CN201075720Y - Control circuit of controller for electric vehicle - Google Patents
Control circuit of controller for electric vehicle Download PDFInfo
- Publication number
- CN201075720Y CN201075720Y CNU2007200986270U CN200720098627U CN201075720Y CN 201075720 Y CN201075720 Y CN 201075720Y CN U2007200986270 U CNU2007200986270 U CN U2007200986270U CN 200720098627 U CN200720098627 U CN 200720098627U CN 201075720 Y CN201075720 Y CN 201075720Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a control circuit of an electric car controller, which includes a battery pack, a microprocessor, an electric motor, a power field effect tube, a drive circuit, an operational power supply circuit, a current-limiting circuit, a relay blocking protective circuit and a standby power-saving circuit; the current-limiting circuit is connected between the electric motor and the microprocessor; the battery pack, the relay blocking protection circuit, the electric motor and the field effect tube are connected sequentially. the operational power supply circuit is connected with the battery pack and outputs a stable plus 5V DC voltage, the drive circuit is connected with the microprocessor and the field effect tube respectively and the microprocessor controls the conduction of the power field effect tube, thus controlling the conduction of the whole circuit. The utility model can have good protection on the relay, have high safety performance and can avoid the over-run phenomenon; furthermore, the standby power-saving circuit in the circuit can prolong the service life of the battery.
Description
Technical field
The utility model relates to a kind of controller for electric vehicle control circuit, relates in particular to a kind of scooter controller circuitry.
Background technology
Along with rapid development of social economy, people are also more and more higher to the functional requirement of electric motor car, scooter, and the desire that people ride instead of walk has been satisfied in the appearance of scooter.Existing scooter controller does not adopt microprocessor to control, and the subject matter of its existence is as follows:
1. use hand push switch on handlebar by the driver, realization is to the control of scooter, it makes car start from inactive state, scooter will overcome great stiction, and consume great quiescent current, such scooter needs jumbo storage battery of adapted and powerful motor to work, and also shorten the useful life of storage battery, and the manufacturing cost of product is very high.
2. because existing scooter controller does not have the load condition actual effect to detect and corresponding protection circuit; so sort controller can not be controlled rotating speed of motor well; if the user does not stand in and just pushes master cock on the scooter, because the quick startup of underloading of scooter very easily causes the driving phenomenon.
3. main flow scooter controller in the market, power consumption and standby current are all very big, and standby current reaches more than 100 milliampere, and this just wastes energy virtually, shortens the useful life of battery.
4. can not get rid of fast and effectively fault, thereby operation and maintenance has all been increased workload, thereby cause maintenance cost very high.
The utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of standby current little, safe controller for electric vehicle control circuit.
The utility model solves its technical problem and takes following scheme to realize:
The utility model comprises: a battery pack that is used for providing electric energy to entire controller, a microprocessor, a motor, a power field effect pipe, a drive circuit that is used for the work of driving power field effect transistor, a working power circuit that is used for providing stable operating voltage to microprocessor, a current-limiting circuit, current-limiting circuit is connected between motor and the microprocessor, power supply, motor, field effect transistor connects in turn, working power circuit is connected with power supply, and export a stable+5V direct voltage, operating voltage as the normal operation of microprocessor, drive circuit links to each other with field effect transistor with microprocessor respectively, come the conducting of controlling and driving power field effect pipe by microprocessor, thereby control the conducting of whole loop.
Also comprise a relay adhesion protective circuit in its technical scheme; its connected mode is: I/O mouth 1 pin of microprocessor links to each other with an end of resistance R 2; the other end of resistance R 2 links to each other with an end of resistance R 23; the other end of resistance R 23 extremely links to each other with an end of resistance R 9 and the b of triode T5; the e utmost point of triode T5 and the other end of resistance R 9 be ground connection respectively; the c utmost point of triode T5 is succeeded the coil of electrical equipment; the other end of coil links to each other with the positive pole of battery pack; the normally opened contact of relay is connected between battery pack and the motor, and diode D7 is in parallel with relay coil.
Its technical scheme can also comprise a standby current power-saving circuit, its connected mode is: an end of resistance R 37 and the anode of diode D8, microprocessor I/O mouth 18 pin link to each other, the other end of resistance R 37 extremely links to each other with the b of triode T6, the e utmost point ground connection of triode T6, the negative electrode connecting resistance R32 of diode D8, one end of resistance R 35, one end of the other end of resistance R 35 and resistance R 36, the b of triode T7 is extremely continuous, the other end of resistance R 36, the e utmost point of triode T7 is ground connection respectively, the negative pole of another termination capacitor C 18 of resistance R 32, the positive pole of capacitor C 18, the e utmost point of triode T9, one end of resistance R 33 is succeeded the electric apparatus coil end respectively, the other end of resistance R 33, the end of the b utmost point connecting resistance R34 of triode T9, the c utmost point of another termination triode T7 of resistance R 34, the c utmost point of triode T9 connects an end of the resistance R 21 in the working power circuit.
The utility model has the embedded controller of A/D translation function as main control chip by use; setting to parameters in the circuit; can realize accurately detecting the electric current of controller output on motor; thereby realize restriction to current of electric; realization is to the protection of relay adhesion, enters the useful life that can prolong battery behind the battery saving mode.
The utility model compared with prior art has significant advantage and beneficial effect, is embodied in the following aspects:
1. be provided with various failure detection and protective circuit owing to the utility model, thereby avoided driving phenomenon, avoided personal injury, realized effective control, and protected better motor because of machinery or electric fault generation.；
2. in the utility model, after handle made zero, relay disconnected after 2 minutes, and entire circuit is in battery saving mode, and standby current has prolonged the useful life of battery less than 1 milliampere.
3. can carry out autodiagnosis to electric fault, so just solve the slow-footed problem of fixing a breakdown at present well.
4. failure rate is low, and debugging is revised comparatively speaking than being easier to.
Description of drawings
Fig. 1 is the utility model theory diagram;
Fig. 2 is the utility model circuit theory diagrams;
Embodiment
Come technical scheme is described in detail below in conjunction with physical circuit given in the accompanying drawing.
Shown in Fig. 1,2
The utility model comprises: battery pack, relay adhesion protective circuit, a motor A and a power field effect pipe VF1 also are linked in sequence successively; an embedded controller MCU controls a drive circuit and driving power field effect transistor VF1; a working power circuit connects between battery and the embedded controller MCU, and an energy saving standby circuit is included in the working power circuit.A current-limiting circuit is connected between motor and the MCU, is used to limit the electric current that flows through motor, thus the protection motor.
The scooter controller provides work energy for motor A and each integrated chip by battery pack, the rotating speed of motor A is by the field effect transistor VF1 control that is connected between battery pack and the motor A, intermittent connection of field effect transistor VF1 and shutoff, the rotating speed of motor A is then recently controlled by the time that field effect transistor Q8 turns on and off, the time of connecting is long more, the rotating speed of motor A is fast more, and vice versa.
Embedded controller MCU is that U1 has multi-channel a/d converter, pulse width modulation output channel PWM and definable I/O channel.
Working power circuit is made of a pressurizer U3, resistance R 21, two electrochemical capacitor C11 and C12, the triode c utmost point in the one termination energy saving standby circuit of resistance R 21, the other end connects 3 pin of pressurizer U3, the positive pole of capacitor C 11 respectively, 2 pin of the negative pole of the negative pole of capacitor C 11, capacitor C 12, pressurizer U3 are ground connection respectively, and 1 pin of the positive pole of capacitor C 12 and pressurizer U3 is promptly exported the working power of the positive 5V of termination.
Relay adhesion protective circuit; its connected mode is: I/O mouth 1 pin of microprocessor links to each other with an end of resistance R 2; the other end of resistance R 2 links to each other with an end of resistance R 23; the other end of resistance R 23 extremely links to each other with an end of resistance R 9 and the b of triode T5; the e utmost point of triode T5 and the other end of resistance R 9 be ground connection respectively; the c utmost point of triode T5 is succeeded the coil of electrical equipment; the other end of coil links to each other with the positive pole of battery pack; the normally opened contact of relay is connected between battery pack and the motor, and diode D7 is in parallel with relay coil.
The standby current power-saving circuit, its connected mode is: an end of resistance R 37 and the anode of diode D8, microprocessor I/O mouth 18 pin link to each other, the other end of resistance R 37 extremely links to each other with the b of triode T6, the e utmost point ground connection of triode T6, the negative electrode connecting resistance R32 of diode D8, one end of resistance R 35, one end of the other end of resistance R 35 and resistance R 36, the b of triode T7 is extremely continuous, the other end of resistance R 36, the e utmost point of triode T7 is ground connection respectively, the negative pole of another termination capacitor C 18 of resistance R 32, the positive pole of capacitor C 18, the e utmost point of triode T9, one end of resistance R 33 is succeeded the electric apparatus coil end respectively, the other end of resistance R 33, the end of the b utmost point connecting resistance R34 of triode T9, the c utmost point of another termination triode T7 of resistance R 34, the c utmost point of triode T9 connects an end of the resistance R 21 in the working power circuit.
The connected mode of current-limiting circuit is: common port one end after capacitor C 8 and resistance R 22 parallel connections is the end of connecting resistance R5 respectively, 3 pin of amplifier U2A, the other end ground connection of common port, another termination+5V voltage of R5, capacitor C 9 is connected across 4 pin and 8 pin of amplifier U2A, 2 pin of amplifier U2A are the end of connecting resistance R17 respectively, an end of capacitor C 6; 4 pin of the other end of capacitor C 6, amplifier U2A are ground connection respectively, and 8 pin of amplifier U2A connect+5V, and the negative pole of another termination motor of resistance R 17,1 pin of amplifier U2A connect 6 pin that embedded controller MCU is U1.
The principle of scooter controller: if 1. the handle switch is not closed, relay is in off-state, enter battery saving mode, under the power down mode, the standby current of controller is less than 7 milliamperes, after the handle closure, elder generation's closing relay, PWM progressively is increased to maximum from minimum value behind the time-delay 100ms, can avoid relay to switch under big electric current that causing gets an electric shock burns like this, PWM from minimum value progressively be increased to maximum can avoid starting impact excessive.2. if disconnect behind the handle switch closure, after delaying time about 2 minutes, relay disconnects, and then identical with 1; If closed handle switch in 2 minutes then can operate as normal, relay is failure to actuate, and can reduce the switching frequency of relay like this, prolongs the useful life of relay.3. if behind the handle switch closure and after disconnecting 2 minutes, still do not work through 10 minutes again, then controller can disconnect power supply automatically, enters off-mode, simultaneously the mains switch indicator light is turn-offed, and standby current has prolonged the useful life of battery less than 1 milliampere.
Utilize technical scheme described in the utility model, or those skilled in the art designing the similar techniques scheme under the inspiration of technical solutions of the utility model, and reach above-mentioned technique effect, all is to fall into protection range of the present utility model.
Claims (2)
1. controller for electric vehicle control circuit; comprise: a battery pack that is used for providing electric energy to entire controller; a microprocessor; a motor; a power field effect pipe; a drive circuit that is used to drive described power field effect pipe work; a working power circuit that is used for providing stable operating voltage to described microprocessor; a current-limiting circuit; described current-limiting circuit is connected between motor and the microprocessor; described battery pack; motor; field effect transistor connects in turn; described working power circuit is connected with battery pack; and export one as the normal stable operating voltage that moves of described microprocessor; described drive circuit links to each other with described field effect transistor with microprocessor respectively; come the conducting of controlling and driving power field effect pipe by microprocessor; thereby control the conducting of whole loop; it is characterized in that: described controller for electric vehicle control circuit also comprises a relay adhesion protective circuit; link to each other with described microprocessor; its connected mode is that I/O mouth 1 pin of described microprocessor links to each other with an end of resistance (R2); the other end of resistance (R2) links to each other resistance with an end of resistance (R23)
(R23) the other end extremely links to each other with an end of resistance (R9) and the b of triode (T5), the other end of the e utmost point of triode (T5) and resistance (R9) is ground connection respectively, the c utmost point of triode (T5) is succeeded the coil of electrical equipment, the other end of coil links to each other with the positive pole of battery pack, the normally opened contact of relay is connected between battery pack and the motor, and diode (D7) is in parallel with relay coil.
2. a kind of controller for electric vehicle control circuit as claimed in claim 1, it is characterized in that: described working power circuit also comprises an energy saving standby circuit, link to each other with described microprocessor, its connected mode is: the anode of an end of resistance (R37) and diode (D8), microprocessor I/O mouth 18 pin link to each other, the other end of resistance (R37) extremely links to each other with the b of triode (T6), the e utmost point ground connection of triode (T6), the negative electrode connecting resistance (R32) of diode (D8), one end of resistance (R35), one end of the other end of resistance (R35) and resistance (R36), the b of triode (T7) is extremely continuous, the other end of resistance (R36), the e utmost point of triode (T7) is ground connection respectively, the negative pole of another termination capacitor (C18) of resistance (R32), the positive pole of electric capacity (C18), the e utmost point of triode (T9), one end of resistance (R33) is succeeded the electric apparatus coil end respectively, the other end of resistance (R33), one end of the b utmost point connecting resistance (R34) of triode (T9), the c utmost point of another termination triode (T7) of resistance (R34), the c utmost point of triode (T9) connect an end of the resistance (R21) in the described working power circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200986270U CN201075720Y (en) | 2007-09-22 | 2007-09-22 | Control circuit of controller for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200986270U CN201075720Y (en) | 2007-09-22 | 2007-09-22 | Control circuit of controller for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075720Y true CN201075720Y (en) | 2008-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200986270U Expired - Fee Related CN201075720Y (en) | 2007-09-22 | 2007-09-22 | Control circuit of controller for electric vehicle |
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| Country | Link |
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| CN (1) | CN201075720Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163518A (en) * | 2011-04-12 | 2011-08-24 | 上海沪工汽车电器有限公司 | Control circuit of relay coil of electric vehicle |
| CN101741237B (en) * | 2008-11-24 | 2013-03-20 | 通用汽车环球科技运作公司 | Power supply topology for a multi-processor controller in an electric traction system |
| CN104648592A (en) * | 2015-02-04 | 2015-05-27 | 浙江弗瑞登运动用品有限公司 | STM32 processor-based electric skateboard control system |
| CN106712209A (en) * | 2017-02-14 | 2017-05-24 | 浙江万马新能源有限公司 | Multi-protection device and protection method for safe charging of direct current charging equipment |
| CN107887883A (en) * | 2012-09-13 | 2018-04-06 | 松下知识产权经营株式会社 | Relay adhesion detection means and vehicle |
-
2007
- 2007-09-22 CN CNU2007200986270U patent/CN201075720Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741237B (en) * | 2008-11-24 | 2013-03-20 | 通用汽车环球科技运作公司 | Power supply topology for a multi-processor controller in an electric traction system |
| CN102163518A (en) * | 2011-04-12 | 2011-08-24 | 上海沪工汽车电器有限公司 | Control circuit of relay coil of electric vehicle |
| CN102163518B (en) * | 2011-04-12 | 2013-11-06 | 上海沪工汽车电器有限公司 | Control circuit of relay coil of electric vehicle |
| CN107887883A (en) * | 2012-09-13 | 2018-04-06 | 松下知识产权经营株式会社 | Relay adhesion detection means and vehicle |
| CN104648592A (en) * | 2015-02-04 | 2015-05-27 | 浙江弗瑞登运动用品有限公司 | STM32 processor-based electric skateboard control system |
| CN106712209A (en) * | 2017-02-14 | 2017-05-24 | 浙江万马新能源有限公司 | Multi-protection device and protection method for safe charging of direct current charging equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080618 Termination date: 20100922 |