CN105196963A - Device and method for electric vehicle antitheft based on relay - Google Patents
Device and method for electric vehicle antitheft based on relay Download PDFInfo
- Publication number
- CN105196963A CN105196963A CN201510623732.0A CN201510623732A CN105196963A CN 105196963 A CN105196963 A CN 105196963A CN 201510623732 A CN201510623732 A CN 201510623732A CN 105196963 A CN105196963 A CN 105196963A
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- phase
- relay
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- electric vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
- B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor
- B60R25/045—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor by limiting or cutting the electrical supply to the propulsion unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/40—Features of the power supply for the anti-theft system, e.g. anti-theft batteries, back-up power supply or means to save battery power
- B60R25/403—Power supply in the vehicle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a device and method for electric vehicle antitheft based on a relay. The device for electric vehicle antitheft comprises a relay coil and three relay normally-closed contacts connected with the relay coil. The relay coil is in parallel connection with a storage battery, the ends of the three relay normally-closed contacts are correspondingly connected with a phase A, a phase B and a phase C of a three-phase winding respectively, the other ends of the three relay normally-closed contacts are in ground connection, and the phase A, the phase B and the phase C of the three-phase winding are in ground connection respectively through the three relay normally-closed contacts. The invention further provides a method for applying the device for electric vehicle antitheft. The method comprises the steps that when a connecting line of the storage battery is cut off, the relay coil is powered down, the three relay normally-closed contacts are in a closed state, the three-phase winding of a stator of a brushless direct current motor is short-circuited through the three relay normally-closed contacts, a rotor of the brushless direct current motor cannot rotate, wheels of an electric vehicle are locked, and the goal of electric vehicle antitheft is achieved.
Description
Technical field
The invention belongs to technical field of electric control, be specifically related to a kind of storage battery based on relay stolen after the anti-joyride device of battery-driven car that still can act on and method.
Background technology
Along with the development of society and the continuous increase of the fuel oil vehicle, the natural resourcess such as the petroleum fuel faced by the mankind are not enough and fuel emission causes the problem of global warming day by day to highlight.So the traffic of hybrid power or pure power is total to the life that transportation means enters into people gradually in this context, battery-driven car arises at the historic moment.Battery-driven car, because having environmental protection, fast and easily feature, is well received by consumers.
Along with the increase of battery-driven car quantity, the stolen quantity of battery-driven car also increases year by year, and electric vehicle anti-theft problem is abnormal severe.The implementation that traditional electrical anti-theft device for motor vehicle adopts installs lock and safety alarm, and monitor the battery-driven car mobile status under the non-input condition of Electrical key start signal by design micro controller system peripheral sensors circuit, realize soft antitheft to send alerting signal at the stolen seasonal loudspeaker of battery-driven car, the technical scheme of a kind of antitheft alarmer for electric bicycle that such as publication number CN2590837 provides.But this anti-theft control device easily produces " erroneous judgement ", also warning can be caused when pedestrian touches because of carelessness or staff arranges parking stall, have impact on living environment, and above-mentioned anti-joyride device needs electric vehicle accumulator to provide the electric energy of normal need of work, once electric vehicle accumulator cable is cut off, these anti-joyride devices will lose electric vehicle anti-theft effect.Nowadays occurred that electric vehicle accumulator still can act on anti-joyride device after stolen, a kind of intelligent electric motor car accumulator anti-theft device that such as publication number CN104724212A provides, although its serve under certain condition storage battery stolen after the effect that still can act on, but this device needs additional external power supply and control circuit thereof, this considerably increases system hardware and software cost.Therefore, design a kind of reasonable, easy electric vehicle anti-theft device and method, can better people's living environment, reduce the stolen rate of battery-driven car, have great importance.
Summary of the invention
Object of the present invention be intended to high for traditional electrical motor-car security method False Rate, affect living environment, thief still can use power of enforcement steal car and power down cannot be antitheft etc. shortcoming, the anti-theft control device of the battery-driven car of a kind of science provided and method.
In order to achieve the above object, the technical solution used in the present invention is:
A kind of electric vehicle anti-theft device based on relay, described battery-driven car comprises main body of vehicle frame and is arranged on front vehicle wheel on main body of vehicle frame, rear wheel, storage battery and is arranged on the brshless DC motor of rear wheel position, described brshless DC motor is powered by described storage battery, and its stator is formed primarily of A, B, C three-phase windings; Described electric vehicle anti-theft device comprises relay coil and connects three relay normally closed contacts of relay coil, described relay coil is in parallel with described storage battery, respective one end of described three relay normally closed contacts is connected respectively A phase, B phase, the C phase of described three-phase windings, the equal ground connection of the respective other end, the A phase of described three-phase windings, B phase, C phase are respectively by described three relay normally closed contact ground connection.
Further, described relay coil is voltage-type relay coil, and two relay normally closed contacts are voltage-type relay normally closed contact.
Further, the rated voltage of described relay coil is more than or equal to the rated voltage of described storage battery.
Further, described battery-driven car also comprises three-phase bridge type converter, described three-phase bridge type converter is arranged between relay coil and two relay normally closed contacts, and in parallel with described relay coil, the three-phase windings of brushless DC motor stator is corresponding with the three-phase output end of three-phase bridge type converter respectively to be connected.
Further, described three-phase bridge type converter comprises three transistor legs all in parallel with described relay coil, every bar transistor legs is formed primarily of the metal-oxide-semiconductor of two series connection, and the series connection node of two metal-oxide-semiconductor series connection is a phase output terminal of three-phase bridge type converter.
Further, described main body of vehicle frame is provided with governor handle, the controller connecting governor handle and brshless DC motor is provided with in described main body of vehicle frame, rotating governor handle can allow controller different magnitudes of voltage be detected, controller is according to magnitude of voltage size, storage battery described in analog regulation flows to the voltage levels of brshless DC motor, to control the rotating speed of the rotor of brshless DC motor.
The present invention also provides a kind of method applying above-mentioned electric vehicle anti-theft device, comprises the following steps:
(1) when the wiring of described storage battery is normal, relay coil obtains electric, three relay normally closed contacts are in off-state, brshless DC motor obtains electric from battery connection, the three-phase windings of brushless DC motor stator connects normal, the rotor of brshless DC motor can rotate, and the wheel of battery-driven car can rotate under the drive of rotor;
(2) when the wiring of described storage battery is cut off, described relay coil power down, three relay normally closed contacts are in closure state, brushless DC motor stator three-phase windings is shorted by three relay normally closed contacts, the rotor of brshless DC motor can not rotate, and the wheel of battery-driven car is by locking.
Further, when the wiring of described storage battery is normal, the key of described battery-driven car is inserted in the key hole of main body of vehicle frame or to be extracted by from the key hole of main body of vehicle frame.Compared with prior art, beneficial effect of the present invention is mainly:
1, technical scheme of the present invention, without the need to additionally adding antitheft battery and audible alarm unit, structure is simple, and cost is low;
2, technical scheme of the present invention, use the three-phase windings of relay coil and a termination brushless DC motor stator instead, three relay normally closed contacts of one end ground connection carry out alternative traditional micro controller system and coordinate sensor and audible alarm unit, thus reduce flase alarm situation;
3, technical scheme of the present invention, even if battery connection is cut off, still can act on after storage battery is stolen, and noiselessness affects, and direct locking Electricmotor car wheel, greatly reduce the stolen rate of battery-driven car.
Accompanying drawing explanation
Fig. 1 is the electric vehicle anti-theft device constructional drawing based on relay of the specific embodiment of the invention.
Detailed description of the invention
The electric vehicle anti-theft device based on relay that still can act on after stolen to a kind of storage battery of the present invention below in conjunction with accompanying drawing and method are described in further detail.
Please refer to Fig. 1, Figure 1 shows that electric vehicle anti-theft device constructional drawing of the present invention, electric vehicle anti-theft device of the present invention can be arranged on the battery-driven car of existing any form, these battery-driven cars have following basic circuit structure: main body of vehicle frame and be arranged on front vehicle wheel on main body of vehicle frame, rear wheel, storage battery 1 and be arranged on the brshless DC motor 4 of rear wheel position, and the stator of described brshless DC motor 4 is formed primarily of A, B, C three-phase windings.Electric vehicle anti-theft device of the present invention comprises relay coil 2 and connects three relay normally closed contacts of described relay coil 2: relay normally closed contact 21, relay normally closed contact 22, relay normally closed contact 23.Wherein, described storage battery 1 is in parallel with relay coil 2, respective one end of described three relay normally closed contacts 21,22,23 is connected respectively A phase, B phase, the C phase of described three-phase windings, the equal ground connection of the respective other end, the A of described brshless DC motor 4 three-phase stator winding communicated relay normally closed contact 21 ground connection, B communicated relay normally closed contact 22 ground connection, and C communicated relay normally closed contact 23 ground connection.
In the present embodiment, relay coil 2 is preferably voltage-type relay coil, and its rated voltage is more than or equal to the rated voltage of described storage battery, when being cut off to make battery connection, automatically disconnects the connection of brushless direct current motor and storage battery.Two relay normally closed contacts 21,22 are voltage-type relay normally closed contact.
The battery-driven car of the present embodiment also comprises three-phase bridge type converter 3, and described storage battery 1, relay coil 2 and three-phase bridge type converter 3 are in parallel successively.Three-phase bridge type converter 3 comprises three transistor legs all in parallel with described relay coil, and every bar transistor legs is formed primarily of the metal-oxide-semiconductor of two series connection, and the series connection node of two metal-oxide-semiconductor series connection is a phase output terminal of three-phase bridge type converter.In Fig. 1, three-phase bridge type converter 3 is made up of MOS1 to MOS6 six transistors, MOS1, MOS4 series connection (namely the source electrode of MOS1 is connected with the drain electrode of MOS4) forms first transistor legs, MOS3, MOS6 series connection (namely the source electrode of MOS3 is connected with the drain electrode of MOS6) forms second transistor legs, MOS5, MOS2 series connection (namely the source electrode of MOS5 is connected with the drain electrode of MOS2) forms the 3rd transistor legs, MOS1, MOS3, the drain electrode of MOS5 connects relay coil one end in parallel with storage battery respectively, MOS4, MOS6, the source electrode of MOS2 connects the relay coil other end in parallel with storage battery respectively, thus form three parallel transistor branch roads.The series connection node (i.e. the junction of the source electrode of MOS1 and the drain electrode of MOS4) of MOS1 and MOS4 forms first phase output terminal of three-phase bridge type converter 3, and this phase output terminal is connected with the A in the three-phase windings of the stator of brshless DC motor 4, the series connection node (i.e. the junction of the source electrode of MOS3 and the drain electrode of MOS6) of MOS3 and MOS6 forms second phase output terminal of three-phase bridge type converter 3, and this phase output terminal is connected with the B in the three-phase windings of the stator of brshless DC motor 4, the series connection node (i.e. the junction of the source electrode of MOS5 and the drain electrode of MOS2) of MOS5 and MOS2 forms the 3rd phase output terminal of three-phase bridge type converter 3, and this phase output terminal is connected with the C in the three-phase windings of the stator of brshless DC motor 4, relay normally closed contact 21 1 end is connected in the wiring between first phase output terminal of three-phase bridge type converter 3 with described brshless DC motor 4 three-phase stator winding A phase, other end ground connection, relay normally closed contact 22 1 end is connected in the wiring between second phase output terminal of three-phase bridge type converter 3 with described brshless DC motor 4 three-phase stator winding B phase, other end ground connection, relay normally closed contact 23 1 end is connected in the wiring between the 3rd phase output terminal of three-phase bridge type converter 3 with described brshless DC motor 4 three-phase stator winding C phase, other end ground connection, whether the car key regardless of battery-driven car is pulled up, as long as the wiring of the storage battery of battery-driven car 1 is normal, three relay normally closed contacts 21, 22, 23 are all in off-state, the three-phase windings of brshless DC motor 4 stator connects normal, the rotor of brshless DC motor 1 just can rotate, the wheel of battery-driven car can rotate under the drive of rotor, once the wiring of storage battery 1 is cut off, three relay normally closed contacts 21, 22, 23 all can switch to closure state, the three-phase windings AB of brushless DC motor stator is alternate, BC is alternate, AC is alternate all by short circuit, the rotor of brshless DC motor 1 can not rotate, the wheel of battery-driven car is by locking.
In addition, the main body of vehicle frame of the battery-driven car of the present embodiment is provided with governor handle and key hole, the controller connecting governor handle and brshless DC motor is provided with in described main body of vehicle frame, rotating governor handle can allow controller different magnitudes of voltage be detected, controller is according to magnitude of voltage size, storage battery described in analog regulation flows to the voltage levels of brshless DC motor, to control the rotating speed of the rotor of brshless DC motor.Have contact switch in key hole, when after insertion key, rotate key and trigger contact switch, now can connect controller and storage battery, storage battery powers on to controller, and controller is started working.
Therefore, electric vehicle anti-theft device of the present invention, use relay coil and three relay normally closed contacts instead to carry out alternative traditional micro controller system and coordinate sensor and audible alarm unit, the corresponding of three-phase windings of one termination brushless DC motor stator of each relay normally closed contact is held mutually, one end ground connection, when battery connection is cut off, the three-phase windings short circuit of brushless direct current motor can be made, without the need to additionally adding antitheft battery, and can audible alarm unit be omitted, structure is simple, cost is low, flase alarm situation can be reduced, simultaneously can be compatible with existing warning device, even if battery connection is cut off, still can act on after storage battery is stolen, noiselessness affects, and directly locking Electricmotor car wheel, greatly reduce the stolen rate of battery-driven car.
The present invention also provides a kind of method applying above-mentioned electric vehicle anti-theft device, and composition graphs 1 describes the theft preventing method applying electric vehicle anti-theft device of the present invention in detail, comprises the following steps:
(1) after user uses battery-driven car to complete, stop battery-driven car from pulling up key, now, the wiring of storage battery 1 is still normal, and relay coil 2 keeps obtaining electricity condition, three relay normally closed contacts 21,22,23 remain open state, brshless DC motor 4 keeps electric from the wiring of storage battery 1, and the three-phase windings of the stator of brshless DC motor 4 is earth-free, connects normal, the rotor of brshless DC motor 4 can rotate, and the wheel of battery-driven car can rotate under the drive of rotor;
(2) wiring of electric vehicle accumulator 1 is cut off by thief, relay coil 2 power-off, and relay normally closed contact 21,22,23 closes;
(3) A, B, C phase of the three-phase windings of brshless DC motor 4 stator is respectively by relay normally closed contact 21,22,23 ground connection, the three-phase windings AB of brushless DC motor stator is alternate, BC is alternate, AC is alternate all by short circuit, the rotor of brshless DC motor 1 can not rotate, the wheel of battery-driven car, by locking, reaches battery connection and still can be realized the effect of electric vehicle anti-theft after cutting off.
Method of the present invention, can after battery connection be cut off, the wheel of locked battery-driven car, makes it be unfavorable for mobile, greatly reduces the stolen rate of battery-driven car.
Claims (8)
1. the electric vehicle anti-theft device based on relay, described battery-driven car comprises main body of vehicle frame and is arranged on front vehicle wheel on main body of vehicle frame, rear wheel, storage battery and is arranged on the brshless DC motor of rear wheel position, described brshless DC motor is powered by described storage battery, and its stator is made up of A, B, C three-phase windings; It is characterized in that, described electric vehicle anti-theft device comprises relay coil and connects three relay normally closed contacts of relay coil, described relay coil is in parallel with described storage battery, respective one end of described three relay normally closed contacts is connected respectively A phase, B phase, the C phase of described three-phase windings, the equal ground connection of the respective other end, the A phase of described three-phase windings, B phase, C phase are respectively by described three relay normally closed contact ground connection.
2. electric vehicle anti-theft device as claimed in claim 1, it is characterized in that, described relay coil is voltage-type relay coil, and three relay normally closed contacts are voltage-type relay normally closed contact.
3. electric vehicle anti-theft device as claimed in claim 1 or 2, it is characterized in that, the rated voltage of described relay coil is more than or equal to the rated voltage of described storage battery.
4. electric vehicle anti-theft device as claimed in claim 1, it is characterized in that, described battery-driven car also comprises three-phase bridge type converter, described three-phase bridge type converter is arranged between relay coil and three each and every one relay normally closed contacts, and in parallel with described relay coil, the three-phase windings of brushless DC motor stator is corresponding with the three-phase output end of three-phase bridge type converter respectively to be connected.
5. electric vehicle anti-theft device as claimed in claim 4, it is characterized in that, described three-phase bridge type converter comprises three transistor legs all in parallel with described relay coil, every bar transistor legs is formed primarily of the metal-oxide-semiconductor of two series connection, and the series connection node of two metal-oxide-semiconductor series connection is a phase output terminal of three-phase bridge type converter.
6. electric vehicle anti-theft device as claimed in claim 1, it is characterized in that, described main body of vehicle frame is provided with governor handle, the controller connecting governor handle and brshless DC motor is provided with in described main body of vehicle frame, rotating governor handle can allow controller different magnitudes of voltage be detected, controller is according to magnitude of voltage size, and storage battery described in analog regulation flows to the voltage levels of brshless DC motor, to control the rotating speed of the rotor of brshless DC motor.
7. application rights requires a method for the electric vehicle anti-theft device according to any one of 1 to 6, it is characterized in that, comprises the following steps:
(1) when the wiring of described storage battery is normal, relay coil obtains electric, three relay normally closed contacts are in off-state, brshless DC motor obtains electric from battery connection, the three-phase windings of brushless DC motor stator connects normal, the rotor of brshless DC motor can rotate, and the wheel of battery-driven car can rotate under the drive of rotor;
(2) when the wiring of described storage battery is cut off, described relay coil power down, three relay normally closed contacts are in closure state, brushless DC motor stator three-phase windings is shorted by three relay normally closed contacts, the rotor of brshless DC motor can not rotate, and the wheel of battery-driven car is by locking.
8. method as claimed in claim 7, it is characterized in that, when the wiring of described storage battery is normal, the key of described battery-driven car is inserted in the key hole of main body of vehicle frame or to be extracted by from the key hole of main body of vehicle frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510623732.0A CN105196963A (en) | 2015-09-25 | 2015-09-25 | Device and method for electric vehicle antitheft based on relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510623732.0A CN105196963A (en) | 2015-09-25 | 2015-09-25 | Device and method for electric vehicle antitheft based on relay |
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| Publication Number | Publication Date |
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| CN105196963A true CN105196963A (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510623732.0A Pending CN105196963A (en) | 2015-09-25 | 2015-09-25 | Device and method for electric vehicle antitheft based on relay |
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| Country | Link |
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| CN (1) | CN105196963A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107512242A (en) * | 2017-07-11 | 2017-12-26 | 贵港市瑞成科技有限公司 | A kind of anti-anti-theft system of electromotor car for cutting power line |
| JP6342043B1 (en) * | 2017-06-20 | 2018-06-13 | 三菱電機株式会社 | Electric motor control apparatus and electric motor control method |
| CN108734815A (en) * | 2017-04-21 | 2018-11-02 | 胡洪平 | A kind of intelligent brushless wheel hub motor and unlocking method |
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| CN101209703A (en) * | 2006-12-29 | 2008-07-02 | 杨秀成 | Electric vehicle with and without battery turning-off electric power lock electric motor rotation resistant anti-theft alarm |
| CN201268240Y (en) * | 2008-08-18 | 2009-07-08 | 浙江特力电机有限公司 | Anti-theft control device of electric vehicle |
| CN204250221U (en) * | 2014-09-25 | 2015-04-08 | 成都锐奕信息技术有限公司 | RF-type storage battery car guard against theft and alarm system |
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2015
- 2015-09-25 CN CN201510623732.0A patent/CN105196963A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209703A (en) * | 2006-12-29 | 2008-07-02 | 杨秀成 | Electric vehicle with and without battery turning-off electric power lock electric motor rotation resistant anti-theft alarm |
| CN201268240Y (en) * | 2008-08-18 | 2009-07-08 | 浙江特力电机有限公司 | Anti-theft control device of electric vehicle |
| CN204250221U (en) * | 2014-09-25 | 2015-04-08 | 成都锐奕信息技术有限公司 | RF-type storage battery car guard against theft and alarm system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108734815A (en) * | 2017-04-21 | 2018-11-02 | 胡洪平 | A kind of intelligent brushless wheel hub motor and unlocking method |
| JP6342043B1 (en) * | 2017-06-20 | 2018-06-13 | 三菱電機株式会社 | Electric motor control apparatus and electric motor control method |
| CN107512242A (en) * | 2017-07-11 | 2017-12-26 | 贵港市瑞成科技有限公司 | A kind of anti-anti-theft system of electromotor car for cutting power line |
| CN107512242B (en) * | 2017-07-11 | 2019-09-24 | 泉州台商投资区双艺商贸有限公司 | A kind of anti-anti-theft system of electromotor car for cutting power supply line |
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Application publication date: 20151230 |