CN101166011A - Trolley motor control circuit - Google Patents
Trolley motor control circuit Download PDFInfo
- Publication number
- CN101166011A CN101166011A CNA2007100978283A CN200710097828A CN101166011A CN 101166011 A CN101166011 A CN 101166011A CN A2007100978283 A CNA2007100978283 A CN A2007100978283A CN 200710097828 A CN200710097828 A CN 200710097828A CN 101166011 A CN101166011 A CN 101166011A
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- resistance
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- relay
- control circuit
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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
- 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
- Y02T10/64—Electric machine technologies in electromobility
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Abstract
This invention discloses a motor control circuit of electromotor, in which, the connection way of a turning handle protection circuit is: pin 7 of U2 is connected with R6, R10, R20, R28, C9 and pin 5 of U2, pin6 of U2 is connected with one end of R24, the other end of which is connected with the turning handle, pin 1 of U2 is connected with the other end of R28, the other end of R6 is connected with the negative of D1, the positive of D1 is connected with a primary standard of 5V, the other end of R20 is connected with the positive pole of the motor and the other ends of C9 and R10 are connected with the negative of the supply separately, which has the protection functions of earth cut off of the handle or not turning to zero.
Description
Technical field
The present invention relates to the circuit for controlling motor field, especially relate to a kind of circuit for controlling motor that is used for electric motor car.
Background technology
The controller for electric vehicle of main flow adopts following connected mode mostly on the existing market, the anodal positive source that directly connects of motor, and the motor negative pole connects the D utmost point of MOSFET, and the S utmost point of MOSFET connects sampling resistor, and the other end of sampling resistor connects power cathode.The G utmost point of MOSFET is connected with control end.The motor two ends oppositely and connect a diode.There is following defective in sort circuit:
1, the operation meeting of meeting motor is out of hand after MOSFET punctures, and causes the driving phenomenon, jeopardizes electric motor car driver's the person and property safety.
2, all can be out of control when quickening handle negative pole broken string or positive pole and handle signal shorts, cause runaway accident.
3, owing to most of electric bicycle switches on the market all are directly disconnected storage battery power supplies, when connecting in a flash, because the charging meeting of electric capacity is burnt switch easily at switch contact generation spark in the circuit.
4, most of controller for electric vehicle unclamps brake lever again on the market after brake, and vehicle can move on, and is easy to generate accident.
Summary of the invention
The objective of the invention is to solve the security and stability problem of existing electric vehicle motor controller, particularly relate to and solve electric motor car and when handle non-return-to-zero and handle negative pole short-term, cause the personal safety problem.And a kind of simple structure that provides has the trolley motor control circuit of multiple safety protection function.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of trolley motor control circuit; comprise control circuit protection part and driving circuit section; described control circuit protection part includes handle protective circuit, brake and charge cutoff relay circuit and storage battery under-voltage protecting circuit; described driving circuit section includes booster circuit and relay drive circuit, and the connected mode of described handle protective circuit is as follows:
The in-phase input end of an operational amplifier (U2) (7 pin) is connected with 5 pin of the 6th resistance (R6), the tenth resistance (R10), the 20 resistance (R20), the 28 resistance (R28), the 9th electrochemical capacitor (C9) and operational amplifier (U2) respectively, 6 pin of operational amplifier (U2) are connected with an end of the 24 resistance (R24), and the other end of described the 24 resistance (R24) is connected with handle;
The output of operational amplifier (U2) (1 pin) is connected with the other end of described the 28 resistance (R28);
The other end of described the 6th resistance (R6) connects the negative pole of diode (D1), the positive pole of described diode (D1) is connected with 5 volts of benchmark, the other end of the 20 resistance (R20) is connected with the motor positive pole, and described the 9th electrochemical capacitor (C9) is connected with power cathode respectively with the other end of the tenth resistance (R10).
Safety protection function in order to realize to driving, technical scheme of the present invention also comprises: relay drive circuit also includes relay protection circuit, and the connected mode of described relay protection circuit is as follows:
One end of the 26 resistance (R26) connects an end of relay contact through switch, the other end of the 26 resistance (R26) connects the anode of the 9th diode (D9), the negative electrode of the 9th diode (D9) connects the other end of described relay contact and the positive pole of the 13 electrochemical capacitor (C13), the minus earth of described the 13 electrochemical capacitor (C13).
Compared with prior art, the invention has the beneficial effects as follows:
1, increased the coefficient of safety of electric motor car; even power tube is breakdown in the electric motor car driving process, can reduce travel speed as long as pinch brake, the phenomenon of driving can not appear; and after producing this protective effect, the handle of electric motor car can lose the effect of governing speed.So just having stopped electric motor car flies to bring the person and property loss to the driver when car.
2, at handle generation negative pole broken string or anodal during with fault that holding wire is connected, only need pinch brake and can protect, the car load when charging of electric motor car is simultaneously forbidden moving, and has strengthened fail safe.
3, owing to adopt relay protection circuit,, also stopped the accident that the charging meeting of electric capacity is burnt switch at switch contact generation spark in the circuit even connecting in a flash.
Description of drawings
Fig. 1 is a relay protection circuit of the present invention.
Fig. 2 is the protective circuit of handle of the present invention.
Fig. 3 is a current-limiting circuit of the present invention.
Fig. 4 is a booster circuit of the present invention.
Fig. 5 is an oscillating circuit of the present invention.
Fig. 6 is a schematic diagram of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing and embodiment:
Trolley motor control circuit of the present invention comprises control circuit protection part and driving circuit section, and control circuit protection part mainly includes handle protective circuit, brake and charge cutoff relay circuit and storage battery under-voltage protecting circuit three parts; Driving circuit section mainly includes booster circuit and relay drive circuit.
Referring to Fig. 1, the connected mode of handle protective circuit is as follows:
In-phase input end 7 pin of an operational amplifier U2 are connected with 5 pin of the 6th resistance R 6, the tenth resistance R the 10, the 20 resistance R the 20, the 28 resistance R 28, the 9th electrochemical capacitor C9 and operational amplifier U2 respectively, 6 pin of operational amplifier U2 are connected with an end of the 24 resistance R 24, and the other end of described the 24 resistance R 24 is connected with handle;
The other end of described the 6th resistance R 6 connects the negative pole of diode D1, the positive pole of described diode D1 is connected with 5 volts of benchmark, the other end of the 20 resistance R 20 is connected with the motor positive pole, and the other end of described the 9th electrochemical capacitor C9 and the tenth resistance R 10 is connected with power cathode respectively.
Referring to Fig. 2, described trolley motor control circuit is characterized in that, described relay drive circuit also includes relay protection circuit, and the connected mode of described relay protection circuit is as follows:
One end of the 26 resistance R 26 connects an end of relay contact through switch, the other end of the 26 resistance R 26 connects the anode of diode D9, the negative electrode of diode D9 connects the other end of described relay contact and the positive pole of the 13 electrochemical capacitor C13, the minus earth of the 13 electrochemical capacitor C13.
Referring to Fig. 3, Fig. 4 and Fig. 5:
The brake of trolley motor control circuit of the present invention is connected and composed by following with the charge cutoff relay circuit: 3 pin of U2 are connected with positive source through R2.12 pin of U2 are connected with power cathode.1 pin of U2 is connected with 2 pin.2 pin are connected with positive source through R22, and 2 pin are connected with relay drive circuit through R4 simultaneously.4 pin of U2 are connected with R27, C11, R29, an end of 30, the negative pole of D4.Be connected with output control circuit simultaneously.The other end of R29 is connected with the negative pole of brake.The other end of R30 is connected with the charging input end mouth.
The storage battery under-voltage protecting circuit is connected and composed by following: 14 pin of U2 are connected with D4, R33, and the other end of R33 is connected with positive source.9 pin of U2 are connected with 5 volts of benchmark, and 8 pin of U2 are connected with R31, R34 respectively, and the other end of R31 is connected with the input of relay, and the other end of R34 is connected with power cathode.
The booster circuit part is connected and composed by following: the 10 pin saw-tooth wave generating circuits of U4 are connected, and 11 pin of U4 are connected with R37, R38, and the other end of R37 is connected with 5 volts of benchmark, and the other end of R38 is connected with power cathode.13 pin of U4 are connected with the end of the base stage of Q8, Q10, R36, and the end of C12 is connected with the emitter of Q8, Q10.The other end of the positive pole of D6, the collector electrode of Q8, R36 is connected with 24 volts of power supplys, and the negative pole of Q3 is connected with C14 one end, exports the supply voltage VG of twice simultaneously.
Drive part is connected and composed by following: the voltage VG of booster circuit output provides driving voltage for the power tube drive circuit that R39, Q5, R35, R23, R19, D11, Q1, Q2, R21 form.The D utmost point of power tube is succeeded the output of electrical equipment, and the S utmost point connects the positive pole of motor.The motor negative pole connects sampling resistor.Fly-wheel diode is connected in parallel on motor and sampling resistor two ends.Q4 is used to drive relay.
The operation principle of trolley motor control circuit of the present invention is explained as follows:
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6.
This controller for electric vehicle circuit is powered by storage battery BATTERY, battery positive voltage is succeeded normally opened contact one end and power supply locking wire one end of electrical equipment J respectively, after switch S X closure, power supply passes through R26, D9 gives C10, the C3 charging, work as C10, when the C13 two ends are charged to 8 pin (referring to the bottom among Fig. 2) voltage that makes U2c greater than the 9 pin voltages of U2c, 14 pin of U2c are high potential with being, 2 pin of U2c (referring to the right part among Fig. 2) output high potential, relay (among Fig. 1) adhesive, A point (Fig. 1 left part) current potential is by high step-down, through C8, R14 (right part of Fig. 3) is after time-delay a period of time, 14 pin of U4c become low level, 1 pin that rotates handle U4B this moment has medical treatment pulsewidth PWM output, and process is by Q2, Q5, Q1, R23, R19, R39, R35, the drive circuit driven MOS FET that D11 forms.
If handle when powering up (referring to the bottom among Fig. 2) is a high level, then to the 6 pin voltages of U2 during greater than the 7 pin voltages of U2,1 pin of U2 is output as low level to handle voltage through R24, and relay disconnects, and plays handle broken string or the non return to zero protective effect of handle.All be 4 pin high level to Q7 and U2 when brake and charging, PWM and relay are turn-offed, controller quits work.Behind releasing of brake, handle makes zero, relay closes, PWM operate as normal.14 pin output low levels when the 8 pin voltages of U2 are lower than 9 pin voltages play the effect of under-voltage protection.When electric current was excessive in the motor, the signal that RS collects was given 8 pin of U4, when 8 pin signals during greater than 9 pin signals, turn-offed PWM output, played the effect of protection motor.
Aforementioned relay protection circuit and handle protective circuit are after playing a role, and by the MOSFEF switch, electric motor car just can have been worked normally then.
To sum up, trolley motor control circuit of the present invention can play effectively that handle non-return-to-zero and handle are negative to protect the protective effect of utmost point short-term, thereby has guaranteed electric motor car driver's safety of life and property; Also have the relay protection function effectively to protect the contact not burnt, prolonged the useful life of electric motor car.Certainly, technical scheme of the present invention and design principle being applied in the control system of close industry, and playing beneficial effect of the present invention, then is to have fallen into protection scope of the present invention.
Claims (2)
1. trolley motor control circuit; comprise control circuit protection part and driving circuit section; described control circuit protection part includes handle protective circuit, brake and charge cutoff relay circuit and storage battery under-voltage protecting circuit; described driving circuit section includes booster circuit and relay drive circuit; it is characterized in that the connected mode of described handle protective circuit is as follows:
The in-phase input end of an operational amplifier (U2) (7 pin) is connected with 5 pin of the 6th resistance (R6), the tenth resistance (R10), the 20 resistance (R20), the 28 resistance (R28), the 9th electrochemical capacitor (C9) and operational amplifier (U2) respectively, 6 pin of operational amplifier (U2) are connected with an end of the 24 resistance (R24), and the other end of described the 24 resistance (R24) is connected with handle;
The output of operational amplifier (U2) (1 pin) is connected with the other end of described the 28 resistance (R28);
The other end of described the 6th resistance (R6) connects the negative pole of diode (D1), the positive pole of described diode (D1) is connected with 5 volts of benchmark, the other end of the 20 resistance (R20) is connected with the motor positive pole, and described the 9th electrochemical capacitor (C9) is connected with power cathode respectively with the other end of the tenth resistance (R10).
2. trolley motor control circuit as claimed in claim 1 is characterized in that described relay drive circuit also includes relay protection circuit, and the connected mode of described relay protection circuit is as follows:
One end of the 26 resistance (R26) connects an end of relay contact through switch, the other end of the 26 resistance (R26) connects the anode of diode (D9), the negative electrode of diode (D9) connects the other end of described relay contact and the positive pole of the 13 electrochemical capacitor (C13), the minus earth of the 13 electrochemical capacitor (C13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100978283A CN101166011A (en) | 2006-10-19 | 2007-04-19 | Trolley motor control circuit |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610016165 | 2006-10-19 | ||
| CN200610016165.3 | 2006-10-19 | ||
| CNA2007100978283A CN101166011A (en) | 2006-10-19 | 2007-04-19 | Trolley motor control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101166011A true CN101166011A (en) | 2008-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100978283A Pending CN101166011A (en) | 2006-10-19 | 2007-04-19 | Trolley motor control circuit |
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| Country | Link |
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| CN (1) | CN101166011A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791969A (en) * | 2010-02-11 | 2010-08-04 | 天津市松正电动科技有限公司 | Electric control car controller |
| CN103208780A (en) * | 2013-04-12 | 2013-07-17 | 苏州欧泰克电子科技有限公司 | Direct current motor control circuit with heat protection function |
| CN103318109A (en) * | 2013-07-05 | 2013-09-25 | 无锡商业职业技术学院 | Controller for electric bicycles and motorcycles |
| CN104267629A (en) * | 2014-09-29 | 2015-01-07 | 长城汽车股份有限公司 | Automobile inductive load control circuit |
-
2007
- 2007-04-19 CN CNA2007100978283A patent/CN101166011A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791969A (en) * | 2010-02-11 | 2010-08-04 | 天津市松正电动科技有限公司 | Electric control car controller |
| CN101791969B (en) * | 2010-02-11 | 2012-07-18 | 天津市松正电动汽车技术股份有限公司 | Electric control car controller |
| CN103208780A (en) * | 2013-04-12 | 2013-07-17 | 苏州欧泰克电子科技有限公司 | Direct current motor control circuit with heat protection function |
| CN103208780B (en) * | 2013-04-12 | 2016-01-27 | 苏州欧泰克电子科技有限公司 | A kind of DC motor control circuit with heat protection function |
| CN103318109A (en) * | 2013-07-05 | 2013-09-25 | 无锡商业职业技术学院 | Controller for electric bicycles and motorcycles |
| CN104267629A (en) * | 2014-09-29 | 2015-01-07 | 长城汽车股份有限公司 | Automobile inductive load control circuit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080423 |