CN111923853A - Dual-power police tool system for police car and control method thereof - Google Patents
Dual-power police tool system for police car and control method thereof Download PDFInfo
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- CN111923853A CN111923853A CN202011094716.4A CN202011094716A CN111923853A CN 111923853 A CN111923853 A CN 111923853A CN 202011094716 A CN202011094716 A CN 202011094716A CN 111923853 A CN111923853 A CN 111923853A
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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
- B60R16/03—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 supply of electrical power to vehicle subsystems or for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
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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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- 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
- B60R16/03—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 supply of electrical power to vehicle subsystems or for
- B60R16/033—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 supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a dual-power police system for a police car and a control method thereof, belonging to the technical field of police control, wherein the dual-power police system can intelligently judge the electric quantity conditions of a whole car storage battery and the police storage battery, and automatically select the operation mode of the police system according to the fuel oil level, the engine operation state and the whole car running state: when the storage battery is in power shortage, under the condition of ensuring the safety of a driver and the maneuverability of the whole vehicle, the engine is automatically started to charge the storage battery of the whole vehicle and the storage battery of the alarm, and the operation of the engine is automatically stopped after the charging is finished; when the automatic charging condition is not met, only the police tool storage battery is used for supplying power to the police tool, meanwhile, the working mode of the police tool is automatically adjusted, and the working time of the police tool is prolonged as much as possible on the premise of ensuring the maneuverability of the whole vehicle. Meanwhile, the system also has the functions of fault self-diagnosis and reminding, so that the fault of the power supply system is prevented from influencing the maneuvering of the police car and the normal work of the police tool.
Description
Technical Field
The invention belongs to the technical field of police gear control, and particularly relates to a dual-power police gear system for a police car and a control method thereof.
Background
Traditional dual supply police tools system, only two blocks of storage batteries connect in parallel and supply power for whole car and police tools, under the parking state, the following condition probably appears: the normal starting of the whole vehicle is influenced because the power shortage of the battery of the whole vehicle and the battery of the police tool is serious due to the long-time use of the police tool; the engine charges the storage battery for a long time, so that fuel oil shortage of the whole vehicle is caused, and the maneuvering distance of the police vehicle is influenced. The above situations can affect the timely processing of the warning situation.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a dual-power police tool system for a police car, which can prolong the working time of the police tool for the car as much as possible and ensure the maneuvering driving distance of the police car under the condition of ensuring the electric quantity of a storage battery to meet the starting of the whole car. The invention also discloses a control method of the system.
The technical scheme is as follows: in order to achieve the purpose, the invention adopts the following technical scheme:
a dual-power police system for a police car comprises a police intelligent controller, a whole car storage battery and a police storage battery, wherein the police intelligent controller comprises a single chip microcomputer, a police control transistor and a police storage battery relay driving module; the intelligent police gear controller is respectively connected with the police gear switch and the manual operation switch; the police tool intelligent controller intelligently controls the parallel connection and disconnection of the whole vehicle storage battery and the police tool storage battery and controls the working mode of the police tool according to the electric quantity of the whole vehicle storage battery and the police tool storage battery, and controls the automatic charging and stopping of the whole vehicle storage battery and the police tool storage battery according to the states of the engine and the whole vehicle. The intelligent controller of the police gear is connected with the automatic power system fault detection button, and the intelligent controller of the police gear automatically detects the power system fault.
Further, the alarm device also comprises a front alarm lamp, a rear alarm lamp and a vertical rod alarm lamp which are connected with the storage battery of the alarm device; the police gear control transistor comprises a vertical rod warning lamp control transistor, a front warning lamp control transistor and a rear warning lamp control transistor; the vertical rod warning lamp is connected with the vertical rod warning lamp control transistor, and the front warning lamp is connected with the front warning lamp control transistor; the rear warning lamp is connected with the rear warning lamp control transistor.
Furthermore, the single chip microcomputer is respectively connected with an engine rotating speed sensor, a neutral position switch, a vehicle speed sensor, a manual operation switch, a warning tool switch, an ECU (electronic control Unit), a fuel oil level sensor and a current sensor.
Furthermore, the whole vehicle storage battery is connected with the starting relay and the starting relay driving module, the starting relay driving module is connected with the single chip microcomputer, the single chip microcomputer controls the self-starting of the engine through the starting relay, whether the starting of the engine is successful or not is judged through the engine rotating speed sensor, and the stopping of the engine is controlled through the ECU.
Furthermore, the current sensor is respectively connected with a police tool storage battery and a rectifier.
Furthermore, the single chip microcomputer is respectively connected with a storage battery inspection reminding lamp, a storage battery replacement indicating lamp, a charging circuit fault indicating lamp and a power system fault automatic detection button.
The whole vehicle storage battery supplies power to a starting relay, a starting relay driving module, a storage battery relay driving module and a single chip microcomputer of the police appliance storage battery relay. The power supply mode ensures that the police tool intelligent controller, the starting relay and the storage battery relay can still work normally when the police tool storage battery is seriously lack of power.
Further, the control method of the dual-power police system for the police car is characterized by comprising the following steps:
s1, the intelligent police ware controller scans the states of the police ware switch and the manual operation switch; when the police gear switch and the manual operation switch are closed at the same time, the dual-power police gear system for the police car enters a manual control mode; the manual control mode does not consider the maneuverability of the whole vehicle, the storage battery of the whole vehicle and the storage battery of the police gear directly supply power to the front warning lamp, the rear warning lamp and the vertical post warning lamp after being connected in parallel through the relay of the storage battery of the police gear, and the front warning lamp, the rear warning lamp and the vertical post warning lamp flicker according to the normal working frequency;
s2, when the three conditions are met, the dual-power police system for the police car enters an automatic operation mode;
1) the switch of the police gear is closed but the manual operation switch is not closed;
2) the engine speed sensor does not output continuous square wave signals or the set value of the signal frequency;
3) the voltage value of the police gear storage battery or the whole vehicle storage battery is lower than a set value 1;
the automatic operation mode comprises two modes of power-shortage work and automatic charging work;
s2-1, power-deficient working mode
When the neutral switch in the automatic operation mode does not output a low level or the fuel level transmitted by the fuel level sensor is not more than a set value, the dual-power police system for the police car operates according to a power-shortage working mode; the intelligent police gear controller disconnects the storage battery of the whole vehicle from the storage battery of the police gear, the storage battery of the whole vehicle keeps enough electric quantity to meet the starting requirement of the whole vehicle, and the storage battery of the police gear supplies power for the front warning lamp, the rear warning lamp and the vertical rod warning lamp independently; the intelligent police gear controller detects the terminal voltage of the police gear storage battery, divides the police gear storage battery into three states of common power shortage, medium power shortage and severe power shortage, and adjusts the working modes of the front warning lamp, the rear warning lamp and the vertical rod warning lamp according to the power shortage state of the police gear storage battery; the front warning lamp, the rear warning lamp and the vertical post warning lamp work according to normal flashing frequency when the power is insufficient; when the electricity is in a medium shortage state, the front warning lamp and the rear warning lamp are turned off, and the vertical rod warning lamp works according to a normal flashing frequency; when the electricity is severely deficient, the front warning lamp and the rear warning lamp are turned off, and the vertical rod warning lamp works in a low-frequency flickering state;
s2-2 automatic charging working mode
When the neutral switch in the automatic operation mode outputs a low level and the fuel level transmitted by the fuel level sensor is greater than a set value, the dual-power police system for the police car operates according to an automatic charging working mode in the automatic operation mode; the police tool intelligent controller controls the starting motor to start the engine through the starting relay; the whole vehicle storage battery and the police gear storage battery are connected in parallel, the engine charges the whole vehicle storage battery and the police gear storage battery, and the front warning lamp, the rear warning lamp and the vertical rod warning lamp work according to normal flashing frequency; the method comprises the following steps that an engine runs in a circulating mode, a whole vehicle storage battery and a police gear storage battery are continuously charged, in the circulating process, a police gear intelligent controller scans signals of a fuel oil level sensor, a manual operation switch, a police gear switch and a current sensor, when the fact that the fuel oil level is lower than a set value or the signal of the current sensor is smaller than the set value is detected, whether a police car is in a running state or not is judged through a vehicle speed sensor, and if the police car is not in the running state, the police gear intelligent controller stops the engine through an ECU; if the police car is in a running state, the engine keeps running, and the intelligent police car controller skips to scan the state of a police car switch; when a closing signal of a manual operation switch is detected in the charging cycle process, the dual-power police system for the police car jumps to a manual control mode; when the disconnection signal of the warning device switch is detected in the charging cycle process, the warning device intelligent controller closes the front warning lamp, the rear warning lamp and the vertical rod warning lamp and skips to scan the state of the warning device switch.
Furthermore, the dual-power police system for the police car has the self-diagnosis and prompt functions of the power system; wherein, U1The terminal voltage of the whole vehicle storage battery is the terminal voltage of the whole vehicle storage battery under the state that the engine does not run, the electric appliance load of the whole vehicle and the police tool are closed; u shape2The terminal voltage of the police gear storage battery is the terminal voltage of the police gear storage battery under the state that the engine does not run, the electric appliance load of the whole vehicle and the police gear is closed; u shape3For the operation of an engine, the load of the electric appliance of the whole vehicle and the charging voltage output by the rectifier under the state of alarm off; i is1The t second charging current average value of a whole vehicle storage battery and a police gear storage battery which are connected in parallel is obtained; i is2The average value of t second charging current of the storage battery of the single alarm device is obtained;
the power supply system self-diagnosis and prompt function work flow is as follows:
1) all the electric appliance loads and the police tools of the whole vehicle are closed, the electric lock of the whole vehicle is opened, and the single chip microcomputer acquires U1 、U2And respectively storing the data in a storage unit A and a storage unit B;
2) if U is present1Or U2The value of the voltage is less than the set value 3, which indicates that the storage battery of the whole vehicle or the storage battery of the police tool is seriously insufficient, and the storage battery inspection reminding lamp is lightened;
3) pressing down a power supply system fault automatic detection button, starting an engine by an intelligent alarm controller, judging whether the engine is started successfully or not, and stopping a starting motor by the intelligent alarm controller after the engine is started successfully;
4) singlechip acquisition U3And storing the data in a storage unit C;
5) if U is present3If the current is less than the set value 4 or greater than the set value 5, judging that the rectifier or the magneto is faulty, and lighting a fault indicator lamp of the charging circuit to remind the inspection;
6) the singlechip controls the whole vehicle storage battery police tool storage battery to be connected in parallel, and collects and calculates the charging current I1；
7) The singlechip controls the alarm of the whole vehicle storage battery to disconnect the parallel connection, and collects and calculates the charging current I2；
8) If U is present3Greater than a set value of 4, but I2If the current value is less than the set value, the fault of the storage battery of the police tool is judged, and the storage battery replacement indicating lamp is lightened to remind the police tool of replacing the storage battery; if U is present3Greater than a set value of 4, but I1-I2If the value of the voltage is less than the set value, the fault of the storage battery of the whole vehicle is judged, and the storage battery replacement indicator lamp is in quick flash to remind a user of replacing the storage battery of the whole vehicle; if U is present3Greater than a set value of 4, but I1If the value of the alarm is smaller than the set value, the faults of the whole vehicle storage battery and the alarm storage battery are judged, the storage battery replacement indicator lamp slowly flashes to remind that the whole vehicle storage battery and the alarm storage battery are replaced.
Has the advantages that: compared with the prior art, the method can intelligently judge the electric quantity conditions of the storage battery of the whole vehicle and the storage battery of the alarm device, and automatically select the operation mode of the alarm device system according to the fuel condition, the engine running state and the running state of the whole vehicle. When the storage battery is in power shortage, under the condition of ensuring the safety of drivers and the maneuverability of the whole vehicle, the engine is automatically started to charge the whole vehicle and the alarm storage battery, and the operation of the engine is automatically stopped after the charging is finished; when the automatic charging condition is not met, the invention only uses the storage battery of the police gear to supply power to the police gear, and simultaneously automatically adjusts the working mode of the police gear, and under the premise of ensuring the mobility of the police car, the working time of the police gear is prolonged as much as possible by adjusting the working mode of the police gear. Meanwhile, the intelligent police device controller is connected with the automatic power system fault detection button, automatically detects the power system fault, has the functions of fault self-diagnosis and reminding, and avoids the power system fault from influencing the normal work of the police car motor and the police device. The invention can also be switched from the automatic running mode to the manual control mode in real time by operators according to actual conditions. The invention also provides a single storage battery fault diagnosis mode of the parallel storage battery pack, and overcomes the defect that the existing storage battery pack fault diagnosis technology can only diagnose the whole storage battery pack. The invention effectively improves the reliability of the police car and the police tool, simplifies the maintenance difficulty of the power supply system of the police car and ensures the maneuvering performance of the police car.
Drawings
FIG. 1 is a schematic diagram of a dual-power police system for a police car;
FIG. 2 is an internal schematic view of an intelligent police gear controller;
FIG. 3 is a flow chart of a control method of a dual-power police tool for a police car;
reference numerals: 1-a rectifier; 2-a magneto; 3-engine speed sensor; 4-neutral switch; 5-vehicle speed sensor; 6-manual operation switch; 7-a police switch; 8-police intelligent controller; 9-fuel level sensor; 10-vertical bar alarm lamp; 11-front warning light; 12-rear warning light; 13-a starting relay; 14-starting the motor; 15-vehicle storage battery; 16-police battery relay; 17-police gear battery; 18-an ECU; 19-a current sensor; 20-a single chip microcomputer; 21-vertical bar alarm lamp control transistor; 22-start relay drive module; 23-police gear accumulator relay driving module; 24-battery check warning light; 25-battery replacement indicator light; 26-charging circuit fault indicator light; 27-front warning light control transistor; 28-rear warning light control transistor; power system failure automatic detection button 29.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments.
As shown in fig. 1, a dual-power police system for police car comprises: a rectifier 1; a magneto 2; an engine speed sensor 3; a neutral switch 4; a vehicle speed sensor 5; a manual operation switch 6; a police switch 7; an intelligent police equipment controller 8; a fuel level sensor 9; a vertical post warning light 10; a front warning light 11; a rear warning light 12; a start relay 13; a starter motor 14; a vehicle storage battery 15; a police gear battery relay 16; a police gear battery 17; an ECU 18; power system failure automatic detection button 29.
As shown in fig. 2. The intelligent police ware controller 8 comprises the following main components: the device comprises a current sensor 19, a singlechip 20, a vertical rod warning lamp control transistor 21, a starting relay driving module 22, a warning device storage battery relay driving module 23 and a storage battery inspection reminding lamp 24; a battery replacement indicator lamp 25; a charging circuit fault indicator lamp 26; a front warning lamp control transistor 27; the rear warning lamp controls transistor 28.
The positive pole of the whole vehicle storage battery 15 is connected with the e2 end and the C2 end of the police gear storage battery relay 16, the e3 end and the C3 end of the starting relay 13, the Vbat pin of the single chip microcomputer 20, the Vbat pin of the starting relay driving module 22, the Vbat pin of the police gear storage battery relay driving module 23 and the positive pole end of the fuel oil level sensor 9.
The positive pole of the police gear storage battery 17 is connected with the e1 end of the police gear storage battery relay 16, the positive pole of the front warning lamp 11, the positive pole of the rear warning lamp 12, the positive pole of the vertical post warning lamp 10, the IP-pin of the current sensor 19 and the Vbat1 pin of the single chip microcomputer 20.
The e4 terminal of the starter relay 13 is connected to the positive terminal of the starter motor 14, and the C4 terminal of the starter relay 13 is connected to the C4i terminal of the starter relay drive module 22.
The end C1 of the police gear battery relay 16 is connected with the end C1i of the police gear battery relay driving module 23.
The IP + pin of the current sensor 19 is connected with the Rout end of the rectifier 1, and the Viout pin of the current sensor 19 is connected with the AD2 pin of the singlechip 20.
The three-phase output of the magneto 2 is connected to the In1, In2 and In3 terminals of the rectifier 1.
The svcc pin of the engine speed sensor 3 is connected with the VCC pin of the singlechip 20 and the svcc pin of the vehicle speed sensor 5, the sgnd pin of the engine speed sensor 3 is connected with the GND pin of the singlechip 20 and the sgnd pin of the vehicle speed sensor 5, and the sout pin of the engine speed sensor 3 is connected with the IO9 pin of the singlechip 20.
One end of the neutral switch 4 is connected with an IO11 pin of the single chip microcomputer 20.
And a pout pin of the vehicle speed sensor 5 is connected with an IO8 pin of the single chip microcomputer 20.
One end of the manual operation switch 6 is connected with an IO7 pin of the single chip microcomputer 20.
One end of the alarm switch 7 is connected with the IO6 pin of the single chip microcomputer 20.
One end of the power system failure automatic detection button 29 is connected with the IO15 pin of the single chip microcomputer 20.
The kill pin of the ECU18 is connected with the IO5 pin of the single chip microcomputer 20.
The fout terminal of the fuel level sensor 9 is connected to the pin AD1 of the single chip microcomputer 20.
The negative pole of the vertical bar warning lamp 10 is connected with the I1 pin of the vertical bar warning lamp control transistor 21, the negative pole of the front warning lamp 11 is connected with the I2 pin of the front warning lamp control transistor 27, and the negative pole of the rear warning lamp 12 is connected with the I3 pin of the rear warning lamp control transistor 28.
The negative poles of the rectifier 1, the neutral switch 4, the manual operation switch 6, the alarm switch 7, the fuel level sensor 9, the starting motor 14, the whole vehicle storage battery 15, the alarm storage battery 17 and the power system fault automatic detection button 29 are connected with the ground in common.
The invention adopts a double-power supply system consisting of a whole vehicle storage battery 15 and a police tool storage battery 17 to supply power to the whole vehicle and the police tool, a police tool storage battery relay 16 controls the parallel connection and disconnection of the whole vehicle storage battery 15 and the police tool storage battery 17, and the police tool storage battery relay 16 is a normally closed relay. In the running process of the whole vehicle, the whole vehicle storage battery 15 and the police gear storage battery 17 are connected in parallel to supply power to the whole vehicle and the police gear; when the police tool is used under the condition that the whole vehicle engine does not run, the intelligent police tool controller 8 automatically judges whether the storage battery 17 and the storage battery 15 of the whole vehicle are in a power shortage state or not, controls the self-starting of the engine to charge the storage battery 17 of the police tool and the storage battery 15 of the whole vehicle according to the power shortage degree of the storage battery 17 of the police tool and the storage battery 15 of the whole vehicle, and intelligently adjusts the working mode of the police tool, so that the working time of the police tool is automatically prolonged on the premise of ensuring the mobility performance of the police vehicle. In order to meet the requirement of emergency, the invention is provided with a manual operation switch 6 which is used for connecting a whole vehicle storage battery 15 and a police gear storage battery 17 in parallel to supply power to the police gear and enabling the police gear to work according to the normal state on the premise of not considering the power shortage condition of the storage battery and the mobility performance of the police gear. The invention is also provided with a power supply system fault automatic detection button which is used for diagnosing the fault of the police car power supply system.
The functions of each part of the invention are as follows:
a rectifier 1: the alternating current generated by the magneto 2 is converted into constant voltage direct current.
A magneto 2: the mechanical energy generated when the engine runs is converted into electric energy.
Engine speed sensor 3: and providing an engine rotating speed signal to the police tool intelligent controller 8 to judge whether the engine is in a running state or not.
Neutral switch 4: and providing an engine neutral signal to the intelligent police gear controller 8, and forbidding the intelligent police gear controller 8 to automatically start the engine when the engine is not in the neutral position.
Vehicle speed sensor 5: and judging whether the whole vehicle is in a running state.
Manual operation switch 6: and controlling the running mode of the dual-power police system for the police car.
Police switch 7: a switch for controlling the on-off of the police tool.
Police ware intelligent control ware 8: control unit of dual supply police tools system for police car.
Fuel level sensor 9: and a fuel oil quantity signal is provided for the intelligent police device controller 8, and the storage battery is charged after the engine is automatically started on the premise that the fuel oil level is higher than the oil quantity required by the motor operation of the police car.
Montant warning lamp 10, preceding warning lamp 11, back warning lamp 12: the composition of a police tool.
The start relay 13: controlling the starting of the starter motor.
Starting the motor 14: the engine is started.
Police gear battery relay 16: and controlling the parallel connection and disconnection of the whole vehicle storage battery 15 and the police gear storage battery 17.
ECU 18: an electronic control unit of the engine and an intelligent alarm controller 8 enable the engine to be flamed out through a flameout pin of the ECU.
Power system failure automatic detection button 29: for running a fault diagnosis program of the power supply system.
Based on the system, as shown in fig. 3, the invention also provides a control method of the dual-power police system for the police car, which comprises the following specific steps:
step [1], the police ware intelligent controller 8 scans the state of the police ware switch 7, when the police ware switch 7 is not closed, the IO6 pin of the single chip microcomputer 20 is suspended, at the moment, step [2] is executed, the IO1, IO2 and IO3 pins of the single chip microcomputer 20 output low levels, and the vertical rod warning lamp 10, the front warning lamp 11 and the rear warning lamp 12 do not work. When the police gear switch 7 is closed, the IO6 pin of the single chip microcomputer 20 becomes a low level, then step [3] is executed, the single chip microcomputer 20 judges the state of the manual operation switch 6, when the manual operation switch 6 is closed, the IO7 pin of the single chip microcomputer 20 becomes a low level, the dual-power police gear system enters a manual control mode, and the working process of the manual control mode is as follows:
and (4) outputting a low level by an IO4 pin of the single chip microcomputer 20, outputting a high level by a C1i pin of the relay driving module 23, keeping e1 and e2 pins of the alarm storage battery relay 16 closed, supplying power to the anodes of the vertical post alarm lamp 10, the front alarm lamp 11 and the rear alarm lamp 12 after the whole vehicle storage battery 15 and the alarm storage battery 17 are connected in parallel through e1 and e2 pins of the alarm storage battery relay 16, and controlling the vertical post alarm lamp 10, the front alarm lamp 11 and the rear alarm lamp 12 to flicker according to normal working frequency by outputting PWM waves with normal frequency by IO1, IO2 and IO3 pins of the single chip microcomputer 20.
When the manual operation switch 6 is not closed in the step [3], the dual-power police system enters an automatic operation mode, and in the automatic operation mode, the intelligent police controller 8 automatically selects a working method of the dual-power police system according to the states of various sensors, and the specific working process is as follows:
step [5], whether the engine speed sensor 3 outputs continuous square wave signals to an IO9 pin of the single chip microcomputer 20 is judged, when the IO9 pin has continuous square wave signals and the frequency of the signals is larger than a set value, the engine is in operation, so the step [4] is executed, the IO4 pin of the single chip microcomputer 20 becomes low level, the whole vehicle storage battery 15 and the police gear storage battery 17 supply power to the anodes of the vertical post warning lamp 10, the front warning lamp 11 and the rear warning lamp 12 after being connected in parallel through e1 and e2 pins of the police gear storage battery relay 16, the IO1, the IO2 and the IO3 of the single chip microcomputer 20 output PWM waves with normal frequency, and the vertical post warning lamp 10, the front warning lamp 11 and the rear warning lamp 12 are controlled to flicker according to normal working frequency; when the IO9 pin has no continuous square wave signal or the signal frequency is less than the set value, judging that the engine does not run, executing a step [6], reading the voltage value of the police battery 17 collected by the Vbat1 pin of the single chip microcomputer 20, judging whether the voltage value is less than the set value 1, if the voltage value is more than the set value 1, indicating that the battery is not in power shortage, executing a step [4], changing the IO4 pin of the single chip microcomputer 20 into low level, connecting the whole vehicle battery 15 and the police battery 17 in parallel through a police battery relay 16, outputting PWM (pulse width modulation) waves with normal frequency by the IO1, the IO2 and the IO3 of the single chip microcomputer 20, and controlling the vertical bar police lamp 10, the front warning lamp 11 and the rear warning lamp 12 to; if the voltage value of the Vbat1 pin of the single chip microcomputer 20 or the Vbat pin is smaller than a set value 1, indicating that the storage battery is in power shortage, executing a step [7], judging whether the engine is in a neutral position or not by the single chip microcomputer 20 through a neutral position switch 4, if the engine is not in the neutral position, suspending an IO11 pin connected with the neutral position switch 4, forbidding the engine to be automatically started at the moment for safety, executing a step [16], and enabling the dual-power police system to enter a power shortage working mode; if the engine is in a neutral position, the IO11 pin connected with the neutral position switch 4 is at a low level, at the moment, the engine can be safely and automatically started, the step [8] is continuously executed, whether the fuel value in the vehicle fuel tank meets the minimum fuel requirement required by the motor patrol of the police car is judged, the fuel signal is input to the AD1 pin of the singlechip 20 through the fout end of the fuel level sensor 9, if the fuel does not meet the set value, the step [16] is executed, and the dual-power police system enters a power-loss working mode to ensure that the police car has a basic motor distance; if the oil quantity meets the set value, a step [9] is executed, IO10 pin of the single chip microcomputer 20 outputs high level, the end C4i of the starting relay driving module 22 and the end C4 of the starting relay 13 become low level, the ports e3 and e4 of the starting relay are conducted, the starting motor 14 works, the engine is started, when the IO9 port of the single chip microcomputer 20 receives continuous square waves and the signal frequency is larger than the set value, the engine is started successfully, the IO10 pin of the single chip microcomputer 20 outputs low level, the ports e3 and e4 of the starting relay 13 are disconnected, the starting motor 14 stops working, the self-starting of the engine is completed, the IO4 pin of the single chip microcomputer 20 outputs low level, the storage battery 15 of the whole vehicle and the storage battery 17 of the police tool are charged in parallel, the storage battery 15 and the storage battery 17 of the whole vehicle are charged in parallel through the rectifier 1, the storage battery 15 and the storage battery 17 of the police tool supply, The positive electrodes of the front warning lamp 11 and the rear warning lamp 12 are powered, and the IO1, the IO2 and the IO3 of the single chip microcomputer 20 output PWM waves with normal frequency to control the vertical rod warning lamp 10, the front warning lamp 11 and the rear warning lamp 12 to flicker according to the normal working frequency. Continuing to execute the step [10], judging whether the fuel level is larger than a specified value through the fuel level sensor 9, monitoring the fuel level in the self-starting charging process in real time, if the fuel level is larger than the specified value, executing the step [11], judging whether the manual operation switch 6 is closed, wherein the step has the effects that when the dual-power alarm system works in an automatic operation mode, an operator can switch to a manual control mode at any time, and if the manual operation switch 6 is closed, executing the step [4 ]; if the manual operation switch 6 in the step [11] is not closed, executing a step [12], judging whether the whole vehicle storage battery 15 and the alarm device storage battery 17 which are connected in parallel are fully charged or not by the singlechip 20 through a current sensor 19 which is connected in series between the rectifier 1 and the whole vehicle storage battery 17, if not, executing a step [13], judging whether the alarm device switch 7 is disconnected or not, wherein the step is to ensure that an operator can close the alarm device at any time according to the alarm condition during charging, and if the alarm device switch 7 is not closed, jumping to a step [2], and closing the alarm device; and if the alarm switch 7 is kept in a closed state, executing the step [10], and continuously and circularly judging the fuel oil level, the manual operation switch 6, the alarm switch 7, the whole vehicle storage battery 15 and the charging state of the alarm storage battery 17. If the step [12] is full, namely the single chip microcomputer 20 is judged to be charged through the Viout pin of the current sensor 19, the step [14] is executed, whether the police car is running is judged, the judgment is realized through a signal of an IO8 pin of the single chip microcomputer 20, a pout signal of the vehicle speed sensor 5 is input to an IO8 pin, when the frequency of the signal is greater than the set value, the police car is judged to be running, the judgment aims to prevent the police car from being automatically stopped by a dual-power police system in the running process to cause potential safety hazards, and the step [1] is executed to circularly judge the state of a police switch; if the police car is judged not to be driven, the step [15] is executed, the IO5 pin of the single chip microcomputer 20 outputs low level, the ECU18 controls the engine to be shut down, the automatic charging process is completed, and the step [1] is executed again to scan the state of the police gear switch 7. And (5) if the fuel level is judged to be less than the set value in the step [10], skipping to a step [14], determining whether to shut down the engine according to the running state of the police car, and turning to the step [1 ].
When the engine is judged not to be in the neutral position in the step [7] or the fuel level of the fuel tank of the vehicle is judged to be lower than the set value in the step [8], the dual-power police system enters a power-shortage working mode, the working mode has the function of preventing the police from discharging for a long time under the condition that the storage battery is not automatically charged, so that the condition that the police cannot be started occurs, the parallel connection line of the storage battery of the whole vehicle and the storage battery of the police is disconnected, the storage battery of the whole vehicle can keep enough electric quantity to meet the starting requirement of the whole vehicle, and the power-shortage storage battery 17 of the police independently supplies power to the police. The specific working process is as follows:
step [16], the IO4 pin of the singlechip 20 is changed into high level, the police equipment storage battery relay driving module 23 controls the C1 end of the police equipment storage battery relay 16 to be low level, the e1 and e2 pins of the police equipment storage battery relay 16 are disconnected, the whole vehicle storage battery 15 and the police equipment storage battery 17 are not connected in parallel, the police equipment storage battery 17 independently supplies power to the anodes of the vertical post warning lamp 10, the front warning lamp 11 and the rear warning lamp 12, the step [17] is continuously executed, the singlechip 20 judges whether the voltage of the police equipment storage battery 17 is lower than a set value 2 or not by reading the voltage value of the Vbat1 pin, the step [1] is executed to scan the state of the police equipment switch 7, the step [18] is executed if the voltage is lower than the set value 2, the police equipment works in a general power saving mode, the IO2 and IO3 pins of the singlechip 20 output low level, the front warning lamp 11 and the rear warning lamp 12 are closed, the IO1 pin of, the vertical bar warning lamp 10 works according to a normal flashing frequency, then a step [19] is executed, the single chip microcomputer 20 judges whether the voltage of the storage battery 17 of the warning device is lower than a set value 3 by reading the voltage value of a Vbat1 pin, if the voltage is not lower than the set value 3, a step [1] is executed to scan the state of a warning device switch 7, if the voltage is lower than the set value 3, a step [20] is executed, IO2 and IO3 pins of the single chip microcomputer 20 output low levels, the front warning lamp 11 and the rear warning lamp 12 are turned off, the IO1 pin of the single chip microcomputer 20 outputs PWM waves with low frequency, and the vertical bar warning lamp 10 works with low flashing frequency, so that the warning device works in a power-saving mode.
The invention has the self-diagnosis and prompt functions of the power supply system, and the specific diagnosis process comprises the following steps:
1) all electric loads and alarms of the whole vehicle are turned off, the electric lock of the whole vehicle is turned on, the engine is not started, and the single chip microcomputer 20 acquires U through a Vbat pin and a Vbat1 pin of the single chip microcomputer1 、U2And respectively storing the data in a storage unit A and a storage unit B;
2) if U is present1Or U2The value of the voltage is less than the set value 3, which indicates that the storage battery 15 of the whole vehicle or the storage battery 17 of the police tool is seriously insufficient, the IO12 of the singlechip 20 outputs high level, and the storage battery inspection reminding lamp 24 is lightened; reminding an operator to operate the power supply system for fault self diagnosis;
3) when the power system failure automatic detection button 29 is pressed, the IO15 pin of the single chip microcomputer 20 becomes low level. The police tool intelligent controller 8 automatically starts the engine and judges whether the engine is started successfully; after the engine is started successfully, the alarm intelligent controller 8 stops the operation of the starting motor;
4) the singlechip 20 collects U through Vbat pin3And storing the data in a storage unit C;
5) if U is present3If the current is less than the set value 4 or greater than the set value 5, the rectifier 1 or the magneto 2 is judged to have a fault, the IO14 of the single chip microcomputer 20 outputs a high level, the charging circuit fault indicator lamp 26 is turned on, and an operator is reminded to check the rectifier 1 or the magneto 2;
6) the single chip microcomputer 20 controls the whole vehicle storageThe battery 15 and the police tool 17 are connected in parallel, the charging current in t time is collected by the current sensor 19, and the average value I of the charging current is calculated1；
7) The single chip microcomputer 20 controls the whole vehicle storage battery 15 to disconnect the parallel connection of the police storage battery 17, the engine independently charges the police storage battery 17, the single chip microcomputer 20 collects charging current in t time through the current sensor 19 and calculates the average value I of the charging current2；
8) If U is present3Greater than a set value of 4, but I2If the current value is less than the set value, the storage battery 17 of the police equipment is judged to be in fault, the IO13 of the single chip microcomputer 20 outputs high level, the storage battery replacement indicating lamp 25 is lightened, and a user is reminded to replace the storage battery 17 of the police equipment;
if U is present3Greater than a set value of 4, but I1-I2If the value is smaller than the set value, the fault of the storage battery 15 of the whole vehicle is judged, the IO13 of the single chip microcomputer 20 outputs high-frequency PWM waves, and the storage battery replacement indicator lamp 25 flashes to remind a user to replace the storage battery 15 of the whole vehicle;
if U is present3Greater than a set value of 4, but I1If the value of the voltage is less than the set value, the whole vehicle storage battery 15 and the police appliance storage battery 17 are judged to have faults, the IO13 of the single chip microcomputer 20 outputs low-frequency PWM waves, and the storage battery replacement indicator lamp 25 slowly flashes to remind a user of replacing the whole vehicle storage battery 15 and the police appliance storage battery 17.
Claims (8)
1. The utility model provides a dual supply police gear system for police car which characterized in that: the intelligent police gear control system comprises an intelligent police gear controller (8), a whole vehicle storage battery (15) and a police gear storage battery (17), wherein the intelligent police gear controller (8) comprises a single chip microcomputer (20), a police gear control transistor and a police gear storage battery relay driving module (23), the whole vehicle storage battery (15) and the police gear storage battery (17) are respectively connected with a police gear storage battery relay (16), the police gear storage battery relay (16) is connected with the police gear storage battery relay driving module (23), and the single chip microcomputer (20) is respectively connected with the whole vehicle storage battery (15), the police gear storage battery (17), the police gear control transistor and the police gear storage battery relay driving module (23); the police gear intelligent controller (8) is respectively connected with the police gear switch (7) and the manual operation switch (6); the police gear intelligent controller (8) intelligently controls the parallel connection and disconnection of the whole vehicle storage battery (15) and the police gear storage battery (17) and controls the working mode of the police gear according to the electric quantity of the whole vehicle storage battery (15) and the police gear storage battery (17), and controls the automatic charging and stopping of the whole vehicle storage battery (15) and the police gear storage battery (17) according to the states of an engine and the whole vehicle.
2. The dual-power police system for the police car according to claim 1, characterized in that: the alarm device is characterized by further comprising a front alarm lamp (11), a rear alarm lamp (12) and a vertical rod alarm lamp (10) which are connected with the alarm device storage battery (17), wherein the alarm device control transistor comprises a vertical rod alarm lamp control transistor (21), a front alarm lamp control transistor (27) and a rear alarm lamp control transistor (28); the vertical rod warning lamp (10) is connected with the vertical rod warning lamp control transistor (21), and the front warning lamp (11) is connected with the front warning lamp control transistor (27); the rear warning lamp (12) is connected with a rear warning lamp control transistor (28).
3. The dual-power police system for the police car according to claim 2, characterized in that: the single chip microcomputer (20) is respectively connected with the engine rotating speed sensor (3), the neutral switch (4), the vehicle speed sensor (5), the manual operation switch (6), the warning switch (7), the ECU (18), the fuel oil level sensor (9) and the current sensor (19).
4. The dual-power police system for the police car according to claim 3, characterized in that: the whole vehicle storage battery (15) is respectively connected with the starting relay (13) and the starting relay driving module (22), and the starting relay driving module (22) is connected with the single chip microcomputer (20); the single chip microcomputer (20) controls the self-starting of the engine through controlling the starting relay (13), the single chip microcomputer (20) judges whether the starting of the engine is successful through the engine rotating speed sensor (3), and the stopping of the engine is controlled through the ECU (18).
5. The dual-power police system for the police car according to claim 3, characterized in that: the current sensor (19) is respectively connected with the police gear storage battery (17) and the rectifier (1).
6. The dual-power police system for the police car according to claim 2, characterized in that: the single chip microcomputer (20) is respectively connected with a storage battery inspection reminding lamp (24), a storage battery replacement indicating lamp (25), a charging circuit fault indicating lamp (26) and a power system fault automatic detection button (29).
7. The control method of the double-power supply police gear system for the police car as claimed in any one of claims 2-6, characterized by comprising the following steps:
s1, the intelligent police ware controller (8) scans the states of the police ware switch (7) and the manual operation switch (6); when the police gear switch (7) and the manual operation switch (6) are closed simultaneously, the dual-power police gear system for the police car enters a manual control mode; the manual control mode does not consider the maneuvering performance of the whole vehicle, a storage battery (15) of the whole vehicle and a storage battery (17) of an alarm device are directly connected in parallel through an alarm device storage battery relay (16) and then supply power to a front alarm lamp (11), a rear alarm lamp (12) and a vertical rod alarm lamp (10), and the front alarm lamp (11), the rear alarm lamp (12) and the vertical rod alarm lamp (10) flicker according to normal working frequency;
s2, when the three conditions are met, the dual-power police system for the police car enters an automatic operation mode;
1) the police switch (7) is closed but the manual operation switch (6) is not closed;
2) the engine speed sensor (3) does not output continuous square wave signals or the frequency of the signals is less than a set value;
3) the voltage value of the police gear storage battery (17) or the whole vehicle storage battery (15) is lower than a set value 1;
the automatic operation mode comprises a power-shortage working mode and an automatic charging working mode;
s2-1, power-deficient working mode
When the neutral switch (4) in the automatic operation mode does not output a low level or the fuel level transmitted by the fuel level sensor (9) is not more than a set value, the dual-power police system for the police car operates according to a power-shortage working mode; the intelligent police gear controller (8) disconnects the whole vehicle storage battery (15) from the police gear storage battery (17), the whole vehicle storage battery (15) keeps enough electric quantity to meet the starting requirement of the whole vehicle, and the police gear storage battery (17) independently supplies power to the front warning lamp (11), the rear warning lamp (12) and the vertical rod warning lamp (10); the intelligent police gear controller (8) detects the terminal voltage of the police gear storage battery (17), divides the police gear storage battery (17) into three states of common power shortage, medium power shortage and severe power shortage, and adjusts the working modes of the front warning lamp (11), the rear warning lamp (12) and the vertical post warning lamp (10) according to the power shortage state of the police gear storage battery (17); when the common power is insufficient, the front warning lamp (11), the rear warning lamp (12) and the vertical post warning lamp (10) work according to the normal flashing frequency; when the electricity is in a medium shortage state, the front warning lamp (11) and the rear warning lamp (12) are turned off, and the vertical rod warning lamp (10) works according to a normal flashing frequency; when the electricity is severely deficient, the front warning lamp (11) and the rear warning lamp (12) are turned off, and the vertical post warning lamp (10) works in a low-frequency flickering state;
s2-2 automatic charging working mode
When the neutral switch (4) outputs a low level in the automatic operation mode and the fuel level transmitted by the fuel level sensor (9) is greater than a set value, the dual-power police system for the police car operates according to the automatic charging working mode in the automatic operation mode; the intelligent police ware controller (8) controls a starting motor (14) to start the engine through a starting relay (13); the whole vehicle storage battery (15) and the police gear storage battery (17) are connected in parallel, the engine charges the whole vehicle storage battery (15) and the police gear storage battery (17), and the front warning lamp (11), the rear warning lamp (12) and the vertical rod warning lamp (10) work according to normal flashing frequency; the method comprises the steps that an engine runs in a circulating mode, a whole vehicle storage battery (15) and a police gear storage battery (17) are charged continuously, in the circulating process, a police gear intelligent controller (8) scans signals of a fuel oil level sensor (9), a manual operation switch (6), a police gear switch (7) and a current sensor (19), when the fact that the fuel oil level is lower than a set value or the signal of the current sensor (19) is smaller than the set value is detected, whether a police car is in a running state or not is judged through a vehicle speed sensor (5), and if the police car is not in the running state, the police gear intelligent controller (8) stops the engine to work; if the police car is in a running state, the engine keeps running, and the intelligent police equipment controller (8) skips to scan the state of the police equipment switch (7); when a closing signal of a manual operation switch (6) is detected in the charging cycle process, the dual-power police system for the police car jumps to a manual control mode; when the disconnection signal of the alarm switch (7) is detected in the charging cycle process, the intelligent alarm controller (8) turns off the front alarm lamp (11), the rear alarm lamp (12) and the vertical post alarm lamp (10) and skips to scan the state of the alarm switch (7).
8. The method for controlling the dual-power police system for the police car according to claim 7, wherein the dual-power police system for the police car has a power system self-diagnosis and prompt function; wherein, U1The terminal voltage of a whole vehicle storage battery (15) is the terminal voltage of the whole vehicle storage battery under the state that an engine does not run and a whole vehicle electrical appliance load and a police tool are closed; u shape2The terminal voltage of a police gear storage battery (17) is the terminal voltage of the whole vehicle electrical appliance load and the police gear in the state that the engine does not run and the police gear is closed; u shape3The charging voltage is output by the rectifier (1) under the states of engine running, whole vehicle electrical appliance load and alarm off; i is1The average value of t second charging current of a whole vehicle storage battery (15) and a police gear storage battery (17) which are connected in parallel is obtained; i is2The average value of t seconds charging current of the single-police-tool storage battery (17) is obtained;
the power supply system self-diagnosis and prompt function work flow is as follows:
1) all electric loads and police tools of the whole vehicle are turned off, the electric lock of the whole vehicle is turned on, and the single chip microcomputer (20) collects U1 、U2And respectively storing the data in a storage unit A and a storage unit B;
2) if U is present1Or U2The value of the alarm is less than the set value 3, which indicates that the storage battery (15) of the whole vehicle or the storage battery (17) of the alarm is seriously insufficient, and the storage battery inspection reminding lamp (2)4) Lighting up;
3) pressing a power supply system fault automatic detection button (29), automatically starting the engine by the alarm intelligent controller (8), judging whether the engine is successfully started or not, and turning off a starting motor by the alarm intelligent controller (8) after the engine is successfully started;
4) the singlechip (20) collects U3And storing the data in a storage unit C;
5) if U is present3If the current is less than the set value 4 or greater than the set value 5, judging that the rectifier (1) or the magneto (2) has a fault, and lighting a fault indicator lamp (26) of the charging circuit to remind the user of checking;
6) the singlechip (20) controls the whole vehicle storage battery (15) and the police tool storage battery (17) to be connected in parallel, and collects and calculates the charging current I1；
7) The singlechip (20) controls the whole vehicle storage battery (15) and the police tool storage battery (17) to be disconnected and connected in parallel, and collects and calculates the charging current I2；
8) If U is present3Greater than a set value of 4, but I2If the current value is less than the set value, the storage battery (17) of the police tool is judged to be in fault, and a storage battery replacement indicator lamp (25) is lightened to remind the police tool of replacing the storage battery (17); if U is present3Greater than a set value of 4, but I1-I2If the value is smaller than the set value, the fault of the storage battery (15) of the whole vehicle is judged, and the storage battery replacement indicator lamp (25) is in quick flash to remind a user of replacing the storage battery (15) of the whole vehicle; if U is present3Greater than a set value of 4, but I1If the value is less than the set value, the whole vehicle storage battery (15) and the police appliance storage battery (17) are judged to have faults, and the storage battery replacement indicator lamp (25) slowly flashes to remind of replacing the whole vehicle storage battery (15) and the police appliance storage battery (17).
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