CN116442852A - Control method for supplementing electricity to storage battery of electric automobile - Google Patents
Control method for supplementing electricity to storage battery of electric automobile Download PDFInfo
- Publication number
- CN116442852A CN116442852A CN202310372132.6A CN202310372132A CN116442852A CN 116442852 A CN116442852 A CN 116442852A CN 202310372132 A CN202310372132 A CN 202310372132A CN 116442852 A CN116442852 A CN 116442852A
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- Prior art keywords
- storage battery
- voltage
- wake
- channel mos
- battery
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- 230000005611 electricity Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000001502 supplementing effect Effects 0.000 title claims abstract description 17
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims abstract description 18
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 239000013589 supplement Substances 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a control method for supplementing electricity to a storage battery of an electric automobile, which comprises the steps of adding a storage battery under-voltage wake-up circuit in a DCDC device connected with the storage battery in parallel, and when the voltage of the storage battery is too low, the storage battery under-voltage wake-up circuit generates a wake-up signal to wake up VCU, BMS, DCDC, T-BOX, so that the electricity supplementing to the storage battery is realized. Through the mode, the electric vehicle storage battery can timely and effectively supplement electricity for the electric vehicle storage battery, and is low in cost, low in power consumption and good in controllability.
Description
Technical Field
The invention relates to the technical field of storage batteries of electric vehicles, in particular to a control method for supplementing electricity to the storage batteries of the electric vehicles.
Background
The battery on the car often appears the deficiency of power condition, leads to the vehicle unable start, causes a great deal of inconvenience, needs to mend the electric to the battery of deficiency of power at this moment and can start. At present, all controllers of the electric automobile are powered by a storage battery. Once the battery is deficient, the vehicle cannot strike a fire. For the traditional fuel vehicle, the method for supplementing electricity to the storage battery comprises the following steps:
1. supplementing electricity to the storage battery through a special charger;
2. starting the automobile to supplement electricity after the storage batteries of other vehicles are overlapped;
3. and (5) supplementing electricity after the vehicle is started by the starter.
At present, as the new energy automobile is provided with the DCDC device, the electricity supplementing method of the electric automobile is more diversified:
a) Detecting the state of the storage battery in real time by adding IBS;
b) Detecting the voltage of the storage battery to supplement electricity through the timing wake-up of the T-BOX, the VCU or the BMS;
c) And the relay device is controlled to switch and supplement electricity through the voltage collection and supplement electricity of the storage battery.
In the scheme, the scheme a is added with one part, and simultaneously the weight and the cost of the whole vehicle are increased, so that the economy is worst; in the scheme b, in order to detect the voltage of the storage battery, unnecessary awakening times are increased, and power consumption is increased; scheme c has higher control cost.
Therefore, a new control method for supplying power to the storage battery of the electric vehicle is needed to solve the above problems.
Disclosure of Invention
The invention aims to provide a control method for supplementing electricity to an electric automobile storage battery, which can timely and effectively supplement electricity to the electric automobile storage battery.
In order to solve the technical problems, the invention adopts a technical scheme that: the control method for supplementing electricity to the storage battery of the electric automobile is provided, a storage battery under-voltage wake-up circuit is added in a DCDC device connected with the storage battery in parallel, and when the voltage of the storage battery is too low, the storage battery under-voltage wake-up circuit generates a wake-up signal to wake up VCU, BMS, DCDC, T-BOX, so that the electricity supplementing to the storage battery is realized.
In a preferred embodiment of the present invention, the under-voltage wake-up circuit of the storage battery includes a zener diode Z1, resistors R1-R3, and an N-channel MOS transistor Q1, where the zener diode Z1 is connected in parallel between the storage battery voltages KL30 and KL15, the resistor R1 is connected in parallel between the storage battery voltages KL15 and the gate of the N-channel MOS, one end of the resistor R2 is connected to the gate of the N-channel MOS, the other end is grounded, the resistor R3 is connected in parallel between the storage battery voltage KL30 and the drain of the N-channel MOS, and the drain of the N-channel MOS is an output end.
In a preferred embodiment of the present invention, when the vehicle is in an ignition state, a stable gate voltage is provided for the N-channel MOS transistor Q1, and the wake-up signal is at a low level;
when the vehicle is in a flameout state, if the voltage of the storage battery voltage KL30 is higher than a threshold value, the N-channel MOS tube Q1 is opened, and a wake-up signal is of a low level;
when the vehicle is in a flameout state, if the voltage of the storage battery voltage KL30 is higher than a threshold value, the N-channel MOS tube Q1 is closed, the wake-up signal is pulled up to KL30, and the DCDC device is awakened.
Further, the DCDC device wakes up VCU, BMS, T-BOX using a network or hard wire.
The beneficial effects of the invention are as follows: according to the invention, the under-voltage wake-up circuit of the storage battery is added in the existing equipment of the electric automobile, so that when the voltage of the storage battery is too low, the under-voltage wake-up circuit of the storage battery can generate a wake-up signal to wake up VCU, BMS, DCDC, T-BOX, and the power supply of the storage battery is realized, so that the cost is low, the power consumption is low, and the controllability is good.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic block diagram of a control method for supplementing power to an electric vehicle battery according to the present invention;
fig. 2 is a schematic diagram of the battery under-voltage wake-up circuit.
Detailed Description
In order to further illustrate the data transmission method based on the intelligent driving vehicle and the cloud data platform, which achieves the expected purpose, the data transmission method based on the intelligent driving vehicle and the cloud data platform, which are provided by the invention, is further described in detail by combining the drawings and the specific operation method. In the following description, the described embodiments are provided as some, but not all, of the embodiments of the present invention, and all other embodiments that may be made by one of ordinary skill in the art without inventive effort are intended to be within the scope of the present application.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Referring to fig. 1, an embodiment of the present invention includes:
a control method for supplementing electricity to an electric automobile storage battery is characterized in that a storage battery under-voltage wake-up circuit is added in a DCDC device connected in parallel with the storage battery, when the voltage of the storage battery is too low, the storage battery under-voltage wake-up circuit generates a wake-up signal to wake up a new energy vehicle controller VCU and BMS (BatteryManagement System ), a direct current converter DCDC and a T-BOX (vehicle-mounted T-BOX), and the electricity supplementing to the storage battery is realized.
Referring to fig. 2, the under-voltage wake-up circuit of the storage battery comprises a voltage stabilizing diode Z1, resistors R1-R3 and an N-channel MOS transistor Q1. The zener diode Z1 is connected in parallel between the battery voltages KL30 and KL15, and the positive electrode of Z1 is connected to KL15 and the negative electrode is connected to KL 30. The resistor R1 is connected in parallel between the battery voltage KL15 and the grid electrode of the N-channel MOS, one end of the resistor R2 is connected with the grid electrode of the N-channel MOS, the other end of the resistor R3 is grounded, the resistor R3 is connected in parallel between the battery voltage KL30 and the drain electrode of the N-channel MOS, and the drain electrode of the N-channel MOS is an output end WAKEUP.
When the vehicle is in an ignition state, a stable grid voltage is provided for the N-channel MOS transistor Q1, and at the moment, the wake-up signal is at a low level; r2 limits the current flowing through Z1 and plays a role in protection.
When the vehicle is in a flameout state, if the voltage of the storage battery voltage KL30 is higher than a threshold value, the N-channel MOS tube Q1 is opened, and the wake-up signal is at a low level.
When the vehicle is in a flameout state, if the voltage of the storage battery voltage KL30 is higher than a threshold value, the N-channel MOS tube Q1 is closed, the wake-up signal is pulled up to KL30, and the DCDC device is awakened.
Specifically, the threshold is approximately the threshold of zener diode Z1.
Further, the DCDC device wakes up VCU, BMS, T-BOX using a network. The DCDC device is controlled by the VCU to enable the DCDC function to recharge the battery.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (4)
1. A control method for supplementing electricity to an electric automobile storage battery is characterized in that a storage battery under-voltage wake-up circuit is added in a DCDC device connected with the storage battery in parallel, and when the voltage of the storage battery is too low, the storage battery under-voltage wake-up circuit generates a wake-up signal to wake up VCU, BMS, DCDC, T-BOX, so that the electricity supplementing to the storage battery is realized.
2. The method for controlling the battery power supply of the electric automobile according to claim 1, wherein the under-voltage wake-up circuit of the battery comprises a voltage stabilizing diode Z1, resistors R1-R3 and an N-channel MOS tube Q1, the voltage stabilizing diode Z1 is connected in parallel between a battery voltage KL30 and KL15, the resistor R1 is connected in parallel between the battery voltage KL15 and a grid electrode of the N-channel MOS, one end of the resistor R2 is connected with the grid electrode of the N-channel MOS, the other end of the resistor R3 is grounded, the resistor R3 is connected in parallel between the battery voltage KL30 and a drain electrode of the N-channel MOS, and the drain electrode of the N-channel MOS is an output end.
3. The control method for supplying power to the storage battery of the electric automobile according to claim 1, wherein when the vehicle is in an ignition state, a stable grid voltage is provided for the N-channel MOS transistor Q1, and at the moment, the wake-up signal is at a low level;
when the vehicle is in a flameout state, if the voltage of the storage battery voltage KL30 is higher than a threshold value, the N-channel MOS tube Q1 is opened, and a wake-up signal is of a low level;
when the vehicle is in a flameout state, if the voltage of the storage battery voltage KL30 is higher than a threshold value, the N-channel MOS tube Q1 is closed, the wake-up signal is pulled up to KL30, and the DCDC device is awakened.
4. A control method for recharging a battery of an electric vehicle according to claim 3, wherein the DCDC device wakes up VCU, BMS, T-BOX by a network or a hard wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310372132.6A CN116442852A (en) | 2023-04-04 | 2023-04-04 | Control method for supplementing electricity to storage battery of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310372132.6A CN116442852A (en) | 2023-04-04 | 2023-04-04 | Control method for supplementing electricity to storage battery of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116442852A true CN116442852A (en) | 2023-07-18 |
Family
ID=87119580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310372132.6A Pending CN116442852A (en) | 2023-04-04 | 2023-04-04 | Control method for supplementing electricity to storage battery of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116442852A (en) |
-
2023
- 2023-04-04 CN CN202310372132.6A patent/CN116442852A/en active Pending
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