CN117533151A - Vehicle-mounted solar power generation control method and vehicle - Google Patents
Vehicle-mounted solar power generation control method and vehicle Download PDFInfo
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- CN117533151A CN117533151A CN202311470274.2A CN202311470274A CN117533151A CN 117533151 A CN117533151 A CN 117533151A CN 202311470274 A CN202311470274 A CN 202311470274A CN 117533151 A CN117533151 A CN 117533151A
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- 238000010248 power generation Methods 0.000 title claims abstract description 154
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000001502 supplementing effect Effects 0.000 claims abstract description 82
- 230000005611 electricity Effects 0.000 claims abstract description 71
- 239000013589 supplement Substances 0.000 claims abstract description 51
- 238000004891 communication Methods 0.000 claims description 12
- 238000004590 computer program Methods 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 description 27
- 238000012544 monitoring process Methods 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 6
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- 238000006243 chemical reaction Methods 0.000 description 2
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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
- B60L8/00—Electric propulsion with power supply from forces of nature, e.g. sun or wind
- B60L8/003—Converting light into electric energy, e.g. by using photo-voltaic systems
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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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- 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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- Mechanical Engineering (AREA)
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a vehicle-mounted solar power generation control method and a vehicle, and relates to the technical field of vehicles. The vehicle-mounted solar power generation control method comprises the following steps: acquiring a first running state of on-board solar power generation equipment of a vehicle; acquiring a second running state of a battery of the vehicle when the first running state meets a first power supply condition of the battery; when the second running state meets a second electricity supplementing condition of the battery, controlling the vehicle-mounted solar power generation equipment to supplement electricity for the battery; and when the vehicle meets the solar energy electricity supplementing exit condition, controlling the vehicle-mounted solar power generation equipment to stop supplementing electricity for the battery. The invention realizes the coordination of the whole vehicle control logic of the vehicle provided with the vehicle-mounted solar equipment, namely, the control logic conflict between the vehicle-mounted solar equipment and other parts on the vehicle is avoided while the vehicle-mounted solar equipment can effectively operate on the vehicle.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a vehicle-mounted solar power generation control method and a vehicle.
Background
With the continuous improvement of solar power generation technology, solar power generation technology is also beginning to be applied to vehicles, such as for supplying power to new energy automobiles.
Currently, a solar power supply device for a new energy automobile mainly comprises a vehicle-mounted solar device and a solar power generation device arranged at a charging station. For lay solar power generation equipment at charging station in order to collect the storage with unifying behind converting solar energy into electric energy, on-vehicle solar equipment has a series of apparent advantages:
1. reduce dependence on charging stations: the vehicle-mounted solar equipment reduces the dependence of the new energy automobile on the charging station. The vehicle can be charged anytime and anywhere without waiting for the availability of a charging station, so that the charging convenience is improved.
2. The energy loss is reduced: because the vehicle-mounted solar equipment can directly convert solar energy into electric energy without corresponding energy conveying and storing, the energy conversion loss is reduced, and the charging efficiency is improved.
However, with respect to convenience of charging by plugging a gun at a charging station, the installation of the vehicle-mounted solar device on the new energy automobile needs to consider the coordination of the control logic of the whole automobile so as to avoid the occurrence of the collision between the vehicle-mounted solar device and other components of the new energy automobile. However, the prior art lacks an effective vehicle whole control logic for a new energy vehicle equipped with an on-board solar device.
Disclosure of Invention
The invention solves the problems that: how to ensure the coordination of the whole vehicle control logic of the new energy automobile provided with the vehicle-mounted solar equipment.
In order to solve the above problems, the present invention provides a vehicle-mounted solar power generation control method, including:
acquiring a first running state of on-board solar power generation equipment of a vehicle;
acquiring a second running state of a battery of the vehicle when the first running state meets a first power supply condition of the battery;
when the second running state meets a second electricity supplementing condition of the battery, controlling the vehicle-mounted solar power generation equipment to supplement electricity for the battery;
and when the vehicle meets the solar energy electricity supplementing exit condition, controlling the vehicle-mounted solar power generation equipment to stop supplementing electricity for the battery.
Optionally, when the first operation state meets a first power-up condition of a battery of the vehicle, acquiring the second operation state of the battery includes:
when the generated power of the vehicle-mounted solar power generation equipment is larger than or equal to a first preset power, acquiring the charge state and/or voltage of the battery;
when the second operation state meets a second electricity supplementing condition of the battery, controlling the vehicle-mounted solar power generation device to supplement electricity for the battery comprises the following steps:
and when the state of charge is smaller than a first preset power supplementing threshold value and/or the voltage is smaller than a first preset power supplementing voltage, controlling the vehicle-mounted solar power generation equipment to supplement power for the battery.
Optionally, the vehicle further comprises a whole vehicle controller, a solar controller and a battery controller; the vehicle-mounted solar power generation equipment, the solar controller, the battery controller and the battery are sequentially and electrically connected, and the solar controller and the battery controller are both in communication connection with the whole vehicle controller;
the acquiring the first running state of the vehicle-mounted solar power generation equipment of the vehicle comprises the following steps:
acquiring the first running state through the solar controller;
the obtaining the second operating state of the battery includes:
and acquiring the second running state through the battery controller.
Optionally, when the first operation state meets a first power-up condition of a battery of the vehicle, acquiring the second operation state of the battery includes:
when the first running state meets the first power supply condition, a power supply request command is sent to the whole vehicle controller through the solar controller;
and when the vehicle controller receives the power-on request command and determines that the power-on request command is effective, acquiring the second running state of the battery through the battery controller.
Optionally, when the first operation state meets a first power supply condition of a battery of the vehicle, the on-vehicle solar power generation control method further includes:
acquiring state information of corresponding components of the vehicle for solar energy recharging of the battery;
when the second operation state meets a second electricity supplementing condition of the battery, controlling the vehicle-mounted solar power generation device to supplement electricity for the battery comprises the following steps:
and if the second running state meets the second electricity supplementing condition and the components run normally, controlling the vehicle-mounted solar power generation equipment to supplement electricity for the battery.
Optionally, the vehicle further comprises a DC/DC converter connecting the on-board solar power generation device and the battery, and the on-board solar power generation device supplements power for the battery through the DC/DC converter;
if the second operation state meets the second electricity supplementing condition and the components are all in normal operation, controlling the vehicle-mounted solar power generation equipment to supplement electricity for the battery comprises:
if the second running state meets the second power supply condition and the components run normally, a charging permission signal is sent to the whole vehicle controller through the battery controller;
when the vehicle controller receives the charging permission signal, a solar energy power-up enabling signal is sent to the solar energy controller through the vehicle controller, and a DC/DC enabling signal is sent to a DC/DC converter of the vehicle.
Optionally, the vehicle further comprises a high-voltage relay, and the output end of the DC/DC converter is connected to the input end of the battery through the high-voltage relay;
when the vehicle controller receives the charge permission signal, sending, by the vehicle controller, a solar energy power-up enabling signal to the solar energy controller and sending, by the vehicle controller, a DC/DC enabling signal to a DC/DC converter of the vehicle includes:
when the vehicle controller receives the charging permission signal, the high-voltage relay is controlled to be closed;
and sending the solar energy power-up enabling signal to the solar energy controller through the whole vehicle controller, and sending the DC/DC enabling signal to the DC/DC converter.
Optionally, the second operating state includes a state of charge of the battery; when the second operation state meets a second electricity supplementing condition of the battery, controlling the vehicle-mounted solar power generation device to supplement electricity for the battery comprises the following steps:
when the battery is in a non-solar charging state, determining whether the non-solar charging state meets a charging requirement of the battery;
and when the non-solar charging state does not meet the charging requirement of the battery, controlling the vehicle-mounted solar power generation equipment to start to supplement electricity for the battery.
Optionally, the controlling the on-vehicle solar power generation device to supplement power to the battery includes:
acquiring power supply requirements of all electric loads of the vehicle, wherein the electric loads comprise the battery;
determining the supplementary power of each power load according to the first running state and the power supply requirement of the vehicle-mounted solar power generation equipment;
and supplementing electricity to each electric load according to the determined electric power supplementing power of each electric load.
In order to solve the above problems, the present invention further provides a vehicle, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the above-mentioned vehicle-mounted solar power generation control method is implemented when the processor executes the computer program.
Compared with the prior art, the invention has the following beneficial effects: the method can be used for vehicle-mounted solar power generation control of the new energy automobile, and coordination of the whole control logic of the automobile provided with the vehicle-mounted solar equipment is realized, namely, the control logic conflict between the vehicle-mounted solar equipment and other parts on the automobile is avoided while the vehicle-mounted solar equipment can effectively operate on the automobile. The method comprises the steps of firstly obtaining a first running state of the vehicle-mounted solar power generation equipment, and determining whether the current running state of the vehicle-mounted solar power generation equipment meets corresponding power supplementing conditions of battery power supplementing, namely determining whether the vehicle-mounted solar power generation equipment has the capacity of supplementing power for the battery. Thereafter, when it is determined that the first operating state of the on-vehicle solar power generation device satisfies the first power replenishment condition of the battery of the vehicle, acquisition of the second operating state of the battery is continued for determining whether the battery is suitable (or required) for replenishment in the current second operating state. And then, when the second running state of the battery meets the second electricity supplementing condition of the battery, controlling the vehicle-mounted solar power generation equipment to supplement electricity for the battery so as to convert solar energy into electric energy to be stored in the battery of the vehicle, thereby improving the endurance of the vehicle, improving the charging convenience of the vehicle, reducing the dependence of the vehicle on a charging station, reducing the energy loss of the vehicle in charging (namely, when the vehicle supplements electricity through the vehicle-mounted solar power generation equipment, the solar energy can be directly converted into electric energy and stored in the battery of the vehicle without an external energy storage device, simplifying the charging process of the battery, and reducing the energy loss in charging) and the like. And finally, when the vehicle is monitored to meet the solar energy recharging exit condition, the vehicle-mounted solar power generation equipment is timely controlled to stop recharging the battery, and negative influences (such as overcharge, invalid charge and the like) caused by the solar energy recharging in the current state are avoided.
Drawings
FIG. 1 is a flow chart of a vehicle-mounted solar power generation control method in an embodiment of the invention;
FIG. 2 is a schematic diagram of the connection of corresponding parts of a vehicle according to an embodiment of the present invention;
FIG. 3 is a sub-flowchart of step 200 in an embodiment of the present invention;
FIG. 4 is a sub-flowchart of step 300 in an embodiment of the present invention;
fig. 5 is a sub-flowchart of step 320 in an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.
Referring to fig. 1, an embodiment of the present invention provides a vehicle-mounted solar power generation control method, including the following steps:
step 100, a first operating state of an on-board solar power plant of a vehicle is acquired.
Specifically, the method firstly obtains the operation state (marked as a first operation state) of the vehicle-mounted solar power generation equipment (such as a solar controller and the like) arranged on the vehicle through corresponding equipment for monitoring the operation state of the vehicle-mounted solar power generation equipment, so as to determine whether the current first operation state of the vehicle-mounted solar power generation equipment meets corresponding power supplementing conditions for supplementing power to a battery of the vehicle (new energy automobile or new energy vehicle, hereinafter referred to as vehicle). The first operation state includes a power generation state (including whether power is normally generated and voltage, current, power and the like of power generation) of the vehicle-mounted solar power generation device, device parameters (including corresponding input and output parameters and the like set by a vehicle-mounted solar factory), and the like.
Step 200, when the first running state meets the first power supplementing condition of the battery of the vehicle, acquiring a second running state of the battery.
Specifically, when the first operation state of the on-vehicle solar power generation device obtained in step 100 satisfies a corresponding power supplementing condition (denoted as a first power supplementing condition) for supplementing power to the battery of the vehicle, the operation state (denoted as a second operation state) of the battery is obtained through a corresponding device (such as a battery controller) for monitoring the operation state of the battery, so as to determine whether the battery is suitable (or required) for power supplementing in the current second operation state. The first power supplementing condition is used for determining whether the vehicle-mounted solar power generation device meets the power supplementing requirement of the battery in the current first operation state, such as whether the power generation power of the vehicle-mounted solar power generation device meets the input requirement of battery power supplementing or not. The second operating state of the battery includes the current state of charge of the battery (i.e., the ratio of the remaining capacity of the battery to the capacity of its fully charged state), the voltage, etc.
And 300, controlling the vehicle-mounted solar power generation equipment to supplement electricity for the battery when the second running state meets the second electricity supplementing condition of the battery.
Specifically, when the second running state of the battery meets the second electricity supplementing condition of the battery, if the remaining capacity of the battery is lower than a certain degree, the battery is considered to be suitable (or needed) for electricity supplementing in the current second running state, at this time, the vehicle-mounted solar power generation equipment is controlled to supplement electricity for the battery, so that solar energy is converted into electric energy to be stored in the battery of the vehicle, and the cruising duration of the vehicle is improved.
And 400, when the vehicle meets the solar energy electricity supplementing exit condition, controlling the vehicle-mounted solar power generation equipment to stop supplementing electricity for the battery.
Specifically, the corresponding parts of the vehicle are monitored in real time, and when the states of the corresponding parts of the vehicle change to meet the solar energy electricity supplementing exit condition, the vehicle-mounted solar power generation equipment is controlled to stop supplementing electricity to the battery. The method comprises the steps of monitoring the running state of a battery of a vehicle in real time, feeding back the end of charging by a battery controller when the battery is monitored to finish charging (if the residual electric quantity of the battery is higher than a certain degree), and controlling the vehicle-mounted solar power generation equipment to timely stop charging the battery, so that the overcharge of the battery is avoided, and the service life of the battery is prolonged; the method comprises the steps of monitoring an operation command of a driver and a state of a vehicle system in real time, and controlling vehicle-mounted solar power generation equipment to timely stop supplying power to a battery when the whole vehicle recognizes that the driver performs corresponding operation (such as stopping or switching charging, running modes and the like) on a stop lever or a brake device of the vehicle so as to send corresponding commands to the vehicle or a higher-level system fault occurs in the vehicle system, so that negative effects and the like caused by solar power supply in the current state are avoided; the running states of the vehicle-mounted solar power generation equipment and the solar controller are monitored in real time, when the vehicle-mounted solar power generation equipment or the solar controller fails or the charging power is too small, the vehicle-mounted solar power generation equipment is controlled to timely stop supplying electricity to the battery, invalid charging is avoided, energy waste is reduced, and the reliability of the system is ensured.
Therefore, the method can be used for vehicle-mounted solar power generation control of the new energy automobile, and coordination of the whole control logic of the vehicle provided with the vehicle-mounted solar equipment is realized, namely, the control logic conflict between the vehicle-mounted solar equipment and other parts on the vehicle is avoided while the vehicle-mounted solar equipment can effectively operate on the vehicle. The method comprises the steps of firstly obtaining a first running state of the vehicle-mounted solar power generation equipment, and determining whether the current running state of the vehicle-mounted solar power generation equipment meets corresponding power supplementing conditions of battery power supplementing, namely determining whether the vehicle-mounted solar power generation equipment has the capacity of supplementing power for the battery. Thereafter, when it is determined that the first operating state of the on-vehicle solar power generation device satisfies the first power replenishment condition of the battery of the vehicle, acquisition of the second operating state of the battery is continued for determining whether the battery is suitable (or required) for replenishment in the current second operating state. And then, when the second running state of the battery meets the second electricity supplementing condition of the battery, controlling the vehicle-mounted solar power generation equipment to supplement electricity for the battery so as to convert solar energy into electric energy to be stored in the battery of the vehicle, thereby improving the endurance of the vehicle, improving the charging convenience of the vehicle, reducing the dependence of the vehicle on a charging station, reducing the energy loss of the vehicle in charging (namely, when the vehicle supplements electricity through the vehicle-mounted solar power generation equipment, the solar energy can be directly converted into electric energy and stored in the battery of the vehicle without an external energy storage device, simplifying the charging process of the battery, and reducing the energy loss in charging) and the like. And finally, when the vehicle is monitored to meet the solar energy recharging exit condition, the vehicle-mounted solar power generation equipment is timely controlled to stop recharging the battery, and negative influences (such as overcharge, invalid charge and the like) caused by the solar energy recharging in the current state are avoided.
Alternatively, the solar panel of the on-vehicle solar power generation apparatus for converting solar energy into electric energy may be mounted at a position of a backdrop, a sunroof, a cabin cover, a glass window, or the like of a vehicle.
Optionally, step 200 includes:
and when the generated power of the vehicle-mounted solar power generation equipment is greater than or equal to the first preset power, acquiring the charge state and/or the voltage of the battery.
Specifically, the first electricity supplementing condition includes that the generated power of the vehicle-mounted solar power generation equipment is greater than or equal to a first preset power. In step 200, when the generated power of the on-vehicle solar power generation device in the first operation state of the on-vehicle solar power generation device obtained in step 100 is greater than or equal to the first preset power, it is considered that the first operation state of the on-vehicle solar power generation device meets the first recharging condition for recharging the battery of the vehicle, that is, the second operation state of the battery (such as the state of charge and/or the voltage of the battery) may be obtained.
Step 300 includes:
and when the state of charge is smaller than a first preset power supplementing threshold value and/or the voltage is smaller than a first preset power supplementing voltage, controlling the vehicle-mounted solar power generation equipment to supplement power for the battery.
Specifically, the second power-up condition includes at least one of a current state of charge of the battery being less than a first preset power-up threshold, and a current voltage of the battery being less than a first preset power-up voltage. In step 300, when the state of charge in the second operation state of the battery obtained in step 200 is smaller than the first preset power supplementing threshold value and/or the voltage is smaller than the first preset power supplementing voltage, the battery is considered to be suitable (or required) for supplementing power in the current second operation state, and thus the vehicle-mounted solar power generation device can be controlled to supplement power for the battery. Wherein the remaining charge of the battery is determined by the current state of charge and/or voltage of the battery. In some embodiments, the second power-up condition is satisfied while the current state of charge of the battery is less than a first preset power-up threshold value and the current voltage of the battery is less than a first preset power-up voltage, so as to avoid corresponding errors in acquiring the current state of charge or voltage of the battery, and improve the reliability of the method.
Optionally, the vehicle further comprises a DC/DC converter connecting the on-board solar power plant with the battery; controlling the vehicle-mounted solar power generation device to supplement power for the battery comprises the following steps:
and controlling the vehicle-mounted solar power generation equipment to supplement power for the battery through the DC/DC converter of the vehicle.
Specifically, the DC/DC converter is provided between the output of the on-board solar power plant and the input of the battery of the vehicle, or is integrated in the on-board solar power plant, or is integrated in the solar controller. The method converts (such as regulating voltage and the like) direct current generated by converting solar energy into direct current suitable for battery charging through a DC/DC converter so as to match the charging requirement of the battery.
Alternatively, the battery of the vehicle includes a high voltage battery (power battery) that powers the high voltage system of the vehicle, such as the primary power source of the vehicle, and a low voltage battery; the low-voltage battery is used to power low-voltage systems of a vehicle, such as lighting, sound, communication and auxiliary equipment of the vehicle. The high-voltage battery and the low-voltage battery can be subjected to solar power supply through DC/DC converters with different specifications so as to respectively match the power supply requirements of the high-voltage battery and the low-voltage battery.
Optionally, as shown in conjunction with fig. 2, the vehicle further includes a whole vehicle controller, a solar controller, and a battery controller; the vehicle-mounted solar power generation equipment, the solar controller, the battery controller and the battery are sequentially and electrically connected, and the solar controller and the battery controller are both in communication connection with the whole vehicle controller;
acquiring a first operating state of an on-board solar power plant of a vehicle includes:
acquiring a first running state through a solar controller;
acquiring the second operating state of the battery includes:
the second operating state is acquired by the battery controller.
In this embodiment, the on-vehicle solar power generation device, the solar controller, the battery controller, and the battery of the vehicle are electrically connected in order so that the on-vehicle solar power generation device supplies power (supplements power) to the battery through the solar controller, the battery controller, and the like. The solar controller is in communication connection with the vehicle-mounted solar power generation equipment and is used for monitoring and controlling the vehicle-mounted solar power generation equipment, optimizing the performance of the vehicle-mounted solar power generation equipment and the like so as to improve the availability and efficiency of solar energy. The battery controller is in communication connection with the battery and is used for managing and monitoring the battery of the vehicle and ensuring the safety, performance and the like of the battery. The whole vehicle controller (Vehicle Control Unit, VCU) is a key control unit in the vehicle and is responsible for coordinating and managing the operation of the whole vehicle and the like; the solar controller and the battery controller are in communication connection with the whole vehicle controller, so that the whole vehicle controller can coordinate according to the first running state of the vehicle-mounted solar power generation device monitored by the solar controller and the second running state of the battery monitored by the battery controller, and the battery can supplement electricity through the vehicle-mounted solar power generation device. The vehicle controller is used as a main coordination and control unit of the high-voltage energy supplementing function; the solar controller is responsible for actively requesting high-voltage electricity supplementing according to the generated power of the vehicle-mounted solar power generation equipment, the whole vehicle controller coordinates and arbitrates the request, and the battery controller is responsible for self-charging preparation and receiving and the like. In some embodiments, the solar controller is in communication connection with the vehicle-mounted solar power generation device, for example, the vehicle-mounted solar power generation device is provided with corresponding sensors for monitoring a first operation state of the vehicle-mounted solar power generation device, and the solar controller is in communication connection with the sensors so as to realize monitoring of the first operation state and the like of the vehicle-mounted solar power generation device by the solar controller; the battery controller is in communication connection with the battery, for example, the battery is provided with corresponding sensors for monitoring a second running state of the battery, and the battery controller is in communication connection with the sensors so as to monitor the second running state of the battery and the like.
Optionally, the vehicle controller, the solar controller, the power battery controller and the like communicate through a CAN network (CAN bus).
Optionally, as shown in connection with fig. 1-3, step 200 includes:
step 210, when the first running state meets the first power supply condition, sending a power supply request command to the whole vehicle controller through the solar controller;
step 220, when the vehicle controller receives the power-up request command and determines that the power-up request command is valid, the second running state of the battery is obtained through the battery controller.
Specifically, in step 210, when the first running state meets the first power-up condition of the battery of the vehicle, a power-up request command is sent to the whole vehicle controller through the solar controller, so as to coordinate the solar power-up of the battery through the whole vehicle controller; in step 220, when the vehicle controller receives the power-up request command and determines that the power-up request command is valid, the second running state of the battery is obtained through the battery controller, and whether the battery meets the second power-up condition is determined through the vehicle controller or the battery controller according to the second running state of the battery.
And judging and deciding whether the power-on request command is effective or not according to corresponding information obtained through a solar controller and the like by the whole vehicle controller so as to eliminate the possibility of false triggering and the like. Specifically, the command source can be verified through the whole vehicle controller so as to ensure that the received power supplementing request command is from a legal solar controller and a vehicle-mounted solar power generation device (such as identification verification is carried out according to the obtained vehicle-mounted solar power generation device ID and the obtained vehicle-mounted solar power generation device ID), so that the adverse effect of the unauthorized solar controller or the vehicle-mounted solar power generation device on the vehicle is avoided; the integrity check of the data is verified by the vehicle controller to check whether the received power up request command is complete and not tampered with (e.g., using a checksum, hash value, or other integrity verification mechanism to verify the consistency of the data). The safety and the reliability of a vehicle system are improved; and (3) performing time stamp checking through the whole vehicle controller to ensure that the time stamp of the power-on request command is in an acceptable time range relative to the system time of the whole vehicle controller, and if the time stamp of the power-on request command is out of date, the time stamp can be regarded as invalid and the like so as to ensure the timeliness of the corresponding command request.
Optionally, when the first operating state satisfies a first power replenishment condition of a battery of the vehicle, the method further comprises:
acquiring state information of a corresponding part of the vehicle for solar energy recharging of a battery;
step 300 includes:
and if the second running state meets the second electricity supplementing condition and the components are all running normally, controlling the vehicle-mounted solar power generation equipment to supplement electricity for the battery.
Specifically, in step 200, when the first operation state satisfies the first power recharging condition of the battery of the vehicle, state information of the corresponding component of the vehicle for solar power recharging of the battery (i.e., recharging by the on-vehicle solar power generation device or the like) is acquired for determining whether the above-described component is operating normally, while the second operation state of the battery is acquired. In step 300, if the second operation state meets the second electricity supplementing condition of the battery and the corresponding components for supplementing solar energy to the battery are all operating normally, controlling the vehicle-mounted solar power generation equipment to supplement electricity to the battery; if a part of the components for supplementing solar energy of the battery fails (or is not allowed to work), the fault is checked and reported (the vehicle owner is reminded in a mode such as audible and visual alarm). The corresponding components for the battery to supplement solar energy comprise vehicle-mounted solar power generation equipment, a solar controller, a DC/DC converter, a high-voltage relay (described below), a battery controller, the battery, corresponding power supplementing circuits and the like. Thus, the battery can be ensured to normally and smoothly supplement electricity through the vehicle-mounted solar power generation equipment and the like.
Optionally, as shown in fig. 1, fig. 2, and fig. 4, if the second operation state meets the second power supply condition of the battery and the components are all operating normally, controlling the vehicle-mounted solar power generation device to supply power to the battery includes:
step 310, if the second running state meets the second power supply condition of the battery and the components are all running normally, sending a charging permission signal to the whole vehicle controller through the battery controller;
step 320, when the vehicle controller receives the charge permission signal, the vehicle controller sends a solar energy power-up enabling signal to the solar energy controller, and sends a DC/DC enabling signal to the DC/DC converter of the vehicle.
Specifically, in step 310, when the second operation state meets the second power-up condition of the battery and the corresponding components for performing solar power-up of the battery are all operating normally, a charging permission signal (which indicates that the battery is permitted to start solar power-up) is sent to the whole vehicle controller by the battery controller; in step 320, when the whole vehicle controller receives the charge permission signal, the whole vehicle controller sends a solar energy power-up enabling signal to the solar energy controller, and sends a DC/DC enabling signal to the DC/DC converter, namely, the vehicle-mounted solar power generation device is controlled to supplement power to the battery, so that the vehicle-mounted solar power generation device and the DC/DC converter start to work in battery power supplement, and the vehicle-mounted solar power generation device starts to convert direct current obtained by converting solar energy into direct current matched with the battery charge requirement through the DC/DC converter so as to supplement power to the battery. Therefore, through the transmission and interaction of the signals, the solar energy can be ensured to effectively supplement the battery and provide energy for the whole vehicle, and the solar energy electricity supplement of the battery is ensured to be carried out only under proper conditions, so that the orderly operation, the safety and the efficiency of the whole system are ensured.
Optionally, the vehicle further comprises a high voltage relay, the output of the DC/DC converter being connected to the input of the battery via the high voltage relay.
In particular, in vehicles, high voltage relays are used to isolate high voltage systems (such as DC/DC converters) from other vehicle systems (such as battery controllers or batteries) to ensure that the batteries can be safely disconnected from the high voltage systems, particularly in emergency situations or when maintenance and repair is required. The high-voltage relay is arranged between the output end of the DC/DC converter and the input end of the battery, and can be integrated in the battery controller or arranged between the output end of the DC/DC converter and the battery controller.
As shown in conjunction with fig. 4 and 5, step 320 includes:
step 321, when the vehicle controller receives a charging permission signal, the high-voltage relay is controlled to be closed;
step 322, a solar energy power-up enabling signal is sent to the solar energy controller through the whole vehicle controller, and a DC/DC enabling signal is sent to the DC/DC converter.
For the high-voltage relay, the closing requirement is judged by judging the corresponding signals after the solar power supply requirement logic (if the second running state meets the second power supply condition of the battery) and the whole vehicle condition (if the corresponding components for the battery to perform solar power supply are all normally running) are finished, and the corresponding signals are used as the requirements for activating the closing of the high-voltage relay, for example, the charging permission signals are used as the corresponding signals for activating the closing of the high-voltage relay. Specifically, in step 321, when the vehicle controller receives the charge permission signal, the high-voltage relay is controlled to be closed by the vehicle controller or the battery controller (the high-voltage relay is in communication connection with the vehicle controller or the battery controller). In step 322, after the vehicle controller receives feedback that the actual state of the high-voltage relay is closed (directly from the high-voltage relay or from the battery controller), the vehicle controller sends a solar power-supplementing enabling signal to the solar controller, and sends a DC/DC enabling signal to the DC/DC converter, so that the solar output power is fed to the power battery to supplement power for the battery.
Optionally, the second operating state comprises a state of charge of the battery; step 300 includes:
when the battery is in a non-solar charging state, determining whether the non-solar charging state meets the charging requirement of the battery;
and when the non-solar charging state does not meet the charging requirement of the battery, controlling the vehicle-mounted solar power generation equipment to start supplying electricity to the battery.
Specifically, the second operation state of the battery obtained in step 200 includes a charging state of the battery, where the charging state includes charging or not of the battery and a charging mode corresponding to the charging. In step 300, if the battery is currently in a non-solar charging state, i.e. the battery is charging but the charging mode is a non-solar charging mode (e.g. engine power, gun charging, etc.), determining whether the non-solar charging state meets the charging requirement (e.g. the requirement in terms of charging rate, etc.) of the battery; when the charging requirement of the battery is not met by the non-solar charging state, if the charging rate of the battery is smaller than or equal to the power consumption rate of the battery, the vehicle-mounted solar power generation equipment is controlled to start to supplement power for the battery, and the battery solar power supplement and other non-solar charging are simultaneously carried out, so that the battery power supplement (charging) rate is further improved, and the guarantee is provided for the electric quantity supply of the vehicle. In some embodiments, if the vehicle has other types of charging modes (non-solar charging), the charging modes may also be prioritized according to the current state of the vehicle, etc., and the coexistence determination; for example, when a vehicle owner camps outdoors, the priority of solar energy recharging of the vehicle may be higher than engine power to reduce the cost of vehicle use, etc.
Optionally, step 300 includes:
when the battery is in a non-solar charging state, determining whether the non-solar charging state meets the charging requirement of the battery;
when the non-solar charging state does not meet the charging requirement of the battery, the second running state meets the second power supplementing condition of the battery, and corresponding components for supplementing solar power to the battery are all normally operated, and a charging permission signal is sent to the whole vehicle controller through the battery controller;
when the vehicle controller receives the charging permission signal, the vehicle-mounted solar power generation equipment is controlled to supplement electricity for the battery.
Optionally, controlling the on-board solar power generation device to recharge the battery includes:
acquiring power supply requirements of various electric loads of the vehicle, wherein the electric loads comprise batteries;
determining the power compensation power of each power utilization load according to the first running state and the power supply requirement of the vehicle-mounted solar power generation equipment;
and supplementing electricity to each electric load according to the determined electric supplementing power of each electric load.
Specifically, the vehicle-mounted solar power generation device in the method can be used for supplying power (supplementing power) to various electric loads of a vehicle, wherein the electric loads comprise a high-voltage battery (power battery), a low-voltage battery, a high-voltage compressor (used for cooling or heating a vehicle-mounted air conditioner), a high-voltage heating unit (PTC (used for heating a vehicle power battery), a DC/DC converter, a charging controller and the like. According to the method, the power supply requirements of all the electric loads of the vehicle are acquired, so that the power supply power required by all the electric loads is determined (coordinated and distributed) by combining the first running state of the vehicle-mounted solar power generation equipment with the power supply requirements and the like, and/or the vehicle-mounted solar power generation equipment can provide the required power supply for all the electric loads, and after the power supply power of all the electric loads is determined, the power supply of all the electric loads can be carried out through the vehicle-mounted solar power generation equipment according to the determined power supply power of all the electric loads. In some embodiments, the conversion efficiency of the DC/DC converter, etc. is taken into account when determining that the on-board solar power plant is capable of providing the required supplemental power for each electrical load.
The solar controller is used for generating available high-voltage electricity supplementing power based on the vehicle-mounted solar power generation equipment, and the whole vehicle controller and the like perform whole vehicle low-voltage load power coordination control, whole vehicle thermal management demand power coordination control and system charging power limitation control according to the electric load demands of the vehicles, and finally outputs power allowing the power battery to supplement electricity and outputs power allowing other electric loads to supplement electricity to other electric loads. The low-voltage load power coordination control is to take low-voltage required power in the high-voltage electricity supplementing process as an input into a part of energy consumption, and take the range of available high-voltage electricity supplementing power values of solar energy into consideration for correction, and takes actual current and actual voltage at the high-voltage side of the DC/DC converter as calculation signals. The power consumption caused by the requirements of heating the high-temperature and low-temperature power battery or refrigerating the passenger cabin is considered on the basis of the high-voltage electric power supplement after the low-voltage power coordination. The system charging power limit control considers two points: high voltage accessory power priority control and charging process limit control; the high-voltage accessories mainly comprise a DC/DC converter, a high-voltage compressor, a high-voltage heating unit, a charging controller and the like, the power capable of supporting each high-voltage accessory is corrected according to the available high-voltage electric supplementing power of the solar energy controller, if the available electric supplementing power of the solar energy can not simultaneously support the electric supplementing of the power battery and meet the consumption of the accessories at the moment, the part with higher functional safety (such as extremely low electric quantity of the power battery and the need of electric supplementing to meet the safety requirement) is preferentially met, the comfort requirement (air conditioning refrigeration or heating) is followed, and finally the normal power battery electric supplementing requirement is met; in the charging process limitation control, the maximum power overrun limitation is needed for the fluctuation and overrun of the solar energy allowable power supply in the actual power supply process, and in addition, the charging power is limited by a charging current limitation signal from a power battery.
Optionally, the solar energy recharging exit condition includes: the battery is used for completing power supply, the vehicle receives a corresponding instruction for exiting solar power supply, a corresponding fault occurs in a vehicle machine system of the vehicle or the power generation power of the vehicle-mounted solar power generation equipment is smaller than the second preset power.
Specifically, when the vehicle satisfies the solar power charging exit condition, the vehicle-mounted solar power generation device is controlled to stop charging the battery. Wherein, the solar energy electricity supplementing exit condition includes: the battery is used for completing power supply, the vehicle receives a corresponding instruction for exiting solar power supply, a corresponding fault occurs in a vehicle machine system of the vehicle or the power generation power of the vehicle-mounted solar power generation equipment is smaller than the second preset power, and the like. The method comprises the steps of monitoring the running state of a battery of a vehicle in real time, feeding back the end of charging by a battery controller when the battery is monitored to finish charging (if the residual electric quantity of the battery is higher than a certain degree), and controlling the vehicle-mounted solar power generation equipment to timely stop charging the battery, so that the overcharge of the battery is avoided, and the service life of the battery is prolonged; the method comprises the steps of monitoring an operation command of a driver and a state of a vehicle system in real time, and controlling vehicle-mounted solar power generation equipment to timely stop supplementing power to a battery when the whole vehicle recognizes that the driver performs corresponding operation (such as stopping or switching charging, running modes and the like) on a stop lever or a brake device of the vehicle so as to send out corresponding commands for exiting solar power supplement to the vehicle or higher-level system faults of the vehicle system, so that negative effects and the like caused by solar power supplement in the current state are avoided; the running states of the vehicle-mounted solar power generation equipment and the solar controller are monitored in real time, and when the vehicle-mounted solar power generation equipment or the solar controller fails or the charging power is too small (smaller than the second preset power, for example), the vehicle-mounted solar power generation equipment is controlled to timely stop supplying electricity to the battery, so that invalid charging is avoided, energy waste is reduced, and the reliability of the system is ensured. In some embodiments, the second preset power is less than the first preset power.
The embodiment of the invention provides a vehicle, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the computer program is executed by the processor to realize the vehicle-mounted solar power generation control method.
In this way, the coordination of the whole vehicle control logic of the vehicle provided with the vehicle-mounted solar equipment is realized by the coordination of the structures such as a memory and a processor of the vehicle, so that the vehicle-mounted solar equipment can effectively operate on the vehicle, and the control logic conflict between the vehicle-mounted solar equipment and other parts on the vehicle is avoided.
Although the invention is disclosed above, the scope of the invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications will fall within the scope of the invention.
Claims (10)
1. The vehicle-mounted solar power generation control method is characterized by comprising the following steps of:
acquiring a first running state of on-board solar power generation equipment of a vehicle;
acquiring a second running state of a battery of the vehicle when the first running state meets a first power supply condition of the battery;
when the second running state meets a second electricity supplementing condition of the battery, controlling the vehicle-mounted solar power generation equipment to supplement electricity for the battery;
and when the vehicle meets the solar energy electricity supplementing exit condition, controlling the vehicle-mounted solar power generation equipment to stop supplementing electricity for the battery.
2. The on-vehicle solar power generation control method according to claim 1, wherein the obtaining the second operation state of the battery when the first operation state satisfies a first power replenishment condition of the battery of the vehicle comprises:
when the generated power of the vehicle-mounted solar power generation equipment is larger than or equal to a first preset power, acquiring the charge state and/or voltage of the battery;
when the second operation state meets a second electricity supplementing condition of the battery, controlling the vehicle-mounted solar power generation device to supplement electricity for the battery comprises the following steps:
and when the state of charge is smaller than a first preset power supplementing threshold value and/or the voltage is smaller than a first preset power supplementing voltage, controlling the vehicle-mounted solar power generation equipment to supplement power for the battery.
3. The vehicle-mounted solar power generation control method according to claim 1, wherein the vehicle further comprises a whole vehicle controller, a solar controller and a battery controller; the vehicle-mounted solar power generation equipment, the solar controller, the battery controller and the battery are sequentially and electrically connected, and the solar controller and the battery controller are both in communication connection with the whole vehicle controller;
the acquiring the first running state of the vehicle-mounted solar power generation equipment of the vehicle comprises the following steps:
acquiring the first running state through the solar controller;
the obtaining the second operating state of the battery includes:
and acquiring the second running state through the battery controller.
4. The on-vehicle solar power generation control method according to claim 3, wherein the obtaining the second operation state of the battery when the first operation state satisfies a first power replenishment condition of the battery of the vehicle comprises:
when the first running state meets the first power supply condition, a power supply request command is sent to the whole vehicle controller through the solar controller;
and when the vehicle controller receives the power-on request command and determines that the power-on request command is effective, acquiring the second running state of the battery through the battery controller.
5. The on-vehicle solar power generation control method according to claim 3, characterized in that the on-vehicle solar power generation control method further includes, when the first operation state satisfies a first power replenishment condition of a battery of the vehicle:
acquiring state information of corresponding components of the vehicle for solar energy recharging of the battery;
when the second operation state meets a second electricity supplementing condition of the battery, controlling the vehicle-mounted solar power generation device to supplement electricity for the battery comprises the following steps:
and if the second running state meets the second electricity supplementing condition and the components run normally, controlling the vehicle-mounted solar power generation equipment to supplement electricity for the battery.
6. The on-vehicle solar power generation control method according to claim 5, wherein the vehicle further includes a DC/DC converter connecting the on-vehicle solar power generation device with the battery, the on-vehicle solar power generation device supplementing the battery through the DC/DC converter;
if the second operation state meets the second electricity supplementing condition and the components are all in normal operation, controlling the vehicle-mounted solar power generation equipment to supplement electricity for the battery comprises:
if the second running state meets the second power supply condition and the components run normally, a charging permission signal is sent to the whole vehicle controller through the battery controller;
when the vehicle controller receives the charging permission signal, a solar energy power-up enabling signal is sent to the solar energy controller through the vehicle controller, and a DC/DC enabling signal is sent to a DC/DC converter of the vehicle.
7. The on-vehicle solar power generation control method according to claim 6, wherein the vehicle further includes a high-voltage relay, and an output terminal of the DC/DC converter is connected to an input terminal of a battery through the high-voltage relay;
when the vehicle controller receives the charge permission signal, sending, by the vehicle controller, a solar energy power-up enabling signal to the solar energy controller and sending, by the vehicle controller, a DC/DC enabling signal to a DC/DC converter of the vehicle includes:
when the vehicle controller receives the charging permission signal, the high-voltage relay is controlled to be closed;
and sending the solar energy power-up enabling signal to the solar energy controller through the whole vehicle controller, and sending the DC/DC enabling signal to the DC/DC converter.
8. The on-vehicle solar power generation control method according to any one of claims 1 to 7, wherein the second operation state includes a state of charge of the battery; when the second operation state meets a second electricity supplementing condition of the battery, controlling the vehicle-mounted solar power generation device to supplement electricity for the battery comprises the following steps:
when the battery is in a non-solar charging state, determining whether the non-solar charging state meets a charging requirement of the battery;
and when the non-solar charging state does not meet the charging requirement of the battery, controlling the vehicle-mounted solar power generation equipment to start to supplement electricity for the battery.
9. The on-vehicle solar power generation control method according to any one of claims 1 to 7, wherein the controlling the on-vehicle solar power generation device to supplement the battery includes:
acquiring power supply requirements of all electric loads of the vehicle, wherein the electric loads comprise the battery;
determining the supplementary power of each power load according to the first running state and the power supply requirement of the vehicle-mounted solar power generation equipment;
and supplementing electricity to each electric load according to the determined electric power supplementing power of each electric load.
10. A vehicle comprising a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor, implements the on-board solar power generation control method of any one of claims 1-9.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118214133A (en) * | 2024-02-27 | 2024-06-18 | 中通客车股份有限公司 | Solar electricity supplementing system for automobile, automobile and electricity supplementing control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118214133A (en) * | 2024-02-27 | 2024-06-18 | 中通客车股份有限公司 | Solar electricity supplementing system for automobile, automobile and electricity supplementing control method |
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