CN116176466A - Dual-path power supply charge and discharge control system and method for vehicle storage battery - Google Patents
Dual-path power supply charge and discharge control system and method for vehicle storage battery Download PDFInfo
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- CN116176466A CN116176466A CN202310071480.XA CN202310071480A CN116176466A CN 116176466 A CN116176466 A CN 116176466A CN 202310071480 A CN202310071480 A CN 202310071480A CN 116176466 A CN116176466 A CN 116176466A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The invention discloses a double-circuit power supply charge and discharge control system and method of a vehicle storage battery, which are used for collecting real-time voltage of a driving storage battery and a parking storage battery, a vehicle starting signal, a vehicle control signal and an internal control signal; outputting a corresponding control signal based on a preset control logic according to the acquired real-time voltage and signal; and controlling the opening and closing states of the relays according to the output control signals, and further controlling the charging and discharging of the driving storage battery and the parking storage battery. The invention accurately controls the on-off of the relay circuit according to the collected voltage state of the storage battery, realizes the normal discharging use and timely charging of the two-way power supply of the storage battery, improves the charging efficiency, avoids the condition of power shortage of the driving storage battery and the parking storage battery, and prolongs the service life of the storage battery.
Description
Technical Field
The invention relates to the technical field of vehicle battery control, in particular to a two-way power supply charge and discharge control system and method of a vehicle storage battery.
Background
Medical vehicles, emergency command vehicles, emergency communication vehicles and the like are special commercial vehicles widely applied to markets, and electrical systems of the special commercial vehicles are generally divided into two parts of a driving electrical system and a parking electrical system, wherein the voltage level of the driving electrical system is DC24V, and a lead-acid storage battery is generally adopted for supplying power, and the special commercial vehicles are mainly used for starting a vehicle engine, lighting the vehicle electrical appliances in a driving state and the like; the voltage level of the parking electric system is AC220/380V or DC24V, the power is generally supplied by adopting AC220/380V external commercial power aiming at specific parking equipment, and generally, the power is generally supplied by adopting a DC24V lead-acid storage battery, and the parking electric system is mainly used for vehicle electric illumination and the like in a parking state after the vehicle is flameout.
The lead-acid storage battery for supplying power in the vehicle electrical system has wide application prospect and frequent use, and when the driving time is short, the lead-acid storage battery of the vehicle electrical system, namely the power consumption of the driving storage battery, cannot be quickly supplemented, so that the condition of power shortage is easy to occur; if the lead-acid storage battery of the parking electric system, namely the parking storage battery, is not used for external commercial power during parking, the parking storage battery is used for a long time, and then the condition of power shortage of the parking storage battery can be caused. Whether the storage battery is a driving storage battery or a parking storage battery, if the storage battery cannot be charged in time and the power shortage condition occurs, the storage battery is easy to damage, and high maintenance cost is caused.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a double-circuit power supply charge-discharge control system and method for a vehicle storage battery, which accurately control the on-off of a relay circuit according to the collected voltage state of the storage battery, realize the normal discharge use and timely charging of the double-circuit power supply of the storage battery, improve the charging efficiency, avoid the condition of power shortage of a driving storage battery and a parking storage battery, and prolong the service life of the storage battery.
In a first aspect, the present disclosure provides a dual power charge and discharge control system for a vehicle battery.
A two-way power supply charge-discharge control system for a vehicle battery, comprising:
the voltage acquisition module is used for acquiring real-time voltages of the driving storage battery and the parking storage battery, and vehicle starting signals, vehicle control signals and internal control signals;
the control module is electrically connected with the voltage acquisition module and is used for outputting corresponding control signals based on preset control logic according to the acquired real-time voltage and signals;
and the relay module is electrically connected with the control module and comprises a plurality of relays electrically connected with each device in the vehicle and used for controlling the opening and closing states of the relays according to the output control signals so as to further control the charge and discharge of the driving storage battery and the parking storage battery.
Further technical scheme still includes:
the power module is electrically connected with the voltage acquisition module, the control module and the relay module and is used for supplying power to each module.
According to a further technical scheme, the vehicle starting signal comprises a vehicle ON gear signal and a vehicle start gear signal; the vehicle control signals comprise a forced starting signal S, a forced starting signal S1 outside the driving storage battery and a forced starting signal S2 outside the parking storage battery; the internal control signals comprise a first forced starting signal X1 inside the control system and a second forced starting signal X2 inside the control system.
According to a further technical scheme, in the relay module, after the first relay K1 and the second relay K2 are connected in series, the driving relay system is electrically connected, after the third relay K3 and the fourth relay K4 are connected in series, the heavy current load is electrically connected, after the fifth relay K5 and the sixth relay K6 are connected in series, the positive electrode of the driving storage battery and the positive electrode of the parking storage battery are connected, the power module is connected into the seventh relay K7, and the seventh relay K7 is also connected into a parking storage battery switch closing signal.
Further technical solution, the preset control logic includes:
collecting the voltage V1 of a driving storage battery and the voltage V2 of a parking storage battery, and outputting an isolation control signal K0 when V1 is more than or equal to 27.0V and V2 is more than or equal to 14.0V, or V1 is more than or equal to 14.0V and V2 is more than or equal to 27.0V;
when V1 is more than 22.0V, outputting a low-voltage protection control signal K1; when V1 is less than or equal to 22.5V, an alarm signal B1 is output, and the electric quantity warning lamp of the driving storage battery is controlled to be lighted based on the alarm signal B1; when V2 is more than 21.5V, outputting a low-voltage protection control signal K2; when V2 is less than or equal to 22.0V, outputting an alarm signal B2, and controlling a parking storage battery electric quantity warning lamp to be lighted based on the alarm signal B2;
acquiring a vehicle ON gear signal and a forced starting signal S, and outputting an isolation control signal K0;
acquiring a vehicle ON gear signal and a forced starting signal S1 outside a driving storage battery, or acquiring the vehicle ON gear signal and a first forced starting signal X1 inside a system, and outputting a low-voltage protection control signal K1;
acquiring a vehicle ON gear signal and a forced starting signal S2 outside a parking storage battery, or acquiring a vehicle ON gear signal and a second forced starting signal X2 inside a system, and outputting a low-voltage protection control signal K2;
and acquiring a vehicle start gear signal and outputting a driving engine starting signal K3.
According to a further technical scheme, according to the control signal of output, the open-close state of a plurality of relays is controlled, and then the charge and discharge of driving battery and parking battery are controlled, includes:
when a low-voltage protection control signal K1 is input, the first relay K1 and the second relay K2 are controlled to be closed, and the driving storage battery supplies power to the driving electric appliance system;
when a driving engine starting signal K3 is input, the third relay K3 and the fourth relay K4 are controlled to be closed, and a large-current load is driven;
when an isolation control signal K0 is input, the fifth relay K5 and the sixth relay K6 are controlled to be closed, the driving storage battery is communicated with the parking storage battery, and the driving storage battery and the parking storage battery are charged by a vehicle generator or external commercial power at the same time;
when a parking storage battery switch closing signal is input, the seventh relay K7 is closed, and the parking storage battery is connected; on the contrary, when the parking storage battery switch closing signal is not input, the seventh relay K7 is switched off, and the driving storage battery is switched on.
In a second aspect, the present disclosure provides a dual power charge and discharge control method for a vehicle battery.
A double-circuit power supply charge and discharge control method of a vehicle storage battery comprises the following steps:
collecting real-time voltages of a driving storage battery and a parking storage battery, and a vehicle starting signal, a vehicle control signal and an internal control signal;
outputting a corresponding control signal based on a preset control logic according to the acquired real-time voltage and signal;
and controlling the opening and closing states of the relays according to the output control signals, and further controlling the charging and discharging of the driving storage battery and the parking storage battery.
According to a further technical scheme, the vehicle starting signal comprises a vehicle ON gear signal and a vehicle start gear signal; the vehicle control signals comprise a forced starting signal S, a forced starting signal S1 outside the driving storage battery and a forced starting signal S2 outside the parking storage battery; the internal control signals comprise a first forced starting signal X1 inside the system and a second forced starting signal X2 inside the system.
Further technical solution, the preset control logic includes:
collecting the voltage V1 of a driving storage battery and the voltage V2 of a parking storage battery, and outputting an isolation control signal K0 when V1 is more than or equal to 27.0V and V2 is more than or equal to 14.0V, or V1 is more than or equal to 14.0V and V2 is more than or equal to 27.0V;
when V1 is more than 22.0V, outputting a low-voltage protection control signal K1; when V1 is less than or equal to 22.5V, an alarm signal B1 is output, and the electric quantity warning lamp of the driving storage battery is controlled to be lighted based on the alarm signal B1; when V2 is more than 21.5V, outputting a low-voltage protection control signal K2; when V2 is less than or equal to 22.0V, outputting an alarm signal B2, and controlling a parking storage battery electric quantity warning lamp to be lighted based on the alarm signal B2;
acquiring a vehicle ON gear signal and a forced starting signal S, and outputting an isolation control signal K0;
acquiring a vehicle ON gear signal and a forced starting signal S1 outside a driving storage battery, or acquiring the vehicle ON gear signal and a first forced starting signal X1 inside a system, and outputting a low-voltage protection control signal K1;
acquiring a vehicle ON gear signal and a forced starting signal S2 outside a parking storage battery, or acquiring a vehicle ON gear signal and a second forced starting signal X2 inside a system, and outputting a low-voltage protection control signal K2;
and acquiring a vehicle start gear signal and outputting a driving engine starting signal K3.
According to a further technical scheme, according to the control signal of output, the open-close state of a plurality of relays is controlled, and then the charge and discharge of driving battery and parking battery are controlled, includes:
when a low-voltage protection control signal K1 is input, the first relay K1 and the second relay K2 are controlled to be closed, and the driving storage battery supplies power to the driving electric appliance system;
when a driving engine starting signal K3 is input, the third relay K3 and the fourth relay K4 are controlled to be closed, and a large-current load is driven;
when an isolation control signal K0 is input, the fifth relay K5 and the sixth relay K6 are controlled to be closed, the driving storage battery is communicated with the parking storage battery, and the driving storage battery and the parking storage battery are charged by a vehicle generator or external commercial power at the same time;
when a parking storage battery switch closing signal is input, the seventh relay K7 is closed, and the parking storage battery is connected; on the contrary, when the parking storage battery switch closing signal is not input, the seventh relay K7 is switched off, and the driving storage battery is switched on.
The one or more of the above technical solutions have the following beneficial effects:
1. the invention provides a double-circuit power supply charge-discharge control system and method for a vehicle storage battery, which accurately control the on-off of a relay circuit according to the collected voltage state of the storage battery, realize the normal discharge use and timely charge of the double-circuit power supply of the storage battery, avoid the condition of power shortage of a driving storage battery and a parking storage battery, and prolong the service life of the storage battery.
2. According to the invention, the connection of the driving storage battery and the parking storage battery is controlled by setting the isolation control signal, so that the driving storage battery and the parking storage battery are controlled to be charged simultaneously, the storage battery is charged to the maximum extent, the charging efficiency is improved, and the risk of power shortage of the storage battery is reduced.
3. The invention has the function of detecting the ON-stage signal, when the ON-stage signal is not detected, the system enters the sleep mode, and the signals of S1, S2, X1 and X2 do not need to be detected in real time, so that the power consumption can be reduced to the maximum extent.
4. The invention adopts wide voltage power supply, is suitable for 12V/24V voltage scenes, is not only suitable for a two-way power supply control system, but also suitable for a three-way power supply control system.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
Fig. 1 is a schematic circuit diagram of a dual-power supply charge-discharge control system for a vehicle battery according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a voltage acquisition module and a control module according to a first embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a relay module according to an embodiment of the invention.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Example 1
The embodiment provides a double-circuit power supply charge-discharge control system of vehicle battery, as shown in fig. 1, including voltage acquisition module, control module, relay module and power module, gather real-time voltage information and vehicle start signal, vehicle control signal, the inside control signal of external circuit driving battery, parking battery through voltage acquisition module, based on the voltage information who gathers, utilize the control module who is equipped with corresponding control logic, the switch-on and the closure of the inside each relay of relay module of this system are controlled, realize the charge protection to driving battery and parking battery, realize timely charging, avoid driving battery and parking battery to appear the power shortage condition, prolong the life of battery.
In order to ensure the normal operation of each module, the two-way power supply charge-discharge control system of the embodiment is provided with a power supply module, and the power supply module is electrically connected with the voltage acquisition module, the control module and the relay module to supply power to each module. Preferably, the power module is powered with a wide voltage, and is adapted to the use of DC12V and DC24V vehicles.
In this embodiment, the voltage acquisition module supports no less than 2 paths of voltage acquisition, and can acquire the voltage value of the access power supply, namely, the real-time voltage of the external circuit driving storage battery and the parking storage battery is acquired, the range of the acquired voltage value is DC 5V-DC 28V, and the voltage acquisition module meets the power supply use of a DC12V/DC24 voltage vehicle.
Further, the voltage acquisition module is further used for acquiring a vehicle starting signal, a vehicle control signal and an internal control signal, wherein the vehicle starting signal comprises a vehicle ON gear signal and a vehicle start gear signal, the vehicle control signal comprises a forced starting signal S, a forced starting signal S1 outside a driving storage battery and a forced starting signal S2 outside a parking storage battery, and the internal control signal comprises a first forced starting signal X1 inside a control system and a second forced starting signal X2 inside the control system. The voltage acquisition module acquires the signals specifically to acquire the high level and the low level of each signal, when the voltage acquisition module acquires the high level of a certain signal, the voltage acquisition module is considered to acquire the signal, otherwise, when the voltage acquisition module acquires the low level of a certain signal, the voltage acquisition module is considered to not acquire the signal.
The voltage acquisition module transmits the acquired information to the control module, corresponding control logic is arranged in the control module, and corresponding control signals are output based on the received acquisition signals. As shown in fig. 2, the control logic is:
(1) The method comprises the steps of obtaining the voltage V1 of a driving storage battery and the voltage V2 of a parking storage battery, and outputting an isolation control signal K0 when V1 is more than or equal to 27.0V and V2 is more than or equal to 14.0V, or V1 is more than or equal to 14.0V and V2 is more than or equal to 27.0V. In this embodiment, when any one of the driving battery voltage V1 and the parking battery voltage V2 is higher than 27V and the battery voltage at any one is not lower than 14V, the control module outputs the isolation control signal K0. When any voltage is higher than 27.0V, the engine is started in a driving state of the vehicle, the generator generates electricity and charges the storage battery, the voltage of the storage battery is 28V, or the voltage of the auxiliary storage battery is 27.5V when the commercial power is connected, and the inverter integrated machine charges the auxiliary storage battery when the commercial power is connected, so that the generator or the external commercial power can charge the driving storage battery and the parking storage battery under the condition that the voltage of the auxiliary storage battery is 27.5V. Meanwhile, the voltage of the storage battery is not lower than 14V, so that the storage battery can be protected, and the problem of damage caused by charging under the condition of power shortage is avoided.
(2) And acquiring a vehicle ON gear signal and a forced starting signal S, namely when the acquired vehicle ON gear signal is at a high level, the acquired forced starting signal S is also at the high level, and outputting an isolation control signal K0. In this embodiment, when the vehicle ON range signal is detected, the vehicle start is indicated, and when the forced start signal S is detected, the forced start battery charge is indicated, and the vehicle battery and the parking battery are turned ON as special cases, so that the vehicle can be charged and used simultaneously.
(3) And acquiring the voltage V1 of the driving storage battery, and outputting a low-voltage protection control signal K1 when the voltage V1 is more than 22.0V. When the driving storage battery V1 is detected to be higher than 22.0V, the driving storage battery can be normally used by the vehicle in a driving state, at the moment, the driving electric system operates normally, and when the driving storage battery V1 is detected to be lower than 22.0V, the driving storage battery is prevented from being used due to power shortage in order to ensure the safety of the driving storage battery, and the driving storage battery is not used by the vehicle at the moment.
(4) And acquiring a vehicle ON gear signal and a forced starting signal S1 outside the driving storage battery, namely when the vehicle ON gear signal is acquired to be at a high level, acquiring the forced starting signal S1 outside the driving storage battery to be at the high level, and outputting a low-voltage protection control signal K1. In an emergency, an external forced starting signal S1 of the driving storage battery is externally input, a low-voltage protection control signal K1 is output, and the driving storage battery can be used no matter what voltage the driving storage battery V1 is at, so that the driving storage battery can still be used when the voltage of the driving storage battery is lower than 22V.
(5) And acquiring a vehicle ON gear signal and a first forced starting signal X1 in the control system, namely when the acquired vehicle ON gear signal is at a high level, acquiring the first forced starting signal X1 in the control system and outputting a low-voltage protection control signal K1. In this embodiment, the system itself is provided with a forced start switch, and when the switch is turned on, the first forced start signal X1 in the control system is at a high level, and at this time, a low-voltage protection control signal K1 is also output, so that the driving storage battery V1 can be used no matter what voltage is applied to the driving storage battery. By arranging the forced starting switch, a driver can be ensured to manually control the on and off of the forced switch, and the problem that forced starting cannot be performed due to the fact that the external forced starting signal S1 of the driving storage battery is input outside the vehicle fails and the like is avoided.
(6) And acquiring the voltage V1 of the driving storage battery, and outputting an alarm signal B1 when the voltage V1 is less than or equal to 22.5V, and controlling the electric quantity warning lamp of the driving storage battery to be lighted based on the alarm signal B1. When the voltage of the driving storage battery is lower than 22.5V, the voltage of the driving storage battery of the vehicle is lower, and a driver needs to be reminded of the low voltage at the moment, and the warning lamp is lighted up, so that the phenomenon that the driving storage battery is used again to cause the electricity shortage of the storage battery is avoided.
(7) The voltage V2 of the parking storage battery is obtained, and when V2 is more than 21.5V, a low-voltage protection control signal K2 is output. When the driving storage battery V2 is detected to be higher than 21.5V, the vehicle is indicated to be capable of normally using the parking storage battery in a parking state, at the moment, the parking electric system operates normally, and when the parking storage battery V2 is detected to be lower than 21.5V, the parking storage battery is prevented from being used due to power shortage in order to ensure the safety of the parking storage battery, and the vehicle is not used for the parking storage battery at the moment.
(8) And acquiring a vehicle ON gear signal and a parking battery external forced starting signal S2, namely when the acquired vehicle ON gear signal is at a high level, acquiring the parking battery external forced starting signal S2 also at the high level, and outputting a low-voltage protection control signal K2. In an emergency, the external forced starting signal S2 of the parking storage battery is externally input, the isolation control signal K2 is output, the parking storage battery can be used no matter what voltage the parking storage battery V2 is at, and the parking storage battery can still be used when the voltage of the parking storage battery is lower than 21.5V.
(9) And acquiring a vehicle ON gear signal and a second forced starting signal X2 in the control system, namely when the acquired vehicle ON gear signal is at a high level, acquiring the second forced starting signal X2 in the control system and outputting a low-voltage protection control signal K2. In this embodiment, the system further provides a forced start switch, and when the switch is turned on, the second forced start signal X2 in the control system is at a high level, and at this time, a low-voltage protection control signal K2 is also output, so that the parking storage battery V2 can be used no matter what voltage the parking storage battery is at. By arranging the forced starting switch, a driver can be ensured to manually control the on and off of the forced switch, and the problem that forced starting cannot be performed due to the fact that an external forced starting signal S2 of the parking storage battery is input from the outside of the vehicle fails and the like is avoided.
(10) And acquiring the voltage V2 of the parking storage battery, and outputting an alarm signal B2 when the voltage V2 is less than or equal to 22.0V, and controlling a power warning lamp of the driving storage battery to be lighted based on the alarm signal B2. When the voltage of the parking storage battery is lower than 22.0V, the voltage of the parking storage battery of the vehicle is lower, a driver needs to be reminded of the low voltage, and the warning lamp is turned on, so that the phenomenon that the parking storage battery is used again to cause the power shortage of the storage battery is avoided.
(11) And acquiring a vehicle start gear signal, namely outputting a driving engine starting signal K3 when the acquired vehicle start gear signal is at a high level, wherein the driving engine starting signal K3 is used for driving a relay in the relay module to be closed so as to drive a heavy current load.
Based on the control logic, the control module outputs corresponding control signals according to the input signals, and the control signals control the on and off of each relay in the relay module of the system. In this embodiment, the relay module is electrically connected to the control module, and is also electrically connected to the driving electrical system, the driving battery anode, the parking battery anode, and the power module, specifically, the relay module includes a plurality of relays, as shown in fig. 3, two physical connection nodes in the driving electrical system are behind the driving electrical system distribution box and the driving electrical system mechanical switch, the first relay K1 and the second relay K2 are connected in series and then electrically connected to the driving electrical system, the third relay K3 and the fourth relay K4 are connected in series and then electrically connected to a heavy current load, the fifth relay K5 and the sixth relay K6 are connected in series and then electrically connected to the driving battery anode and the parking battery anode, the power module is connected to the seventh relay K7, the seventh relay K7 is also connected to the parking battery switch closing signal, the driving battery is turned on when the driving electrical system is not actuated (i.e., turned off), and the parking battery is turned on when the parking electrical system is actuated (i.e., turned on) when the parking electrical system is in a normal operation under the driving state and in the parking state. In addition, the ground shown in fig. 3 is the negative electrode of the entire system.
The relay module controls the opening and closing states of the relay according to the received control signals, and the control logic is as follows:
(1) Each relay in the relay module is in an open state in the initial state, when the two-way power supply charge-discharge control system is started, a parking storage battery switch closing signal is connected to a seventh relay K7, when the parking storage battery switch closing signal is not received, the seventh relay K7 is disconnected, the driving storage battery is connected at the moment, and the whole system is powered by the driving storage battery; if a parking storage battery switch closing signal is received, the seventh relay K7 is closed, the parking storage battery is connected at the moment, and the whole system is powered by the parking storage battery.
(2) When a low-voltage protection control signal K1 is input, the first relay K1 and the second relay K2 are closed, and the driving storage battery supplies power to the driving electrical system, so that the driving electrical system operates normally; otherwise, the condition that the driving storage battery is in a low-voltage state at the moment is indicated, the first relay K1 and the second relay K2 are in an on state, and at the moment, the driving electric appliance system does not normally operate, so that the problem of damage caused by long-term use of the driving storage battery when the voltage of the driving storage battery is low is avoided, and the protection effect on the driving storage battery is realized.
Likewise, the control manner of the low voltage protection control signal K2 is the same as that of the low voltage protection control signal K1, and will not be described herein.
(3) When a driving engine starting signal K3 is input, the third relay K3 and the fourth relay K4 are closed, and a large current load is driven.
(4) When the isolation control signal K0 is input, the fifth relay K5 and the sixth relay K6 are closed, at the moment, the driving storage battery is communicated with the parking storage battery, and the vehicle generator or external commercial power can charge the driving storage battery and the parking storage battery at the same time, so that the purpose of timely charging is achieved.
Through the double-circuit power supply charge-discharge control system of vehicle battery that this embodiment provided, can be according to the break-make of the accurate control circuit of voltage state of battery, realize the normal discharge of battery double-circuit power supply and use and in time charge, avoid driving battery and parking battery to appear the insufficient voltage condition, prolong the life of battery, when charging moreover, can realize driving battery and parking electric power storage formula and charge simultaneously, furthest charges the battery, reduce the risk of battery insufficient voltage.
Example two
The embodiment provides a method for controlling charge and discharge of a two-way power supply of a vehicle storage battery, which is realized on the basis of the two-way power supply charge and discharge control system of the vehicle storage battery provided by the embodiment, and specifically comprises the following steps:
step S1, collecting real-time voltages of a vehicle driving storage battery and a parking storage battery, and a vehicle starting signal, a vehicle control signal and an internal control signal;
step S2, outputting a corresponding control signal based on a preset control logic according to the acquired real-time voltage and signal;
and step S3, controlling the opening and closing states of the relays according to the output control signals, and further controlling the driving generator or external commercial power to charge the driving storage battery and the parking storage battery and controlling the driving storage battery and the parking storage battery to discharge.
In this embodiment, in step S1, real-time voltages V1 and V2 of the vehicle running battery and the parking battery are collected, and meanwhile, among the collected vehicle start signal, vehicle control signal and internal control signal, the vehicle start signal includes a vehicle ON gear signal and a vehicle start gear signal, the vehicle control signal includes a forced start signal S, a running battery external forced start signal S1 and a parking battery external forced start signal S2, and the internal control signal includes a control system internal first forced start signal X1 and a control system internal second forced start signal X2.
In step S2, the preset control logic is:
(1) Acquiring a driving storage battery voltage V1 and a parking storage battery voltage V2, and outputting an isolation control signal K0 when V1 is more than or equal to 27.0V and V2 is more than or equal to 14.0V, or V1 is more than or equal to 14.0V and V2 is more than or equal to 27.0V;
(2) Acquiring a vehicle ON gear signal and a forced starting signal S, and outputting an isolation control signal K0;
(3) Acquiring the voltage V1 of a driving storage battery, and outputting a low-voltage protection control signal K1 when the voltage V1 is more than 22.0V;
(4) Acquiring a vehicle ON gear signal and an external forced starting signal S1 of a driving storage battery, and outputting a low-voltage protection control signal K1;
(5) Acquiring a vehicle ON gear signal and a first forced starting signal X1 in a control system, and outputting a low-voltage protection control signal K1;
(6) Acquiring the voltage V1 of the driving storage battery, and outputting an alarm signal B1 when the voltage V1 is less than or equal to 22.5V, and controlling the electric quantity warning lamp of the driving storage battery to be lighted based on the alarm signal B1;
(7) Acquiring the voltage V2 of the parking storage battery, and outputting a low-voltage protection control signal K2 when the voltage V2 is more than 21.5V;
(8) Acquiring a vehicle ON gear signal and a forced starting signal S2 outside a parking storage battery, and outputting a low-voltage protection control signal K2;
(9) Acquiring a vehicle ON gear signal and a second forced starting signal X2 in a control system, and outputting a low-voltage protection control signal K2;
(10) Acquiring the voltage V2 of the parking storage battery, and outputting an alarm signal B2 when the voltage V2 is less than or equal to 22.0V, and controlling an electric quantity warning lamp of the parking storage battery to be lighted based on the alarm signal B2;
(11) And acquiring a vehicle start gear signal and outputting a driving engine starting signal K3.
In step S3, according to the output control signal, the open-close states of the plurality of relays are controlled, so as to control the charge and discharge of the driving storage battery and the parking storage battery, specifically:
(1) When a low-voltage protection control signal K1 is input, the first relay K1 and the second relay K2 are closed, and the driving storage battery supplies power to the driving electric appliance system;
(2) When a driving engine starting signal K3 is input, the third relay K3 and the fourth relay K4 are closed, and a large current load is driven;
(3) When an isolation control signal K0 is input, the fifth relay K5 and the sixth relay K6 are closed, the driving storage battery is communicated with the parking storage battery, and the driving storage battery and the parking storage battery are charged by the vehicle generator or external commercial power at the same time;
(4) When a parking storage battery switch closing signal is input, a seventh relay K7 is closed, the parking storage battery is connected, and the whole system is powered by the parking storage battery; on the contrary, when a parking storage battery switch closing signal is input, the seventh relay K7 is switched off, the driving storage battery is connected, and the whole system is powered by the driving storage battery.
The steps involved in the second to fourth embodiments correspond to the first embodiment, and the detailed description of the second embodiment refers to the related description section of the first embodiment.
It will be appreciated by those skilled in the art that the modules or steps of the invention described above may be implemented by general-purpose computer means, alternatively they may be implemented by program code executable by computing means, whereby they may be stored in storage means for execution by computing means, or they may be made into individual integrated circuit modules separately, or a plurality of modules or steps in them may be made into a single integrated circuit module. The present invention is not limited to any specific combination of hardware and software.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.
Claims (10)
1. A double-circuit power supply charge-discharge control system of a vehicle storage battery is characterized by comprising:
the voltage acquisition module is used for acquiring real-time voltages of the driving storage battery and the parking storage battery, and vehicle starting signals, vehicle control signals and internal control signals;
the control module is electrically connected with the voltage acquisition module and is used for outputting corresponding control signals based on preset control logic according to the acquired real-time voltage and signals;
and the relay module is electrically connected with the control module and comprises a plurality of relays electrically connected with each device in the vehicle and used for controlling the opening and closing states of the relays according to the output control signals so as to further control the charge and discharge of the driving storage battery and the parking storage battery.
2. The two-way power supply charge-discharge control system for a vehicle battery according to claim 1, further comprising:
the power module is electrically connected with the voltage acquisition module, the control module and the relay module and is used for supplying power to each module.
3. The dual power charge and discharge control system of a vehicle battery of claim 1, wherein said vehicle start signal comprises a vehicle ON range signal, a vehicle start range signal; the vehicle control signals comprise a forced starting signal S, a forced starting signal S1 outside the driving storage battery and a forced starting signal S2 outside the parking storage battery; the internal control signals comprise a first forced starting signal X1 inside the control system and a second forced starting signal X2 inside the control system.
4. The two-way power supply charge-discharge control system for a vehicle battery according to claim 1, wherein in the relay module, the first relay K1 and the second relay K2 are connected in series and then electrically connected with a travelling crane system, the third relay K3 and the fourth relay K4 are connected in series and then electrically connected with a heavy current load, the fifth relay K5 and the sixth relay K6 are connected in series and then connected with a positive electrode of the travelling crane battery and a positive electrode of the parking battery, the power module is connected with a seventh relay K7, and the seventh relay K7 is also connected with a switch closing signal of the parking battery.
5. The dual power charge and discharge control system of a vehicle battery of claim 1, wherein said preset control logic comprises:
collecting the voltage V1 of a driving storage battery and the voltage V2 of a parking storage battery, and outputting an isolation control signal K0 when V1 is more than or equal to 27.0V and V2 is more than or equal to 14.0V, or V1 is more than or equal to 14.0V and V2 is more than or equal to 27.0V;
when V1 is more than 22.0V, outputting a low-voltage protection control signal K1; when V1 is less than or equal to 22.5V, an alarm signal B1 is output, and the electric quantity warning lamp of the driving storage battery is controlled to be lighted based on the alarm signal B1; when V2 is more than 21.5V, outputting a low-voltage protection control signal K2; when V2 is less than or equal to 22.0V, outputting an alarm signal B2, and controlling a parking storage battery electric quantity warning lamp to be lighted based on the alarm signal B2;
acquiring a vehicle ON gear signal and a forced starting signal S, and outputting an isolation control signal K0;
acquiring a vehicle ON gear signal and a forced starting signal S1 outside a driving storage battery, or acquiring the vehicle ON gear signal and a first forced starting signal X1 inside a system, and outputting a low-voltage protection control signal K1;
acquiring a vehicle ON gear signal and a forced starting signal S2 outside a parking storage battery, or acquiring a vehicle ON gear signal and a second forced starting signal X2 inside a system, and outputting a low-voltage protection control signal K2;
and acquiring a vehicle start gear signal and outputting a driving engine starting signal K3.
6. The dual-power charge and discharge control system of a vehicle battery according to claim 5, wherein the controlling the opening and closing states of the plurality of relays according to the output control signal, thereby controlling the charge and discharge of the vehicle battery and the parking battery, comprises:
when a low-voltage protection control signal K1 is input, the first relay K1 and the second relay K2 are controlled to be closed, and the driving storage battery supplies power to the driving electric appliance system;
when a driving engine starting signal K3 is input, the third relay K3 and the fourth relay K4 are controlled to be closed, and a large-current load is driven;
when an isolation control signal K0 is input, the fifth relay K5 and the sixth relay K6 are controlled to be closed, the driving storage battery is communicated with the parking storage battery, and the driving storage battery and the parking storage battery are charged by a vehicle generator or external commercial power at the same time;
when a parking storage battery switch closing signal is input, the seventh relay K7 is closed, and the parking storage battery is connected; on the contrary, when the parking storage battery switch closing signal is not input, the seventh relay K7 is switched off, and the driving storage battery is switched on.
7. A double-circuit power supply charge and discharge control method of a vehicle storage battery is characterized by comprising the following steps:
collecting real-time voltages of a driving storage battery and a parking storage battery, and a vehicle starting signal, a vehicle control signal and an internal control signal;
outputting a corresponding control signal based on a preset control logic according to the acquired real-time voltage and signal;
and controlling the opening and closing states of the relays according to the output control signals, and further controlling the charging and discharging of the driving storage battery and the parking storage battery.
8. The method for controlling charge and discharge of a two-way power supply of a vehicle battery according to claim 7, wherein the vehicle start signal includes a vehicle ON range signal and a vehicle start range signal; the vehicle control signals comprise a forced starting signal S, a forced starting signal S1 outside the driving storage battery and a forced starting signal S2 outside the parking storage battery; the internal control signals comprise a first forced starting signal X1 inside the system and a second forced starting signal X2 inside the system.
9. The method for controlling charge and discharge of a two-way power supply of a vehicle battery according to claim 7, wherein the preset control logic comprises:
collecting the voltage V1 of a driving storage battery and the voltage V2 of a parking storage battery, and outputting an isolation control signal K0 when V1 is more than or equal to 27.0V and V2 is more than or equal to 14.0V, or V1 is more than or equal to 14.0V and V2 is more than or equal to 27.0V;
when V1 is more than 22.0V, outputting a low-voltage protection control signal K1; when V1 is less than or equal to 22.5V, an alarm signal B1 is output, and the electric quantity warning lamp of the driving storage battery is controlled to be lighted based on the alarm signal B1; when V2 is more than 21.5V, outputting a low-voltage protection control signal K2; when V2 is less than or equal to 22.0V, outputting an alarm signal B2, and controlling a parking storage battery electric quantity warning lamp to be lighted based on the alarm signal B2;
acquiring a vehicle ON gear signal and a forced starting signal S, and outputting an isolation control signal K0;
acquiring a vehicle ON gear signal and a forced starting signal S1 outside a driving storage battery, or acquiring the vehicle ON gear signal and a first forced starting signal X1 inside a system, and outputting a low-voltage protection control signal K1;
acquiring a vehicle ON gear signal and a forced starting signal S2 outside a parking storage battery, or acquiring a vehicle ON gear signal and a second forced starting signal X2 inside a system, and outputting a low-voltage protection control signal K2;
and acquiring a vehicle start gear signal and outputting a driving engine starting signal K3.
10. The method for controlling charge and discharge of a two-way power supply of a vehicle battery according to claim 8, wherein the controlling the open and close states of the plurality of relays according to the output control signal, thereby controlling charge and discharge of the vehicle battery and the parking battery, comprises:
when a low-voltage protection control signal K1 is input, the first relay K1 and the second relay K2 are controlled to be closed, and the driving storage battery supplies power to the driving electric appliance system;
when a driving engine starting signal K3 is input, the third relay K3 and the fourth relay K4 are controlled to be closed, and a large-current load is driven;
when an isolation control signal K0 is input, the fifth relay K5 and the sixth relay K6 are controlled to be closed, the driving storage battery is communicated with the parking storage battery, and the driving storage battery and the parking storage battery are charged by a vehicle generator or external commercial power at the same time;
when a parking storage battery switch closing signal is input, the seventh relay K7 is closed, and the parking storage battery is connected; on the contrary, when the parking storage battery switch closing signal is not input, the seventh relay K7 is switched off, and the driving storage battery is switched on.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117261689A (en) * | 2023-08-04 | 2023-12-22 | 南京项尚车联网技术有限公司 | Battery voltage detection method and system for battery vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117261689A (en) * | 2023-08-04 | 2023-12-22 | 南京项尚车联网技术有限公司 | Battery voltage detection method and system for battery vehicle |
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