Electric-vehicle safety monitoring system and apparatus

Abstract

An electric-vehicle safety monitoring system and apparatus. The electric-vehicle safety monitoring system comprises a main-control terminal, wherein a detection unit is connected to the main-control terminal, and the detection unit is used for performing comprehensive detection on a battery pack of an electric vehicle; a computing unit is connected to the detection unit, and the computing unit is used for receiving data of the detection unit; a prompting unit is connected to the computing unit, and the prompting unit is used for receiving a result of the computing unit and taking a corresponding measure on the basis of the result of computation; and the detection unit comprises a temperature and humidity monitoring module, the temperature and humidity monitoring module comprises a substrate (100), a protective shell (101) is mounted on one end of the top of the substrate (100), a connecting line (102) is mounted on the other end of the substrate (100), and buffer assemblies are provided at four corners of the substrate (100), and by means of the provision of the buffer assemblies, when the electric vehicle runs, the influence of a vibration force on the whole temperature and humidity monitoring module can be reduced. Systematical and comprehensive detection and analysis are performed on a battery pack by means of a detection unit, and thus an early-warning period is extended and the service life of the battery pack is prolonged.

Description

Electric vehicle safety monitoring system and device Technical Field

[0001] The present invention belongs to the technical field of electric vehicle safety, and in particular relates to an electric vehicle safety monitoring system and device. Background Art

[0002] Electric vehicles are purely electric vehicles powered by batteries and driven by electric motors. With the popularity of electric vehicles, safety issues are becoming increasingly prominent. Publication No. CN205880584U discloses an electric vehicle remote safety monitoring system. This patent uses the main controller MCU to determine whether the electric vehicle is safe, providing early warning and rapid response to dangerous situations.

[0003] However, the above patent mainly relies on the main controller MC to detect and alarm the battery pack in the first time. Since there are no other auxiliary equipment and special calculation methods to make a systematic analysis of the battery pack's service life, external environment, output power, input power and other conditions, the accuracy and advanceness of the early warning are lacking. As a result, the early warning can only be achieved when the hazard occurs and within one minute before the hazard occurs. However, no effective processing can be made within the warning time. Therefore, there are great limitations in actual use, and there is room for it to be idle for years. Summary of the Invention

[0004] The purpose of the present invention is to provide an electric vehicle safety monitoring system and device to solve the problem that the existing electric vehicle safety monitoring system mentioned in the background art is lacking in accuracy and advance warning.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an electric vehicle safety monitoring system, comprising a main control terminal, to which a detection unit is connected, the detection unit being used to perform a comprehensive detection on the battery pack of the electric vehicle;

[0006] The detection unit is connected to a calculation unit, which is used to receive data from the detection unit and calculate the service life and current status of the battery pack based on the data;

[0007] The calculation unit is connected to a prompt unit, and the prompt unit is used to receive the result of the calculation unit and take corresponding measures according to the result of the calculation.

[0008] As a preferred technical solution in the present invention, the computing unit is provided with a simulation analysis module for analyzing the data of the detection unit and making a simulated state of the battery pack, and a trajectory preview module for performing a preview calculation of the state of the battery pack for subsequent use.

[0009] As a preferred technical solution in the present invention, the detection unit includes a current monitoring module and a voltage monitoring module for detecting the current and voltage of the battery pack. The detection unit also includes a temperature and humidity monitoring module. The temperature and humidity monitoring module is provided with an internal monitoring module and an external monitoring module for detecting the battery pack temperature and the external temperature of the electric vehicle. The internal monitoring module has a higher priority than the external monitoring module.

[0010] As a preferred technical solution in the present invention, the prompt unit is provided with an early warning module, which is used to receive the battery pack status trajectory analyzed by the trajectory preview module, and issue an alarm based on the time between the trajectory and the critical value of the battery pack generating hazards. For example, when the result of the trajectory preview module analysis is that the battery pack is about to spontaneously combust or explode, the professional handling personnel and the car owner are notified. The prompt unit is also provided with a voice notification module, which is connected to the detection unit and is used to prompt the non-compliance of the battery pack's environment and usage status. The voice notification module only notifies the car owner, making it convenient for the car owner to make corresponding adjustments.

[0011] As a preferred technical solution in the present invention, the current monitoring module is provided with a fluctuation monitoring module for monitoring the magnitude of the input and output currents, and an editing module for editing and setting the monitoring values ​​of the fluctuation monitoring module.

[0012] As a preferred technical solution in the present invention, the main control terminal is also connected to an anti-theft unit, which is connected to a voice notification module, and the anti-theft unit is also connected to the door lock and steering wheel lock. When a non-owner or authorized person enters the vehicle, the vehicle will be detected by the anti-theft unit and the information will be provided to the owner through the voice notification module.

[0013] The present invention also discloses an electric vehicle safety monitoring device, including a temperature and humidity monitoring module in a monitoring system, the temperature and humidity monitoring module including a substrate, a protective shell installed at one end of the top of the substrate, and a connecting line installed at the other end; buffer components are provided at the four corners of the substrate. Through the setting of the buffer component, the impact of vibration force on the entire temperature and humidity monitoring module can be reduced when the electric vehicle is running. The buffer component includes a mounting seat and a buffer part arranged at the connection between the mounting seat and the substrate.

[0014] As a preferred technical solution in the present invention, placement grooves are provided at the upper and lower end surfaces of the mounting seat. The buffer component includes a magnetic plate bonded in the placement groove, and also includes magnetic sheets embedded in the upper and lower end surfaces of the substrate. The magnetic sheets and the magnetic plates are distributed in a repulsive manner. The repulsive force can realize the suspension of the substrate, thereby reducing the influence of vibration on the substrate. At the same time, the overall structure is simple and convenient for processing and production.

[0015] As a preferred technical solution in the present invention, a screw hole is further provided at the end of the mounting seat away from the substrate, and a bolt is screwed into the screw hole. The bolt is fixed to the external carrier, and by fixing the position of the mounting seat, it can be achieved that there is no offset between the mounting seat and the substrate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, a variety of sensors are used to conduct systematic and comprehensive detection and analysis of the battery pack, which can not only extend the early warning period, but also cultivate the owner's standardized use of electric vehicles to achieve the purpose of increasing the service life of the battery pack. When the battery pack is about to have an unexpected situation, professional handling personnel are notified in time to achieve the purpose of rapid processing, further reduce the expansion of the harmful situation, and improve the shortcomings of the existing monitoring system in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is a system diagram of the present invention;

[0019] FIG2 is a schematic structural diagram of a temperature and humidity monitoring module according to the present invention;

[0020] FIG3 is a cross-sectional view of the connection between the mounting base and the base plate of the present invention;

[0021] FIG4 is a top view of the magnetic sheet of the present invention.

[0022] In the figure: 100, substrate; 101, protective shell; 102, connecting wire; 103, mounting base; 103a, screw hole; 103b, placement slot; 104, magnetic plate; 105, magnetic sheet. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Referring to Figures 1 to 4 , the present invention provides a technical solution: an electric vehicle safety monitoring system, comprising a main control terminal connected to a detection unit for performing a comprehensive detection on a battery pack of the electric vehicle;

[0025] The detection unit is connected to a calculation unit, which is used to receive data from the detection unit and calculate the service life and current status of the battery pack based on the data;

[0026] The calculation unit is connected to a prompt unit, which is used to receive the result of the calculation unit and take corresponding measures according to the result of the calculation.

[0027] In this embodiment, the computing unit is provided with a simulation analysis module for analyzing the data from the detection unit and making a simulated state of the battery pack, as well as a trajectory preview module for performing a preview calculation of the state of the battery pack for subsequent use, so as to obtain the current and future states of the battery pack to the greatest extent, thereby realizing the function of early warning, and this early warning function can know the battery state over a long period of time, so that effective remedial and preventive measures can be taken in sufficient time.

[0028] In this embodiment, the detection unit includes a current monitoring module and a voltage monitoring module for detecting the current and voltage of the battery pack. By detecting the current and voltage of the battery pack, the current and voltage of the battery pack during charging and discharging can be obtained. Through calculation by the subsequent calculation unit, it can be determined whether the battery pack is being used normally or overloaded. The circuit cycle is a formula derived from theory and verified by practice.

[0029] For an ideal LC circuit, the self-induced electromotive force of the coil is equal to the voltage across the capacitor, but the two are in opposite directions in the circuit, that is:

[0030] -LΔI / Δt=q / C;

[0031] Again I = Δq / Δt;

[0032] Based on this, we can get the differential equation: the second-order derivative of the electric quantity q with respect to time t is equal to -q / (LC);

[0033] Solving this differential equation yields the relationship between current and time: I = I0sin(ωt+φ);

[0034] Derived from the formula: ω=2π / T=√1 / (LC);

[0035] Thus, a periodic formula for the change of current over time is obtained, and the formula can be used to calculate the generation preview state diagram of the later current trajectory. The detection unit also includes a temperature and humidity monitoring module, and the temperature and humidity monitoring module is provided with an internal monitoring module and an external monitoring module for detecting the battery pack temperature and the external temperature of the electric vehicle. The internal monitoring module has a higher priority than the external monitoring module. By detecting the external temperature of the electric vehicle, the impact of the external temperature on the battery pack can be known, which is conducive to the later calculation unit to make a more accurate simulation of the battery pack usage status and achieve the effect of advanced warning.

[0036] In this embodiment, an early warning module is provided on the prompt unit. The early warning module is used to receive the battery pack status trajectory analyzed by the trajectory preview module, and issue an alarm based on the time between the trajectory and the critical value of the battery pack generating hazards. For example, when the result of the trajectory preview module analysis is that the battery pack is about to spontaneously combust or explode within 3 to 5 minutes, the professional handling personnel and the car owner are notified. The prompt unit is also provided with a voice notification module. The voice notification module is connected to the detection unit and is used to prompt the non-compliance of the battery pack's environment and usage status. The voice notification module only notifies the car owner, making it convenient for the car owner to make corresponding adjustments.

[0037] In this embodiment, the current monitoring module is provided with a fluctuation monitoring module for monitoring the magnitude of the input and output currents. When the peak value of the input and output currents and the conventional current exceeds a predetermined value, it will be monitored, as well as an editing module for editing and setting the monitoring value of the fluctuation monitoring module.

[0038] In this embodiment, the main control terminal is also connected to an anti-theft unit, which is connected to the voice notification module. The anti-theft unit is also connected to the door lock and steering wheel lock. When a non-owner or authorized person enters the vehicle, the vehicle will be detected by the anti-theft unit and the information will be provided to the owner through the voice notification module.

[0039] The present invention also discloses an electric vehicle safety monitoring device, including a temperature and humidity monitoring module in a monitoring system, the temperature and humidity monitoring module including a substrate 100, a protective shell 101 installed at one end of the top of the substrate 100, and a connecting line 102 installed at the other end; buffer components are provided at the four corners of the substrate 100. Through the setting of the buffer component, the impact of vibration force on the entire temperature and humidity monitoring module can be reduced when the electric vehicle is running. The buffer component includes a mounting seat 103, and a buffer part arranged at the connection between the mounting seat 103 and the substrate 100.

[0040] In this embodiment, placement grooves 103b are provided at the upper and lower end surfaces of the interior of the mounting seat 103. The buffer component includes a magnetic plate 104 bonded in the placement groove 103b, and also includes a magnetic piece 105 embedded in the upper and lower end surfaces of the substrate 100. The magnetic piece 105 and the magnetic plate 104 are distributed in a repulsive manner. The repulsive force can realize that the substrate 100 is suspended, thereby reducing the influence of vibration on the substrate 100. At the same time, the overall structure is simple and convenient for processing and production.

[0041] In this embodiment, a screw hole 103a is further provided at the end of the mounting base 103 away from the substrate 100, and a bolt is screwed into the screw hole 103a. The bolt is fixed to the external carrier. By fixing the position of the mounting base 103, it is possible to prevent offset between the mounting base 103 and the substrate 100.

[0042] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An electric vehicle safety monitoring system, comprising a main control terminal, characterized in that: The main control terminal is connected to a detection unit, which is used to perform a comprehensive test on the battery pack of the electric vehicle; The detection unit is connected to a calculation unit, which is used to receive data from the detection unit and calculate the service life and current status of the battery pack based on the data; The calculation unit is connected to a prompt unit, which is used to receive the results of the calculation unit and take corresponding measures according to the calculation results; the calculation unit is provided with a simulation analysis module for analyzing the data of the detection unit and generating a simulated state of the battery pack, and a trajectory preview module for performing a preview calculation of the state of the battery pack in subsequent use; The prompt unit is provided with an early warning module, which is used to receive the battery pack status trajectory analyzed by the trajectory preview module and issue an alarm based on the time between the trajectory and the critical value of the battery pack's hazard. The prompt unit is also provided with a voice notification module, which is connected to the detection unit and is used to prompt the non-compliance of the battery pack's environment and usage status. The voice notification module only notifies the car owner.

2. The electric vehicle safety monitoring system according to claim 1, characterized in that: The detection unit includes a current monitoring module and a voltage monitoring module for detecting the current and voltage of the battery pack. The detection unit also includes a temperature and humidity monitoring module. The temperature and humidity monitoring module is provided with an internal monitoring module and an external monitoring module for detecting the battery pack temperature and the external temperature of the electric vehicle. The internal monitoring module has a higher priority than the external monitoring module.

3. The electric vehicle safety monitoring system according to claim 1, characterized in that: The current monitoring module is provided with a fluctuation monitoring module for monitoring the magnitude of the input and output currents, and an editing module for editing and setting the monitoring values ​​of the fluctuation monitoring module.

4. The electric vehicle safety monitoring system according to claim 1, characterized in that: The main control terminal is also connected to an anti-theft unit, which is connected to a voice notification module. The anti-theft unit is also connected to the door locks and steering wheel locks. When a non-owner or authorized person enters the vehicle, the vehicle will be detected by the anti-theft unit and information will be provided to the owner through the voice notification module.

5. An electric vehicle safety monitoring device, comprising the temperature and humidity monitoring module in the monitoring system according to any one of claims 1 to 4, characterized in that: The temperature and humidity monitoring module comprises a substrate (100), wherein a protective shell (101) is installed at one end of the top of the substrate (100), and a connecting line (102) is installed at the other end; buffer components are provided at the four corners of the substrate (100), and the buffer components include a mounting seat (103) and a buffer member provided at the connection between the mounting seat (103) and the substrate (100).

6. The electric vehicle safety monitoring device according to claim 5, characterized in that: The upper and lower end surfaces of the mounting seat (103) are provided with placement grooves (103b), and the buffer member includes a magnetic plate (104) bonded in the placement groove (103b), and also includes a magnetic piece (105) embedded in the upper and lower end surfaces of the base plate (100), and the magnetic piece (105) and the magnetic plate (104) are distributed in a isotropic repulsive manner.

7. The electric vehicle safety monitoring device according to claim 6, characterized in that: The end of the mounting seat (103) away from the substrate (100) is further provided with a screw hole (103a), and a bolt is screwed into the screw hole (103a), and the bolt is fixed to the external carrier.

Images