CN113071437B - Power management method of intelligent host - Google Patents
Power management method of intelligent host Download PDFInfo
- Publication number
- CN113071437B CN113071437B CN202110389030.6A CN202110389030A CN113071437B CN 113071437 B CN113071437 B CN 113071437B CN 202110389030 A CN202110389030 A CN 202110389030A CN 113071437 B CN113071437 B CN 113071437B
- Authority
- CN
- China
- Prior art keywords
- state
- mode
- central control
- host
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007726 management method Methods 0.000 title claims abstract description 37
- 230000007958 sleep Effects 0.000 claims description 55
- 238000001514 detection method Methods 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 26
- 230000008569 process Effects 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000008667 sleep stage Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000000875 corresponding effect Effects 0.000 description 21
- 230000008859 change Effects 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 208000035139 partial with pericentral spikes epilepsy Diseases 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
-
- 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
-
- 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
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
-
- 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
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Sources (AREA)
Abstract
The invention provides a power supply management method of an intelligent host, which comprises the steps of establishing a voltage state by a voltage state machine of a host power supply, establishing an operation mode by an instrument and/or a central control state machine; the host system monitors the power supply voltage of the power supply to acquire the voltage state of the current host power supply; and managing the running mode of the instrument and/or the central control according to the obtained voltage state of the host power supply and the monitored supporting signal. The power supply voltage for supplying power to the host is divided into a plurality of different voltage states, and the operation mode, the central control operation mode, the instrument operation mode and the switching among the modes of the host system are defined according to the different voltage states. The intelligent host computer has the advantages that the operation is simple, the operation mode of each module is controlled in detail, and the effects of quick start and energy conservation of the intelligent host computer can be finally achieved.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a power management method of an intelligent host.
Background
With the continuous progress of scientific technology, automobiles develop towards the aspects of intellectualization, automation and no humanization, and at the present stage, a low-power-consumption working mode is still a problem which needs to be considered when vehicle-mounted electronic products are designed, because the problem not only determines whether the products can be normally loaded, but also has certain influence on the low power consumption of the whole automobiles. When an automobile engine is in a flameout state, the electric units on the automobile body do not stop working, but rather, the electric units continue to work under the driving of an automobile battery, however, the electric quantity capable of being stored by the battery is limited, and the automobile electric units need to be guaranteed to work for as long as possible under the limited energy supply. In the prior art, when the vehicle is powered ON, a key of the whole vehicle is turned to an ON gear, a relay for supplying power to the vehicle controller is closed, the vehicle controller is powered ON, and starting preparation is made. When the power is OFF, the key of the whole vehicle is turned to the OFF gear, the relay is disconnected, and the whole vehicle controller is powered OFF. For the judgment of the gear, a high level and a low level are generally adopted for judgment at present, but only two conditions, namely power-on operation and power-off operation, can be judged. However, for the power management of the vehicle-mounted intelligent host, since various device operation modes and operation states are involved, the control of the operation mode only according to the high-level mode and the low-level mode may cause excessive consumption of power consumption. In the prior art, a power management method for a single vehicle-mounted host is also provided, for example, patent CN102485525 a, which specifies an operation mode of a vehicle-mounted host system, but the operation mode is switched in a physical mode of an automobile, for example, the vehicle-mounted system is controlled to enter different states based on whether the automobile is started, but this mode is single, operation influence of a functional module caused by changes of other signals and an external power supply is ignored, and the saving effect is limited. In addition, the patent CN 102485524B adjusts the operation mode of the vehicle-mounted host according to the wake-up source state, but still ignores the influence caused by the change of the external power supply, and is not suitable for the existing management system of the intelligent host with multiple functional modules. On the other hand, the current vehicle-mounted host usually adopts an embedded system, such as: operating systems such as QNX and android need to read the system from hardware and then start the system when the operating systems are started, and the starting speed of the operating systems needs a long period of time, so that the user experience is influenced. Based on the defects in the prior art, the invention provides a power management method of an intelligent host, so as to accelerate the starting speed and save the energy consumption of a power supply battery.
Disclosure of Invention
Based on the defects in the prior art, the invention provides a power management method of an intelligent host, which comprises the following steps:
establishing a voltage state by a voltage state machine of a host power supply, and establishing an instrument and/or a central control state machine to establish an operation mode; the host system monitors the power supply voltage of the power supply to acquire the voltage state of the current host power supply; and managing the running mode of the instrument and/or the central control according to the obtained voltage state of the host power supply and the monitored supporting signal.
A power management method of a smart host, further, the voltage status comprises: one or more of a non-working state, an instrument-central control state and an overvoltage state;
u < U1 or voltage U > U4, and the corresponding voltage state is a non-working state;
u1< U < U2, and the corresponding voltage state is an instrument state;
u2 is more than U and less than U3, and the corresponding voltage state is an instrument-central control state;
u3< U < U4, and the corresponding voltage state is an overvoltage state;
the U is a power supply voltage of the host power supply in a voltage state, and the U1, the U2, the U3 and the U4 are critical voltages which are preset to be converted in different voltage states.
The power supply management method of the intellectual host computer, further, the acquiescence state of the voltage state of the power supply of the host computer is a non-working state, when the voltage state of the power supply of the host computer is in the non-working state, the host computer system should be in the dormant state, not allow to start;
when the voltage state of the host power supply is in an instrument state, the instrument normally runs, and the screen is turned off and muted after the pre-starting is finished;
when the voltage state of the host power supply is in an instrument-central control state, the instrument and the central control normally operate;
when the voltage state of the host power supply is in an overvoltage state, the instrument is shut down and dormant, the central control screen is shut down and muted, and the host system runs in the background.
A power management method of an intelligent host computer, further, the initial state of the host computer system is the state of not powering on, when the host computer system inserts the power or the host computer system wakes up from the dormant state, the host computer system will detect the wake-up signal, carry out the corresponding operation and enter different operational modes according to the effectiveness of the wake-up signal;
if the wake-up signal is effective, executing a power-on process, and entering a host system working mode after the operation is finished;
if the instrument and the central control are detected to enter the sleep mode in the working mode of the host system, the host system executes the operation of the sleep stage and enters the sleep mode of the host system.
A power management method of an intelligent host computer, further, the running mode of the instrument includes starting detection, dormant mode, partial working mode and full working mode; the starting detection is defined as the initial state of the instrument, the instrument continuously detects the awakening source and executes a corresponding operation mode according to the state of the awakening source;
a sleep mode: the instrument is in a dormant state, monitors whether KL15 and CAN Wakeup signals are effective or not, and determines whether state switching is carried out or not according to the KL15 and CAN Wakeup signals;
and (3) a full working mode: the instrument performs full-function display and responds to all relevant signals;
partial working modes are as follows: the instrument closes the display of the dial plate and only displays and responds to the preset CAN signal;
in the sleep mode, when the wake-up source is KL15 ON or CAN wakeup signal, the meter is switched from the sleep mode to start detection.
A power supply management method of an intelligent host computer further comprises the steps that when an instrument is in a partial working mode, when the voltage state of a host computer power supply is one of a non-working state and an overvoltage state, the partial working mode is converted into starting detection;
when the voltage state of the host power supply is one of the meter state and the meter-central control state and KL15 is ON, the partial working mode is converted into the full working mode.
A power management method of an intelligent host computer further comprises the following steps that when a meter is in a full working mode:
when the voltage state of the host power supply is one of a non-working state and an overvoltage state, converting a full working mode into starting detection; (even if KL15 ON or CAN BUS Active is Active)
When the voltage state of the host power supply is one of the non-working state and the overvoltage state and KL15 is OFF, the full working mode is converted into the partial working mode.
A power management method of an intelligent host computer, further, a central control operation mode comprises: starting any one or more of detection, a sleep mode, a first time length mode, a working mode, a second time length mode and a screen-off mute mode;
the preset time of the first duration mode is less than the preset time of the second duration mode;
the initial state is start detection, and the central control detects the awakening source and executes a corresponding operation mode according to the state of the awakening source.
The power supply management method of the intelligent host computer further comprises the steps that under the condition of starting detection, when the central control detects ACC OFF, the unlocking of a vehicle body and CAN Bus idle, or when the voltage state of the host computer power supply is in an overvoltage state or a non-working state and the CAN Bus idle, the central control is converted into a sleep mode from the starting detection;
under the starting detection, when the voltage state of the main machine power supply is in an instrument state or an instrument-central control state and the central control detects a vehicle body unlocking signal, entering a first time-length mode;
under the condition of starting detection, when the voltage state of a host power supply is in an instrument state and the central control detects ACC ON, entering a screen-off mute mode; when the voltage state of the host power supply is in an instrument-central control state and the central control detects ACC ON, the working mode is entered.
The power supply management method of the intelligent host computer further comprises the step that the central control computer is in a first time length mode, when the voltage state of the power supply of the host computer is in a non-working state and the central control computer detects the CAN Bus idle, the central control computer detects the CAN Bus idle and a vehicle locking signal, and the central control computer detects that the existence time of the CAN Bus idle is longer than preset first time, the central control computer is converted into a sleep mode from the first time length mode.
The power supply management method of the intelligent host computer further comprises the steps that when the central control is in a second time length mode, when the voltage state of the host computer power supply is in a non-working state and the central control detects CAN Bus idle and ACC OFF, or the central control detects CAN Bus idle and a vehicle locking signal, or the central control detects that the CAN Bus idle exists for a time longer than a second preset time, the central control is converted into a dormant mode from the second time length mode;
and the central control is in the second duration mode, and when the central control detects ACC ON, the central control enters the working mode.
The power management method of the intelligent host computer, further, the central control is under the working pattern, when detecting ACC OFF, enter the second duration mode;
when the voltage state of the host power supply is in one of a non-working state, an overvoltage state or an instrument state, and the central control detects ACC ON, the central control enters a screen-off mute mode.
Has the beneficial effects that:
1. the technical scheme provided by the invention can be applied to a power supply management method of an intelligent host configured by an MCU and an SOC, and the power supply voltage for supplying power to the host is divided into a plurality of different voltage states, and the operation mode of a host system, a central control operation mode and an instrument operation mode are defined according to the different voltage states. Compared with the control mode of independently depending on the opening or relationship of the ACC to carry out the single operation mode of the system in the prior art, the control method is simple to operate, and the operation mode of each module is controlled in detail, so that the effects of quick starting and energy saving of the instrument and the central control in the intelligent host can be finally achieved.
2. In the mode switching process, the jump-preventing voltage is set, the voltage state is prevented from being repeatedly switched at the adjacent critical point, the damage of components and parts caused by repeated change is prevented, and meanwhile, the energy consumption waste caused by frequent mode switching can be avoided.
3. According to the method, a central control unit and an instrument are driven by an SOC chip, the central control unit and the instrument are divided into independent operation modes instead of a whole, each stage in the operation mode of the central control unit and each stage in the operation mode of the instrument are respectively defined, and corresponding mode switching is made according to the voltage state of a host power supply. On one hand, the purpose of quick start can be achieved, and the start time is saved. On the other hand, the effect of saving energy consumption can be achieved. Compared with the existing energy-saving control, the strategy provided by the invention can achieve better power consumption.
Drawings
The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention.
Fig. 1 is a schematic structural diagram of an intelligent host according to an embodiment of the present invention.
Fig. 2 is a voltage status division diagram of a power supply of the smart host according to an embodiment of the invention.
Fig. 3 is a diagram illustrating specific values of voltage state division of a power supply of an intelligent host according to an embodiment of the present invention.
Fig. 4 is a schematic diagram illustrating a conversion of an operating mode condition of a meter in the smart host according to an embodiment of the present invention.
Fig. 5 is a schematic diagram illustrating a condition conversion of a central control operation mode in the smart host according to an embodiment of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects, and effects herein, embodiments of the present invention will now be described with reference to the accompanying drawings, in which like reference numerals refer to like parts throughout. For the sake of simplicity, the drawings are schematic representations of relevant parts of the invention and are not intended to represent actual structures as products. In addition, for simplicity and clarity of understanding, only one of the components having the same structure or function is schematically illustrated or labeled in some of the drawings.
As for the control system, the functional module, application program (APP), is well known to those skilled in the art, and may take any suitable form, either hardware or software, and may be a plurality of functional modules arranged discretely, or a plurality of functional units integrated into one piece of hardware. In its simplest form, the control system may be a controller, such as a combinational logic controller, a micro-programmed controller, or the like, so long as the operations described herein are enabled. Of course, the control system may also be integrated as a different module into one physical device without departing from the basic principle and scope of the invention.
The term "connected" in the present invention may include direct connection, indirect connection, communication connection, and electrical connection, unless otherwise specified.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, values, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, values, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items
It should be understood that the term "vehicle" or "vehicular" or other similar terms as used herein generally includes motor vehicles such as passenger automobiles including Sport Utility Vehicles (SUVs), buses, trucks, various commercial vehicles, watercraft including a variety of boats, ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., fuels derived from non-petroleum sources). As referred to herein, a hybrid vehicle is a vehicle having two or more power sources, such as both gasoline-powered and electric-powered vehicles.
Further, the controller of the present disclosure may be embodied as a non-transitory computer readable medium on a computer readable medium containing executable program instructions executed by a processor, controller, or the like. Examples of computer readable media include, but are not limited to, ROM, RAM, compact Disc (CD) -ROM, magnetic tape, floppy disk, flash drive, smart card, and optical data storage device. The computer readable recording medium CAN also be distributed over network coupled computer systems so that the computer readable medium is stored and executed in a distributed fashion, such as by a telematics server or Controller Area Network (CAN).
This embodiment provides a vehicle-mounted intelligent host computer, as shown in fig. 1, specifically includes: the MCU, the SOC and the MCU are connected with the SOC. Specifically, the MCU is connected with the SOC through an IO interface, wherein the MCU is connected to a power line through the IO to supply power to the SOC, and the MCU is connected with a signal line through the IO interface to communicate with the SOC;
specifically, the SOC includes at least: the central control module is connected with the central control screen through an IO interface and outputs signals to the central control screen for display;
the instrument module is connected with the instrument screen through an IO interface and outputs signals to the instrument screen for display;
the central control module is used for controlling the automobile body of the automobile and outputting the display state to a central control screen for displaying, such as windows, doors, navigation, a vehicle-mounted entertainment system, an air conditioner and the like;
the instrument module is used for detecting a sensor installed on the automobile and outputting the state of the sensor to an instrument screen for displaying. The sensors are as follows: the vehicle speed odometer, the tachometer, the oil pressure gauge, the water temperature gauge, the fuel gauge, the charging gauge, the indicator light or the alarm light transmits signals to an instrument panel for display, such as a coolant liquid level alarm light, a fuel quantity indicator light, a cleaner liquid level indicator light, a charging indicator light, a far and near light variable light indicator light, a transmission gear indicator light, a brake anti-lock braking system (ABS) indicator light, a driving force control indicator light, an air bag safety (SRS) alarm light and the like for display.
The MCU is provided with an ADC (Analog-to-Digital Converter), is connected with a power supply for supplying power to the vehicle-mounted intelligent host through the ADC, and is connected with the ACC, the KL15, the CAN WakeUP (CAN WakeUP signal) and the power supply through an IO interface for transmitting signals. If the MCU chip is properly selected, the quiescent current of the vehicle-mounted intelligent host can reach below 1 mA.
The MCU supplies power to the SOC, and the SOC supplies power to the central control screen and the instrument screen;
specifically, the instrument in the embodiment comprises an instrument module and an instrument screen, and the central control comprises a central control module and a central control screen;
specifically, this implementation does not limit the form of the IO interface, and the plurality of IO interfaces in the diagram may be integrated together or divided into more than two IOs, such as 3, 4 IOs, and 5 IOs, according to the routing of the circuit board, and each IO corresponds to power supply or data communication, etc. to implement different functions.
MCU is equipped with ADC (Analog-to-Digital Converter), and MCU is connected with the power supply who is used for supplying power for on-vehicle intelligent host computer through ADC, and MCU is connected with ACC, KL15, CAN WakeUP (CAN wake-up signal) and power supply through the IO interface for transmission signal.
Specifically, the form of the IO interface is not limited in this implementation, and the two IO interfaces in the illustration may be integrated together or divided into more than two IO, for example, 4 IO according to the routing of the circuit board, and each IO is correspondingly powered or data communicated to implement different functions.
The host system runs on the MCU, and the host system can be linux, QNX or android;
and the host system monitors the power supply signal of the power supply interface in real time, reads the voltage value through the ADC module, and converts the voltage value according to the circuit to obtain the actual power supply voltage value of the interface.
The instrument and the central control are driven by an SOC chip, the SOC chip runs with an operating system which can be linux, QNX, android and the like, and the SOC chip operating system controls the central control module and the instrument module so as to complete the control of the central control and the instrument, including power supply, screen display, signal input and output.
The host system realizes the management and control of the central control and the instrument through the SOC chip;
because the existing management mode of the vehicle-mounted host computer is usually directed at the power management of a single host computer and is not suitable for the power management method of the intelligent host computer, based on the intelligent host computer system, the invention is based on the power management method of the intelligent host computer system, and the method specifically comprises the following steps:
establishing a voltage state by a voltage state machine of a host power supply, and establishing an instrument and/or a central control state machine to establish an operation mode; the host system monitors the power supply voltage of the power supply to acquire the voltage state of the current host power supply; and managing the running mode of the instrument and/or the central control system according to the obtained voltage state of the host and the signal supporting monitoring.
Specifically, firstly, according to the voltage state of a power supply of the host, the working mode of each large component of the current intelligent host is determined according to the current monitoring signal;
for example: the power management of the intelligent host also needs to adjust the working state of the intelligent host in time according to the change of the external signal, how to turn on or off the screen, whether to wake up the host system, and the like, which are driven by the corresponding external signal, so that a module needs to be designed for signal monitoring. The signals to be monitored include, but are not limited to, ACC signals, KL15 signals, and CAN Wakeup signals, which are usually some external IO input signals for the MCU system, and the following will illustrate the variation and monitoring operation of the above signals by taking ACC signals as an example:
1) When the voltage of the host power supply is in the range of 6V-18.5V, the ACC signal is monitored and responded;
2) When the voltage of the host power supply is normal, if ACC is ON, allowing the system to turn ON a screen and start up the system for operation;
3) When the voltage of the host power supply is normal, if ACC is OFF, the screen is closed according to the operation of the user, and the system enters a standby state.
In the prior art, the operation mode of the system is judged according to a detected signal by judging whether the ACC is ignited or not and according to whether the ACC is ignited or extinguished. However, this method has a major disadvantage because only turning on or off the ACC indicates that the MCU in the on-board smart host detects the ACC signal or does not detect the ACC signal. However, the smart host itself consumes power, and the smart host is in an operating mode before the signal is detected. Therefore, in the prior art, the voltage of the vehicle-mounted intelligent host is not considered, and the default vehicle-mounted intelligent host is in an operating state for detecting an ACC signal when the ACC starts or shuts down. This results in excessive power consumption, shortening the life and service life of the power supply. In addition, whether the central control or the meter is used, signals related to the central control or the meter need to be read for interaction or display in the starting process, and the starting process takes a long time and the starting speed is slow.
In order to solve the defects in the prior art, the present embodiment provides a solution, referring to fig. 2 to fig. 4, to divide the host power Voltage into a plurality of different Voltage states (BV), specifically, into a plurality of different states according to different Voltage intervals:
a non-operational state (BV ABNORMAL), an instrument state (BV ICU stage), an instrument-center control state (BV ICU AND IVI STAGE), an Overvoltage state (BV Overvoltage).
Specifically, let U be the supply voltage of the host power supply, and U1, U2, U3, U4 preset the threshold voltage, where U1< U2 and U3 are-woven-U4
U < U1 or U > U4, and the corresponding voltage state is a working state;
u1< U < U2, and the corresponding voltage state is an instrument state;
u2< U < U3, and the corresponding voltage state is an instrument-central control state;
u3< U < U4, and the corresponding voltage state is an overvoltage state;
specifically, according to practical situations, the preferable host power supply voltage is divided into specific values: u1=6v, U2=9v, U3=16v, U4=18.5v
Specifically, the operation modes of the functional modules of the vehicle-mounted intelligent host are defined under different power supply voltages, and energy consumption is saved on the premise that the normal use function of the automobile is not influenced.
The default state of the voltage state of the host power supply is a non-working state, and when the host power supply is in the non-working state, the system is in a dormant state and is not allowed to be started;
when the voltage state of the host power supply is in an instrument state, the instrument normally runs, and the screen is turned off and muted after the pre-starting is finished;
when the voltage state of the host power supply is in an instrument-central control state, the instrument and the central control normally operate;
when the voltage state of the host power supply is in an overvoltage state, the instrument is shut down and dormant, the central control screen is shut down and muted, and the system runs in the background.
When the voltage is converted into the corresponding voltage state, the MCU timely adjusts the operation mode of the system, and if the voltage is converted into the instrument-central control state (BV ICU AND IVI STAGE), the instrument and the central control normally operate.
Because in this implementation, the operating mode is adjusted by switching the voltage state according to the state of the supply voltage of the host power supply, the voltage may be abnormal due to unstable or disturbed components in the power supply hardware, for example: if the voltage stays at the critical point of a certain voltage state, the adjacent critical states are switched back and forth, and the power consumption of the system is increased.
To prevent the voltage state from being repeatedly switched between adjacent critical points, for example: in order to solve the problem, in the present embodiment, in a given interval, when the voltage state is converted from the low voltage state to the high voltage state, the trip prevention voltage Δ U is increased, and when the host voltage reaches the sum of the critical voltage and the trip prevention voltage Δ U, the voltage state of the host power supply is converted from the low voltage state to the high voltage state.
For convenience of explanation, the meter state (low voltage state) and the meter-center control state (high voltage state), in this case, the voltage interval due to the meter state is lower than the meter-center control state. When the voltage state of the main machine power supply is converted into the instrument-central control state from the instrument state, the instrument state is converted into the instrument-central control state only when the power supply voltage of the main machine power supply is greater than or equal to U2 (critical voltage) plus delta U, otherwise, the state conversion is not carried out, wherein the delta U is greater than 0, and the preferred delta U is 0.2-0.5V.
When the voltage state of the host power supply transitions from a high voltage state to a low voltage state, for example:
the conditions under which the voltage state of the host power supply is converted from the meter-neutral state (high-voltage state) to the meter state (low-voltage state) are:
if the host voltage is less than or equal to U2 (threshold voltage), the conversion occurs immediately.
Specifically, the method comprises the following steps: the method comprises the steps of obtaining the current voltage state of a host, and converting the current voltage state of the host power supply from a low voltage state to a high voltage state matched with the voltage of the host power supply when the voltage of the host power supply is increased to be more than or equal to the sum of a critical voltage and an anti-jump voltage when the change trend of the power supply voltage of the host power supply towards the positive direction is detected;
when the voltage change trend of the host power supply is detected to change towards the negative direction, so that the voltage of the host power supply is less than or equal to the critical voltage, the current voltage state of the host power supply is immediately converted from the high voltage state to the low voltage state.
In summary, by setting the anti-jump voltage, the voltage state is prevented from being repeatedly switched between adjacent critical points, thereby saving energy.
Specifically, the operation mode of the system is set according to the voltage state, and the operation period of each mode is defined, so that unnecessary expenses are saved to the maximum extent, the energy consumption is reduced, and a better energy-saving effect is achieved.
Specifically, the operation mode of the system is set according to the voltage state, the operation period of each mode is defined, and the mutual switching between the operation modes of the central control or the instrument is executed according to the voltage state of the host power supply, so that the starting of the central control or the instrument can be accelerated, the starting time is maximized, and the experience is improved. The preset operation mode of the intelligent host comprises the following steps: the system comprises a system awakening mode, a system sleeping mode, a system working mode, a first sleeping mode and a second sleeping mode, wherein the system awakening mode is one or more of the system sleeping mode, the system working mode, the first sleeping mode and the second sleeping mode;
a system sleep mode: except that the MCU is in a low power consumption mode and few modules are in a charged state (such as CAN modules), other modules are in a mode of the system when the power is off. The system can enter a system sleep mode only if it is detected that both the meter and the central control are in sleep mode.
A system wake-up mode: the mode that the system is located when detecting limited wake-up signal after the electricity, MCU can detect signals such as automobile body ACC, KL15 and automobile body unblock this moment, can awaken whole product system when the signal is effective.
The system working mode is as follows: and the system is in a mode after the system power-on process is completed. In this mode, the instrument and the central control power management state machine can normally operate.
First sleep mode, second sleep mode: the state of the lower current path is processed before the system is in sleep.
Specifically, the flow operations of the process may differ when in different sleep modes.
And (3) power supply disconnection: the mode is entered by monitoring the battery connection state through the MCU, when the battery is disconnected, the MCU pin is triggered to be externally interrupted, and in an interruption processing function, the MCU carries out emergency power failure processing on the system.
Specifically, the processing considerations vary depending on the host architecture design.
When the system is powered on, the running mode is in a system awakening mode, the MCU detects preset awakening signals ACC and KL15 and the vehicle body is unlocked in the system awakening mode, and the whole product system is awakened when the signals are effective;
the wake-up signal comprises at least: one or more of signals in ACC, KL15, vehicle body unlocking;
if the signal is one of KL15 ON, ACC ON and vehicle body unlocking, switching from the system awakening mode to the system working mode; if the signals are KL15 OFF, ACC OFF and CAN BUS idle, the system awakening mode is switched to a first sleep mode;
waiting for preset time in the first sleep mode, powering off the system after the preset time is exceeded, entering a second sleep mode, and entering a system sleep mode after the second sleep mode waits for the power off;
when any one signal of CAN awakening, KL15 awakening and ACC awakening is detected in the system sleep mode, the system sleep mode is converted into the system awakening mode.
In the system working mode, the voltage state is in one of an instrument state, an instrument-central control state and an overvoltage state; in the system sleep mode, when the voltage state is the instrument state and/or the instrument-central control state, the operation mode is converted into a system wake-up mode from the system sleep state;
when the voltage state is in a non-working state, the working mode of the host system is converted into a system sleep mode.
In particular, the meters also need to be power managed, see fig. 4, in particular: the running modes of the instrument comprise a starting detection mode, a sleep mode, a partial working mode and a full working mode; the starting detection is defined as the initial state of the instrument, the instrument continuously detects the awakening source and executes a corresponding operation mode according to the state of the awakening source;
a sleep mode: the instrument is in a dormant state, monitors whether KL15 and CAN Wakeup signals are effective or not, and determines whether state switching is carried out or not according to the KL15 and CAN Wakeup signals;
and (3) a full working mode: the instrument performs full-function display and responds to all relevant signals;
partial working modes are as follows: the instrument closes the display of the dial plate and only displays and responds to the preset CAN signal;
in the sleep mode, when the wake-up source is KL15 OFF or CAN wakeup signal, the meter switches from the sleep mode to start detection.
In order to perform better energy-saving control and accelerated start on the meter, the embodiment provides a conversion strategy between different operation modes, which specifically includes:
and judging the working mode of the instrument, if the instrument is in a partial working mode, converting the partial working mode into starting detection when the voltage state of the host power supply is one of a non-working state and an overvoltage state (even if KL15 ON or CAN BUS Active is effective).
When the voltage state of the host power supply is one of the instrument state and the instrument-host state and KL15 is ON, converting the partial working mode into the full working mode;
when the meter is in a full operation mode:
when the voltage state of the host power supply is one of a non-working state and an overvoltage state, converting a full working mode into starting detection; (even if KL15 ON or CAN BUS Active is Active)
When the voltage state of the host power supply is one of the non-working state and the overvoltage state and KL15 is OFF, the full working mode is converted into the partial working mode.
And acquiring the working mode of the current instrument, and if the voltage state of the host power supply changes, converting the current instrument state into the corresponding working mode according to the changed voltage state of the host power supply. Through the design, on one hand, when the voltage state changes, the corresponding operation mode can be switched in rapidly, and the starting process of the instrument is accelerated. On the other hand, when entering the corresponding operation mode, because each operation mode defines the matched working module, unnecessary operation of the functional module is reduced, and energy consumption can be saved.
In particular, when the meter is operating normally,
working voltage:
when the power supply voltage is 6V-16V, the KL15 hard-line awakening support is required.
And (3) a normal working mode:
when the KL15 is powered on, the meter enters a normal working mode and is lighted in a full screen mode (comprising speedometer rotating speed meters on two sides and the like).
Partial working modes are as follows:
when KL15 is powered off, the instrument receives related CAN signals and lights corresponding functions, including a door opening signal (entering a sleep mode after 30 s), left and right steering lamps (danger alarm lamps), a high beam lamp, a position lamp, a PEPS working state indicator lamp, an EPB indicator lamp (maintaining a state before flameout for 10s after flameout), and a PEPS character alarm (ESCL unlocking failure, no key is detected, the electric quantity of a key battery is low, the tail end of the key abuts against the bottom of a cup stand, the key is switched to a P or N gear to be started, a brake is stepped on, and a start button is pressed).
A sleep mode:
when neither of the above conditions is present, the sleep mode is entered.
And (3) voltage exception handling:
when the supply voltage is outside the range of 6V-16V, the meter is in sleep mode. When the instrument enters the sleep mode due to the change of the power supply voltage, shutdown animation is not needed. In order to prevent the voltage from repeatedly switching between the working mode and the sleep mode at two critical points of 6V and 16V, the anti-jump voltage is specially increased and is set to be 0.5V for example;
when the voltage is reduced to 6V, the instrument enters a sleep mode, and when the voltage is increased to 6.5V, the instrument enters a working mode; meanwhile, when the voltage rises to 16.5V, the meter enters a sleep mode, and when the voltage drops to 16V, the meter enters an operating mode.
In order to quickly start and control energy conservation of the acceleration central control and reduce unnecessary module operation, the embodiment provides a conversion strategy and a mode definition between different operation modes for the central control, and specifically includes:
referring to fig. 5, the operation mode of the central control includes: any one or more of start detection, a sleep mode, a first time length mode, a working mode, a second time length mode and a screen-off mute mode.
The preset duration of the first duration mode is less than that of the second duration mode, preferably, the first duration mode is a 10min mode, and the second duration mode is a 30min mode.
Specifically, the present embodiment defines the operating states of the respective modes:
and (3) a normal working mode: all functions can be normally used.
And (3) turning off the screen and muting: screen off mute (muting only multimedia and navigation sounds), and in addition, a screen on-off strategy is provided to save energy consumption:
the switching strategy specifically comprises the following steps:
clicking a screen off key or a physical power supply key to turn off the screen, and then clicking a screen (any position), a physical key (any key) or activating voice to restore the bright screen;
if the panoramic all-round view radar or the reversing radar runs in the screen closing state, the screen is bright, and if the reversing is finished, the screen is continuously closed;
when the phone event exists in the screen closing state, the screen is bright, and after the phone event is finished, the screen is continuously closed;
when triggering the air conditioner pop-up window, the screen is bright, and whether to close the screen is determined according to the condition after timing for 8 s.
A first duration mode: receiving an unlocking signal (BCM _ R _ FLDoorlckStatus =0x 0) in a shutdown mode, running the system in a backstage in a running mode, muting a black screen (instrument alarm sound needs to be reserved), not responding to steering wheel keys, panel keys, a touch screen, a telephone, voice, an air conditioner, a panoramic view and a reversing radar, and only receiving and not sending the signal by a central control CAN. The central control carries out timing for 10 minutes and makes corresponding actions according to the following conditions:
if the ACC is not powered up after 10 minutes, the central control unit immediately enters a shutdown mode;
if the ACC is electrified within 10 minutes, the central control unit directly enters a normal working mode;
if the locking event occurs within 10 minutes, the central control unit immediately enters a shutdown mode.
The second duration mode: in order to meet the phenomenon that the central control is not restarted when the vehicle is restarted within a certain time after the vehicle is shut down, the central control performs power failure processing for delaying for 30min at a key OFF gear, relevant functions of the central control run at the background, the screen is turned OFF and muted (instrument alarm sound is reserved), a steering wheel key, a panel key, a touch screen, a telephone, voice, an air conditioner, a panoramic surround view radar and a reversing radar are not responded, and the central control CAN only receives and does not transmit the signals.
The ACC is electrified again within 30 minutes to directly enter a related interface, so that the starting time is shortened;
if the vehicle locking event occurs within 30 minutes, the central control unit immediately enters a shutdown mode.
The initial state is start detection, and the central control system detects the awakening source and executes a corresponding operation mode according to the state of the awakening source.
A sleep mode: after the whole vehicle completely sleeps (for example, a driver locks the vehicle away), the low-power-consumption mode is entered, and the consumed current is static current.
If the voltage is abnormal, in order to save power consumption, the specific operation steps of the screen turn-off mute mode are as follows:
guan Bingjing tone when voltage is abnormal: when the central control works normally, the voltage is reduced to below 8.5v (below 6 v), and the voltage is increased to above 16.5v (below 18.5 v); the central control CAN is only used for receiving and not sending the signals, and the central control CAN is used for switching off the screen and muting (instrument alarm sound needs to be reserved), does not respond to steering wheel keys, panel keys, a touch screen, a telephone, voice, an air conditioner, panoramic view and a reversing radar. Only when the power supply voltage returns to normal, the system automatically returns to the previous interface.
And (3) pre-starting when the voltage is abnormal: when the voltage rises from below 6v to above 6v and is less than 9v in the shutdown mode, when an ACC hard line awakening source exists, the system executes a pre-starting process, the system is started in a background, the screen is turned off and muted (instrument alarm sound needs to be reserved), a steering wheel key, a panel key, a touch screen, a telephone, voice, an air conditioner, a panoramic all-round view radar and a reversing radar are not responded, and the central control CAN only receives and does not transmit the signals. And only when the power supply voltage continues to rise to be more than 9v, the starting animation is walked once, and the system interface is accessed.
Specifically, in order to better control and control the transition of each operation mode under different conditions to accelerate the start-up and save energy, the embodiment provides the following method:
judging the mode of the central control system, and if the central control system detects that the ACC is OFF, the vehicle body is not unlocked and the CAN Bus idle is detected under the condition of starting detection, or when the voltage state of the power supply of the host is in an overvoltage state or a non-working state and the CAN Bus idle is detected, converting the starting detection of the central control system into a sleep mode;
under the condition of starting detection, when the voltage state of a host power supply is in an instrument state or an instrument-central control state and a central control system detects an automobile body unlocking signal, entering a first time period mode;
under the condition of starting detection, when the voltage state of a host power supply is in an instrument state and the central control system detects ACC ON, entering a screen-off mute mode; and when the voltage state of the host power supply is in an instrument-central control state and the central control system detects ACC ON, entering a working mode.
Judging the mode of the central control system, if the central control system is started in a first time period mode, when the voltage state of the host power supply is in a non-working state and the central control system detects the CAN Bus idle, or the central control system detects the CAN Bus idle and a vehicle locking signal, or the central control system detects that the time of the CAN Bus idle is longer than a preset first time, converting the central control system into a sleep mode from the first time period mode.
And judging the mode of the central control system, if the central control system is in the second time length mode, when the voltage state of the host power supply is in a non-working state and the central control system detects CAN Bus idle and ACC OFF, or the central control system detects CAN Bus idle and a vehicle locking signal, or the central control system detects that the time of the CAN Bus idle is longer than a second preset time, converting the central control system into the sleep mode from the second time length mode.
And judging the mode of the central control system, and if the central control system is in the second duration mode and the central control system detects ACC ON, entering the working mode.
The central control system is in a working mode, and when ACC OFF is detected, the central control system enters a second duration mode;
the central control system is in a working mode, and when the voltage state of the host power supply is in one of a non-working state, an overvoltage state or an instrument state, and the central control system detects ACC ON, the central control system enters a screen-off mute mode.
In the starting process, the intelligent host does not call the function of the preset application, and the preset application comprises the following steps: no response to steering wheel keys, panel keys, touch screens, telephones, air conditioners and reversing radars;
and judging whether the starting condition of the panoramic all-round viewing function is met, and if so, entering the panoramic all-round viewing interface within 2 s.
And judging whether the ACC is powered off, if so, immediately turning off the screen and muting, starting the system in a background, and entering a half-hour mode after the system is started.
After the system is started, the voice assistant is started to the background (not displayed and sounded in the foreground), the calling of the foreground is waited at any time, namely, the voice assistant is not started in the starting process, and the voice assistant is started in the background after the starting process is finished, so that the time required in the starting process is reduced. If the voice assistant is started within 10s after the start-up through the square control key or the voice button of the display screen, the screen prompts that the voice assistant enters a voice interface after the start-up is completed in the start-up of the voice assistant.
After the car is started, if the car machine is playing the U disk music or the radio (no matter the front stage playing or the back stage playing) when the car machine is previously turned off, the car machine directly enters the U disk music interface or the radio interface after the car machine is started; and in other cases, the user directly enters the main interface after starting.
Specifically, it should be noted that the technical solutions provided in the above embodiments are not only applicable to the traditional fuel vehicle type, but also applicable to the new energy electric vehicle type.
What has been described above is only a preferred embodiment of the present invention, and the present invention is not limited to the above examples. It is clear to those skilled in the art that the form in this embodiment is not limited thereto, and the adjustable manner is not limited thereto. It is to be understood that other modifications and variations directly derivable or suggested to one skilled in the art without departing from the basic idea of the present invention are to be considered within the scope of protection of the present invention.
Claims (10)
1. A power management method of an intelligent host is characterized by comprising the following steps:
establishing a voltage state by a voltage state machine of a host power supply, and establishing an instrument and/or a central control state machine to establish an operation mode; the host system monitors the power supply voltage of the power supply to acquire the voltage state of the current host power supply; managing the running mode of the instrument and/or the central control according to the obtained voltage state of the host power supply and the signal supporting monitoring;
setting the operation modes of the host system according to the voltage state, defining the operation period of each mode, and executing mutual switching between the operation modes of the central control or the instrument according to the voltage state of the host power supply; acquiring a working mode of a current instrument, and if the voltage state of the host power supply changes, converting the current instrument state into a corresponding working mode according to the changed voltage state of the host power supply;
the running modes of the instrument comprise a starting detection mode, a sleep mode, a partial working mode and a full working mode; the starting detection is defined as the initial state of the instrument, the instrument continuously detects the awakening source and executes a corresponding operation mode according to the state of the awakening source;
a sleep mode: the instrument is in a dormant state, monitors whether KL15 and CAN Wakeup signals are effective or not, and determines whether state switching is carried out or not according to the KL15 and CAN Wakeup signals;
and (3) a full working mode: the instrument performs full-function display and responds to all relevant signals;
partial working modes are as follows: the instrument closes the display of the dial plate and only displays and responds to the preset CAN signal;
in the sleep mode, when the awakening source is a KL15 ON or CAN wakeup signal, the instrument is converted into starting detection from the sleep mode;
when the instrument is in a partial working mode, when the voltage state of the host power supply is one of a non-working state and an overvoltage state, converting the partial working mode into starting detection;
when the voltage state of the host power supply is one of the meter state and the meter-central control state and KL15 is ON, the partial working mode is converted into the full working mode.
2. The method of claim 1, wherein the voltage state comprises: one or more of a non-working state, an instrument-central control state and an overvoltage state;
u < U1 or voltage U > U4, and the corresponding voltage state is a non-working state;
u1< U < U2, and the corresponding voltage state is an instrument state;
u2< U < U3, and the corresponding voltage state is an instrument-central control state;
u3< U < U4, and the corresponding voltage state is an overvoltage state;
the U is a power supply voltage of the host power supply in a voltage state, and the U1, the U2, the U3 and the U4 are critical voltages which are preset to be converted in different voltage states.
3. The power management method of an intelligent host as claimed in claim 2, wherein the default state of the voltage state of the host power supply is a non-operating state, and when the voltage state of the host power supply is in the non-operating state, the host system should be in a sleep state and not allowed to be started;
when the voltage state of the host power supply is in an instrument state, the instrument normally runs, and the screen is turned off and muted after the pre-starting is finished;
when the voltage state of the host power supply is in an instrument-central control state, the instrument and the central control normally operate;
when the voltage state of the host power supply is in an overvoltage state, the instrument is shut down and dormant, the central control screen is shut down and muted, and the host system runs in the background.
4. The power management method of an intelligent host computer according to claim 3, wherein the initial state of the host computer system is a non-powered state, when the host computer system is powered on or awakens from a sleep state, the host computer system will detect the awakening signal, and perform corresponding operations to enter different operation modes according to the effectiveness of the awakening signal;
if the wake-up signal is effective, executing a power-on process, and entering a host system working mode after the operation is finished;
if the instrument and the central control are detected to enter the sleep mode in the working mode of the host system, the host system executes the operation of the sleep stage and enters the sleep mode of the host system.
5. The power management method of an intelligent host computer according to claim 1, wherein when the meter is in a full operation mode:
when the voltage state of the host power supply is one of a non-working state and an overvoltage state, the full-working mode is converted into starting detection (even if KL15 ON or CAN BUS Active is effective);
when the voltage state of the host power supply is one of the non-working state and the overvoltage state and KL15 is OFF, the full working mode is converted into the partial working mode.
6. The method of claim 1, wherein the power management of the smart host,
the central control operation mode comprises the following steps: starting any one or more of detection, a sleep mode, a first time length mode, a working mode, a second time length mode and a screen-off mute mode;
the preset time of the first duration mode is less than the preset time of the second duration mode;
the initial state is start detection, the central control detects the awakening source and executes a corresponding operation mode according to the state of the awakening source.
7. The method as claimed in claim 6, wherein the power management method of the smart host,
under the condition of starting detection, when the central control detects ACC OFF, the vehicle body is not unlocked and CAN Bus idle, or when the voltage state of the main machine power supply is in an overvoltage state or a non-working state and CAN Bus idle, the central control is converted into a sleep mode from the starting detection;
under the condition of starting detection, when the voltage state of a main machine power supply is in an instrument state or an instrument-central control state and a central control detects an automobile body unlocking signal, entering a first time-span mode;
under the condition of starting detection, when the voltage state of a host power supply is in an instrument state and the central control detects ACC ON, entering a screen-off mute mode; when the voltage state of the host power supply is in an instrument-central control state and the central control detects ACC ON, the working mode is entered.
8. The method as claimed in claim 6, wherein the power management method of the smart host,
the central control unit is in a first time-length mode, when the voltage state of the host power supply is in a non-working state and the central control unit detects the CAN Bus idle, or the central control unit detects the CAN Bus idle and a vehicle locking signal, or the central control unit detects that the existing time of the CAN Bus idle is longer than a preset first time, the central control unit is converted into a sleep mode from the first time-length mode.
9. The method as claimed in claim 6, wherein the power management method of the smart host,
when the voltage state of the host power supply is in a non-working state and the central control detects that the CAN Bus idle and the ACC are OFF, or the central control detects that the CAN Bus idle and a vehicle locking signal exist for a time longer than a second preset time, the central control is converted into a sleep mode from the second time mode;
and the central control is in the second duration mode, and when the central control detects ACC ON, the central control enters the working mode.
10. The method as claimed in claim 6, wherein the power management method of the smart host,
the central control is in a working mode, and when ACC OFF is detected, the central control enters a second duration mode;
when the voltage state of the main machine power supply is in one of a non-working state, an overvoltage state or an instrument state and the central control detects ACC ON, the central control enters a screen-off mute mode under the working mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110389030.6A CN113071437B (en) | 2021-04-12 | 2021-04-12 | Power management method of intelligent host |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110389030.6A CN113071437B (en) | 2021-04-12 | 2021-04-12 | Power management method of intelligent host |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113071437A CN113071437A (en) | 2021-07-06 |
| CN113071437B true CN113071437B (en) | 2023-03-10 |
Family
ID=76617253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110389030.6A Active CN113071437B (en) | 2021-04-12 | 2021-04-12 | Power management method of intelligent host |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113071437B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114750715A (en) * | 2021-12-06 | 2022-07-15 | 广州汽车集团股份有限公司 | Power management system, management method and device thereof and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106114426A (en) * | 2016-06-28 | 2016-11-16 | 广州汽车集团股份有限公司 | A kind of Vehicular power management system and control method thereof |
| CN107161007A (en) * | 2017-06-16 | 2017-09-15 | 上海赫千电子科技有限公司 | A kind of vehicular meter and the integration apparatus and method of middle control |
| CN108556632A (en) * | 2018-06-10 | 2018-09-21 | 重庆三三电器股份有限公司 | A kind of intelligence TFT instrument screen intensity wake-up circuits and its control method |
| CN110928267A (en) * | 2019-10-25 | 2020-03-27 | 东风电驱动系统有限公司 | Method and device for evaluating stability of automobile electric control unit |
| CN111775727A (en) * | 2020-07-28 | 2020-10-16 | 山东爱德邦智能科技有限公司 | Electric system of electric vehicle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5847506B2 (en) * | 2011-09-14 | 2016-01-20 | 株式会社ケーヒン | Electronic control device and vehicle control system |
| US9075086B2 (en) * | 2013-05-24 | 2015-07-07 | Sierra Wireless, Inc. | Method and apparatus for determining time-varying limitations of a power source |
| CN111762114A (en) * | 2020-07-10 | 2020-10-13 | 东风电子科技股份有限公司 | Method for realizing enhanced system mode management of combination instrument |
-
2021
- 2021-04-12 CN CN202110389030.6A patent/CN113071437B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106114426A (en) * | 2016-06-28 | 2016-11-16 | 广州汽车集团股份有限公司 | A kind of Vehicular power management system and control method thereof |
| CN107161007A (en) * | 2017-06-16 | 2017-09-15 | 上海赫千电子科技有限公司 | A kind of vehicular meter and the integration apparatus and method of middle control |
| CN108556632A (en) * | 2018-06-10 | 2018-09-21 | 重庆三三电器股份有限公司 | A kind of intelligence TFT instrument screen intensity wake-up circuits and its control method |
| CN110928267A (en) * | 2019-10-25 | 2020-03-27 | 东风电驱动系统有限公司 | Method and device for evaluating stability of automobile electric control unit |
| CN111775727A (en) * | 2020-07-28 | 2020-10-16 | 山东爱德邦智能科技有限公司 | Electric system of electric vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113071437A (en) | 2021-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108958106B (en) | Electric automobile controller dormancy awakening system and control method | |
| CN110626336B (en) | Control system for automatic driving of L3-grade vehicle | |
| CN108933719B (en) | Vehicle-mounted CAN network management method, vehicle-mounted CAN network and vehicle | |
| CN106371424B (en) | A kind of vehicle dormancy method and system | |
| JP4046776B2 (en) | Data transmission system | |
| CN102485525B (en) | Vehicle-mounted system and power management method and power management device thereof | |
| CN107415741B (en) | Control method and device for working state of vehicle-mounted charger controller and electric vehicle | |
| CN209248599U (en) | A kind of intelligent travelling crane recorder | |
| CN112208470A (en) | Method for realizing low power consumption of equipment and vehicle-mounted terminal | |
| CN112087355A (en) | State control method and device, electronic module and CAN network system | |
| CN113071437B (en) | Power management method of intelligent host | |
| CN113075990A (en) | Power supply management method applied to vehicle-mounted intelligent host | |
| CN209757018U (en) | vehicle body controller and vehicle | |
| CN113071321A (en) | New energy automobile 12V storage battery low-voltage protection control system and method | |
| EP4365015A1 (en) | Vehicle control method and apparatus, and vehicle | |
| CN110329075A (en) | A kind of control system and control method and electric vehicle based on lithium battery power supply | |
| CN114967552A (en) | Vehicle operation system and method for balancing power consumption and performance | |
| CN211166757U (en) | Vehicle-mounted device for detecting leakage current | |
| CN113778056A (en) | Automobile dormancy awakening method and device, automobile and storage medium | |
| CN107215293B (en) | Anti-theft indicator lamp control method suitable for automobile instrument | |
| CN211844095U (en) | Low-power consumption battery box fire monitoring and alarm device | |
| CN113771783A (en) | Control system and method for reducing vehicle quiescent current | |
| CN111532173A (en) | Power consumption controller and control method for electric automobile | |
| CN111555947A (en) | MCU low-power consumption dormancy awakening system | |
| CN217294435U (en) | Peripheral circuit of vehicle control unit, vehicle compatible system and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |