CN218161834U - Automobile storage battery starting system - Google Patents
Automobile storage battery starting system Download PDFInfo
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- CN218161834U CN218161834U CN202220567437.3U CN202220567437U CN218161834U CN 218161834 U CN218161834 U CN 218161834U CN 202220567437 U CN202220567437 U CN 202220567437U CN 218161834 U CN218161834 U CN 218161834U
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Abstract
The utility model relates to an automobile storage battery starting system, which comprises a starting module, a charging and discharging management module, a super capacitor module and a storage battery; the charge and discharge management module is respectively in signal connection with the super capacitor module, the storage battery and the automobile storage battery; the super capacitor module with the battery is and connects in the structure of connecting in parallel the input of start module is used for selecting one earlier on the start module discharges, the input of car storage battery is connected to the output of start module, is used for receiving the super capacitor module or during the discharge current of battery, to car storage battery input start signal, control the car storage battery starts. This openly can realize instantaneous start car storage battery under extremely cold environment, reliability and stability are higher.
Description
Technical Field
The utility model relates to an automobile start control technical field, concretely relates to automobile storage battery start-up system.
Background
The automobile battery usually refers to an automobile lead-acid battery, which is used for supplying power to start an engine, the working temperature range of the automobile lead-acid battery is-20 ℃ to 50 ℃, and the automobile lead-acid battery cannot normally work and supply power in an extremely cold environment, such as-55 ℃. At present, the problem that an automobile storage battery cannot work under the extremely cold environment mainly has the following two solving methods:
the first mode is that a heating module is configured for the automobile storage battery, the automobile storage battery is heated through the heating module in an extremely cold environment, so that the automobile storage battery is heated to a workable temperature range, but in the extremely cold environment, an automobile power supply cannot provide sufficient power for the heating module, the heating efficiency of the heating module in the extremely cold environment is extremely low, the heating speed of the automobile storage battery is very low, the whole heating process is very long in time consumption, and the effect of immediately starting the automobile cannot be achieved.
The second mode is to use a super capacitor to supply power for the automobile storage battery, the super capacitor can realize instantaneous discharge in a low-temperature environment and can quickly supply power for the automobile storage battery, but the super capacitor has a serious problem of power consumption for 72 hours, cannot store energy for a long time, needs to temporarily charge the super capacitor when the automobile is started, has a long charging time and cannot start the automobile all weather and instantly.
In summary, in the prior art, the vehicle cannot be started immediately in the extremely cold low temperature environment, which brings inconvenience to the use of the vehicle in the extremely cold environment.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the disclosed aim is to provide an automobile battery starting system. This openly can realize the instantaneous start car storage battery under the extremely cold environment, and reliability and stability are higher.
The utility model discloses an automobile storage battery start-up system, include: the system comprises a starting module, a charge-discharge management module, a super capacitor module and a storage battery;
the charge and discharge management module is in signal connection with the super capacitor module, the storage battery and the automobile storage battery respectively;
the super capacitor module and the storage battery are connected in parallel and are connected to the input end of the starting module, the super capacitor module and the storage battery are used for selecting one direction to discharge to the starting module, the output end of the starting module is connected with the input end of an automobile storage battery, and the super capacitor module and the storage battery are used for inputting a starting signal to the automobile storage battery when receiving the discharging current of the super capacitor module or the storage battery and controlling the automobile storage battery to start;
the input end of the super capacitor module is respectively connected with an external power supply, an automobile storage battery and the storage battery and is used for being charged by external voltage, automobile storage battery voltage or storage battery voltage; and the charge and discharge management module is used for controlling an external power supply and an automobile storage battery or the storage battery to charge the super capacitor module.
Preferably, the automobile battery starting system further comprises:
the temperature detection module is in signal connection with the charge and discharge management module, and is used for acquiring an ambient temperature and inputting the ambient temperature into the charge and discharge management module, a first temperature threshold value m is preset in the charge and discharge management module, and when the ambient temperature is higher than the first temperature threshold value m, the charge and discharge management module controls the storage battery to discharge to the starting module; and when the ambient temperature is equal to or lower than the first temperature threshold m, the charge and discharge management module controls the super capacitor module to discharge to the starting module.
Preferably, the charge and discharge management module calculates a required charge time of the super capacitor module
Wherein c represents the capacitance of the supercapacitor module, v 1 Representing a charging power of the supercapacitor module;
the charging and discharging management module acquires the change trend of the environmental temperature in a certain time period before the current moment according to the change curve of the environmental temperature, and acquires the reduction rate v of the environmental temperature when the change trend of the environmental temperature is reduced 2 And calculating to obtain a second temperature threshold n = t 1 *v 2 + m; when the environment temperature is reduced to the second temperature threshold value n, the charging and discharging management module controls an external power supply, an automobile storage battery or the storage battery to charge the super capacitor module
Preferably, when the charge and discharge management module controls an external power supply and an automobile storage battery or the storage battery is used for charging the super capacitor module, whether the external power supply is connected or not is detected firstly, if so, the external power supply is controlled to charge the super capacitor module, otherwise, the automobile storage battery and the residual electric quantity of the storage battery are further detected and compared, and one of the storage battery and the super capacitor module with more residual electric quantity is selected to charge the super capacitor module.
Preferably, the automobile battery starting system further comprises;
and the starting management module is in communication connection with the charging and discharging management module and is in signal connection with the starting module.
Preferably, the input end of the storage battery is respectively connected with an external power supply and an automobile storage battery and is used for charging by accessing external voltage or automobile storage battery voltage.
Preferably, the super capacitor module includes a main capacitor unit and at least one backup capacitor unit connected in parallel with the main capacitor unit, and the charge and discharge management module controls the super capacitor module to discharge to the start module, and determines whether the main capacitor unit fails, if so, the backup capacitor unit is used to discharge to the start module, otherwise, the main capacitor unit is used to discharge to the start module.
Preferably, the main capacitor unit includes p discharge capacitors connected in series one by one, and a voltage drop across each discharge capacitor is u 1 、u 2 ...u p Selecting the maximum value and the minimum value as u respectively max And u min (ii) a A voltage drop threshold u is preset in the charge and discharge management module d When u is max -min≥u d And if not, judging that the main capacitor unit is not in fault.
Preferably, the charge and discharge management module detects the automobile storage battery and the residual capacity of the storage battery, when the residual capacity of the automobile storage battery is smaller than a preset storage battery capacity threshold value, and when the residual capacity of the storage battery is smaller than the preset storage battery capacity threshold value, the storage battery stops to charge the super capacitor module, and low-capacity alarm information is displayed.
Preferably, the storage battery is a lithium battery.
The utility model discloses an automobile storage battery start-up system, its advantage lies in, this is disclosed through setting up super capacitor module and battery and parallelly connecting at the structure of start-up module, the charge-discharge management module can select battery or super capacitor module to come to discharge to the start-up module wherein all the way, if the preferred battery that uses under normal atmospheric temperature environment comes for the start-up module power supply, when being in extremely cold low temperature environment, use super capacitor module to come for the start-up module power supply, utilize super capacitor's instantaneous discharge and low temperature resistant characteristic, realize automobile storage battery instantaneous start under extremely cold environment. And the super capacitor module has multiple charging modes, and when the residual electric capacity of the charge and discharge management module is smaller than a preset electric capacity threshold value, the charge and discharge management module controls each module to charge the super capacitor module in time, so that the super capacitor module keeps a high electric capacity state to meet the discharge requirement during instant starting. This is disclosed through setting up two start-up passageways of battery and super capacitor module, and charge and discharge management module can select one of them start-up passageway and come the start-up module discharge start, and can be lastingly charges the super capacitor module, makes it maintain at the high capacitance state, satisfies the requirement of the instantaneous start-up of car, and reliability and stability are better, can be applicable to in extremely cold low temperature environment well, ensure that the car stably starts in extremely cold low temperature environment.
Drawings
FIG. 1 is a schematic structural diagram of an automobile battery starting system according to the present disclosure.
Description of reference numerals: 1-a starting module, 2-a charging and discharging management module, 3-a super capacitor module, 4-a storage battery, 5-an automobile storage battery, 6-an external power supply and 7-a starting management module.
Detailed Description
As shown in figure 1, the automobile storage battery starting system comprises a starting module, a charge and discharge management module, a super capacitor module and a storage battery.
The charging and discharging management module is a conventional lithium battery charging and discharging management unit, is respectively in signal connection with the super capacitor module, the storage battery and the automobile storage battery, and is used for monitoring the residual capacitance and the storage capacity of the super capacitor module, the storage battery and the automobile storage battery and performing charging management on the super capacitor module, the storage battery and the automobile storage battery.
The super capacitor module and the storage battery are connected in parallel and are connected to the input end of the starting module, the super capacitor module is used for selecting one-way discharging of the starting module, specifically, the current output end of the storage battery is connected to the input end of the starting module, and the output end of the super capacitor module is also connected to the input end of the starting module, so that the starting module forms two starting paths which are respectively a storage battery starting channel and a super capacitor starting channel. The output end of the starting module is connected with the input end of the automobile storage battery and used for inputting a starting signal to the automobile storage battery when the starting module receives the discharging current of the super capacitor module or the storage battery, so that the automobile storage battery is controlled to be started, and further an engine of an automobile is started.
External power source, car storage battery and battery are connected respectively to super capacitor module's input for super capacitor module can insert external voltage, car storage battery voltage or battery voltage charge, and charge-discharge management module real-time detection super capacitor module's residual electric capacity, and when super capacitor module's residual electric capacity is less than predetermined capacitance threshold value, if when 75%, super capacitor module control external power source, car storage battery or battery charge for super capacitor module.
This is disclosed through setting up super capacitor module and battery and connecting in the structure of start module, and the charge-discharge management module can select for use battery or super capacitor module wherein to discharge to start module all the way, if the preferred battery that uses under normal atmospheric temperature environment comes for the start module power supply, when being in extremely cold low temperature environment, uses super capacitor module to come for the start module power supply, utilizes super capacitor's instantaneous discharge and low temperature resistant characteristic, realizes car storage battery instantaneous start under the extremely cold environment. And the super capacitor module has multiple charging modes, and when the residual electric capacity of the charge and discharge management module is smaller than a preset electric capacity threshold value, the charge and discharge management module controls each module to charge the super capacitor module in time, so that the super capacitor module keeps a high electric capacity state to meet the discharge requirement during instant starting. This is disclosed through setting up two start-up passageways of battery and super capacitor module, and charge and discharge management module can select one of them start-up passageway and come the start-up module discharge start, and can be lastingly charges the super capacitor module, makes it maintain at the high capacitance state, satisfies the requirement of the instantaneous start-up of car, and reliability and stability are better, can be applicable to in extremely cold low temperature environment well, ensure that the car stably starts in extremely cold low temperature environment.
Further, in this embodiment, the starting system for the automobile battery further includes:
the temperature detection module can select a temperature sensor for use, is arranged on the body of the automobile and is used for detecting and acquiring the ambient temperature. The temperature detection module is in signal connection with the charging and discharging management module 2 and is used for inputting the detected temperature signal into the charging and discharging management module 2. In a specific embodiment, the first temperature threshold m is preset in the charge and discharge management module 2, and in the specific embodiment, the first temperature threshold m may be set to-20 ℃, and when the ambient temperature is higher than-20 ℃, the first temperature threshold m represents that the storage battery 4 can normally perform a discharging action at the current ambient temperature of the automobile, so that the charge and discharge management module 2 controls the storage battery 4 to discharge to the starting module 1, so as to save the power consumption of the system. When the environmental temperature is equal to or lower than-20 ℃, the temperature of the current environment of the automobile is lower, in order to ensure the starting stability of the automobile, the charging and discharging management module 2 controls the super capacitor module 3 to discharge to the starting module 1, and the discharging starting process is stably carried out by utilizing the stable characteristic of the super capacitor in the low-temperature environment. Through setting up first temperature threshold value m, use battery 4 normal discharge when ambient temperature is higher, can save system's power consumption, use super capacitor module 3 to discharge and start under low temperature environment, ensure that the start-up work that discharges goes on steadily.
In order to save the power consumption of the system, the super capacitor module 3 is in a closed state in an environment with a higher temperature, and the super capacitor module 3 needs to be charged for a certain time, so that the super capacitor module 3 needs to be charged in advance according to the ambient temperature in order to meet the use requirement of the instant start of the automobile.
In order to solve the problem of charging the super capacitor module 3 in advance, in this embodiment, the charging and discharging management module 2 calculates the required charging time of the super capacitor module 3
Wherein c represents the capacitance of the supercapacitor module 3, v 1 Represents the charging power and the charging time t of the super capacitor module 3 1 Indicating the time required for the supercapacitor module 3 to go from empty to full charge.
The charge and discharge management module 2 obtains a change trend of the environmental temperature in a certain time period before the current time according to the change curve of the environmental temperature, for example, the change trend of the environmental temperature in 60min before the current time mainly reflects that the environmental temperature is heated or cooled in the time period, the change trend can be obtained by subtracting a difference value of the temperature at the starting time point from the temperature at the current time point, when the difference value is a positive number, the environmental temperature is shown to be in an ascending trend, when the difference value is 0, the environmental temperature is shown to be approximately unchanged, and when the difference value is a negative number, the environmental temperature is shown to be in a descending trend.
Acquiring a decreasing rate v of the ambient temperature only when the trend of the change of the ambient temperature is decreasing 2 The rate of decrease v 2 The difference between the current time point temperature minus the starting time point temperature is divided by the time period to obtain the average rate of temperature decrease over the time period.
Then calculating to obtain a second temperature threshold n = t 1 *v 2 + m; when the ambient temperature is reduced to the second temperature threshold value n, the charge and discharge management module 2 controls the external power supply 6, the automobile storage battery 5 or the storage battery 4 to charge the super capacitor module 3.
According to the charging time t of the super capacitor module 3 1 Estimating a rate of continued decline v, e.g. of ambient temperature 2 When the ambient temperature is lower than the second temperature threshold n, the super capacitor module 3 is charged at least, so that the super capacitor module 3 is in a full state when the ambient temperature is lower than the first temperature threshold m, and the discharging starting operation can be stably completed.
Through the process, the super capacitor module 3 can be closed to reduce the power consumption of the system when the ambient temperature is higher, and the super capacitor module 3 is automatically charged when the ambient temperature is reduced to the second temperature threshold value n, so that the super capacitor module 3 is in a full state when the ambient temperature is reduced to the first temperature threshold value m. The power consumption of the system is saved, and the requirement of the instant start of the automobile can be met.
Further, in this embodiment, when the charge and discharge management module 2 controls the external power supply 6, the automobile battery 5 or the storage battery 4 to charge the super capacitor module 3, it first detects whether the external power supply 6 is connected, if so, the external power supply 6 is controlled to charge the super capacitor module 3, otherwise, the remaining electric quantities of the automobile battery 5 and the storage battery 4 are further detected and compared, and one of the more remaining electric quantities is selected to charge the super capacitor module 3. When charging for super capacitor module 3, preferentially use external power source 6 to charge, when not connecting external power source 6, then select that the surplus electric quantity is high to charge to avoid all the other modules to appear low-power phenomenon. In a specific embodiment, when the remaining electric quantities of the automobile battery 5 and the storage battery 4 are equal, the automobile battery 5 is preferentially used for charging.
Further, in this embodiment, the starting system for the automobile battery further includes:
the starting management module is in communication connection with the charging and discharging management module, is in signal connection with the starting module, communicates with the charging and discharging management module, and controls the operation of the starting module according to the communication signals so as to enable the starting module to be controlled stably and respond quickly.
Further, in this embodiment, external power source and car storage battery are connected respectively to the input of battery for insert external voltage or car storage battery voltage charge, make the battery have multiple charge mode.
Further, in this embodiment, the super capacitor module includes main capacitor unit and at least one spare capacitor unit that connects in parallel with main capacitor unit, and when charge and discharge management module detected that main capacitor unit damaged or the trouble, and need use the super capacitor module to supply power for the start module when starting this moment, charge and discharge management module switches to spare capacitor unit and discharges for the start module, makes the start module in time discharge and makes the car storage battery start. The backup capacitor unit can improve the stability of the super capacitor module, and further improve the overall stability and reliability of the system.
Further, in this embodiment, the main capacitor unit includes p discharge capacitors connected in series one by one, and voltage drops at two ends of each discharge capacitor are u 1 、u 2 ...u p Selecting the maximum value and the minimum value as u max And u min (ii) a A voltage drop threshold u is preset in the charge and discharge management module 2 d When u is max -u min ≥u d And if not, judging that the main capacitor unit is not in fault. In a particular embodiment, the pressure drop threshold u d May be set to 0.5v. When each discharging capacitor is used for storing electricity, voltage drop is generated at two ends of each discharging capacitor, and the voltage drop distribution of each discharging capacitor can reflect the main powerTherefore, in this embodiment, by detecting the difference between the maximum value and the minimum value of the voltage drop, when the difference is greater than 0.5v, it is determined that the main capacitor unit has a fault, otherwise, it is determined that the main capacitor unit has no fault, and the capacitor unit can be used normally. The process can be convenient for judging whether the main capacitor unit fails or not, and the standby capacitor unit is started to discharge in time when the main capacitor unit fails so as to ensure the stability of the discharge starting process.
Furthermore, in this embodiment, the charge and discharge management module detects the remaining power of the automobile storage battery and the storage battery, and when the remaining power of the automobile storage battery is smaller than a preset storage battery power threshold value, for example, 10%, and the remaining power of the storage battery is smaller than a preset storage battery power threshold value, for example, 20%, the storage battery stops charging the super capacitor module, and displays the low power alarm information. The process can reduce charging loss under the low electric quantity of the storage battery and the automobile storage battery, and timely give an alarm.
Furthermore, in the embodiment, the storage battery is a lithium battery, and the lithium battery has the advantages of stable charge and discharge and good low-temperature performance.
In the description of the present disclosure, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing and simplifying the present disclosure, and in the absence of a contrary explanation, these directional terms are not intended to indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present disclosure.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present disclosure.
Claims (7)
1. The utility model provides an automobile storage battery start-up system which characterized in that includes: the charging and discharging management system comprises a starting module, a charging and discharging management module, a super capacitor module and a storage battery;
the charge and discharge management module is in signal connection with the super capacitor module, the storage battery and the automobile storage battery respectively;
the super capacitor module and the storage battery are connected in parallel and are connected to the input end of the starting module, the super capacitor module and the storage battery are used for selecting to discharge to the starting module, the output end of the starting module is connected with the input end of an automobile storage battery, and the starting module is used for inputting a starting signal to the automobile storage battery when receiving the discharging current of the super capacitor module or the storage battery and controlling the automobile storage battery to be started;
the input end of the super capacitor module is respectively connected with an external power supply, an automobile storage battery and the storage battery and is used for being charged by external voltage, automobile storage battery voltage or storage battery voltage; and the charge and discharge management module is used for controlling an external power supply and an automobile storage battery or the storage battery to charge the super capacitor module.
2. The automotive battery starting system of claim 1, further comprising:
the temperature detection module is in signal connection with the charge and discharge management module, and is used for acquiring an ambient temperature and inputting the ambient temperature into the charge and discharge management module, a first temperature threshold m is preset in the charge and discharge management module, and when the ambient temperature is higher than the first temperature threshold m, the charge and discharge management module controls the storage battery to discharge to the starting module; and when the ambient temperature is equal to or lower than the first temperature threshold m, the charge and discharge management module controls the super capacitor module to discharge to the starting module.
3. The automotive battery starting system of claim 1, further comprising;
and the starting management module is in communication connection with the charging and discharging management module and is in signal connection with the starting module.
4. The automobile battery starting system according to claim 1, wherein the input end of the storage battery is respectively connected with an external power supply and an automobile battery and is used for being charged by being connected with an external voltage or the voltage of the automobile battery.
5. The automobile battery starting system according to claim 1, wherein the super capacitor module comprises a main capacitor unit and at least one backup capacitor unit connected in parallel with the main capacitor unit, the charge and discharge management module controls the super capacitor module to discharge to the starting module, whether the main capacitor unit fails is judged, if yes, the backup capacitor unit is used to discharge to the starting module, and if not, the main capacitor unit is used to discharge to the starting module.
6. The automotive battery starting system according to claim 5, characterized in that the main capacitor unit comprises p discharge capacitors connected in series one after the other.
7. The automotive battery starting system of claim 1, wherein the battery is a lithium battery.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220567437.3U CN218161834U (en) | 2022-03-11 | 2022-03-11 | Automobile storage battery starting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220567437.3U CN218161834U (en) | 2022-03-11 | 2022-03-11 | Automobile storage battery starting system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116666833A (en) * | 2023-06-09 | 2023-08-29 | 东北农业大学 | Power battery thermal management system |
| WO2023169141A1 (en) * | 2022-03-11 | 2023-09-14 | 深圳市格瑞普电池有限公司 | Starting system for automobile storage battery |
-
2022
- 2022-03-11 CN CN202220567437.3U patent/CN218161834U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023169141A1 (en) * | 2022-03-11 | 2023-09-14 | 深圳市格瑞普电池有限公司 | Starting system for automobile storage battery |
| CN116666833A (en) * | 2023-06-09 | 2023-08-29 | 东北农业大学 | Power battery thermal management system |
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