CN111016844B - System and method for cutting off power of vehicle and vehicle - Google Patents
System and method for cutting off power of vehicle and vehicle Download PDFInfo
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- CN111016844B CN111016844B CN201911348932.4A CN201911348932A CN111016844B CN 111016844 B CN111016844 B CN 111016844B CN 201911348932 A CN201911348932 A CN 201911348932A CN 111016844 B CN111016844 B CN 111016844B
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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
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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
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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
- B60R2025/0405—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 from the external
Abstract
The invention provides a system and a method for cutting off power of a vehicle and the vehicle, wherein the system comprises: the device comprises a data transmission module, a control module, an ACC gear interface, a voltage detection line and a relay, wherein the data transmission module receives a command for cutting off the vehicle power sent by a user and transmits the command to the control module; the voltage detection line detects a voltage signal of the ACC gear interface; the control module receives a command for cutting off the power of the vehicle and the voltage signal, and controls the relay to be disconnected when the voltage signal is greater than a preset voltage, so that a power system circuit of the vehicle is opened, and the power of the vehicle is cut off. The invention can disconnect the relay when the vehicle is subjected to unauthorized driving, and keep the relay closed in other states, thereby greatly reducing the power consumption of the storage battery, ensuring the normal work of other key equipment of the vehicle, ensuring the driving safety and reducing the maintenance cost.
Description
Technical Field
The invention relates to the technical field of vehicle safety, in particular to a system and a method for cutting off vehicle power and a vehicle.
Background
At present, many vehicles have a remote anti-theft function, namely, a vehicle controller (such as a vehicle owner) can achieve the purposes of vehicle security and theft prevention through a remote power cut-off method. On one hand, before the vehicle engine is ignited, the key circuit can be cut off by controlling the vehicle relay, so that the vehicle can not be ignited and can not run; on the other hand, after the vehicle is ignited and runs, the key circuit can be cut off by controlling the vehicle relay, so that the vehicle loses power and stops running.
In the related art, as shown in fig. 1, a vehicle power cut-off scheme may include a data transmission module, a control module, a power supply module, and a relay. The data transmission module receives a power cut-off instruction sent by a vehicle controller and sends the power cut-off instruction to the control module, the control module receives the instruction and immediately executes the instruction to control the relay to be switched off (the power supply module supplies power), and the relay is usually installed on a vehicle key circuit, so that the vehicle key circuit is switched off when the relay is switched off, and the vehicle cannot ignite or loses power. The relay is normally closed, i.e., normally closed when not energized, and open (disconnected) when energized. The other normally open relay is normally open under the condition of no power supply and closed under the condition of power supply, and the normally open relay is more power-consuming and is not generally used in the scenes of vehicle security and theft prevention. The key line mainly refers to a line for connecting equipment such as a vehicle oil pump, a master control computer, a vehicle door window, a key hole and the like, and once the line is cut off, the vehicle cannot ignite or loses power. The power supply module mainly refers to a vehicle storage battery, and the storage battery is required to be continuously supplied with power when the relay is disconnected, so that the power consumption is increased.
The above-described prior art vehicle power cut-off scheme has the following disadvantages:
1) the vehicle controller is difficult to know whether the vehicle is subjected to unauthorized driving conditions (such as theft, child misopening and the like) in the future in advance, and the relay can only be switched off after the vehicle is parked every time, so that the vehicle cannot be ignited, but the relay is continuously switched off, so that the power consumption is high, the storage battery is influenced to supply power for other key equipment, the driving safety is influenced due to poor power supply, and the maintenance cost is increased.
2) After the vehicle controller knows that the vehicle is subjected to unauthorized driving, the relay needs to be disconnected in order to lose power of the vehicle, and before the vehicle controller finds the vehicle, the relay needs to be kept in a disconnected state to prevent the vehicle from being subjected to unauthorized driving for the second time, the continuous power supply is very power-consuming, and the vehicle is likely to be incapable of being switched back by the vehicle controller due to the fact that the electric quantity is exhausted, so that the maintenance cost is increased.
Disclosure of Invention
The present invention is directed to solving at least one of the above problems.
Therefore, one object of the present invention is to provide a system for cutting off power of a vehicle, which can cut off a relay only when the vehicle is subjected to unauthorized driving, and keep the relay closed in other states, thereby greatly reducing the power consumption of a battery, ensuring the normal operation of other key equipment of the vehicle, ensuring the driving safety, and reducing the maintenance and repair cost.
A second object of the invention is to propose a vehicle.
A third object of the invention is to propose a method for cutting off the power of a vehicle.
In order to achieve the above object, an embodiment of a first aspect of the present invention proposes a system for shutting off power of a vehicle, including: the control system comprises a data transmission module, a control module, an ACC gear interface, a voltage detection line and a relay, wherein one end of the voltage detection line is connected with the control module, the other end of the voltage detection line is connected with the ACC gear interface, the control module is simultaneously connected with the data transmission module, the voltage detection line and the relay, and the relay is connected with a power system circuit of a vehicle, wherein the data transmission module receives a command which is sent by a user and used for cutting off the power of the vehicle and transmits the command to the control module; the voltage detection line detects a voltage signal of the ACC gear interface; the control module receives the command for cutting off the vehicle power and the voltage signal, and controls the relay to be disconnected when the voltage signal is greater than a preset voltage, so that a power system circuit of the vehicle is opened, and the vehicle power is cut off.
According to the system for cutting off the power of the vehicle, the relay is disconnected only when the vehicle is subjected to unauthorized driving by adding the voltage detection line and changing the control method, and the relay is kept in a closed state in other states, namely, the relay does not need to be continuously disconnected and the continuous power supply is maintained before a vehicle controller finds the vehicle, and the relay is disconnected only when the vehicle is actually subjected to secondary unauthorized driving, so that the power consumption of a storage battery is greatly reduced, the normal work of other key equipment of the vehicle is ensured, the driving safety is guaranteed, and the maintenance cost is reduced.
In addition, the system for cutting off the power of the vehicle according to the above embodiment of the invention may also have the following additional technical features:
in some examples, the data transmission module also receives a command from a user that does not require the vehicle to be powered off and transmits the command to the control module; the control module receives the command without cutting off the power of the vehicle or controls the relay to be kept closed when the voltage signal is zero.
In some examples, further comprising: the power supply module is connected with the relay so as to supply power to the relay when the relay is started, so that the relay is disconnected; the control module is connected with the power supply module and used for controlling the power supply module to be turned on or turned off.
In some examples, the ACC gear interface includes an interface body and all powered device interfaces that are powered on in a vehicle to which the interface body is connected.
In some examples, the voltage detection lines are one or more.
In some examples, the number of the ACC gear interfaces is one or more, and one or more ACC gear interfaces are connected to one or more voltage detection lines in a one-to-one correspondence.
In some examples, the relay is one or more.
In some examples, the data transmission module is further configured to transmit vehicle-related information to a user, the vehicle-related information including at least: voltage signal data, vehicle state information, relay state information.
In order to achieve the above object, an embodiment of a second aspect of the present invention proposes a vehicle including the system for shutting off power of a vehicle according to the above embodiment of the present invention.
According to the vehicle provided by the embodiment of the invention, the relay is disconnected only when the vehicle is subjected to unauthorized driving by adding the voltage detection line and changing the control method, and the relay is kept in a closed circuit in other states, namely, the relay does not need to be continuously disconnected and continuously powered before a vehicle controller finds the vehicle, and the relay is disconnected only when the vehicle is subjected to unauthorized driving for the second time, so that the power supply energy consumption of the storage battery is greatly reduced, the normal work of other key equipment of the vehicle is ensured, the driving safety is ensured, and the maintenance cost is reduced.
In order to achieve the above object, an embodiment of a third aspect of the present invention proposes a method of shutting off power of a vehicle, including the steps of: the data transmission module receives a command for cutting off the vehicle power sent by a user and transmits the command to the control module; the voltage detection line detects a voltage signal of the ACC gear interface; the control module receives the command for cutting off the vehicle power and the voltage signal, and controls the relay to be disconnected when the voltage signal is greater than a preset voltage, so that a power system circuit of the vehicle is opened, and the vehicle power is cut off, wherein the relay is connected with the power system circuit of the vehicle.
According to the method for cutting off the power of the vehicle, the relay can be disconnected only when the vehicle is subjected to unauthorized driving by adding the voltage detection line and changing the control method, the relay is kept in a closed circuit in other states, namely the relay does not need to be continuously disconnected and the continuous power supply is maintained before a vehicle controller finds the vehicle, and the relay is disconnected only when the vehicle is actually subjected to secondary unauthorized driving, so that the power supply energy consumption of the storage battery is greatly reduced, the normal work of other key equipment of the vehicle is ensured, the driving safety is ensured, and the maintenance cost is reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic illustration of a prior art related art vehicle power shutoff scheme;
FIG. 2 is a block diagram of a system for shutting off power to a vehicle according to one embodiment of the present invention;
FIG. 3 is a schematic diagram of the operation of a system for cutting power to a vehicle according to an exemplary embodiment of the present invention;
FIG. 4 is a schematic diagram of the operation of a system for shutting down power to a vehicle according to another embodiment of the present invention;
FIG. 5 is a schematic diagram of the operation of a system for cutting power to a vehicle according to a third embodiment of the present invention;
FIG. 6 is a schematic diagram of the operation of a system for cutting power to a vehicle according to a fourth embodiment of the present invention;
FIG. 7 is a flow diagram of a method of shutting down power to a vehicle according to one embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The system and method for cutting off the power of a vehicle according to the embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 2 is a block diagram of a system for cutting off power of a vehicle according to an embodiment of the present invention. As shown in fig. 2, the system 100 for cutting off power of a vehicle includes: the device comprises a data transmission module 110, a control module 120, an ACC gear interface 130, a voltage detection line 140 and a relay 150.
One end of the voltage detection line 140 is connected with the control module 120, the other end of the voltage detection line 140 is connected with the ACC gear interface 130, the control module 120 is simultaneously connected with the data transmission module 110, the voltage detection line 140 and the relay 150, the relay 150 is connected with a power system circuit of the vehicle, the power system circuit is a key circuit of the vehicle, the power system circuit is controlled by the relay 150, the power system circuit is disconnected, and therefore the power of the vehicle is cut off.
Specifically, the data transmission module 110 receives a command for cutting off the power of the vehicle from a user (i.e., a vehicle controller, such as a vehicle owner), and transmits the command to the control module 120; the voltage detection line 140 detects a voltage signal of the ACC shift interface 130; the control module 120 receives a command to cut off vehicle power and the voltage signal and when the voltage signal is greater than a preset voltage (i.e., there is a voltage), controls the relay 150 to open the vehicle's powertrain circuit, thereby disabling the vehicle from firing or losing power to cut off vehicle power. The preset voltage is, for example, 0 or close to 0.
In one embodiment of the present invention, the data transmission module 110 also receives a command from a user that does not require the vehicle to be powered off and transmits the command to the control module 120; the control module 120 receives an instruction that the power of the vehicle is not required to be cut off, or when the voltage signal is zero, the control relay 150 is kept closed, that is, the power of the vehicle is not cut off, and the vehicle can run normally.
In other words, after the data transmission module 110 receives the command sent by the vehicle controller and sends the command to the control module 120, the control module 120 obtains the voltage signal of the voltage detection line 140 (the obtaining frequency is flexibly set according to different scenes), when there is a voltage signal and the command requires power cut-off, the control module 120 executes the power cut-off command, the control relay 150 is turned off (the power supply module supplies power at this time), and since the relay 150 is connected and controls the key circuit of the vehicle (i.e., the power system circuit of the vehicle), the key circuit of the vehicle is turned off when the relay 150 is turned off, so that the vehicle cannot ignite or lose power; when there is no voltage signal (voltage is 0 or approaches 0) or no power cut-off is requested, the control module 120 does not execute the power cut-off command, the relay 150 remains closed (at this time, the power supply module does not supply power), and the vehicle can be driven normally.
In one embodiment of the present invention, the system 100 for cutting power of a vehicle further comprises a power supply module. The power supply module is connected with the relay 150 to supply power to the relay 150 when being opened, so that the relay 150 is disconnected; the control module 120 is connected to the power supply module and is configured to control the power supply module to be turned on or off. As mentioned above, that is, when there is a voltage signal and the command requires power cut-off, the control module 120 controls the power supply module to turn on, and supplies power to the relay 150, so as to turn off the relay 150, thereby disconnecting the key circuit of the vehicle, and preventing the vehicle from igniting or losing power; when there is no voltage signal (voltage is 0 or approaches to 0) or no power cut-off is requested by the command, the control module 120 controls the power supply module to be turned off, and does not supply power to the relay 150, so that the relay 150 is kept closed, and the vehicle can be normally driven. Wherein, the power supply module is for example the storage battery of vehicle.
In one embodiment of the present invention, the ACC gear interface 130 includes an interface body and interfaces for all electrical devices that can be powered on in the vehicle, such as auxiliary electrical devices, such as lighting and signal lamps, alarm lamps, meters, radios and stereos, connected to the interface body. In other words, the ACC range interface 130 includes all the device interfaces that can be energized in the vehicle in the ACC range ON state, in addition to the interface itself.
In one embodiment of the present invention, the control module 120 may be installed in a vehicle, and a vehicle positioning module may be integrated in the control module 120, and the vehicle positioning module may be used for positioning the vehicle, providing vehicle position information, and facilitating a user to find the vehicle in time.
In one embodiment of the present invention, the data transmission module 110 is further configured to transmit vehicle-related information to a user for the user to manage the vehicle. The vehicle-related information includes at least: voltage signal data, vehicle state information, relay state information. In other words, the data transmission module 110 may receive and transmit a command (e.g., a command to cut off the power of the vehicle/a command not to cut off the power of the vehicle) and may receive and transmit vehicle-related information, e.g., voltage signal data, vehicle state information, relay state information, etc., and transmit the data to the vehicle controller so that the vehicle controller manages the vehicle.
Specifically, the control module 120 obtains the voltage signal of the voltage detection line 140, when there is a voltage signal and the received command requires power cut-off, the control module controls the relay 150 to be turned off, and sends the received voltage signal data, vehicle status information, relay status information, and the like to the data transmission module 110, so as to inform the vehicle controller that the vehicle is being driven by unauthorized driving (such as theft, misdriving by children, and the like), so that the vehicle controller can manage the vehicle conveniently.
In one embodiment of the present invention, the voltage detection line 140 and the relay 150 may be integrated in the control module 120, thereby saving space in the vehicle.
In one embodiment of the present invention, the voltage detection lines 140 are one or more.
Further, the number of the ACC step interfaces 130 may be one or more, and one or more ACC step interfaces 130 are connected to one or more voltage detection lines 140 in a one-to-one correspondence.
Further, the relay 150 may be one or more.
That is, one control module 120 may be connected to one or more voltage detection lines 140, one voltage detection line 140 is connected to one ACC line interface 130, if a plurality of voltage detection lines 140 are respectively connected to a plurality of ACC line interfaces 130, one control module 120 may be connected to one or more relays 150.
In the embodiment, according to different usage scenarios and different vehicle type requirements, only one ACC line interface 130 and one voltage detection line 140 may be used, and one control module 120 controls one relay 150, for example, as shown in fig. 3; it is also possible to use only one ACC line interface 130, one voltage detection line 140, and one control module 120 to control a plurality of relays 150, such as shown in fig. 4; multiple ACC line interfaces 130, multiple voltage detection lines 140, one control module 120 controlling one relay 150, such as shown in fig. 5; in addition, a plurality of ACC line interfaces 130, a plurality of voltage detection lines 140, and one control module 120 may control a plurality of relays 150, for example, as shown in fig. 6.
Specifically, the embodiment of the invention can control the relay 150 to disconnect the critical line through the control module 120, so as to ensure the safety of the vehicle. For example, all of the relays 150 may be turned off at the same time, or one or more of the relays 150 may be turned off.
When the scheme of the voltage detection lines 140 or the relays 150 is selected, vehicle security and anti-theft and personnel security capabilities are improved, and under the condition that one of the voltage detection lines 140 and/or the relays 150 fails, voltage signal data, vehicle state information, relay state information and other data can be acquired through other normally-working voltage detection lines 140 and/or relays 150, execution of a power cut-off instruction is guaranteed, vehicle safety is guaranteed, and vehicles are prevented from being stolen or mistakenly opened.
As a specific example, the security and theft prevention operation principle of the system for cutting off the power of the vehicle according to the embodiment of the present invention will be described below.
When the ACC gear interface 130 is in an ON state (for example, a driver merely inserts a key or presses an ACC gear button, and any method that can energize the entire vehicle), the entire vehicle is in an energized state, and at this time, the ACC gear interface 130 (including interfaces for interior lighting and auxiliary electrical equipment such as signal lights, alarm lights, instruments, radios, and audio) is in an energized state, and all voltages are generated. In this state, the whole vehicle is not ignited. The embodiment of the invention monitors the voltage of the ACC interface 130 before the vehicle is not ignited, once a voltage signal is found, it can be quickly known that an unauthorized person sets the vehicle state to the ACC interface 130ON state (for example, when a driver only inserts a key or presses an ACC button and the whole vehicle is electrified by any method), at this time, when the received command is a power off command, it is automatically determined that the vehicle is about to be driven by an unauthorized person (for example, the vehicle is about to be ignited), the control module 120 executes the power off command, the relay 150 is controlled to be off (power is supplied by the power supply module at this time), as the relay 150 is connected and controls the key circuit of the vehicle, the relay 150 is switched off, the key circuit of the vehicle is switched off, the vehicle cannot be ignited, and thus the unauthorized person is prevented from driving the vehicle. On the contrary, when the voltage signal of the ACC gear interface 130 is monitored to be 0 or close to 0, that is, the vehicle is not in the entire vehicle power-on state, at this time, it is automatically determined that the vehicle is not driven by unauthorized people (such as about to ignite), the control module 120 does not execute the power cut-off instruction, the relay 150 remains connected, the power supply module does not need to supply power, and the vehicle can be driven normally.
Therefore, in the system for cutting off the vehicle power, after a vehicle controller sends a vehicle power cutting-off instruction, the vehicle can keep the relay connected (without power supply) all the time, and only when a certain condition is met, the relay is disconnected, so that the power consumption is very low, namely the relay is disconnected when unauthorized driving really occurs. In addition, the relay does not need to be continuously disconnected and the continuous power supply is maintained before a vehicle controller finds the vehicle, and the relay needs to be disconnected only when the vehicle controller is actually driven twice without authorization, so that the energy consumption is greatly reduced, and the maintenance cost is reduced. Meanwhile, the system for cutting off the power of the vehicle has strong applicability and wide application range, can be applied to the fields of vehicle security and theft prevention, and can also be applied to the field of personnel security, such as the prevention of old people, children or unauthorized personnel from driving the vehicle without permission.
According to the system for cutting off the power of the vehicle, the relay is disconnected only when the vehicle is subjected to unauthorized driving by adding the voltage detection line and changing the control method, and the relay is kept in a closed state in other states, namely, the relay does not need to be continuously disconnected and the continuous power supply is maintained before a vehicle controller finds the vehicle, and the relay is disconnected only when the vehicle is actually subjected to secondary unauthorized driving, so that the power consumption of a storage battery is greatly reduced, the normal work of other key equipment of the vehicle is ensured, the driving safety is guaranteed, and the maintenance cost is reduced.
A further embodiment of the present invention also provides a vehicle. The vehicle comprises the system for cutting off the power of the vehicle according to any one of the embodiments of the invention. Therefore, the specific implementation manner of the vehicle according to the embodiment of the present invention is similar to the specific implementation manner of the system for cutting off the vehicle power according to the embodiment of the present invention, and please refer to the description of the system part specifically, and the detailed description is omitted here in order to reduce redundancy.
According to the vehicle provided by the embodiment of the invention, the relay is disconnected only when the vehicle is subjected to unauthorized driving by adding the voltage detection line and changing the control method, and the relay is kept in a closed circuit in other states, namely, the relay does not need to be continuously disconnected and continuously powered before a vehicle controller finds the vehicle, and the relay is disconnected only when the vehicle is subjected to unauthorized driving for the second time, so that the power supply energy consumption of the storage battery is greatly reduced, the normal work of other key equipment of the vehicle is ensured, the driving safety is ensured, and the maintenance cost is reduced.
In addition, other configurations and functions of the vehicle according to the embodiment of the present invention are known to those skilled in the art, and are not described in detail in order to reduce redundancy.
A further embodiment of the present invention is also directed to a method of shutting off power to a vehicle.
FIG. 7 is a flow diagram of a method of shutting down power to a vehicle according to one embodiment of the present invention. As shown in fig. 7, the method for cutting off the power of the vehicle includes the following steps:
step S1: the data transmission module receives a command of cutting off the vehicle power sent by a user and transmits the command to the control module.
Step S2: the voltage detection line detects a voltage signal of the ACC gear interface.
Step S3: the control module receives a command for cutting off the power of the vehicle and a voltage signal, and controls the relay to be disconnected when the voltage signal is greater than a preset voltage so that a power system circuit of the vehicle is opened to cut off the power of the vehicle, wherein the relay is connected with the power system circuit of the vehicle.
In one embodiment of the invention, the method further comprises: the data transmission module receives an instruction which is sent by a user and does not need to cut off the power of the vehicle, and transmits the instruction to the control module; the control module receives an instruction that the power of the vehicle is not required to be cut off, or when the voltage signal is zero, the control relay is kept closed, namely the power of the vehicle is not cut off, and the vehicle can run normally.
In other words, after the data transmission module receives an instruction sent by a vehicle controller and sends the instruction to the control module, the control module acquires a voltage signal of a voltage detection line (the acquisition frequency is flexibly set according to different scenes), when the voltage signal exists and the instruction requires power cut-off, the control module executes a power cut-off instruction and controls the relay to be disconnected (power is supplied to the power supply module at the moment), and the relay is connected with and controls a key circuit of the vehicle (namely a power system circuit of the vehicle), so that the key circuit of the vehicle is disconnected when the relay is disconnected, and the vehicle cannot be ignited or loses power; when no voltage signal (the voltage is 0 or approaches to 0) or the command does not require power cut-off, the control module does not execute the power cut-off command, the relay is kept closed (at the moment, the power supply module does not supply power), and the vehicle can be normally driven at the moment.
In one embodiment of the invention, the method further comprises: the data transmission module transmits the vehicle-related information to the user so that the user can manage the vehicle. The vehicle-related information includes at least: voltage signal data, vehicle state information, relay state information. In other words, the data transmission module may receive and transmit a command (e.g., a command to cut off the power of the vehicle/a command not to cut off the power of the vehicle), and may receive and transmit vehicle-related information, such as voltage signal data, vehicle state information, relay state information, etc., and transmit the data to the vehicle controller so that the vehicle controller manages the vehicle.
Specifically, the control module obtains a voltage signal of the voltage detection line, when the voltage signal exists and a received command requires power cut-off, the control module controls the relay to be switched off, and sends received voltage signal data, vehicle state information, relay state information and the like to the data transmission module, so that a vehicle controller is informed of unauthorized driving (such as theft, child misdriving and the like) of the vehicle in time, and the vehicle controller can manage the vehicle conveniently.
In one embodiment of the invention, the voltage detection lines are one or more.
Furthermore, the number of the ACC gear interfaces can be one or more, and the one or more ACC gear interfaces are connected with the one or more voltage detection lines in a one-to-one correspondence mode.
Further, the relay may be one or more.
That is, one control module may be connected to one or more voltage detection lines, one voltage detection line is connected to one ACC line interface, if there are multiple voltage detection lines, the multiple ACC line interfaces may be connected to the one control module, and one or more relays may be connected to the one control module.
In the specific embodiment, according to different use scenes and different vehicle type requirements, only one ACC gear interface, one voltage detection line and one relay can be controlled by one control module; or only one ACC gear interface and one voltage detection line can be used, and one control module controls a plurality of relays; a plurality of ACC gear interfaces and a plurality of voltage detection lines can be used, and one control module controls one relay; in addition, a plurality of ACC gear interfaces and a plurality of voltage detection lines can be used, and one control module controls a plurality of relays. All relays may be turned off simultaneously, or one or more of the relays may be turned off.
When the scheme of the plurality of voltage detection lines or the plurality of relays is selected, the security and the theft prevention of the vehicle and the security of personnel can be improved, under the condition that one of the voltage detection lines and/or the relays fails, the voltage signal data, the vehicle state information, the relay state information and other data can be acquired through other normally working voltage detection lines and/or the relays, the execution of a power cut-off instruction is guaranteed, the safety of the vehicle is ensured, and the vehicle is prevented from being stolen or opened by mistake.
As a specific embodiment, when the ACC gear interface is in an ON state (for example, a driver only inserts a key or presses an ACC gear button, and any method that can energize the entire vehicle), the entire vehicle is in an energized state, and at this time, the ACC gear interface (including interfaces of auxiliary electrical devices such as a lighting and signal lamp in the vehicle, an alarm lamp, a meter, a radio, and a sound box) is in an energized state, and voltage is generated. In this state, the entire vehicle is not yet ignited. The embodiment of the invention monitors the voltage of the ACC gear interface before the vehicle is not ignited, once a voltage signal is found, the fact that an unauthorized person sets the vehicle state to be the ACC gear interface ON state can be rapidly known (for example, a driver only inserts a key or presses an ACC gear button and the whole vehicle is electrified by any method), at the moment, when the received command is a power off command, the vehicle is automatically judged to be about to be driven by an unauthorized person (for example, the vehicle is about to be ignited), the control module executes the power off command and controls the relay to be disconnected (power is supplied by the power supply module at the moment), and as the relay is connected and controls the key circuit of the vehicle, the key circuit of the vehicle is disconnected, so that the vehicle cannot be ignited, and the unauthorized person is prevented from driving the vehicle. On the contrary, when the voltage signal of the ACC gear interface is monitored to be 0 or close to 0, that is, the vehicle is not in the whole vehicle power-on state, at this time, it is automatically determined that the vehicle is not driven by unauthorized people (such as about to ignite), the control module does not execute a power cut-off instruction, the relay is kept connected, the power supply module does not need to supply power, and the vehicle can be driven normally.
Therefore, according to the method for cutting off the vehicle power, after a vehicle controller sends a vehicle power cutting-off instruction, the vehicle can keep the relay connected (without power supply) all the time, and only when a certain condition is met, the relay is cut off, so that the power consumption is very low, namely the relay is cut off when unauthorized driving really happens, therefore, the embodiment of the invention has an important advantage in the aspect of vehicle energy consumption management and control, and meanwhile, the power supply module is ensured to supply power to other key equipment, the driving safety is ensured, and the maintenance cost is reduced. In addition, the relay does not need to be continuously disconnected and the continuous power supply is maintained before a vehicle controller finds the vehicle, and the relay needs to be disconnected only when the vehicle controller is actually driven twice without authorization, so that the energy consumption is greatly reduced, and the maintenance cost is reduced. Meanwhile, the method for cutting off the vehicle power has strong applicability and wide application range, can be applied to the fields of vehicle security and theft prevention, and can also be applied to the field of personnel security, such as prevention of old people, children or unauthorized personnel from driving vehicles without permission.
It should be noted that a specific implementation manner of the method for cutting off vehicle power according to the embodiment of the present invention is similar to a specific implementation manner of the system for cutting off vehicle power according to the embodiment of the present invention, and please refer to the description of the system part specifically, and details are not described here again in order to reduce redundancy.
According to the method for cutting off the power of the vehicle, the relay is disconnected when the vehicle is subjected to unauthorized driving by adding the voltage detection line and changing the control method, and the relay is kept in a closed state in other states, namely the relay does not need to be continuously disconnected and the continuous power supply is maintained before a vehicle controller finds the vehicle, and the relay is disconnected only when the vehicle is actually subjected to the unauthorized driving for the second time, so that the power consumption of a storage battery is greatly reduced, the normal work of other key equipment of the vehicle is ensured, the driving safety is guaranteed, and the maintenance cost is reduced.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A system for shutting off power to a vehicle, comprising: the device comprises a data transmission module, a control module, an ACC gear interface, a voltage detection line and a relay, wherein one end of the voltage detection line is connected with the control module, the other end of the voltage detection line is connected with the ACC gear interface, the control module is simultaneously connected with the data transmission module, the voltage detection line and the relay, the relay is connected with a power system circuit of a vehicle, the ACC gear interface is connected with the control module,
the data transmission module receives a command of cutting off the vehicle power sent by a user and transmits the command to the control module;
the voltage detection line detects a voltage signal of the ACC gear interface;
the control module receives the command for cutting off the vehicle power and the voltage signal, automatically judges that the vehicle is driven by unauthorized people when the voltage signal is greater than a preset voltage, and controls the relay to be disconnected so as to open a power system circuit of the vehicle to cut off the vehicle power; when the voltage signal of the ACC gear interface is monitored to be 0 or approaches to 0, the control module controls the power supply module to be closed, and does not supply power to the relay so that the relay is kept closed;
the data transmission module also receives an instruction which is sent by a user and does not need to cut off the power of the vehicle, and transmits the instruction to the control module;
the control module receives the command without cutting off the vehicle power, or controls the relay to be kept closed when the voltage signal is zero; the ACC gear interface comprises an interface body and all electric equipment interfaces which are connected with the interface body and can be electrified in a vehicle.
2. The system for shutting down power of a vehicle of claim 1, further comprising:
the power supply module is connected with the relay so as to supply power to the relay when the relay is started, so that the relay is disconnected;
the control module is connected with the power supply module and used for controlling the power supply module to be turned on or turned off.
3. The system for shutting down power of a vehicle of claim 1, wherein the voltage detection lines are one or more.
4. The system for cutting off power of a vehicle according to claim 3, characterized in that the ACC level interface is one or more, and one or more of the ACC level interfaces are connected with one or more of the voltage detection lines in a one-to-one correspondence.
5. A system for shutting down power of a vehicle as claimed in claim 1, wherein the relay is one or more.
6. The system for shutting down power of a vehicle of claim 1, wherein the data transmission module is further configured to transmit vehicle-related information to a user, the vehicle-related information including at least: voltage signal data, vehicle state information, relay state information.
7. A vehicle comprising a system for cutting off power of the vehicle according to any one of claims 1 to 6.
8. A method for cutting off power of a vehicle, characterized in that it comprises a method for cutting off power of a vehicle based on a system according to any one of claims 1-6.
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| CN201911348932.4A CN111016844B (en) | 2019-12-24 | 2019-12-24 | System and method for cutting off power of vehicle and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2233802B (en) * | 1989-07-12 | 1993-05-12 | Pioneer Electronic Corp | Burglar device for electronic equipment adapted to be mounted in vehicles |
| GB2288848A (en) * | 1994-04-22 | 1995-11-01 | Hsiang Sheng Hsiang | Vehicle anti-theft circuit |
| CN101423057B (en) * | 2007-10-31 | 2013-05-29 | 比亚迪股份有限公司 | Automatic vehicle-parking braking device and control method |
| CN201395116Y (en) * | 2009-06-11 | 2010-02-03 | 关子坤 | Novel anti-theft device of digital car |
| CN102107647B (en) * | 2010-09-15 | 2012-01-25 | 智少雷 | RFID (radio frequency identification) intelligent anti-theft system of electric motor car and control method thereof |
| CN203854624U (en) * | 2014-05-24 | 2014-10-01 | 陕西思联众达机电科技有限公司 | Control circuit for vehicle-mounted global position system (GPS) positioner |
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