CN111923852A - Vehicle generator control method and device - Google Patents
Vehicle generator control method and device Download PDFInfo
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- CN111923852A CN111923852A CN202010629103.XA CN202010629103A CN111923852A CN 111923852 A CN111923852 A CN 111923852A CN 202010629103 A CN202010629103 A CN 202010629103A CN 111923852 A CN111923852 A CN 111923852A
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- power battery
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1438—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle in combination with power supplies for loads other than batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1446—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle in response to parameters of a vehicle
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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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- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
Abstract
The invention discloses a control method and a control device for a vehicle generator, wherein the method comprises the steps of acquiring running data of a vehicle in real time; when the vehicle runs in an intelligent power supply mode, the generator and the power battery are controlled to supply power to important loads together; when the operation data meet the independent power supply condition, controlling the power battery to supply power to the conventional load independently; when the operation data meet the parallel power supply condition, controlling the generator and the power battery to supply power to the conventional load together; wherein, the important loads at least comprise an engine ignition system load, a brake anti-lock braking system load, an electronic stability program system load and an engine controller load; the normal load includes at least a starter load, an air conditioning load. According to the control method and device for the vehicle generator, the generator and the power battery are arranged to act in a matched mode, a targeted power supply strategy is adopted for different electric appliance loads of the vehicle, the utilization rate of the power battery can be improved, and therefore the energy-saving effect of the vehicle is improved.
Description
Technical Field
The invention relates to the technical field of automobile control, in particular to a generator control method and device.
Background
In the running process of the existing vehicle, the engine controller outputs a voltage signal to the generator controller according to the working condition of the vehicle, and the generator controller regulates the output voltage of the generator to supply power to the electric appliance for the whole vehicle, so that the running performance of the vehicle is improved. However, the generator is used as a core power supply component of the vehicle to output electric energy for electrical appliances of the whole vehicle, which causes the resource occupancy rate of the generator controller to be high, and causes the utilization rate of the power battery of the vehicle to be low and the energy-saving effect to be poor.
Disclosure of Invention
The embodiment of the invention provides a generator control method and a generator control device, which aim to solve the technical problem of high resource occupancy rate of the conventional generator controller, and can improve the utilization rate of a power battery by setting a power supply strategy of matching the generator with the power battery, so that the energy-saving effect of a vehicle is improved.
In order to solve the above technical problem, an embodiment of the present invention provides a method for controlling a vehicle generator, including:
acquiring running data of a vehicle in real time;
when the vehicle runs in an intelligent power supply mode, the generator and the power battery are controlled to supply power to important loads together; and the number of the first and second electrodes,
when the operation data meet the individual power supply condition, controlling the power battery to supply power to a conventional load individually;
when the operation data meet the parallel power supply condition, controlling the generator and the power battery to supply power to the conventional load together;
wherein the important loads at least comprise an engine ignition system load, a brake anti-lock system load, an electronic stability program system load and an engine controller load; the normal load at least comprises a starter load and an air conditioner load.
As a preferable scheme, when the operation data meets an individual power supply condition, the power battery is controlled to supply power to a conventional load individually, specifically:
and when the acceleration signal of the operation data is detected or the vehicle speed signal of the operation data is detected to be unchanged, judging that the independent power supply condition is met, and controlling the power battery to independently supply power to the conventional load.
As a preferable scheme, when the operation data meets a parallel power supply condition, the generator and the power battery are controlled to supply power to the conventional load together, specifically:
when a braking signal in the operation data is detected, or an idling signal in the operation data is detected, or when the remaining electric quantity in the operation data is detected to be smaller than a first preset threshold value, it is judged that the parallel power supply condition is met, and the generator and the power battery are controlled to supply power to the conventional load together.
Preferably, the control method further includes:
judging whether the residual electric quantity in the operation data meets an electric quantity condition;
if the electric quantity condition is met, operating the intelligent power supply mode of the vehicle;
and if the electric quantity condition is not met, controlling the generator and the power battery to supply power to the important load and the conventional load together, and controlling the generator to supply power to the power battery.
As a preferred scheme, judging whether the remaining power in the operation data meets a preset power condition specifically comprises:
and when detecting that the residual electric quantity in the operation data is larger than a second preset threshold value, judging that the electric quantity condition is met.
Another embodiment of the present invention provides a control apparatus for a vehicle generator, for implementing the control method for a vehicle generator as described above, including a controller and a power supply switching circuit;
the controller comprises a first port, a second port and a third port; the power supply switching circuit comprises a relay;
the control end of the relay is connected with the engine controller and used for receiving a control signal of the engine controller;
the first port is respectively connected with one end of a vehicle generator and one end of an important load;
the second port is respectively connected with the other end of the generator, the other end of the important load, the negative electrode of the power battery and the other end of the conventional load through the relay;
the third port is respectively connected with the anode of the power battery and one end of the conventional load;
preferably, the control device of the vehicle generator further includes a diode, an anode of the diode is connected to an anode of the power battery, and a cathode of the diode is connected to one end of the important load.
Preferably, the controller comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a capacitor, an MOS transistor and a zener diode;
the drain electrode of the MOS tube is respectively connected with the first port and one end of the first resistor, the other end of the first resistor is connected with the grid electrode of the MOS tube through the capacitor, and the other end of the first resistor is further connected with the grid electrode of the MOS tube through the second resistor and the third resistor in sequence;
the source electrode of the MOS tube is respectively connected with the third port and the cathode of the voltage stabilizing diode, and the anode of the voltage stabilizing diode is connected with the grid electrode of the MOS tube through the fourth resistor;
the connection midpoint of the second resistor and the third resistor is connected with the second port.
Compared with the prior art, the power supply control method has the advantages that different and targeted power supply strategies are adopted for electric appliance loads of the vehicle, the detection and judgment of data and the selection and action of power supply sources of different loads are realized under the preset condition by matching the generator and the power battery, the intelligent automatic regulation and control are achieved, the resource occupancy rate of a generator controller is reduced, the normal operation of the vehicle and the safety and stability of all parts are ensured, the steps of the whole control method are clear and reasonable, the integration level of the control device is low, the structure is simple, and the energy-saving effect of the vehicle can be effectively improved.
Drawings
FIG. 1 is a schematic flow chart of a control method of a vehicle generator in an embodiment of the invention;
FIG. 2 is a schematic configuration diagram of a control apparatus of a vehicle generator in an embodiment of the invention;
fig. 3 is a schematic structural diagram of a controller of a link plate in the embodiment of the invention;
wherein, 1, a controller; 2. a power supply switching circuit; 3. a vehicle generator; 4. an important load; 5. a power battery; 6. a conventional load; 7. a diode; 11. a first port; 12. a second port; 13. a third port; 14. a first resistor; 15. a second resistor; 16. a third resistor; 17. a fourth resistor; 18. a capacitor; 19. an MOS tube; 20. a voltage regulator diode; 21. a relay.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present application, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description of the present application, it is to be noted that, 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. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, as those skilled in the art will recognize the specific meaning of the terms used in the present application in a particular context.
An embodiment of the present invention provides a method for controlling a vehicle generator, and specifically, please refer to fig. 1, where fig. 1 is a schematic flow chart of the method for controlling a vehicle generator according to the embodiment of the present invention, and the method specifically includes:
acquiring running data of a vehicle in real time;
when the vehicle runs in an intelligent power supply mode, the generator and the power battery are controlled to supply power to important loads together; and the number of the first and second electrodes,
when the operation data meet the individual power supply condition, controlling the power battery to supply power to a conventional load individually;
when the operation data meet the parallel power supply condition, controlling the generator and the power battery to supply power to the conventional load together;
the electric appliances for the vehicle are divided into important loads and conventional loads, wherein the important loads at least comprise electric appliances related to the safety and the functionality of the vehicle, such as an engine ignition system, ABS \ ESP, electric power steering, an ECU (electronic control unit), light outside the vehicle and the like, and the conventional loads at least comprise non-safety electric appliances such as a starter, an electronic fan, an air conditioner and blower system, an entertainment system, light inside the vehicle, glass lifting, seat adjustment and the like.
It should be noted that, the embodiment of the present invention adopts different and targeted power supply strategies, and switches the power generator and the power battery to supply power to different loads of vehicle electrical equipment in a matching manner, unlike the strategy in the prior art in which the power generator supplies power to the vehicle electrical equipment, the embodiment of the present invention adopts a power supply strategy in which the power generator and the power battery supply power together to supply power to the important loads, and the conventional load switches back and forth between two modes of power battery independent power supply and power battery common power supply, so as to ensure that the important loads are always supplied power by the power generator and the power battery in parallel, the voltage is stable and free from fluctuation, and the conventional load switches the power supply source according to the actual vehicle running state, therefore, the resource occupancy rate of the generator controller is reduced, the utilization rate of the vehicle power battery is improved, the whole control method is more targeted, and the energy-saving effect of the vehicle is improved.
Preferably, in the above embodiment, the operation data at least includes the current remaining capacity of the power battery, an acceleration signal, a braking signal, a vehicle speed signal, an idle speed signal, and the like, the vehicle controller obtains the operation data reflecting the vehicle state by detecting the sensors disposed at various positions of the vehicle (for example, obtaining the corresponding idle speed signal by detecting the throttle position sensor), and determines the obtained data, outputs different control signals, and further controls the vehicle generator to perform different actions, so as to ensure that the vehicle is controlled with more accurate data support, and ensure the accuracy of the vehicle control.
In one preferred embodiment, when the operation data meets an individual power supply condition, the power battery is controlled to supply power to a conventional load individually, specifically: when the vehicle control unit detects the acceleration signal of the operation data or detects that the vehicle speed signal of the operation data is unchanged, namely when the vehicle is under an acceleration working condition or a constant-speed working condition, the vehicle control unit judges that the independent power supply condition is met, and sends a control signal to control the power battery to supply power to the conventional load independently.
In one preferred embodiment, when the operation data meets a parallel power supply condition, the generator and the power battery are controlled to supply power to the normal load together, specifically: when a braking signal in the running data is detected, or an idling signal in the running data is detected, or when the remaining electric quantity in the running data is detected to be smaller than a first preset threshold value, namely when the vehicle is in a braking working condition, an idling working condition or a power battery SOC value is low, it is judged that the parallel power supply condition is met, the generator and the power battery are controlled to supply power to the conventional load in a shared mode, and meanwhile, the power battery is charged by utilizing energy recovery of vehicle braking and extra energy of an engine in idling so as to supplement electric energy consumed when the power battery supplies power independently. In this embodiment, the first preset threshold is preferably 20% of the total power, that is, when it is detected that the remaining power is less than 20% of the total power, it is determined that the parallel power supply condition is satisfied, and a subsequent corresponding action is performed.
Before entering the vehicle intelligent power supply mode, the vehicle control unit judges the residual electric quantity in the acquired vehicle operation data, judges whether the residual electric quantity meets an electric quantity condition, and controls the vehicle to enter the vehicle intelligent power supply mode if the residual electric quantity meets the electric quantity condition; and if the electric quantity condition is not met, controlling the generator and the power battery to supply power to the important load and the conventional load together, and controlling the generator to supply power to the power battery.
Wherein, judge whether the residual capacity in the operating data satisfies the predetermined electric quantity condition, specifically do: and when detecting that the residual electric quantity in the operation data is larger than a second preset threshold value, judging that the electric quantity condition is met. Preferably, in this embodiment, the second preset threshold is 70% of the total power, that is, when it is detected that the remaining power is greater than 70% of the total power, it is determined that the power condition is satisfied.
Another embodiment of the present invention provides a control device for a vehicle generator, which is used to implement the control method for the vehicle generator described above, specifically, please refer to fig. 2, and fig. 2 is a schematic structural diagram of the control device for the vehicle generator in the embodiment of the present invention, and specifically includes a controller 1 and a power supply switching circuit 2.
The controller 1 comprises a first port 11, a second port 12 and a third port 13; the power supply switching circuit 2 includes a relay 21. And the control end of the relay 21 is connected with an engine controller ECU and is used for receiving a control signal of the engine controller ECU.
The first port 11 is respectively connected with one end of a vehicle generator 3 and one end of a critical load 4; the second port 12 is connected with the other end of the generator 3, the other end of the important load 4, the negative electrode of the power battery 5 and the other end of the conventional load 6 through the relay 21; the third port 13 is connected to the positive electrode of the power battery 5 and one end of the normal load 6, respectively.
Preferably, in the above embodiment, a diode 7 is further included, an anode of the diode 7 is connected to an anode of the power battery 5, and a cathode of the diode 7 is connected to one end of the important load 4.
It should be noted that, the control device and relevant components of the vehicle cooperate together to form an intelligent control system of the generator to implement the control method, as shown in fig. 2, the important load is powered by the generator and the power battery in parallel through a diode; when the first port and the third port of the controller are switched on, the generator and the power battery are connected in parallel to supply power to the conventional load, and when the first port and the third port of the controller are switched off, the power battery is used for independently supplying power to the conventional load; the switching of the conventional load in two modes of power supply by a power battery alone or power supply by a generator and the power battery in parallel is realized by switching on or off the first port and the third port of the controller; the relay in the power supply switching circuit is controlled by a switching value signal output by the ECU generator controller, and the relay uses a normally closed contact, so that the safety of the system is improved.
Preferably, in the above embodiment, please refer to fig. 3, fig. 3 is a schematic structural diagram of a controller according to an embodiment of the present invention, wherein the controller 1 includes a first resistor 14, a second resistor 15, a third resistor 16, a fourth resistor 17, a capacitor 18, a MOS transistor 19, and a zener diode 20;
the drain D of the MOS transistor 19 is connected to the first port 11 and one end of the first resistor 14, the other end of the first resistor 14 is connected to the gate G of the MOS transistor 19 through the capacitor 18, and the other end of the first resistor 14 is further connected to the gate G of the MOS transistor 19 through the second resistor 15 and the third resistor 16 in sequence; the source S of the MOS transistor 19 is connected to the third port 13 and the negative electrode of the zener diode 20, respectively, and the positive electrode of the zener diode 20 is connected to the gate G of the MOS transistor 19 through the fourth resistor 17; the midpoint of the connection between the second resistor 15 and the third resistor 16 is connected to the second port 12.
It should be noted that, when the second port of the controller is grounded, the capacitor and the third resistor form an RC series circuit, the voltage at the right end of the capacitor gradually decreases from +12V and finally becomes 0, that is, the slow start time of the MOS transistor is determined by the capacitor and the third resistor together, when the second port of the controller is disconnected, the capacitor, the second resistor and the third resistor form an RC series circuit, the voltage at the right end of the capacitor gradually increases from 0V and finally becomes +12V, that is, the slow off time of the MOS transistor is determined by the capacitor, the second resistor and the third resistor together. The voltage stabilizing diode is used for clamping voltage Vgs at two ends of the G pole and the S pole, and the MOS tube is prevented from being broken down due to the fact that the Vgs is too large.
As one of the preferable embodiments, the whole control logic of the invention is to firstly read the SOC value of the power battery, and start the intelligent power supply mode of the vehicle when the power condition is met; then, through the acquired information of the current vehicle acceleration, the accelerator pedal position, the water temperature and the like, when the vehicle is judged to be under an acceleration working condition or a constant speed working condition, the generator controller ECU outputs a high-level switch signal to enable the normally closed contact of the relay to be disconnected; then, the second port of the controller is disconnected with the ground, a capacitor in the controller starts to discharge in an RC series circuit, the G-pole voltage of the MOS tube is gradually reduced, when Vgs < -8 > V, the working area of the MOS tube gradually enters an amplifying area from a completely conducting area and then enters a cut-off area, so that the MOS tube is gradually turned off, the abnormal rise of the voltage of the whole vehicle caused by the load rejection condition of a generator can be avoided due to the soft turn-off of the MOS tube, and the delay of the soft turn-off is determined by the load rejection test of the whole vehicle and the voltage fluctuation condition; furthermore, the conventional load is switched to a power battery independent power supply mode, the generator eliminates the conventional load and a power battery charging load, the power is reduced, more torque of the engine is distributed to a vehicle transmission system, the vehicle acceleration performance is better, and the oil consumption is lower; furthermore, through the acquired information of the current vehicle acceleration, the accelerator pedal position, the water temperature and the like, when the vehicle is judged to be in a braking working condition, the engine controller ECU outputs a low-level switch signal to enable the normally closed contact of the relay to be connected; at the moment, a normally closed contact of the relay is jointed, a second port of the controller is connected with the ground, a capacitor in the controller starts to charge in an RC series circuit, the G-pole voltage of the MOS tube is gradually increased, when Vgs is smaller than Vgs (th), the working area of the MOS tube gradually enters an amplifying area from a cut-off area and then enters a complete conducting area, so that the MOS tube is gradually connected, the soft start of the MOS tube can avoid the abnormal reduction of the voltage of the whole vehicle caused by the sudden increase of the load of the generator, and the delay of the soft start is determined by the load throwing test of the whole vehicle and the voltage fluctuation condition; and finally, the conventional load is switched to a power supply mode in which the generator and the power battery are connected in parallel, the generator supplies electric energy of the conventional load and the important load, and the power battery is rapidly charged with large current, so that the braking energy is recycled as much as possible, and the electric energy consumed when the power battery is independently supplied with power is supplemented.
Of course, if the condition that the electric quantity is not met is detected at the beginning, the intelligent power supply mode of the vehicle is closed, the conventional load works in the power supply mode of the generator and the power battery which are connected in parallel for a long time, and the generator charges the power battery at the same time.
According to the vehicle generator control method and device provided by the embodiment of the invention, the control device is simple in structure and reasonable in layout, components such as a generator and the like do not need to be additionally changed, and the vehicle generator control method and device are particularly suitable for upgrading of common generator models; the engine controller ECU can realize subsequent actions only by outputting a switching value signal to the relay, and meanwhile, the important load voltage in the vehicle has no fluctuation, thereby being beneficial to the normal operation of the vehicle and the work of safety parts; in addition, under the mode that the conventional load is switched to the power battery independent power supply mode, only the important load is supplied with power by the generator, the conventional load is supplied with power by the storage battery independently, the generator does not charge the storage battery, the load of the generator is lower, and the energy-saving effect of the vehicle is effectively improved.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (8)
1. A control method of a vehicle generator, characterized by comprising:
acquiring running data of a vehicle in real time;
when the vehicle runs in an intelligent power supply mode, the generator and the power battery are controlled to supply power to important loads together; and the number of the first and second electrodes,
when the operation data meet the individual power supply condition, controlling the power battery to supply power to a conventional load individually;
when the operation data meet the parallel power supply condition, controlling the generator and the power battery to supply power to the conventional load together;
wherein the important loads at least comprise an engine ignition system load, a brake anti-lock system load, an electronic stability program system load and an engine controller load; the normal load at least comprises a starter load and an air conditioner load.
2. The control method of the vehicle generator according to claim 1, characterized in that when the operation data satisfies an individual power supply condition, the power battery is controlled to supply power alone to a regular load, specifically:
and when the acceleration signal of the operation data is detected or the vehicle speed signal of the operation data is detected to be unchanged, judging that the independent power supply condition is met, and controlling the power battery to independently supply power to the conventional load.
3. The method for controlling the vehicle generator according to claim 1, wherein when the operation data satisfies a parallel power supply condition, the generator and the power battery are controlled to supply power to the normal load in common, specifically:
when a braking signal in the operation data is detected, or an idling signal in the operation data is detected, or when the remaining electric quantity in the operation data is detected to be smaller than a first preset threshold value, it is judged that the parallel power supply condition is met, and the generator and the power battery are controlled to supply power to the conventional load together.
4. The control method of a vehicle generator according to claim 1, characterized by further comprising:
judging whether the residual electric quantity in the operation data meets an electric quantity condition;
if the electric quantity condition is met, operating the intelligent power supply mode of the vehicle;
and if the electric quantity condition is not met, controlling the generator and the power battery to supply power to the important load and the conventional load together, and controlling the generator to supply power to the power battery.
5. The method for controlling a vehicle generator according to claim 4, wherein the step of determining whether the remaining power in the operation data satisfies a preset power condition is specifically:
and when detecting that the residual electric quantity in the operation data is larger than a second preset threshold value, judging that the electric quantity condition is met.
6. A control device of a vehicle generator for realizing the control method of the vehicle generator according to any one of claims 1 to 5, characterized by comprising a controller and a power supply switching circuit;
the controller comprises a first port, a second port and a third port; the power supply switching circuit comprises a relay;
the control end of the relay is connected with the engine controller and used for receiving a control signal of the engine controller;
the first port is respectively connected with one end of a vehicle generator and one end of an important load;
the second port is respectively connected with the other end of the generator, the other end of the important load, the negative electrode of the power battery and the other end of the conventional load through the relay;
and the third port is respectively connected with the anode of the power battery and one end of the conventional load.
7. The control device of a vehicle generator according to claim 6, further comprising a diode, an anode of which is connected to an anode of the power battery, and a cathode of which is connected to one end of the important load.
8. The control device of the generator according to claim 6, wherein the controller comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a capacitor, a MOS transistor and a voltage regulator diode;
the drain electrode of the MOS tube is respectively connected with the first port and one end of the first resistor, the other end of the first resistor is connected with the grid electrode of the MOS tube through the capacitor, and the other end of the first resistor is further connected with the grid electrode of the MOS tube through the second resistor and the third resistor in sequence;
the source electrode of the MOS tube is respectively connected with the third port and the cathode of the voltage stabilizing diode, and the anode of the voltage stabilizing diode is connected with the grid electrode of the MOS tube through the fourth resistor;
the connection midpoint of the second resistor and the third resistor is connected with the second port.
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| CN202010629103.XA CN111923852B (en) | 2020-07-02 | 2020-07-02 | Vehicle generator control method and device |
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| CN202010629103.XA CN111923852B (en) | 2020-07-02 | 2020-07-02 | Vehicle generator control method and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112277661A (en) * | 2020-11-05 | 2021-01-29 | 北京机电工程研究所 | Intelligent energy management system and method based on all-electric drive vehicle-mounted platform |
| CN113240320A (en) * | 2021-05-31 | 2021-08-10 | 东风柳州汽车有限公司 | Power distribution strategy evaluation method and device for hydrogen fuel vehicle |
| CN114084086A (en) * | 2021-10-14 | 2022-02-25 | 江铃汽车股份有限公司 | Vehicle power distribution method and device, readable storage medium and vehicle |
| WO2023103983A1 (en) * | 2021-12-06 | 2023-06-15 | 北京罗克维尔斯科技有限公司 | Vehicle power control system, method and apparatus, storage medium, and vehicle |
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