CN111038417A - Automobile control circuit protection method - Google Patents
Automobile control circuit protection method Download PDFInfo
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- CN111038417A CN111038417A CN201911337397.2A CN201911337397A CN111038417A CN 111038417 A CN111038417 A CN 111038417A CN 201911337397 A CN201911337397 A CN 201911337397A CN 111038417 A CN111038417 A CN 111038417A
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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
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Abstract
The invention discloses a method for protecting an automobile control circuit, which comprises the following steps: the method comprises the following steps: the data acquisition module is used for acquiring automobile circuit information, the automobile circuit information comprises external data, internal data and environmental data, the external data comprises initial connecting line temperature data and initial connecting line diameter data, the internal data comprises current data and resistance data, and the environmental data comprises environmental temperature data and air flow data and is transmitted to the analysis module through the processor; step two: the monitoring module is used for monitoring the temperature data, the diameter data and the time data of the connecting wire and transmitting the data to the analysis module.
Description
Technical Field
The invention relates to the technical field of automobile control circuits, in particular to a method for protecting an automobile control circuit.
Background
The circuit comprises: the conductive circuit, which is composed of metal wires and electrical and electronic components, is called a circuit. The power supply is added to the input end of the circuit to enable the input end to generate potential difference, and the circuit can work when being communicated. The presence of current can be measured by some instruments, such as voltmeter or ammeter deflection, bulb lighting, etc.; it is generally divided into two categories according to the nature of the current flowing through it: the circuit through which the direct current passes is called a "direct current circuit", the circuit through which the alternating current passes is called an "alternating current circuit", and the control circuit of the automobile is used for transmitting control models so as to control functions in the automobile.
A circuit protection device and method of configuring a circuit protection device of grant publication No. CN106159908A, the circuit protection device and method of configuring a circuit protection device enable adjustment of circuit protection device operating parameter settings only via a separate programming device, such as a remote device, configured to communicate with the circuit protection device, the programming device being associable with selectable operating parameters of the circuit protection device, thereby enabling multiple product configurations for the circuit protection device, however, the circuit protection device and the method for configuring the circuit protection device cannot protect from the inside of the circuit, cannot analyze the operation data of the internal circuit, cannot predict the bearing limit of the circuit, and the best replacement circuit cannot be selected quickly after the circuit is damaged, so that a protection method for the automobile control circuit is provided.
Disclosure of Invention
The invention aims to provide a protection method for an automobile control circuit, which accurately analyzes collected and monitored data through an analysis module, avoids errors in data analysis, increases the accuracy of data analysis, increases the safety of the circuit, comprehensively analyzes and processes data information through a processing module and an evaluation module, thereby predicting the approximate time of continuous use of the circuit, avoiding damage caused by circuit damage and waste of maintenance or replacement time, reducing the working efficiency, analyzing the damaged circuit through the setting of an adjustment module, selecting the optimal replacement circuit, avoiding the influence of the damaged circuit on the operation of the whole circuit, and improving the working efficiency.
The technical problem to be solved by the invention is as follows:
(1) by means of the arrangement of the analysis module, the problem that the analysis of the electric power data in the prior art is inaccurate is solved by accurately analyzing the collected automobile circuit information and the monitored initial connecting wire temperature data, initial connecting wire diameter data, current data, resistance data, environment temperature data, air flow data, connecting wire temperature data, connecting wire diameter data, connecting wire resistance and time data;
(2) how to analyze the data of the circuit through the setting of the processing module and the evaluation module, and calculate the time required by each aspect of the circuit to reach the upper limit, so as to send out a reminding signal, thereby solving the problem that the budget cannot be carried out on the service time of the circuit in the prior art;
(3) how to extract the related data of the damaged circuit through the setting of the adjusting module, and select the shortest one of the circuit lengths as a replacement circuit according to the extracted circuit data, thereby cutting off the operation of the damaged circuit and solving the problem that the best standby circuit can not be selected quickly in the prior art;
the purpose of the invention can be realized by the following technical scheme: a method for protecting an automobile control circuit comprises the following steps:
the method comprises the following steps: the data acquisition module is used for acquiring automobile circuit information, the automobile circuit information comprises external data, internal data and environmental data, the external data comprises initial connecting line temperature data and initial connecting line diameter data, the internal data comprises current data and resistance data, and the environmental data comprises environmental temperature data and air flow data and is transmitted to the analysis module through the processor;
step two: the monitoring module is used for monitoring the temperature data, the diameter data and the time data of the connecting wire and transmitting the data to the analysis module, the time data refers to a time period from the start of the circuit to the measurement of the monitoring module, and the resistance of the connecting wire is stored in the database;
step three: the analysis module analyzes and operates initial connecting line temperature data, initial connecting line diameter data, current data, resistance data, environment temperature data, air flow data, connecting line temperature data, connecting line diameter data, connecting line resistance and time data to obtain resistance working heat production quantity Pc1, connecting line working heat production quantity Pc2, connecting line temperature difference value Ca1, connecting line diameter difference value Ca2, environment temperature data Yi, time data ti and air flow data Ui, and transmits the data to the processing module;
after receiving the resistance work heat production amount Pc1, the connecting wire work heat production amount Pc2, the connecting wire temperature difference Ca1, the connecting wire diameter difference Ca2, the environment temperature data Yi and the air flow data Ui, the processing module calculates and processes the data to obtain estimated connecting wire wear time and estimated temperature rise time, and transmits the estimated connecting wire wear time and estimated temperature rise time to the evaluation module;
step five: the evaluation module receives the estimated connection line wear time and the estimated temperature rise time, carries out evaluation analysis operation according to the estimated connection line wear time and the estimated temperature rise time to obtain a normal wear signal, a serious wear signal, an excessive wear signal, a normal temperature signal, a temperature warning signal and an overproof temperature signal, and transmits the signals to the regulation module;
step six: the database also stores connecting line data, position data of two ends of each connecting line and connecting line length data, and the adjusting module receives normal wear signals, serious wear signals, excessive wear signals, normal temperature signals, temperature warning signals and standard temperature signals, adjusts the signals according to the signals, obtains a replacement route and replaces the route.
As a further improvement of the invention: the specific operation process of the analysis operation is as follows:
k1: acquiring initial connecting line temperature data, initial connecting line diameter data, current data, resistance data, environment temperature data, connecting line resistance and air flow data, sequentially marking the data as Qi, Wi, Ei, Ti, Yi, Oi and Ui, wherein i is 1,2,3.. n, and the data correspond to one in Qi, Wi, Ei, Ti, Yi, Oi and Ui, and sequentially marking the connecting line temperature data, the connecting line diameter data and the time data as Qi, Wi and Ti;
k2: bringing the initial link temperature data together with the link temperature data into a calculation: ca1 Qi b1, where Ca1 denotes the tie line temperature difference, a1 1,2,3.. b1, the initial tie line diameter data is entered into the calculation Ca2 Wi, where Ca2 denotes the tie line diameter difference, a2 1,2,3.. b 2;
k3: acquiring current data Ei, connecting line resistance Oi and resistance data Ti in K1, and respectively substituting the current data Ei, the connecting line resistance Oi and the resistance data Ti into a calculation formula: pc1 ═ Ei2*Ti*ti,Pc2＝Ei2Ti Oi, where Pc1 represents the heat generated by the resistor in the operating state, and Pc2 represents the heat generated by the connecting wire in operation.
As a further improvement of the invention: the specific operation process of the calculation processing operation is as follows:
h1: acquiring the resistance working heat production quantity Pc1, the connecting line working heat production quantity Pc2 and the connecting line temperature difference Ca1, and bringing the values into a calculation formula: [ Pc1+ Pc2 ]. a1 ═ Ca1 (1-a2) Ui ti, where a1 represents the actual contributing factor of resistance and bond wire heat production, and a2 represents the loss factor of air flow data versus bond wire temperature;
h2: converting the above calculation formula in H1 into
Thereby calculating the actual influence value of the heat production of the resistor and the connecting wire in each time unit on the connecting wire
H3, setting a preset connecting wire temperature value D1, and substituting the actual influence value of the preset connecting wire temperature value, the resistance and the heat generation of the connecting wire into a calculation formula:
wherein, Tj represents the estimated temperature rise time;
h4: the connecting wire diameter difference value Ca2, the environmental temperature data Yi and the time data ti are obtained and are jointly substituted into a calculation formula: ca2 (Wi x (1-A3) ti (Yj-Yi) a 4) to calculate the link loss value Wi x A3 (Yj-Yi) a4 (Ca 2/ti) per time unit, wherein A3 is the wear factor of the link, Yj is the optimum preset ambient temperature, and a4 is the image factor of the ambient temperature;
h5: a preset value D2 for the wear protection is set and is entered into the calculation equation together with the loss of the connection line per time unit:
wherein Tv is the estimated link wear time.
As a further improvement of the invention: the specific operation process of the evaluation analysis operation comprises the following steps:
n1: setting a safe abrasion time F1, and comparing the safe abrasion time with the estimated abrasion time of the connecting line, wherein the method specifically comprises the following steps:
when F1 > (Tv-m1), the connecting line is judged not to reach the damaged edge yet and can still be used continuously, and a wear normal signal is generated;
when F1 is equal to (Tv-m1), the connecting line is judged to reach a damaged edge and needs to be replaced in time, and a signal of serious abrasion is generated;
when F1 < (Tv-m1), the connecting wire is judged to be damaged and needs to be replaced immediately, and an excessive wear signal is generated, wherein m1 represents the wear early warning time;
n2: setting a safe temperature rise time F2, and comparing the safe temperature rise time with the estimated temperature rise time, specifically:
when F2 > (Tj-m2), judging that the temperature does not reach the upper safety limit, allowing normal use, and generating a normal temperature signal;
when F2 is equal to (Tj-m2), the temperature is judged to reach the upper safety limit, timely adjustment processing is needed, and a temperature warning signal is generated;
and when F2 < (Tj-m2), judging that the temperature exceeds the safety upper limit, stopping the operation immediately and generating a temperature exceeding signal, wherein m2 is the temperature early warning time.
As a further improvement of the invention: the specific operation process of the adjusting operation comprises the following steps:
g1: connecting line data is acquired and marked as Mcz, c1, 2,3.. g, z 1,2, wherein c represents each connecting line and z represents both ends of the connecting line;
g2: establishing a virtual rectangular coordinate system, acquiring connecting line data and position data of two ends of each connecting line, and marking the connecting lines in the virtual rectangular coordinate system;
g3: normal signal of wearing and tearing, the serious signal of wearing and tearing, the excessive signal of wearing and tearing, the normal signal of temperature, temperature warning signal and the temperature signal that exceeds standard of discernment evaluation module transmission, when discerning the normal signal of wearing and tearing and the normal signal of temperature, then do not operate the connecting wire, when discerning the serious signal of wearing and tearing, the excessive signal of wearing and tearing, temperature warning signal and temperature signal that exceeds standard, then detect the operation to the connecting wire, specifically do:
gt 1: identifying a damaged connecting line in a virtual rectangular coordinate system, processing two ends of the connecting line, cutting off the operation of the connecting line, reading coordinates of the two ends of the connecting line, and respectively marking the coordinates of the two ends of the connecting line as a first detection coordinate point and a second detection coordinate point;
gt 2: selecting a connecting line with a first detection coordinate point and a second detection coordinate point, identifying a coordinate point at the other end of the connecting line with the first detection coordinate point or the second detection coordinate point, marking the coordinate point as a third detection coordinate point, repeating the coordinate point identification operation, finally sorting out each line, and acquiring length data of each connecting line in each line;
gt 3: and calculating total length data of the connecting lines in each line, and preferentially selecting the line with the shortest total length of the connecting lines for substitution.
The invention has the beneficial effects that:
(1) the data acquisition module is used for acquiring automobile circuit information, the automobile circuit information comprises external data, internal data and environmental data, the external data, the internal data and the environmental data are transmitted to the analysis module through the processor, the monitoring module is used for monitoring connecting wire temperature data, connecting wire diameter data and time data and transmitting the connecting wire diameter data and the time data to the analysis module, the time data refers to a time period from the beginning of a circuit to the measurement of the monitoring module, connecting wire resistors are stored in the database, the analysis module analyzes the initial connecting wire temperature data, the initial connecting wire diameter data, current data, resistance data, environmental temperature data, air flow data, connecting wire temperature data, connecting wire diameter data, connecting wire resistors and time data, and the acquired automobile circuit information and the monitored initial connecting wire temperature data, the internal data and the environmental data are analyzed through the arrangement of the analysis module, The initial connecting wire diameter data, the current data, the resistance data, the environment temperature data, the air flow data, the connecting wire temperature data, the connecting wire diameter data, the connecting wire resistance and the time data are accurately analyzed, errors in data analysis are avoided, the accuracy of data analysis is improved, and the safety of a circuit is improved.
(2) After receiving the working heat production of the resistor, the working heat production of the connecting line, the temperature difference of the connecting line, the diameter difference of the connecting line, the environmental temperature data and the air flow data, the processing module calculates the working heat production of the connecting line, the estimated wear time of the connecting line and the estimated temperature rise time and transmits the estimated wear time of the connecting line and the estimated temperature rise time to the evaluation module, the evaluation module receives the estimated wear time of the connecting line and the estimated temperature rise time and performs evaluation analysis operation according to the estimated wear time and the estimated temperature rise time to obtain a normal wear signal, a serious wear signal, an excessive wear signal, a normal temperature signal, a temperature warning signal and an over-standard temperature signal and transmits the signals to the regulation module, the data of the circuit is analyzed through the arrangement of the processing module and the evaluation module, and the time required by each aspect of the circuit, the circuit is prevented from being damaged, the maintenance or replacement time is wasted, and the working efficiency is reduced.
(3) The adjusting module receives the normal wear signal, the serious wear signal, the excessive wear signal, the normal temperature signal, the temperature warning signal and the standard exceeding temperature signal, adjusts according to the normal wear signal, obtains a replacement circuit and replaces the replacement circuit, extracts relevant data of a damaged circuit through the setting of the adjusting module, selects one circuit with the shortest length as the replacement circuit according to the extracted circuit data, accordingly cuts off the operation of the damaged circuit, avoids the damaged circuit from influencing the operation of the whole circuit, and improves the working efficiency.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
The invention relates to a method for protecting an automobile control circuit, which comprises the following steps:
the method comprises the following steps: the data acquisition module is used for acquiring automobile circuit information, the automobile circuit information comprises external data, internal data and environment data, the external data comprises initial connecting line temperature data and initial connecting line diameter data, the internal data comprises current data and resistance data, and the environment data comprises environment temperature data and air flow data and is transmitted to the analysis module through the processor;
step two: the monitoring module is used for monitoring connecting line temperature data, connecting line diameter data and time data and transmitting the connecting line temperature data, the connecting line diameter data and the time data to the analysis module, the time data refers to a time period from the start of a circuit to the measurement of the monitoring module, and connecting line resistance is stored in the database;
step three: the analysis module carries out analysis operation on initial connecting wire temperature data, initial connecting wire diameter data, current data, resistance data, environment temperature data, air flow data, connecting wire temperature data, connecting wire diameter data, connecting wire resistance and time data, and the specific operation process of the analysis operation is as follows:
k1: acquiring initial connecting line temperature data, initial connecting line diameter data, current data, resistance data, environment temperature data, connecting line resistance and air flow data, sequentially marking the data as Qi, Wi, Ei, Ti, Yi, Oi and Ui, wherein i is 1,2,3.. n, and the data correspond to one in Qi, Wi, Ei, Ti, Yi, Oi and Ui, and sequentially marking the connecting line temperature data, the connecting line diameter data and the time data as Qi, Wi and Ti;
k2: bringing the initial link temperature data together with the link temperature data into a calculation: ca1 Qi b1, where Ca1 denotes the tie line temperature difference, a1 1,2,3.. b1, the initial tie line diameter data is entered into the calculation Ca2 Wi, where Ca2 denotes the tie line diameter difference, a2 1,2,3.. b 2;
k3: acquiring current data Ei, connecting line resistance Oi and resistance data Ti in K1, and respectively carrying the current data Ei, the connecting line resistance Oi and the resistance data TiEntering into a calculation formula: pc1 ═ Ei2*Ti*ti,Pc2＝Ei2Ti Oi, where Pc1 represents the heat generated by the resistor in the operating state, and Pc2 represents the heat generated by the connecting wire in operation;
k4: the resistance working heat production amount Pc1, the connecting wire working heat production amount Pc2, the connecting wire temperature difference Ca1, the connecting wire diameter difference Ca2, the environment temperature data Yi, the time data ti and the air flow data Ui are transmitted to the processing module together;
step four: after receiving the resistance work heat production amount Pc1, the connecting wire work heat production amount Pc2, the connecting wire temperature difference Ca1, the connecting wire diameter difference Ca2, the environment temperature data Yi and the air flow data Ui, the processing module performs calculation processing operation on the data, and the specific operation process of the calculation processing operation is as follows:
h1: acquiring the resistance working heat production quantity Pc1, the connecting line working heat production quantity Pc2 and the connecting line temperature difference Ca1, and bringing the values into a calculation formula: [ Pc1+ Pc2 ]. a1 ═ Ca1 (1-a2) Ui ti, where a1 represents the actual contributing factor of resistance and bond wire heat production, and a2 represents the loss factor of air flow data versus bond wire temperature;
h2: converting the above calculation formula in H1 into
Thereby calculating the actual influence value of the heat production of the resistor and the connecting wire in each time unit on the connecting wire
H3, setting a preset connecting wire temperature value D1, and substituting the actual influence value of the preset connecting wire temperature value, the resistance and the heat generation of the connecting wire into a calculation formula:
wherein, Tj represents the estimated temperature rise time;
h4: the connecting wire diameter difference value Ca2, the environmental temperature data Yi and the time data ti are obtained and are jointly substituted into a calculation formula: ca2 (Wi x (1-A3) ti (Yj-Yi) a 4) to calculate the link loss value Wi x A3 (Yj-Yi) a4 (Ca 2/ti) per time unit, wherein A3 is the wear factor of the link, Yj is the optimum preset ambient temperature, and a4 is the image factor of the ambient temperature;
h5: a preset value D2 for the wear protection is set and is entered into the calculation equation together with the loss of the connection line per time unit:
wherein, Tv is the estimated connecting line abrasion time;
h6: transmitting the estimated connection line wear time and the estimated temperature rise time to an evaluation module;
step five: the evaluation module receives the estimated connecting line wear time and the estimated temperature rise time and carries out evaluation analysis operation according to the estimated connecting line wear time and the estimated temperature rise time, wherein the specific operation process of the evaluation analysis operation is as follows:
n1: setting a safe abrasion time F1, and comparing the safe abrasion time with the estimated abrasion time of the connecting line, wherein the method specifically comprises the following steps:
when F1 > (Tv-m1), the connecting line is judged not to reach the damaged edge yet and can still be used continuously, and a wear normal signal is generated;
when F1 is equal to (Tv-m1), the connecting line is judged to reach a damaged edge and needs to be replaced in time, and a signal of serious abrasion is generated;
when F1 < (Tv-m1), the connecting wire is judged to be damaged and needs to be replaced immediately, and an excessive wear signal is generated, wherein m1 represents the wear early warning time;
n2: setting a safe temperature rise time F2, and comparing the safe temperature rise time with the estimated temperature rise time, specifically:
when F2 > (Tj-m2), judging that the temperature does not reach the upper safety limit, allowing normal use, and generating a normal temperature signal;
when F2 is equal to (Tj-m2), the temperature is judged to reach the upper safety limit, timely adjustment processing is needed, and a temperature warning signal is generated;
when F2 is less than (Tj-m2), the temperature is judged to exceed the safety upper limit, the operation needs to be stopped immediately, and a temperature exceeding signal is generated, wherein m2 is temperature early warning time;
n3: transmitting a normal wear signal, a serious wear signal, an excessive wear signal, a normal temperature signal, a temperature warning signal and an overproof temperature signal to an adjusting module;
step six: still store connecting wire data, the position data and the connecting wire length data at each connecting wire both ends in the database, adjusting module receives normal signal of wearing and tearing, serious signal of wearing and tearing, excessive signal of wearing and tearing, normal signal of temperature, temperature warning signal and temperature signal that exceeds standard to adjust the operation according to it, the concrete operation process of adjusting the operation is:
g1: connecting line data is acquired and marked as Mcz, c1, 2,3.. g, z 1,2, wherein c represents each connecting line and z represents both ends of the connecting line;
g2: establishing a virtual rectangular coordinate system, acquiring connecting line data and position data of two ends of each connecting line, and marking the connecting lines in the virtual rectangular coordinate system;
g3: normal signal of wearing and tearing, the serious signal of wearing and tearing, the excessive signal of wearing and tearing, the normal signal of temperature, temperature warning signal and the temperature signal that exceeds standard of discernment evaluation module transmission, when discerning the normal signal of wearing and tearing and the normal signal of temperature, then do not operate the connecting wire, when discerning the serious signal of wearing and tearing, the excessive signal of wearing and tearing, temperature warning signal and temperature signal that exceeds standard, then detect the operation to the connecting wire, specifically do:
gt 1: identifying a damaged connecting line in a virtual rectangular coordinate system, processing two ends of the connecting line, cutting off the operation of the connecting line, reading coordinates of the two ends of the connecting line, and respectively marking the coordinates of the two ends of the connecting line as a first detection coordinate point and a second detection coordinate point;
gt 2: selecting a connecting line with a first detection coordinate point and a second detection coordinate point, identifying a coordinate point at the other end of the connecting line with the first detection coordinate point or the second detection coordinate point, marking the coordinate point as a third detection coordinate point, repeating the coordinate point identification operation, finally sorting out each line, and acquiring length data of each connecting line in each line;
gt 3: and calculating total length data of the connecting lines in each line, and preferentially selecting the line with the shortest total length of the connecting lines for substitution.
When the automobile circuit monitoring device works, the data acquisition module is used for acquiring automobile circuit information, the automobile circuit information comprises external data, internal data and environment data, the external data comprises initial connecting wire temperature data and initial connecting wire diameter data, the internal data comprises current data and resistance data, the environment data comprises environment temperature data and air flow data, the environment temperature data and the air flow data are transmitted to the analysis module through the processor, the monitoring module is used for monitoring the connecting wire temperature data, the connecting wire diameter data and the time data and transmitting the data to the analysis module, the time data refers to a time period from the beginning of working of a circuit to the measurement of the monitoring module, connecting wire resistance is stored in the database, and the analysis module is used for analyzing the initial connecting wire temperature data, the initial connecting wire diameter data, the current data, the resistance data, the environment temperature data, the air flow data, analyzing the connecting line temperature data, the connecting line diameter data, the connecting line resistor and the time data to obtain the working heat production quantity of the resistor, the working heat production quantity of the connecting line, the connecting line temperature difference value, the connecting line diameter difference value, the environment temperature data, the time data and the air flow data, transmitting the data to the processing module, calculating and processing the data by the processing module after receiving the working heat production quantity of the resistor, the working heat production quantity of the connecting line, the connecting line temperature difference value, the connecting line diameter difference value, the environment temperature data and the air flow data to obtain estimated connecting line wear time and estimated temperature rise time, transmitting the estimated connecting line wear time and the estimated temperature rise time to the evaluation module, receiving the estimated connecting line wear time and the estimated temperature rise time by the evaluation module, and carrying out evaluation and analysis operation according to obtain a normal wear signal, a serious wear, The system comprises a data base, a data base and an adjusting module, wherein the data base is used for storing connecting line data, position data of two ends of each connecting line and connecting line length data, the adjusting module is used for receiving the normal wearing signal, the serious wearing signal, the excessive wearing signal, the normal temperature signal, the warning temperature signal and the exceeding temperature signal, adjusting operation is carried out according to the normal wearing signal, the serious wearing signal, the excessive wearing signal, the normal temperature signal, the warning temperature signal and the exceeding temperature signal, a replacing route is.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (5)
1. A method for protecting an automobile control circuit is characterized by comprising the following steps:
the method comprises the following steps: the data acquisition module is used for acquiring automobile circuit information, the automobile circuit information comprises external data, internal data and environmental data, the external data comprises initial connecting line temperature data and initial connecting line diameter data, the internal data comprises current data and resistance data, and the environmental data comprises environmental temperature data and air flow data and is transmitted to the analysis module through the processor;
step two: the monitoring module is used for monitoring the temperature data, the diameter data and the time data of the connecting wire and transmitting the data to the analysis module, the time data refers to the time period from the start of the circuit to the measurement of the monitoring module, and the resistance of the connecting wire is stored in the database;
step three: the analysis module analyzes and operates initial connecting line temperature data, initial connecting line diameter data, current data, resistance data, environment temperature data, air flow data, connecting line temperature data, connecting line diameter data, connecting line resistance and time data to obtain resistance working heat production quantity Pc1, connecting line working heat production quantity Pc2, connecting line temperature difference value Ca1, connecting line diameter difference value Ca2, environment temperature data Yi, time data ti and air flow data Ui, and transmits the data to the processing module;
after receiving the resistance work heat production amount Pc1, the connecting wire work heat production amount Pc2, the connecting wire temperature difference Ca1, the connecting wire diameter difference Ca2, the environment temperature data Yi and the air flow data Ui, the processing module calculates and processes the data to obtain estimated connecting wire wear time and estimated temperature rise time, and transmits the estimated connecting wire wear time and estimated temperature rise time to the evaluation module;
step five: the evaluation module receives the estimated connection line wear time and the estimated temperature rise time, carries out evaluation analysis operation according to the estimated connection line wear time and the estimated temperature rise time to obtain a normal wear signal, a serious wear signal, an excessive wear signal, a normal temperature signal, a temperature warning signal and an overproof temperature signal, and transmits the signals to the regulation module;
step six: the database also stores connecting line data, position data of two ends of each connecting line and connecting line length data, and the adjusting module receives normal wear signals, serious wear signals, excessive wear signals, normal temperature signals, temperature warning signals and standard temperature signals, adjusts the signals according to the signals, obtains a replacement route and replaces the route.
2. The method for protecting an automobile control circuit according to claim 1, wherein the specific operation process of the analysis operation is as follows:
k1: acquiring initial connecting line temperature data, initial connecting line diameter data, current data, resistance data, environment temperature data, connecting line resistance and air flow data, sequentially marking the data as Qi, Wi, Ei, Ti, Yi, Oi and Ui, wherein i is 1,2,3.. n, and the Qi, Wi, Ei, Ti, Yi, Oi and Ui correspond to one another one by one, and sequentially marking the connecting line temperature data, the connecting line diameter data and the time data as Qi, Wi and Ti;
k2: bringing the initial link temperature data together with the link temperature data into a calculation: ca1 Qi, Ca1 indicating the difference in link temperature, a1 1,2,3.. b1, the initial link diameter data is entered into the calculation Ca2 Wi, Ca2 indicating the difference in link diameter, a2 1,2,3.. b 2;
k3: acquiring current data Ei, connecting line resistance Oi and resistance data Ti in K1, and obtainingWhich are respectively substituted into the calculation formulas: pc1 ═ Ei2*Ti*ti,Pc2＝Ei2Ti Oi, where Pc1 represents the heat generated by the resistor in the operating state, and Pc2 represents the heat generated by the connecting wire in operation.
3. The method for protecting the control circuit of the automobile according to claim 1, wherein the specific operation process of the calculation processing operation is as follows:
h1: acquiring the resistance working heat production quantity Pc1, the connecting line working heat production quantity Pc2 and the connecting line temperature difference Ca1, and bringing the values into a calculation formula: [ Pc1+ Pc2 ]. a1 ═ Ca1 (1-a2) Ui ti, where a1 represents the actual contributing factor of resistance and bond wire heat production, and a2 represents the loss factor of air flow data versus bond wire temperature;
h2: converting the above calculation formula in H1 into
Thereby calculating the actual influence value of the heat production of the resistor and the connecting wire in each time unit on the connecting wire
H3, setting a preset connecting wire temperature value D1, and substituting the actual influence value of the preset connecting wire temperature value, the resistance and the heat generation of the connecting wire into a calculation formula:
wherein, Tj represents the estimated temperature rise time;
h4: the connecting wire diameter difference value Ca2, the environmental temperature data Yi and the time data ti are obtained and are jointly substituted into a calculation formula: ca2 (Wi x (1-A3) ti (Yj-Yi) a 4) to calculate the link loss value Wi x A3 (Yj-Yi) a4 (Ca 2/ti) per time unit, wherein A3 is the wear factor of the link, Yj is the optimum preset ambient temperature, and a4 is the image factor of the ambient temperature;
h5: a preset value of wear protection D2 is set and associated with each timeThe values of the loss of the connection lines in the unit are taken into the calculation formula together:
wherein Tv is the estimated link wear time.
4. The method for protecting an automobile control circuit according to claim 1, wherein the specific operation process of the evaluation analysis operation is as follows:
n1: setting a safe abrasion time F1, and comparing the safe abrasion time with the estimated abrasion time of the connecting line, wherein the method specifically comprises the following steps:
when F1 > (Tv-m1), the connecting line is judged not to reach the damaged edge yet and can still be used continuously, and a wear normal signal is generated;
when F1 is equal to (Tv-m1), the connecting line is judged to reach a damaged edge and needs to be replaced in time, and a signal of serious abrasion is generated;
when F1 < (Tv-m1), the connecting wire is judged to be damaged and needs to be replaced immediately, and an excessive wear signal is generated, wherein m1 represents the wear early warning time;
n2: setting a safe temperature rise time F2, and comparing the safe temperature rise time with the estimated temperature rise time, specifically:
when F2 > (Tj-m2), judging that the temperature does not reach the upper safety limit, allowing normal use, and generating a normal temperature signal;
when F2 is equal to (Tj-m2), the temperature is judged to reach the upper safety limit, and timely adjustment processing is needed to generate a temperature warning signal;
and when F2 < (Tj-m2), judging that the temperature exceeds the safety upper limit, stopping the operation immediately and generating a temperature exceeding signal, wherein m2 is the temperature early warning time.
5. The method for protecting the control circuit of the automobile according to claim 1, wherein the specific operation process of the adjusting operation is as follows:
g1: connecting line data is acquired and marked as Mcz, c1, 2,3.. g, z 1,2, wherein c represents each connecting line and z represents both ends of the connecting line;
g2: establishing a virtual rectangular coordinate system, acquiring connecting line data and position data of two ends of each connecting line, and marking the connecting lines in the virtual rectangular coordinate system;
g3: normal signal of wearing and tearing, the serious signal of wearing and tearing, the excessive signal of wearing and tearing, the normal signal of temperature, temperature warning signal and the temperature signal that exceeds standard of discernment evaluation module transmission, when discerning the normal signal of wearing and tearing and the normal signal of temperature, then do not operate the connecting wire, when discerning the serious signal of wearing and tearing, the excessive signal of wearing and tearing, temperature warning signal and temperature signal that exceeds standard, then detect the operation to the connecting wire, specifically do:
gt 1: identifying a damaged connecting line in a virtual rectangular coordinate system, processing two ends of the connecting line, cutting off the operation of the connecting line, reading coordinates of the two ends of the connecting line, and respectively marking the coordinates of the two ends of the connecting line as a first detection coordinate point and a second detection coordinate point;
gt 2: selecting a connecting line with a first detection coordinate point and a second detection coordinate point, identifying a coordinate point at the other end of the connecting line with the first detection coordinate point or the second detection coordinate point, marking the coordinate point as a third detection coordinate point, repeating the coordinate point identification operation, finally sorting out each line, and acquiring length data of each connecting line in each line;
gt 3: and calculating total length data of the connecting lines in each line, and preferentially selecting the line with the shortest total length of the connecting lines for substitution.
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| CN201911337397.2A CN111038417A (en) | 2019-12-23 | 2019-12-23 | Automobile control circuit protection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112886906A (en) * | 2021-01-25 | 2021-06-01 | 安徽金晥泵业科技股份有限公司 | Water pump motor intelligence control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112886906A (en) * | 2021-01-25 | 2021-06-01 | 安徽金晥泵业科技股份有限公司 | Water pump motor intelligence control system |
| CN112886906B (en) * | 2021-01-25 | 2022-11-01 | 安徽金晥泵业科技股份有限公司 | Water pump motor intelligence control system |
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Application publication date: 20200421 |