CN111322400B - Parking electricity-saving control system and method - Google Patents
Parking electricity-saving control system and method Download PDFInfo
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- CN111322400B CN111322400B CN202010098958.4A CN202010098958A CN111322400B CN 111322400 B CN111322400 B CN 111322400B CN 202010098958 A CN202010098958 A CN 202010098958A CN 111322400 B CN111322400 B CN 111322400B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3458—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/60—Inputs being a function of ambient conditions
- F16H59/66—Road conditions, e.g. slope, slippery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/60—Inputs being a function of ambient conditions
- F16H59/66—Road conditions, e.g. slope, slippery
- F16H2059/663—Road slope
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H2061/005—Supply of electric power, e.g. batteries for back up supply
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a parking electricity-saving control system and a parking electricity-saving control method, which comprise the following steps: a scene signal acquisition unit; an environmental signal acquisition unit; the parking scene management module is used for judging whether the vehicle is in an automatic parking scene according to the driving scene information transmitted by the scene signal acquisition unit and controlling the starting of the automatic parking function of the vehicle when the vehicle is judged to be in the automatic parking scene; the power saving scene judging module analyzes and determines a power saving scene according to the driving environment information acquired and transmitted in real time by the environment signal acquisition unit; the power-saving intelligent control module controls the vehicle electric equipment to execute a corresponding power-saving mode according to the received signal for starting the automatic parking function of the vehicle and the power-saving scene transmitted by the parking scene judging module; the scene signal acquisition unit comprises a charging gun signal acquisition unit, a battery electric quantity signal acquisition unit or a gradient signal acquisition unit.
Description
Technical Field
The invention relates to the technical field of intelligent control of automobiles, in particular to a parking power-saving control system and method.
Background
Most of pure electric vehicles in the market use an electronic parking system, but the electronic parking system adopted by the existing electric vehicle mainly adopts a mode of matching a P-gear physical key with an electronic hand brake physical key.
When a driver stops and presses a P gear key or hangs in the P gear and maintains the P gear for a period of time, the electronic hand brake EPB can be automatically pulled up to realize parking, or when the driver parks and hangs in the P gear, the driver automatically presses an EPB physical key to realize electronic parking, so that the mode is manually started or closed, and the automation and intelligence degree is not high.
Although the electronic parking system can realize certain automation through a whole vehicle control strategy, the judgment of an actual driving scene is not ideal.
Disclosure of Invention
In view of the above, it is desirable to provide a parking power saving control system and method capable of improving the degree of intellectualization of parking.
The invention provides a parking power-saving control system, which comprises:
the scene signal acquisition unit is used for acquiring various driving scene information of the vehicle;
the environment signal acquisition unit is used for acquiring a plurality of driving environment information of the vehicle;
the parking scene management module is used for judging whether the vehicle is in an automatic parking scene according to the driving scene information transmitted by the scene signal acquisition unit and controlling the starting of the automatic parking function of the vehicle when the vehicle is judged to be in the automatic parking scene;
the power saving scene judging module analyzes and determines a power saving scene according to the driving environment information acquired and transmitted in real time by the environment signal acquisition unit;
the power-saving intelligent control module controls the vehicle electric equipment to execute a corresponding power-saving mode according to the received signal for starting the automatic vehicle parking function transmitted by the parking scene judging module and the power-saving scene;
scene signal acquisition unit is including the rifle signal acquisition unit that charges who gathers the rifle connection signal, the battery power signal acquisition unit of gathering battery remaining capacity SOC signal, or gather the slope signal acquisition unit of vehicle parking slope signal, parking scene management module is in the rifle connection signal that charges of scene signal acquisition unit transmission is when being, when battery remaining capacity SOC signal is less than the signal of minimum electric quantity threshold value, or when the slope signal is greater than the slope threshold value, the automatic parking function of control vehicle is opened.
In one embodiment, the scene signal acquisition unit comprises a vehicle speed signal acquisition unit for acquiring vehicle speed, a gear signal acquisition unit for acquiring a driving gear signal and a driver in-place signal acquisition unit for acquiring a driver in-place signal, and the parking scene management module controls the starting of the automatic parking function of the vehicle when the vehicle speed transmitted by the scene signal acquisition unit is less than a first speed threshold, the driving gear is an R/N/D gear and the driver in-place signal is negative.
In one embodiment, the driver in-place signal acquisition unit comprises a camera arranged in the front row of the cabin and used for acquiring driver image information, a driver safety belt signal acquisition unit used for acquiring driver safety belt signals, a pedal signal acquisition unit used for acquiring brake pedal signals and an accelerator signal acquisition unit used for acquiring accelerator signals, wherein when the driver image signals are not read according to the driver image information and/or the driver safety belt fastening signals are not received and/or the brake pedal signals are not received and/or the accelerator signals are not received, the driver in-place signal acquisition unit judges whether the driver in-place signals are present or not, when the driver image signals are read according to the driver image information and/or the driver safety belt fastening signals are received and/or the brake pedal signals are received and/or the accelerator signals are received, and judging that the presence signal of the driver is yes.
In one embodiment, the scene signal acquisition unit comprises a vehicle speed signal acquisition unit for acquiring vehicle speed, a gear signal acquisition unit for acquiring a driving gear signal and a hatch signal acquisition unit for acquiring an engine hatch opening signal, and the parking scene management module controls the starting of the automatic parking function of the vehicle when the vehicle speed transmitted by the scene signal acquisition unit is less than a second speed threshold, the driving gear is an R/N/D gear and the engine hatch opening signal is negative.
In one embodiment, the scene signal acquisition unit comprises a vehicle speed signal acquisition unit for acquiring vehicle speed, a gear signal acquisition unit for acquiring driving gear signals and a lower high-voltage signal acquisition unit for acquiring high-voltage signals of a driver, wherein the parking scene management module is used for controlling the starting of the automatic parking function of the vehicle when the driver actively drives the high-voltage signals, the vehicle speed transmitted by the scene signal acquisition unit is 0, the driving gear is an R/N/D gear, and the driver actively drives the high-voltage signals. In one embodiment, the environment signal acquisition unit comprises a driver on-site signal acquisition unit for acquiring a driver on-site signal, a passenger on-site signal acquisition unit for acquiring a passenger on-site signal, and a vehicle door signal acquisition unit for acquiring a vehicle door opening or closing signal and transmitting the vehicle door opening or closing signal to the power saving scene judgment module, the power-saving scene judging module judges whether the in-place signal of the driver, the in-place signal of the passenger and the closing signal of the vehicle door transmitted by the environment signal acquisition unit are the signals, and determining that the power-saving scene is a first power-saving scene without people in the vehicle, and controlling the air conditioner and the audio-visual entertainment system to sleep and memorizing and storing the air conditioner temperature, the air conditioner air volume and the audio-visual entertainment system playing progress by the power-saving intelligent control module according to the vehicle automatic parking function starting signal transmitted by the parking scene management module and the first power-saving scene signal transmitted by the power-saving scene judgment module.
In one embodiment, the parking power-saving control system further comprises an assistant prompting module, the power-saving scene judging module sends a power-saving prompting instruction to the assistant prompting module when the in-place signal of the driver is negative and the in-place signal of the passenger is positive, the assistant prompting module sends a prompt whether to enter the power-saving mode to the passenger, if the passenger selects not to enter the power-saving mode, the power-saving scene does not start the power-saving mode judgment according to the passenger selection signal transmitted by the assistant prompting module, and the vehicle electric equipment continues to work; if the passenger selects to enter the power saving mode, the power saving scene judging module determines that the power saving mode at the moment is a second power saving scene in which the driver is not in place and the passenger is in place, and the power saving intelligent control module controls the vehicle electric equipment to enter the dormant state according to the received vehicle automatic parking function starting signal and the second power saving scene signal.
In one embodiment, the environment signal acquisition unit further comprises a timer for timing the duration of the first power saving scene, if the duration of the first power saving scene is within a time threshold t, the power saving scene judgment module receives a door opening signal and a driver or passenger presence signal, determines that the power saving scene at the moment is a third power saving scene in which a person returns to the vehicle again, and the power saving intelligent control module wakes up the air conditioner and audio-visual entertainment system in a dormant state and restores the setting and progress of starting the dormancy according to the received vehicle automatic parking function starting signal and the third power saving scene signal.
In one embodiment, the environment signal acquisition unit further comprises a door lock signal acquisition unit for acquiring a door unlocking or locking signal, and a distance signal acquisition unit for calculating a distance between a door key and a vehicle according to position information of the door key and the vehicle, and when the power saving scene judgment module receives a door locking signal in a power saving scene and the distance between the door key and the vehicle is greater than a distance threshold value, and determines that a corresponding power saving scene is a fourth power saving scene in which a driver or a passenger gets off the vehicle and is far away from the vehicle, the power saving intelligent control module controls all vehicle electric devices to be turned off according to the received vehicle automatic parking function turn-on signal and the fourth power saving scene signal.
The invention also relates to a parking electricity-saving control method which comprises the method for automatically parking and controlling electricity-saving of the vehicle by using the parking electricity-saving control system.
In conclusion, the parking electricity-saving control system provided by the invention can automatically judge and identify various scenes needing electronic parking, automatically jump to a P gear and pull up an EPB (electronic parking Brake) after each parking scene condition is met, and is more intelligent and automatic without a driver actively operating a button; the misoperation/forgetting of the P gear and the pulling-up of the EPB by the driver are avoided, and the safety and the convenience of the use of the vehicle are improved; and after the automatic electronic parking function is realized, intelligent power-saving management control can be immediately started, and the intellectualization of power-saving management is improved compared with the traditional energy management strategy.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic block diagram of a parking power saving control system provided by the present invention;
fig. 2 is a schematic block diagram illustrating a parking power saving control system and method according to the present invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined objects, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1 and 2, the present invention provides a parking power saving control system, which includes:
the scene signal acquisition unit is used for acquiring various driving scene information of the vehicle;
the environment signal acquisition unit is used for acquiring a plurality of driving environment information of the vehicle;
the parking scene management module is used for judging whether the vehicle is in an automatic parking scene according to the driving scene information transmitted by the scene signal acquisition unit and controlling the starting of a vehicle parking function when the vehicle is judged to be in the automatic parking scene;
the power saving scene judging module analyzes and determines a power saving scene according to the driving environment information acquired and transmitted in real time by the environment signal acquisition unit;
and the power-saving intelligent control module controls the vehicle electric equipment to execute a corresponding power-saving mode according to the received signal for starting the automatic parking function of the vehicle and the power-saving scene transmitted by the parking scene judging module.
The parking electricity-saving control system can automatically judge and identify various scenes needing electronic parking, automatically jump to a P gear and pull up an EPB (electric Park Brake) after each parking scene condition is met, a driver does not need to actively operate a button, and the electronic parking system is more intelligent and automatic; the misoperation/forgetting of the P gear and the pulling-up of the EPB by the driver are avoided, and the safety and the convenience of the use of the vehicle are improved; and after the automatic electronic parking function is realized, intelligent power-saving management control can be immediately started, and the intellectualization of power-saving management is improved compared with the traditional energy management strategy.
Preferably, the parking scene management module, the power-saving scene judgment module and the power-saving intelligent control module provided by the invention belong to a VCU (vehicle control unit). In actual use, the VCU can collect signals transmitted by the scene signal acquisition units of the whole vehicle, carry out comprehensive processing judgment and send execution instructions to the controllers, and the VCU carries out comprehensive processing judgment on driving scene signals which are sent by the individual controllers and are related to the fact that the whole vehicle needs to execute P gear locking and finally sends a P gear locking and EPB pulling instruction when the conditions that the vehicle needs to be automatically parked are judged.
It CAN be understood that in practical application, the automatic parking function and the intelligent power saving control thereof in the invention are mainly transmitted by the CAN and LIN communication of related equipment signals acquired by a vehicle controller and a vehicle body controller (acquiring engine compartment cover information, driver safety belt information and vehicle speed information), an in-vehicle influence system (driver in-place information and passenger in-place information), a gear controller (acquiring gear signals), a thermal management controller, a vehicle entertainment system controller, a battery controller (battery residual capacity (SOC)) and other controllers, and the VCU is used as a main controller (core of vehicle control) of the vehicle, CAN integrate main signals of all sub-controllers, realizes that the VCU integrates and comprehensively judges all signals, makes a decision, and is convenient for control on the vehicle level; furthermore, the CAN and LIN communication modes CAN be used for providing real-time and reliable data communication for each control unit and each node, and the trouble caused by excessive wiring harnesses in the traditional control mode CAN be avoided.
The invention comprehensively processes scene information signals of all vehicles acquired by a scene signal acquisition unit and judges whether the vehicles belong to an automatic parking scene by a parking scene management module, wherein the scene information signals of all vehicles in the process comprise vehicle speed signals, gear signals, driver in-place signals, engine compartment cover opening signals, driver active down high-voltage signals (a down high-voltage relay for cutting off the battery pack to output electric quantity outwards), charging gun connection signals, battery residual electric quantity SOC signals and vehicle parking gradient signals.
Specifically, the parking scene management module judges whether the vehicle is in an automatic parking scene, and the scene of requesting the start of the auto p function is:
1. the invention provides a scene signal acquisition unit which comprises a vehicle speed signal acquisition unit for acquiring vehicle speed, a gear signal acquisition unit for acquiring driving gear signals and a driver in-place signal acquisition unit for acquiring driver in-place signals. Preferably, the first speed threshold is 5 km/h.
Under the condition, the driver in-place signal acquisition unit comprises a camera which is arranged in the front row of the cabin and is used for acquiring the image information of the driver, a driver safety belt signal acquisition unit for acquiring the signals of the safety belt of the driver, a pedal signal acquisition unit for acquiring the signals of a brake pedal and an accelerator signal acquisition unit for acquiring the signals of the accelerator, wherein the in-place signal acquisition unit judges and generates whether the driver in-place signal is negative when the image information of the driver cannot be read and/or the signals of the safety belt of the driver are not received and/or the signals of the brake pedal are not received and/or the signals of the accelerator are not received according to the image information of the driver; and when the driver image signal is read according to the driver image information and/or the driver wearing safety belt signal is received and/or the brake pedal signal is received and/or the accelerator signal is received, judging and generating that the driver on-site signal is yes.
2. The scene signal acquisition unit also comprises a vehicle speed signal acquisition unit for acquiring the vehicle speed, a gear signal acquisition unit for acquiring a driving gear signal and a hatch cover signal acquisition unit for acquiring an engine hatch cover opening signal, and the parking scene management module judges that the vehicle is in an automatic parking scene and controls the starting of the automatic parking function of the vehicle when the vehicle speed transmitted by the scene signal acquisition unit is less than a second speed threshold, the driving gear is an R/N/D gear and the engine hatch cover opening signal is negative. Preferably, the second speed threshold is 2 km/h.
3. The scene signal acquisition unit comprises a vehicle speed signal acquisition unit for acquiring vehicle speed, a gear signal acquisition unit for acquiring driving gear signals and a lower high-voltage signal acquisition unit for acquiring a driver active lower high-voltage signal, the parking scene management module judges that the vehicle is in an automatic parking scene when the vehicle speed transmitted by the scene signal acquisition unit is 0, the driving gear is an R/N/D gear and the driver actively drives the high-voltage signal, and controls the starting of the automatic parking function of the vehicle.
When scene signal acquisition unit including three kinds of driving scene information such as rifle signal acquisition unit that charges of gathering rifle connection signal, battery electric quantity signal acquisition unit of gathering battery residual capacity SOC signal, or the slope signal acquisition unit of gathering vehicle parking slope signal, the parking scene of opening of control vehicle automatic parking function includes:
4. the parking scene management module judges that the vehicle is in an automatic parking scene when the charging gun connection signal transmitted by the scene signal acquisition unit is positive, and controls the starting of the automatic parking function of the vehicle; the process includes three ways of charging gun connection signal including inserting AC charging gun/discharging gun/DC charging gun.
5. And the parking scene management module judges that the vehicle is in an automatic parking scene when the SOC signal of the battery residual electric quantity is smaller than the signal of the minimum electric quantity threshold value, and controls the starting of the automatic parking function of the vehicle.
6. And when the gradient signal is greater than the gradient threshold value, the parking scene management module judges that the vehicle is in an automatic parking scene and controls the starting of the automatic parking function of the vehicle. Preferably, the grade threshold is 5%.
According to the invention, under the condition that an EPB physical key is cancelled, the vehicle controller collects and processes the vehicle signal, and when any scene is met, automatic electronic parking (automatic execution of the vehicle) is carried out, and the automatic electronic parking can be realized without the operation of a driver.
On the basis of controlling the starting of the automatic parking function of the vehicle (after the starting of the automatic P function), the invention further analyzes and determines the power-saving scene according to different driving environment information according to the power-saving scene judgment module to carry out the condition and the process of intelligent power-saving management control, and specifically comprises the following steps:
the environment signal acquisition unit comprises a driver on-site signal acquisition unit for acquiring a driver on-site signal, a passenger on-site signal acquisition unit for acquiring a passenger on-site signal, and a vehicle door signal acquisition unit for acquiring a vehicle door opening or closing signal and transmitting the vehicle door signal to the power-saving scene judgment module, the power-saving scene judgment module determines that the power-saving scene is a first power-saving scene that a driver and passengers leave a vehicle cabin (no person exists in the vehicle) when the driver on-site signal transmitted by the environment signal acquisition unit is negative, the passenger on-site signal is negative and the vehicle door is closed, the power-saving intelligent control module controls the air conditioner and the audio-visual entertainment system to sleep according to a vehicle automatic parking function starting signal transmitted by the parking scene management module and the first power-saving scene signal transmitted by the power-saving scene judgment module, and simultaneously memorizes and stores the air conditioner temperature, the air conditioner air volume setting and the playing schedule of the audio-visual entertainment system, and (4) the vehicle does not wait, and after a certain time (time threshold t) is continued, the vehicle starts to be powered off at high voltage (power is off).
In detail, the parking electricity-saving control system provided by the invention also comprises an assistant prompting module, wherein the electricity-saving scene judging module sends an electricity-saving prompting instruction to the assistant prompting module when the in-place signal of the driver is negative and the in-place signal of the passenger is positive, the assistant prompting module sends a prompt whether to enter the electricity-saving mode to the passenger, the passenger selects whether to enter the electricity-saving mode according to the requirement, the electricity-saving scene judging module does not start when the passenger selects not to enter the electricity-saving mode, the vehicle electric equipment continues to work, the whole vehicle does not power off, the air conditioner and the audio-visual entertainment system continue to work, and the situation that the driver leaves for a short time and the audio-visual entertainment system needs to automatically restart the vehicle to power on can be avoided; when the passenger selects to enter the power-saving scene, the power-saving scene judging module starts and determines that the power-saving mode is the second power-saving scene in which the driver is not in place and the passenger is in place, and the power-saving intelligent control module controls the electric equipment of the whole vehicle to immediately enter the dormant state.
If the duration time of the first power saving scene is within the time threshold t, when the power saving scene judging module receives a vehicle door opening signal and a driver or passenger presence signal (a person is in the vehicle), and determines that the power saving scene at the moment is a third power saving scene in which the person returns to the vehicle, the power saving intelligent control module awakens the air conditioner and the audio-visual entertainment system in the dormant state according to the received vehicle automatic parking function starting signal and the third power scene signal, and restores the setting and the progress of the system to the setting and the progress of starting the dormancy. Preferably, the time threshold t is 2 minutes, that is, within 2 minutes of the start of the sleep power saving mode, if the driver/passenger returns to the vehicle, the entire vehicle electrical equipment, the air conditioner and the audio-visual entertainment system, is automatically started and is restored to the last setting during sleep according to the memory storage function.
Furthermore, the environment signal acquisition unit provided by the invention also comprises a door lock signal acquisition unit for acquiring a door unlocking or locking signal, and a distance signal acquisition unit for calculating the distance between the door key and the vehicle according to the position information of the door key and the vehicle, when the power-saving scene judgment module receives the door locking signal and the distance between the door key and the vehicle is larger than a distance threshold value, the corresponding power-saving scene is determined to be a fourth power-saving scene in which a driver or a passenger gets off the vehicle and is far away from the vehicle, at the moment, the power-saving intelligent control module controls all vehicle electric equipment (an air conditioner, an entertainment audio-visual system, a vehicle lamp, a wiper and the like) to be closed according to the received vehicle automatic parking function starting signal and the fourth power-saving scene signal, and memorizes and stores the setting before closing, and at the moment, the whole vehicle enters a power-off process. Preferably, the distance threshold is 10 meters.
In the process of controlling the power saving mode, the driver in-place signal acquisition unit comprises a camera which is arranged in the front row of a cabin and is used for acquiring the image information of a driver, a driver safety belt signal acquisition unit for acquiring the signals of the safety belt of the driver, a pedal signal acquisition unit for acquiring the signals of a brake pedal and an accelerator signal acquisition unit for acquiring the signals of the accelerator, and the driver in-place signal acquisition unit judges and generates whether the driver in-place signal is the signal or not when the driver image signal cannot be read and/or the signals of the safety belt of the driver are not received and/or the signals of the brake pedal are not received and/or the signals of the accelerator are not received according to the image information of the driver; and when the driver image signal is read according to the driver image information and/or the driver wearing safety belt signal is received and/or the brake pedal signal is received and/or the accelerator signal is received, judging and generating that the driver on-site signal is yes.
Similarly, the passenger signal acquisition unit can comprise a front camera and a rear camera which are arranged on the front row and the rear row in the cabin and can accurately identify and acquire all passenger image information in the cabin, and a passenger safety belt signal acquisition unit for acquiring passenger safety belt signals. For other ways of determining the presence of the driver or the passenger, reference may be made to the prior art, and specific reference is not made herein to a limitation.
More specifically, when the present invention relates to the judgment of the presence signal of the driver and/or the passenger according to the camera, the camera collects the image signal of the driver and/or the passenger and sends the image signal to the image processor, the image processor can judge whether the driver/the passenger is still in the vehicle through self-learning and self-carried recognition algorithm, namely, the presence signal of the driver and/or the passenger is obtained, the vehicle control unit VCU can immediately and automatically judge whether the power consumption components such as an air conditioner, an in-vehicle audio and video system and the like are immediately turned off after the lock P is locked according to the information, and executes the power saving strategy. And as optimization, after the automatic parking is finished and no driver or other passengers are judged in the vehicle, the whole vehicle can immediately enter a power saving control mode, at the moment, power consumption components such as an air conditioner and an entertainment audio and video system are immediately turned off, and the temperature, the air volume and the playing progress of the audio and video entertainment system set by the turned-off or dormant air conditioner have a memory function, at the moment, the power consumption components such as the air conditioner and the entertainment audio and video system are still in a dormant state, and if the driver/the passengers leave the vehicle and return to the vehicle in a short time, the air conditioner and the audio and video entertainment system are automatically turned on and restore the previous setting/progress; and when the time threshold is exceeded, judging that the distance between the driver and the member and the vehicle exceeds the distance threshold, and automatically executing high voltage reduction on the vehicle at the moment so that all vehicle electric equipment such as an air conditioner, an entertainment audio and video system and the like are completely closed.
More specifically, the image processing unit has self-learning capability, and an internal algorithm is added, so that whether the driver and the passenger are in the vehicle can be judged. Even for children, members who are not sitting and lying down and resting on the back row seats, can be identified. And the identified information is converted into a signal and sent to the vehicle control unit. The vehicle control unit can conveniently adopt an optimal power-saving control strategy. The requirements of saving electricity and automatically identifying passengers in the vehicle are realized.
The invention also provides a parking electricity-saving control method, which comprises a method for automatically parking and controlling electricity-saving by using the parking electricity-saving control system, and the control method comprises the following steps:
judging whether the vehicle is in an automatic parking scene or not according to the acquired information of various driving scenes;
when the vehicle accords with an automatic parking scene, automatically controlling the starting of the parking function of the vehicle;
determining a power saving scene according to the acquired driving environment information;
and controlling the vehicle electric equipment to execute a corresponding power saving mode according to the received starting signal for automatically controlling the vehicle parking function and the power saving scene signal.
The invention starts the vehicle parking function when conforming to the automatic parking scene, then determines a power saving scene according to the driving environment information of the vehicle, namely, in the process of executing the power saving mode, the whole vehicle can immediately enter a power saving control mode, namely, after judging that the automatic parking is finished, and after no driver or other passengers exist in the vehicle, immediately closes power consumption components such as an air conditioner, an entertainment audio and video system, and has a memory function for the temperature and air volume set by the air conditioner during the dormancy and the playing progress of the audio and video entertainment system; and when the time threshold is exceeded, judging that the distance between the driver and the member and the vehicle exceeds the distance threshold, and automatically executing high voltage reduction on the vehicle at the moment so that all vehicle electric equipment such as an air conditioner, an entertainment audio and video system and the like are completely closed.
In conclusion, the parking electricity-saving control system provided by the invention can automatically judge and identify various scenes needing electronic parking, automatically jump to a P gear and pull up an EPB (electric Park Brake) after each parking scene condition is met, and is more intelligent and automatic without a driver actively operating a button; the misoperation/forgetting of the P gear and the pulling-up of the EPB by the driver are avoided, and the safety and the convenience of the use of the vehicle are improved; and after the automatic electronic parking function is realized, intelligent power-saving management control can be immediately started, and the intellectualization of power-saving management is improved compared with the traditional energy management strategy.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A parking power saving control system characterized by comprising:
the scene signal acquisition unit is used for acquiring various driving scene information of the vehicle;
the environment signal acquisition unit is used for acquiring a plurality of driving environment information of the vehicle;
the parking scene management module is used for judging whether the vehicle is in an automatic parking scene according to the driving scene information transmitted by the scene signal acquisition unit and controlling the starting of the automatic parking function of the vehicle when the vehicle is judged to be in the automatic parking scene;
the power saving scene judging module analyzes and determines a power saving scene according to the driving environment information acquired and transmitted in real time by the environment signal acquisition unit;
the power-saving intelligent control module controls the vehicle electric equipment to execute a corresponding power-saving mode according to the received signal for starting the automatic vehicle parking function transmitted by the parking scene judging module and the power-saving scene;
scene signal acquisition unit is including the rifle signal acquisition unit that charges who gathers the rifle connection signal, the battery power signal acquisition unit of gathering battery remaining capacity SOC signal, or gather the slope signal acquisition unit of vehicle parking slope signal, parking scene management module is in the rifle connection signal that charges of scene signal acquisition unit transmission is when being, when battery remaining capacity SOC signal is less than the signal of minimum electric quantity threshold value, or when the slope signal is greater than the slope threshold value, the automatic parking function of control vehicle is opened.
2. The parking power-saving control system according to claim 1, wherein the scene signal acquisition unit comprises a vehicle speed signal acquisition unit for acquiring vehicle speed, a gear signal acquisition unit for acquiring a driving gear signal, and a driver in-place signal acquisition unit for acquiring a driver in-place signal, and the parking scene management module controls the automatic parking function of the vehicle to be started when the vehicle speed transmitted by the scene signal acquisition unit is less than a first speed threshold, the driving gear is an R/N/D gear, and the driver in-place signal is no.
3. The parking power-saving control system according to claim 2, wherein the driver in-place signal acquisition unit comprises a camera mounted in the front row of the cabin for acquiring driver image information, a driver safety belt signal acquisition unit for acquiring driver safety belt signals, a pedal signal acquisition unit for acquiring brake pedal signals and an accelerator signal acquisition unit for acquiring accelerator signals, the in-place signal acquisition unit judges whether the driver in-place signal is present or not when the driver image signal is not read and/or the driver safety belt fastening signal is not received and/or the brake pedal signal is not received and/or the accelerator signal is not received according to the driver image information, and when the driver image signal is read and/or the driver safety belt fastening signal is received and/or the brake pedal signal is received and/or the accelerator signal is received according to the driver image information, and judging that the presence signal of the driver is yes.
4. The parking power-saving control system according to claim 1, wherein the scene signal acquisition unit comprises a vehicle speed signal acquisition unit for acquiring vehicle speed, a gear signal acquisition unit for acquiring a driving gear signal, and a hood signal acquisition unit for acquiring an engine hood opening signal, and the parking scene management module controls the starting of the automatic parking function of the vehicle when the vehicle speed transmitted by the scene signal acquisition unit is less than a second speed threshold, the driving gear is an R/N/D gear, and the engine hood opening signal is no.
5. The parking power-saving control system according to claim 1, wherein the scene signal acquisition unit comprises a vehicle speed signal acquisition unit for acquiring vehicle speed, a gear signal acquisition unit for acquiring a driving gear signal, and a lower high-voltage signal acquisition unit for acquiring a driver active lower high-voltage signal, and the parking scene management module controls the automatic parking function of the vehicle to be started when the vehicle speed transmitted by the scene signal acquisition unit is 0, the driving gear is an R/N/D gear, and the driver actively drives the high-voltage signal.
6. The parking power-saving control system according to claim 1, wherein the environment signal acquisition unit comprises a driver in-place signal acquisition unit for acquiring a driver in-place signal, a passenger in-place signal acquisition unit for acquiring a passenger in-place signal, and a door signal acquisition unit for acquiring a door opening or closing signal and transmitting the door opening or closing signal to the power-saving scene determination module, the power-saving scene determination module determines that a power-saving scene is a first power-saving scene in which no person is in the vehicle according to the fact that the driver in-place signal transmitted by the environment signal acquisition unit is negative, the passenger in-place signal is negative, and the door is closed, and the power-saving intelligent control module controls the air conditioner and the audio-visual entertainment system to sleep and to enable the air conditioner temperature, The air volume of the air conditioner and the playing progress of the audio-video entertainment system are memorized and stored.
7. The parking power-saving control system according to claim 6, further comprising an assistant prompting module, wherein the power-saving scene judging module sends a power-saving prompting instruction to the assistant prompting module when the in-place signal of the driver is negative and the in-place signal of the passenger is positive, the assistant prompting module sends a prompt of whether to enter the power-saving mode to the passenger, if the passenger selects not to enter the power-saving mode, the power-saving scene judging module does not start the power-saving mode judgment according to the passenger selection signal transmitted by the assistant prompting module, and the vehicle electric equipment continues to work; if the passenger selects to enter the power saving mode, the power saving scene judging module determines that the power saving mode at the moment is a second power saving scene in which the driver is not in place and the passenger is in place, and the power saving intelligent control module controls the vehicle electric equipment to enter the dormant state according to the received vehicle automatic parking function starting signal and the second power saving scene signal.
8. The parking power-saving control system according to claim 6, wherein the environment signal acquisition unit further comprises a timer for timing the duration of the first power-saving scene, and if the duration of the first power-saving scene is within the time threshold t, the power-saving scene judgment module receives a door opening signal and a driver or passenger presence signal, determines that the current power-saving scene is a third power-saving scene in which a person returns to the vehicle again, and the power-saving intelligent control module wakes up the air conditioner and the audio-visual entertainment system in the dormant state and restores the setting and the progress of starting the dormant state according to the received vehicle automatic parking function starting signal and the third power-saving scene signal.
9. The parking power-saving control system according to claim 6, wherein the environment signal acquisition unit further includes a door lock signal acquisition unit for acquiring a door unlock or lock release signal, and a distance signal acquisition unit for calculating a distance between a door key and the vehicle according to position information of the door key and the vehicle, and when the power-saving scene determination module receives the power-saving scene as the door lock release signal and the distance between the door key and the vehicle is greater than a distance threshold, and determines that the corresponding power-saving scene is a fourth power-saving scene in which a driver or a passenger gets off the vehicle and is far away from the vehicle, the power-saving intelligent control module controls all vehicle electric devices to be turned off according to the received vehicle automatic parking function turn-on signal and the fourth power-saving scene signal.
10. A parking power-saving control method characterized by comprising a method of performing automatic parking and power-saving control of a vehicle using the parking power-saving control system according to any one of claims 1 to 9.
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| CN114454860A (en) * | 2021-08-25 | 2022-05-10 | 苏州麦哲轮汽车电子科技有限公司 | Electronic parking system and parking method for automobile |
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