Storage battery parking management circuit and method and vehicle

Abstract

The invention relates to a storage battery parking management circuit and method and a vehicle, and belongs to the technical field of battery management, and the storage battery parking management circuit comprises a monitoring control module which is connected with a vehicle-mounted storage battery and a constant power module and is used for monitoring power supply voltage and power supply current provided by the vehicle-mounted storage battery for the constant power module in a parking state; the MCU module is connected with the monitoring control module and is used for calculating the parking electricity consumption of the vehicle-mounted storage battery based on the power supply voltage and the power supply current, calculating the real-time residual electricity quantity of the vehicle-mounted storage battery based on the parking electricity consumption and the initial residual electricity quantity of the vehicle-mounted storage battery when the vehicle is powered off, and generating a power supply disconnection instruction when the real-time residual electricity quantity is smaller than an electricity quantity threshold value; the electric quantity threshold is determined according to required electric quantity of engine ignition; the monitoring control module is further used for responding to the power supply disconnection instruction to disconnect power supply of the vehicle-mounted storage battery to the constant power module. According to the invention, when the commercial vehicle is parked, power shortage caused by excessive electric energy loss of the vehicle-mounted storage battery due to excessive accessed constant power modules can be prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of battery management, and in particular to a battery parking management circuit, method and vehicle. Background Art

[0002] With the development of intelligent commercial vehicles, the requirements for parking monitoring and remote services are getting higher and higher. Combined with the life needs of commercial vehicle drivers, more and more commercial vehicles need to have on-board batteries connected to normal power when parked.

[0003] When a commercial vehicle is parked, the engine is turned off and the on-board battery cannot be charged. As more and more permanent power modules are connected to the on-board battery, the static power consumption of the on-board battery will increase when the vehicle is parked. This may cause the on-board battery to consume too much power, causing the on-board battery to run low and unable to provide enough power for vehicle ignition. The user needs to use an external power supply to start the vehicle, which is very inconvenient.

[0004] It can be seen that the prior art has a technical problem that the on-board battery of a commercial vehicle runs out of power when the vehicle is parked. Summary of the invention

[0005] In view of this, it is necessary to provide a battery parking management circuit, method, vehicle and computer storage medium to solve the technical problem in the prior art that the on-board battery of a commercial vehicle is depleted when parked.

[0006] In order to solve the above problems, the present invention provides a battery parking management circuit, comprising: The monitoring control module is connected to the vehicle battery and the normal power module respectively, and is used to monitor the supply voltage and current provided by the vehicle battery to the normal power module in the parking state; an MCU module, connected to the monitoring control module, for calculating the parking power consumption of the vehicle-mounted battery based on the power supply voltage and the power supply current, and calculating the real-time remaining power of the vehicle-mounted battery based on the parking power consumption and the initial remaining power of the vehicle-mounted battery when the vehicle is powered off, and generating a power supply disconnection instruction when the real-time remaining power is less than a power threshold; the power threshold is determined according to the power required for engine ignition; The monitoring control module is also used to respond to a power disconnection instruction to disconnect the vehicle-mounted battery from supplying power to the normal power module.

[0007] In a possible implementation, the monitoring and control module includes: A voltage monitoring module is used to monitor the power supply voltage provided by the vehicle battery to the normal power module in the parking state, and transmit the power supply voltage to the MCU module through the CAN bus; A shunt is used to detect the power supply current of the vehicle-mounted battery and transmit the power supply current to the MCU module through the CAN bus; A switch electric control module, used to control the on-board battery and the switch electric module; the switch electric module is used to control the switch power consumption of the vehicle; The normal power control module is used to control the on-board battery and the normal power module.

[0008] In a possible implementation, the monitoring control module includes: electrical connection interfaces J1 to J5, communication interfaces J6-1 and J6-2, a shunt R1, a relay KA1 and a relay KA2, the relay KA1 includes a magnetic switch KM1 and a magnetic switch KM2, and the relay KA2 includes a magnetic switch KM3; The electrical connection interface J1 is respectively connected to the voltage monitoring module and the positive pole of the vehicle battery, the electrical connection interface J2 is respectively connected to one end of the shunt R1 and the negative pole of the vehicle battery, the other end of the shunt R1 is connected to the frame grounding point through the electrical connection interface J3, the two ends of the relay KA1 are respectively connected to the electrical connection interface J1 and the electrical connection interface J3, the two ends of the magnetic switch KM1 are respectively connected to the electrical connection interface J1 and the electrical connection interface J4, the two ends of the magnetic switch KM2 are respectively connected to the electrical connection interface J1 and the electrical connection interface J5, the two ends of the relay KA2 are respectively connected to the electrical connection interface J1 and the MCU module, the two ends of the magnetic switch KM3 are respectively connected to the electrical connection interface J1 and the electrical connection interface J5, and the communication interfaces J6-1 and J6-2 are connected to the CAN bus.

[0009] In a possible implementation manner, a manual switch K1 is further connected between the relay KA1 and the electrical connection interface J3.

[0010] In a possible implementation, when the relay KA1 is powered on, it can control the magnetic switch KM1 and the magnetic switch KM2 to be attracted, and when the relay KA2 is powered on, it can control the magnetic switch KM3 to be attracted.

[0011] In a possible implementation manner, the preset power threshold is the minimum power required for engine ignition.

[0012] The present invention further provides a battery parking management method, which is applied to the battery parking management circuit described in any of the above embodiments. The battery parking management method includes: Monitoring the power supply voltage and the power supply current provided by the vehicle battery to the normal power module in the parking state, and calculating the parking power consumption of the vehicle battery based on the power supply voltage and the power supply current; Calculating the real-time remaining power of the on-board battery based on the parking power consumption and the initial remaining power of the on-board battery when the vehicle is powered off; When the real-time remaining power is less than a preset power threshold, the vehicle-mounted battery is disconnected from supplying power to the normal power module to ensure that the real-time remaining power of the vehicle-mounted battery meets the power required for ignition of the engine.

[0013] In a possible implementation manner, after disconnecting the vehicle-mounted storage battery from supplying power to the permanent power module, the method further includes: When the vehicle is powered on again, a low battery reminder is issued.

[0014] In a possible implementation, when the real-time remaining power is less than a preset power threshold, the method further includes: A low battery reminder is sent to the driver client via network communication.

[0015] The present invention further provides a vehicle, comprising a battery parking management circuit, wherein the battery parking management circuit is the battery parking management circuit described in any of the aforementioned embodiments.

[0016] The beneficial effects of the present invention are as follows: the battery parking management circuit provided by the present invention monitors the power supply voltage and power supply current provided by the on-board battery to the permanent power module in the parking state, calculates the parking power consumption of the on-board battery based on the power supply voltage and the power supply current, and calculates the real-time remaining power of the on-board battery based on the parking power consumption and the initial remaining power of the on-board battery when the vehicle is powered off; when the real-time remaining power is less than a preset power threshold, the monitoring and control module is controlled to disconnect the on-board battery from supplying power to the permanent power module to ensure that the real-time remaining power of the on-board battery meets the power demand for ignition of the engine, and can prevent the on-board battery from losing power and being depleted due to excessive power loss of the on-board battery due to too many permanent power modules being connected when the commercial vehicle is parked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the structure of a battery parking management circuit provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a monitoring control module provided by an embodiment of the present invention; Figure 3 A battery parking management circuit diagram provided by an embodiment of the present invention; Figure 4 A flowchart of a battery parking management method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0020] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] A specific embodiment of the present invention, as Figure 1 As shown, a battery parking management circuit is disclosed, comprising: The monitoring control module 101 is connected to the vehicle battery 102 and the permanent power module 103 respectively, and is used to monitor the supply voltage and current provided by the vehicle battery 102 to the permanent power module 103 in the parking state; The MCU module 104 is connected to the monitoring control module 101, and is used to calculate the parking power consumption of the vehicle-mounted battery 102 based on the power supply voltage and the power supply current, and calculate the real-time remaining power of the vehicle-mounted battery 102 based on the parking power consumption and the initial remaining power of the vehicle-mounted battery 102 when the vehicle is powered off, and generate a power supply disconnection instruction when the real-time remaining power is less than a power threshold; the power threshold is determined according to the power required for engine ignition; The monitoring control module 101 is further configured to disconnect the vehicle-mounted storage battery 102 from supplying power to the normal power module 103 in response to a power disconnection instruction.

[0022] In the embodiment of the present invention, the battery parking management circuit provided is used to manage the power consumption of the battery when the commercial vehicle is parked, wherein the permanent power module 103 refers to the module that needs to use power continuously when the vehicle is parked, including but not limited to the vehicle air conditioner, vehicle lighting, vehicle monitoring equipment, etc. The reason why the vehicle battery is depleted is generally due to the long-term use of the permanent power module. Therefore, the monitoring control module 101 can monitor the power supply voltage and power supply current provided by the vehicle battery 102 to the permanent power module 103 in the parking state, and send the power supply voltage and power supply current to the MC through the CAN bus. U module 104, MCU module 104 calculates the real-time remaining power of the vehicle battery 102 by calculating the power consumption of the normal power module 103 and combining the initial remaining power of the vehicle battery when the vehicle is powered off. When the real-time remaining power is less than the power threshold, a power supply disconnection instruction is generated and sent to the control monitoring control module 101. The control monitoring control module 101 disconnects the power supply to the normal power module 103 based on the power supply disconnection instruction, wherein the power threshold is determined according to the required power for engine ignition, such as the minimum required power for engine ignition.

[0023] The battery parking management circuit provided by the present invention monitors the power supply voltage and power supply current provided by the on-board battery to the permanent power module in the parking state, calculates the parking power consumption of the on-board battery based on the power supply voltage and power supply current, and calculates the real-time remaining power of the on-board battery based on the parking power consumption and the initial remaining power of the on-board battery when the vehicle is powered off. When the real-time remaining power is less than a preset power threshold, the monitoring control module is controlled to disconnect the on-board battery from supplying power to the permanent power module to ensure that the real-time remaining power of the on-board battery meets the power demand for ignition of the engine, and can prevent the on-board battery from losing power due to excessive power loss and power shortage caused by too many permanent power modules connected when the commercial vehicle is parked.

[0024] Optional, such as Figure 2 As shown, the monitoring control module 101 includes: The voltage monitoring module 105 is used to monitor the supply voltage provided by the vehicle battery 102 to the normal power module 103 in the parking state, and transmit the supply voltage to the MCU module 104 through the CAN bus; The current divider 106 is used to detect the supply current of the vehicle battery 102 and transmit the supply current to the MCU module 104 through the CAN bus; The switch power control module 107 is used to control the on-board battery 102 and the switch power module 108 ; the switch power module 108 is used to control the switch power consumption of the vehicle.

[0025] The normal power control module 109 is used to control the on-board battery 102 and the normal power module 103 to be turned on and off.

[0026] In the embodiment of the present invention, combined with Figure 3 The monitoring control module 101 includes: electrical connection interfaces J1 to J5, communication interfaces J6-1 and J6-2, a shunt R1, a relay KA1 and a relay KA2, the relay KA1 includes a magnetic switch KM1 and a magnetic switch KM2, and the relay KA2 includes a magnetic switch KM3; The electrical connection interface J1 is respectively connected to the voltage monitoring module and the positive pole of the vehicle battery, the electrical connection interface J2 is respectively connected to one end of the shunt R1 and the negative pole of the vehicle battery, the other end of the shunt R1 is connected to the frame grounding point through the electrical connection interface J3, the two ends of the relay KA1 are respectively connected to the electrical connection interface J1 and the electrical connection interface J3, the two ends of the magnetic switch KM1 are respectively connected to the electrical connection interface J1 and the electrical connection interface J4, the two ends of the magnetic switch KM2 are respectively connected to the electrical connection interface J1 and the electrical connection interface J5, the two ends of the relay KA2 are respectively connected to the electrical connection interface J1 and the MCU module, the two ends of the magnetic switch KM3 are respectively connected to the electrical connection interface J1 and the electrical connection interface J5, and the communication interfaces J6-1 and J6-2 are connected to the CAN bus.

[0027] A manual switch K1 is also connected between the relay KA1 and the electrical connection interface J3.

[0028] When relay KA1 is energized, it can control the magnetic switch KM1 and the magnetic switch KM2 to be attracted. When relay KA2 is energized, it can control the magnetic switch KM3 to be attracted.

[0029] The voltage monitoring module is used to monitor the voltage at both ends of the vehicle battery and transmit the voltage signal to the MCU module in real time; The shunt R1 is connected between the negative pole of the battery and the ground terminal of the vehicle to monitor the working current of the vehicle and transmit the current signal to the MCU module in real time; The MCU module calculates the power change of the vehicle battery based on the real-time data of the power supply voltage and current. The battery parameters calibrated to the MCU through the CAN bus are combined with the initial remaining power of the vehicle battery when the vehicle is powered off to calculate the real-time remaining power of the vehicle battery. The relay coil KA1 is used for switch power control. When the driver turns on K1, the coil KA1 is connected, KM1 and KM2 are connected, interfaces J4 and J5 are powered normally, and the switch power supply function is started; When the switch is turned on, the MCU module determines that the real-time remaining power of the vehicle battery is at a safe level, controls KA2 to be attracted, and KM3 to be turned on; When the driver stops the car and turns off switch K1, KA1 is disconnected, KM1 and KM2 are disconnected, and switch interface J4 is powered off. Since KM3 is still in the closed state at this time, the normal power equipment is powered normally.

[0030] After the driver parks the vehicle, K1 is turned off, MCU controls KA2 to be turned on, KM3 is connected to the normal power supply, MCU goes into sleep mode and automatically wakes up at a certain frequency to test the real-time remaining power of the vehicle battery. When it is detected that the real-time remaining power of the vehicle battery is less than a certain safety preset value, such as the minimum required power for generator ignition, MCU sends a low-power reminder to TBOX through the CAN network, and TBOX sends the information to the cloud to send reminders to the driver's mobile device. At the same time, KA2 and KM3 are controlled to be disconnected, and the normal power equipment of the whole vehicle is powered off. MCU records the real-time remaining power of the vehicle battery at this time and starts sleep mode. When the driver turns on the K1 switch again, KA1 is turned on, KM1 and KM2 are turned on at the same time, the vehicle's normal power and switch power are turned on at the same time, and the MCU sends the SOC value to the instrument or TBOX through the CAN bus module. The instrument or TBOX sends a prompt message to the driver: The battery is low, please start the engine as soon as possible to charge.

[0031] The present invention adopts an integrated power management solution, which integrates battery data collection, data processing, and power control. The controller has a static sleep function, which can minimize the static power consumption of the whole vehicle and extend the parking time of the whole vehicle. A dual relay is used to simultaneously turn on the normal power and switch power network of the whole vehicle, and when the switch power network is turned off, the normal power supply of the normal power network can be guaranteed. The remaining power of the battery can be monitored in real time in the whole vehicle parking scene, and it can independently judge whether the remaining power of the battery can meet the engine starting requirements. According to the judgment result, the whole vehicle power network can be controlled to be closed to keep the battery power safe and avoid the whole vehicle from breaking down due to long-term parking. When the commercial vehicle is parked, the battery power status can be monitored, and a protection strategy can be provided at the moment when the battery is low on power and a reminder can be sent to the user. When the driver turns on the switch power next time, the switch power and the normal power can be connected at the same time, and a low-power warning can be sent to the driver to prompt the driver to quickly start the engine to replenish power to avoid breaking down.

[0032] As a possible implementation mode of the present invention, Figure 4 As shown, in this embodiment, a battery parking management method is provided, which is applied to the battery parking management circuit of any of the above embodiments, including: S401, monitoring the power supply voltage and current provided by the vehicle battery to the normal power module in the parking state, and calculating the parking power consumption of the vehicle battery based on the power supply voltage and the power supply current; S402, calculating the real-time remaining power of the vehicle battery based on the parking power consumption and the initial remaining power of the vehicle battery when the vehicle is powered off; S403, when the real-time remaining power is less than the preset power threshold, the vehicle-mounted battery is disconnected from supplying power to the normal power module to ensure that the real-time remaining power of the vehicle-mounted battery meets the power required for ignition of the engine.

[0033] In an embodiment of the present invention, by monitoring the power supply voltage and power supply current provided by the on-board battery to the permanent power module in the parking state, the parking power consumption of the on-board battery is calculated based on the power supply voltage and power supply current, and the real-time remaining power of the on-board battery is calculated based on the parking power consumption and the initial remaining power of the on-board battery when the vehicle is powered off. When the real-time remaining power is less than a preset power threshold, the monitoring control module is controlled to disconnect the on-board battery from supplying power to the permanent power module to ensure that the real-time remaining power of the on-board battery meets the power demand for ignition of the engine, which can prevent the on-board battery from losing power and running out of power due to excessive power loss caused by too many permanent power modules being connected when the commercial vehicle is parked.

[0034] Optionally, after disconnecting the vehicle battery from supplying power to the normal power module, the method includes: When the vehicle is powered on again, a low battery reminder is issued.

[0035] Furthermore, when the real-time remaining power is less than a preset power threshold, the method includes: A low battery reminder is sent to the driver client via network communication.

[0036] In an embodiment of the present invention, when the real-time remaining power of the vehicle battery is less than a preset power threshold, the driver can be reminded to start the engine in time to charge the vehicle battery. Optionally, when the vehicle is powered on again, a low battery reminder can be sent to the driver through the dashboard or TBOX, or a low battery reminder can be sent directly to the driver's client through network communication to prevent the driver from being unaware of the low battery and continuing to use the vehicle battery to power the normal power module, causing the vehicle battery to run out of power.

[0037] The present invention also provides a vehicle accordingly, comprising a battery parking management circuit, wherein the battery parking management circuit is the battery parking management circuit described in any of the aforementioned embodiments, and can perform parking management on the vehicle-mounted battery according to the battery parking management method in the aforementioned embodiments.

[0038] The above are only preferred specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A battery parking management circuit, characterized in that: include: The monitoring control module is connected to the vehicle battery and the normal power module respectively, and is used to monitor the supply voltage and current provided by the vehicle battery to the normal power module in the parking state; an MCU module, connected to the monitoring control module, for calculating the parking power consumption of the vehicle-mounted battery based on the power supply voltage and the power supply current, and calculating the real-time remaining power of the vehicle-mounted battery based on the parking power consumption and the initial remaining power of the vehicle-mounted battery when the vehicle is powered off, and generating a power supply disconnection instruction when the real-time remaining power is less than a power threshold; the power threshold is determined according to the power required for engine ignition; The monitoring control module is also used to respond to a power disconnection instruction to disconnect the vehicle-mounted battery from supplying power to the normal power module.

2. The battery parking management circuit according to claim 1, characterized in that: The monitoring control module comprises: A voltage monitoring module is used to monitor the power supply voltage provided by the vehicle battery to the normal power module in the parking state, and transmit the power supply voltage to the MCU module through the CAN bus; A shunt is used to detect the power supply current of the vehicle-mounted battery and transmit the power supply current to the MCU module through the CAN bus; A switch electric control module, used to control the on-board battery and the switch electric module; the switch electric module is used to control the switch power consumption of the vehicle; The normal power control module is used to control the on-board battery and the normal power module.

3. The battery parking management circuit according to claim 2, characterized in that: The monitoring control module includes: electrical connection interfaces J1 to J5, communication interfaces J6-1 and J6-2, a shunt R1, a relay KA1 and a relay KA2, wherein the relay KA1 includes a magnetic switch KM1 and a magnetic switch KM2, and the relay KA2 includes a magnetic switch KM3; The electrical connection interface J1 is respectively connected to the voltage monitoring module and the positive pole of the vehicle battery, the electrical connection interface J2 is respectively connected to one end of the shunt R1 and the negative pole of the vehicle battery, the other end of the shunt R1 is connected to the frame grounding point through the electrical connection interface J3, the two ends of the relay KA1 are respectively connected to the electrical connection interface J1 and the electrical connection interface J3, the two ends of the magnetic switch KM1 are respectively connected to the electrical connection interface J1 and the electrical connection interface J4, the two ends of the magnetic switch KM2 are respectively connected to the electrical connection interface J1 and the electrical connection interface J5, the two ends of the relay KA2 are respectively connected to the electrical connection interface J1 and the MCU module, the two ends of the magnetic switch KM3 are respectively connected to the electrical connection interface J1 and the electrical connection interface J5, and the communication interfaces J6-1 and J6-2 are connected to the CAN bus.

4. The battery parking management circuit according to claim 3, characterized in that: A manual switch K1 is also connected between the relay KA1 and the electrical connection interface J3.

5. The battery parking management circuit according to claim 3, characterized in that: When the relay KA1 is powered on, the magnetic switch KM1 and the magnetic switch KM2 can be controlled to be attracted. When the relay KA2 is powered on, the magnetic switch KM3 can be controlled to be attracted.

6. The battery parking management circuit according to claim 1, characterized in that: The preset power threshold is the minimum power required for engine ignition.

7. A battery parking management method, applied to the battery parking management circuit according to any one of claims 1 to 6, characterized in that: The method comprises: Monitoring the power supply voltage and the power supply current provided by the vehicle battery to the normal power module in the parking state, and calculating the parking power consumption of the vehicle battery based on the power supply voltage and the power supply current; Calculating the real-time remaining power of the on-board battery based on the parking power consumption and the initial remaining power of the on-board battery when the vehicle is powered off; When the real-time remaining power is less than a preset power threshold, the vehicle-mounted battery is disconnected from supplying power to the normal power module to ensure that the real-time remaining power of the vehicle-mounted battery meets the power required for ignition of the engine.

8. The battery parking management method according to claim 7, characterized in that: After disconnecting the vehicle-mounted storage battery from supplying power to the permanent power module, the method further includes: When the vehicle is powered on again, a low battery reminder is given.

9. The battery parking management method according to claim 7, characterized in that: When the real-time remaining power is less than a preset power threshold, the method further includes: A low battery reminder is sent to the driver client via network communication.

10. A vehicle, characterized in that: It comprises a battery parking management circuit, wherein the battery parking management circuit is the battery parking management circuit of any one of claims 1-6.

Images