CN-122001073-A - Automobile emergency starting power supply equipment and control method thereof

CN122001073ACN 122001073 ACN122001073 ACN 122001073ACN-122001073-A

Abstract

The application provides an automobile emergency starting power supply device and a control method thereof, wherein the device comprises a charging input module, a charging control module and a control module, wherein the charging input module is configured to be connected to an external input power supply and receive external input voltage, and at least comprises a USB external direct current power supply input interface; the device comprises a voltage conversion module, a super capacitor module, an output connection module, an equipment control module and a charging and starting control module, wherein the voltage conversion module is configured to convert an external input voltage into a voltage suitable for charging an automobile battery, the output connection module is configured to be electrically connected to the automobile battery, the equipment control module is configured to output an operation control signal, the charging and starting control module is configured to control a charging path to be conducted in a charging mode, and a discharging path of the super capacitor to be conducted in a starting mode. The application provides automobile emergency starting power supply equipment, which can supplement power for an automobile battery and charge a super capacitor through at least one external input power source input by a USB interface in a charging mode, and the automobile battery after being charged in the starting mode can be started under the assistance of the super capacitor.

Inventors

ZHANG ZHONGREN
ZHANG CHENGZHI

Assignees

上海广为美线电源电器有限公司

Dates

Publication Date: 20260508
Application Date: 20260209

Claims (11)

1. An automotive emergency start-up power supply apparatus, comprising: the charging input module is configured to be connected to an external input power supply and receive an external input voltage, and at least comprises one path of USB external direct current power supply input interface; the voltage conversion module is configured to boost or buck the external input voltage input by the charging input module into a voltage suitable for charging the automobile battery; the super capacitor module comprises a super capacitor; An output connection module configured to be electrically connected to an automotive battery; the equipment control module is configured to output an operation control signal for a charging mode or a starting mode based on a current operation mode; the charging and starting control module is configured to respond to the working control signal, control the conduction of a path for charging the automobile battery based on the external input voltage in a charging mode, charge the automobile battery and the super capacitor based on the external input voltage, and control the conduction of a discharging path from the super capacitor to the output connection module in a starting mode so as to enable the super capacitor and the charged automobile battery to cooperatively discharge to an automobile starting system.
2. The apparatus according to claim 1, wherein the apparatus control module is further configured to output a voltage conversion control signal based on a result of matching of an input voltage detection signal of the charge input module with a target voltage, and the voltage conversion module is configured to boost or buck-convert the external input voltage to output to the charge and start control module when the external input power source is not matched with the target voltage in response to the voltage conversion control signal.
3. The automotive emergency start-up power supply apparatus of claim 2, wherein the operation control signals include a charge control signal and a start control signal, and the charge and start control module includes a charge control switch and a start control switch; The charge control switch is responsive to the charge control signal to control a path for charging the automotive battery based on the external input voltage to conduct, and the device control module controls a charge current by controlling a duty cycle of the voltage conversion control signal; the starting control switch responds to the starting control signal to control the discharge path from the super capacitor to the output connection module to be conducted.
4. The automotive emergency start-up power supply apparatus of claim 1, wherein the charge and start-up control module is further configured to control, in a start-up mode, conduction of a path for charging the automotive battery based on the external input voltage in response to the operation control signal.
5. The automotive emergency start-up power supply apparatus according to claim 1, wherein the apparatus control module is configured to acquire an input voltage detection signal from the charging input module and a battery voltage detection signal from the output connection module, enter a charging mode when it is determined that an external input power source is currently connected based on the input voltage detection signal and it is determined that a battery charging requirement is satisfied according to the battery voltage detection signal, and exit the charging mode when it is determined that a charging stop requirement is satisfied according to the battery voltage detection signal.
6. The vehicle emergency start-up power supply apparatus of claim 1, wherein the apparatus control module is further configured to allow entry into a start-up mode when it is determined from the battery voltage detection signal of the output connection module that the battery voltage is greater than or equal to a preset start-up demand voltage, the preset start-up demand voltage being less than a full charge voltage of a vehicle battery.
7. The automotive emergency start-up power supply apparatus of claim 1, wherein the supercapacitor module comprises a plurality of the supercapacitors and a charge equalization circuit configured to detect a voltage of each of the supercapacitors and release the supercapacitors for energy release when the voltage of the supercapacitors is above a preset capacitor threshold.
8. The automotive emergency start-up power supply apparatus of claim 1, wherein the control module is further configured to obtain the voltage detection signal of the automotive battery when in a standby mode and the output connection module is connected to a load.
9. The automotive emergency start-up power supply device of claim 1, wherein the USB external dc power input interface comprises A USB-A interface and/or A USB Type-C interface, and the USB external dc power input interface supports at least one of A USB PD protocol, A QC protocol, UFCS fusion fast charge protocol, A VOOC protocol, an SCP protocol, an AFC protocol, and A PE protocol.
10. The automotive emergency start-up power supply apparatus of claim 1, wherein the voltage conversion module comprises a DC-DC buck-boost circuit.
11. A control method of an automotive emergency starting power supply apparatus, characterized by employing the automotive emergency starting power supply apparatus according to any one of claims 1 to 10, the method comprising: When the charging input module receives an external input power supply, the equipment control module determines that the external input power supply is accessed currently based on an input voltage detection signal of the charging input module; When the equipment control module judges that the battery charging requirement is met according to the battery voltage detection signal of the output connection module, the equipment control module enters a charging mode, outputs a voltage conversion control signal to the voltage conversion module based on a matching result of the input voltage detection signal of the charging input module and a target voltage, and outputs a charging control signal to the charging and starting control module; The charging and starting control module responds to the charging control signal and controls the conduction of a path for charging the automobile battery based on the external input voltage, and charges the automobile battery and the super capacitor based on the external input power supply; The equipment control module allows to enter a starting mode when judging that the battery voltage is greater than or equal to a preset starting requirement voltage according to the battery voltage detection signal of the output connection module, and outputs a discharging control signal in the starting mode, wherein the preset starting requirement voltage is smaller than the full charge voltage of the automobile battery; And the charging and starting control module responds to the discharging control signal and controls the discharging path from the super capacitor to the output connection module to be conducted, so that the super capacitor and the charged automobile battery are cooperatively discharged to the automobile starting system.

Description

Automobile emergency starting power supply equipment and control method thereof Technical Field The application relates to the technical field of automobile emergency starting power supplies, in particular to automobile emergency starting power supply equipment and a control method thereof. Background Automobile life is becoming more and more popular, and emergency starting rescue is required for power shortage of automobiles, trucks and the like. The types of various emergency starting power supplies in the market are many, but most of the emergency starting power supplies only use the self-carried battery on the emergency starting power supply as a power supply body, and the emergency starting power supplies must be carried on a vehicle for a long time, and meanwhile, the emergency starting power supplies need to be charged and maintained frequently for a long time to ensure sufficient electric quantity. In case of negligence, when the battery of the emergency starting power supply is insufficient in electric quantity, the automobile is difficult to start. Meanwhile, because the emergency starting power supply battery has certain loss in the electrochemical exchange reaction process, repeated charging can influence the cycle life and the time life of the emergency starting power supply battery, the cost is relatively high for occasional emergency, the emergency starting power supply battery is inconvenient to carry, and the live transportation of high-power mobile power supply equipment is relatively dangerous. Some super-capacitor emergency starting power supplies are also in the market, and the super-capacitor emergency starting power supplies are not provided with energy storage batteries, but are charged through the reverse charging of the automobile battery or small batteries preassembled inside, but are limited in charging mode, and if the electric power of the automobile battery is very low, enough electric energy cannot be provided for the super-capacitors to assist in starting. And the capacity of the super capacitor is smaller, and the super capacitor can only discharge in a short time. When discharging, the automobile battery with a lack of electricity can absorb part of the electric energy. If the starting time is inaccurate, the starting is easy to fail by means of short-time discharge current when the super capacitor is switched on. Currently, various portable power supplies carried by many car owners are increasing. However, most of the mobile power supplies are energy storage power supplies, and do not have voltage for starting the automobile or special automobile starting functions, so that the mobile power supplies cannot be used for rescuing the automobile. When the automobile cannot be started due to power deficiency, the automobile cannot be supplemented with power and started in an auxiliary mode even if the automobile is provided with a power supply in other energy forms. The widely used energy storage charger for supplying power to mobile phones and the like, an electric tool battery pack, a solar panel and the like cannot help the starting of the automobile, and inconvenience is brought to users. Disclosure of Invention Aiming at the problems in the prior art, the application aims to provide an automobile emergency starting power supply device and a control method thereof, and provides an automobile emergency starting power supply device compatible with various types of external input power supplies, wherein in a charging mode, the automobile battery can be charged by the external input power supply and a super capacitor is charged, and in a starting mode, the automobile battery after being charged can be started under the assistance of the super capacitor. The embodiment of the application provides an automobile emergency starting power supply device, which comprises: the charging input module is configured to be connected to an external input power supply and receive external input voltage, and at least comprises one path of USB external direct current power supply input interface; the voltage conversion module is configured to boost or buck the external input voltage input by the charging input module into a voltage suitable for charging the automobile battery; the super capacitor module comprises a super capacitor; An output connection module configured to be electrically connected to an automotive battery; the equipment control module is configured to output an operation control signal for a charging mode or a starting mode based on a current operation mode; The charging and starting control module is configured to respond to the working control signal, control the conduction of a path for charging the automobile battery based on external input voltage in a charging mode and charge the automobile battery and the super capacitor based on the external input voltage, and control the conduction of a discharging path from the super capacitor to the output connection module in a st