CN112406539A - Method, device and equipment for supplying power to vehicle low-voltage system on demand and storage medium - Google Patents
Method, device and equipment for supplying power to vehicle low-voltage system on demand and storage medium Download PDFInfo
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- CN112406539A CN112406539A CN202011425084.5A CN202011425084A CN112406539A CN 112406539 A CN112406539 A CN 112406539A CN 202011425084 A CN202011425084 A CN 202011425084A CN 112406539 A CN112406539 A CN 112406539A
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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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
Abstract
The invention belongs to the technical field of new energy automobiles, and discloses a method, a device, equipment and a storage medium for supplying power to a vehicle low-voltage system as required. The method comprises the following steps: receiving a starting-up instruction of a vehicle controller on a vehicle, and starting a first port according to the starting-up instruction; acquiring a low-voltage working requirement of a low-voltage module on the vehicle, and controlling the first port to supply power according to the low-voltage working requirement; receiving a working instruction of the vehicle upper-mounted controller, and starting a second port according to the working instruction; and acquiring the additional work requirement of the upper controller, and controlling the second port to supply power according to the additional work requirement of the upper controller. Through the mode, only one set of low-voltage system can be used in the new energy automobile to adapt to different voltage requirements in the automobile.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a method, a device, equipment and a storage medium for supplying power to a vehicle low-voltage system as required.
Background
With the continuous popularization of the energy environmental protection and energy saving concept, the automobile is more and more widely used, and the standard voltage of 12V is basically used for the new energy automobile industry at present. Especially in the field of new energy commercial vehicles, a 12V low-voltage system is commonly used, but the 24/48V system of a traditional vehicle is basically used for loading products on special vehicles. Therefore, two or more low-voltage driving systems are generally developed in a new energy whole vehicle enterprise, different low-voltage driving systems are selected according to loading requirements of different special vehicles, development cost is increased, and management and control and popularization of the system are not facilitated.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a method, a device, equipment and a storage medium for supplying power to a vehicle low-voltage system as required, and aims to solve the technical problem that a set of low-voltage driving system in the prior art cannot meet the loading requirements of different special vehicles.
In order to achieve the above object, the present invention provides a method for on-demand power supply of a low voltage system of a vehicle, comprising the steps of:
receiving a starting-up instruction of a vehicle controller on a vehicle, and starting a first port according to the starting-up instruction;
acquiring a low-voltage working requirement of a low-voltage module on the vehicle, and controlling the first port to supply power according to the low-voltage working requirement;
receiving a working instruction of the vehicle upper-mounted controller, and starting a second port according to the working instruction;
and acquiring the additional work requirement of the upper controller, and controlling the second port to supply power according to the additional work requirement of the upper controller.
Optionally, before acquiring a low-voltage working requirement of a low-voltage module on the vehicle and controlling the first port to supply power according to the low-voltage working requirement, the method further includes:
sending the starting state of the first port to the vehicle control unit, so that the vehicle control unit feeds back a first required voltage message and a first required power message of the low-voltage module according to the starting state;
receiving a first required voltage message and a first required power message fed back by the vehicle control unit;
and obtaining the low-voltage working requirement of the low-voltage module according to the first demand voltage message and the first demand power message.
Optionally, after acquiring a low-voltage working requirement of a low-voltage module on the vehicle and controlling the first port to supply power according to the low-voltage working requirement, the method further includes:
receiving the working state of the first port fed back by the vehicle control unit, and judging whether the working state of the first port is consistent with the low-voltage working demand state;
if the working state of the first port is inconsistent with the low-voltage working demand state, a first fault code is sent to the vehicle control unit, so that the vehicle control unit starts a self-protection mode.
Optionally, before the acquiring the additional work requirement of the upper mounted controller and controlling the second port to supply power according to the additional work requirement of the upper mounted controller, the method further includes:
sending the starting state of the second port to the upper controller, so that the upper controller feeds back a second required voltage message and a second required power message of the upper controller according to the starting state;
receiving a second required voltage message and a second required power message fed back by the upper controller;
and obtaining the additional work requirement of the upper-mounted controller according to the second required voltage message and the second required power message.
Optionally, after the obtaining the additional work requirement of the upper mounted controller and controlling the second port to supply power according to the additional work requirement of the upper mounted controller, the method further includes:
receiving the working state of the second port fed back by the upper controller, and judging whether the working state of the second port is consistent with the additional working demand state;
and if the working state of the second port is inconsistent with the additional working demand state, sending a second fault code to the upper controller so that the upper controller starts a self-protection mode.
Optionally, before receiving a work instruction of the onboard vehicle controller and starting the second port according to the work instruction, the method further includes:
judging whether an activation instruction of the vehicle control unit is received or not;
and if the activation instruction of the vehicle control unit is received, activating a second port.
Optionally, the receiving a power-on instruction of a vehicle control unit on a vehicle, and starting a first port according to the power-on instruction includes:
receiving a starting-up instruction of a vehicle controller on a vehicle, monitoring a first port according to the starting-up instruction, and sending temperature information of the first port to the vehicle controller so that the vehicle controller judges whether the temperature information of the first port is in a normal range, and if the temperature information of the first port is in the normal range, feeding back a normal detection result of the first port;
and starting the first port according to the detection result.
In addition, to achieve the above object, the present invention also provides an on-demand power supply apparatus for a low voltage system of a vehicle, including:
a starting module: the system comprises a first port, a second port and a power-on interface, wherein the first port is used for receiving a power-on instruction of a vehicle controller on a vehicle and starting the first port according to the power-on instruction;
a power supply module: the system comprises a first port, a second port, a first control module and a second control module, wherein the first port is used for acquiring the low-voltage working requirement of a low-voltage module on the vehicle and controlling the first port to supply power according to the low-voltage working requirement;
the starting module is used for: the system is also used for receiving a working instruction of the on-board controller of the vehicle and starting the second port according to the working instruction;
the power supply module: and the second port is controlled to supply power according to the additional work requirement of the upper controller.
In addition, to achieve the above object, the present invention also provides a vehicle low-voltage system on-demand power supply apparatus, including: a memory, a processor and a vehicle low voltage system on demand power supply program stored on the memory and executable on the processor, the vehicle low voltage system on demand power supply program configured to implement the steps of the vehicle low voltage system on demand power supply method as described above.
In addition, to achieve the above object, the present invention further provides a storage medium having a vehicle low-voltage system on-demand power supply program stored thereon, wherein the vehicle low-voltage system on-demand power supply program, when executed by a processor, implements the steps of the vehicle low-voltage system on-demand power supply method as described above.
The invention provides a method for supplying power to a vehicle low-voltage system on demand, which comprises the steps of receiving a starting-up instruction of a vehicle controller on a vehicle, and starting a first port according to the starting-up instruction; acquiring a low-voltage working requirement of a low-voltage module on the vehicle, and controlling the first port to supply power according to the low-voltage working requirement; receiving a working instruction of the vehicle upper-mounted controller, and starting a second port according to the working instruction; and acquiring the additional work requirement of the upper controller, and controlling the second port to supply power according to the additional work requirement of the upper controller.
In this way, only one set of low-voltage system can be used in the new energy automobile, two output ports in the direct-current high-low voltage bidirectional conversion controller are used for processing different voltage requirements on the automobile in parallel, the first output port is used for processing the power consumption requirement of the low-voltage module on the automobile, and the second output port is used for processing the additional power consumption requirement of the loading part on the automobile. Meanwhile, all electrical components of a matched chassis are not required to be switched to a higher and lower voltage driving system in the new energy whole vehicle enterprise, the whole vehicle static current consumption is low, and the energy conservation and the environmental protection are realized. A plurality of systems and the same parts are not required to be controlled in a new energy vehicle enterprise, only 1 standard state needs to be developed, control is facilitated, and platform, universalization and standardization popularization are facilitated.
Drawings
FIG. 1 is a schematic diagram of a configuration of a vehicle low-voltage system on-demand power supply device in a hardware operating environment according to an embodiment of the invention;
FIG. 2 is a schematic flow chart of a first embodiment of the on-demand power supply method for the low-voltage system of the vehicle of the present invention;
FIG. 3 is a schematic flow chart of a second embodiment of the on-demand power supply method for the low-voltage system of the vehicle of the present invention;
FIG. 4 is a flowchart illustrating an overall process of an embodiment of the on-demand power supply method for the low-voltage system of the vehicle according to the invention;
fig. 5 is a block diagram showing the structure of the first embodiment of the on-demand power supply apparatus for a low-voltage system of a vehicle according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle low-voltage system on-demand power supply device in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the vehicle low-voltage system on-demand power supply apparatus may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the on-demand power supply for a low-voltage system of a vehicle, and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a storage medium, may include therein an operating system, a network communication module, a user interface module, and a vehicle low voltage system on-demand power supply program.
In the vehicle low-voltage system on-demand power supply apparatus shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 of the vehicle low-voltage system on-demand power supply device of the present invention may be provided in the vehicle low-voltage system on-demand power supply device, which calls the vehicle low-voltage system on-demand power supply program stored in the memory 1005 through the processor 1001 and executes the vehicle low-voltage system on-demand power supply method provided by the embodiment of the present invention.
The embodiment of the invention provides a method for supplying power to a vehicle low-voltage system on demand, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the method for supplying power to the vehicle low-voltage system on demand.
In this embodiment, the on-demand power supply method for the vehicle low-voltage system includes the following steps:
step S10, receiving a starting-up instruction of a vehicle controller on a vehicle, and starting a first port according to the starting-up instruction;
it should be noted that the execution subject of the present embodiment is a direct-current high-low voltage bidirectional conversion controller in a vehicle, and the direct-current high-low voltage bidirectional conversion controller (DC-DC converter) may change one voltage value in a direct-current circuit to another voltage value and maintain a stable output of the voltage.
It should be understood that the Vehicle Control Unit (VCU) is a central control unit of the new energy Vehicle, and is used for taking charge of normal running, braking energy feedback, energy management of a Vehicle engine and a power battery, network management, fault diagnosis and processing, Vehicle state monitoring and the like of the Vehicle, so as to ensure that the Vehicle works normally and stably under a better dynamic property, higher economical efficiency and reliability state.
In the specific implementation, two output ports are arranged in a direct-current high-low voltage bidirectional conversion controller in a low-voltage driving system of a vehicle, and after the direct-current high-low voltage bidirectional conversion controller receives a starting-up instruction sent by a vehicle control unit on the vehicle, a first output port in the direct-current high-low voltage bidirectional conversion controller performs voltage conversion according to the power utilization requirement of a low-voltage working module on the vehicle to supply power to the direct-current high-low voltage bidirectional conversion controller; after the direct-current high-low voltage bidirectional conversion controller receives a working instruction sent by an upper controller on the vehicle, a second output port in the direct-current high-low voltage bidirectional conversion controller performs voltage conversion according to the power utilization requirement of an upper part on the vehicle to supply power to the upper part. In the embodiment, the vehicle chassis system is built by using the standard voltage 12V, and other voltages can be used for building the vehicle chassis system, which is not limited in the embodiment.
It should be understood that the power-on command is a power-on request sent by the vehicle control unit to the first port of the dc high-low voltage bidirectional conversion controller through the CAN communication network.
It will be appreciated that the first port is one of the output ports of the dc high-low voltage bidirectional converter controller, and in this embodiment is used to power a vehicle chassis low voltage module.
Further, step S10 includes: the method comprises the steps of receiving a starting-up instruction of a vehicle controller on a vehicle, monitoring a first port according to the starting-up instruction, and sending temperature information of the first port to the vehicle controller so that the vehicle controller can judge whether the temperature information of the first port is in a normal range, and if the temperature information of the first port is in the normal range, feeding back a normal detection result of the first port.
And starting the first port according to the detection result.
It should be noted that the temperature information of the first port refers to a current temperature value of the first port.
It should be understood that, when the dc high-low voltage bidirectional converter controller monitors the temperature information of the first port in real time, the first port can be normally started only when the temperature value of the first port is within a normal range.
In this embodiment, a normal range of the temperature value of the first port is between 50 ℃ and 60 ℃, and if a detection result of the temperature value of the first port is less than 50 ℃ or greater than 60 ℃, the first port is not started; and if the detection result of the temperature value of the first port is between 50 and 60 ℃, the first port can be normally started. Whether the first port is started or not is determined by detecting the temperature information of the first port, so that the safety of the vehicle is ensured, and the vehicle can run in a normal state. It should be noted that the normal temperature of the first port may also be in other ranges, which is not limited in this embodiment.
And step S20, acquiring a low-voltage working requirement of a low-voltage module on the vehicle, and controlling the first port to supply power according to the low-voltage working requirement.
It should be noted that the vehicle upper and lower voltage module is composed of an ignition switch and a bonding module on the vehicle, a vehicle body control module, a lighting system, an air conditioning control system and other modules, which are not limited in this embodiment.
It should be understood that the low voltage operating requirement is the voltage and power required for the low voltage module to operate properly.
It can be understood that the dc high-low voltage bidirectional conversion controller controls the first output port to convert the battery voltage of the vehicle into the voltage required by the low voltage module by acquiring the low voltage operation requirement of the low voltage module on the vehicle, and then outputs the voltage to the low voltage module for power supply.
And step S30, receiving a working instruction of the vehicle on-board controller, and starting the second port according to the working instruction.
It should be noted that, the TPM (TPM) on the vehicle is a controller of a retrofit part with a dedicated function, which is modified on different dedicated vehicles. The upper-mounted part may also be different according to the function of the vehicle.
It should be understood that the working command is a demand command sent by the vehicle onboard controller to the second port of the dc high-low voltage bidirectional converter controller through the CAN communication network.
It should be understood that the second port is another output port of the dc high-low voltage bidirectional converter controller, which is used to supply power to the onboard controller of the vehicle in this embodiment.
And step S40, acquiring the additional work requirement of the upper controller, and controlling the second port to supply power according to the additional work requirement of the upper controller.
It should be noted that the additional operation requirement refers to the voltage and power required by the onboard controller to operate the onboard portion of the vehicle normally.
It can be understood that the direct-current high-voltage and low-voltage bidirectional conversion controller controls the second output port to convert the voltage of the storage battery of the vehicle into the voltage required by the upper-mounted part and then output the voltage to the upper-mounted controller for supplying power by acquiring the additional working requirement of the upper-mounted controller on the vehicle.
In the embodiment, a starting-up instruction of a vehicle controller on a vehicle is received, and a first port is started according to the starting-up instruction; acquiring a low-voltage working requirement of a low-voltage module on the vehicle, and controlling the first port to supply power according to the low-voltage working requirement; receiving a working instruction of the vehicle upper-mounted controller, and starting a second port according to the working instruction; and acquiring the additional work requirement of the upper controller, and controlling the second port to supply power according to the additional work requirement of the upper controller.
In this way, only one set of low-voltage system can be used in the new energy automobile, two output ports in the direct-current high-low voltage bidirectional conversion controller are used for processing different voltage requirements on the automobile in parallel, the first output port is used for processing the power consumption requirement of the low-voltage module on the automobile, and the second output port is used for processing the additional power consumption requirement of the loading part on the automobile. Meanwhile, all electrical components of a matched chassis are not required to be switched to a higher and lower voltage driving system in the new energy whole vehicle enterprise, the whole vehicle static current consumption is low, and the energy conservation and the environmental protection are realized. A plurality of systems and the same parts are not required to be controlled in a new energy vehicle enterprise, only 1 standard state needs to be developed, control is facilitated, and platform, universalization and standardization popularization are facilitated.
Referring to fig. 3, fig. 3 is a schematic flow chart of a second embodiment of the on-demand power supply method for the low-voltage system of the vehicle according to the invention.
Based on the first embodiment, before the step S20, the on-demand power supply method for a low-voltage system of a vehicle according to the embodiment further includes:
step S201, sending a starting state of the first port to the vehicle controller, so that the vehicle controller feeds back a first required voltage message and a first required power message of the low-voltage module according to the starting state.
It should be noted that the activated state of the first port refers to a state in which the first port is already opened.
It should be understood that the first demand voltage message and the first demand power message of the low voltage module refer to the message content of a CAN signal matrix defined in a CAN communication network of the vehicle (the definition of the CAN signal matrix is shown in table 1), and the voltage and power demand required when the low voltage module normally works is converted into the first demand voltage message and the first demand power message.
It CAN be understood that the vehicle administrator defines the content of the CAN signal matrix, and the specific definition manner and content are not limited in this embodiment, and the corresponding relationship between the ID number and the signal name, the start bit, the length, the signal value, the sending node and the receiving node CAN be obtained according to the signal definition table, so as to obtain the data content according to the obtained ID information.
TABLE 1
Step S202, receiving a first required voltage message and a first required power message fed back by the vehicle control unit.
It should be noted that the direct current high-low voltage bidirectional conversion controller of the vehicle receives the first required voltage message and the first required power message fed back by the vehicle control unit through the CAN communication network.
Step S203, obtaining a low-voltage working requirement of the low-voltage module according to the first required voltage message and the first required power message.
It can be understood that the dc high-low voltage bidirectional conversion controller receives the message of the required voltage and the required power fed back by the vehicle control unit, identifies the low-voltage operation requirement of the low-voltage module, and ensures the accuracy of the operation of the first port during voltage conversion.
Further, after step S20, the method further includes:
receiving the working state of the first port fed back by the vehicle control unit, and judging whether the working state of the first port is consistent with the low-voltage working demand state; if the working state of the first port is inconsistent with the low-voltage working demand state, a first fault code is sent to the vehicle control unit, so that the vehicle control unit starts a self-protection mode.
It should be noted that the operating state of the first port refers to a value of the output voltage and a value of the output power of the first port.
It should be understood that, the dc high-low voltage bidirectional converter controller determines whether the voltage value and the power value are consistent with those required by the low-voltage module when the vehicle control unit normally works by receiving the first port output voltage value and the output power value fed back by the vehicle control unit.
It should be noted that the first fault code refers to code information reflected when the operating state of the first port is inconsistent with the low-voltage operating demand state.
It can be understood that, the dc high-low voltage bidirectional converter controller checks the operating state of the first port by receiving the output voltage value and the output power value of the first port fed back by the vehicle controller, and determines whether to enable the vehicle controller to start the self-protection mode, so as to not only further ensure the accuracy of the operation of the first port when supplying power to the low-voltage module, but also ensure the safety of the vehicle operation.
Further, before step S40, the method further includes:
sending the starting state of the second port to the upper controller, so that the upper controller feeds back a second required voltage message and a second required power message of the upper controller according to the starting state; receiving a second required voltage message and a second required power message fed back by the upper controller; and obtaining the additional work requirement of the upper-mounted controller according to the second required voltage message and the second required power message.
It should be noted that the activation state of the second port refers to a state in which the second port is already opened.
It should be understood that the second voltage demand message and the second power demand message of the onboard controller refer to the message content of a CAN signal matrix defined in a CAN communication network of the vehicle, and the voltage and power demands required by the onboard controller to enable the onboard part of the vehicle to work normally are converted into the second voltage demand message and the second power demand message.
It should be noted that the direct current high-low voltage bidirectional conversion controller of the vehicle receives the second required voltage message and the second required power message fed back by the upper-mounted controller through the CAN communication network.
It can be understood that the dc high-low voltage bidirectional conversion controller receives the messages of the required voltage and the required power fed back by the upper controller, identifies the additional working requirement of the upper controller, and ensures the working accuracy of the second port during voltage conversion.
Further, after step S40, the method further includes:
receiving the working state of the second port fed back by the upper controller, and judging whether the working state of the second port is consistent with the additional working demand state; and if the working state of the second port is inconsistent with the additional working demand state, sending a second fault code to the upper controller so that the upper controller starts a self-protection mode.
It should be noted that: it should be noted that the operating state of the second port refers to a value of the output voltage and a value of the output power of the first port.
It can be understood that, the dc high-low voltage bidirectional converter controller determines whether the voltage value and the power value required by the upper-mounted controller to enable the vehicle upper-mounted portion to operate normally are consistent by receiving the second port output voltage value and the output power value fed back by the upper-mounted controller.
It should be noted that the second fault code refers to code information reflected when the operating status of the second port is inconsistent with the additional operating requirement status.
It can be understood that, the dc high-low voltage bidirectional converter controller checks the operating state of the second port by receiving the output voltage value and the output power value of the second port fed back by the upper controller, and determines whether to enable the upper controller to start the self-protection mode, so as to not only further ensure the accuracy of the operation of the first port when supplying power to the upper controller, but also ensure the safety of the vehicle operation.
Further, before step S30, the method further includes: judging whether an activation instruction of the vehicle control unit is received or not; and if the activation instruction of the vehicle control unit is received, activating a second port.
It should be noted that the activation instruction of the vehicle control unit refers to a power-on instruction sent by the vehicle control unit and received before the second port starts to operate.
It can be understood that, before starting the second port, it is determined whether the second port has been powered on and activated, so as to ensure the normal output operation of the second port.
In this embodiment, the starting state of the first port is sent to the vehicle controller, so that the vehicle controller feeds back a first required voltage message and a first required power message of the low-voltage module according to the starting state; receiving a first required voltage message and a first required power message fed back by the vehicle control unit; and obtaining the low-voltage working requirement of the low-voltage module according to the first demand voltage message and the first demand power message. Receiving the working state of the first port fed back by the vehicle control unit, and judging whether the working state of the first port is consistent with the low-voltage working demand state; if the working state of the first port is inconsistent with the low-voltage working demand state, a first fault code is sent to the vehicle control unit, so that the vehicle control unit starts a self-protection mode. By the mode, the accuracy of the output port of the direct-current high-low voltage bidirectional converter during voltage conversion work can be guaranteed, whether the working state of the output port is consistent with the working requirement or not is checked in real time, whether the controller is enabled to start a self-protection mode or not is selected, and the safety of a vehicle during running is guaranteed.
In addition, referring to fig. 5, an embodiment of the present invention further provides an apparatus for on-demand power supply of a vehicle low-voltage system, where the apparatus for on-demand power supply of a vehicle low-voltage system includes:
the starting module 10 is configured to receive a starting instruction of a vehicle controller on a vehicle, and start a first port according to the starting instruction;
and the power supply module 20 is used for acquiring the low-voltage working requirement of the low-voltage module on the vehicle and controlling the first port to supply power according to the low-voltage working requirement.
The starting module 10 is further configured to receive a working instruction of the onboard controller of the vehicle, and start the second port according to the working instruction.
The power supply module 20 is further configured to obtain an additional work requirement of the upper controller, and control the second port to supply power according to the additional work requirement of the upper controller.
In this way, only one set of low-voltage system can be used in the new energy automobile, two output ports in the direct-current high-low voltage bidirectional conversion controller are used for processing different voltage requirements on the automobile in parallel, the first output port is used for processing the power consumption requirement of the low-voltage module on the automobile, and the second output port is used for processing the additional power consumption requirement of the loading part on the automobile. Meanwhile, all electrical components of a matched chassis are not required to be switched to a higher and lower voltage driving system in the new energy whole vehicle enterprise, the whole vehicle static current consumption is low, and the energy conservation and the environmental protection are realized. A plurality of systems and the same parts are not required to be controlled in a new energy vehicle enterprise, only 1 standard state needs to be developed, control is facilitated, and platform, universalization and standardization popularization are facilitated.
In an embodiment, the power supply module 20 is further configured to send a start state of the first port to the vehicle control unit, so that the vehicle control unit feeds back a first required voltage message and a first required power message of the low-voltage module according to the start state;
receiving a first required voltage message and a first required power message fed back by the vehicle control unit;
and obtaining the low-voltage working requirement of the low-voltage module according to the first demand voltage message and the first demand power message.
In an embodiment, the power supply module 20 is further configured to receive the working state of the first port fed back by the vehicle control unit, and determine whether the working state of the first port is consistent with the low-voltage working demand state;
if the working state of the first port is inconsistent with the low-voltage working demand state, a first fault code is sent to the vehicle control unit, so that the vehicle control unit starts a self-protection mode.
In an embodiment, the power supply module 20 is further configured to send a starting state of the second port to the upper controller, so that the upper controller feeds back a second required voltage packet and a second required power packet of the upper controller according to the starting state;
receiving a second required voltage message and a second required power message fed back by the upper controller;
and obtaining the additional work requirement of the upper-mounted controller according to the second required voltage message and the second required power message.
In an embodiment, the power supply module 20 is further configured to receive the working state of the second port fed back by the upper-mounted controller, and determine whether the working state of the second port is consistent with the additional working demand state;
and if the working state of the second port is inconsistent with the additional working demand state, sending a second fault code to the upper controller so that the upper controller starts a self-protection mode.
In an embodiment, the starting module 10 is further configured to determine whether an activation instruction of the vehicle control unit is received;
and if the activation instruction of the vehicle control unit is received, activating a second port.
In an embodiment, the starting module 10 is further configured to receive a start-up instruction of a vehicle control unit on a vehicle, monitor a first port according to the start-up instruction, and send temperature information of the first port to the vehicle control unit, so that the vehicle control unit determines whether the temperature information of the first port is within a normal range, and if the temperature information of the first port is within the normal range, feeds back a normal detection result of the first port;
and starting the first port according to the detection result.
Furthermore, an embodiment of the present invention further provides a storage medium, where a vehicle low-voltage system on-demand power supply program is stored on the storage medium, and the vehicle low-voltage system on-demand power supply program, when executed by a processor, implements the steps of the vehicle low-voltage system on-demand power supply method as described above.
Since the storage medium adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
In addition, the technical details that are not described in detail in this embodiment can be referred to the on-demand power supply method of the vehicle low-voltage system provided by any embodiment of the present invention, and are not described herein again.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g. Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g. a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A vehicle low-voltage system on-demand power supply method is characterized by comprising the following steps:
receiving a starting-up instruction of a vehicle controller on a vehicle, and starting a first port according to the starting-up instruction;
acquiring a low-voltage working requirement of a low-voltage module on the vehicle, and controlling the first port to supply power according to the low-voltage working requirement;
receiving a working instruction of the vehicle upper-mounted controller, and starting a second port according to the working instruction;
and acquiring the additional work requirement of the upper controller, and controlling the second port to supply power according to the additional work requirement of the upper controller.
2. The method of claim 1, wherein prior to obtaining a low voltage operating demand of a low voltage module on the vehicle and controlling the first port to provide power according to the low voltage operating demand, further comprising:
sending the starting state of the first port to the vehicle control unit, so that the vehicle control unit feeds back a first required voltage message and a first required power message of the low-voltage module according to the starting state;
receiving a first required voltage message and a first required power message fed back by the vehicle control unit;
and obtaining the low-voltage working requirement of the low-voltage module according to the first demand voltage message and the first demand power message.
3. The method of claim 1, wherein after obtaining a low voltage operating demand of a low voltage module on the vehicle and controlling the first port to supply power according to the low voltage operating demand, further comprising:
receiving the working state of the first port fed back by the vehicle control unit, and judging whether the working state of the first port is consistent with the low-voltage working demand state;
if the working state of the first port is inconsistent with the low-voltage working demand state, a first fault code is sent to the vehicle control unit, so that the vehicle control unit starts a self-protection mode.
4. The method of claim 1, wherein before obtaining the additional operational requirement of the on-board controller and controlling the second port to supply power according to the additional operational requirement of the on-board controller, the method further comprises:
sending the starting state of the second port to the upper controller, so that the upper controller feeds back a second required voltage message and a second required power message of the upper controller according to the starting state;
receiving a second required voltage message and a second required power message fed back by the upper controller;
and obtaining the additional work requirement of the upper-mounted controller according to the second required voltage message and the second required power message.
5. The method of claim 1, wherein after obtaining the additional operational requirement of the on-board controller and controlling the second port to supply power according to the additional operational requirement of the on-board controller, the method further comprises:
receiving the working state of the second port fed back by the upper controller, and judging whether the working state of the second port is consistent with the additional working demand state;
and if the working state of the second port is inconsistent with the additional working demand state, sending a second fault code to the upper controller so that the upper controller starts a self-protection mode.
6. The method of any of claims 1-5, wherein the receiving an operating command for the onboard vehicle controller, prior to activating the second port based on the operating command, further comprises:
judging whether an activation instruction of the vehicle control unit is received or not;
and if the activation instruction of the vehicle control unit is received, activating a second port.
7. The method according to any one of claims 1 to 5, wherein the receiving a boot instruction of a vehicle control unit on a vehicle, and starting the first port according to the boot instruction comprises:
receiving a starting-up instruction of a vehicle controller on a vehicle, monitoring a first port according to the starting-up instruction, and sending temperature information of the first port to the vehicle controller so that the vehicle controller judges whether the temperature information of the first port is in a normal range, and if the temperature information of the first port is in the normal range, feeding back a normal detection result of the first port;
and starting the first port according to the detection result.
8. A vehicle low voltage system on-demand power supply apparatus, characterized in that the vehicle low voltage system on-demand power supply apparatus comprises:
a starting module: the system comprises a first port, a second port and a power-on interface, wherein the first port is used for receiving a power-on instruction of a vehicle controller on a vehicle and starting the first port according to the power-on instruction;
a power supply module: the system comprises a first port, a second port, a first control module and a second control module, wherein the first port is used for acquiring the low-voltage working requirement of a low-voltage module on the vehicle and controlling the first port to supply power according to the low-voltage working requirement;
the starting module is used for: the system is also used for receiving a working instruction of the on-board controller of the vehicle and starting the second port according to the working instruction;
the power supply module: and the second port is controlled to supply power according to the additional work requirement of the upper controller.
9. An on-demand power supply apparatus for a low voltage system of a vehicle, the apparatus comprising: a memory, a processor and a vehicle low voltage system on demand power supply program stored on the memory and executable on the processor, the vehicle low voltage system on demand power supply program being configured to implement the steps of the vehicle low voltage system on demand power supply method as claimed in any one of claims 1 to 7.
10. A storage medium, characterized in that it stores thereon a vehicle low-voltage system on-demand power supply program, which when executed by a processor implements the steps of the vehicle low-voltage system on-demand power supply method according to any one of claims 1 to 7.
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| CN202011425084.5A CN112406539A (en) | 2020-12-07 | 2020-12-07 | Method, device and equipment for supplying power to vehicle low-voltage system on demand and storage medium |
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