CN114137870B - Electronic switch centralized controller for automobile electrical system - Google Patents
Electronic switch centralized controller for automobile electrical system Download PDFInfo
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- CN114137870B CN114137870B CN202111330518.8A CN202111330518A CN114137870B CN 114137870 B CN114137870 B CN 114137870B CN 202111330518 A CN202111330518 A CN 202111330518A CN 114137870 B CN114137870 B CN 114137870B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
The invention provides an electronic switch centralized controller of an automobile electrical system, which comprises a singlechip, a bus control device and an electronic component controller, wherein the singlechip is connected with the bus control device; the singlechip is electrically connected with the electronic component controller through the bus control device; the singlechip is used for analyzing task data of the electrical appliance system, determining a target instruction and generating a control signal; the bus control device is used for transmitting control signals and converting the control signals into operation logic signals; the component controller is used for controlling the electronic switch according to the operation logic signals. The beneficial effects are as follows: the system realizes the general control of the automobile electric appliances, analyzes the electric appliance tasks of the automobile electric appliances through the singlechip, identifies the task content, performs transmission and distribution, greatly improves the control efficiency, greatly improves the centralization of electronic switch management, improves the management efficiency and reduces the management cost.
Description
Technical Field
The invention relates to the technical field of automobile electrical appliances, in particular to an electronic switch centralized controller of an automobile electrical appliance system.
Background
At present, the management of an automobile electrical system starts from angles such as a storage battery, a generator, a regulator and the like, and in the daily driving of a user, the frequently used regulation and control of an automobile navigation, a radio, an automobile air conditioner and a rearview mirror belong to the regulation and control range of automobile electrical appliances, and the use of the automobile electrical system is not separated from the power supply of the automobile storage battery; some are also controlled through the same port, such as radio, car navigation; in the prior art, the control of automotive appliances is agreed in the traditional art to be a popular distinction of some appliance controls because of different systems, for example: the gasoline car must generate electricity by the generator to realize multimedia playing, and the stored electricity is too low and is only used for electric ignition. Different systems have different buses. Only the network communication layer has can bus, lin bus, most bus and bluetooth bus, which are too complicated, and different buses represent different systems, and cannot realize the system overall control. The development direction of the electric vehicle of clean energy is not met. .
Disclosure of Invention
The invention provides an electronic switch centralized controller of an automobile electrical system, which is used for solving the problems that the electronic switches of the automobile electrical system are too many, the operation and monitoring of the electronic switches are complicated, and some complex driving scenes cannot be dealt with in time.
An electronic switch centralized controller of an automobile electrical system comprises a singlechip, a bus control device and an electronic component controller;
The singlechip is electrically connected with the electronic component controller through the bus control device;
the singlechip is used for analyzing task data of the automobile electrical appliance, determining a target function and generating a corresponding control instruction;
The bus control device is used for sending the control instruction to the component controller and converting the control instruction into an operation logic signal;
the component controller is used for controlling the electronic switch according to the operation logic signal.
As an embodiment of the present invention: the singlechip comprises:
Automobile task identifier: the method comprises the steps of identifying an automobile task issued by a user and obtaining task data;
Vehicle-mounted processor: the method comprises the steps of performing data analysis on task data through a preset deconstruction analysis method, obtaining an analysis result, generating a target task, and converting the target task into a control signal;
communication network card: the analysis process is used for uploading the task data to the vehicle-mounted network server; wherein,
The analysis process includes: result analysis, task generation, signal conversion.
As an embodiment of the present invention: the bus control device includes:
Interface identifier: the interface information is used for identifying the connection interface of the singlechip and the connection interface of the component controller and determining the interface information; wherein,
The interface information includes: interface serial number and interface rule;
A signal converter: the control signal is converted into a logic signal through signal conversion, and the transmission mode of the logic signal is determined; wherein,
The transmission mode is as follows: one-to-one transmission, one-to-many transmission.
As an embodiment of the present invention: the component controller includes:
A signal analysis port: the logic instruction processing module is used for carrying out signal analysis on the logic signals to obtain logic instructions;
an instruction analyzer: the logic instruction is used for carrying out instruction analysis on the logic instruction to obtain an execution instruction; wherein,
The execution instructions include: a switch instruction and an electric appliance adjusting instruction;
And a switch controller: the electronic component is used for controlling the switch of the electronic component according to the switch instruction to acquire switch state information;
component adjuster: and the electronic device is used for adjusting the state index of the automobile electronic component according to the electric appliance adjusting instruction and determining adjusting state information.
As an embodiment of the present invention: the safety analysis device and the switch detector are also included;
the safety analysis device includes: a monitor and a component safety prediction chip;
the monitor is used for monitoring each switch-controllable electronic component of the automobile electrical system and acquiring electronic component data;
The component safety prediction chip is used for carrying out strategy analysis processing on the electronic component data according to an electric appliance operation strategy library, determining the safety probability of the electronic component, carrying out safety judgment and marking; wherein,
When the safety probability of the electronic component is larger than the safety probability of the preset component, the electronic component is in a safety state at the moment, and safety marking is carried out;
when the safety probability of the electronic component is smaller than or equal to the safety probability of a preset component, the electronic component is in a dangerous state at the moment, and early warning marking is carried out;
a switch detector: the electronic switch control method comprises the steps of detecting an electronic switch state, obtaining the electronic switch detection state, and comparing and judging the electronic switch detection state with a command switch state in task data; wherein,
When the detection state of the electronic switch is consistent with the command switch state, the electronic switch is in a normal state;
And when the detection state of the electronic switch is inconsistent with the command switch state, the electronic switch is in an abnormal state at the moment, and switch abnormality protection processing is carried out.
As an embodiment of the present invention: the safety analysis device further includes:
an automotive power safety analysis module comprising: a local analysis unit and a global analysis unit;
the local analysis unit is used for carrying out circuit safety analysis on the single electronic switch according to the detection state of the single electronic switch and a preset switch safety database, obtaining a single switching coincidence value, judging and obtaining single judgment information;
The global analysis unit is used for carrying out global security analysis on each electronic switch according to the detection state of each electronic switch and a preset security database, acquiring a global security value, and judging to acquire global judgment information; wherein,
When the global safety value is within a preset threshold, the global electronic switch is normal, and the automobile power supply state is a safety state;
And when the global safety value is not within a preset threshold, the power supply state of the automobile is an abnormal state, and global power supply abnormal protection processing is carried out.
As an embodiment of the present invention: the signal conversion includes the steps of:
Step S01: signal analysis is carried out on signal parameters of control signals in the automobile electrical appliance, and electric signals are obtained; wherein,
The signal parameters include: signal frequency, signal duration, signal waveform;
step S02: detecting level change according to the electric signal, determining a level state, and acquiring level change information; wherein,
The level states include: a high level state, a low level state;
The level change information includes: voltage range change information, voltage change time;
Step S03: according to the level change information, a current line strategy is obtained, a line to be connected is determined, a current path is generated by connecting the line to be connected, and current transfer information is obtained; wherein,
The current transfer information includes: a current transfer path, current change information, and transfer time;
Step S04: and carrying out information exchange processing on the current transfer information according to a preset current exchange rule, obtaining exchange level information, and generating a logic signal according to the exchange level information.
As an embodiment of the present invention: the safety analysis device further includes:
automobile central control equipment: the touch screen comprises a display and a touch screen;
The display is used for carrying out data processing on the electronic information and displaying the electronic information; wherein,
The electronic information comprises switch state information, electronic component data, electronic component safety probability, electronic switch state, single judgment information and global judgment information;
The touch screen is used for controlling and adjusting the electronic switch, acquiring control information and adjustment information and displaying the control information and the adjustment information.
As an embodiment of the present invention: the component controller further includes:
An anomaly responder: the method comprises the steps of analyzing an abnormal state according to a preset abnormal database, obtaining an abnormal grade and judging; wherein,
When the abnormality level is emergency abnormality, emergency power-off is carried out;
when the abnormality grade is not emergency abnormality, performing manual early warning treatment;
The abnormal state includes: abnormal electronic switch and abnormal electronic switch state; wherein,
The electronic switch includes: the electronic switch is turned on and turned off;
the electronic switch state includes: an electronic switch voltage state, an electronic switch change state;
The anomaly level includes: mild, moderate, and urgent;
ABS device: the method is used for judging the abnormal grade and processing the abnormal grade; wherein,
When the abnormal level is emergency abnormality, triggering an emergency braking system to perform anti-lock treatment on the automobile;
and when the abnormality level is not an emergency abnormality, not triggering the emergency braking system and performing secondary inspection.
As an embodiment of the present invention: the anomaly responder further comprises:
and the power-off control module is used for: the method comprises the steps of positioning an abnormal switch of an automobile electrical appliance according to an abnormal state of the electronic switch, and performing emergency power-off processing on the abnormal switch to obtain power-off information of the automobile electrical appliance; wherein,
The automobile electrical equipment outage information comprises: automobile electrical equipment information, electrical equipment outage time, outage switch serial numbers, outage switch positions and outage pre-switching data;
and an expansion control module: the method comprises the steps of carrying out expansion feasibility analysis according to an abnormal state of an electronic switch of an automobile electrical appliance, obtaining an expansion value and judging; wherein,
Stopping the expansion operation when the expansion value is not in the preset threshold range;
and when the expansion value is within a preset threshold range, carrying out electronic switch channel expansion to acquire expansion information.
The invention has the beneficial effects that: the system has the advantages that the general control of the automobile electrical appliances is realized, the electrical appliance tasks of the automobile electrical appliances are analyzed and the task content is identified through the singlechip, the transmission distribution is carried out, the control efficiency is greatly improved, the transmission accuracy is improved, the bus control system converts signals, the transmission safety is improved, the component controller is used for carrying out switch management on the electronic switch and regulating the electronic components, the management concentration of the electronic switch is greatly improved, the management efficiency is improved, and the management cost is reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a block diagram of an electronic switch centralized controller of an automotive electrical system in an embodiment of the invention;
FIG. 2 is a functional diagram of an electronic switch centralized controller of an automotive electrical system according to an embodiment of the present invention;
fig. 3 is a functional diagram of a single chip microcomputer in an electronic switch centralized controller of an automotive electrical system in an embodiment of the invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Example 1:
As shown in fig. 1, the invention relates to an electronic switch centralized controller of an automobile electrical system, which comprises the following structures: the system comprises a singlechip, a bus control device and an electronic component controller; wherein, in the drawings:
1 represents a singlechip, 2 represents a bus control device and 3 represents an electronic component controller;
the system comprises a singlechip, a bus control device and an electronic component controller;
The singlechip is electrically connected with the electronic component controller through the bus control device;
the singlechip is used for analyzing task data of the automobile electrical appliance, determining a target function and generating a corresponding control instruction;
The bus control device is used for sending the control instruction to the component controller and converting the control instruction into an operation logic signal;
the component controller is used for controlling the electronic switch according to the operation logic signal.
The working principle of the technical scheme is as follows: compared with the prior art, the electronic switch independent control method for the automobile electrical system is quite complicated because the prior art does not have the same type of ports when controlling the electronic devices, and the navigation system, the multimedia system and the chassis control system are arranged. The invention designs the electronic switch centralized controller of the automobile electric system, and realizes the total control of the automobile electric.
According to the technical scheme, the electronic switch of the automobile electrical system is controlled in a centralized manner, the adjustment task of the automobile electrical switch is analyzed through the singlechip to obtain the control signal, the control signal is transmitted through the bus control device, the bus control device is connected with the port of the singlechip at first, the other end of the bus control device is connected with the electronic component controller, the control signal is converted into the logic signal before the transmitted control signal reaches the electronic component controller, the logic signal is received by the component controller, the logic operation is carried out, and the electronic switch is controlled or the state of the electronic component is adjusted.
The beneficial effects of the technical scheme are as follows: the system has the advantages that the general control of the automobile electrical appliances is realized, the electrical appliance tasks of the automobile electrical appliances are analyzed and the task content is identified through the singlechip, the transmission distribution is carried out, the control efficiency is greatly improved, the transmission accuracy is improved, the bus control system converts signals, the transmission safety is improved, the component controller is used for carrying out switch management on the electronic switch and regulating the electronic components, the management concentration of the electronic switch is greatly improved, the management efficiency is improved, and the management cost is reduced.
Example 2:
In one embodiment of the present invention, in one embodiment,
The singlechip comprises:
Automobile task identifier: the method comprises the steps of identifying an automobile task issued by a user and obtaining task data;
Vehicle-mounted processor: the method comprises the steps of performing data analysis on task data through a preset deconstruction analysis method, obtaining an analysis result, generating a target task, and converting the target task into a control signal;
communication network card: the analysis process is used for uploading the task data to the vehicle-mounted network server; wherein,
The analysis process includes: result analysis, task generation, signal conversion.
The working principle of the technical scheme is as follows: compared with the prior art, the single chip microcomputer only performs data processing and transmission, and the single chip microcomputer is rarely used for controlling in the automobile electrical appliance, and the single chip microcomputer is a direct electronic switch based on a bus.
The beneficial effects of the technical scheme are as follows: according to the method, the vehicle task is identified, the subsequent processing and transmission are well paved, the vehicle-mounted processor confirms target instructions and control signals of the identified vehicle electric appliance task, the processing accuracy is improved, the data are transmitted to the network server through the communication network card, the subsequent processing database is subjected to comparison operation, and the processing efficiency is improved.
Example 3:
In one embodiment of the present invention, in one embodiment,
The bus control device includes:
Interface identifier: the interface information is used for identifying the connection interface of the singlechip and the connection interface of the component controller and determining the interface information; wherein,
The interface information includes: interface serial number and interface rule;
A signal converter: the control signal is converted into a logic signal through signal conversion, and the transmission mode of the logic signal is determined; wherein,
The transmission mode is as follows: one-to-one transmission, one-to-many transmission.
The working principle of the technical scheme is as follows: unlike the prior art solutions, where the transmission line is simply controlled, the prior art bus control is based on direct control of a relay switch or other electronic switch, as the vehicle requires easy maintenance. But with the development of technology, integrated circuits are more and more popular, and control performance and maintenance grand is more convenient, so that the technical scheme needs to be adaptively changed, the interface of the singlechip is connected with the interface of the electronic component controller through the interface identifier, the serial number and the interface rule of the interface are acquired while the interface identifier is used for coding the automobile electrical appliance, and the direct identification in the control process can be realized. In addition, the bus control device converts the control signals processed by the singlechip through the signal converter to generate logic signals, and determines whether the transmission mode at the moment is one-to-one or one-to-many, so that the bus control device is the biggest difference between the traditional technology and the prior art, and the traditional technology is direct control and is single-wire, so that only single-to-single command issuing is realized.
The beneficial effects of the technical scheme are as follows: through managing singlechip interface and electronic component controller interface, guaranteed transmission accuracy, through the effective selection of transmission mode, improved transmission efficiency.
Example 4:
In one embodiment of the present invention, in one embodiment,
A signal analysis port: the logic instruction processing module is used for carrying out signal analysis on the logic signals to obtain logic instructions;
an instruction analyzer: the logic instruction is used for carrying out instruction analysis on the logic instruction to obtain an execution instruction; wherein,
The execution instructions include: a switch instruction and an electric appliance adjusting instruction;
And a switch controller: the electronic component is used for controlling the switch of the electronic component according to the switch instruction to acquire switch state information;
component adjuster: and the electronic device is used for adjusting the state index of the automobile electronic component according to the electric appliance adjusting instruction and determining adjusting state information.
The working principle of the technical scheme is as follows: different from the prior art that each switch is directly controlled respectively, the technical scheme is characterized in that logic signals are analyzed through a signal analysis port, logic instructions are analyzed through an instruction analyzer, executed instructions are obtained, at the moment, a switch controller controls an electronic switch according to the switch instructions, if the instructions are not limited to controlling the electronic switch, electronic components are required to be regulated, and regulating information is obtained;
The beneficial effects of the technical scheme are as follows: through analysis of logic signals and execution control of instructions, the control efficiency of the electric appliance system on centralized control of the electronic switch is improved.
Example 5:
In one embodiment of the present invention, in one embodiment,
The safety analysis device and the switch detector are also included;
the safety analysis device includes: a monitor and a component safety prediction chip;
the monitor is used for monitoring each switch-controllable electronic component of the automobile electrical system and acquiring electronic component data;
The component safety prediction chip is used for carrying out strategy analysis processing on the electronic component data according to an electric appliance operation strategy library, determining the safety probability of the electronic component, carrying out safety judgment and marking; wherein,
When the safety probability of the electronic component is larger than the safety probability of the preset component, the electronic component is in a safety state at the moment, and safety marking is carried out;
when the safety probability of the electronic component is smaller than or equal to the safety probability of a preset component, the electronic component is in a dangerous state at the moment, and early warning marking is carried out;
a switch detector: the electronic switch control method comprises the steps of detecting an electronic switch state, obtaining the electronic switch detection state, and comparing and judging the electronic switch detection state with a command switch state in task data; wherein,
When the detection state of the electronic switch is consistent with the command switch state, the electronic switch is in a normal state;
And when the detection state of the electronic switch is inconsistent with the command switch state, the electronic switch is in an abnormal state at the moment, and switch abnormality protection processing is carried out.
The working principle of the technical scheme is as follows: the technical scheme includes that an electronic switch and electronic components responsible for the electronic switch are subjected to safety analysis and monitoring through a safety analysis device, each switch-controllable electronic component of an automobile electrical system is monitored through a monitor, electronic component data are obtained, strategy analysis is carried out through the data of the automobile electrical electronic components, a strategy library contains safety data of various strategies, new strategy data are added, the strategy library is further perfected, safety judgment is carried out through determining safety probability of the electronic components, and when the safety probability of the electronic components is smaller than or equal to the preset safety probability of the components, the electronic components are in dangerous states at the moment; meanwhile, the electronic switch can be detected, whether the electronic switch is in an abnormal state or not is detected, if the electronic switch is abnormal, abnormal protection processing is carried out, and the automobile electrical equipment is protected;
the beneficial effects of the technical scheme are as follows: the electronic component data of the automobile electrical appliance are acquired through the monitor, the comprehensive safety of each part of the electrical appliance is improved from multiple angles, and real-time protection is provided for the automobile electrical appliance through the detection of the safety of the switch, so that the overall safety of the automobile is enhanced.
Example 6:
In one embodiment of the present invention, in one embodiment,
The safety analysis device further includes:
an automotive power safety analysis module comprising: a local analysis unit and a global analysis unit;
the local analysis unit is used for carrying out circuit safety analysis on the single electronic switch according to the detection state of the single electronic switch and a preset switch safety database, obtaining a single switching coincidence value, judging and obtaining single judgment information; the switch safety database is established based on the switch characteristics and the functions of the switch, and can judge the circuit safety based on various states of the switch.
The global analysis unit is used for carrying out global security analysis on each electronic switch according to the detection state of each electronic switch and a preset security database, acquiring a global security value, and judging to acquire global judgment information; wherein,
When the global safety value is within a preset threshold, the global electronic switch is normal, and the automobile power supply state is a safety state; the global safety value is a determined value obtained by calculating and distinguishing the real-time state of each electronic switch, and the threshold value is a translator comprehensive test value obtained by considering the characteristics of the switch, the importance of the switch to the automobile and the relevance of the switch because the electronic switches are either on or off, but the importance of different electronic switches are different and are related to each other.
And when the global safety value is not within a preset threshold, the power supply state of the automobile is an abnormal state, and global power supply abnormal protection processing is carried out.
The working principle of the technical scheme is as follows: in the technical scheme, the automobile power supply safety analysis module is used for carrying out local analysis and global analysis on an automobile electrical appliance, wherein the local analysis is carried out by single electronic switch detection, the safety analysis is carried out, the global analysis is carried out by whole electrical appliance electronic component analysis, global judgment information is obtained, whether an abnormal condition exists is detected, and if the abnormal condition exists, global power supply abnormal protection treatment is carried out;
The global power supply abnormality protection processing needs to perform global power supply abnormality protection calculation, to analyze power supply points of an automobile storage battery, perform sample analysis according to the positions of the power supply points, calculate a sample center, establish an objective function according to set constraint conditions of power supply requirements of the automobile, and perform calculation until the objective function meeting the conditions is calculated, wherein the global power supply abnormality protection calculation comprises the following steps of;
Step one: positioning a power supply point of an automobile storage battery, acquiring power supply point position information lambda n, wherein n=1, 2,3, … and j, and performing position grouping on the j position information to divide the j position information into A group of positions, establishing an objective function:
Wherein, Respectively is/>The sample center of the position group, tau is the index matrix of the battery and the power supply influence factor, tau nm is the negative index of the nth battery power supply point and the mth power supply influence factor,Representative factor is/>D m is midpoint position information of the position group m, iiλ n-dm is Euclidean distance from the midpoint position of the position group m to the nth battery power supply point, T m is a loss factor of power supply outage of the mth important midpoint position, omega nm is the fastest time from the nth battery power supply point to the position group m, the minimum Euclidean distance between the battery power supply point and the midpoint position of the position group is multiplied by negative indexes affecting the battery power supply point and the midpoint position, and the minimum product of the shortest time and the loss factor is combined and calculated to obtain an objective function;
step two: according to the objective function and the automobile power supply control information, constraint conditions of the objective function are obtained:
Where l nm is the Euclidean distance from the midpoint of position group m to the nth battery-operated point, For position group/>Euclidean distance from the midpoint position of (a) to the nth battery-powered point, ω q is the all-case power-up time group for position group m, where min { ω q } is the shortest power-up time in position group m; limiting the range of the objective function through constraint conditions;
step three: according to the first step and the second step, calculate The center positions are calculated and judged according to the objective function in the first step; wherein,
When the objective function value is greater than or equal to a preset threshold value, continuing to calculate;
when the objective function value is smaller than a preset threshold value, stopping calculation;
Then according to the preset power supply positive factors, judging the power supply condition of each electric appliance of the automobile, if the power supply condition does not accord with the running condition of the automobile, modifying an index matrix tau of the battery and the power supply influence factors, continuously calculating an objective function, and knowing to obtain an optimal power supply protection result;
the beneficial effects of the technical scheme are as follows: the overall safety of the electric appliance is greatly improved through the combination of local analysis and global analysis, and for the global analysis, security holes can be effectively prevented through building objective functions, the safety weaknesses of the electric appliance are comprehensively analyzed, and through correction of constraint conditions, the calculation speed of a protection result is improved, and the operation efficiency of the electric appliance of the automobile is guaranteed.
Example 7:
In one embodiment of the present invention, in one embodiment,
The signal conversion includes the steps of:
Step S01: signal analysis is carried out on signal parameters of control signals in the automobile electrical appliance, and electric signals are obtained; wherein,
The signal parameters include: signal frequency, signal duration, signal waveform;
step S02: detecting level change according to the electric signal, determining a level state, and acquiring level change information; wherein,
The level states include: a high level state, a low level state;
The level change information includes: voltage range change information, voltage change time;
Step S03: according to the level change information, a current line strategy is obtained, a line to be connected is determined, a current path is generated by connecting the line to be connected, and current transfer information is obtained; wherein,
The current transfer information includes: a current transfer path, current change information, and transfer time;
Step S04: and carrying out information exchange processing on the current transfer information according to a preset current exchange rule, obtaining exchange level information, and generating a logic signal according to the exchange level information.
The working principle of the technical scheme is as follows: the transmission signal is also transmitted in the direct control in the prior art scheme, but the transmission conversion mode is different from the transmission conversion mode in the invention. The invention has more considered factors and more complex structure, but can realize integrated control. According to the technical scheme, the electric signal is extracted from the control signal, the level change in the electric signal, namely the voltage change, is detected, the voltage change state is obtained, the on circuit is determined according to the voltage change state, the current is turned on, the change of the current is detected, the exchange information is obtained, and the logic signal is generated;
The beneficial effects of the technical scheme are as follows: the conversion accuracy is greatly improved by grasping the voltage change of the electric signal through the electric signal conversion of the control signal, and the conversion safety is improved through judging the current connection line.
Example 8:
In one embodiment of the present invention, in one embodiment,
The safety analysis device further includes:
automobile central control equipment: the touch screen comprises a display and a touch screen;
The display is used for carrying out data processing on the electronic information and displaying the electronic information; wherein,
The electronic information comprises switch state information, electronic component data, electronic component safety probability, electronic switch state, single judgment information and global judgment information;
The touch screen is used for controlling and adjusting the electronic switch, acquiring control information and adjustment information and displaying the control information and the adjustment information.
The working principle of the technical scheme is as follows: different from the prior art that the automobile controls the automobile electric appliances through various buttons and switches, the automobile central control equipment in the technical scheme displays specific information of the automobile electric appliances by using the display function of the display, and can perform proper regulation and control on the automobile electric appliances according to the information of the automobile electric appliances through the touch screen.
The beneficial effects of the technical scheme are as follows: through showing the specific information of the automobile electric appliance, the user can intuitively see the state of the automobile electric appliance, better reference is provided for the user to control the electric appliance, and convenience is enhanced for the user to overhaul the automobile electric appliance.
Example 9:
In one embodiment of the present invention, in one embodiment,
The component controller further includes:
An anomaly responder: the method comprises the steps of analyzing an abnormal state according to a preset abnormal database, obtaining an abnormal grade and judging; wherein,
When the abnormality level is emergency abnormality, emergency power-off is carried out;
when the abnormality grade is not emergency abnormality, performing manual early warning treatment;
The abnormal state includes: abnormal electronic switch and abnormal electronic switch state; wherein,
The electronic switch includes: the electronic switch is turned on and turned off;
the electronic switch state includes: an electronic switch voltage state, an electronic switch change state;
The anomaly level includes: mild, moderate, and urgent;
ABS device: the method is used for judging the abnormal grade and processing the abnormal grade; wherein,
When the abnormal level is emergency abnormality, triggering an emergency braking system to perform anti-lock treatment on the automobile;
and when the abnormality level is not an emergency abnormality, not triggering the emergency braking system and performing secondary inspection.
The working principle of the technical scheme is as follows: in the technical scheme, the abnormal state is obtained by comparing and judging the data in the set abnormal database with the detected data through the abnormal responder, and grading is carried out, wherein the abnormal database can record new abnormal data for updating and adjusting, the abnormal grade is divided into slight abnormal, moderate abnormal and emergency abnormal, when the emergency abnormal situation occurs, emergency power off is carried out, meanwhile, manual early warning is carried out, and in addition, an ABS device is also provided, and when the emergency abnormal situation occurs, anti-lock processing is carried out on the automobile;
The anti-lock treatment is to balance and regulate the regulation of the automobile brake device and the regulation of the automobile brake device according to the running process of the automobile power system, and determine the optimal parameter set during braking change, so that the automobile can realize the anti-lock treatment as soon as possible;
The calculation of the optimal anti-lock parameter set comprises the following steps:
Step S01: calculating the real-time speed V im of the automobile during anti-lock starting according to the detected running speed V pr before the automobile is anti-lock and the acceleration alpha 1 of the automobile during anti-lock starting:
Vim＝Vpr+α1*β
Wherein V im is the real-time speed of the automobile during anti-lock start, V im≥0;Vpr is the running speed before the automobile is anti-lock, V pr≥0;α1 is the acceleration of the automobile at the beginning of anti-lock, alpha 1 is negative here, because the automobile at the beginning of anti-lock is in a deceleration state; beta is the duration time of the acceleration of the automobile, and beta is more than or equal to 0; the real-time speed at the moment is calculated by subtracting the acceleration action speed in a certain time from the initial speed, and the system also calculates the slip rate according to the real-time speed;
Step S02: the slip ratio omega of the automobile tire and the ground when the automobile brakes is calculated by acquiring the wheel radius gamma and the real-time wheel braking angular speed delta of the automobile in the driving process of the automobile:
Wherein, gamma is the radius of the wheel of the automobile, delta is the real-time angular velocity of the wheel brake, the linear velocity of the wheel in the running process of the automobile is obtained by multiplying the angular velocity by delta multiplied by gamma, the difference V im -delta multiplied by gamma is made between the real-time velocity V im of the tire and the calculated linear velocity of the wheel, the velocity deviation is obtained, the velocity deviation is divided by the real-time velocity V im, the first slip rate is obtained, ρ is the slip rate correction parameter, and the slip rate is corrected according to the anti-lock occurrence environment factor by multiplying the first slip rate, and meanwhile, the first slip rate is converted by ρ in percentage;
Step S03: regulating and controlling the speed of the automobile according to the acquired parameters and the detected real-time linear speed of the wheels, and calculating a regulating and controlling function set:
Wherein, delta multiplied by gamma is the linear velocity of the wheel during the running of the automobile, p (beta) is the velocity value set by the system, s (beta) is the velocity value detected by the system, and both velocity values change along with the running time change of the anti-lock treatment; mu 1 is a first influence coefficient of the speed difference, mu 2 is a second influence coefficient of the speed difference, mu 3 is a third influence coefficient of the speed difference, f (omega) is a sliding rate influence function, and the sliding rate omega is subjected to straight calculation, divisor calculation and multiplier calculation through mu 1、μ2、μ3 respectively and summed to represent the sliding rate influence function; the difference is subjected to integral processing and multiplied by a second influence coefficient, the difference is subjected to differential processing and multiplied by a third influence coefficient, the three influence coefficients influence the accuracy of the speed difference respectively, and the three coefficients are adjusted through the judgment of the speed obtained by delta multiplied by gamma to obtain the optimal combination of mu 1、μ2、μ3.
The beneficial effects of the technical scheme are as follows: through analysis and comparison of abnormal conditions and specific classification of the abnormal conditions, different abnormal conditions are treated differently, pertinence of an abnormal solution is improved, safety of use of automobile electric appliances is also enhanced, safety of an automobile in emergency is greatly improved through an ABS device, and speed of emergency anti-lock and driving safety of the ABS are greatly improved through calculation of sliding rate and optimal influence coefficient groups.
Example 10:
In one embodiment of the present invention, in one embodiment,
The anomaly responder further comprises:
and the power-off control module is used for: the method comprises the steps of positioning an abnormal switch of an automobile electrical appliance according to an abnormal state of the electronic switch, and performing emergency power-off processing on the abnormal switch to obtain power-off information of the automobile electrical appliance; wherein,
The automobile electrical equipment outage information comprises: automobile electrical equipment information, electrical equipment outage time, outage switch serial numbers, outage switch positions and outage pre-switching data;
and an expansion control module: the method comprises the steps of carrying out expansion feasibility analysis according to an abnormal state of an electronic switch of an automobile electrical appliance, obtaining an expansion value and judging; wherein,
Stopping the expansion operation when the expansion value is not in the preset threshold range;
and when the expansion value is within a preset threshold range, carrying out electronic switch channel expansion to acquire expansion information.
The working principle of the technical scheme is as follows: different from the early warning of dangerous situations in the prior art, the technical scheme acquires the abnormal state of the automobile through the abnormal responder, can use the power-off control module to process the abnormal state of the automobile electrical appliance in a single band after positioning, and importantly acquires power-off information and uploads the power-off information when power is off so as to facilitate subsequent processing, and meanwhile, judges whether the automobile electrical appliance has any part to be expanded or not through judgment of expansion control, so that line expansion and switch expansion can be performed;
The beneficial effects of the technical scheme are as follows: through locating the abnormal electrical appliance part, the abnormal part is found faster, and through outage information, the abnormal analysis efficiency is greatly improved, the solution efficiency is improved for solving the abnormal situation after the abnormality occurs, and meanwhile the safety of the electronic switch is also guaranteed by expanding the control function.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. An electronic switch centralized controller of an automobile electrical system is characterized by comprising a singlechip, a bus control device and an electronic component controller;
The singlechip is electrically connected with the electronic component controller through the bus control device;
the singlechip is used for analyzing task data of the automobile electrical appliance, determining a target function and generating a corresponding control instruction;
The bus control device is used for sending the control instruction to the component controller and converting the control instruction into an operation logic signal;
The component controller is used for controlling the electronic switch according to the operation logic signal;
the bus control device includes:
Interface identifier: the interface information is used for identifying the connection interface of the singlechip and the connection interface of the component controller and determining the interface information; wherein,
The interface information includes: interface serial number and interface rule;
A signal converter: the control signal is converted into a logic signal through signal conversion, and the transmission mode of the logic signal is determined; wherein,
The transmission mode is as follows: one-to-one transmission, one-to-many transmission;
the signal conversion includes the steps of:
Step S01: signal analysis is carried out on signal parameters of control signals in the automobile electrical appliance, and electric signals are obtained; wherein,
The signal parameters include: signal frequency, signal duration, signal waveform;
step S02: detecting level change according to the electric signal, determining a level state, and acquiring level change information; wherein,
The level states include: a high level state, a low level state;
The level change information includes: voltage range change information, voltage change time;
Step S03: according to the level change information, a current line strategy is obtained, a line to be connected is determined, a current path is generated by connecting the line to be connected, and current transfer information is obtained; wherein,
The current transfer information includes: a current transfer path, current change information, and transfer time;
Step S04: and carrying out information exchange processing on the current transfer information according to a preset current exchange rule, obtaining exchange level information, and generating a logic signal according to the exchange level information.
2. The electronic switch centralized controller of an automotive electrical system of claim 1, wherein the single-chip microcomputer comprises:
Automobile task identifier: the method comprises the steps of identifying an automobile task issued by a user and obtaining task data;
Vehicle-mounted processor: the method comprises the steps of performing data analysis on task data through a preset deconstruction analysis method, obtaining an analysis result, generating a target task, and converting the target task into a control signal;
communication network card: the analysis process is used for uploading the task data to the vehicle-mounted network server; wherein,
The analysis process includes: result analysis, task generation, signal conversion.
3. An automotive electrical system electronic switch central controller as in claim 1 wherein said component controller comprises:
A signal analysis port: the logic instruction processing module is used for carrying out signal analysis on the logic signals to obtain logic instructions;
an instruction analyzer: the logic instruction is used for carrying out instruction analysis on the logic instruction to obtain an execution instruction; wherein,
The execution instructions include: a switch instruction and an electric appliance adjusting instruction;
And a switch controller: the electronic component is used for controlling the switch of the electronic component according to the switch instruction to acquire switch state information;
component adjuster: and the electronic device is used for adjusting the state index of the automobile electronic component according to the electric appliance adjusting instruction and determining adjusting state information.
4. The electronic switch central controller of an automotive electrical system of claim 1, further comprising a safety analysis device and a switch detector;
the safety analysis device includes: a monitor and a component safety prediction chip;
the monitor is used for monitoring each switch-controllable electronic component of the automobile electrical system and acquiring electronic component data;
The component safety prediction chip is used for carrying out strategy analysis processing on the electronic component data according to an electric appliance operation strategy library, determining the safety probability of the electronic component, carrying out safety judgment and marking; wherein,
When the safety probability of the electronic component is larger than the safety probability of the preset component, the electronic component is in a safety state at the moment, and safety marking is carried out;
when the safety probability of the electronic component is smaller than or equal to the safety probability of a preset component, the electronic component is in a dangerous state at the moment, and early warning marking is carried out;
a switch detector: the electronic switch control method comprises the steps of detecting an electronic switch state, obtaining the electronic switch detection state, and comparing and judging the electronic switch detection state with a command switch state in task data; wherein,
When the detection state of the electronic switch is consistent with the command switch state, the electronic switch is in a normal state;
And when the detection state of the electronic switch is inconsistent with the command switch state, the electronic switch is in an abnormal state at the moment, and switch abnormality protection processing is carried out.
5. The electronic switch central controller of an automotive electrical system of claim 4, wherein said safety analysis device further comprises:
an automotive power safety analysis module comprising: a local analysis unit and a global analysis unit;
the local analysis unit is used for carrying out circuit safety analysis on the single electronic switch according to the detection state of the single electronic switch and a preset switch safety database, obtaining a single switching coincidence value, judging and obtaining single judgment information;
The global analysis unit is used for carrying out global security analysis on each electronic switch according to the detection state of each electronic switch and a preset security database, acquiring a global security value, and judging to acquire global judgment information; wherein,
When the global safety value is within a preset threshold, the global electronic switch is normal, and the automobile power supply state is a safety state;
And when the global safety value is not within a preset threshold, the power supply state of the automobile is an abnormal state, and global power supply abnormal protection processing is carried out.
6. The electronic switch central controller of an automotive electrical system of claim 4, wherein said safety analysis device further comprises:
automobile central control equipment: the touch screen comprises a display and a touch screen;
The display is used for carrying out data processing on the electronic information and displaying the electronic information; wherein,
The electronic information comprises switch state information, electronic component data, electronic component safety probability, electronic switch state, single judgment information and global judgment information;
The touch screen is used for controlling and adjusting the electronic switch, acquiring control information and adjustment information and displaying the control information and the adjustment information.
7. A vehicle electrical system electronic switch central controller as in claim 3 wherein said component controller further comprises:
An anomaly responder: the method comprises the steps of analyzing an abnormal state according to a preset abnormal database, obtaining an abnormal grade and judging; wherein,
When the abnormality level is emergency abnormality, emergency power-off is carried out;
when the abnormality grade is not emergency abnormality, performing manual early warning treatment;
The abnormal state includes: abnormal electronic switch and abnormal electronic switch state; wherein,
The electronic switch includes: the electronic switch is turned on and turned off;
the electronic switch state includes: an electronic switch voltage state, an electronic switch change state;
The anomaly level includes: mild, moderate, and urgent;
ABS device: the method is used for judging the abnormal grade and processing the abnormal grade; wherein,
When the abnormal level is emergency abnormality, triggering an emergency braking system to perform anti-lock treatment on the automobile;
and when the abnormality level is not an emergency abnormality, not triggering the emergency braking system and performing secondary inspection.
8. The electronic switch central controller of an automotive electrical system of claim 7, wherein said anomaly responder further comprises:
and the power-off control module is used for: the method comprises the steps of positioning an abnormal switch of an automobile electrical appliance according to an abnormal state of the electronic switch, and performing emergency power-off processing on the abnormal switch to obtain power-off information of the automobile electrical appliance; wherein,
The automobile electrical equipment outage information comprises: automobile electrical equipment information, electrical equipment outage time, outage switch serial numbers, outage switch positions and outage pre-switching data;
and an expansion control module: the method comprises the steps of carrying out expansion feasibility analysis according to an abnormal state of an electronic switch of an automobile electrical appliance, obtaining an expansion value and judging; wherein,
Stopping the expansion operation when the expansion value is not in the preset threshold range;
and when the expansion value is within a preset threshold range, carrying out electronic switch channel expansion to acquire expansion information.
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| CN102854866A (en) * | 2011-10-28 | 2013-01-02 | 中联重科股份有限公司 | Virtual instrument panel of car |
| CN211906267U (en) * | 2020-05-28 | 2020-11-10 | 深圳市青椒网络有限公司 | Bus conversion circuit for vehicle |
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