CN113071325B - Vehicle energy recovery mode control method, system, equipment and storage medium - Google Patents
Vehicle energy recovery mode control method, system, equipment and storage medium Download PDFInfo
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- CN113071325B CN113071325B CN202110426452.6A CN202110426452A CN113071325B CN 113071325 B CN113071325 B CN 113071325B CN 202110426452 A CN202110426452 A CN 202110426452A CN 113071325 B CN113071325 B CN 113071325B
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- 238000011084 recovery Methods 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000012544 monitoring process Methods 0.000 claims abstract description 32
- 230000003068 static effect Effects 0.000 claims abstract description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 27
- 238000012545 processing Methods 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 description 16
- 230000007797 corrosion Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
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- 238000012360 testing method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
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- 238000004092 self-diagnosis Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S5/00—Servicing, maintaining, repairing, or refitting of vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
Abstract
The invention provides a vehicle energy recovery mode control method, in particular to the technical field of vehicles, and particularly relates to a vehicle energy recovery mode control method and a vehicle energy recovery mode control system, wherein the vehicle energy recovery mode control method comprises the following steps: when the vehicle is in a stop/static state, collecting monitoring signal data; when a vehicle is started, comparing the monitoring signal data of the vehicle control unit with a preset derusting parameter threshold value, judging whether to enter a derusting mode, if so, entering the derusting mode after the vehicle runs, and monitoring the braking strength and the braking times of the vehicle in real time, otherwise, executing energy recovery after the vehicle runs; after the vehicle braking strength and the vehicle braking frequency reach the preset derusting parameter threshold value condition, energy recovery is executed, the brake disc rusting phenomenon can be intelligently identified, derusting work is executed, the whole vehicle energy consumption and cost are reduced, and intelligent energy recovery of the vehicle is realized.
Description
Technical Field
The present invention relates to the field of vehicle technologies, and in particular, to a method, a system, a device, and a storage medium for controlling a vehicle energy recovery mode.
Background
In the prior art, the realization of energy recovery is mainly concentrated in the braking energy recovery technology, but the maintenance of the vehicle is neglected. With the limitation of parking resources and the extension of the range of human activities, regional activities across countries (provinces) are more and more, and the phenomenon of corrosion of some ironwork without rust prevention treatment on the surface is caused when the vehicle is parked outdoors for a long time, so that the overall performance of the vehicle is poor. At present, the general problem that the brake disc corrosion can not effectively be clear away in time of the vehicle ubiquitous that has the energy recuperation function, though can realize the rust cleaning function in traditional braking driving mode, the rust cleaning work under the braking driving mode of new energy vehicle, no matter under any kind of vehicle operating mode, the rust phenomenon all is difficult to thoroughly clear away, especially the vehicle parks for a long time outdoors, the large tracts of land rust phenomenon will appear on the brake disc, the rust cleaning work quality is relatively poor, produce vehicle braking shake, the problem of drawing a disc, brush a disc sound phenomenon and the scheduling problem that drags.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a vehicle energy recovery mode control method and system, which are used to solve the problem of large-area corrosion on a brake disc in the prior art, perform self-diagnosis of corrosion on the brake disc, effectively complete the complete removal of corrosion, improve the quality of rust removal, and achieve vehicle energy recovery.
To achieve the above and other related objects, the present invention provides a vehicle energy recovery mode control method characterized by collecting monitoring signal data when a vehicle is in a stopped/stationary state; when the vehicle is in a starting state, comparing the monitoring signal data of the vehicle control unit with a preset derusting parameter threshold value, judging whether to enter a derusting mode, if so, entering the derusting mode, and monitoring the braking strength and the braking times of the vehicle in real time, otherwise, executing energy recovery after the vehicle runs; and after the vehicle braking strength and the vehicle braking frequency reach the preset derusting parameter threshold value condition, executing energy recovery.
In an embodiment of the invention, the vehicle enters the stop/still state again, whether the preset derusting parameter threshold is reached is judged again, if yes, the energy recovery work is executed, and if not, the next stage of cyclic judgment is carried out.
In an embodiment of the present invention, the method further includes presetting a vehicle derusting parameter threshold, where the derusting parameter threshold includes vehicle stop time period signal data, vehicle brake strength, and vehicle brake times.
In an embodiment of the invention, the preset vehicle rust removal parameter threshold includes a vehicle stop time period, a vehicle braking strength, and a vehicle braking frequency.
In an embodiment of the present invention, the step of presetting the vehicle rust removal parameter threshold includes:
obtaining brake disc data and friction plate data under each vehicle condition of the vehicle; and establishing the derusting limitation database according to the brake disc data and the friction plate data.
In an embodiment of the present invention, the step of collecting the monitoring signal data includes: obtaining brake opening degree signal data through a brake switch unit of the vehicle; calculating time period signal data according to the brake opening degree signal data; and transmitting the time period signal data to a vehicle control unit through a vehicle control local area network, and acquiring the time period signal data as the monitoring signal data through the vehicle control unit.
The invention provides a control system for a vehicle energy recovery mode, which is characterized by comprising a data acquisition unit, a control unit and a control unit, wherein the data acquisition unit is used for acquiring monitoring signal data when a vehicle is in a stop/static state; the data presetting unit is used for comparing the monitoring signal data of the vehicle control unit with a preset derusting parameter threshold value when the vehicle is started, judging whether to enter a derusting mode, if so, entering the derusting mode after the vehicle runs, and monitoring the braking strength and the braking times of the vehicle in real time, otherwise, executing energy recovery after the vehicle runs; and the data processing unit is used for executing energy recovery after the vehicle braking strength and the vehicle braking frequency reach the preset derusting parameter threshold value condition.
As described above, the present invention provides a vehicle energy recovery mode control method, in which a vehicle control unit determines a vehicle parking/standing time in advance, and if the preset time is reached, after the vehicle travels again, the energy recovery mode first operates according to a preset rust removal logic: after meeting preset brake strength and brake times, the vehicle is automatically switched to enter a traditional energy recovery working mode, so that signal data in a vehicle control unit is subjected to iteration refreshing in a cycle order, the rust removal control logic is updated in real time according to the current vehicle condition, the rust self-detection of a vehicle brake disc is effectively finished, automatic rust removal is realized, the self-maintenance of the vehicle is enhanced, the problem of disc scratching is effectively eliminated, a circle of grooves formed on the working surface of the brake disc are reduced, the problem of shaking is further effectively eliminated, the laminating effect of a friction block and the brake disc is enhanced, the problem of disc brushing noise is further effectively eliminated, the driving force of the vehicle is enhanced, the running energy consumption and the cost of the whole vehicle are reduced, and the intelligent energy recovery of the vehicle is realized.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts
FIG. 1 is a diagram illustrating steps S100-S600 of an energy recovery method according to an embodiment of a vehicle energy recovery mode control method of the present invention;
FIG. 2 is a schematic diagram illustrating steps S11-S13 of the energy recovery method in step S100 according to an embodiment of the energy recovery mode control method of the present invention;
FIG. 3 is a schematic diagram of an energy recovery system according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating an energy recovery unit in an energy recovery system according to an embodiment of a vehicle energy recovery mode control method of the present invention;
FIG. 5 is a diagram illustrating a sensor unit in an energy recovery unit according to an embodiment of the energy recovery mode control method of the present invention;
FIG. 6 is a schematic diagram of a driving unit of an energy recovery unit according to an embodiment of a vehicle energy recovery mode control method of the present invention;
FIG. 7 is a schematic diagram of a power unit of an energy recovery unit according to an embodiment of a vehicle energy recovery mode control method of the present invention;
FIG. 8 is a schematic diagram of a system device and signal transmission thereof according to an embodiment of a vehicle energy recovery mode control method of the present invention;
FIG. 9 is a schematic diagram illustrating a control flow of a vehicle energy recovery mode control method according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a system apparatus and signal transmission thereof according to another embodiment of a vehicle energy recovery mode control method of the present invention;
FIG. 11 is a flowchart illustrating a method of controlling an energy recovery mode of a vehicle according to another embodiment of the present invention.
Description of the element reference numerals
1. A system; 100. a data acquisition unit; 200 data presetting units; 300. a data processing unit; 301. a rust removal control unit; 400. an energy recovery unit; 401. a hydraulic brake unit; 402. a brake switch unit; 403. a sensor unit; 404. an instrument control unit; 405. a shift control unit; 406. a drive unit; 407. a power unit; 403a, a first sensor unit; 403b, a second sensor unit; 403c, a third sensor unit; 403 a', an acceleration sensor; 403 b', a temperature sensor; 403 c', a humidity sensor; 406a, a motor controller; 406. a drive motor; 407a, a battery management system; 407. a power battery;
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
In the control strategy of energy recovery, when the kinetic energy of the vehicle is recovered based on the intervention of a mechanical hydraulic braking system, the kinetic energy is reapplied to the driving of the vehicle, the speed of the vehicle can be limited by setting, and the electromagnetic energy provided in the energy recovery mode is used for controlling and reducing the speed of the vehicle, so that the kinetic energy originally used for generating heat by friction is recovered and then stored in an electric energy mode to be used by the vehicle, and the energy consumption of the whole vehicle is reduced. When the vehicle is running at low speed, a driver only needs to slightly step on a brake pedal, the vehicle can obviously decelerate, the deceleration generally floats up and down at 0.15g, at the moment, even if the braking force is completely provided by a mechanical braking system, the rust on the brake disc can not be removed by multiple times of braking, because the braking pressure is low (the lower pressure in a pipeline can reach the required braking strength), the braking time is short (if the time is long, the vehicle can be braked and stopped), sufficient friction can not exist between the friction plate and the brake disc, and the rust on the brake disc can not be effectively removed. When the vehicle runs at high speed and a driver brakes, energy recovery can be intervened with recovery strength as large as possible, so that the braking force distributed to mechanical hydraulic braking is small, and similarly, the hydraulic pressure acting on the brake disc is small, and the corrosion on the brake disc can not be effectively removed. Under the condition that a vehicle normally runs, most braking conditions are below 0.3g of braking strength, and if the mechanical braking strength is required to reach a target value of 0.2g, the braking strength of the whole vehicle is required to reach 0.5g at least, and the working conditions are few. So far, once the brake disc has the corrosion to take place, no matter the new forms of energy vehicle that has energy recuperation is under low speed or telling down, all difficult thoroughly to clear away, especially park for a long time outdoors, have the vehicle of large tracts of land corrosion on the brake disc.
Referring to fig. 1, the present invention provides a control method for a vehicle energy recovery mode, which includes the steps of:
and S100, when the vehicle is in a stop/static state, collecting monitoring signal data, wherein in the embodiment of the invention, the monitoring signal data comprises but is not limited to brake opening degree signal data, time period signal data, brake strength signal data, gear shifting signal data, temperature and humidity data, air pressure data of the environment and the like of a user, and is used for judging the corrosion condition of the vehicle in the environment.
Referring to fig. 2, step S100 further includes:
step S111, obtaining brake opening signal data through a brake switch unit of the vehicle; in the embodiment of the invention, during the running process of the vehicle, a driver of the vehicle steps on a brake pedal, and when the vehicle decelerates and brakes, the vehicle control unit monitors the braking condition of the vehicle in real time through the brake switch unit. In an embodiment of the present invention, the brake switch unit is configured to determine whether the brake switch is in an ON position.
Step S112, calculating time period signal data according to the brake opening degree signal data; in the embodiment of the invention, the brake opening signal data are sent to a server of a vehicle control unit, and time period signal data of the time length of the vehicle in the P gear are calculated according to the brake opening signal and are used for obtaining stop time data of the vehicle. In the embodiment of the invention, the time period signal data comprises time signal data displayed on the instrument control unit and time data of the parking gear of the vehicle.
Step S113, transmitting the time period signal data to a vehicle control unit through a vehicle control local area network, and collecting the time period signal data as the monitoring signal data through the vehicle control unit;
s200, when the vehicle is started, comparing the monitoring signal data of the vehicle control unit with a preset derusting parameter threshold value, judging whether to enter a derusting mode, if so, entering the derusting mode after the vehicle runs, and monitoring the braking strength and the braking times of the vehicle in real time, otherwise, executing energy recovery after the vehicle runs. Presetting a vehicle derusting parameter threshold value, and establishing a derusting limit value database; in the embodiment of the invention, the derusting parameter threshold comprises a vehicle stopping time period, vehicle braking strength and vehicle braking times, and is used for establishing a nominal value in a derusting database. The preset derusting parameter threshold comprises a large amount of bench test data, whole vehicle anticorrosion test data and data of different friction plates and brake discs in combination under the working condition of covering the user vehicle. In the embodiment of the invention, the brake disc data comprises brake disc corrosion state data, brake strength data and brake frequency data, wherein the brake disc corrosion state data comprises temperature data, humidity data and time data, and the brake strength data comprises brake pressure data and vehicle deceleration data. The method is used for dynamically updating the database and realizing updating the vehicle derusting limitation database.
S300, after the vehicle braking strength and the vehicle braking frequency reach the preset derusting parameter threshold value condition, energy recovery is executed, monitoring signal data of the vehicle control unit are compared with the preset derusting parameter threshold value, whether the vehicle control unit enters a derusting mode or not is judged, if yes, the vehicle control unit enters the derusting mode, the vehicle control unit monitors the vehicle braking strength in real time, and if not, the energy recovery is executed after the vehicle runs. The vehicle braking times are monitored in real time through the following steps: obtaining the braking times of the vehicle in real time through a gear shifting control unit of the vehicle; the number of times of braking of the vehicle is transmitted to a vehicle control unit of the vehicle through a gear shifting control unit; and monitoring the braking times of the vehicle in real time through the vehicle control unit. The vehicle braking intensity comprises deceleration signal data and braking pressure; the deceleration signal data is acquired by the sensor unit of the vehicle being transmitted to a vehicle control unit; the brake pressure is obtained by the hydraulic brake unit of the vehicle being transmitted to a vehicle control unit. In an embodiment of the invention, the vehicle control unit monitors the signal data as a time period signal data of the vehicle in the P range position. In the embodiment of the invention, the time period signal data of the vehicle in the P gear position is compared with the vehicle stop time period reference data to judge whether to enter a rust removal mode, if the stop time of the vehicle reaches the threshold value in the rust removal limit value database, the vehicle enters the rust removal mode after running, and the vehicle control unit simultaneously monitors the brake intensity and the brake times of the vehicle; and if the stopping time of the vehicle does not reach the threshold value in the derusting limit value database, executing an energy recovery mode after the vehicle runs. And is used for judging whether the vehicle enters a rust removal mode or not. In the embodiment of the invention, a controller local area network acquires a signal of a P gear position of a vehicle and display time on an instrument control unit, so that the display time on the instrument control unit is sent to the controller local area network, and the vehicle control unit captures time signal data according to a preset frequency and compares the time signal data to obtain a time difference; in the embodiment of the invention, the time difference is the difference value between the vehicle brake stop time of the next stage and the vehicle brake stop time of the previous stage, and is used for judging the vehicle parking/rest time.
And S400, after the vehicle braking strength and the vehicle braking frequency reach the preset derusting parameter threshold value condition, performing energy recovery for realizing energy recovery work. In the embodiment of the invention, when the braking strength and the braking times of the vehicle reach the braking strength and the braking times under the condition of corrosion of the brake disc, the mechanical hydraulic braking system provides braking force which can just eliminate the corrosion on the brake disc, and the energy recovery system finishes the rust removal work and automatically switches to the energy recovery mode.
And S500, after the vehicle brake strength and the vehicle brake times reach the preset derusting parameter threshold value conditions, the vehicle control unit records the unfinished vehicle brake strength and the unfinished vehicle brake times and accumulates the vehicle brake strength and the vehicle brake times required by a derusting mode in the next stage. In the embodiment of the present invention, the recording of the unfinished braking strength and the unfinished braking times of the vehicle may also be finished by a hydraulic braking control unit.
S600, the vehicle enters a stop/static state again, whether the preset derusting parameter threshold is reached is judged again, if yes, energy recovery is executed, and if not, the next stage of cyclic judgment is carried out. In the embodiment of the invention, when the braking strength and the braking times of the vehicle do not reach the braking strength and the braking times under the condition of brake disc corrosion, the vehicle enters the vehicle stopping/static state again, and the vehicle control unit records the braking strength and the braking times of the unfinished vehicle, so that the unfinished braking strength and the unfinished braking times are added to the braking strength and the braking times required by the next derusting mode, the braking strength and the braking times required by each derusting mode are the sum of the braking strength and the braking times required by the current determination of the vehicle and the unfinished braking strength and the braking times in the last derusting mode, and the energy recovery work is further executed.
Referring to fig. 3, the present invention provides a system for controlling energy recovery mode of a vehicle, wherein the system 1 comprises: a data acquisition unit 101, a data presetting unit 200, a data processing unit 300 and an energy recovery unit 400. And the data acquisition unit 101 is arranged in the vehicle control unit and is used for acquiring monitoring signal data of the vehicle control unit. And the data presetting unit 200 is arranged in the data acquisition unit and is used for presetting the vehicle derusting parameter threshold. The data processing unit 300 comprises a derusting control unit 301, which is used for comparing the vehicle control unit monitoring signal data with the preset derusting parameter threshold value, judging whether to enter a derusting mode, if so, entering the derusting mode, and if not, the vehicle control unit monitors the vehicle braking strength in real time, and otherwise, executes energy recovery after the vehicle runs. And the energy recovery unit is used for executing energy recovery after the vehicle braking strength and the vehicle braking frequency reach the preset derusting parameter threshold value condition.
Referring to fig. 3 and 4, the control unit 400 includes a hydraulic brake unit 401, a brake switch unit 402, a sensor unit 403, a meter control unit 404, a shift control unit 405, a driving unit 406, and a power unit 407. And a hydraulic brake unit 401 disposed on the opposite side of the driving unit 406 and the power unit 407 for recording the braking strength and the braking frequency. And a brake switch unit 402 disposed at one side of the hydraulic brake unit 401 for providing the brake opening degree signal data. A sensor unit 403 provided at one side of the brake switch unit 402 for providing the deceleration signal data when the vehicle is braked. A meter control unit 404 disposed at one side of the sensor unit 403 for providing the time signal data. A shift control unit 405 provided at one side of the meter control unit 404 for providing the shift signal data.
Referring to fig. 4, 5 and 6, the sensor unit 403 includes a first sensor 403a, a second sensor 403b and a third sensor 403 c. The first sensor 403a is used to provide deceleration signal data when the vehicle is braking for the vehicle control unit to detect identification. The second sensor 403b is used to provide the atmospheric temperature signal data of the current environment in which the vehicle is located for detection and identification by the vehicle control unit. The third sensor 403c is used to provide data of the atmospheric humidity signal in the current environment of the vehicle for detection and identification by the vehicle control unit. In the embodiment of the present invention, the first sensor 403a is oppositely disposed between the driving unit 406 and the power unit 407, and between the brake switch unit and the meter control unit. The first sensor 403a includes an acceleration sensor 403a ' in the present embodiment, the second sensor 403b includes a temperature sensor 403b ' in the present embodiment, and the third sensor 403c includes an atmospheric humidity sensor 403c ' in the present embodiment.
Referring to fig. 4 and fig. 6, the driving unit 406 includes a motor controller 406a and a driving motor 406b, and the motor controller 406a is disposed in the driving unit 406. In the embodiment of the invention, the motor controller 406a performs information interaction with the vehicle control unit, and the motor controller 406a transmits signal data to the vehicle control unit and receives a command from the vehicle control unit to perform energy recovery.
Referring to fig. 4 and fig. 7, the power unit 407 includes a battery management system 407a and a power battery 407b, and the power unit 407 is disposed on one side of the driving unit 406. In the embodiment of the present invention, the battery management system 407a performs information interaction with the vehicle control unit, and the battery management system 407a transmits signal data to the vehicle control unit and receives a command from the vehicle control unit to perform energy recovery.
Referring to fig. 8, in an embodiment of the present invention, the present invention provides a vehicle energy recovery system device and a signal transmission path, including:
the hydraulic brake unit 401 is connected to the vehicle control unit via a vehicle controller area network, and the hydraulic brake unit 401 sends brake system hydraulic signal data to the vehicle control unit for providing brake pressure data. The brake switch unit 402 is disposed at one side of the hydraulic brake unit 401, and is connected to the vehicle control unit through a vehicle controller area network, and the brake switch unit 402 transmits brake opening degree signal data when the vehicle brakes to the vehicle control unit. The first sensor unit 403a is disposed at one side of the brake switch unit 402 and connected to the vehicle control unit through a vehicle controller area network, and the first sensor unit 403a transmits deceleration signal data at the time of braking of the vehicle to the vehicle control unit for providing braking strength data. The meter controller unit 404 is disposed at one side of the first sensor 403a, and is connected to the vehicle control unit through a vehicle controller area network, and the meter controller unit 404 transmits time signal data of the vehicle stop to the vehicle control unit. The gear shift control unit 405 is disposed at one side of the meter control unit 405 and connected to the vehicle control unit through a vehicle controller area network, and the gear shift control unit 405 is used to provide parking range signal data. The motor controller 406a is oppositely disposed between the brake switch unit 402 and the first sensor unit 403a, and is connected to the driving motor 406b such that signal data of the motor controller 406a is transmitted to the vehicle control unit through the vehicle control local area network. The battery management system 407b is oppositely disposed between the first sensor unit 403a and the meter control unit 404, and is connected to the power battery 407b, so that signal data of the battery management system 407b is transmitted to the vehicle control unit through the vehicle control local area network.
Referring to fig. 8 and 9, in an embodiment of the present invention, the present invention provides a method for controlling a vehicle energy recovery system, including the steps of:
step S101 is executed, the hydraulic brake unit 401, the brake unit 402, the first sensor 403a, the meter control unit 404, the gear shift control unit 405, the drive unit 406 and the power unit 407 transmit signal data transmitted by each unit to a vehicle control local area network according to a preset time period, the data acquisition unit 100 acquires the signal data transmitted by each unit, and real-time monitoring is performed according to the set time period, so that the brake disc corrosion condition is automatically identified; executing step S201, presetting a vehicle stop time period, vehicle brake pressure, vehicle deceleration and vehicle brake times by the data presetting unit 200, and establishing a derusting parameter threshold database; executing step 301, comparing the vehicle stop time signal data, the vehicle brake pressure signal data, the vehicle deceleration signal data and the vehicle brake frequency data monitored by the vehicle control unit with data in the derusting parameter threshold respectively by the derusting control unit 301, judging whether to enter a derusting mode, if the vehicle stop time signal data reaches the threshold in the derusting parameter threshold, entering the derusting mode after the vehicle runs, and if the vehicle stop time signal data does not reach the threshold in the derusting parameter threshold, entering the energy recovery unit 400 for energy recovery after the vehicle runs; after the vehicle continuously runs for a period of time, the vehicle control unit continuously monitors brake intensity data after a brake request sent by a user, after the brake intensity data and the brake frequency data under the condition of satisfying corrosion of a brake disc reach vehicle brake intensity signal data and vehicle brake frequency data in a derusting parameter threshold, the vehicle executes energy recovery work of the energy recovery unit 400, after the brake intensity data and the brake frequency data do not reach the conditions of the vehicle brake intensity signal data and the vehicle brake frequency data in the derusting parameter threshold, the vehicle enters a vehicle stopping/static state again, the vehicle control unit records the unfinished vehicle brake intensity data and the unfinished vehicle brake frequency data in the current stage and accumulates the unfinished vehicle brake intensity data and the unfinished vehicle brake frequency data in the next stage into the brake intensity data and the brake frequency data required by the derusting mode in the next stage, so that the brake intensity and the brake frequency required by the derusting mode at each time are the brake intensity and brake frequency required by judgment in the current stage of the vehicle The sum of the number of times of movement and the number of times of braking which is not completed in the last stage of rust removal mode further realizes the energy recovery work.
Referring to fig. 10, in another embodiment of the present invention, the present invention provides a vehicle energy recovery control device and a signal transmission path, including:
the hydraulic brake unit 401 is connected to the vehicle control unit via a vehicle controller area network, and the hydraulic brake unit 401 sends brake system hydraulic signal data to the vehicle control unit for providing brake pressure data. The brake switch unit 402 is disposed at one side of the hydraulic brake unit 401, and is connected to the vehicle control unit through a vehicle controller area network, and the brake switch unit 402 transmits a brake pedal opening degree signal data at the time of braking the vehicle to the vehicle control unit. The second sensor unit 403b is disposed at one side of the hydraulic brake unit 401, is oppositely disposed between the hydraulic brake unit 401 and the brake switch unit 402, and is connected to the vehicle control unit through the vehicle controller area network, and the second sensor unit 403b transmits the atmospheric temperature signal data generated when the vehicle brakes to the vehicle control unit for providing the temperature data. The third sensor unit 403c is disposed at one side of the brake switch unit 401, is oppositely disposed between the brake switch unit 401 and the first sensor unit 403a, and is connected to the vehicle control unit through the vehicle controller area network, and the second sensor unit 403b transmits the atmospheric temperature signal data generated when the vehicle is braked to the vehicle control unit for providing the temperature data. The meter controller unit 404 is disposed at one side of the first sensor 403a, and is connected to the vehicle control unit through a vehicle controller area network, and the meter controller unit 404 transmits time signal data of the vehicle stop to the vehicle control unit. The gear shift control unit 405 is disposed at one side of the meter control unit 405 and connected to the vehicle control unit through a vehicle controller area network, and the gear shift control unit 405 is used to provide parking range signal data. The motor controller 406a is disposed between the meter control unit 404 and the shift control unit 405, and is connected to the driving motor 406b such that signal data of the motor controller 406a is transmitted to the vehicle control unit through the vehicle control local area network. The battery management system 407b is disposed between the shift control unit 405 and the controller area network, and is connected to the power battery 407b, so that signal data of the battery management system 407b is transmitted to the vehicle control unit through the vehicle control area network.
Referring to fig. 10 and 11, in another embodiment of the present invention, a method for controlling a vehicle energy recovery system includes:
step S102, a hydraulic brake unit 401, a brake unit 402, a first sensor 403a, a second sensor 403b, a third sensor 403c, an instrument control unit 404, a gear shift control unit 405, a drive unit 406 and a power unit 407 transmit signal data transmitted by each unit to a vehicle control local area network according to a preset time period, and the vehicle control unit acquires the signal data transmitted by each unit and carries out real-time monitoring according to the set time period; step S202, a data presetting unit 200 presets an atmospheric temperature value, a humidity value, a vehicle stop time period, vehicle brake pressure, vehicle deceleration and vehicle brake times, and establishes a derusting limit value database; step S302, the derusting control unit 301 compares the atmospheric temperature signal data, the humidity signal data, the vehicle stop time signal data, the vehicle brake pressure signal data, the vehicle deceleration signal data and the vehicle brake frequency data monitored by the vehicle control unit with threshold data in a derusting parameter threshold respectively to judge whether to enter a derusting mode, and step S402, if the vehicle stop time signal data reaches the threshold in the derusting parameter threshold, the vehicle enters the derusting mode after running, so that the brake strength reaches the maximum value, the mechanical brake system outputs the maximum pressure value to act on the friction plate, and the rust phenomenon on the brake disc is effectively removed. If the vehicle stop time signal data does not reach the threshold value in the derusting parameter threshold value, the vehicle enters the energy recovery unit 400 for energy recovery after running; after the vehicle continuously runs for a period of time, the vehicle control unit continuously monitors the brake intensity data after the brake request sent by the user, and executes step S502, and after the brake intensity data and the brake frequency data meeting the situation that the brake disc is corroded reach the vehicle brake intensity signal data and the vehicle brake frequency data in the derusting parameter threshold, the vehicle executes the energy recovery work of the energy recovery unit 400; and after the brake intensity data and the brake frequency data do not reach the vehicle brake intensity signal data and the vehicle brake frequency data in the derusting parameter threshold value, executing a step S602, enabling the vehicle to enter a vehicle stop/rest state again, and enabling the vehicle control unit to record the unfinished vehicle brake intensity data and the unfinished vehicle brake frequency data in the current stage and accumulate the unfinished vehicle brake intensity data and the unfinished vehicle brake frequency data in the next stage derusting mode into the brake intensity data and the brake frequency data required in the next stage derusting mode, so that the brake intensity and the brake frequency required in each derusting mode are the sum of the brake intensity and the brake frequency required by judgment in the current stage of the vehicle and the unfinished brake intensity and the brake frequency in the last stage derusting mode, full friction between the friction plate and the brake disc is realized, stable brake force is output, and energy recovery work is further realized.
In summary, the present invention provides a method for recovering energy of a vehicle, the method comprising: collecting monitoring signal data of a vehicle control unit; presetting a vehicle derusting parameter threshold value, and establishing a derusting reference database; comparing the monitoring signal data of the vehicle control unit with the preset derusting parameter threshold value, judging whether to enter a derusting mode, if so, entering the derusting mode, monitoring the braking intensity of the vehicle in real time by the vehicle control unit, and otherwise, executing energy recovery after the vehicle runs; and after the vehicle braking strength and the vehicle braking frequency reach the preset derusting parameter threshold value condition, executing energy recovery. After the vehicle brake strength and the vehicle brake times are not met and reach the preset derusting parameter threshold value condition, the vehicle control unit records the unfinished vehicle brake strength and the unfinished vehicle brake times, accumulates the vehicle brake strength and the vehicle brake times required by a derusting mode in the next stage, and enters a vehicle parking/static state again, so that signal data in the vehicle control unit is subjected to cyclic and ordered iterative refreshing, the derusting control logic is updated in real time according to the current vehicle condition, the rust self-detection of a vehicle brake disc is effectively finished, the automatic derusting is realized, the self-maintenance of the vehicle is enhanced, the disc scratching problem is effectively eliminated, a circle of groove formed on the working surface of the brake disc is reduced, the jitter problem is further effectively eliminated, the bonding effect of a friction block and the brake disc is enhanced, and the disc brushing sound problem is further effectively eliminated, the driving force of the vehicle is enhanced, the running energy consumption of the whole vehicle is reduced, and the intelligent energy recovery of the vehicle is realized. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A vehicle energy recovery mode control method, characterized by comprising:
when the vehicle is in a stop/static state, collecting monitoring signal data;
when a vehicle is started, comparing the monitoring signal data of the vehicle control unit with a preset derusting parameter threshold value, judging whether to enter a derusting mode, if so, entering the derusting mode after the vehicle runs, and monitoring the braking strength and the braking times of the vehicle in real time, otherwise, executing energy recovery after the vehicle runs;
and after the vehicle braking strength and the vehicle braking frequency reach the preset derusting parameter threshold value condition, executing energy recovery.
2. A vehicle energy recovery mode control method as claimed in claim 1, characterized in that the method further comprises: and the vehicle enters a stop/static state again, whether the preset derusting parameter threshold is reached is judged again, if yes, energy recovery is executed, and if not, the next stage of cyclic judgment is carried out.
3. The vehicle energy recovery mode control method according to claim 1, further comprising presetting a vehicle rust removal parameter threshold value, wherein the rust removal parameter threshold value comprises vehicle stop time period signal data, vehicle brake strength and vehicle brake times.
4. A vehicle energy recovery mode control method as claimed in claim 3, wherein the step of presetting a vehicle rust removal parameter threshold value includes:
obtaining brake disc data and friction plate data under each vehicle condition of the vehicle;
and establishing the derusting parameter threshold database according to the brake disc data and the friction plate data.
5. A vehicle energy recovery mode control method as set forth in claim 1 wherein said step of collecting supervisory signal data includes:
obtaining brake opening degree signal data;
calculating time period signal data according to the brake opening degree signal data;
and taking the time period signal data as the monitoring signal data.
6. A vehicle energy recovery mode control system, characterized by comprising,
the data acquisition unit is used for acquiring monitoring signal data when the vehicle is in a stop/static state;
the data presetting unit is used for comparing the monitoring signal data of the vehicle control unit with a preset derusting parameter threshold value when the vehicle is started, judging whether to enter a derusting mode, if so, entering the derusting mode after the vehicle runs, and monitoring the braking strength and the braking times of the vehicle in real time, otherwise, executing energy recovery after the vehicle runs;
and the data processing unit is used for executing energy recovery after the vehicle braking strength and the vehicle braking frequency reach the preset derusting parameter threshold value condition.
7. The vehicle energy recovery mode control system of claim 6, wherein the data processing unit comprises a de-rusting control unit for providing the vehicle braking times monitored in real time.
8. A vehicle energy recovery mode control system according to claim 6, characterized in that said system further comprises an energy recovery unit comprising,
the hydraulic braking unit is used for recording the vehicle braking strength and the vehicle braking times, wherein the vehicle braking strength comprises braking pressure data and deceleration signal data;
a sensor unit for providing said deceleration signal data when the vehicle is braking.
9. A vehicle energy recovery mode control apparatus comprising a processor coupled to a memory, the memory storing program instructions that, when executed by the processor, implement the method of any of claims 1 to 5.
10. A computer-readable storage medium, characterized by comprising a program which, when run on a computer, causes the computer to perform the method of any one of claims 1 to 5.
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| CN202110426452.6A CN113071325B (en) | 2021-04-20 | 2021-04-20 | Vehicle energy recovery mode control method, system, equipment and storage medium |
| PCT/CN2022/084788 WO2022222734A1 (en) | 2021-04-20 | 2022-04-01 | Vehicle energy recovery mode control method, system and device, and storage medium |
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| CN202110426452.6A CN113071325B (en) | 2021-04-20 | 2021-04-20 | Vehicle energy recovery mode control method, system, equipment and storage medium |
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| CN113071325A (en) | 2021-07-06 |
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