CN200977872Y - Electric vehicle safety driving controller with multiple intelligent protection function - Google Patents
Electric vehicle safety driving controller with multiple intelligent protection function Download PDFInfo
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- CN200977872Y CN200977872Y CNU2006201119574U CN200620111957U CN200977872Y CN 200977872 Y CN200977872 Y CN 200977872Y CN U2006201119574 U CNU2006201119574 U CN U2006201119574U CN 200620111957 U CN200620111957 U CN 200620111957U CN 200977872 Y CN200977872 Y CN 200977872Y
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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
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Abstract
The utility model relates to an electric vehicle safety controller with multi-intelligent protection functions, comprising a main control circuit arranged on the circuit board in the crust, a motor drive circuit and an electrical level transfer circuit. The motor drive circuit is connected with the motor and the main control circuit is in serial connection with the fault alarm light. The utility model is characterized in that the CURRENT terminal of the motor drive circuit is connected in series with the CURRENT terminal of the main control circuit; the wiring terminals of the main control circuit are connected with a speed control handle sensor, a turning signal sensor, an automatic or manual switch, a brake sensor and a motor rotor position sensor respectively. The advantages of the utility model lie in that: based on a traditional controller, turning signal is added according to which together with the speed control handle signal and the motor rotor position signal, one can measure and calculate the rotate speed of the motor, acceleration and judge the vehicle working conditions to fix the power supply voltage, so that the engine works within a safe range, thus ensuring the safety of the driver as well as the vehicle.
Description
Technical field
The utility model relates to the battery-driven car safety traffic controller with multiple intelligent protection function.
Background technology
Controller is one of parts of battery-driven car indispensability.The control method of present controller for electric vehicle all is the operating handle direct control motor power supply voltage according to the bicyclist, and this artificial mode is easy to occur maloperation, and traffic safety is threatened.Such as vehicle in the turning process, the moving velocity that must reduce vehicle in order to prevent to turn on one's side is to guarantee needed centripetal force in the turning process, must suitably reduce the motor power supply voltage this moment, even should stop the motor power supply, but because the power supply voltage of motor passes through the governor handle direct control by the bicyclist, the bicyclist is difficult to the accurately control safety traffic voltage of this moment, if exceeding safety voltage, power supply voltage just must make car speed too fast, cause vehicle rollover, influence the safety of bicyclist and vehicle.For another example in the acceleration and brake process of vehicle, being connected of people and car body is to provide adhesive ability such as contact force and friction force to guarantee the motion that is consistent of bicyclist and car body by handlebar and seat etc., but this adhesive ability has certain limit, the people will drop down from car when this adhesive ability can't keep consistent the moving of human body and car body, and bicyclist and vehicle are caused danger.The mode of present controller for electric vehicle is bicyclist's direct control motor power supply voltage, thereby the acceleration of control vehicle and moderating process, if motor power supply voltage mal will cause the acceleration of vehicle too fast or slow down too fast, make the adhesive ability between people's car be not enough to provide bicyclist's acceleration/accel identical with car body or deceleration/decel, the people will drop down from car.Prevent that this accident from taking place to monitor in real time the driving process of vehicle, power supply voltage according to driving cycle control motor, make the acceleration of vehicle and moderating process in the safe range that allows, guarantee that bicyclist and the consistent of car body moves, prevent the fallen accident generation.At present, the controller of Electrical Bicycle and battery-operated motor cycle does not all have turning, brake and acceleration protection function, so there is potential safety hazard.
Summary of the invention
The purpose of this utility model is the potential safety hazard that exists at existing electric vehicle motor power supply control, and a kind of battery-driven car safety traffic controller with multiple intelligent protection function is provided.It can be in the turn inside diameter process volitional check speed of a motor vehicle, can be in the process of vehicle brake the deceleration/decel of restricted speed, can be in the process that vehicle quickens the acceleration/accel of restricted speed, keep the actual condition of motor power supply voltage and battery-driven car to be complementary, reduce power consumption, prevent that driver and crew's fallen accident from taking place.
Battery-driven car safety traffic controller with multiple intelligent protection function described in the utility model comprises the governor circuit that is located on the housing interior circuit board, the motor-drive circuit that connects with governor circuit, connects level shifting circuit with governor circuit and motor-drive circuit respectively; Controller power source connects with level shifting circuit, and motor power connects with motor-drive circuit; Motor-drive circuit connects with motor, and governor circuit connects with trouble lamp; It is characterized in that: the CURRENT end of motor-drive circuit connects with the CURRENT end of governor circuit; The connection terminal J_SPD of governor circuit connects with the governor handle sensor, connection terminal J_TN connects with the turn sign sensor, connection terminal J_AM connects with manual switch, connection terminal J_BKH and connection terminal J_BKL connect with brake sensor, and connection terminal J_SA, connection terminal J_SB and connection terminal J_SC connect with motor rotor position sensor.
Described battery-driven car safety traffic controller with multiple intelligent protection function, the connection terminal J_PC+ and the connection terminal J_PGND of its level shifting circuit connect with controller power source.
Described battery-driven car safety traffic controller with multiple intelligent protection function, the connection terminal J_U of its motor-drive circuit, connection terminal J_V and connection terminal J_W connect with motor.
Governor circuit: finish the conversion of analog signal, the measurement of rotating speed, the detection of switching value etc., then signal is carried out exporting control signal after software is handled and be transferred to motor-drive circuit, and the output breakdown signal is given trouble lamp.
Motor-drive circuit: driving circuit is supplied with the average motor operating voltage according to the control signal of governor circuit.
Level shifting circuit: with the 48V voltage transitions of battery pack output is that 30V, 15V, 5V, 4.3V, 3.3V low level power are supplied with each circuit and used.
This controller gathered governor handle, turned to, braked, manually/intelligent change-over switch and motor rotor position signal, wherein governor handle, turn to and be analog signals, brake, artificial/intelligence switch to on-off signal.Conversion, calculating, correction to signal are finished by micro controller system, by to these Signal Processing, export control signal and give motor-drive circuit, control the power supply voltage of motor exactly, guarantee the safety traffic of vehicle.This controller can effectively guarantee the dynamic property of car load under the prerequisite that guarantees safety, and reduces electric quantity consumption with extending battery life and raising economy.
This controller is according to the highest speed of a motor vehicle that turns to of turn sign restriction, determine the motor power supply voltage, make vehicle automatic speed-limiting or deceleration in the turning process, guarantee the safety of rider and vehicle, controller can calculate the acceleration/accel of vehicle when measuring the speed of a motor vehicle, determine the motor power supply voltage with the maximum acceleration limiting method, the relative speed variation of restriction vehicle when quickening and brake prevents that the rider from falling from car.This control method can effectively guarantee the dynamic property of car load under the prerequisite that guarantees vehicle driving safety, reduce electric quantity consumption when varying duty such as turning, acceleration, brake.
In the process of turn inside diameter, controller will be determined Maximum speed limit, and be controlled the motor power supply voltage in view of the above according to the angle of turn high low signal of rotation direction sensor input and in conjunction with the driving cycle of vehicle, makes speed limit in safe range.
In the process of vehicle brake or acceleration, according to the signal of brake sensor and governor handle input and in conjunction with vehicle working condition restriction the max speed rate of change, and determine the motor power supply voltage in view of the above, bondsman's car is synchronized with the movement, and prevents that the bicyclist from falling from car.
This controller has been gathered governor handle signal, turn sign, brake signal, manual on-off signal, motor position signal, and wherein governor handle signal, turn sign are analog signals, and manual switch, brake are on-off signal.Governor circuit carries out the A/D conversion to the analog signals of input, the on-off signal of importing is carried out state judge, measures rotating speed of motor and acceleration/accel according to the motor position signal of input.By to these Signal Processing, the output control signal is given motor-drive circuit, controls the motor power supply voltage exactly, prevent from sorrowfully to turn over, preceding turn over and after turn over, guarantee the safety traffic of vehicle.This controller is guaranteeing under the prerequisite of safety, the dynamic property of not losing car load, and reduce electric quantity consumption under varying duty such as turning, brake, acceleration.
Advantage of the present utility model is: increase turn sign on the basis of original controller, in conjunction with the governor handle signal with according to motor rotor position signal measurement and the motor speed, the acceleration/accel that calculate, judge vehicle working condition, determine power supply voltage, make engine operation in safe range, guarantee the safety of bicyclist and vehicle.
In the process that turns to, this controller adopts the method for restriction maximum speed, and Vehicular turn is big more, and then Maximum speed limit is low more, and according to the signal deciding safe motor power supply voltages such as speed that record in real time.Work as Ackermann steer angle, controller is judged the size of angle of turn according to the signal of rotation direction sensor, calculate Maximum speed limit according to vehicle driving-cycle, again according to current vehicle speed decision motor power supply voltage, if being higher than Maximum speed limit, actual vehicle speed then stops the motor power supply, make the speed of vehicle drop to safe range in the shortest time, if actual vehicle speed is lower than Maximum speed limit, then given value and the Maximum speed limit according to governor handle determines the motor power supply voltage.The save power consumption to greatest extent of this method for controlling number of revolution improves economy, and guaranteeing to make the turning process fast sensitive when vehicle safety is turned, has guaranteed the dynamic property of vehicle.
In the process of vehicle brake and acceleration, this controller adopts high acceleration lambda limiting process, and this peak acceleration is divided into positive acceleration and negative acceleration.Micro controller system is also calculating the acceleration/accel of vehicle in real time when in real time measuring rotating speed, the initial KB limit of the given acceleration/accel of micro controller system at first, according to the speed of a motor vehicle etc. initial value is revised again, then according to final safe motor power supply voltages of decision such as brake signal and governor handle signals.The control method that adopts in the utility model at first guarantees the safety of bicyclist and vehicle, puts before this and reduces electric quantity consumption as far as possible, improves economy and satisfies dynamic property.
Description of drawings
Fig. 1 is a structure principle chart of the present utility model.
Fig. 2 is a controller circuitry schematic diagram of the present invention.
The specific embodiment
Referring to Fig. 1 and Fig. 2, governor circuit 1, motor-drive circuit 2 and level shifting circuit 3 are installed on the housing interior circuit board, and UH, UL, VH, VL, WH, WL and the CURRENT end of governor circuit are connected with UH, UL, VH, VL, WH, WL and the CURRENT end of motor-drive circuit, level shifting circuit 3 connects with governor circuit and motor-drive circuit respectively; The connection terminal J_PC+ of level shifting circuit and connection terminal J_PGND connect with controller power source 4; Motor power 5 connects with motor-drive circuit, and the connection terminal J_U of motor-drive circuit, connection terminal J_V and connection terminal J_W connect with motor 6; Motor-drive circuit connects with motor 6; Governor circuit connects with trouble lamp 7;
The connection terminal J_SPD of governor circuit is connected with governor handle sensor 8, connection terminal J_TN connects with turn sign sensor 9, connection terminal J_AM connects with manual switch 10, connection terminal J_BKH and connection terminal J_BKL connect with brake sensor 11, and connection terminal J_SA, connection terminal J_SB and connection terminal J_SC connect with motor rotor position sensor 12.
Governor circuit: finish the conversion of analog signal, the measurement of rotating speed, the detection of switching value etc., then signal is carried out software and handle back output control signal, alerting signal, wherein control signal is used on the control Driver Circuit power switch bridge MOSFET and carries out conducting according to motor position signal and close, wherein descending brachium pontis is the PWM mode, and governor circuit is selected C8051F330 micro controller system and motor special integrated circuit MC33035 for use;
Motor-drive circuit: MOSFET selects P75NF75 for use, the configuration correspondent peripheral circuit, and the incoming signal of this part circuit is the brachium pontis on-off signal, output motor three phase connections;
Control method is as follows:
(1) gathers and judge that battery voltage signal, temperature signal, motor current signal whether in safe range, if not in safe range, then export breakdown signal, stop to power, if in safe range then enter the operation control program to motor;
(2) enter the operation control program after, judge manual on off state, if manual state then controller directly according to the power supply voltage of the size of governor handle signal control motor, if auto state then enters automatic control program, comprise in the automatic control program that intelligence turns to defence program, intelligent braking defence program, intelligent acceleration protection program;
(3) intelligence turns to defence program according to the turn sign of gathering in real time, look into maximum speed-steering curve, determine the maximum speed that this moment, vehicle safety was exercised, if actual vehicle speed surpasses maximum speed, then control Driver Circuit disable motor power supply lowers the speed of vehicle as soon as possible;
(4) the intelligent braking defence program is according to the speed of a motor vehicle and the vehicle acceleration signal of gathering in real time, look into high acceleration-speed of a motor vehicle curve, determine the peak acceleration of vehicle safe brake this moment, the direction of this peak acceleration is opposite with vehicle enforcement direction, if the vehicle actual acceleration surpasses peak acceleration, calculate the acceleration/accel difference of actual acceleration and peak acceleration, then look into motor power supply voltage-acceleration/accel difference curve, determine the motor power supply voltage of this moment;
(5) intelligent acceleration protection program is according to the speed of a motor vehicle and the vehicle acceleration gathered in real time; look into high acceleration-speed of a motor vehicle curve; determine the peak acceleration that this moment, vehicle safety quickened; the direction of this peak acceleration is identical with vehicle enforcement direction; if the vehicle actual acceleration surpasses peak acceleration; calculate the acceleration/accel difference of actual acceleration and peak acceleration, then look into motor power supply voltage-acceleration/accel difference curve, determine the motor power supply voltage of this moment.
Claims (3)
1, the battery-driven car safety traffic controller that has multiple intelligent protection function comprises the governor circuit (1) that is located on the housing interior circuit board, the motor-drive circuit (2) that connects with governor circuit, connects level shifting circuit (3) with governor circuit and motor-drive circuit respectively; Controller power source (4) connects with level shifting circuit, and motor power (5) connects with motor-drive circuit; Motor-drive circuit connects with motor (6), and governor circuit connects with trouble lamp (7); It is characterized in that: the CURRENT end of motor-drive circuit (2) connects with the CURRENT end of governor circuit (1); The connection terminal J_SPD of governor circuit connects with governor handle sensor (8), connection terminal J_TN connects with turn sign sensor (9), connection terminal J_AM connects with manual switch (10), connection terminal J_BKH and connection terminal J_BKL connect with brake sensor (11), and connection terminal J_SA, connection terminal J_SB and connection terminal J_SC connect with motor rotor position sensor (12).
2, the battery-driven car safety traffic controller with multiple intelligent protection function according to claim 1, it is characterized in that: the connection terminal J_PC+ of level shifting circuit (3) and connection terminal J_PGND connect with controller power source (4).
3, the battery-driven car safety traffic controller with multiple intelligent protection function according to claim 1 and 2, it is characterized in that: the connection terminal J_U of motor-drive circuit (2), connection terminal J_V and connection terminal J_W connect with motor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201119574U CN200977872Y (en) | 2006-12-14 | 2006-12-14 | Electric vehicle safety driving controller with multiple intelligent protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201119574U CN200977872Y (en) | 2006-12-14 | 2006-12-14 | Electric vehicle safety driving controller with multiple intelligent protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200977872Y true CN200977872Y (en) | 2007-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201119574U Expired - Fee Related CN200977872Y (en) | 2006-12-14 | 2006-12-14 | Electric vehicle safety driving controller with multiple intelligent protection function |
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| Country | Link |
|---|---|
| CN (1) | CN200977872Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060020A (en) * | 2010-12-24 | 2011-05-18 | 上海信祯贸易有限公司 | Device and method for automatically controlling safe running of electrical vehicle for children |
| CN101407183B (en) * | 2008-11-20 | 2012-05-23 | 宋在务 | Controller for electric vehicle |
-
2006
- 2006-12-14 CN CNU2006201119574U patent/CN200977872Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101407183B (en) * | 2008-11-20 | 2012-05-23 | 宋在务 | Controller for electric vehicle |
| CN102060020A (en) * | 2010-12-24 | 2011-05-18 | 上海信祯贸易有限公司 | Device and method for automatically controlling safe running of electrical vehicle for children |
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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: 20071121 Termination date: 20131214 |