, diode simultaneously
The accessory power supply power supply of D2 and diode D3 and current-limiting resistance R1 composition is still powered to power module.Electric vehicle driving is allowed to control
Device processed is also able to achieve regenerative braking function in the state of no battery of electric vehicle Battery power supply.Electric vehicle hill wash under length
The speed that every trade is sailed will not be getting faster, it is ensured that the safety problem for the personnel that ride.Also motor is avoided to generate when rotating at high speed
Overvoltage impact of the high pressure to control.
The utility model has the following beneficial effects: first, this auxiliary power supply circuit is added on original regenerative braking circuit
It afterwards, can be under the unexpected situation that electric vehicle occurs that electric door lock supply voltage disconnects and battery of electric vehicle Battery power supply disconnects
Still the function of regenerative braking can be allowed effective, it is ensured that electric vehicle will not be getting faster in the speed that long downhill running travels, really
Protect the safety problem for the personnel that ride.
Second, overvoltage impact of the high pressure for avoiding motor from generating when rotating at high speed to control.
Detailed description of the invention
Fig. 1 is the circuit structure diagram of the utility model.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
A kind of Feedback Brake of Electric Vehicle auxiliary power supply circuit as shown in Figure 1:, including three-phase motor further include controller, drive
Dynamic model block, power module, three phase rectifier module, regenerative braking supplementary module and speed probe；
The power module is that controller and drive module are powered, the control port of the controller and the drive module
Input port be connected, the output port of the drive module is connected with the control port group of the three phase rectifier module；
The regenerative braking supplementary module includes diode D1, diode D2 and diode D3, the sun of the diode D1
Pole is held with the U phase of three-phase motor to be connected, and the anode of the diode D2 is held with the V phase of three-phase motor to be connected, the diode D3
Anode hold and be connected with the W phase of three-phase motor；
After the cathode of the diode D1, the diode D2 and the diode D3 are interconnected to form common end, warp
Resistance R1 is connected with the input terminal of power module, and the input terminal of the power module is also connected with the cathode of diode D4, this two
The anode of pole pipe D4 is connected with electric door lock supply port.
The speed probe acquires the revolving speed of the three-phase motor, the signal output end of the speed probe with it is described
The signal acquisition port of controller is connected.
The three phase rectifier module includes driving tube Q1, driving tube Q2, driving tube Q3, driving tube Q4, driving tube Q5 and drive
Dynamic pipe Q6, the source level of the driving tube Q1 are connected with the drain of the driving tube Q4, the source level of the driving tube Q2 and the drive
The drain of dynamic pipe Q5 is connected, and the source level of the driving tube Q3 is connected with the drain of the driving tube Q6.
The source level of the source level of the driving tube Q1, the source level of driving tube Q2 and driving tube Q3 respectively with the positive supply of main power source
End is connected；
The drain of the drain of the driving tube Q4, the drain of driving tube Q5 and driving tube Q6 respectively with the negative supply of main power source
End is connected；
The common end of the driving tube Q1 and the driving tube Q4 are held with the W phase of the three-phase motor to be connected, the driving
The common end of pipe Q2 and the driving tube Q5 are held with the V phase of the three-phase motor to be connected, the driving tube Q3 and the driving tube
The common end of Q6 is held with the U phase of the three-phase motor to be connected.
The model STM32F302RBT6 of the MCU, the model IRS2186STRPBF of the drive module.
The present embodiment specific works are that as shown in figure 1, in normal operating conditions, VCC is electric door lock power supply, through isolation two
Pole pipe D4 is added to power module, diode D1 held with U phase be connected, diode D2 and V phase holds connected, diode D3 and W Xiang Duanxiang
Even, the output voltage of motor MOTOR is made up of after the diode rectification on triple line UVW is in parallel current-limiting resistance R1
Then voltage after three phase rectifier is added to control/driving power module input terminal by regenerative braking auxiliary power module, control
Supply voltage needed for system/driving power module provides work to MCU and drive module；
MCU closes U according to the tach signal of external status and motor feedback, V, the upper bridge PWM driving signal of W three-phase,
MCU sends U, and V, the lower bridge PWM drive signal of W three-phase is to drive module；Drive module drives U, the lower bridge PWM of V, W three-phase
U, V, lower bridge driving tube Q4, Q5, Q6 of W three-phase are sent to after signal voltage amplification.Allow U, V, the lower bridge driving tube Q4 of W three-phase,
Q5, Q6 are simultaneously turned on, and by by U, V, W three-phase ground, motor MOTOR realizes electrodynamic braking function.Motor MOTOR system
Dynamic torque can pass through bridge PWM drive signal width adjusting under the three-phase of controller MCU.U, V, W triple line are separately connected three
Phase MOTOR.
After electric door lock powers VCC and the disconnection of battery of electric vehicle Battery power supply, electric vehicle is travelled in long downhill running,
MOTOR rotation generates alternating voltage, is rectified all the way by regenerative braking auxiliary power module and to be added to driving/control after being isolated electric
Source module is powered to controller and drive module.The tach signal that the MCU of controller is fed back according to external status and MOTOR, is closed
U, V are closed, the upper bridge PWM drive signal of W three-phase sends U, and V, the lower bridge PWM drive signal of W three-phase is to drive module；Drive mould
U, V are sent to U, V, the lower bridge driving tube Q4 of W three-phase, driving by block after the lower bridge PWM drive signal voltage amplification of W three-phase
Pipe Q5 and driving tube Q6.U, V, lower bridge driving tube Q4, driving tube Q5 and the driving tube Q6 of W three-phase is allowed to simultaneously turn on.To realize system
Dynamic function.The torque of MOTOR braking can pass through bridge PWM drive signal width adjusting under the three-phase of controller MCU.
Battery of electric vehicle Battery is used to provide power supply for three-phase semi-bridge rectifier module, in the present embodiment, even if battery
Battery cannot work, MOTOR rotation generate alternating voltage another way by driving tube Q1, driving tube Q2, driving tube Q3,
The three-phase Half bridge rectifier of driving tube Q4, driving tube Q5 and driving tube Q6 composition is added in battery of electric vehicle line B+ and B- at DC voltage
On.Can also there be power supply to realize regenerative braking function in no battery of electric vehicle Battery.
Claims (3)
1. a kind of Feedback Brake of Electric Vehicle auxiliary power supply circuit, including three-phase motor, it is characterised in that: further include controller MCU,
Drive module, power module, three phase rectifier module, regenerative braking supplementary module and speed probe；
The power module is controller MCU and drive module is powered, the control port of the controller MCU and the driving mould
The input port of block is connected, and the output port of the drive module is connected with the control port group of the three phase rectifier module；
The regenerative braking supplementary module includes diode D1, diode D2 and diode D3, the anode of the diode D1 with
The U phase of three-phase motor is held connected, and the anode of the diode D2 is held with the V phase of three-phase motor to be connected, the sun of the diode D3
Pole is held with the W phase of three-phase motor to be connected；
After the cathode of the diode D1, the diode D2 and the diode D3 are interconnected to form common end, through resistance
R1 is connected with the input terminal of power module, and the input terminal of the power module is also connected with the cathode of diode D4, the diode
The anode of D4 is connected with electric door lock supply port；
The speed probe acquires the revolving speed of the three-phase motor, the signal output end of the speed probe and the control
The signal acquisition port of device is connected.
2. Feedback Brake of Electric Vehicle auxiliary power supply circuit according to claim 1, it is characterised in that: the three phase rectifier module
Including driving tube Q1, driving tube Q2, driving tube Q3, driving tube Q4, driving tube Q5 and driving tube Q6；
The driving tube Q1, driving tube Q2, driving tube Q3, driving tube Q4, driving tube Q5 and driving tube Q6 control terminal with drive
The output port of dynamic model block is connected；
The source level of the driving tube Q1 is connected with the drain of the driving tube Q4；
The source level of the driving tube Q2 is connected with the drain of the driving tube Q5；
The source level of the driving tube Q3 is connected with the drain of the driving tube Q6；
The source level of the source level of the driving tube Q1, the source level of driving tube Q2 and driving tube Q3 respectively with the positive power source terminal phase of main power source
Even；
The drain of the drain of the driving tube Q4, the drain of driving tube Q5 and driving tube Q6 respectively with the negative power end phase of main power source
Even；
The common end of the driving tube Q1 and the driving tube Q4 are held with the W phase of the three-phase motor to be connected, the driving tube Q2
It holds and is connected with the V phase of the three-phase motor with the common end of the driving tube Q5, the driving tube Q3 and the driving tube Q6's
Common end is held with the U phase of the three-phase motor to be connected.
3. Feedback Brake of Electric Vehicle auxiliary power supply circuit according to claim 1, it is characterised in that: the model of the MCU
STM32F302RBT6, the model IRS2186STRPBF of the drive module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920059860.0U CN209426577U (en) | 2019-01-15 | 2019-01-15 | Feedback Brake of Electric Vehicle auxiliary power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920059860.0U CN209426577U (en) | 2019-01-15 | 2019-01-15 | Feedback Brake of Electric Vehicle auxiliary power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209426577U true CN209426577U (en) | 2019-09-24 |
Family
ID=67976482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920059860.0U Active CN209426577U (en) | 2019-01-15 | 2019-01-15 | Feedback Brake of Electric Vehicle auxiliary power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209426577U (en) |
-
2019
- 2019-01-15 CN CN201920059860.0U patent/CN209426577U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103042927B (en) | A kind of trailer protective circuit of new-energy automobile and its implementation | |
| CN104590043B (en) | Energy management system for range extending type electric car and method thereof | |
| CN102166962A (en) | Brake energy feedback control system of pure electric automobile | |
| CN102166963A (en) | Brake energy feedback control method of pure electric automobile | |
| US9862276B2 (en) | Fault protection for electric drive systems | |
| CN103640495B (en) | Electric vehicle wheel motor drive control system | |
| CN108638983A (en) | A kind of electric motor coach double source servo steering system and control method | |
| CN104802645A (en) | Parallel type electric vehicle regeneration brake system and control method thereof | |
| CN104120752A (en) | Alternating current/storage battery dual-purpose electric excavator | |
| CN102765332B (en) | A kind of control system of pure electric coach and control method thereof | |
| CN204150102U (en) | Plug-in hybrid-power automobile steering safety protection system | |
| CN209426577U (en) | Feedback Brake of Electric Vehicle auxiliary power supply circuit | |
| CN204547809U (en) | Electric transmission dumping car power system and electric transmission dumping car | |
| CN205186269U (en) | Automobile -used couple of source low pressure electric power steering system | |
| CN201781389U (en) | Dual-power hub-type DC motor structure | |
| CN207274416U (en) | A kind of four-wheel driving electric vehicle transmission system | |
| CN206765826U (en) | A kind of power control system of electric forklift | |
| CN203844620U (en) | Electric car brake energy feedback control device | |
| CN204641428U (en) | For the Intelligent brushless motor controller of battery-driven car | |
| CN201080141Y (en) | Forward and reverse running controller for electric vehicle | |
| CN205836576U (en) | A kind of stringing formula permanent magnet synchronous electric locomotive | |
| CN109291914B (en) | Voltage protection method of hybrid electric vehicle | |
| CN207106776U (en) | The power-off type brake apparatus of the automobile-used controlled motor power output of electric three-wheel | |
| CN204506589U (en) | A kind of energy management system of range-extended electric automobile | |
| CN207449821U (en) | A kind of multiaxis wheel drive electric automobile distributed AC servo system power distribution system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |