CN104276049B - 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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- CN104276049B CN104276049B CN201410585505.9A CN201410585505A CN104276049B CN 104276049 B CN104276049 B CN 104276049B CN 201410585505 A CN201410585505 A CN 201410585505A CN 104276049 B CN104276049 B CN 104276049B
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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 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 electric motor car lateral tilt
Or control speed regulator automatic dead circuit device when toppling over, belong to electric vehicle and bicycle innovation safety fittings application technology neck
Domain, electric motor car herein refers in particular to electric bicycle or battery-operated motor cycle.
Background technology
With social development, the jam of urban transportation is increasingly severe, flexibly light electronic with energy-conserving and environment-protective
Car increasingly gets the favour of people, and current electric motor car has become the important work of riding instead of walk that a lot of people are on and off duty and other are movable
Tool, the requirement also more and more higher of the security performance to electric motor car for the people.The species of electric motor car is a lot, but main type of drive is the same
, it is all the speed regulator controlling electric motor car by handle, then controller for electric vehicle is controlled by speed regulator, electricity is controlled by controller
The start and stop of motor-car motor and rotating speed, thus be driven to electric motor car.During electric motor car of riding, cause when having an accident
When electric motor car tilts or topples over, cyclist controls the hand of electric motor car speed control crank to tend not to unclamp in time, or even also can descend meaning
The hand-to-hand grip handle known, makes electric motor car remain in that when toppling over and drives the state even accelerating, so can lead to cyclist to electricity
Motor-car out of control it is easy to secondary injury is caused to cyclist.
Content of the invention
It is an object of the invention to controlling the electricity that speed regulator disconnects automatically when designing a kind of electric motor car lateral tilt or toppling over
Road device, by this circuit arrangement is installed additional on electric motor car, when electric motor car tilts or topples over, the connection of speed regulator and controller
Can automatically disconnect, thus stopping to the driving of electric motor car it is ensured that the safety of cyclist.
The concrete technical scheme that the present invention is taken is as follows:
A kind of electric motor car lateral tilt or speed regulator automatic dead circuit device when toppling over, is characterized in that: its circuit bag
Include direct current regulation circuit, tilt detection circuit, voltage comparator circuit and cut-offing alarming circuit, wherein direct current regulation circuit respectively and
Tilt detection circuit, voltage comparator circuit, cut-offing alarming circuit are connected, and provide constant voltage dc source, tilt detection electricity for it
Road is connected with voltage comparator circuit, and the predeterminated voltage of the voltage signal at angle of inclination and voltage comparator circuit is compared fortune
Calculate, voltage comparator circuit is connected with cut-offing alarming circuit, operation result input cut-offing alarming circuit is controlled it.
Described direct current regulation circuit is respectively tilt detection circuit, voltage comparator circuit and cut-offing alarming circuit offer+5v
With+3.3v supply voltage.
Described tilt detection circuit adopts 3-axis acceleration chip u6 to build, and chip concrete model is mma7361, and three axles add
2 pin of speed chip u6,3 pin, 4 pin be respectively x-axis, y-axis and z-axis voltage output pin, its respectively through electric capacity c10, c11,
C12 is grounded, the 5 pin ground connection of 3-axis acceleration chip u6, and 6 pin connect+5v supply voltage, and through electric capacity c13 ground connection, 7 pin and 13 pin
Connect+3.3v supply voltage, 10 pin connect+3.3v supply voltage or ground connection, 3 pin y-axis voltage outputs also access voltage comparator circuit and enter
Row voltage ratio is relatively.
Described voltage comparator circuit adopts voltage comparator chip u7 to build, and chip concrete model is lm393, and three axles accelerate
The 3 pin y-axis voltage outputs of degree chip u6 divide 2 pin that two-way is respectively connected to voltage comparator chip u7 and 5 pin to be compared to provide
Voltage；+ 3.3v supply voltage accesses the break of a tri-gear dual-ganged switch k2 after resistance r11 and r12 series connection partial pressure
2, then the movable contact 1 through tri-gear dual-ganged switch k2 be grounded, the potential point uh between resistance r11 and r12 divides two-way respectively
It is respectively connected to the break 3,4 of tri-gear dual-ganged switch k2, potential point uh also has a road to access voltage after connecting resistance r13, r14
3 pin of comparator chip u7 are to provide high-order threshold voltage；+ 3.3v supply voltage accesses after resistance r15 and r16 series connection partial pressure
The break 7 of tri-gear dual-ganged switch k2, then the movable contact 8 through tri-gear dual-ganged switch k2 be grounded, resistance r15 and
Potential point ul between r16 divides two-way to be respectively connected to the break of tri-gear dual-ganged switch k2 respectively after connecting resistance r17, r18
6th, 5, potential point uh also have a road to access 6 pin of voltage comparator chip u7 to provide low level threshold voltage；Voltage comparator core
8 pin one tunnel of piece u7 connects+5v supply voltage, and another road connects 1 pin of voltage comparator chip u7 and the parallel connection of 7 pin through resistance r2
Output end uout, parallel outputs uout connects to cut-offing alarming circuit.
Described cut-offing alarming circuit adopts buzzer u5 and relay k1 to build, and buzzer u5 uses active buzzer
Buf1, relay k1 use t74 relay, and+5v supply voltage accesses one end of buzzer u5, and the other end of buzzer u5 accesses
The emitter stage of pnp triode q2, the grounded collector of triode q2, the two ends of buzzer u5 are parallel with the two of an Opposite direction connection
Level pipe d5, is also parallel with the coil of relay k1, the normally-closed contact of relay k1 is serially connected in the handle holding wire of electric motor car, electricity
The output voltage signal of the parallel outputs uout of 1 pin of pressure comparator chip u7 and 7 pin divides two-way, after road series resistance r3
It is loaded onto the base stage of triode q2, another road is grounded through electric capacity c6.
+ 5v the supply voltage of described direct current regulation circuit can directly adopt the+5v supply voltage of electric vehicle rotary handle, also may be used
To take+12v supply voltage from the controller of electric motor car, through the conversion of voltage stabilizing chip u1, voltage stabilizing chip u1 can adopt dc/dc
Converter control circuit chip mc34063.+ 3.3v the supply voltage of described direct current regulation circuit is using+5v supply voltage through steady
Pressure chip u4 conversion, voltage stabilizing chip u4 can adopt rt9161.
The present invention passes through using above-mentioned technical scheme, by this circuit arrangement concatenation electric vehicle rotary on holding wire, i.e. phase
When in connecting between speed regulator for electric vehicle and controller, after electric switch energising is opened in electric motor car, when electric motor car is static or
During traveling, when this circuit arrangement real-time detection to electric motor car is tilted more than to the left or to the right equal to 45 °, i.e. electric motor car reaches
To dangerous inclined degree or the precarious position toppled over, now this circuit arrangement disconnects speed regulator automatically, opens and reports to the police, it is right to stop
Electric motor car drives；If not reaching dangerous inclined degree, do not turn off speed regulator, electric motor car normally travel.Present invention achieves it is electric
Motor-car danger automatically powers off, when tilting and toppling over, the function of stopping driving, and increased the security of electric motor car.
Compared to the control mode of roll-over power interruption switch mechanical on market, stability of the present invention is high, is not subject to gravity side
Affect to the acceleration on horizontal direct of travel, erroneous judgement and fault rate can be reduced, increase the safety in utilization of electric motor car.
The present invention may be mounted at electric bicycle it is also possible to be integrated in controller for electric vehicle, simple installation, cost
Low, practical.
Brief description
Fig. 1 is the module connection figure of circuit arrangement of the present invention, is divided into this circuit arrangement inside dotted line frame.
Fig. 2 is embodied as circuit diagram for circuit arrangement of the present invention.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, its circuit of the circuit arrangement of the present invention includes direct current regulation circuit, tilt detection circuit, voltage ratio
Compared with circuit and cut-offing alarming circuit, wherein direct current regulation circuit respectively with tilt detection circuit, voltage comparator circuit, power alarm
Circuit is connected, and provides constant voltage dc source for it, tilt detection circuit is connected with voltage comparator circuit, by angle of inclination
Voltage signal is compared computing with the predeterminated voltage of voltage comparator circuit, and voltage comparator circuit is connected with cut-offing alarming circuit
Connect, operation result input cut-offing alarming circuit is controlled it.
Fig. 2 is one of the circuit arrangement of the present invention and is embodied as circuit diagram, as shown in Fig. 2 the operation principle of its circuit
As follows:
Direct current regulation circuit is respectively tilt detection circuit, voltage comparator circuit and cut-offing alarming circuit provide+5v and+
3.3v supply voltage.+ 5v the supply voltage of direct current regulation circuit adopts the+12v supply voltage of controller for electric vehicle through voltage stabilizing core
Piece u1 converts.Voltage stabilizing chip u1 adopts dc/dc converter control circuit chip mc34063.The employing of+3.3v supply voltage+
5v supply voltage converts through voltage stabilizing chip u4, and voltage stabilizing chip u4 adopts rt9161.
Tilt detection circuit adopts 3-axis acceleration chip u6 to build, and chip concrete model is mma7361,3-axis acceleration
3 pin of sensor u6 are y-axis voltage output pin, export analog voltage.The output area of 0 ° of y-axis～180 ° of turnover voltages is
0.99v～2.69v, when horizontal positioned (90 °), y-axis is output as 1.65v(theoretical value), when being tilted to the left, voltage reduces, to
During right bank, voltage increases.Y-axis voltage output pin accesses voltage comparator circuit and carries out voltage ratio relatively as power supply to be measured.
Voltage comparator circuit adopts voltage comparator chip u7 to build, and chip concrete model is lm393,3-axis acceleration core
The 3 pin y-axis voltage outputs of piece u6 divide 2 pin that two-way is respectively connected to voltage comparator chip u7 and 5 pin to provide voltage to be compared；
+ 3.3v supply voltage accesses tri-gear dual-ganged switch k2 ground connection, resistance r11 and r12 after resistance r11 and r12 series connection partial pressure
Between potential point uh access 3 pin of voltage comparator chip u7 providing high-order threshold voltage, sets high position threshold voltage as
2.48v.+ 3.3v supply voltage accesses tri-gear dual-ganged switch k2 ground connection, resistance r15 after resistance r15 and r16 series connection partial pressure
Potential point ul and r16 between accesses 6 pin of voltage comparator chip u7 to provide low level threshold voltage, sets low level thresholding electricity
Press as 1.1v.When 2 pin of voltage comparator chip u7 and voltage to be compared (the i.e. 3 pin y-axis of 3-axis acceleration chip u6 of 5 pin
Voltage) be located at 3 pin high-order threshold voltage 2.48v and the low level threshold voltage 1.1v of 6 pin between when, voltage comparator chip
The parallel outputs uout of 1 pin of u7 and 7 pin connects pull-up resistor r2, exports high level+5v, when voltage to be compared exceeds high-order door
When outside the scope (1.1v～2.48v) of voltage limit and low level threshold voltage, 1 pin of voltage comparator or 7 pin output ends can be sent out
Raw upset is so as to parallel outputs uout exports low level 0v.In addition to the model of high-low-position threshold voltage can be expanded or shunk
Enclose, two-way divider resistance r13, r14 can be set at potential point uh more and connect to tri-gear dual-ganged switch k2, in potential point ul
Place also more to be set two-way divider resistance r17, r18 and connects to tri-gear dual-ganged switch k2, set the parameter of each resistance it is possible to
Adjust the high-low-position threshold voltage scope of three gears by adjusting tri-gear dual-ganged switch k2.
Cut-offing alarming circuit adopts buzzer u5 and relay k1 to build, and buzzer u5 uses active buzzer buf1, continues
Electrical equipment u5 uses t74 relay, and the normally-closed contact of relay k1 is serially connected in the handle holding wire of electric motor car, voltage comparator core
The output voltage signal of the parallel outputs uout of 1 pin of piece u7 and 7 pin is loaded into the base of triode q2 after electric capacity c6 filtering
Pole controls conducting and the cut-off of triode, and triode adopts pnp triode 8550.Controlled by the break-make controlling triode q2
The coil of buzzer u5 processed and relay k1 whether electric, thus controlling warning and power-off.
This device is installed to electric bicycle or is integrated in controller for electric vehicle when using, and takes from controller
Electricity.Keep electric motor car upright during installation, the 3-axis acceleration chip u6 in this circuit arrangement is face-up, z-axis vertically upward,
Y-axis horizontal positioned vertical electric car vehicle body.After electric bicycle energising, this circuit arrangement is started working, and works as electric bicycle
When travelling or be static, tilt detection circuit real-time detection electric bicycle vehicle body lateral tilt degree, from 3-axis acceleration core
The voltage signal of the y-axis voltage output pin exporting change of piece u6, is processed to voltage comparator circuit.When electric vehicle body inclines to the left
When being tiltedly less than 45 ° or being tilted to the right less than 45 °, the y-axis voltage output pin output voltage values of tilt detection circuit are in 1.1v
In the range of～2.48v, without departing from the high-low threshold voltage range of voltage comparator circuit setting, the voltage ratio of voltage comparator circuit
Export high level compared with output end, the base stage of the triode q2 of cut-offing alarming circuit receives high level and is not turned on, then relay k1
Normally closed contact point is not turned off, and handle holding wire keeps connecting, and speed regulator keeps being connected with controller, and buzzer u5 does not report to the police,
Electric bicycle normally travel；When electric vehicle body is tilted to the left more than 45 ° or is tilted to the right more than 45 °, or topple over
When, the y-axis voltage output pin output voltage values of tilt detection circuit exceed 1.1v～2.48v scope, more electric beyond voltage ratio
The high-low threshold voltage range that road sets, the voltage ratio of voltage comparator circuit exports low level, cut-offing alarming circuit compared with output end
The base stage of triode q2 receive low level conducting, then relay k1 adhesive, its normally closed contact point disconnects, and handle holding wire breaks
Open, speed regulator is disconnected with controller, electric bicycle stops driving, simultaneously the prompting of buzzer u5 power alarm sound, thus
Reach electric motor car and topple over danger and be automatically stopped and drive the purpose advanced, prevent that electric motor car is out of control to cause secondary injury to cyclist,
Improve the security performance of electric motor car.When electric motor car recovers to attention, this device can recover between speed regulator and controller automatically
Connection, so that electric motor car is normally used.
Tri-gear dual-ganged switch k2 in this circuit arrangement can adjust the high-low threshold voltage model of voltage comparator circuit
Enclose, you can change the trigger angle of inclined degree, first grade is the angle of inclination given tacit consent to, and second gear is to reduce angle of inclination, the
Third gear is to increase angle of inclination, can be adjusted according to actual conditions.
This circuit arrangement uses digital obliquity to sense, and stability is high, and only judges about vehicle body plumb line direction
Inclined degree, i.e. the tilt variation of horizontal y-axis, and do not affected by other axis directions, therefore it is not subject to electric motor car to travel process
Moderately gusty air and the impact of vibrations, have shock resistance, and compared to the control mode of mechanical roll-over power interruption switch, this mode is stable
Property reliability higher, can reduce erroneous judgement and fault rate, increase electric motor car safety in utilization.
Claims (5)
1. a kind of electric motor car lateral tilt or speed regulator automatic dead circuit device when toppling over, is characterized in that: its circuit includes
Direct current regulation circuit, tilt detection circuit, voltage comparator circuit and cut-offing alarming circuit, wherein direct current regulation circuit respectively and incline
Tiltedly testing circuit, voltage comparator circuit, cut-offing alarming circuit are connected, and provide constant voltage dc source, tilt detection circuit for it
It is connected with voltage comparator circuit, the predeterminated voltage of the voltage signal at angle of inclination and voltage comparator circuit is compared fortune
Calculate, voltage comparator circuit is connected with cut-offing alarming circuit, operation result input cut-offing alarming circuit is controlled it；
Described direct current regulation circuit is respectively tilt detection circuit, voltage comparator circuit and cut-offing alarming circuit provide+5v and+
3.3v supply voltage；
Described tilt detection circuit adopts 3-axis acceleration chip u6 to build, and chip concrete model is mma7361,3-axis acceleration
2 pin of chip u6,3 pin, 4 pin are respectively the voltage output pin of x-axis, y-axis and z-axis, and it connects through electric capacity c10, c11, c12 respectively
Ground, the 5 pin ground connection of 3-axis acceleration chip u6,6 pin connect+5v supply voltage, and through electric capacity c13 ground connection, and 7 pin and 13 pin connect+
3.3v supply voltage, 10 pin connect+3.3v supply voltage or ground connection, and 3 pin y-axis voltage outputs also access voltage comparator circuit and carry out electricity
Pressure ratio is relatively；
Described voltage comparator circuit adopts voltage comparator chip u7 to build, and chip concrete model is lm393,3-axis acceleration core
The 3 pin y-axis voltage outputs of piece u6 divide 2 pin that two-way is respectively connected to voltage comparator chip u7 and 5 pin to provide voltage to be compared；
+ 3.3v supply voltage accesses the break 2 of a tri-gear dual-ganged switch k2 after resistance r11 and r12 series connection partial pressure, then
Movable contact 1 through tri-gear dual-ganged switch k2 is grounded, and the potential point uh between resistance r11 and r12 divides two-way connecting resistance respectively
It is respectively connected to the break 3,4 of tri-gear dual-ganged switch k2, potential point uh also has a road to access voltage comparator after r13, r14
3 pin of chip u7 are to provide high-order threshold voltage；+ 3.3v supply voltage accesses third gear position after resistance r15 and r16 series connection partial pressure
Double-linkage switchs the break 7 of k2, and then the movable contact 8 through tri-gear dual-ganged switch k2 is grounded, between resistance r15 and r16
Potential point ul divide two-way to be respectively connected to the break 6,5 of tri-gear dual-ganged switch k2, current potential respectively after connecting resistance r17, r18
Point uh also has a road to access 6 pin of voltage comparator chip u7 to provide low level threshold voltage；8 pin of voltage comparator chip u7
One tunnel connects+5v supply voltage, and another road connects 1 pin of voltage comparator chip u7 and the parallel outputs of 7 pin through resistance r2
Uout, parallel outputs uout connects to cut-offing alarming circuit；
Described cut-offing alarming circuit adopts buzzer u5 and relay k1 to build, and+5v supply voltage accesses one end of buzzer u5,
The other end of buzzer u5 accesses the emitter stage of pnp triode q2, the grounded collector of triode q2, and the two ends of buzzer u5 are simultaneously
It is associated with the diode d5 of an Opposite direction connection, is also parallel with the coil of relay k1, the normally-closed contact of relay k1 is serially connected in electricity
In the handle holding wire of motor-car, the output voltage signal of 1 pin of voltage comparator chip u7 and the parallel outputs uout of 7 pin divides
Two-way, is loaded onto the base stage of triode q2 after road series resistance r3, another road is grounded through electric capacity c6.
2. circuit arrangement according to claim 1, is characterized in that :+5v the supply voltage of described direct current regulation circuit is direct
Using+5v the supply voltage of electric vehicle rotary handle, or take+12v supply voltage from the controller of electric motor car, through the conversion of voltage stabilizing chip u1
,+3.3v supply voltage employing+5v the supply voltage of described direct current regulation circuit is through the conversion of voltage stabilizing chip u4.
3. circuit arrangement according to claim 2, is characterized in that: described voltage stabilizing chip u1 adopts dc/dc convertor controls
Circuit chip mc34063, described voltage stabilizing chip u4 adopts rt9161.
4. circuit arrangement according to claim 1, is characterized in that: described buzzer u5 uses active buzzer buf1, institute
State relay k1 and use t74 relay.
5. circuit arrangement according to claim 1, is characterized in that: described circuit arrangement is arranged on electric bicycle or collection
Become in controller for electric vehicle.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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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| CN104276049A CN104276049A (en) | 2015-01-14 |
| CN104276049B true CN104276049B (en) | 2017-01-25 |
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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 |
| CN105398344B (en) * | 2015-12-15 | 2017-10-24 | 广西一定能电子科技有限公司 | A kind of safety control device of electric vehicle |
| WO2017124364A1 (en) * | 2016-01-20 | 2017-07-27 | 邓娟 | Data statistical method of bicycle stand detection technology, and bicycle |
| WO2017124365A1 (en) * | 2016-01-20 | 2017-07-27 | 邓娟 | Method for information prompting during bicycle stand detection, and bicycle |
| CN106168781B (en) * | 2016-08-05 | 2019-03-15 | 广西一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 |
| JP2019003262A (en) * | 2017-06-12 | 2019-01-10 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Processing unit and processing method for collision warning system, collision warning system, and motor cycle |
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| 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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| JP3975389B2 (en) * | 2000-04-27 | 2007-09-12 | 東洋電装株式会社 | Tilt detection device |
| CN201026804Y (en) * | 2007-04-03 | 2008-02-27 | 姚柏泉 | Motor braking device for lean of electric bicycle |
| JP5251651B2 (en) * | 2009-03-23 | 2013-07-31 | 富士通株式会社 | Wheel travel device resistant to sensor failure |
| CN102490615A (en) * | 2011-11-28 | 2012-06-13 | 金龙联合汽车工业（苏州）有限公司 | High-voltage safety protection device for electrodynamic force automobile |
| CN202661066U (en) * | 2012-07-17 | 2013-01-09 | 长安大学 | Automobile altitude early-warning device based on accelerometer and gyroscope |
| TWM472656U (en) * | 2013-05-24 | 2014-02-21 | hong-wen Li | Toppling alarm device for motorcycle |
| CN203358359U (en) * | 2013-08-01 | 2013-12-25 | 重庆斯凯力科技有限公司 | Dumping flameout switch for automobile vehicle |
| CN204077391U (en) * | 2014-10-28 | 2015-01-07 | 广西一定能电子科技有限公司 | Battery-driven car lateral inclination or governor automatic dead circuit device when toppling over |
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