Vehicle emergency starting control method based on emergency power supply and emergency starting device thereof

Abstract

The invention discloses a vehicle emergency starting control method based on an emergency power supply and an emergency starting device thereof. The method comprises the steps that an output interface of the vehicle emergency power supply is connected with a vehicle storage battery and a vehicle electronic circuit system; when the voltage of the automobile storage battery is lower than 8V, a starting control signal is issued to the automobile emergency power supply through a remote controller; and after the starting control signal is received, the automobile emergency power supply is turned on, and the automobile electronic circuit system is lightened. When the automobile emergency power supply is connected with an automobile, control actions related to an automobile electronic circuit system can be operated in an engine compartment, and time delay caused by the fact that the automobile electronic circuit system does not work does not exist between operation in the engine compartment and starting operation after returning to the automobile. And time delay and complexity caused by the fact that an external starting battery needs to be forcibly started to lighten the electronic circuit system due to the fact that the electronic circuit system does not work when the automobile storage battery is lower than 8V and subsequent operation is carried out in the existing design are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of emergency power supplies, in particular to a vehicle emergency start control method based on an emergency power supply and its emergency start device. Background Art

[0002] An automotive emergency power supply is a portable device mainly used to assist in starting when the automotive battery is dead. It usually has a high-performance battery built-in, such as a lithium battery or a lead-acid battery, which can output a strong current at a critical moment to drive the automotive starter motor to operate. When the automotive battery runs out of power and the vehicle cannot be started normally, the automotive emergency power supply can replace the battery to provide a strong current for the automotive starting system and help the vehicle start smoothly. Its main components are as follows:

[0003] Battery pack: As the core component, it is used to store electrical energy and provide an energy source for starting the vehicle and other electrical devices.

[0004] Control circuit: Mainly responsible for managing and controlling the charging and discharging of the battery, including functions such as overcharge protection, over-discharge protection, over-current protection, and short-circuit protection, to ensure the safe use of the battery and extend its service life.

[0005] Output interface: Generally, there are various types, such as alligator clip interfaces dedicated to automotive starting, which are used to connect the positive and negative electrodes of the automotive battery; there are also USB interfaces, DC interfaces, etc., which are used to charge other electronic devices.

[0006] Shell: Plays a role in protecting the internal circuit and battery. It is usually made of high-strength and flame-retardant materials, with good compressive resistance and safety.

[0007] When using a charger to charge the automotive emergency power supply, the alligator clips of the automotive emergency power supply are correctly connected to the positive and negative electrodes of the automotive battery. At this time, the automotive emergency power supply and the starting circuit of the vehicle form a closed loop. Under the action of the control circuit, the battery pack of the automotive emergency power supply provides a strong instantaneous current to the starting motor of the vehicle. Generally, a large current is required to drive the starting motor to operate when starting a vehicle, driving the engine crankshaft to rotate and completing the engine starting process. The automotive emergency power supply can output sufficient current in a short time to meet the needs of vehicle starting and enable the engine to start smoothly.

[0008] When the automotive battery is lower than 8V (this state is very common), the electronic circuit system of the vehicle is inoperative, that is, there is no even ignition action. Existing designs must forcibly start an external starting battery to supply power to the vehicle and light up the electronic circuit system of the vehicle. This delay generally has to be designed for more than 30 seconds because it takes time to operate in the engine compartment and then return to the vehicle to start. If multiple ignitions are required, it is necessary to repeatedly get in and out of the vehicle to operate, resulting in cumbersome operations. Summary of the Invention

[0009] The main object of the present invention is to provide a vehicle emergency start control method and its emergency start device based on an emergency power source, aiming to solve the technical problem that the emergency start operation is complex and very time-consuming when the automotive battery is lower than 8V.

[0010] To solve the above technical problem, in the first aspect of the present invention, a vehicle emergency start control method based on an emergency power source is provided, and the method includes:

[0011] Connect the output interface of the automotive emergency power source to the automotive battery and the automotive electronic circuit system;

[0012] When the automotive battery is lower than 8V, send an opening control signal to the automotive emergency power source through a remote controller;

[0013] After receiving the opening control signal, the automotive emergency power source turns on and lights up the automotive electronic circuit system.

[0014] Further, after the step that the automotive emergency power source turns on and lights up the automotive electronic circuit system, the method further includes:

[0015] Start the engine through the automotive start button, repeatedly send the opening control signal and repeatedly start the engine until the engine starts successfully.

[0016] Further, when the automotive battery is not lower than 8V, the automotive emergency power source charges the automotive battery, and the automotive battery supplies power to the automotive electronic circuit system.

[0017] Further, after the connection of the output interface of the automotive emergency power source to the automotive battery, the method further includes:

[0018] Diagnose whether the positive and negative poles of the output interface and the automotive battery are correctly connected.

[0019] Further, the diagnosing whether the positive and negative poles of the output interface and the automotive battery are correctly connected specifically includes:

[0020] Send a diagnostic signal of the result of diagnosing the positive and negative poles of the battery to the remote controller;

[0021] The remote controller receives the signal. When the diagnostic signal is a qualified signal, the remote controller displays a red light; when the diagnostic signal is an unqualified signal, the remote controller displays a green light;

[0022] Regardless of whether the diagnostic signal received by the remote controller is qualified or not, as long as the connection button is pressed, the automotive emergency power source can be connected to the automotive electronic circuit system.

[0023] Further, diagnosing whether the positive and negative electrodes of the output interface are correctly connected to the automotive battery specifically includes:

[0024] When the diagnostic signal is a non - qualified signal, the remote controller cannot send a start control signal, and a prompt is given to correct the connection state of the output interface.

[0025] Based on the same inventive concept, the second aspect of the present invention provides an emergency start device, which consists of an automotive emergency power supply and a remote controller. The automotive emergency power supply includes:

[0026] A battery pack for providing working voltage;

[0027] An output interface for connecting to the automotive battery and the automotive electronic circuit system;

[0028] A wireless communication module for receiving the start control signal sent by the remote controller;

[0029] A switch control module for turning on the automotive emergency power supply and lighting the automotive electronic circuit system after receiving the start control signal.

[0030] Further, the emergency start device further includes a charging module and a battery protection module, and the charging module and the battery protection module are connected to the battery pack.

[0031] Further, the emergency start device further includes a voltage regulation module for regulating the output voltage of the output interface.

[0032] Further, the emergency start device further includes a microprocessor, which cooperates with the switch control module to diagnose whether the positive and negative electrodes of the output interface are correctly connected to the automotive battery.

[0033] Advantages of the technical solution of the present invention:

[0034] For the vehicle emergency start control method and its emergency start device based on an emergency power supply in the embodiments of the present invention, when the automotive emergency power supply is connected to the vehicle, control actions related to the automotive electronic circuit system can be performed in the engine compartment, and there is no delay caused by the inoperability of the automotive electronic circuit system between operating in the engine compartment and returning to the vehicle for starting operations, avoiding the delay and cumbersome procedures in the existing design due to the inoperability of the electronic circuit system when the automotive battery is lower than 8V and the need to forcibly start an external starting battery to light the electronic circuit system and subsequent operations. Description of the Drawings

[0035] The realization, functional characteristics, and advantages of the objectives of the present invention will be further described with reference to the embodiments and the accompanying drawings.

[0036] Figure 1Flow chart of the vehicle emergency start control method based on an emergency power supply according to an embodiment of the present invention;

[0037] Figure 2 Block diagram of the vehicle emergency start control system based on an emergency power supply according to an embodiment of the present invention; Detailed implementation manners

[0038] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] Embodiment 1

[0040] As Figure 1 shown, an embodiment of the present invention provides a vehicle emergency start control method based on an emergency power supply, and the method includes:

[0041] S101. Connect the output interface of the vehicle emergency power supply to the vehicle battery and the vehicle electronic circuit system;

[0042] S102. When the vehicle battery is lower than 8V, send an opening control signal to the vehicle emergency power supply through a remote controller;

[0043] S103. After receiving the opening control signal, the vehicle emergency power supply turns on and lights up the vehicle electronic circuit system.

[0044] Optionally, after the step that the vehicle emergency power supply turns on and lights up the vehicle electronic circuit system, the method further includes:

[0045] Start the engine through the vehicle start button, repeatedly send the opening control signal and repeatedly start the engine until the engine starts successfully.

[0046] Optionally, when the vehicle battery is not lower than 8V, the vehicle emergency power supply charges the vehicle battery, and the vehicle battery supplies power to the vehicle electronic circuit system.

[0047] Optionally, after the connection of the output interface of the vehicle emergency power supply to the vehicle battery, the method further includes:

[0048] Diagnose whether the positive and negative poles of the output interface and the vehicle battery are correctly connected.

[0049] During the process of diagnosing the positive and negative poles of the battery, specific diagnostic circuits and algorithms are adopted to ensure the accuracy and reliability of the diagnostic results. Schemes and corresponding circuits for whether the vehicle battery is reversely connected during charging:

[0050] 1. Detection scheme and circuit based on a voltage comparator

[0051] A voltage comparator can compare the magnitudes of two input voltages. By reasonably setting the reference voltage and comparing the actual voltages connected to the positive and negative terminals of the battery with the reference voltage, it can be determined whether the connection is reversed.

[0052] Circuit composition and working process

[0053] Circuit composition: It mainly consists of a voltage comparator (such as LM339), voltage-dividing resistors, and a reference voltage source.

[0054] Connection method: Connect the external power supply to the automotive battery. After dividing the voltage across the battery by the voltage-dividing resistors, the divided voltage is input to one input terminal of the voltage comparator; the reference voltage source is connected to the other input terminal of the voltage comparator.

[0055] Judgment logic: When the positive and negative terminals are correctly connected, the voltage comparator outputs a certain level signal (such as a high level); if the connection is reversed, the output level signal changes (such as a low level). This output signal can be used to drive an indicator light or trigger a protection circuit.

[0056] Select appropriate voltage-dividing resistors to ensure that the divided voltage is within the input range of the voltage comparator.

[0057] Set the reference voltage to match the divided voltage when correctly connected.

[0058] Connect the output terminal of the voltage comparator to an indicator light or other control circuits.

[0059] 2. Detection scheme and circuit based on Hall sensors

[0060] A Hall sensor can detect the direction of current. When the external power supply charges the battery, the direction of the current will be different depending on whether the positive and negative terminals are correctly connected. By detecting the direction of the current with a Hall sensor, it can be determined whether the connection is reversed.

[0061] Circuit composition and working process

[0062] Circuit composition: It mainly consists of a Hall sensor, a signal processing circuit, and an output indication circuit.

[0063] Connection method: Install the Hall sensor on the wire of the charging circuit. When current passes through the wire, the Hall sensor will output a signal related to the direction of the current.

[0064] Judgment logic: The signal processing circuit processes the signal output by the Hall sensor, determines the direction of the current based on the characteristics of the signal, and then determines whether the positive and negative terminals are reversed, and the result is displayed through the output indication circuit.

[0065] Select an appropriate Hall sensor and determine the measurement range of the sensor according to the magnitude of the charging current.

[0066] Design a signal processing circuit to amplify and filter the weak signal output by the Hall sensor, etc.

[0067] Connect the output indication circuit, such as using a light-emitting diode to indicate the positive and negative connection status.

[0068] 3. Detection scheme and circuit based on the one-way conductivity of the diode

[0069] Utilize the one-way conductive characteristic of the diode. When the positive and negative poles are correctly connected, the current can pass through the diode; if connected reversely, the diode is cut off and no current passes through the circuit, thereby determining whether the connection is correct.

[0070] Circuit composition and working process

[0071] Circuit composition: mainly composed of a diode, a current-limiting resistor, and an indicator light.

[0072] Connection method: Connect the diode in series in the charging circuit, connect the current-limiting resistor in series with the diode, and connect the indicator light in parallel with the diode.

[0073] Judgment logic: When the positive and negative poles are correctly connected, the diode conducts and the indicator light lights up; if connected reversely, the diode is cut off and the indicator light does not light up.

[0074] Select a suitable diode and determine the rated current of the diode according to the magnitude of the charging current.

[0075] Calculate and select a suitable current-limiting resistor to ensure that the current passing through the diode and the indicator light is within a safe range.

[0076] Connect the indicator light, noting that the rated voltage and current of the indicator light should match the circuit.

[0077] Specifically, the diagnosis of whether the output interface is correctly connected to the positive and negative poles of the vehicle battery specifically includes:

[0078] Send the diagnosis signal of the battery positive and negative poles to the remote control;

[0079] The remote control receives the signal. When the diagnosis signal is a qualified signal, the remote control displays a red light; when the diagnosis signal is an unqualified signal, the remote control displays a green light;

[0080] Regardless of whether the diagnosis signal received by the remote control is qualified or not, as long as the connection button is pressed, the vehicle emergency power supply can be connected to the vehicle electronic circuit system.

[0081] Optionally, the diagnosis of whether the output interface is correctly connected to the positive and negative poles of the vehicle battery specifically includes:

[0082] When the diagnostic signal is a non - qualified signal, the remote controller cannot send a start control signal, and it prompts to correct the connection status of the output interface. During the process of connecting the vehicle emergency power supply to the vehicle, an interlock function between the signal and the start button is implemented to ensure the accuracy and safety of control under specific conditions.

[0083] Embodiment 2

[0084] As Figure 2 shown, an embodiment of the present invention further provides an emergency start device, which is composed of a vehicle emergency power supply 100 and a remote controller 200. The vehicle emergency power supply 100 includes:

[0085] A battery pack 120 for providing a working voltage;

[0086] An output interface 180 for connecting to the vehicle battery 300 and the vehicle electronic circuit system 400;

[0087] A wireless communication module 160 for receiving the start control signal sent by the remote controller 200;

[0088] A switch control module 150, after receiving the start control signal, turns on the vehicle emergency power supply 100 and lights up the vehicle electronic circuit system 400.

[0089] Among them, the emergency start device further includes a charging module 130 and a battery protection module 140, and the charging module 130 and the battery protection module 140 are connected to the battery pack 120.

[0090] Among them, the emergency start device further includes a voltage regulation module 170, and the voltage regulation module 170 is used to regulate the output voltage of the output interface 180.

[0091] Optionally, the emergency start device further includes a microprocessor 110, and the microprocessor 110 cooperates with the switch control module 150 to diagnose whether the positive and negative poles of the output interface 180 are correctly connected to the vehicle battery 300.

[0092] For the vehicle emergency start control method and its emergency start device based on the emergency power supply in the embodiment of the present invention, when the vehicle emergency power supply is connected to the vehicle, control actions related to the vehicle electronic circuit system can be performed in the engine compartment, and there is no delay caused by the inoperative vehicle electronic circuit system between operating in the engine compartment and returning to the vehicle for starting operation, avoiding the delay and cumbersome procedures in the existing design due to the inoperative electronic circuit system when the vehicle battery is lower than 8V and the need to forcibly start an external start battery to light up the electronic circuit system and subsequent operations.

[0093] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A vehicle emergency start control method based on emergency power supply, characterized in that: The method comprises: Connect the output interface of the automobile emergency power supply to the automobile battery and the automobile electronic circuit system; When the car battery is lower than 8V, a start control signal is sent to the car emergency power supply through the remote controller; After receiving the start control signal, the automobile emergency power supply is turned on and the automobile electronic circuit system is illuminated.

2. The vehicle emergency start control method based on emergency power supply according to claim 1 is characterized in that: After the step of turning on the automobile emergency power supply and lighting up the automobile electronic circuit system, the method further includes: The engine is started by pressing the car start button, the start control signal is repeatedly sent and the engine is repeatedly started until the engine starts successfully.

3. The vehicle emergency start control method based on emergency power supply according to claim 1 is characterized in that: When the car battery is not less than 8V, the car emergency power supply charges the car battery, and the car battery supplies power to the car electronic circuit system.

4. The vehicle emergency start control method based on emergency power supply according to claim 1 is characterized in that: After connecting the output interface of the automobile emergency power supply to the automobile battery, the method further comprises: Diagnose whether the output interface is correctly connected to the positive and negative poles of the vehicle battery.

5. The vehicle emergency start control method based on emergency power supply according to claim 4 is characterized in that: The diagnosing whether the output interface is correctly connected to the positive and negative electrodes of the automobile battery specifically includes: Send the diagnosis signal of the positive and negative poles of the battery to the remote control; The remote controller receives the signal, and when the diagnostic signal is a qualified signal, the remote controller displays a red light; when the diagnostic signal is an unqualified signal, the remote controller displays a green light; Regardless of whether the diagnostic signal received by the remote control is qualified, the car emergency power supply can be connected to the car electronic circuit system as long as the on button is pressed.

6. The vehicle emergency start control method based on emergency power supply according to claim 4 is characterized in that: The diagnosing whether the output interface is correctly connected to the positive and negative electrodes of the automobile battery specifically includes: When the diagnosis signal is an unqualified signal, the remote controller cannot send a start control signal, and prompts to correct the connection status of the output interface.

7. An emergency starting device, characterized in that: The vehicle emergency power supply is composed of a vehicle emergency power supply and a remote controller. The vehicle emergency power supply includes: A battery pack for providing operating voltage; Output interface, used to connect with the car battery and car electronic circuit system; A wireless communication module, used for receiving the start control signal sent by the remote controller; The switch control module is used to turn on the vehicle emergency power supply and light up the vehicle electronic circuit system after receiving the start control signal.

8. The emergency starting device according to claim 7, characterized in that: The emergency starting device also includes a charging module and a battery protection module, and the charging module and the battery protection module are connected to the battery pack. 9 . The emergency starting device according to claim 7 , further comprising a voltage regulating module, wherein the voltage regulating module is used to regulate the output voltage of the output interface.

10. The emergency starting device according to claim 7, further comprising a microprocessor, wherein the microprocessor cooperates with the switch control module to diagnose whether the output interface is correctly connected to the positive and negative poles of the vehicle battery.

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