CN103472339A - Full vehicle electricity deficiency automatic monitoring method used in manufacturing process - Google Patents

Full vehicle electricity deficiency automatic monitoring method used in manufacturing process Download PDF

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Publication number
CN103472339A
CN103472339A CN2013104398070A CN201310439807A CN103472339A CN 103472339 A CN103472339 A CN 103472339A CN 2013104398070 A CN2013104398070 A CN 2013104398070A CN 201310439807 A CN201310439807 A CN 201310439807A CN 103472339 A CN103472339 A CN 103472339A
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car load
accumulator
controller
load power
power shortage
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CN103472339B (en
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周晶洁
蒋锋
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Chongqing Changan Automobile Co Ltd
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Chongqing Changan Automobile Co Ltd
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Abstract

The invention discloses a full vehicle electricity deficiency automatic monitoring method used in a manufacturing process. A controller collects storage battery voltages V<storage battery>; when the storage battery voltages V<storage battery> are lower than a voltage threshold value V1 for more than M1 minutes, whether current storage battery voltages V<storage battery> are larger than or equal to a voltage threshold value V2 is judged, if yes, a combination instrument reminds a worker to charge a full vehicle for M2 minutes or replace a storage battery through a CAN bus signal in a sound-character mode; if the current storage battery voltages V<storage battery> are smaller than the voltage threshold value V2, the combination instrument reminds the worker to replace the storage battery through a CAN bus signal in a sound-character mode; after the combination instrument receives an alarming signal of the controller, a display screen reminds the worker to charge the full vehicle or replace the storage battery in a character mode all the time until the full vehicle is successfully started and continuous time is longer than M2 minutes or power is recovered after the full vehicle is in power outage; the full vehicle electricity deficiency automatic monitoring method is high in accuracy, strong in practicability and wide in applicability.

Description

Be applied to the method that in manufacture process, the car load power shortage is monitored automatically
Technical field
The invention belongs to the electrical control unit field, be specifically related to a kind of method that in manufacture process, the car load power shortage is monitored automatically that is applied to.
Background technology
The accumulator capacity of current conventional fuel-engined vehicle is more limited, such as the 45Ah~70Ah that is generally of 12V.Once car load is in the situation that engine is not activated, electrical appliance long-term work or a plurality of electrical appliance are worked simultaneously, are easy to cause the car load power shortage, and gently car load can't start, and the words accumulator of serious power shortage is by damaged.This situation is not easy to occur in user's use procedure; but in the car load manufacture process; general assembly stage particularly; after all electrical appliances of vehicle comprise that accumulator has all assembled; also to be debugged and be keeped in repair whole vehicle functions, in the meantime, when just being easy to appear at engine and being not activated; a plurality of electrical appliances situation that even some load works long hours of simultaneously working, therefore often there will be the situation of car load power shortage.Can't know the situation of car load power shortage simultaneously due to the workman, generally there will be following two kinds of consequences:
1) although the car load power shortage, can also starting engine, it is normal that this vehicle is easy to be judged as function, consigns to the logistics storehouse.But this vehicle, after placing an evening or several days, just there will be the car load power shortage, can't start.
2) the car load power shortage can't starting engine, and the mode that general workman can be by cross-over connection is to Vehicular charging, if still the duration of charging inadequate, still there will be the 1st) the kind situation.
Below either way can allow underproof vehicle delivery mistake to logistics department, find words timely, need to deal with problems by a large amount of storehouse work of turning over, if find can flow into sales department and user on hand not in time, directly affect the vehicle mass public praise.
The method addressed this problem at present has following two kinds:
A kind of is by increasing storage battery sensor, constantly monitoring the accumulator electric-quantity situation, if the electric weight deficiency, prompting is reported to the police, and even limits some electrical appliance work.As Chinese patent literature record " control method of a kind of power-supply management system and car body controller thereof; " its publication number is CN102079279A, and the cost compare costliness that the required car load of the method is paid generally only is used in by (such as benz, BMW etc.) on deluxe carmodel;
Another is to judge car load power shortage situation by easy vehicle voltage, " a kind of vehicle power management system and management method thereof " as the Chinese patent literature record, its publication number is: CN101863254A, but the instantaneous problem dragged down of vehicle voltage when the method exists empty voltage and electrical appliance work due to car load, False Rate is higher.
Summary of the invention
The purpose of this invention is to provide a kind of method that in manufacture process, the car load power shortage is monitored automatically that is applied to that accuracy is higher, practical, applicability is wider.
The method that is applied to the automatic monitoring of car load power shortage in manufacture process of the present invention comprises the following steps:
A, activation car load power shortage automatic monitoring brake;
B, controller gather the voltage of accumulator by hardware interface circuit, the voltage V that interface gathers gathervoltage V with accumulator accumulatorpass be:
V accumulator=V gather+ V pressure drop, V wherein pressure dropthe pressure drop of during for this entire car controller work, arriving accumulator, V pressure droptest and obtain by real vehicle;
Under C, the state that do not start at engine, controller makes the following judgment:
As battery tension V accumulatorwhile lower than voltage threshold V1 and duration, surpassing M1 minute, then judge current battery tension V accumulatorwhether be more than or equal to voltage threshold V2, if by CAN bus signals combination of notifications instrument, carry out sound and text prompt workman to car load charging M2 minute or change accumulator; If current battery tension V accumulatorduring lower than voltage threshold V2, by CAN bus signals combination of notifications instrument, carry out sound and the text prompt workman changes accumulator;
After D, combination instrument are received the alerting signal of controller, can be always on display screen the text prompt workman to the car load charging or change accumulator, until car load starts success and the duration surpasses M2 minute or the car load outage after restore electricity again and just stop pointing out;
E, cancellation car load power shortage automatic monitoring brake.
In described step B, the obtaining step of time parameter M1, M2 and voltage threshold V1, V2 is as follows:
B1, to obtain the standing required minimum accumulator capacity of car load by the test of storage battery sensor and LIN card real vehicle be A%, and described voltage threshold V1 is the magnitude of voltage of accumulator capacity while being A%;
B2, according to the relation in accumulator capacity and duration of charging the maximum dead time allowed in conjunction with factory, obtain when accumulator capacity is reduced to X%, need be to charge in batteries, described voltage threshold V2 is the magnitude of voltage of accumulator capacity while being X%, and described time parameter M2 is that accumulator capacity is charged to the required time of A% from X%;
B3, described time parameter M1 in the situation that the car load accumulator capacity is A%, debug maintenance action according to certain order simulation workman, until accumulator capacity needed time while being reduced to X%.
The order that described workman debugs maintenance action is:
The remote controlled unlocking car door, open the driving car door, the gear switch of car load power supply, to the ON shelves, is opened to radio, and opening air-conditioning and air quantity is maximum, open position lamp, dipped headlights, high beam, front fog lamp, Rear Fog Lamp, danger warning light successively, close successively danger warning light, Rear Fog Lamp, front fog lamp, high beam, dipped headlights, position lamp, windscreen wiper before and after opening, windscreen wiper before and after closing, open successively four vehicle windows fully, close successively four vehicle windows.
In the method for manufacturing link activation car load power shortage automatic monitoring brake, be:
A1, the controller of car load power shortage monitoring judgement is designed to " normal mode " and " manufacturing mode " two kinds of patterns, and this controller is set only at " manufacturing mode " time, could activates car load power shortage automatic monitoring brake;
A2, at the whole inspection station of assemble production line, this controller is configured to " manufacturing mode ", activate car load power shortage automatic monitoring brake;
In the method for manufacturing link cancellation car load power shortage automatic monitoring brake, be:
After the debugging maintenance, before vehicle enters the logistics storehouse, first by the power supply gear in ON shelves and starting engine not, determine that no-voltage is too low simultaneously or hang down warning message, press afterwards the emergency alarm switch, after the two sudden strains of a muscle of steering indicating light, step on brake pedal several times, press again the emergency alarm switch, after closing two flashing light light, controller is configured to " normal mode " automatically, also passes through text prompt " manufacturing mode releasing " certain hour on the display screen of combination instrument simultaneously, informs that the workman operates successfully.
Described controller is car body controller, or is combination instrument, or is without the key controller.
The present invention has the following advantages: by research car load accumulator capacity, voltage and the relation in idling duration of charging, workman's operation and the relation of car load power shortage time in manufacture process, design a set of with low cost but accuracy is higher, practical, applicability is wider car load power shortage method of monitoring automatically, effectively reduce the vehicle of power shortage in manufacture process and flow into the probability on market.
The accompanying drawing explanation
Fig. 1 is system chart of the present invention;
Fig. 2 is the exemplary plot that concerns of accumulator capacity and standing voltage;
Fig. 3 is the exemplary plot that concerns in accumulator capacity and duration of charging;
Fig. 4 is car load power shortage decision logic process flow diagram.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
The method that is applied to the automatic monitoring of car load power shortage in manufacture process as shown in Figure 1, its step is as follows:
A, activation car load power shortage automatic monitoring brake;
B, controller gather the voltage of accumulator by hardware interface circuit, the voltage V that interface gathers gathervoltage V with accumulator accumulatorpass be:
V accumulator=V gather+ V pressure drop, V wherein pressure dropthe pressure drop of during for this entire car controller work, arriving accumulator, V pressure droptest and obtain by real vehicle;
Under C, the state that do not start at engine, controller makes the following judgment:
As battery tension V accumulatorduring lower than voltage threshold V1 and over M1 minute, then judge current battery tension V accumulatorwhether be more than or equal to voltage threshold V2, if by CAN bus signals combination of notifications instrument, carry out sound and text prompt workman to car load charging M2 minute or change accumulator; If current battery tension V accumulatorduring lower than voltage threshold V2, by CAN bus signals combination of notifications instrument, carry out sound and the text prompt workman changes accumulator;
After D, combination instrument are received the alerting signal of controller, can be always on display screen the text prompt workman to the car load charging or change accumulator, until car load starts success and the duration surpasses M2 minute or the car load outage after restore electricity again and just stop pointing out;
E, cancellation car load power shortage automatic monitoring brake.
Below take controller as car body controller (BCM=Body Control Module) is example, the present invention is specifically described:
Referring to Fig. 1, car body controller 4 gathers accumulator 5 voltages by hardware interface circuit, the voltage V that interface gathers gatherwith battery tension V accumulatorpass be:
V accumulator=V gather+ V pressure drop, V wherein pressure dropthe pressure drop of during for this entire car controller work, arriving accumulator 5, V press falltest and obtain by real vehicle;
Under the state do not started at engine, car body controller 4 makes the following judgment:
Referring to Fig. 1 and Fig. 4, as battery tension V accumulatorwhile lower than voltage threshold V1 and duration, surpassing M1 minute, then judge current battery tension V accumulatorwhether be more than or equal to voltage threshold V2, if, car body controller 4 is forwarded to CAN bus II to combination instrument 3 by CAN bus III through gateway II (GW=Gate Way) by the alerting signal I, combination instrument 3 is received the built-in buzzer warning 1s of this signal rear drive, on display screen, uses text prompt " please charge in time M2 minute or change accumulator " simultaneously always; Until car body controller 4 monitors engine management system 1(EMS=Engine Management System) the car load engine start that is forwarded to CAN bus III through gateway 2 by CAN bus I becomes function signal and start-up time>=M2 minute or car body controller 4 to be de-energized while resetting because accumulator 5 is changed, car body controller 4 will stop alerting signal and issue combination instrument 3, and combination instrument 3 just stops the text prompt on display screen.
If V accumulatorduring<V2, car body controller 4 is forwarded to CAN bus II to combination instrument 3 by CAN bus III through GW by the alerting signal II, combination instrument 3 is received in the built-in buzzer warning 1s of this signal rear drive, simultaneously on display screen always text prompt " please change accumulator "; Until car body controller 4 is changed and is de-energized while resetting because of accumulator, car body controller 4 will stop alerting signal and be transmitted to combination instrument 3 through gateway 2, and combination instrument 3 just stops the text prompt on display screen.
In described step B, the obtaining step of time parameter M1, M2 and voltage threshold V1, V2 is as follows:
B1, to obtain the standing required minimum accumulator capacity of car load by the test of storage battery sensor and LIN card real vehicle be A%, and described voltage threshold V1 is the magnitude of voltage of accumulator capacity while being A%;
B2, according to the relation in accumulator capacity and duration of charging the maximum dead time allowed in conjunction with factory, obtain when accumulator capacity is reduced to X%, need be to charge in batteries, described voltage threshold V2 is the magnitude of voltage of accumulator capacity while being X%, and described time parameter M2 is that accumulator capacity is charged to the required time of A% from X%;
B3, described time parameter M1 in the situation that the car load accumulator capacity is A%, debug maintenance action according to certain order simulation workman, until accumulator capacity needed time while being reduced to X%.
Below take a vehicle in Chang'an and time parameter M1, M2 and obtaining of voltage threshold V1, V2 be specifically described as example:
Be stuck in collection analysis on this vehicle by storage battery sensor and LIN and confirm, this car is 70% in the standing required minimum accumulator capacity of car load, i.e. A%=70%; Referring to Fig. 2,, while being 70%, battery tension is 12.5V, i.e. voltage threshold V1=12.5V can to obtain the battery capacity (SOC=State of Charge remaining battery capacity) of accumulator; According to the plant produced environmental requirement, the static dead time of this vehicle in assembly shop at every turn can not be over 15 minutes, referring to Fig. 3, the relation in accumulator capacity and duration of charging and in conjunction with it receiving efficiency on this car load (90%), when SOC is 60%, the SOC that trickle charge reaches in 15 minutes is 73%, be greater than and approach most the static required minimum accumulator capacity of 70%(), when accumulator capacity is reduced to 60%, need be to charge in batteries, be X%=60%, M2=15 minute; Referring to Fig. 2, the voltage that SOC is 60% is 12.4V, i.e. voltage threshold V2=12.4V,
Time parameter M1 in the present embodiment, be mainly the custom that electric function and workman according to a certain concrete vehicle in Chang'an debug maintenance, according to certain order simulation workman, debugs maintenance action, until accumulator capacity needed time while being reduced to 60%.After tested, required time is about 30 minutes, and M1=30 minute.
The order that the workman debugs maintenance action is:
The remote controlled unlocking car door, open the driving car door, the gear switch of car load power supply, to the ON shelves, is opened to radio, and opening air-conditioning and air quantity is maximum, open position lamp, dipped headlights, high beam, front fog lamp, Rear Fog Lamp, danger warning light successively, close successively danger warning light, Rear Fog Lamp, front fog lamp, high beam, dipped headlights, position lamp, windscreen wiper before and after opening, windscreen wiper before and after closing, open successively four vehicle windows fully, close successively four vehicle windows.When completing above all operations, accumulator capacity is not reduced to 60% yet, repeats above operation until accumulator capacity is reduced to 60%.
In the method for manufacturing link activation car load power shortage automatic monitoring brake, be:
A1, the controller of car load power shortage monitoring judgement is designed to " normal mode " and " manufacturing mode " two kinds of patterns, and this controller is set only at " manufacturing mode " time, could activates car load power shortage automatic monitoring brake;
A2, at the whole inspection station of assemble production line, this controller is configured to " manufacturing mode ", activate car load power shortage automatic monitoring brake;
In the method for manufacturing link cancellation car load power shortage automatic monitoring brake, be:
After the debugging maintenance, before vehicle enters the logistics storehouse, first by the power supply gear in ON shelves and starting engine not, determine that no-voltage is too low simultaneously or hang down warning message, press afterwards the emergency alarm switch, after the two sudden strains of a muscle of steering indicating light, step on brake pedal several times, press again the emergency alarm switch, after closing two flashing light light, controller is configured to " normal mode " automatically, also passes through text prompt " manufacturing mode releasing " certain hour on the display screen of combination instrument simultaneously, informs that the workman operates successfully.
Below take controller and as car body controller (BCM=Body Control Module) as example, the method activated and cancel car load power shortage automatic monitoring brake be specifically described:
BCM detects vehicle voltage and the judgement warning function is designed to configurable, at E 2the PROM(EEPROM (Electrically Erasable Programmable Read Only Memo)) configure this functional status with one of them position (bit) in, when this value is " 0 ", mean that this function is illegal state, corresponding is " normal mode "; When this value is " 1 ", mean that this function is enabled state, corresponds to " manufacturing mode ".
BCM is when dispatching from the factory, this value is defaulted as " 0 ", be " normal mode ", when car load through assembly shop eventually during the inspection station, whole inspection equipment is by car load CAN interface, and through gateway and the communication of BCM foundation based on the USD diagnosing protocol, and it is written as " 1 " by the diagnostic write order by this value of BCM, now BCM just becomes " manufacturing mode ", and car load power shortage automatic monitoring brake is in enabled state.
After vehicle rolls off the production line, the workman, in the maintenance and debugging process, if when vehicle voltage and time meet above-mentioned condition, will remind the workman to the car load charging or change accumulator by sound and text prompt on the car load combination instrument.The workman debug the maintenance complete, in the time of vehicle need to being consigned to logistics department, the workman need to proceed as follows:
First by the power supply gear in ON shelves and starting engine not, determine the too low or low warning message of no-voltage simultaneously, press afterwards the emergency alarm switch, steering indicating light is two dodge after, step on brake pedal 5 times, then press the emergency alarm switch, close two flashing light light.
The operating state of workman's operation, BCM can obtain by rigid line collection or bus signals, if workman's operational motion meets above order and parameter request, BCM will change the value of configuration bit into " 0 " automatically, and car load returned to again " normal mode " before warehouse-in.
Controller of the present invention also can adopt combination instrument, or adopts without the key controller.

Claims (5)

1. one kind is applied to the method that in manufacture process, the car load power shortage is monitored automatically, it is characterized in that, comprises the following steps:
A, activation car load power shortage automatic monitoring brake;
B, controller gather the voltage of accumulator by hardware interface circuit, the voltage V that interface gathers gathervoltage V with accumulator accumulatorpass be:
V accumulator=V gather+ V pressure drop, V wherein pressure dropthe pressure drop of during for this entire car controller work, arriving accumulator, V pressure droptest and obtain by real vehicle;
Under C, the state that do not start at engine, controller makes the following judgment:
As battery tension V accumulatorwhile lower than voltage threshold V1 and duration, surpassing M1 minute, then judge current battery tension V accumulatorwhether be more than or equal to voltage threshold V2, if by CAN bus signals combination of notifications instrument, carry out sound and text prompt workman to car load charging M2 minute or change accumulator; If current battery tension V accumulatorduring lower than voltage threshold V2, by CAN bus signals combination of notifications instrument, carry out sound and the text prompt workman changes accumulator;
After D, combination instrument are received the alerting signal of controller, can be always on display screen the text prompt workman to the car load charging or change accumulator, until car load starts success and the duration surpasses M2 minute or the car load outage after restore electricity again and just stop pointing out;
E, cancellation car load power shortage automatic monitoring brake.
2. the method for monitoring automatically of car load power shortage in manufacture process that is applied to according to claim 1 is characterized in that:
In described step B, the obtaining step of time parameter M1, M2 and voltage threshold V1, V2 is as follows:
B1, to obtain the standing required minimum accumulator capacity of car load by the test of storage battery sensor and LIN card real vehicle be A%, and described voltage threshold V1 is the magnitude of voltage of accumulator capacity while being A%;
B2, according to the relation in accumulator capacity and duration of charging the maximum dead time allowed in conjunction with factory, obtain when accumulator capacity is reduced to X%, need be to charge in batteries, described voltage threshold V2 is the magnitude of voltage of accumulator capacity while being X%, and described time parameter M2 is that accumulator capacity is charged to the required time of A% from X%;
B3, described time parameter M1 in the situation that the car load accumulator capacity is A%, debug maintenance action according to certain order simulation workman, until accumulator capacity needed time while being reduced to X%.
3. the method for monitoring automatically of car load power shortage in manufacture process that is applied to according to claim 1 is characterized in that:
The order that described workman debugs maintenance action is:
The remote controlled unlocking car door, open the driving car door, the gear switch of car load power supply, to the ON shelves, is opened to radio, and opening air-conditioning and air quantity is maximum, open position lamp, dipped headlights, high beam, front fog lamp, Rear Fog Lamp, danger warning light successively, close successively danger warning light, Rear Fog Lamp, front fog lamp, high beam, dipped headlights, position lamp, windscreen wiper before and after opening, windscreen wiper before and after closing, open successively four vehicle windows fully, close successively four vehicle windows.
4. the method for monitoring automatically of car load power shortage in manufacture process that is applied to according to claim 1 is characterized in that:
In the method for manufacturing link activation car load power shortage automatic monitoring brake, be:
A1, the controller of car load power shortage monitoring judgement is designed to " normal mode " and " manufacturing mode " two kinds of patterns, and this controller is set only at " manufacturing mode " time, could activates car load power shortage automatic monitoring brake;
A2, at the whole inspection station of assemble production line, this controller is configured to " manufacturing mode ", activate car load power shortage automatic monitoring brake;
In the method for manufacturing link cancellation car load power shortage automatic monitoring brake, be:
After the debugging maintenance, before vehicle enters the logistics storehouse, first by the power supply gear in ON shelves and starting engine not, determine that no-voltage is too low simultaneously or hang down warning message, press afterwards the emergency alarm switch, after the two sudden strains of a muscle of steering indicating light, step on brake pedal several times, press again the emergency alarm switch, after closing two flashing light light, controller is configured to " normal mode " automatically, also passes through text prompt " manufacturing mode releasing " certain hour on the display screen of combination instrument simultaneously, informs that the workman operates successfully.
5. according to the arbitrary described method that in manufacture process, the car load power shortage is monitored automatically that is applied to of claim 1 to 4, it is characterized in that: described controller is car body controller, or is combination instrument, or is without the key controller.
CN201310439807.0A 2013-09-22 2013-09-22 Be applied to the method that in manufacture process, car load power shortage is monitored automatically Active CN103472339B (en)

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CN104535849A (en) * 2014-10-20 2015-04-22 北汽福田汽车股份有限公司 Switch module and combined instrument test system with switch module
CN109581122A (en) * 2018-12-24 2019-04-05 北京新能源汽车股份有限公司 A kind of detection method that vehicle abnormality wakes up, apparatus and system
CN111476379A (en) * 2020-04-01 2020-07-31 湖南行必达网联科技有限公司 Intelligent management system and method for fuel truck storage battery
CN112421725A (en) * 2020-11-24 2021-02-26 石家庄通合电子科技股份有限公司 Low-voltage accumulator monitor
CN112918249A (en) * 2021-01-28 2021-06-08 上海三一重机股份有限公司 Working machine circuit control method and system and working machine
CN115981288A (en) * 2023-01-18 2023-04-18 重庆长安汽车股份有限公司 Whole vehicle network non-dormancy monitoring method and device, electronic equipment and storage medium

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Publication number Priority date Publication date Assignee Title
CN104535849A (en) * 2014-10-20 2015-04-22 北汽福田汽车股份有限公司 Switch module and combined instrument test system with switch module
CN109581122A (en) * 2018-12-24 2019-04-05 北京新能源汽车股份有限公司 A kind of detection method that vehicle abnormality wakes up, apparatus and system
CN111476379A (en) * 2020-04-01 2020-07-31 湖南行必达网联科技有限公司 Intelligent management system and method for fuel truck storage battery
CN112421725A (en) * 2020-11-24 2021-02-26 石家庄通合电子科技股份有限公司 Low-voltage accumulator monitor
CN112918249A (en) * 2021-01-28 2021-06-08 上海三一重机股份有限公司 Working machine circuit control method and system and working machine
CN115981288A (en) * 2023-01-18 2023-04-18 重庆长安汽车股份有限公司 Whole vehicle network non-dormancy monitoring method and device, electronic equipment and storage medium
CN115981288B (en) * 2023-01-18 2024-04-19 重庆长安汽车股份有限公司 Whole vehicle network non-dormancy monitoring method and device, electronic equipment and storage medium

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