CN116279201A - Intelligent cabin system and automobile - Google Patents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
- B60R16/0234—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions related to maintenance or repairing of vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
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- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
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Abstract
The invention provides an intelligent cabin system and an automobile, wherein the system comprises an intelligent cabin domain control module, a chassis multifunctional control module, a chassis information acquisition module and an intelligent cabin interaction module; the intelligent cabin controller is respectively connected with the chassis multifunctional control module and the intelligent cabin interaction module; the chassis multifunctional control module is connected with the chassis information acquisition module; the chassis multifunctional control module is used for realizing intelligent maintenance of a vehicle chassis system by setting a maintenance strategy according to the acquired information of the chassis information acquisition module and the mileage and the oil consumption provided by the intelligent cabin area control module, and realizing intelligent interaction of maintenance information through the intelligent cabin interaction module. Based on the system, an automobile is also provided. According to the intelligent cabin intelligent vehicle maintenance active reminding system, the intelligent cabin is integrated with the vehicle maintenance active reminding system, the real-time state monitoring of the vehicle is formed by utilizing the application ecology integrated by the intelligent cabin multifunctional module, and the optimal effect of intelligent interaction of people and vehicles is achieved by reminding a driver of maintenance information through multimode interaction.
Description
Technical Field
The invention belongs to the technical field of automobile integrated control, and particularly relates to an intelligent cabin system and an automobile.
Background
Commercial vehicles (Commercial Vehicle) are vehicles designed and technically characterized for transporting people and goods. The commercial vehicle comprises all cargo vehicles and more than 9 buses, and is divided into five types, namely a bus, a truck, a semi-trailer traction vehicle, a bus incomplete vehicle and a truck incomplete vehicle. Passenger cars (passenger vehicle) are automobiles designed and technically characterized mainly for carrying passengers and their carry-on luggage or temporary articles, and encompass cars, minibuses and light buses of not more than 9 seats. The passenger cars are subdivided into basic passenger cars (sedans), utility vehicles (MPV), sport Utility Vehicles (SUV), special passenger cars and crossover passenger cars.
At present, intelligent cabin systems of passenger cars are mature day by day, but commercial cars are completely different from passenger cars in terms of use conditions, road conditions, vehicle use and vehicle maintenance. The commercial vehicle is maintained by adopting time or constant mileage, and has the defects of complicated maintenance work, higher consumption cost and lower vehicle use rate, and along with the rise of modern logistics, the traditional maintenance mode can not meet the requirements of the times.
Disclosure of Invention
In order to solve the technical problems, the invention provides an intelligent cabin system and an automobile, which integrate the maintenance autonomous reminding function of the commercial vehicle and improve the adaptability of the commercial vehicle to modern logistics.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
an intelligent cockpit system comprising: the intelligent cabin domain control module, the chassis multifunctional control module, the chassis information acquisition module and the intelligent cabin interaction module;
the intelligent cabin controller is respectively in communication connection with the chassis multifunctional control module and the intelligent cabin interaction module; the chassis multifunctional control module is in communication connection with the chassis information acquisition module;
the chassis multifunctional control module judges the use status of the oil products, the filter element, the brake and the clutch according to the oil product temperature, the liquid level and the pressure, the wear information and the load information of the brake and the clutch, and combines the mileage and the oil consumption provided by the intelligent cabin area control module, and a maintenance strategy is set through the chassis multifunctional control module so as to realize the intelligent maintenance and intelligent reminding functions of a vehicle chassis system; and the intelligent cabin interaction module is used for realizing intelligent interaction of maintenance information.
Further, the chassis multifunctional control module is also connected with a triaxial acceleration sensor;
the chassis multifunctional control module calculates rolling resistance, air resistance, gradient resistance and acceleration resistance respectively by utilizing the sum of the resistance applied by the vehicle in the running process to be equal to the driving force;
the rolling resistance F f ＝0.0076+0.000056U a The method comprises the steps of carrying out a first treatment on the surface of the Wherein U is a The vehicle speed is the vehicle speed;
the air resistance
Wherein C is D Is the wind resistance coefficient; a is the cross-sectional area of the automobile;
the gradient resistance F i =mgsina; wherein m is the mass of the automobile; g is gravity acceleration;
the acceleration resistance F j ＝σma x The method comprises the steps of carrying out a first treatment on the surface of the Wherein sigma is the conversion coefficient of the rotating mass of the automobile; a, a x Acceleration in the horizontal direction of vehicle travel; a, a y Is the acceleration of the vehicle in the vertical direction of travel.
Further, the intelligent cabin area control module also outputs information of an engine model, an engine rotating speed, an engine torque, an engine economic area, a transmission model, a transmission gear transmission ratio, a vehicle speed, a drive axle speed ratio and a tire model to the chassis multifunctional control module; the chassis multifunctional control module calculates the current transmission gear ratio of the transmission; judging whether the current gear is in the universal characteristic economic region of the engine according to the current transmission ratio, the current engine torque and the vehicle speed; if not, reminding a driver to shift down or up to an economic zone gear under the current working condition;
Further, the intelligent cabin interaction module comprises a microphone sub-module, a multi-path camera sub-module, a man-machine interaction sub-module, a network management sub-module, a mobile phone communication sub-module, a full liquid crystal instrument sub-module, a HUD display sub-module and a central control multimedia sub-module;
the microphone submodule is connected with the intelligent cabin area control module and is used for outputting vehicle maintenance information for the voice of a driver and sending out an execution instruction of the driver;
the multi-path camera sub-module is connected with the intelligent cabin area control module and is used for monitoring the fatigue state of a driver and monitoring various positions outside the vehicle to realize 360-degree looking around.
The man-machine interaction submodule is connected with the intelligent cabin area control module and is used for controlling the intelligent cabin through multimode interaction of people and vehicles;
the network management submodule is connected with the intelligent cabin domain control module and is used for realizing the connection of the intelligent cabin with external communication and the background monitoring of big data;
the mobile phone communication submodule is connected with the intelligent cabin area control module and is used for receiving vehicle maintenance information pushed by the intelligent cabin;
the display sub-module is connected with the intelligent cabin area control module and is used for displaying driving key information, vehicle key information and vehicle maintenance information and state reminding pushed by the intelligent cabin;
The central control multimedia sub-module is used for displaying the forward route of the emergency maintenance or nearby maintenance high-quality service station and displaying multimedia information.
Further, the chassis information acquisition module comprises an engine oil level temperature sensor, a cooling liquid level sensor, a steering liquid level and oil level sensor, a gearbox oil temperature sensor, a drive axle oil temperature sensor, a clutch wear sensor, a brake shoe wear sensor, an air inlet negative pressure sensor and a diesel negative pressure differential pressure sensor;
the engine oil liquid level temperature sensor is used for acquiring engine oil liquid level temperature information;
the cooling liquid level sensor is used for acquiring cooling liquid level information;
the steering liquid level oil level sensor is used for acquiring steering liquid level oil level information;
the gearbox oil temperature sensor is used for acquiring gearbox oil temperature information;
the drive axle oil temperature sensor is used for acquiring drive axle oil temperature information;
the clutch wear sensor is used for acquiring clutch wear information;
the brake shoe wear sensor is used for acquiring brake shoe wear information;
the negative pressure sensor is used for acquiring pressure values of an air inlet end and an air outlet end respectively;
the diesel negative pressure differential pressure sensor is used for acquiring diesel negative pressure differential pressure information.
Further, the maintenance strategies set by the chassis multifunctional control module comprise an oil quality maintenance strategy and a service life maintenance strategy;
the oil quality maintenance strategy comprises that an engine oil liquid level temperature sensor is used for converting the engine oil liquid level into a first voltage signal and outputting the first voltage signal to a multifunctional chassis control module; the chassis multifunctional control module judges that the liquid level of the engine oil is in a liquid level threshold range and the duration exceeds a time threshold according to the first voltage signal, namely, judges that the liquid level is absent or the liquid level is too high, outputs the fault to the intelligent cabin area control module through the vehicle body CAN, and then sends fault information to a driver through the intelligent cabin interaction module;
or the engine oil liquid level temperature sensor converts the engine oil temperature into a second voltage signal and outputs the second voltage signal to the chassis multifunctional control module; the chassis multifunctional control module judges that the engine oil temperature is not in the temperature threshold range according to the second voltage signal, namely the engine oil temperature is over-high fault; the fault information is output to an intelligent cabin area control module through a vehicle body CAN, and then the fault information is sent to a driver through an intelligent cabin interaction module;
the service life maintenance strategy comprises the steps that the chassis multifunctional control module obtains engine oil maintenance parameters, calculates total maintenance coefficients according to the engine oil maintenance parameters, and sends maintenance information to a driver through the intelligent cabin interaction module according to the total maintenance coefficients.
Further, the maintenance strategy set by the chassis multifunctional control module also comprises a filter element service life maintenance strategy; the cartridge life maintenance strategy includes:
firstly, measuring an initial pressure value p of air inlet of a non-blocking filter element 0 ＝p Feeding in -p Out of ；
Gradually simulating the blocking condition of the air inlet filter element to obtain a pressure difference delta p; can meet the requirement of causing rapid increase of oil consumption under the rated working condition of the engineLarge outlet pressure p MAX The maximum differential pressure deltap MAX ＝p Feeding in -p MAX ；
The calculation method of the rest life is
When Δp=p 0 When the residual life is 1;
and according to the residual service life, the service life maintenance information of the filter element is sent to a driver through an intelligent cabin interaction module.
Further, the maintenance strategy set by the chassis multifunctional control module further comprises a clutch abrasion and service life prediction maintenance strategy; the clutch wear and life prediction maintenance strategy includes: the clutch abrasion loss signal is read according to the clutch abrasion displacement sensor and sent to the chassis multifunctional control module to calculate the residual abrasion loss of the clutch and the vehicle endurance mileage;
residual wear = 26mm-X; wherein X is a clutch position signal value; the residual life is
Range = remaining wear amount x average of the interval range; interval range = this secondary clutch position signal value corresponds to range-last clutch position signal value corresponds to range.
Further, the maintenance strategy set by the chassis multifunctional control module further comprises an oil liquid level maintenance strategy and a cooling liquid level maintenance strategy;
the liquid level maintenance strategy comprises an oil pressure value P measured by a steering oil level sensor Oil (oil) The method comprises the steps of carrying out a first treatment on the surface of the Obtaining a minimum scale value and a maximum scale value of a steering oil tank, and measuring a minimum oil pressure value P at the minimum scale value through a steering oil level sensor Oil MIN And the maximum oil pressure value P at the maximum scale value is measured by a steering oil level sensor Oil MAX The method comprises the steps of carrying out a first treatment on the surface of the If P Oil (oil) ≤P Oil MIN Or P Oil (oil) ≥P Oil MAX The oil level alarm information is sent out, and the oil level alarm information is sent to a driver through the intelligent cabin interaction module；
The coolant maintenance strategy includes a hydraulic pressure value P measured by a coolant level sensor Liquid and its preparation method The method comprises the steps of carrying out a first treatment on the surface of the Acquiring a minimum scale value and a maximum scale value of an expansion tank mark; measuring the minimum hydraulic pressure value P at the minimum scale value by a coolant liquid level sensor Liquid MIN And a maximum hydraulic pressure value P at the maximum scale value measured by the coolant liquid level sensor Liquid MAX The method comprises the steps of carrying out a first treatment on the surface of the If P Liquid and its preparation method ≤P Liquid MIN Or P Liquid and its preparation method ≥P Liquid MAX And sending out the cooling liquid level alarm information, and sending the cooling liquid level alarm information to a driver through the intelligent cabin interaction module.
The invention also provides an automobile, which comprises an intelligent cabin system.
The effects provided in the summary of the invention are merely effects of embodiments, not all effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
the invention provides an intelligent cabin system and an automobile, wherein the intelligent cabin system comprises an intelligent cabin domain control module, a chassis multifunctional control module, a chassis information acquisition module and an intelligent cabin interaction module; the intelligent cabin controller is respectively in communication connection with the chassis multifunctional control module and the intelligent cabin interaction module; the chassis multifunctional control module is in communication connection with the chassis information acquisition module; the chassis multifunctional control module judges the current use situation of the oil products, the filter elements, the brake and the clutch according to the oil product temperature, the liquid level and the pressure acquired by the chassis information acquisition module, the abrasion information and the load information of the brake and the clutch, and combines the mileage and the oil consumption provided by the intelligent cabin domain control module, and a maintenance strategy is set through the chassis multifunctional control module so as to realize the intelligent maintenance and intelligent reminding functions of a vehicle chassis system; and the intelligent cabin interaction module is used for realizing intelligent interaction of maintenance information. Based on the intelligent cabin system, the invention further provides an automobile. According to the intelligent cabin intelligent vehicle maintenance system, the intelligent cabin is integrated with the vehicle maintenance active reminding system, the real-time state monitoring of the vehicle is formed by utilizing the application ecology integrated by the intelligent cabin multifunctional module, the optimal use effect of intelligent interaction of the human and the vehicle is achieved by reminding a driver of the vehicle maintenance information through multimode interaction, the in-vehicle electronic system, the intelligent interface and the human-computer interaction are seamlessly combined, and the intelligent cabin intelligent vehicle maintenance system evolves from simple one-way interaction of the human and the computer to the perception-machine-human autonomous interaction.
Drawings
Fig. 1 is a schematic diagram of an intelligent cabin system connection according to embodiment 1 of the present invention;
fig. 2 is a flow chart of an intelligent cabin system proposed in embodiment 1 of the present invention, which relates to autonomous reminding of oil quality and life maintenance;
fig. 3 is a flow chart of an intelligent cabin system proposed in embodiment 1 of the present invention, which relates to autonomous reminding of filter element lifetime maintenance;
fig. 4 is a flow chart of an intelligent cabin system according to embodiment 1 of the present invention, which relates to autonomous reminding of wear maintenance;
fig. 5 is a flow chart of an intelligent cabin system provided in embodiment 1 of the invention, which relates to an autonomous reminding of oil liquid and cooling liquid level maintenance.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily obscure the present invention.
Example 1
The embodiment 1 of the invention provides an intelligent cabin system, which comprises an intelligent cabin domain control module, a chassis multifunctional control module, a chassis information acquisition module and an intelligent cabin interaction module;
the intelligent cabin controller is respectively in communication connection with the chassis multifunctional control module and the intelligent cabin interaction module; the chassis multifunctional control module is in communication connection with the chassis information acquisition module;
the chassis multifunctional control module judges the use status of the oil products, the filter element, the brake and the clutch according to the oil product temperature, the liquid level and the pressure acquired by the chassis information acquisition module, the wear information and the load information of the brake and the clutch, and combines the mileage and the oil consumption provided by the intelligent cabin domain control module, and a maintenance strategy is set through the chassis multifunctional control module so as to realize the intelligent maintenance and intelligent reminding functions of a vehicle chassis system; and the intelligent cabin interaction module is used for realizing intelligent interaction of maintenance information.
Fig. 1 is a schematic diagram of an intelligent cabin system connection according to embodiment 1 of the present invention;
the intelligent cabin domain control system comprises an intelligent cabin domain control module A1 for carrying each functional module; the chassis multifunctional control module A2 is connected with the intelligent cabin domain control module, is internally provided with a control strategy and an algorithm and is used for realizing the intelligent maintenance and intelligent reminding functions of a vehicle chassis system; the chassis information acquisition module B1 is connected with the chassis multifunctional control module A2 and is used for acquiring real-time information of vehicles such as oil liquid, filter element states and the like of various systems of the chassis; the central control multimedia sub-module B2 is connected with the intelligent cabin domain control module A1 and is used for displaying intelligent maintenance reminding information, entertainment multimedia information, navigation map information and touch instruction input; the HUD display sub-module B3 is connected with the intelligent cabin area control module A1 and is used for displaying key information of vehicle driving, intelligent maintenance and reminding; the full liquid crystal instrument sub-module B4 is connected with the intelligent cabin area control module A1 and is used for displaying vehicle driving information and intelligent maintenance and reminding information; the network communication sub-module B5 is connected with the intelligent cabin area control module A1 and is used for sending intelligent maintenance information, vehicle position, route and weight real-time information to the client mobile phone end and the fleet management end; the man-machine interaction sub-module B6 is connected with the intelligent cabin area control module A1 and is used for identifying faces, voices and gestures and realizing multimode interaction and control of the whole intelligent cabin system; the multi-path camera sub-module B7 is connected with the intelligent cabin area control sub-module A1 and is connected with the intelligent cabin area control module A1 and used for monitoring the state of a driver and monitoring all positions outside the vehicle so as to realize a 360-degree looking-around function; microphone submodule B8 connects intelligent cabin area control module A1, possesses directional pickup function, and the driver is used for shouting command or demand.
The chassis multifunctional control module A2 is internally provided with an intelligent maintenance control strategy and algorithm, receives and processes the temperature, the liquid level and the pressure of the oil product acquired by the chassis information acquisition module B1, judges the current use situation of the oil product, the filter element, the brake, the clutch and the like through the built-in control strategy by the abrasion information and the load information of the brake and the clutch, receives and processes the vehicle running mileage and hundred kilometer average oil consumption information provided by the intelligent cabin control module through the vehicle body CAN, and combines the built-in calculation algorithm and the judgment strategy to realize the maintenance life prediction and reminding functions of the product.
The chassis information acquisition module comprises an engine oil liquid level temperature sensor, a cooling liquid level sensor, a steering liquid level oil level sensor, a gearbox oil temperature sensor, a drive axle oil temperature sensor, a clutch wear sensor, a brake shoe wear sensor, an air inlet negative pressure sensor and a diesel negative pressure differential pressure sensor;
the engine oil liquid level temperature sensor is used for acquiring engine oil liquid level temperature information;
the cooling liquid level sensor is used for acquiring cooling liquid level information;
the steering liquid level and oil level sensor is used for acquiring steering liquid level and oil level information;
the gearbox oil temperature sensor is used for acquiring gearbox oil temperature information;
The drive axle oil temperature sensor is used for acquiring drive axle oil temperature information;
the clutch wear sensor is used for acquiring clutch wear information;
the brake shoe wear sensor is used for acquiring brake shoe wear information;
the negative pressure sensor is used for acquiring pressure values of an air inlet end and an air outlet end respectively;
the diesel negative pressure differential pressure sensor is used for acquiring diesel negative pressure differential pressure information.
The chassis multifunctional control module A2 outputs the judged maintenance service life and reminding information to the intelligent cabin area control module A1 through the vehicle body CAN, displays the information on a full liquid crystal instrument, the HUD and the central control, reminds a customer through the voice function of the microphone sub-module, and simultaneously transmits the information to the customer mobile phone end and the fleet management system through the network communication sub-module
The intelligent cabin domain control module is internally provided with a GPS navigation module to synchronously recommend a nearby high-quality service station and a route to a client, and the client automatically selects whether to go to and which service station to go to; if the vehicle has a parking fault, the intelligent cabin area control module A1 timely transmits vehicle information and positions to the background management system through the network communication sub-module, and background service personnel can actively contact customers in time through the intelligent cabin and provide rescue services.
The intelligent maintenance and reminding function comprises a total vehicle weight calculation function, a gear shifting reminding function based on optimal oil consumption, an engine oil maintenance and reminding function, a transmission oil maintenance and reminding function, a drive axle oil maintenance and reminding function, a diesel rough filtration maintenance life prediction function, an air inlet filtration maintenance life prediction function, a urea filter element maintenance life prediction function, a clutch abrasion and life prediction function, a brake abrasion and life prediction function, a steering liquid oil level missing alarm function, a cooling liquid level missing alarm function and the like.
The chassis multifunctional control module is also connected with a triaxial acceleration sensor; the chassis multifunctional control module calculates and obtains a digital signal of the total weight of the vehicle through a triaxial acceleration sensor C11 and a built-in logic formula, outputs the digital signal to the intelligent cabin area control module through a vehicle body CAN, and outputs the digital signal to the full liquid crystal instrument and the central control display through the intelligent cabin area CAN; the digital signals are synchronously stored in the multifunctional control rice card of the chassis and used as auxiliary judgment digital signals of other maintenance autonomous reminding functions.
The chassis multifunctional control module calculates rolling resistance, air resistance, gradient resistance and acceleration resistance respectively by utilizing the sum of the resistance applied by the vehicle in the running process to be equal to the driving force;
Rolling resistance F f ＝0.0076+0.000056U a The method comprises the steps of carrying out a first treatment on the surface of the Wherein U is a The vehicle speed is the vehicle speed;
air resistance
Wherein C is D Is the wind resistance coefficient; a is the cross-sectional area of the automobile;
gradient resistance F i =mgsina; wherein m is the mass of the automobile, and the unit is kg; g is gravity acceleration;
acceleration resistance F j ＝σma x The method comprises the steps of carrying out a first treatment on the surface of the Wherein sigma is an automobile rotating mass conversion coefficient (obtained according to a transmission gear ratio and a rear axle gear ratio in a table look-up manner); a, a x Acceleration in the horizontal direction of vehicle travel in m/s 2 ；a y Is the acceleration of the vehicle in the vertical direction of travel.
Based on the gear shifting reminding function of the optimal oil consumption, the intelligent cabin area control module A1 outputs information of an engine model, an engine rotating speed, an engine torque, an engine economic area, a transmission model, a transmission gear transmission ratio, a vehicle speed, a drive axle speed ratio and a tire model to the chassis multifunctional control module A2 through the vehicle body CAN, the chassis multifunctional control module A2 calculates the current transmission ratio according to a built-in logic algorithm, calculates the current transmission gear by looking up a table, and continuously and circularly judges whether the current gear is in the universal characteristic economic area of the engine or not by combining the current engine torque and the vehicle speed. If yes, not reminding the driver; if not, reminding the driver to shift down or up to the economic zone gear under the current working condition. The calculation process is as follows:
Fig. 2 is a flow chart of an intelligent cabin system proposed in embodiment 1 of the present invention, which relates to autonomous reminding of oil quality and life maintenance;
the oil quality maintenance strategy comprises that an engine oil liquid level temperature sensor is used for converting the engine oil liquid level into a first voltage signal and outputting the first voltage signal to a chassis multifunctional control module; the chassis multifunctional control module judges that the liquid level of the engine oil is in a liquid level threshold range and the duration exceeds a time threshold according to the first voltage signal, namely, judges that the liquid level is absent or the liquid level is too high, outputs the fault to the intelligent cabin area control module through the vehicle body CAN, and then sends fault information to a driver through the intelligent cabin interaction module;
or the engine oil liquid level temperature sensor converts the engine oil temperature into a second voltage signal and outputs the second voltage signal to the chassis multifunctional control module; the chassis multifunctional control module judges that the engine oil temperature is not in the temperature threshold range according to the second voltage signal, namely the engine oil temperature is over-high fault; the fault information is output to an intelligent cabin area control module through a vehicle body CAN, and then the fault information is sent to a driver through an intelligent cabin interaction module;
the service life maintenance strategy comprises the steps that the chassis multifunctional control module obtains engine oil maintenance parameters, calculates total maintenance coefficients according to the engine oil maintenance parameters, and sends maintenance information to a driver through the intelligent cabin interaction module according to the total maintenance coefficients.
The engine oil maintenance and reminding function is that the engine oil level temperature sensor C1 integrates a level sensor for measuring the engine oil level and a temperature sensor for measuring the engine oil temperature.
The engine oil liquid level value with the engine oil liquid level reminding function is processed by an internal integrated electronic analysis device of a liquid level sensor and then is converted into a voltage signal to be output to a chassis multifunctional control module A2, the chassis multifunctional control module A2 converts the voltage signal into a digital signal through an AD conversion function sub-module and stores the digital signal into an EEPROM, rationality judgment is carried out on the calculated engine oil liquid level, whether the engine oil liquid level is within a certain threshold range or not is judged, the duration accumulated time exceeds a certain time threshold value CAN be judged, the liquid level deficiency or overhigh fault CAN be judged, the engine oil liquid level is output to an intelligent cabin domain controller A1 through a vehicle body CAN, and then the intelligent cabin CAN is output to a HUD, an instrument, a central control text display and a microphone sub-module to remind a driver through voice; otherwise, the system has no fault and does not remind.
The engine oil temperature value with the engine oil temperature reminding function is processed by an internal integrated electronic analysis device of an engine oil temperature sensor and then is converted into a voltage signal to be output to a chassis multifunctional control module A2, the chassis multifunctional control module A2 converts the voltage signal into a digital signal through an AD conversion function sub-module and stores the digital signal into an EEPROM, rationality judgment is carried out on the calculated engine oil temperature, whether the engine oil liquid level is in a certain threshold range is judged, if so, no fault exists, and no reminding is carried out; otherwise, the fault that the engine oil temperature is too high CAN be judged, the engine oil is output to the intelligent cabin area controller A1 through the automobile body CAN, and then the engine oil is output to the HUD, the instrument and the central control text display prompt and microphone submodule voice prompt driver through the intelligent cabin CAN.
The engine oil maintenance function, namely the engine oil life prediction, is realized by the built-in logic algorithm of the chassis multifunctional control module A2. The engine running mileage, running time and hundred kilometers average oil consumption in the engine oil maintenance parameters are output to a chassis multifunctional control module A2 by an intelligent cabin area controller A1 through a vehicle body CAN and stored in an EEPROM; the engine oil level and the engine oil temperature in the engine oil maintenance parameters are respectively provided by the engine oil level sensor and the engine oil temperature sensor and stored in the EEPROM.
The chassis multifunctional control module A2 calculates and obtains basic engine oil maintenance coefficients based on the operation mileage and the operation time according to the operation mileage and the operation time of the vehicle respectively and stores the basic engine oil maintenance coefficients into the EEPROM;
calculating a fuel consumption correction coefficient according to the average fuel consumption of the vehicle in hundred kilometers and storing the fuel consumption correction coefficient into an EEPROM;
calculating an engine oil temperature correction coefficient according to the engine oil temperature signal and storing the engine oil temperature correction coefficient into an EEPROM;
calculating an engine oil liquid level correction coefficient according to the engine oil liquid level signal and storing the engine oil liquid level correction coefficient into an EEPROM;
calculating a correction maintenance coefficient based on the vehicle running mileage according to the product of the vehicle running mileage basic coefficient, the engine hundred kilometer average oil consumption correction coefficient, the engine oil temperature correction coefficient and the engine oil liquid level correction coefficient;
Calculating a correction maintenance coefficient based on the vehicle running time according to the product of the vehicle running time basic coefficient, the engine hundred kilometer average oil consumption correction coefficient, the engine oil temperature correction coefficient and the engine oil liquid level correction coefficient;
the method comprises the steps of defining the maximum value of an engine oil liquid level maintenance coefficient, an engine oil temperature maintenance coefficient, a vehicle running mileage-based correction coefficient and a vehicle running time-based correction coefficient as a total maintenance coefficient, determining the quality degradation degree of engine oil by the total maintenance coefficient, and taking the difference value of the product of the total maintenance coefficient, the maintenance period mileage and the maintenance period time subtracted by the maintenance period mileage as the residual maintenance mileage and the residual maintenance time; the chassis multifunctional control module A2 identifies the replacement of engine oil and an engine oil filter core when the value of the engine oil liquid level is set by EOL and is increased to more than 95 percent from 0, stores the maintenance mileage and the maintenance time into the EEPROM, resets an engine oil maintenance mark, and starts calculation of the next period.
When the total maintenance coefficient is judged to be smaller than or equal to a first-level preset threshold value of 0.9, the chassis multifunctional control module A2 judges that engine oil is normal, does not give an alarm, and can manually or orally inquire the remaining maintenance mileage and the remaining maintenance time;
When the total maintenance coefficient is judged to be larger than the first-level preset threshold value 0.9 and smaller than the second-level preset threshold value 1.1, the chassis multifunctional control module A2 judges that the engine oil is abnormal and needs to be maintained as soon as possible, and sends signals to the instrument, the HUD, the central control and the microphone through the vehicle body CAN and converts the signals into 'the engine oil is abnormal and needs to be maintained as soon as possible', and the text display reminding and the voice reminding are carried out on the residual maintenance mileage and the residual maintenance time of the driver;
when the total maintenance coefficient is greater than or equal to a second-level preset threshold value 1.1, the chassis multifunctional control module A2 judges that engine oil is abnormal and needs to be maintained immediately, signals are sent to the instrument, the HUD, the central control and the microphone through the vehicle body CAN, AD is converted into engine oil abnormality and needs to be maintained immediately, and a text display prompt and a voice prompt driver prompt the immediate maintenance.
Gearbox oil maintenance and overtemperature reminding function, namely predicting the service life of gearbox oil, and calculating the overtemperature reminding function of gearbox oil by a gearbox oil temperature sensor.
The gearbox oil temperature value with the gearbox oil temperature overtemperature reminding function is processed by an internal integrated electronic analysis device of the gearbox oil temperature sensor and then is converted into a voltage signal to be output to a chassis multifunctional control module A2, the chassis multifunctional control module A2 converts the voltage signal into a digital signal through an AD conversion function sub-module and stores the digital signal into an EEPROM, and the calculated gearbox oil temperature and overtemperature duration are reasonably judged;
Judging that the temperature of the gearbox oil is less than 120 ℃, and if the gearbox oil is not faulty, not reminding; and judging that the temperature of the gearbox oil is greater than or equal to 120 ℃ and less than 140 ℃ and the duration exceeds 30 minutes, or that the temperature of the gearbox oil is greater than or equal to 140 ℃, judging that the temperature of the gearbox oil exceeds the temperature of the gearbox, immediately activating an overtemperature alarm, outputting the overtemperature alarm to an intelligent cabin domain controller A1 by a chassis multifunctional control module A2 through a vehicle body CAN, and outputting the overtemperature alarm to a HUD, an instrument, a central control text display prompt and a microphone submodule voice prompt to a driver by the intelligent cabin CAN.
And a logic algorithm is arranged in the chassis multifunctional control module A2 to obtain the maintenance parameters of the gearbox oil. The vehicle running mileage, running time and hundred kilometers average oil consumption in the gearbox oil maintenance parameters are output to a chassis multifunctional control module A2 by an intelligent cabin area controller A1 through a vehicle body CAN and stored in an EEPROM; the transmission oil temperature in the transmission oil maintenance parameter is provided by a transmission oil temperature sensor and stored to the EEPROM.
The chassis multifunctional control module A2 calculates and obtains basic gearbox oil maintenance coefficients based on the running mileage and the running time according to the running mileage and the running time of the vehicle respectively and stores the basic gearbox oil maintenance coefficients into the EEPROM;
Calculating a fuel consumption correction coefficient according to the average fuel consumption of the vehicle in hundred kilometers and storing the fuel consumption correction coefficient into an EEPROM;
calculating a transmission oil overtemperature Wen Xiuzheng coefficient according to the overtemperature duration time of the transmission oil temperature signal, and storing the coefficient into an EEPROM;
calculating a correction maintenance coefficient based on the vehicle running mileage according to the product of the vehicle running mileage basic coefficient, the vehicle hundred kilometers average fuel consumption correction coefficient and the gearbox oil super Wen Xiuzheng coefficient;
calculating a correction maintenance coefficient based on the vehicle running time according to the product of the vehicle running time basic coefficient, the vehicle hundred kilometer average fuel consumption correction coefficient and the gearbox oil super Wen Xiuzheng coefficient;
the method comprises the steps of defining the maximum value of a gearbox overtemperature correction maintenance coefficient, a correction coefficient based on vehicle running mileage and a correction coefficient based on vehicle running time as a total maintenance coefficient, determining the degradation degree of oil products of the gearbox by the total maintenance coefficient, and taking the difference value of the product of the total maintenance coefficient, the maintenance cycle mileage and the maintenance cycle time subtracted by the maintenance cycle mileage as the residual maintenance mileage and the residual maintenance time; the chassis multifunctional control module A2 identifies to replace the gearbox oil and the oil filter when the oil level value of the EOL is increased from 0 to more than 95%, stores the maintenance mileage and the maintenance time into the EEPROM, resets the engine oil maintenance mark, and starts calculation of the next period.
When the total maintenance coefficient is judged to be smaller than or equal to a first-level preset threshold value of 0.9, the chassis multifunctional control module A2 judges that the gearbox oil is normal, does not give an alarm, and can manually or orally inquire the remaining maintenance mileage and the remaining maintenance time;
when the total maintenance coefficient is judged to be greater than the first-level preset threshold value 0.9 and less than the second-level preset threshold value 1.1, the chassis multifunctional control module A2 judges that the abnormal maintenance of the gearbox oil is needed as soon as possible, and sends a signal to an instrument, a HUD (head-to-head) and a microphone through a vehicle body CAN (controller area network), and the signal is converted into 'the abnormal maintenance of the gearbox oil is needed as soon as possible', and the text display reminding and the voice reminding of the remaining maintenance mileage and the remaining maintenance time of a driver are carried out;
when the total maintenance coefficient is greater than or equal to a second-level preset threshold value 1.1, the chassis multifunctional control module A2 judges that the oil of the gearbox is abnormal and needs to be maintained immediately, signals are sent to the instrument, the HUD, the central control and the microphone through the vehicle body CAN and converted into 'the oil of the gearbox is abnormal and needs to be maintained immediately', and the text display prompt and the voice prompt driver prompt the maintenance immediately.
The drive axle oil maintenance and overtemperature reminding function is calculated by a drive axle oil temperature sensor.
The realization form and calculation logic of the drive axle oil maintenance and overtemperature reminding function are the same as those of the gearbox oil maintenance and overtemperature reminding function.
And the maintenance life prediction function of the diesel strainer is to collect fuel pressure difference values through differential pressure sensors arranged at an oil inlet and an oil outlet of the diesel strainer, and calculate the blocking state and the residual life of the diesel strainer by combining the rotation speed and the torque of the engine.
The oil pressure difference of the oil inlet and outlet of the fuel strainer is processed by an internal integrated electronic analysis device of a pressure difference sensor, converted into an oil pressure difference signal and output to a chassis multifunctional control module A2, and a built-in logic formula is as follows: vout= -0.1143×Δp+0.5; vout is the voltage of the output port of the sensor, and the unit is V; ΔP is the fuel pressure differential signal in kPa.
The method comprises the steps of calibrating the fuel pressure difference of an oil inlet and an oil return port of a fuel oil strainer under the condition that the engine is in a rated working condition, namely under the condition of adopting the rated engine speed and the rated engine torque through bench tests of the engine, the fuel oil system (comprising the fuel oil strainer) and the air inlet system (comprising the air filter), and obtaining the maximum pressure difference delta P capable of meeting the rated working condition of the engine MAX The pressure of the oil inlet of the fuel strainer is fixed under the fixed working condition, so the change of the pressure difference delta P is only equal to the pressure P of the oil outlet of the fuel strainer Out of Correlation, P Out of The variation of (a) is inversely related to the clogging condition of the fuel strainer, and DeltaP and P Out of The negative correlation is adopted, so that the delta P is positively correlated with the blocking condition of the fuel strainer, namely, the more serious the blocking condition of the fuel strainer is, the larger the delta P value is, and the set threshold value of the delta P value is the delta P calibrated by a bench test MAX . The residual life calculation logic of the fuel strainer arranged in the chassis multifunctional control module A2 is as follows: residual life = 100% - Δp/Δp MAX And the residual life digital signal is transmitted to the intelligent cabin controller A1 through the vehicle body CAN, and the driver is reminded through the instrument, the central control, the HUD digital display and the microphone submodule in a voice mode.
The disc multifunctional control module A2 judges that the residual life of the fuel oil strainer is more than or equal to 30 percent, and the fuel oil strainer has no fault and is not reminded, and only the residual life digital signal is displayed; judging that the residual life of the fuel oil strainer is less than 30% and more than 20%, turning on a yellow lamp of the fuel oil strainer, displaying and shouting the fuel oil strainer as soon as possible to remind a driver; and judging that the residual service life of the fuel strainer is less than 20%, lighting a red light on the fuel strainer, displaying and shouting the voice to remind a driver of the instant maintenance.
Fig. 3 is a flow chart of an intelligent cabin system proposed in embodiment 1 of the present invention, which relates to autonomous reminding of service life maintenance of a filter element; the maintenance strategy set by the chassis multifunctional control module also comprises a filter element service life maintenance strategy; the cartridge life maintenance strategy includes:
firstly, measuring an initial pressure value p of air inlet of a non-blocking filter element 0 ＝p Feeding in -p Out of The method comprises the steps of carrying out a first treatment on the surface of the Gradually simulating the blocking condition of the air inlet filter element to obtain a pressure difference delta p; the pressure p of the air outlet which causes the rapid increase of the oil consumption under the rated working condition of the engine can be met MAX The maximum differential pressure deltap MAX ＝p Feeding in -p MAX ；
The calculation method of the rest life is
When Δp=p 0 When the residual life is 1; and according to the residual service life, the service life maintenance information of the filter element is sent to a driver through the intelligent cabin interaction module.
And the maintenance life prediction function of the air inlet filter is to collect an air inlet pressure difference value through negative pressure sensors arranged at an air inlet end and an air outlet end of the air filter, and comprehensively calculate the blocking state and the residual life of the air filter by combining the rotating speed and the torque of the engine.
The pressure difference of the air inlet and outlet of the air inlet filter is processed by an internal integrated electronic analysis device of the negative pressure sensor, converted into a pressure difference signal and output to the chassis multifunctional control module A2.
The test calibration is carried out by the engine, the fuel system (comprising a fuel strainer) and the air intake system (comprising an air filter) under the condition that the engine is in the rated working condition, namely under the condition of adopting the rated rotation speed and the rated torque of the engine, according to P Feeding in ＝1Firstly, the initial pressure value P of inlet air of a new filter element (without blockage) is measured according to the ratio of (2 rho multiplied by V2) 0 ＝P Feeding in －P Out of Changing the air pressure difference of the air inlet and outlet of the air inlet filter gradually simulates the blocking condition of the air inlet filter element to obtain the air outlet pressure P which can meet the requirement of rapidly increasing the oil consumption of the engine under the rated working condition MAX I.e. the maximum differential pressure ΔP is measured MAX ＝P Feeding in －P MAX . Under the fixed working condition, the air inlet volume is constant, and the air inlet pressure is fixed because the air inlet of the air inlet filter has no filter element, so the change of the pressure difference delta P is only related to the pressure P of the air outlet of the air inlet filter, namely the blockage condition of the filter element. P (P) Out of The change of the (A) is inversely related to the blocking condition of the air filter, and the delta P is inversely related to the P, so that the delta P is positively related to the blocking condition of the air filter, namely, the more serious the blocking condition of the air filter is, the larger the delta P value is, and the set threshold value of the delta P value is the delta P calibrated by a bench test MAX . The residual life calculation logic of the intake air filter built in the chassis multifunctional control module A2 is as follows: residual lifetime = 100% - (Δp-P) 0 )/(ΔP MAX －P 0 ) X 100% (when Δp=p 0 And when the filter element is just replaced, the residual life is 100 percent, and the residual life digital signal is transmitted to the intelligent cabin area controller A1 through the vehicle body CAN, and the driver is reminded through the instrument, the central control, the HUD digital display and the microphone module.
The chassis multifunctional control module A2 judges that the residual life of the intake air filter is more than or equal to 20 percent, so that the chassis multifunctional control module is fault-free and not reminded, and only displays the residual life digital signal; judging that the residual life of the air inlet filter is less than 20% and more than 10%, and turning on a yellow lamp, displaying characters and shouting out 'maintenance as soon as possible' to remind a driver; and judging that the residual service life of the air inlet filter is less than 10%, lighting a red light of the air inlet filter, displaying characters and shouting the words to remind a driver of 'immediate maintenance'.
And the urea filter element maintenance life prediction function is used for reading a urea pressure value and establishing a urea pressure time value through a urea pressure sensor arranged at the output end of the urea filter element, and calculating the blocking condition and the residual life of the urea filter element.
The urea filter element pressure value is obtained by processing a voltage signal by an internal integrated electronic analysis device of a urea pressure sensor, converting the voltage signal into a urea pressure signal, outputting the urea pressure signal to a chassis multifunctional control module A2, and recording the time used in the process of establishing the urea injection pressure value to 9bar by the chassis multifunctional control module A2 to judge the blockage condition and the residual life of the urea filter element.
The test calibration of the engine, the fuel system, the air intake system, the post-treatment system and the tail gas detection device is carried out by a bench test, under the condition that the engine is in an idle working condition, namely the idle speed of the engine is adopted, firstly, the time t for the urea pressure to reach 9bar under the condition of a new urea filter element (without blockage) is measured 0 And at the moment, the tail gas detection device detects the quality of the tail gas, the urea pressure build-up time is changed to gradually simulate the blocking condition of a urea filter element, and the critical time t which can meet the alarm of the tail gas detection device under the idling working condition of the engine is obtained MAX The measured and set urea filter core life alarm threshold value is t calibrated by a bench test MAX . The residual life calculation logic of the urea filter element arranged in the chassis multifunctional control module A2 is as follows: residual lifetime = 100% - (t-t) 0 )/(t MAX －t 0 ) X 100%, when t=t 0 When the urea filter element is replaced, the service life of the urea filter element is 100 percent. The residual life digital signals are transmitted to the intelligent cabin area controller A1 through the vehicle body CAN, and the driver is reminded through the instrument, the central control, the HUD digital display and the microphone module in a voice mode.
The chassis multifunctional control module A2 judges that the residual life of the urea filter element is more than or equal to 20 percent, and the urea filter element has no fault and is not reminded, and only the residual life digital signal is displayed; judging that the residual life of the urea filter element is less than 20% and more than 10%, lighting a yellow lamp on a mark of the urea filter element, displaying characters and shouting the text to remind a driver of maintenance as soon as possible; and judging that the residual service life of the urea filter element is less than 10%, lighting a red light on a mark of the urea filter element, displaying characters and shouting 'immediately maintaining' by voice to remind a driver.
Fig. 4 is a flow chart of an intelligent cabin system according to embodiment 1 of the present invention, which relates to autonomous reminding of wear maintenance;
the clutch wear and life prediction maintenance strategy includes: the clutch abrasion loss signal is read according to the clutch abrasion displacement sensor and sent to the chassis multifunctional control module to calculate the residual abrasion loss of the clutch and the vehicle endurance mileage;
residual wear = 26mm-X; wherein X is a clutch position signal value; the residual life is
Range = remaining wear amount x average of the interval range;
interval range = this secondary clutch position signal value corresponds to range-last clutch position signal value corresponds to range.
The clutch module abrasion and service life prediction function is to read a clutch module abrasion quantity signal according to a clutch module abrasion displacement sensing module and transmit the clutch module abrasion quantity signal to a chassis multifunctional control module A2, and further calculate the clutch module residual abrasion quantity and the vehicle endurance mileage.
The clutch module displacement sensing module reads an initial position signal when the whole vehicle is off line and stores the initial position signal into the EEPROM as a clutch module position initial value X 0 The method comprises the steps of carrying out a first treatment on the surface of the In the using process of the vehicle, the chassis multifunctional control module A2 after replacing the clutch module judges the initial value of the position after maintaining the clutch module according to the position signal X read by the displacement sensing module of the clutch module, wherein the judging condition is that the signal of the displacement sensing module of the clutch module is increased by more than 50 percent, the vehicle speed is more than 30km/h and no pedal signal of the clutch module exists, and the position signal of the clutch module at the moment is used as the initial value X after maintaining the clutch module 0 The method comprises the steps of carrying out a first treatment on the surface of the And when the abrasion loss of the clutch module is less than or equal to 50%, the clutch module is maintained, namely, the clutch module is replaced, and the chassis multifunctional control module A2 cannot automatically identify and update the maintenance initial value of the clutch module, so that the initial value of the clutch module is required to be corrected by manual software brushing.
The threshold value of the ultimate wear amount of the clutch module is 26mm, when the wear amount of the clutch module is less than or equal to 24mm, the trigger condition of the clutch module displacement sensing module for reading the wear signal of the clutch module is that each wear is 1mm, and then the electronic analysis device is integrated in the clutch module displacement sensing moduleAnd converting the voltage signal change value caused by the abrasion displacement of the clutch module into an abrasion loss signal of the clutch module, outputting the abrasion loss signal to the chassis multifunctional control module A2 and storing the abrasion loss signal into the EEPROM. The chassis multifunctional control module A2 calculates a primary clutch module position signal value X according to built-in logic 1 ……X 24 The interval driving mileage, the residual abrasion loss, the residual life and the endurance mileage are stored in an EEPROM;
the limit abrasion loss of the clutch module is 26mm, when the abrasion loss of the clutch module is 24mm, the vehicle can be allowed to continue to run for 1 ten thousand km, the triggering condition that the clutch module displacement sensing module reads the abrasion loss signal of the clutch module is 100km per running, and then the integrated electronic analysis device in the clutch module displacement sensing module processes the voltage signal change value caused by the abrasion loss displacement of the clutch module to convert the abrasion loss signal of the clutch module into a chassis multifunctional control module A2 and stores the chassis multifunctional control module A2 into the EEPROM. The chassis multifunctional control module A2 calculates a primary clutch module position signal value X according to built-in logic 25 ……X 125 The interval driving mileage, the residual abrasion loss, the residual life and the endurance mileage are stored in an EEPROM;
interval driving distance = driving distance corresponding to the position signal value of the clutch module at this time-driving distance corresponding to the position signal value of the clutch module at last time, residual abrasion loss = 26mm-X, residual life = (26 mm-X)/26 mm X100%, driving distance = residual abrasion loss X average value of interval driving distance;
the chassis multifunctional control module A2 judges that the residual life of the clutch module is more than 8 percent, namely the residual abrasion loss is more than 2mm, the clutch module has no fault and no reminding, and the instrument, the central control and the HUD display the residual life (percentage) and the endurance mileage of the clutch module; judging that the residual life of the clutch module is more than or equal to 8 percent and more than 4 percent, namely that the residual abrasion loss is more than or equal to 2mm and more than 1mm, turning on a yellow lamp of a abrasion mark lamp of the clutch module, displaying characters and shouting out as soon as possible to be maintained to remind a driver, and displaying the residual life (percentage) and the endurance mileage of the clutch module by using an instrument, a central control and a HUD; judging that the residual service life of the clutch module is less than or equal to 4%, namely the residual abrasion quantity is less than or equal to 1mm, lighting a red light of a clutch module abrasion sign lamp, displaying characters and shouting 'immediately maintenance' to remind a driver, and displaying the residual service life (percentage) of the clutch module by using an instrument, a central control and a HUD (head-to-foot) and the endurance mileage.
The brake module abrasion and service life prediction function is that an EBS system with a friction plate abrasion control function and a chassis multifunctional control module A2 are transmitted to the brake module abrasion displacement sensing module according to the brake module abrasion quantity signal, the EBS control system finally realizes the uniform and synchronous friction of the brake shoe plates of each bridge through braking force distribution, and the chassis multifunctional control module A2 further calculates the residual abrasion quantity of the brake module and the vehicle endurance mileage.
The brake module abrasion displacement sensing module reads an initial position signal when the whole vehicle is off line and stores the initial position signal into an EEPROM (electrically erasable programmable read Only memory) as a brake module position initial value X 0 The method comprises the steps of carrying out a first treatment on the surface of the In the using process of the vehicle, the chassis multifunctional control module A2 after replacing the brake module judges the initial value of the position after maintaining the brake module according to the position signal X read by the brake module abrasion displacement sensing module, wherein the judging condition is that the brake module abrasion displacement sensing module signal is increased by more than 50 percent, the vehicle speed is more than 30km/h and no brake pedal signal exists, and the brake module position signal at the moment is used as the initial value X after maintaining the brake module 0 The method comprises the steps of carrying out a first treatment on the surface of the Preferably, when the abrasion loss of the brake module is less than or equal to 50%, the maintenance of the brake module, namely the replacement of the brake module, and if the chassis multifunctional control module A2 cannot autonomously identify and update the maintenance initial value of the brake module, the initial value of the brake module needs to be corrected by manual software brushing.
The brake module abrasion displacement sensing modules installed on the front axle, the middle axle and the rear axle measure the abrasion quantity signals of the brake modules in real time, the signals are transmitted to the EBS system with the friction plate abrasion control function through the chassis CAN line, the brake modules of all the axles are uniformly and synchronously abraded through the brake force distribution of the EBS system, and the purposes of maintaining the brake modules of all the axles at one time in a maintenance station, improving the utilization rate of the brake modules, reducing the number of times of entering the station and improving the attendance rate of vehicles are achieved.
The threshold value of the ultimate wear amount of the brake module is 18mm, when the wear amount of the brake module is less than or equal to 15mm, the trigger condition of the brake module wear displacement sensing module for measuring the wear signal of the brake module is that each wear is 1mm, and then an electronic analysis device is integrated in the brake module wear displacement sensing module for processing the causesThe voltage signal change value caused by the abrasion displacement of the movable module is converted into the abrasion loss signal of the braking module, and the abrasion loss signal is output to the chassis multifunctional control module A2 and stored in the EEPROM. The chassis multifunctional control module A2 calculates a primary clutch module position signal value X according to built-in logic 1 ……X 25 The interval driving mileage, the residual abrasion loss, the residual life and the endurance mileage are stored in an EEPROM;
when the limit abrasion loss of the brake module is 18mm and the abrasion loss of the brake module is 15mm, the vehicle can continue to travel for 5000km, the trigger condition of the brake module abrasion displacement sensing module for measuring the abrasion loss signal of the brake module is that every travel is 100km, and then an integrated electronic analysis device in the brake module abrasion displacement sensing module processes the voltage signal change value caused by the abrasion loss displacement of the brake module to convert the abrasion loss signal of the brake module into a chassis multifunctional control module A2 and stores the chassis multifunctional control module A2 into an EEPROM. The chassis multifunctional control module A2 calculates a position signal value X of the primary braking module according to built-in logic 16 ……X 66 The interval driving mileage, the residual abrasion loss, the residual life and the endurance mileage are stored in an EEPROM;
interval driving distance = driving distance corresponding to the position signal value of the braking module at this time-last driving distance corresponding to the position signal value of the braking module at last time, residual abrasion loss = 18mm-X, residual life = (18 mm-X)/18 mm X100%, driving distance = residual abrasion loss X average value of interval driving distance;
the chassis multifunctional control module A2 judges that the residual service life of the braking module is more than 30 percent, namely the residual abrasion loss is more than 3mm, the chassis multifunctional control module A2 has no fault and no reminding, and meters, central control and HUDs display the residual service life (percentage) and the endurance mileage of the braking module; judging that the residual life of the brake module is more than or equal to 30 percent and more than 20 percent, namely that the residual abrasion loss is more than or equal to 3mm and more than 2mm, turning on a yellow lamp of a abrasion mark lamp of the brake module, displaying characters and shouting out as soon as possible to remind a driver, and displaying the residual life (percentage) and the endurance mileage of the brake module by using an instrument, a central control and a HUD; judging that the residual service life of the abrasion of the brake module is less than 20 percent, namely the residual abrasion quantity is less than 2mm, lighting a red light of an abrasion sign lamp of the brake module, displaying characters and shouting 'immediately maintaining' to remind a driver, and displaying the residual service life (percentage) of the brake module by using an instrument, a central control and a HUD (head-to-foot) and the endurance mileage.
Fig. 5 is a flow chart of an intelligent cabin system provided in embodiment 1 of the invention, which relates to an autonomous reminding of oil liquid and cooling liquid level maintenance.
The level maintenance strategy includes an oil pressure value P measured by a steering oil level sensor Oil (oil) The method comprises the steps of carrying out a first treatment on the surface of the Obtaining a minimum scale value and a maximum scale value of a steering oil tank, and measuring a minimum oil pressure value P at the minimum scale value through a steering oil level sensor Oil MIN And the maximum oil pressure value P at the maximum scale value is measured by a steering oil level sensor Oil MAX The method comprises the steps of carrying out a first treatment on the surface of the If P Oil (oil) ≤P Oil MIN Or P Oil (oil) ≥P Oil MAX Sending oil level alarm information, and sending the oil level alarm information to a driver through an intelligent cabin interaction module;
the coolant maintenance strategy includes a hydraulic pressure value P measured by a coolant level sensor Liquid and its preparation method The method comprises the steps of carrying out a first treatment on the surface of the Acquiring a minimum scale value and a maximum scale value of an expansion tank mark; measuring the minimum hydraulic pressure value P at the minimum scale value by a coolant liquid level sensor Liquid MIN And a maximum hydraulic pressure value P at the maximum scale value measured by the coolant liquid level sensor Liquid MAX The method comprises the steps of carrying out a first treatment on the surface of the If P Liquid and its preparation method ≤P Liquid MIN Or P Liquid and its preparation method ≥P Liquid MAX And sending out the cooling liquid level alarm information, and sending the cooling liquid level alarm information to a driver through the intelligent cabin interaction module.
According to the intelligent cabin intelligent vehicle maintenance system, the intelligent cabin is integrated with the vehicle maintenance active reminding system, the real-time state monitoring of the vehicle is formed by utilizing the application ecology integrated by the intelligent cabin multifunctional module, the optimal use effect of intelligent interaction of the human and the vehicle is achieved by reminding a driver of the vehicle maintenance information through multimode interaction, the in-vehicle electronic system, the intelligent interface and the human-computer interaction are seamlessly combined, and the intelligent cabin intelligent vehicle maintenance system evolves from simple one-way interaction of the human and the computer to the perception-machine-human autonomous interaction.
Example 2
Based on the intelligent cabin system provided by the embodiment of the invention, the embodiment 2 of the invention also provides an automobile, and the departure path comprises the intelligent cabin system. The intelligent cabin system comprises an intelligent cabin domain control module, a chassis multifunctional control module, a chassis information acquisition module and an intelligent cabin interaction module;
the intelligent cabin controller is respectively in communication connection with the chassis multifunctional control module and the intelligent cabin interaction module; the chassis multifunctional control module is in communication connection with the chassis information acquisition module;
the chassis multifunctional control module judges the current use situation of the oil products, the filter elements, the brake and the clutch according to the oil product temperature, the liquid level and the pressure acquired by the chassis information acquisition module, the abrasion information and the load information of the brake and the clutch, and combines the mileage and the oil consumption provided by the intelligent cabin domain control module, and a maintenance strategy is set through the chassis multifunctional control module so as to realize the intelligent maintenance and intelligent reminding functions of a vehicle chassis system; and the intelligent cabin interaction module is used for realizing intelligent interaction of maintenance information.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is inherent to. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. In addition, the parts of the above technical solutions provided in the embodiments of the present application, which are consistent with the implementation principles of the corresponding technical solutions in the prior art, are not described in detail, so that redundant descriptions are avoided.
While the specific embodiments of the present invention have been described above with reference to the drawings, the scope of the present invention is not limited thereto. Other modifications and variations to the present invention will be apparent to those of skill in the art upon review of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. On the basis of the technical scheme of the invention, various modifications or variations which can be made by the person skilled in the art without the need of creative efforts are still within the protection scope of the invention.
Claims (10)
1. An intelligent cockpit system, comprising: the intelligent cabin domain control module, the chassis multifunctional control module, the chassis information acquisition module and the intelligent cabin interaction module;
the intelligent cabin controller is respectively in communication connection with the chassis multifunctional control module and the intelligent cabin interaction module; the chassis multifunctional control module is in communication connection with the chassis information acquisition module;
the chassis multifunctional control module judges the use status of the oil products, the filter element, the brake and the clutch according to the oil product temperature, the liquid level and the pressure, the wear information and the load information of the brake and the clutch, and combines the mileage and the oil consumption provided by the intelligent cabin area control module, and a maintenance strategy is set through the chassis multifunctional control module so as to realize the intelligent maintenance and intelligent reminding functions of a vehicle chassis system; and the intelligent cabin interaction module is used for realizing intelligent interaction of maintenance information.
2. The intelligent cockpit system according to claim 1, wherein said chassis multifunction control module is further connected to a tri-axial acceleration sensor;
the chassis multifunctional control module calculates rolling resistance, air resistance, gradient resistance and acceleration resistance respectively by utilizing the sum of the resistance applied by the vehicle in the running process to be equal to the driving force;
The rolling resistance F f ＝0.0076+0.000056U a The method comprises the steps of carrying out a first treatment on the surface of the Wherein U is a The vehicle speed is the vehicle speed;
the air resistance
Wherein C is D Is the wind resistance coefficient; a is the cross-sectional area of the automobile;
the gradient resistance F i ＝mgsina；Wherein m is the mass of the automobile; g is gravity acceleration;
the acceleration resistance F j ＝σma x The method comprises the steps of carrying out a first treatment on the surface of the Wherein sigma is the conversion coefficient of the rotating mass of the automobile; a, a x Acceleration in the horizontal direction of vehicle travel; a, a y Is the acceleration of the vehicle in the vertical direction of travel.
3. The intelligent cockpit system of claim 2 wherein said intelligent cockpit area control module further outputs engine model, engine speed, engine torque, engine economy area, transmission model, transmission gear ratio, vehicle speed, drive axle speed ratio, and tire model information to the chassis multifunction control module; the chassis multifunctional control module calculates the current transmission gear ratio of the transmission; judging whether the current gear is in the universal characteristic economic region of the engine according to the current transmission ratio, the current engine torque and the vehicle speed; if not, reminding a driver to shift down or up to an economic zone gear under the current working condition;
the said
4. The intelligent cockpit system of claim 1 wherein said intelligent cockpit interaction module comprises a microphone sub-module, a multi-camera sub-module, a man-machine interaction sub-module, a network management sub-module, a cell phone communication sub-module, a full liquid crystal instrument sub-module, a HUD display sub-module and a central control multimedia sub-module;
The microphone submodule is connected with the intelligent cabin area control module and is used for outputting vehicle maintenance information for the voice of a driver and sending out an execution instruction of the driver;
the multi-path camera sub-module is connected with the intelligent cabin area control module and is used for monitoring the fatigue state of a driver and monitoring all positions outside the vehicle so as to realize 360-degree looking around;
the man-machine interaction submodule is connected with the intelligent cabin area control module and is used for controlling the intelligent cabin through multimode interaction of people and vehicles;
the network management submodule is connected with the intelligent cabin domain control module and is used for realizing the connection of the intelligent cabin with external communication and the background monitoring of big data;
the mobile phone communication submodule is connected with the intelligent cabin area control module and is used for receiving vehicle maintenance information pushed by the intelligent cabin;
the display sub-module is connected with the intelligent cabin area control module and is used for displaying driving key information, vehicle key information and vehicle maintenance information and state reminding pushed by the intelligent cabin;
the central control multimedia sub-module is used for displaying the forward route of the emergency maintenance or nearby maintenance high-quality service station and displaying multimedia information.
5. The intelligent cockpit system of claim 1 wherein the chassis information acquisition module comprises an oil level temperature sensor, a coolant level sensor, a steering level oil level sensor, a gearbox oil temperature sensor, a drive axle oil temperature sensor, a clutch wear sensor, a brake shoe wear sensor, an intake negative pressure sensor, a diesel negative pressure differential pressure sensor;
The engine oil liquid level temperature sensor is used for acquiring engine oil liquid level temperature information;
the cooling liquid level sensor is used for acquiring cooling liquid level information;
the steering liquid level oil level sensor is used for acquiring steering liquid level oil level information;
the gearbox oil temperature sensor is used for acquiring gearbox oil temperature information;
the drive axle oil temperature sensor is used for acquiring drive axle oil temperature information;
the clutch wear sensor is used for acquiring clutch wear information;
the brake shoe wear sensor is used for acquiring brake shoe wear information;
the negative pressure sensor is used for acquiring pressure values of an air inlet end and an air outlet end respectively;
the diesel negative pressure differential pressure sensor is used for acquiring diesel negative pressure differential pressure information.
6. The intelligent cockpit system according to claim 5, wherein the maintenance strategies set by the chassis multifunctional control module include an oil quality maintenance strategy and a life maintenance strategy;
the oil quality maintenance strategy comprises that an engine oil liquid level temperature sensor is used for converting the engine oil liquid level into a first voltage signal and outputting the first voltage signal to a multifunctional chassis control module; the chassis multifunctional control module judges that the liquid level of the engine oil is in a liquid level threshold range and the duration exceeds a time threshold according to the first voltage signal, namely, judges that the liquid level is absent or the liquid level is too high, outputs the fault to the intelligent cabin area control module through the vehicle body CAN, and then sends fault information to a driver through the intelligent cabin interaction module;
Or the engine oil liquid level temperature sensor converts the engine oil temperature into a second voltage signal and outputs the second voltage signal to the chassis multifunctional control module; the chassis multifunctional control module judges that the engine oil temperature is not in the temperature threshold range according to the second voltage signal, namely the engine oil temperature is over-high fault; the fault information is output to an intelligent cabin area control module through a vehicle body CAN, and then the fault information is sent to a driver through an intelligent cabin interaction module;
the service life maintenance strategy comprises the steps that the chassis multifunctional control module obtains engine oil maintenance parameters, calculates total maintenance coefficients according to the engine oil maintenance parameters, and sends maintenance information to a driver through the intelligent cabin interaction module according to the total maintenance coefficients.
7. The intelligent cockpit system of claim 5 wherein said chassis multi-function control module configured maintenance strategy further comprises a cartridge life maintenance strategy; the cartridge life maintenance strategy includes:
firstly, measuring an initial pressure value p of air inlet of a non-blocking filter element 0 ＝p Feeding in -p Out of ；
Gradually simulating the blocking condition of the air inlet filter element to obtain a pressure difference delta p; the pressure p of the air outlet which causes the rapid increase of the oil consumption under the rated working condition of the engine can be met MAX The maximum differential pressure deltap MAX ＝p Feeding in -p MAX ；
The calculation method of the rest life is
When Δp=p 0 When the residual life is 1;
and according to the residual service life, the service life maintenance information of the filter element is sent to a driver through an intelligent cabin interaction module.
8. The intelligent cockpit system of claim 5 wherein said chassis multifunction control module configured maintenance strategy further comprises a clutch wear and life prediction maintenance strategy; the clutch wear and life prediction maintenance strategy includes: the clutch abrasion loss signal is read according to the clutch abrasion displacement sensor and sent to the chassis multifunctional control module to calculate the residual abrasion loss of the clutch and the vehicle endurance mileage;
residual wear = 26mm-X; wherein X is a clutch position signal value; the residual life is
Range = remaining wear amount x average of the interval range; interval range = this secondary clutch position signal value corresponds to range-last clutch position signal value corresponds to range.
9. The intelligent cockpit system according to claim 5, wherein said maintenance strategy set by said chassis multifunction control module further comprises an oil level maintenance strategy and a coolant level maintenance strategy;
The liquid level maintenance strategy comprises an oil pressure value P measured by a steering oil level sensor Oil (oil) The method comprises the steps of carrying out a first treatment on the surface of the Obtaining a minimum scale value and a maximum scale value of a steering oil tank, and measuring a minimum oil pressure value P at the minimum scale value through a steering oil level sensor Oil MIN And the maximum oil pressure value P at the maximum scale value is measured by a steering oil level sensor Oil MAX The method comprises the steps of carrying out a first treatment on the surface of the If P Oil (oil) ≤P Oil MIN Or P Oil (oil) ≥P Oil MAX Sending oil level alarm information, and sending the oil level alarm information to a driver through an intelligent cabin interaction module;
the coolant maintenance strategy includes a hydraulic pressure value P measured by a coolant level sensor Liquid and its preparation method The method comprises the steps of carrying out a first treatment on the surface of the Acquiring a minimum scale value and a maximum scale value of an expansion tank mark; measuring the minimum hydraulic pressure value P at the minimum scale value by a coolant liquid level sensor Liquid MIN And a maximum hydraulic pressure value P at the maximum scale value measured by the coolant liquid level sensor Liquid MAX The method comprises the steps of carrying out a first treatment on the surface of the If P Liquid and its preparation method ≤P Liquid MIN Or P Liquid and its preparation method ≥P Liquid MAX And sending out the cooling liquid level alarm information, and sending the cooling liquid level alarm information to a driver through the intelligent cabin interaction module.
10. An automobile comprising an intelligent cabin system according to any one of claims 1 to 9.
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| CN202211463861.4A CN116279201A (en) | 2022-11-22 | 2022-11-22 | Intelligent cabin system and automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116767255A (en) * | 2023-07-03 | 2023-09-19 | 深圳市哲思特科技有限公司 | Intelligent cabin linkage method and system for new energy automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116767255A (en) * | 2023-07-03 | 2023-09-19 | 深圳市哲思特科技有限公司 | Intelligent cabin linkage method and system for new energy automobile |
| CN116767255B (en) * | 2023-07-03 | 2024-02-06 | 深圳市哲思特科技有限公司 | Intelligent cabin linkage method and system for new energy automobile |
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