CN2759832Y - Device for controlling electric vehicle - Google Patents
Device for controlling electric vehicle Download PDFInfo
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- CN2759832Y CN2759832Y CNU2004201152022U CN200420115202U CN2759832Y CN 2759832 Y CN2759832 Y CN 2759832Y CN U2004201152022 U CNU2004201152022 U CN U2004201152022U CN 200420115202 U CN200420115202 U CN 200420115202U CN 2759832 Y CN2759832 Y CN 2759832Y
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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
- Y02T10/72—Electric energy management in electromobility
Abstract
The utility model relates to a controller, particularly a controller for electric vehicles. The utility model can modulate DC power supply into current pulses through the joint work of a pulse-width modulation chip, a voltage boosting and driving circuit and a power field-effect transistor. The rotation speed of a motor is controlled by the control of the width of pulses through a Hall sensor. As a driving failure detection circuit and a sensor failure detection circuit are arranged for carrying out automatic detection and protection for flying vehicles out of control, flying vehicle phenomena which are caused by mechanical and electric faults are avoided. Thereby, the utility model effectively controls the motor and simultaneously protects the motor. In addition, a power supply voltage detecting circuit is also arranged. When power supply voltage reaches the vicinity of discharge lower limit, the output of the controller for electric vehicles is gradually closed and the overdischarge of the power supply is avoided.
Description
Technical field
The utility model relates to a kind of control setup, is a kind of controller for electric vehicle specifically.
Background technology
Existing controller for electric vehicle; when various fault takes place in control circuit; for example following situation: the pulse width modulation chip damages, the power field effect tube drive circuit damages, power field effect pipe is breakdown or to cause the sensing circuit fault to cause motor to continue out of control because of machinery or fault; this moment, brake and restriction signal will not respond; power line voltage directly puts on the electrical motor two ends; make the electrical motor high-speed operation; battery-driven car is in runaway condition; do not turn-off the protection of motor power; will inevitably cause danger, personal safety is threatened.
Because of existing controller for electric vehicle, still there is following problem in control circuit again, therefore can not realize excellent protection to battery-driven car:
1, the electric current of restriction electric power outputting current rather than restriction motor when motor load transships, thereby motor is not protected well.
When 2, the lower limit that discharges in permission when power line voltage fluctuateed up and down, the correspondingly frequent switch of the output of controller impacted to motor and gearing.
3, when the damage of pwm pulse width modulated chip; or the power field effect tube drive circuit damages; or power field effect pipe breakdown after; power line voltage directly puts on the motor two ends; the motor high-speed operation; brake and restriction signal will not respond, when causing motor driving out of control, and the protection of not turn-offing motor power.
4, can not reset when mechanical breakdown makes Hall element, perhaps Hall element lost efficacy, perhaps ground wire open circuit between Hall element and the controller, and when causing motor driving out of control, the protection of not turn-offing motor power.
5, when the peripheral wiring misconnection of the Hall element of controller 24V, do not protect the measure of the pwm pulse width modulated chip of controller.
The utility model content
The utility model provides a kind of safe and reliable controller for electric vehicle with automatic runaway function in order to overcome above-mentioned shortcoming.
The technical scheme in the invention for solving the technical problem is: comprise power supply; control circuit and electrical motor; described control circuit comprises a pulse-width modulation circuit that is used to regulate the electric moter voltage pulse width; the booster driving circuit that driving voltage is provided to power field effect pipe; a power field effect pipe; a Hall element circuit that is used to respond to and receive extraneous control; one is used to detect the whether Hall element failure detection circuit of normal operation of Hall element circuit; one is used for that the detection power field effect transistor is damaged or the booster driving circuit driving failure detection circuit of normal operation whether; one is used to detect the flow through motor current detecting circuit of working current and a protective relay that receives each road detection signal and protect the motor normal operation of motor; connect pulse-width modulation circuit successively between described power supply and the described motor; booster driving circuit; power field effect pipe; protective relay; and direct connection has a branch road between power supply and the power field effect pipe; described motor current detecting circuit is connected between pulse-width modulation circuit and the motor; described driving failure detection circuit is connected between booster driving circuit and the protective relay, also is connected with Hall element circuit and hall sensing failure detection circuit between described pulse-width modulation circuit and the protective relay in turn.
Described control circuit also can comprise a line under-voltage testing circuit, be connected between described power supply and the pulse-width modulation circuit, be used to detect power line voltage whether in the normal condition scope, described voltage detection circuit is by a transistor, a stabilivolt, three resistance and a diode constitute, one end of described first resistance connects power supply, the other end connects the negative pole of described stabilivolt, the other end of stabilivolt connects described transistorized base stage and another resistance again, one end of all the other resistance connects power supply, the other end connects the positive pole of described transistorized collecting electrode and diode, the other end common ground of described transistorized emitter and another resistance, the negative pole of diode connects the dead band control end DTC of pulse width modulating chip.
Described hall sensing circuit can be by a Hall element; light-emitting diode and peripheral cell constitute; one end ground connection of described Hall element; one end is used to avoid the protection diode of misconnection 24V to link to each other with the 5V2 working power end through one; other end sending and receiving optical diode is connected between two resistance; described two resistance insert the inverting input 2IN-of the op amp in the pulse width modulating chip; the 2IN-of the described pulse-width modulation circuit of one termination of a feedback resistance in addition; the FEEDBACK end of the described pulse width modulating chip of another termination; insert the in-phase input end 2IN+ of pulse width modulating chip in-to-in op amp after two divider resistance dividing potential drops; VREF (Voltage Reference) is provided; also has a resistance that is used to provide feedback voltage; one relay termination is often opened an end of electric shock, the 2IN+ end of another termination pulse width modulating chip.
Described pulse-width modulation circuit can be made of pulse-width controlled chip and peripheral cell thereof, the output CTRL pin ground connection of described pulse width modulating chip, Q1 and the interior Q2 parallel way work of sheet in the sheet have been selected, ground connection after Q1E links to each other with Q2E, the Q1C of described pulse-width controlled chip, Q2C end are connected the back by a resistance access booster driving circuit.
Described booster driving circuit can be by four resistance of three transistors, a chemical capacitor and a diode and a protective tube and an electric door lock constitute, one of them transistor is NPN, all the other are PNP, the emitter of described NPN transistor with after the transistorized emitter of one of them PNP links to each other through the grid of a resistance access power field effect transistor, described two transistorized base stages link to each other with all the other transistorized collecting electrodes of transistor and a resistance after linking to each other, the other end of described resistance links to each other with the source electrode of transistorized collecting electrode of first PNP and power field effect pipe, second transistorized base stage of PNP links to each other with other two resistance respectively, one of them resistance links to each other with second transistorized emitter of PNP, the positive pole of described chemical capacitor successively with second transistorized emitter of PNP, the collecting electrode of NPN transistor links to each other after oppositely connect described diode, insert the drain electrode of N ditch power field effect pipe behind described electric door lock and the protective tube.
Coil one end of described protective relay can meet working power VCC; the other end links to each other with a transistorized collecting electrode; described transistorized grounded emitter; base stage links to each other with an end of two resistance; the other end of two resistance links to each other with an end that connects working power of described protective relay; the output of described Hall element failure detection circuit and driving failure detection circuit is connected between two resistance; a flywheel diode is connected in parallel on the two ends of described relay coil; an end of often opening electric shock of described protective relay links to each other with the source electrode of described field effect transistor, and the other end directly links to each other with motor.
Described hall sensing failure detection circuit can be made of a comparator and peripheral circuit, and its output is connected between two resistance that link to each other with described protective relay.
Described driving failure detection circuit can be made of a comparator and peripheral circuit, and its output is connected between two resistance that link to each other with described protective relay.
Described motor current detecting circuit can be by a sampling resistor, a flywheel diode, two divider resistances, a feedback resistance is formed, one end ground connection of described sampling resistor, the in-phase input end 1IN+ of another termination motor and pulse width modulating chip internal arithmetic amplifier, the reference voltage terminal of one termination pulse width modulating chip of a described divider resistance, the other end after the dividing potential drop is connected with another divider resistance, and the inverting input 1IN-of access pulse width modulating chip in-to-in op amp, reference point as described sampling resistor up-sampling voltage, the 1IN-end of one termination pulse width modulating chip of described feedback resistance, its FEEDBACK end of another termination.
Described field effect transistor can be depletion mode N channel field-effect pipe.
The utility model is by the co-operation of pulse width modulating chip, booster driving circuit, power field effect pipe; direct supply can be modulated into current impulse; and pass through Hall element; the width of control wave comes the rotating speed at control motor; drive failure detection circuit, sensor failure testing circuit owing to be provided with; driving out of control is detected automatically and protects; avoided driving phenomenon because of machinery and electrical accident generation; thereby realize more effective control, protected motor simultaneously well electrical motor.When in addition, also being provided with voltage detection circuit and realizing that power line voltage arrives near the discharge lower limit gradually the output of closing controller avoid the power supply overdischarge.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model
Fig. 2 is schematic circuit diagram of the present utility model
The specific embodiment
As shown in Figure 1; the utility model is made up of power supply, line under-voltage testing circuit, motor current detecting circuit, pulse width modulation circuit, booster driving circuit, Hall element circuit, Hall element failure detection circuit, driving failure detection circuit, power field effect pipe, protective relay and motor; power supply in the present embodiment is a battery pack, and described field effect transistor is a depletion mode N channel field-effect pipe.
In the utility model, what detect and limit is the electric current that flows through motor.Must be connected on power field effect pipe between power supply and the motor.And come the driving power field effect transistor by described booster circuit; utilize a comparator circuit to detect booster circuit again; detecting Hall element machinery with comparator circuit does not reset; Hall element lost efficacy; the mistake output that Hall element ground wire open circuit causes; and close the power supply of power machine by relay, carry out the driving protection.Control the dead band output of pulse width modulating chip in addition by the power supply voltage gradient, thereby controller cuts out gradually when having controlled because of line under-voltage, avoids the impact injury that the frequent switch of motor is caused.When the peripheral wiring misconnection of the Hall element of controller 24V, by the effect of protection diode D6, protected the core parts pulse width modulating chip of controller, avoid overvoltage to damage.
As shown in Figure 2, described line under-voltage testing circuit is made of transistor Q6, stabilivolt Z1, resistance R 1, R2, R3 and diode D2.Resistance R 1 one ends connect power supply, and the other end connects the negative pole of stabilivolt Z1, and the positive pole of described stabilivolt Z1 connects base stage and the resistance R 2 of transistor Q6 again, the other end power connection negative pole of described resistance R 2.One end of described resistance R 3 connects power supply, the other end connects the collecting electrode of transistor Q6 and the positive pole of diode D2, the grounded emitter of described transistor Q6, the negative pole of described diode D2 connects the dead band control end DTC of pulse width modulating chip, when power line voltage is enough high, stabilivolt Z1 conducting, also conducting of transistor Q6, this moment, diode D2 was anti-inclined to one side, and undervoltage detection circuit can not impact the work of pulse width modulating chip.When the continuous step-down of power line voltage, transistor Q6 is ended by saturated transferring to gradually, and diode D2 is positively biased gradually, and the DTC voltage of pulse width modulating chip is raise gradually, from the characteristic of pulse width modulating chip as can be known, DTC pin voltage is 0 o'clock, and pulse width modulating chip can be exported the impulse singla of maximum width, when DTC pin voltage raises gradually, the pulse signal width that pulse width modulating chip can be exported diminishes gradually, close fully until controller, thereby the rotating speed of electrical motor is reduced gradually, until stopping.The effect of described line under-voltage testing circuit is exactly automatically to detect power source voltage, when magnitude of voltage when allowing the minimum value of discharge, close PWM (pulse width modulation) output of pulse modulated circuit gradually, protected power supply.When power line voltage was higher than the minimum value that allows discharge, this circuit was inoperative.
Described pulse-width modulation circuit is connected and composed by pulse width modulation chip and periphery thereof.The model of described pulse width modulating chip is TL494, and its output CTRL pin ground connection has been selected Q1 and the interior Q2 parallel way work of sheet in the described pulse width modulating chip.The Q1E end is held the back ground connection that links to each other with Q2E, inserts booster driving circuits by resistance R 15 after Q1C end, Q2C end link to each other.Pulse width modulation circuit goes the power controlling field effect transistor through booster driving circuit, under the situation that protective relay is connected, has controlled the driving power of motor, thereby has controlled rotating speed of motor and power.
Pulse width modulation circuit is controlled simultaneously by voltage detecting circuit, motor current detecting circuit, Hall element circuit three.
Described booster driving circuit, by three transistor Q2, Q3, Q4, four resistance R 15, R16, R17, R18, a chemical capacitor C4 and a diode D1, and a protective tube and an electric door lock constitute.Described Q3, Q4 are respectively NPN and PNP, after linking to each other, the emitter of described transistor Q3, Q4 inserts the grid of N ditch power field effect pipe Q1 through R18, the base stage of described transistor Q3, Q4 links to each other with collecting electrode and the R17 of transistor Q2 after linking to each other, the other end of R17 links to each other with the collecting electrode of transistor Q4, the source electrode of N ditch power field effect pipe Q1, and the base stage of Q2 links to each other with resistance R 15, R16 respectively.The positive pole of described chemical capacitor C4 links to each other with the collecting electrode of the emitter of the other end of resistance R 16, Q2, Q3 successively after oppositely be connected the drain electrode that inserts N ditch power field effect pipe Q1 behind diode D1, described electric door lock and the protective tube.Because the pulse width modulating chip TL494 in the pulse width modulation circuit has a dead band characteristic when output pulse width, full conducting situation can not appear, utilize this characteristic, link to each other by diode D1 and electrolysis C4 are anodal at the positive source place, when TL494 is in the output closed condition, the source electrode of N ditch power field effect pipe Q1 is equivalent to ground connection, and power line voltage charges to capacitor C 4 by D1.When power field effect pipe Q1 conducting, source voltage raises rapidly, diode D1 is anti-inclined to one side, and described capacitor C 4 cathode voltages will be higher than power line voltage, and this voltage can be used as the grid bias power supply of N ditch power field effect pipe Q1, driving circuit utilizes this power supply that N ditch power field effect pipe is opened, when the TL494 output signal was in closed condition, the C4 negative pole is ground connection once more, reenters the C4 process of charging, so repeatedly, make motor obtain a stable power input.
The coil one termination working power VCC other end of described protective relay J1 links to each other with the collecting electrode of a transistor Q5; the grounded emitter of described transistor Q5; base stage and two resistance R 29; the end of R30 links to each other; the other end of two resistance links to each other with the end that connects working power of described protective relay J1; the output of described Hall element failure detection circuit and driving failure detection circuit is connected two resistance R 29; between the R30; a sustained diode 5 is connected in parallel on the two ends of described relay coil J1; the end of often opening electric shock of described protective relay J1 links to each other with the source electrode of described field effect transistor Q1, and the other end directly links to each other with motor.
Described Hall element circuit is made of protection diode D6, Hall element and the peripheral cell of avoiding misconnection 24V.One end ground connection of described Hall element, an end protects diode D6 to the 5V power supply through avoiding misconnection 24V, other end sending and receiving optical diode L1, divider resistance R10, R11 insert the inverting input 2IN-of the op amp 2 in the pulse width modulating chip TL494.The 2IN-of the termination pulse width modulating chip TL494 of feedback resistance R9, the FEEDBACK of another termination TL494.Insert the in-phase input end 2IN+ of TL494 in-to-in op amp 2 after resistance R 19 and the R13 dividing potential drop, VREF (Voltage Reference) is provided.Also has a resistance that is used to provide feedback voltage, one relay termination is often opened an end of electric shock, and the 2IN+ end of another termination pulse width modulating chip is when changing the output voltage of Hall element, through the effect of op amp, the pulse of the corresponding output different duty of TL494.Under the situation of Hall element circuit normal operation, the voltage signal of Hall element removes the width of control wave output by pulse width modulation circuit, reaches the purpose of regulating motor speed and power.
Described sensor failure testing circuit is made of a comparator U2B and peripheral circuit.Hall element machinery does not reset, and Hall element lost efficacy, and faults such as Hall element ground wire open circuit all are presented as at the circuit powered on moment, the existing abnormal voltage output that is higher than 1.8V of Hall element.The signal of Hall element output is directly given the end of oppisite phase of U2B, and makes comparisons with the resistance R 25 of the in-phase end that is connected to U2B, the partial pressure value on the R26.If the voltage of powered on moment end of oppisite phase is higher than the voltage of in-phase end, explanation is broken down, and comparator U2B output low level disconnects relay J 1 through R30, Q5, cuts off the power supply of motor, and controller is in guard mode.Otherwise comparator U2B exports high level, makes the relay adhesive through resistance R 30, transistor Q5, and controller is in normal working.During the controller normal operation, if user's rotary handle changes the output signal of Hall element, controller has output, because the setting of dividing potential drop between R27 and the R26, make the climbing speed of U2B in-phase end voltage signal be higher than end of oppisite phase, promptly relay can guarantee to keep adhesive during normal operation.If in the battery-driven car operational process, break down; only need this moment the user to start brake signal; the output of termination controller; this moment, the state of controller was just identical when powering on; U2B will find the too high fault signature of Hall element output; output low level disconnects protective relay, realizes protection.The Hall element failure detection circuit detects Hall element automatically, when detecting Hall element output error signal, and the turn-off protection relay, thus turn-offed the power supply of motor.
Described driving failure detection circuit is made of a comparator and peripheral circuit.When there being the pulse width modulation chip is not full conducting, be that capacitor C 4 is when existing process of charging, the voltage to ground of diode D1 negative pole will be higher than the nearly 20V of power supply, the voltage at capacitor C 4 two ends is sent into in-phase end and the end of oppisite phase of comparator U2A respectively and is made comparisons through resistance R 21, R22 after R23, the R24 dividing potential drop.The mouth of comparator links to each other with the coil of relay J 1 through resistance R 30, transistor Q5, and when control circuit was working properly, comparator U2A exported high level, relay J 1 adhesive, and motor can obtain normal driving voltage.When TL494 damages, or Q2, Q3, Q4 damage, or Q1 damages when causing full conducting, comparator U2A output low level, and relay discharges, thereby cuts off the motor power supply, prevents that the driving phenomenon from taking place.The function that drives failure detection circuit is exactly to detect booster driving circuit automatically.Turn-off protection relay after detecting booster driving circuit and losing efficacy, thus the power supply of motor disconnected.
Described motor current detecting circuit is made up of sampling resistor R14, sustained diode 3, divider resistance R6, R7, feedback resistance R8, the end ground connection of sampling resistor R14, the in-phase input end 1IN+ and the motor of another termination TL494 internal arithmetic amplifier 1.The reference voltage REF of the termination TL494 of R6; the other end is connected with R7; the inverting input 1IN-of input TL494 in-to-in op amp 1 after the dividing potential drop; reference point as R14 up-sampling voltage; the 1IN-of the termination pulse width modulating chip TL494 of feedback resistance R8; the FEEDBACK of another termination TL494; when power field effect pipe Q1 opens; the electric current of motor of flowing through is identical with electric current on the sampling resistor R14; when power field effect pipe turn-offs; the energy that is stored in motor internal is by sustained diode 3 flow through motor and R14; whenever thereby the electric current on the sampling resistor R14 is identical with electric current on the motor, and is directly proportional with pressure drop on the R14; when motor load overweight; when electric current was excessive, through the effect of TL494 internal arithmetic amplifier 1, TL494 will reduce pulsewidth output automatically; thereby the restriction electric current has been realized the automatic protection of motor within a certain setting value.Motor current detecting circuit detects the electric current of motor automatically; when the electric current of motor during greater than predetermined value; motor current detecting circuit is regulated pulsewidth output gradually by pulse-width modulation circuit; the electric current of restriction motor can not surpass predetermined value; protected motor; also indirect protection battery pack, do not allow the battery pack overdischarge.The function of described motor current detecting circuit is to detect and limit the overload protection of current of electric as battery-driven car, the protection motor in also indirect protection power supply.
Claims (10)
1; a kind of controller for electric vehicle; comprise power supply; control circuit and electrical motor; it is characterized in that: described control circuit comprises a pulse-width modulation circuit that is used to regulate the electric moter voltage pulse width; the booster driving circuit that driving voltage is provided to power field effect pipe; a power field effect pipe; a Hall element circuit that is used to respond to and receive extraneous control; one is used to detect the whether Hall element failure detection circuit of normal operation of Hall element circuit; one is used for that the detection power field effect transistor is damaged or the booster driving circuit driving failure detection circuit of normal operation whether; one is used to detect the flow through motor current detecting circuit of working current and a protective relay that receives each road detection signal and protect the motor normal operation of motor; connect pulse-width modulation circuit successively between described power supply and the described motor; booster driving circuit; power field effect pipe; protective relay; and direct connection has a branch road between power supply and the power field effect pipe; described motor current detecting circuit is connected between pulse-width modulation circuit and the motor; described driving failure detection circuit is connected between booster driving circuit and the protective relay, also is connected with Hall element circuit and hall sensing failure detection circuit between described pulse-width modulation circuit and the protective relay in turn.
2, controller for electric vehicle according to claim 1, it is characterized in that: described control circuit also comprises a line under-voltage testing circuit, be connected between described power supply and the pulse-width modulation circuit, be used to detect power line voltage whether in the normal condition scope, described voltage detection circuit is by a transistor, a stabilivolt, three resistance and a diode constitute, one end of described first resistance connects power supply, the other end connects the negative pole of described stabilivolt, the other end of stabilivolt connects described transistorized base stage and another resistance again, one end of all the other resistance connects power supply, the other end connects the positive pole of described transistorized collecting electrode and diode, the other end common ground of described transistorized emitter and another resistance, the negative pole of diode connects the dead band control end DTC of pulse width modulating chip.
3; controller for electric vehicle according to claim 1 and 2; it is characterized in that: described hall sensing circuit is by a Hall element; light-emitting diode and peripheral cell constitute; one end ground connection of described Hall element; one end is used to avoid the protection diode of misconnection 24V to link to each other with the 5V working power end through one; other end sending and receiving optical diode is connected between two resistance; described two resistance insert the inverting input 2IN-of the op amp in the pulse width modulating chip; the 2IN-of the described pulse-width modulation circuit of one termination of a feedback resistance in addition; the FEEDBACK end of the described pulse width modulating chip of another termination; insert the in-phase input end 2IN+ of pulse width modulating chip in-to-in op amp after two divider resistance dividing potential drops; VREF (Voltage Reference) is provided; also has a resistance that is used to provide feedback voltage; one relay termination is often opened an end of electric shock, the 2IN+ end of another termination pulse width modulating chip.
4, controller for electric vehicle according to claim 1 and 2, it is characterized in that: described pulse-width modulation circuit is made of pulse-width controlled chip and peripheral cell thereof, the output CTRL pin ground connection of described pulse width modulating chip, Q1 and the interior Q2 parallel way work of sheet in the sheet have been selected, ground connection after Q1E links to each other with Q2E, the Q1C of described pulse-width controlled chip, Q2C end are connected the back by a resistance access booster driving circuit.
5, controller for electric vehicle according to claim 1 and 2, it is characterized in that: described booster driving circuit is by four resistance of three transistors, a chemical capacitor and a diode and a protective tube and an electric door lock constitute, one of them transistor is NPN, all the other are PNP, the emitter of described NPN transistor with after the transistorized emitter of one of them PNP links to each other through the grid of a resistance access power field effect transistor, described two transistorized base stages link to each other with all the other transistorized collecting electrodes of transistor and a resistance after linking to each other, the other end of described resistance links to each other with the source electrode of transistorized collecting electrode of first PNP and power field effect pipe, second transistorized base stage of PNP links to each other with other two resistance respectively, one of them resistance links to each other with second transistorized emitter of PNP, the positive pole of described chemical capacitor successively with second transistorized emitter of PNP, the collecting electrode of NPN transistor links to each other after oppositely connect described diode, insert the drain electrode of N ditch power field effect pipe behind described electric door lock and the protective tube.
6; controller for electric vehicle according to claim 1 and 2; it is characterized in that: the coil one termination working power VCC of described protective relay; the other end links to each other with a transistorized collecting electrode; described transistorized grounded emitter; base stage links to each other with an end of two resistance; the other end of two resistance links to each other with an end that connects working power of described protective relay; the output of described Hall element failure detection circuit and driving failure detection circuit is connected between two resistance; a flywheel diode is connected in parallel on the two ends of described relay coil; an end of often opening electric shock of described protective relay links to each other with the source electrode of described field effect transistor, and the other end directly links to each other with motor.
7, controller for electric vehicle according to claim 1 and 2 is characterized in that: described hall sensing failure detection circuit is made of a comparator and peripheral circuit, and its output is connected between two resistance that link to each other with described protective relay.
8, controller for electric vehicle according to claim 1 and 2 is characterized in that: described driving failure detection circuit is made of a comparator and peripheral circuit, and its output is connected between two resistance that link to each other with described protective relay.
9, controller for electric vehicle according to claim 1 and 2, it is characterized in that: described motor current detecting circuit is by a sampling resistor, a flywheel diode, two divider resistances, a feedback resistance is formed, one end ground connection of described sampling resistor, the in-phase input end 1IN+ of another termination motor and pulse width modulating chip internal arithmetic amplifier, the reference voltage terminal of one termination pulse width modulating chip of a described divider resistance, the other end after the dividing potential drop is connected with another divider resistance, and the inverting input 1IN-of access pulse width modulating chip in-to-in op amp, reference point as described sampling resistor up-sampling voltage, the 1IN-end of one termination pulse width modulating chip of described feedback resistance, its FEEDBACK end of another termination.
10, controller for electric vehicle according to claim 1 and 2 is characterized in that: described field effect transistor is a depletion mode N channel field-effect pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004201152022U CN2759832Y (en) | 2004-11-17 | 2004-11-17 | Device for controlling electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004201152022U CN2759832Y (en) | 2004-11-17 | 2004-11-17 | Device for controlling electric vehicle |
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| CN2759832Y true CN2759832Y (en) | 2006-02-22 |
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| CNU2004201152022U Expired - Lifetime CN2759832Y (en) | 2004-11-17 | 2004-11-17 | Device for controlling electric vehicle |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010060361A1 (en) * | 2008-11-26 | 2010-06-03 | Byd Company Limited | Gear control system and contral method thereof |
| 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 |
| CN102501780A (en) * | 2011-11-24 | 2012-06-20 | 无锡爱玛车业有限公司 | Three-gear shunt controller for electric vehicle |
| CN104443247A (en) * | 2014-12-24 | 2015-03-25 | 江苏科技大学 | Anti-galloping system for double-controller electric bicycle |
| CN109141507A (en) * | 2018-08-03 | 2019-01-04 | 大陆汽车电子(长春)有限公司 | Hall sensor fault detection method, louver controller and skylight drive system |
| CN113043850A (en) * | 2019-12-26 | 2021-06-29 | 观致汽车有限公司 | Vehicle, high-voltage discharge system of vehicle and control method thereof |
| CN116388469A (en) * | 2023-04-03 | 2023-07-04 | 浙江同舟汽车配件有限公司 | Driving device and driving method thereof |
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2004
- 2004-11-17 CN CNU2004201152022U patent/CN2759832Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010060361A1 (en) * | 2008-11-26 | 2010-06-03 | Byd Company Limited | Gear control system and contral method thereof |
| US8370035B2 (en) | 2008-11-26 | 2013-02-05 | Byd Co. Ltd. | Gear control system and method |
| CN101734173B (en) * | 2008-11-26 | 2013-08-28 | 比亚迪股份有限公司 | Control system and method of motor gear |
| 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 |
| CN102501780A (en) * | 2011-11-24 | 2012-06-20 | 无锡爱玛车业有限公司 | Three-gear shunt controller for electric vehicle |
| CN102501780B (en) * | 2011-11-24 | 2014-06-04 | 江苏爱玛车业科技有限公司 | Three-gear shunt controller for electric vehicle |
| CN104443247A (en) * | 2014-12-24 | 2015-03-25 | 江苏科技大学 | Anti-galloping system for double-controller electric bicycle |
| CN109141507A (en) * | 2018-08-03 | 2019-01-04 | 大陆汽车电子(长春)有限公司 | Hall sensor fault detection method, louver controller and skylight drive system |
| CN113043850A (en) * | 2019-12-26 | 2021-06-29 | 观致汽车有限公司 | Vehicle, high-voltage discharge system of vehicle and control method thereof |
| CN116388469A (en) * | 2023-04-03 | 2023-07-04 | 浙江同舟汽车配件有限公司 | Driving device and driving method thereof |
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