CN104276049A - Circuit device capable of automatically cutting off speed controller during lateral inclining or toppling over of electric vehicle - Google Patents
Circuit device capable of automatically cutting off speed controller during lateral inclining or toppling over of electric vehicle Download PDFInfo
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- CN104276049A CN104276049A CN201410585505.9A CN201410585505A CN104276049A CN 104276049 A CN104276049 A CN 104276049A CN 201410585505 A CN201410585505 A CN 201410585505A CN 104276049 A CN104276049 A CN 104276049A
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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 invention provides a circuit device capable of automatically cutting off a speed controller during lateral inclining or toppling over of an electric vehicle. The circuit device is characterized by comprising a direct current (DC) voltage stabilizing circuit, an inclination detection circuit, a voltage comparison circuit and a power outage alarm circuit, wherein the DC voltage stabilizing circuit is respectively connected with the inclination detection circuit, the voltage comparison circuit and the power outage alarm circuit, and is used for providing a voltage stabilization DC power source for the circuits; the inclination detection circuit is connected with the voltage comparison circuit, and is used for comparing a voltage signal of the angle of inclination with the preset voltage of the voltage comparison circuit for comparison computation; the voltage comparison circuit is connected with the power outage alarm circuit, so that the computation result is input into the power outage alarm circuit, and the power outage alarm circuit is controlled. The circuit device is additionally arranged on the electric vehicle, and the speed controller is automatically disconnected with a controller during lateral inclining or toppling over of the electric vehicle, so that the drive for the electric vehicle can be stopped, and the safety of a rider can be guaranteed. The circuit device is simple and convenient to install, low in cost and high in practicality.
Description
Technical field
The present invention relates to a kind of control speed regulator for electric vehicle dead circuit device, specifically a kind of battery-driven car lateral inclination or control governor automatic dead circuit device when toppling over, belong to electric vehicle and bicycle innovation safety fittings applied technical field, battery-driven car herein refers in particular to Electrical Bicycle or battery-operated motor cycle.
Background technology
Along with the development of society, the jam of city traffic is more and more serious, light and battery-driven car that is energy-conserving and environment-protective more and more obtains the favor of people flexibly, current battery-driven car has become on and off duty and other the movable important walking-replacing tools of a lot of people, and the requirement of people to the safety performance of battery-driven car is also more and more higher.The kind of battery-driven car is a lot, but main type of drive is the same, is all the governor being controlled battery-driven car by handle, then controls controller for electric vehicle by governor, is controlled start and stop and the rotating speed of electric vehicle motor, thus drive battery-driven car by controller.In the process of riding battery-driven car, when causing battery-driven car tilt or topple over when having an accident, the hand that cyclist controls battery-driven car speed control crank often can not unclamp in time, even also can subconscious hand-to-hand grip handle, battery-driven car is made still to keep when toppling over driving the state even accelerated, out of control to battery-driven car of cyclist can be caused like this, be easy to cause secondary injury to cyclist.
Summary of the invention
Governor automatic dead circuit device is controlled when the object of the invention is to design a kind of battery-driven car lateral inclination or topple over, by installing this circuit arrangement on battery-driven car additional, when battery-driven car inclination or when toppling over, the connection of governor and controller can disconnect automatically, thus stop the driving to battery-driven car, ensure the safety of cyclist.
The concrete technical scheme that the present invention takes is as follows:
A kind of battery-driven car lateral inclination or governor automatic dead circuit device when toppling over, it is characterized in that: its circuit comprises direct current regulation circuit, tilt detection circuit, voltage comparator circuit and cut-offing alarming circuit, wherein direct current regulation circuit respectively with tilt detection circuit, voltage comparator circuit, cut-offing alarming circuit is connected, for it provides constant voltage dc source, tilt detection circuit is connected with voltage comparator circuit, the voltage signal at angle of inclination and the predeterminated voltage of voltage comparator circuit are compared computing, voltage comparator circuit is connected with cut-offing alarming circuit, operation result is inputted cut-offing alarming circuit control it.
Described direct current regulation circuit is respectively tilt detection circuit, voltage comparator circuit and cut-offing alarming circuit and provides+5V and+3.3V power line voltage.
Described tilt detection circuit adopts 3-axis acceleration chip U6 to build, the concrete model of chip is MMA7361,2 pin of 3-axis acceleration chip U6,3 pin, 4 pin are respectively the voltage output pin of X-axis, Y-axis and Z axis, it is respectively through electric capacity C10, C11, C12 ground connection, the 5 pin ground connection of 3-axis acceleration chip U6,6 pin connect+5V power line voltage, and through electric capacity C13 ground connection, 7 pin and 13 pin connect+3.3V power line voltage, 10 pin connect+3.3V power line voltage or ground connection, and 3 pin Y-axis voltages export also access voltage comparator circuit and carry out voltage compare.
Described voltage comparator circuit adopts voltage comparator chip U7 to build, and the concrete model of chip is LM393, and the 3 pin Y-axis voltages of 3-axis acceleration chip U6 export point two-way and access 2 pin of voltage comparator chip U7 and 5 pin respectively to provide voltage to be compared; The break 2 of+3.3V power line voltage access tri-gear dual-ganged switch K2 after resistance R11 and R12 connects dividing potential drop, then through contact heel 1 ground connection of tri-gear dual-ganged switch K2, the break 3,4, potential point UH that potential point UH between resistance R11 and R12 divides two-way to access tri-gear dual-ganged switch K2 respectively after connecting resistance R13, R14 respectively also has 3 pin of a road access voltage comparator chip U7 to provide high-order threshold voltage; + 3.3V power line voltage accesses the break 7 of tri-gear dual-ganged switch K2 after resistance R15 and R16 connects dividing potential drop, then through contact heel 8 ground connection of tri-gear dual-ganged switch K2, the break 6,5, potential point UH that potential point UL between resistance R15 and R16 divides two-way to access tri-gear dual-ganged switch K2 respectively after connecting resistance R17, R18 respectively also has 6 pin of a road access voltage comparator chip U7 to provide low level threshold voltage; 8 pin one tunnels of voltage comparator chip U7 connect+5V power line voltage, and another road connects 1 pin of voltage comparator chip U7 and the parallel outputs Uout of 7 pin through resistance R2, and parallel outputs Uout is connected to cut-offing alarming circuit.
Described cut-offing alarming circuit adopts buzzer phone U5 and relay K 1 to build, buzzer phone U5 uses active buzzer BUF1, relay K 1 uses T74 relay, one end of+5V power line voltage access buzzer phone U5, the emitter of the other end access PNP triode Q2 of buzzer phone U5, the grounded collector of aerotron Q2, the two ends of buzzer phone U5 are parallel with the diode D5 of an Opposite direction connection, also be parallel with the coil of relay K 1, the normally closed contact of relay K 1 is serially connected in the handle signal wire (SW) of battery-driven car, the output voltage signal of 1 pin of voltage comparator chip U7 and the parallel outputs Uout of 7 pin divides two-way, the base stage of aerotron Q2 is loaded on after one tunnel series resistance R3, another road is through electric capacity C6 ground connection.
+ 5V the power line voltage of described direct current regulation circuit directly can adopt+5V the power line voltage of electric vehicle rotary handle, also+12V power line voltage can be got from the controller of battery-driven car, convert through voltage stabilizing chip U1, voltage stabilizing chip U1 can adopt DC/DC converter control circuit chip MC34063.+ 3.3V the power line voltage of described direct current regulation circuit adopts+5V power line voltage to convert through voltage stabilizing chip U4, and voltage stabilizing chip U4 can adopt RT9161.
The present invention is by adopting above-mentioned technical scheme, by this circuit arrangement serial connection electric vehicle rotary on signal wire (SW), namely be equivalent to connect between speed regulator for electric vehicle and controller, after battery-driven car opens electric switch energising, when battery-driven car is static or travel, when this circuit arrangement detects that battery-driven car to the left or to the right tilts to be more than or equal to 45 ° in real time, the i.e. battery-driven car precarious position that reaches dangerous inclined degree or toppled over, now this circuit arrangement disconnects governor automatically, open and report to the police, stop driving battery-driven car; If do not reach dangerous inclined degree, then do not disconnect governor, battery-driven car normally travels.Present invention achieves auto-breaking when battery-driven car danger is tilted and topples over and stop the function driving, add the safety of battery-driven car.
Compared to the mode of roll-over power interruption switch mechanical on market, stability of the present invention is high, not by the acceleration action on gravity direction and horizontal direct of travel, can reduce erroneous judgement and fault rate, increase the safety in utilization of battery-driven car.
The present invention can be arranged on it electric bicycle, and also can be integrated in controller for electric vehicle, simple installation, cost is low, practical.
Accompanying drawing explanation
Fig. 1 is the model calling figure of circuit arrangement of the present invention, and dotted line frame inside is divided into this circuit arrangement.
Fig. 2 is the concrete implementing circuit figure of circuit arrangement of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, its circuit of circuit arrangement of the present invention comprises direct current regulation circuit, tilt detection circuit, voltage comparator circuit and cut-offing alarming circuit, wherein direct current regulation circuit respectively with tilt detection circuit, voltage comparator circuit, cut-offing alarming circuit is connected, for it provides constant voltage dc source, tilt detection circuit is connected with voltage comparator circuit, the voltage signal at angle of inclination and the predeterminated voltage of voltage comparator circuit are compared computing, voltage comparator circuit is connected with cut-offing alarming circuit, operation result is inputted cut-offing alarming circuit control it.
Fig. 2 is a concrete implementing circuit figure of circuit arrangement of the present invention, and as shown in Figure 2, the principle of work of its circuit is as follows:
Direct current regulation circuit is respectively tilt detection circuit, voltage comparator circuit and cut-offing alarming circuit and provides+5V and+3.3V power line voltage.+ 5V the power line voltage of direct current regulation circuit adopts the+12V power line voltage of controller for electric vehicle to convert through voltage stabilizing chip U1.Voltage stabilizing chip U1 adopts DC/DC converter control circuit chip MC34063.+ 3.3V power line voltage adopts+5V power line voltage to convert through voltage stabilizing chip U4, and voltage stabilizing chip U4 adopts RT9161.
Tilt detection circuit adopts 3-axis acceleration chip U6 to build, and the concrete model of chip is MMA7361, and 3 pin of 3-axis acceleration sensor U6 are Y-axis voltage output pin, exports analog voltage.The output area of Y-axis 0 ° ~ 180 ° of turnover voltages is 0.99V ~ 2.69V, and when horizontal positioned (90 °), Y-axis exports as 1.65V(theoretical value), when being tilted to the left, voltage reduces, and when being tilted to the right, voltage increases.Y-axis voltage output pin access voltage comparator circuit carries out voltage compare as power supply to be measured.
Voltage comparator circuit adopts voltage comparator chip U7 to build, and the concrete model of chip is LM393, and the 3 pin Y-axis voltages of 3-axis acceleration chip U6 export point two-way and access 2 pin of voltage comparator chip U7 and 5 pin respectively to provide voltage to be compared; + 3.3V power line voltage accesses tri-gear dual-ganged switch K2 ground connection after resistance R11 and R12 connects dividing potential drop, and the potential point UH between resistance R11 and R12 accesses 3 pin of voltage comparator chip U7 to provide high-order threshold voltage, and setting high-order threshold voltage is 2.48V.+ 3.3V power line voltage accesses tri-gear dual-ganged switch K2 ground connection after resistance R15 and R16 connects dividing potential drop, and the potential point UL between resistance R15 and R16 accesses 6 pin of voltage comparator chip U7 to provide low level threshold voltage, and setting low level threshold voltage is 1.1V.When 2 pin of voltage comparator chip U7 and the voltage to be compared (i.e. the 3 pin Y-axis voltages of 3-axis acceleration chip U6) of 5 pin are between the high-order threshold voltage 2.48V and the low level threshold voltage 1.1V of 6 pin of 3 pin, 1 pin of voltage comparator chip U7 and the parallel outputs Uout of 7 pin connect pull-up resistor R2, export high level+5V, time outside the scope (1.1V ~ 2.48V) that voltage to be compared exceeds high-order threshold voltage and low level threshold voltage, 1 pin or the 7 pin mouths of voltage comparator can overturn, and make its parallel outputs Uout output low level 0V.In addition in order to expand or reduce the scope of high-low-position threshold voltage, can two-way divider resistance R13, R14 be established to be connected to tri-gear dual-ganged switch K2 at potential point UH place more, also establish two-way divider resistance R17, R18 to be connected to tri-gear dual-ganged switch K2 at potential point UL place more, set the parameter of each resistance, just can by the high-low-position threshold voltage scope regulating tri-gear dual-ganged switch K2 to regulate three gears.
Cut-offing alarming circuit adopts buzzer phone U5 and relay K 1 to build, buzzer phone U5 uses active buzzer BUF1, relay U5 uses T74 relay, the normally closed contact of relay K 1 is serially connected in the handle signal wire (SW) of battery-driven car, the output voltage signal of 1 pin of voltage comparator chip U7 and the parallel outputs Uout of 7 pin is loaded into conducting and the cut-off of the base stage control aerotron of aerotron Q2 after electric capacity C6 filtering, and aerotron adopts PNP type triode 8550.The coil controlling buzzer phone U5 and relay K 1 by the break-make controlling aerotron Q2 whether electric, thus control warning and power-off.
This device is installed to electric bicycle or be integrated in controller for electric vehicle with it when using, and from controller power taking.Keep battery-driven car upright during installation, the 3-axis acceleration chip U6 in this circuit arrangement faced up, Z axis vertically upward, Y-axis horizontal positioned vertical electric car vehicle body.After Electrical Bicycle energising, this circuit arrangement is started working, when Electrical Bicycle travels or is static, tilt detection circuit detects Electrical Bicycle vehicle body lateral inclination degree in real time, from the voltage signal of the Y-axis voltage output pin exporting change of 3-axis acceleration chip U6, to voltage comparator circuit process.When electric vehicle body be tilted to the left be less than 45 ° or be tilted to the right be less than 45 ° time, the Y-axis voltage output pin output voltage values of tilt detection circuit is within the scope of 1.1V ~ 2.48V, do not exceed the high-low threshold voltage range of voltage comparator circuit setting, the voltage compare mouth of voltage comparator circuit exports high level, the base stage of the aerotron Q2 of cut-offing alarming circuit receives high level not conducting, then the normally closed contact point of relay K 1 does not disconnect, handle signal wire (SW) keeps connecting, governor and controller keep being connected, buzzer phone U5 does not report to the police, Electrical Bicycle normally travels, when electric vehicle body be tilted to the left be greater than 45 ° or be tilted to the right be greater than 45 ° time, or when toppling over, the Y-axis voltage output pin output voltage values of tilt detection circuit exceeds 1.1V ~ 2.48V scope, exceed the high-low threshold voltage range of voltage comparator circuit setting, the voltage compare mouth output low level of voltage comparator circuit, the base stage of the aerotron Q2 of cut-offing alarming circuit receives low level conducting, then relay K 1 adhesive, its normally closed contact point disconnects, handle signal wire (SW) disconnects, governor and controller disconnect, Electrical Bicycle stops driving, buzzer phone U5 power alarm sound prompting simultaneously, thus reach the object that battery-driven car topples over the dangerous driving of stopping automatically advance, prevent that battery-driven car is out of control causes secondary injury to cyclist, improve the safety performance of battery-driven car.When battery-driven car recovers to attention, this device can recover the connection between governor and controller automatically, and battery-driven car is normally used.
Tri-gear dual-ganged switch K2 in this circuit arrangement can adjust the high-low threshold voltage range of voltage comparator circuit, the trigger angle of inclined degree can be changed, first grade of angle of inclination for acquiescence, second gear is for reducing angle of inclination, third gear, for increasing angle of inclination, can regulate according to actual conditions.
This circuit arrangement uses digital obliquity sensing, stability is high, and only judge that vehicle body plumb bob vertical direction tilts degree, the i.e. tilt variation of horizontal Y-axis, and not by the impact of other axis directions, therefore the impact of battery-driven car driving process moderately gusty air and vibrations is not subject to, have aseismicity, compared to the mode of mechanical roll-over power interruption switch, this mode stability and reliability is higher, can erroneous judgement and fault rate be reduced, increase the safety in utilization of battery-driven car.
Claims (6)
1. a battery-driven car lateral inclination or governor automatic dead circuit device when toppling over, it is characterized in that: its circuit comprises direct current regulation circuit, tilt detection circuit, voltage comparator circuit and cut-offing alarming circuit, wherein direct current regulation circuit respectively with tilt detection circuit, voltage comparator circuit, cut-offing alarming circuit is connected, for it provides constant voltage dc source, tilt detection circuit is connected with voltage comparator circuit, the voltage signal at angle of inclination and the predeterminated voltage of voltage comparator circuit are compared computing, voltage comparator circuit is connected with cut-offing alarming circuit, operation result is inputted cut-offing alarming circuit control it.
2. circuit arrangement according to claim 1, is characterized in that: described direct current regulation circuit is respectively tilt detection circuit, voltage comparator circuit and cut-offing alarming circuit and provides+5V and+3.3V power line voltage;
Described tilt detection circuit adopts 3-axis acceleration chip U6 to build, the concrete model of chip is MMA7361,2 pin of 3-axis acceleration chip U6,3 pin, 4 pin are respectively the voltage output pin of X-axis, Y-axis and Z axis, it is respectively through electric capacity C10, C11, C12 ground connection, the 5 pin ground connection of 3-axis acceleration chip U6,6 pin connect+5V power line voltage, and through electric capacity C13 ground connection, 7 pin and 13 pin connect+3.3V power line voltage, 10 pin connect+3.3V power line voltage or ground connection, and 3 pin Y-axis voltages export also access voltage comparator circuit and carry out voltage compare;
Described voltage comparator circuit adopts voltage comparator chip U7 to build, and the concrete model of chip is LM393, and the 3 pin Y-axis voltages of 3-axis acceleration chip U6 export point two-way and access 2 pin of voltage comparator chip U7 and 5 pin respectively to provide voltage to be compared; The break 2 of+3.3V power line voltage access tri-gear dual-ganged switch K2 after resistance R11 and R12 connects dividing potential drop, then through contact heel 1 ground connection of tri-gear dual-ganged switch K2, the break 3,4, potential point UH that potential point UH between resistance R11 and R12 divides two-way to access tri-gear dual-ganged switch K2 respectively after connecting resistance R13, R14 respectively also has 3 pin of a road access voltage comparator chip U7 to provide high-order threshold voltage; + 3.3V power line voltage accesses the break 7 of tri-gear dual-ganged switch K2 after resistance R15 and R16 connects dividing potential drop, then through contact heel 8 ground connection of tri-gear dual-ganged switch K2, the break 6,5, potential point UH that potential point UL between resistance R15 and R16 divides two-way to access tri-gear dual-ganged switch K2 respectively after connecting resistance R17, R18 respectively also has 6 pin of a road access voltage comparator chip U7 to provide low level threshold voltage; 8 pin one tunnels of voltage comparator chip U7 connect+5V power line voltage, and another road connects 1 pin of voltage comparator chip U7 and the parallel outputs Uout of 7 pin through resistance R2, and parallel outputs Uout is connected to cut-offing alarming circuit;
Described cut-offing alarming circuit adopts buzzer phone U5 and relay K 1 to build, one end of+5V power line voltage access buzzer phone U5, the emitter of the other end access PNP triode Q2 of buzzer phone U5, the grounded collector of aerotron Q2, the two ends of buzzer phone U5 are parallel with the diode D5 of an Opposite direction connection, also be parallel with the coil of relay K 1, the normally closed contact of relay K 1 is serially connected in the handle signal wire (SW) of battery-driven car, the output voltage signal of 1 pin of voltage comparator chip U7 and the parallel outputs Uout of 7 pin divides two-way, the base stage of aerotron Q2 is loaded on after one tunnel series resistance R3, another road is through electric capacity C6 ground connection.
3. circuit arrangement according to claim 2, it is characterized in that :+5V the power line voltage of described direct current regulation circuit directly adopts+5V the power line voltage of electric vehicle rotary handle, or get+12V power line voltage from the controller of battery-driven car, convert through voltage stabilizing chip U1 ,+3.3V the power line voltage of described direct current regulation circuit adopts+5V power line voltage to convert through voltage stabilizing chip U4.
4. circuit arrangement according to claim 3, is characterized in that: described voltage stabilizing chip U1 adopts DC/DC converter control circuit chip MC34063, and described voltage stabilizing chip U4 adopts RT9161.
5. circuit arrangement according to claim 2, is characterized in that: described buzzer phone U5 uses active buzzer BUF1, and described relay K 1 uses T74 relay.
6. circuit arrangement according to claim 1, is characterized in that: described circuit arrangement is arranged on electric bicycle or be integrated in controller for electric vehicle with it.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410585505.9A CN104276049B (en) | 2014-10-28 | 2014-10-28 | Circuit device capable of automatically cutting off speed controller during lateral inclining or toppling over of electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410585505.9A CN104276049B (en) | 2014-10-28 | 2014-10-28 | Circuit device capable of automatically cutting off speed controller during lateral inclining or toppling over of electric vehicle |
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| CN104276049A true CN104276049A (en) | 2015-01-14 |
| CN104276049B CN104276049B (en) | 2017-01-25 |
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Cited By (12)
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| CN104880174A (en) * | 2015-06-04 | 2015-09-02 | 绍兴文理学院 | Laser digital display type level testing instrument |
| CN105398344A (en) * | 2015-12-15 | 2016-03-16 | 广西一定能电子科技有限公司 | Safety control device for electric vehicle |
| CN106168781A (en) * | 2016-08-05 | 2016-11-30 | 广西定能电子科技有限公司 | Safety control device of electric vehicle |
| CN106697124A (en) * | 2016-12-16 | 2017-05-24 | 广西南宁凯得利电子科技有限公司 | Electric bicycle with protective effect |
| WO2017124365A1 (en) * | 2016-01-20 | 2017-07-27 | 邓娟 | Method for information prompting during bicycle stand detection, and bicycle |
| WO2017124364A1 (en) * | 2016-01-20 | 2017-07-27 | 邓娟 | Data statistical method of bicycle stand detection technology, and bicycle |
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| WO2017124365A1 (en) * | 2016-01-20 | 2017-07-27 | 邓娟 | Method for information prompting during bicycle stand detection, and bicycle |
| WO2017124364A1 (en) * | 2016-01-20 | 2017-07-27 | 邓娟 | Data statistical method of bicycle stand detection technology, and bicycle |
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| CN107144259A (en) * | 2017-07-03 | 2017-09-08 | 上海励之恒科技有限公司 | A kind of house wall surface angle detection |
| CN107379970A (en) * | 2017-08-01 | 2017-11-24 | 西安科技大学 | The break prompt device and electric car that electric car is tilted or toppled over |
| CN109305047A (en) * | 2018-09-29 | 2019-02-05 | 淮海机电科技股份有限公司 | A kind of motor vehicle dual-motor drive dynamic control device |
| CN113415368A (en) * | 2021-07-30 | 2021-09-21 | 品上佳自行车(深圳)有限公司 | Electric bicycle battery installation mechanism with built-in self-clamping structure |
| CN114834572A (en) * | 2022-05-06 | 2022-08-02 | 永祺（中国）车业股份有限公司 | Intelligent Bluetooth ECU safety control equipment and control method for electric two-wheeled vehicle |
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