CN203326730U - Regenerative braking energy efficient feedback device of all-electric vehicle - Google Patents
Regenerative braking energy efficient feedback device of all-electric vehicle Download PDFInfo
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- CN203326730U CN203326730U CN2013204405775U CN201320440577U CN203326730U CN 203326730 U CN203326730 U CN 203326730U CN 2013204405775 U CN2013204405775 U CN 2013204405775U CN 201320440577 U CN201320440577 U CN 201320440577U CN 203326730 U CN203326730 U CN 203326730U
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Abstract
A regenerative braking energy efficient feedback device of an all-electric vehicle relates to a regenerative braking energy feedback device. The utility model aims to solve the problems that a conventional electric vehicle braking system cannot provided the good braking ability, that the energy feedback efficiency is low, and that the motor is greatly damaged during the braking. The regenerative braking energy efficient feedback device of the utility model comprises a storage battery, a first Hall current sensor, a second Hall current sensor, a super capacitor, a three-phase inverter, a third Hall current sensor, a direct current brushless motor, a Hall position signal circuit, a processor, a braking force pedal, and a power pedal, and also comprises a bidirectional DC / DC converter, a super capacitor monitoring circuit, a storage battery monitoring circuit, a first isolation drive circuit, a second isolation drive circuit, a first signal processing circuit, a second signal processing circuit and a third signal processing circuit; and a processing circuit of the processor includes a comparator ADC7, three resistors and a sliding rheostat R27. The regenerative braking energy efficient feedback device of the all-electric vehicle is applied to the electric vehicle.
Description
Technical field
The utility model relates to a kind of regenerative braking energy feedback device.
Background technology
Electric motor car regenerative braking energy feedback device is to extend service time of battery, improves the important leverage of electric motor car stopping power.Energy when electric motor car regenerative braking energy feedback device needs to reclaim braking efficiently, and need to provide large controlled stopping power simultaneously.The braking system of at present electric motor car can not provide good stopping power mostly, and energy feedback efficiency is not high yet, and excessive to the motor damage during braking, very easily causes motor to generate heat in braking procedure, has shortened the useful life of motor.
Pure electric vehicle regenerative braking energy feedback device is the important component part of pure electric vehicle.Make pure electric vehicle extend the service time of battery, and will obtain good braking ability, the regenerative braking energy feedback device is all indispensable.
The utility model content
The utility model purpose is can not provide good stopping power in order to solve existing electric parking brake system, and energy feedback efficiency is lower, and during braking to the larger problem of motor damage, provide a kind of pure electric vehicle regenerating braking energy efficient feedback device.
The efficient feedback device of pure electric vehicle regenerating braking energy described in the utility model, it comprises storage battery, the first Hall current sensor, the second Hall current sensor, super capacitor, three-phase inverter, the 3rd Hall current sensor, DC brushless motor, hall sensor signal circuit, processor, braking force pedal and power pedal
It also comprises two-way DC/DC converter, super capacitor supervisory circuit, battery monitoring circuit, the first isolated drive circuit, the second isolated drive circuit, first signal treatment circuit, secondary signal treatment circuit and the 3rd signal processing circuit,
The electrical signal of storage battery connects the electric signal input end of battery monitoring circuit, and the electric weight pilot signal output of battery monitoring circuit connects the electric weight pilot signal input of processor,
Be connected with the first Hall current sensor between storage battery and two-way DC/DC converter, the current signal output end of the first Hall current sensor connects the current signal input of the 3rd signal processing circuit, the current signal output end of the 3rd signal processing circuit connects the first current signal input of processor
Be connected with the second Hall current sensor between two-way DC/DC converter and super capacitor, the current signal output end of the second Hall current sensor connects the current signal input of secondary signal treatment circuit, the current signal output end of secondary signal treatment circuit connects the second current signal input of processor
The electrical signal of super capacitor connects the electric signal input end of super capacitor supervisory circuit, and the electric capacity pilot signal output of super capacitor supervisory circuit connects the electric capacity pilot signal input of processor,
Be connected with the 3rd Hall current sensor between three-phase inverter and DC brushless motor, the current signal output end of the 3rd Hall current sensor connects the current signal input of first signal treatment circuit, the current signal output end of first signal treatment circuit connects the 3rd current signal input of processor
The signal output part of DC brushless motor connects the signal input part of hall sensor signal circuit, and the position signalling output of hall sensor signal circuit connects the position signalling input of processor,
The first current signal output end of processor connects the current signal input of the second isolated drive circuit, and the current signal output end of the second isolated drive circuit connects the current signal input of two-way DC/DC converter,
The second current signal output end of processor connects the current signal input of the first isolated drive circuit, and the current signal output end of the first isolated drive circuit connects the current signal input of three-phase inverter,
The braking force signal output part of braking force pedal connects the braking force signal input part of processor,
The power signal output of power pedal connects the power signal input of processor.
Described processor adopting TMS320F2812 realizes.
The treatment circuit that processor receives the power signal of power pedal comprises comparator ADC7, three resistance R 23, R24, R26 and slide rheostat R27, the negative input end while contact resistance R24 of comparator ADC7 and an end of resistance R 26, stiff end one end of the other end of resistance R 24 and slide rheostat R27 meets GND simultaneously, the stiff end other end of the other end of resistance R 26 and slide rheostat R27 connects 3.3V voltage simultaneously, the sliding end of slide rheostat R27 connects the positive input terminal of comparator ADC7, the end of the output contact resistance R23 of comparator ADC7, the other end of resistance R 23 is connected 3.3V voltage with the voltage input end of comparator ADC7 simultaneously, the earth terminal of comparator ADC7 connects GND.
The treatment circuit that processor receives the braking force signal of braking force pedal comprises comparator ADC6, three resistance R 20, R21, R22 and slide rheostat R25, the negative input end while contact resistance R20 of comparator ADC6 and an end of resistance R 21, stiff end one end of the other end of resistance R 20 and slide rheostat R25 meets GND simultaneously, the stiff end other end of the other end of resistance R 21 and slide rheostat R25 connects 3.3V voltage simultaneously, the sliding end of slide rheostat R25 connects the positive input terminal of comparator ADC6, the end of the output contact resistance R22 of comparator ADC6, the other end of resistance R 22 is connected 3.3V voltage with the voltage input end of comparator ADC6 simultaneously, the earth terminal of comparator ADC6 connects GND.
Comparator ADC6 and comparator ADC7 all adopt LM393 to realize.
Advantage of the present utility model: the utility model is attached to super capacitor on the inverter bus, the energy of feedback while by super capacitor, absorbing braking, and it provides High-current output simultaneously while also starting for electric motor car.
Through actual detection, the utility model has reached Expected Results, the energy in the time of well reclaiming the electric motor car braking, and under the maximum braking force state, energy recovery efficiency can reach more than 62%, has effectively extended the useful life of battery.Can control the size of braking force, and startability is good.
The accompanying drawing explanation
Fig. 1 is the theory diagram of the efficient feedback device of pure electric vehicle regenerating braking energy described in the utility model;
Fig. 2 is the circuit theory diagrams of storage battery described in the utility model;
Fig. 3 is that the A of three-phase inverter described in the utility model goes up brachium pontis power switch tube drives buffer circuit schematic diagram mutually;
Fig. 4 is A phase current signal acquisition process circuit theory diagrams;
Fig. 5 is battery tension signal acquisition processing circuit schematic diagram;
Fig. 6 is the signal processing circuit schematic diagram of power pedal described in the utility model;
Fig. 7 is the signal processing circuit schematic diagram of braking force pedal described in the utility model;
Fig. 8 is the use resource connecting circuit schematic diagram of processor TMS320F2812.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, the efficient feedback device of the described pure electric vehicle regenerating braking energy of present embodiment, it comprises storage battery 1, the first Hall current sensor 2, the second Hall current sensor 4, super capacitor 5, three-phase inverter 6, the 3rd Hall current sensor 7, DC brushless motor 8, hall sensor signal circuit 9, processor 14, braking force pedal 15 and power pedal 16
It also comprises two-way DC/DC converter 3, super capacitor supervisory circuit 12, battery monitoring circuit, the first isolated drive circuit 10, the second isolated drive circuit 17, first signal treatment circuit 11, secondary signal treatment circuit 13 and the 3rd signal processing circuit 18
The electrical signal of storage battery 1 connects the electric signal input end of battery monitoring circuit, and the electric weight pilot signal output of battery monitoring circuit connects the electric weight pilot signal input of processor 14,
Be connected with the first Hall current sensor 2 between storage battery 1 and two-way DC/DC converter 3, the current signal output end of the first Hall current sensor 2 connects the current signal input of the 3rd signal processing circuit 18, the current signal output end of the 3rd signal processing circuit 18 connects the first current signal input of processor 14
Be connected with the second Hall current sensor 4 between two-way DC/DC converter 3 and super capacitor 5, the current signal output end of the second Hall current sensor 4 connects the current signal input of secondary signal treatment circuit 13, the current signal output end of secondary signal treatment circuit 13 connects the second current signal input of processor 14
The electrical signal of super capacitor 5 connects the electric signal input end of super capacitor supervisory circuit 12, and the electric capacity pilot signal output of super capacitor supervisory circuit 12 connects the electric capacity pilot signal input of processor 14,
Be connected with the 3rd Hall current sensor 7 between three-phase inverter 6 and DC brushless motor 8, the current signal output end of the 3rd Hall current sensor 7 connects the current signal input of first signal treatment circuit 11, the current signal output end of first signal treatment circuit 11 connects the 3rd current signal input of processor 14
The signal output part of DC brushless motor 8 connects the signal input part of hall sensor signal circuit 9, and the position signalling output of hall sensor signal circuit 9 connects the position signalling input of processor 14,
The first current signal output end of processor 14 connects the current signal input of the second isolated drive circuit 17, and the current signal output end of the second isolated drive circuit 17 connects the current signal input of two-way DC/DC converter 3,
The second current signal output end of processor 14 connects the current signal input of the first isolated drive circuit 10, and the current signal output end of the first isolated drive circuit 10 connects the current signal input of three-phase inverter 6,
The braking force signal output part of braking force pedal 15 connects the braking force signal input part of processor 14,
The power signal output of power pedal 16 connects the power signal input of processor 14.
Embodiment two: below in conjunction with Fig. 1, present embodiment is described, present embodiment is described further execution mode one, and processor 14 adopts TMS320F2812 to realize.
Embodiment three: present embodiment is described below in conjunction with Fig. 6, present embodiment is described further execution mode one, the treatment circuit that processor 14 receives the power signal of power pedal 16 comprises comparator ADC7, three resistance R 23, R24, R26 and slide rheostat R27, the negative input end while contact resistance R24 of comparator ADC7 and an end of resistance R 26, stiff end one end of the other end of resistance R 24 and slide rheostat R27 meets GND simultaneously, the stiff end other end of the other end of resistance R 26 and slide rheostat R27 connects 3.3V voltage simultaneously, the sliding end of slide rheostat R27 connects the positive input terminal of comparator ADC7, the end of the output contact resistance R23 of comparator ADC7, the other end of resistance R 23 is connected 3.3V voltage with the voltage input end of comparator ADC7 simultaneously, the earth terminal of comparator ADC7 connects GND.
In present embodiment, power pedal 16 connects slide rheostat R27, when power pedal 16 is operated, the scribing of slide rheostat R27 is along with move together the position of pedal, when pedal is guessed certain position, and when the positive input terminal voltage of comparator ADC7 is greater than negative input end voltage, comparator ADC7 exports positive voltage, and signal outputs in processor 14.
Embodiment four: present embodiment is described below in conjunction with Fig. 7, present embodiment is described further execution mode one, the treatment circuit that processor 14 receives the braking force signal of braking force pedal 15 comprises comparator ADC6, three resistance R 20, R21, R22 and slide rheostat R25, the negative input end while contact resistance R20 of comparator ADC6 and an end of resistance R 21, stiff end one end of the other end of resistance R 20 and slide rheostat R25 meets GND simultaneously, the stiff end other end of the other end of resistance R 21 and slide rheostat R25 connects 3.3V voltage simultaneously, the sliding end of slide rheostat R25 connects the positive input terminal of comparator ADC6, the end of the output contact resistance R22 of comparator ADC6, the other end of resistance R 22 is connected 3.3V voltage with the voltage input end of comparator ADC6 simultaneously, the earth terminal of comparator ADC6 connects GND.
In present embodiment, braking force pedal 15 connects slide rheostat R25.
Embodiment five: below in conjunction with Fig. 6 and Fig. 7, present embodiment is described, present embodiment is described further execution mode three and execution mode four, and comparator ADC6 and comparator ADC7 all adopt LM393 to realize.
Embodiment six: present embodiment is described below in conjunction with Fig. 4, present embodiment is described further execution mode one, signal processing circuit is comprised of operational amplifier U3B, and operational amplifier U3B sends in processor 14 after the Hall current signal is disposed.
Embodiment seven: present embodiment is described below in conjunction with Fig. 4, present embodiment is described further execution mode six, signal processing circuit also comprises low pass filter, described low pass filter is comprised of operational amplifier U3A, and described low pass filter carries out switching noise and disturbs high-frequency signal to be processed for the current signal of the output of the Hall current sensor by receiving.
Embodiment eight: below in conjunction with Fig. 4, present embodiment is described, present embodiment is described further execution mode seven, and described operational amplifier U3A adopts LF353 to realize.
Operation principle: the utility model mainly comprises power switch pipe isolated drive circuit, parameter acquisition treatment circuit, battery management circuit, super capacitance management circuit and Bidirectional up-down pressure DC/DC translation circuit.
Battery monitoring circuit and super capacitor supervisory circuit 12 send to the operating state of storage battery 1 and super capacitor 5 in TMS320F2812 processor 14 respectively, processor 14 is controlled current signal according to control strategy again, controls the operating state of two-way DC/DC converter 3.
TMS320F2812 processor 14 is according to the signal of braking force pedal 15 or power pedal 16, in conjunction with corresponding control strategy and current signal, control the operating state of two-way DC/DC converter 3 and three-phase inverter 6, make DC brushless motor 8 be operated in electric motor state or be operated in dynamic braking and the generator state.
TMS320F2812 processor 14 is revised the duty ratio of the PWM of three-phase inverter 6 according to the pedal signal and the current signal that receive by fuzzy control, thereby realizes the control to the electric motor car detent torque.
The course of work of the course of work of braking force pedal 15 and power pedal 16 is similar, what but braking force pedal 15 was used is the XINT1 interrupt signal that priority is higher, so, when braking force pedal 15 or power pedal 16 are operated, TMS320F2812 processor 14 is controlled three-phase inverters 6 makes DC brushless motor 8 be operated in dynamic braking and regenerative braking state simultaneously.
Claims (5)
1. the efficient feedback device of pure electric vehicle regenerating braking energy, it comprises storage battery (1), the first Hall current sensor (2), the second Hall current sensor (4), super capacitor (5), three-phase inverter (6), the 3rd Hall current sensor (7), DC brushless motor (8), hall sensor signal circuit (9), processor (14), braking force pedal (15) and power pedal (16)
It is characterized in that, it also comprises two-way DC/DC converter (3), super capacitor supervisory circuit (12), battery monitoring circuit (19), the first isolated drive circuit (10), the second isolated drive circuit (17), first signal treatment circuit (11), secondary signal treatment circuit (13) and the 3rd signal processing circuit (18)
The electrical signal of storage battery (1) connects the electric signal input end of battery monitoring circuit (19), and the electric weight pilot signal output of battery monitoring circuit (19) connects the electric weight pilot signal input of processor (14),
Be connected with the first Hall current sensor (2) between storage battery (1) and two-way DC/DC converter (3), the current signal output end of the first Hall current sensor (2) connects the current signal input of the 3rd signal processing circuit (18), the current signal output end of the 3rd signal processing circuit (18) connects the first current signal input of processor (14)
Be connected with the second Hall current sensor (4) between two-way DC/DC converter (3) and super capacitor (5), the current signal output end of the second Hall current sensor (4) connects the current signal input of secondary signal treatment circuit (13), the current signal output end of secondary signal treatment circuit (13) connects the second current signal input of processor (14)
The electrical signal of super capacitor (5) connects the electric signal input end of super capacitor supervisory circuit (12), and the electric capacity pilot signal output of super capacitor supervisory circuit (12) connects the electric capacity pilot signal input of processor (14),
Be connected with the 3rd Hall current sensor (7) between three-phase inverter (6) and DC brushless motor (8), the current signal output end of the 3rd Hall current sensor (7) connects the current signal input of first signal treatment circuit (11), the current signal output end of first signal treatment circuit (11) connects the 3rd current signal input of processor (14)
The signal output part of DC brushless motor (8) connects the signal input part of hall sensor signal circuit (9), and the position signalling output of hall sensor signal circuit (9) connects the position signalling input of processor (14),
The first current signal output end of processor (14) connects the current signal input of the second isolated drive circuit (17), and the current signal output end of the second isolated drive circuit (17) connects the current signal input of two-way DC/DC converter (3),
The second current signal output end of processor (14) connects the current signal input of the first isolated drive circuit (10), and the current signal output end of the first isolated drive circuit (10) connects the current signal input of three-phase inverter (6),
The braking force signal output part of braking force pedal (15) connects the braking force signal input part of processor (14),
The power signal output of power pedal (16) connects the power signal input of processor (14).
2. the efficient feedback device of pure electric vehicle regenerating braking energy according to claim 1, is characterized in that, processor (14) adopts TMS320F2812 to realize.
3. the efficient feedback device of pure electric vehicle regenerating braking energy according to claim 1, it is characterized in that, the treatment circuit that processor (14) receives the power signal of power pedal (16) comprises comparator ADC7, three resistance R 23, R24, R26 and slide rheostat R27, the negative input end while contact resistance R24 of comparator ADC7 and an end of resistance R 26, stiff end one end of the other end of resistance R 24 and slide rheostat R27 meets GND simultaneously, the stiff end other end of the other end of resistance R 26 and slide rheostat R27 connects 3.3V voltage simultaneously, the sliding end of slide rheostat R27 connects the positive input terminal of comparator ADC7, the end of the output contact resistance R23 of comparator ADC7, the other end of resistance R 23 is connected 3.3V voltage with the voltage input end of comparator ADC7 simultaneously, the earth terminal of comparator ADC7 connects GND.
4. the efficient feedback device of pure electric vehicle regenerating braking energy according to claim 1, it is characterized in that, the treatment circuit that processor (14) receives the braking force signal of braking force pedal (15) comprises comparator ADC6, three resistance R 20, R21, R22 and slide rheostat R25, the negative input end while contact resistance R20 of comparator ADC6 and an end of resistance R 21, stiff end one end of the other end of resistance R 20 and slide rheostat R25 meets GND simultaneously, the stiff end other end of the other end of resistance R 21 and slide rheostat R25 connects 3.3V voltage simultaneously, the sliding end of slide rheostat R25 connects the positive input terminal of comparator ADC6, the end of the output contact resistance R22 of comparator ADC6, the other end of resistance R 22 is connected 3.3V voltage with the voltage input end of comparator ADC6 simultaneously, the earth terminal of comparator ADC6 connects GND.
5. according to the efficient feedback device of the described pure electric vehicle regenerating braking energy of claim 3 or 4, it is characterized in that, comparator ADC6 and comparator ADC7 all adopt LM393 to realize.
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| CN2013204405775U CN203326730U (en) | 2013-07-23 | 2013-07-23 | Regenerative braking energy efficient feedback device of all-electric vehicle |
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| CN2013204405775U CN203326730U (en) | 2013-07-23 | 2013-07-23 | Regenerative braking energy efficient feedback device of all-electric vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160324A (en) * | 2016-07-11 | 2016-11-23 | 张小清 | Comprise electric bicycle electric power auxiliary supplementary device and the control method of electromotor |
| CN106347139A (en) * | 2016-11-10 | 2017-01-25 | 哈尔滨理工大学 | Composite power supply regeneration braking device applied to pure electric vehicles |
| CN109683047A (en) * | 2019-01-30 | 2019-04-26 | 哈尔滨理工大学 | Electric car multiple road conditions braking energy feedback simulating test device and test method |
| CN109866622A (en) * | 2019-03-26 | 2019-06-11 | 西安电子科技大学芜湖研究院 | A kind of efficient energy recovery system based on quick charging battery |
-
2013
- 2013-07-23 CN CN2013204405775U patent/CN203326730U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160324A (en) * | 2016-07-11 | 2016-11-23 | 张小清 | Comprise electric bicycle electric power auxiliary supplementary device and the control method of electromotor |
| CN106160324B (en) * | 2016-07-11 | 2019-09-10 | 杭州东方文化园旅业集团有限公司 | Electric bicycle electric power auxiliary supplementary device and control method comprising generator |
| CN106347139A (en) * | 2016-11-10 | 2017-01-25 | 哈尔滨理工大学 | Composite power supply regeneration braking device applied to pure electric vehicles |
| CN109683047A (en) * | 2019-01-30 | 2019-04-26 | 哈尔滨理工大学 | Electric car multiple road conditions braking energy feedback simulating test device and test method |
| CN109866622A (en) * | 2019-03-26 | 2019-06-11 | 西安电子科技大学芜湖研究院 | A kind of efficient energy recovery system based on quick charging battery |
| CN109866622B (en) * | 2019-03-26 | 2021-06-04 | 西安电子科技大学芜湖研究院 | High-efficiency energy recovery system based on quick-charging battery |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20150723 |
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| EXPY | Termination of patent right or utility model |