CN102155343B - Starting safety management system and control method thereof - Google Patents
Starting safety management system and control method thereof Download PDFInfo
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- CN102155343B CN102155343B CN 201110127429 CN201110127429A CN102155343B CN 102155343 B CN102155343 B CN 102155343B CN 201110127429 CN201110127429 CN 201110127429 CN 201110127429 A CN201110127429 A CN 201110127429A CN 102155343 B CN102155343 B CN 102155343B
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Abstract
The invention discloses a starting safety management system and a control method thereof. The management system comprises a starting relay, a sampling interface circuit, a control interface circuit and a microprocessor, wherein the sampling interface circuit is used for acquiring a current signal of a starting loop and transmitting the current signal to the microprocessor; a computing module, a judging module and a storing module are arranged in the microprocessor; the computing module is used for converting the current signal acquired by the sampling interface circuit into a present current value; a current and starting time comparison table is preset in the storing module; and the judging module is used for comparing the present current value with a reference current value matched with the present time in the storing module, making judgment and switching the starting relay off through the control interface circuit when the present current value surpasses the reference current value in the comparison table at the present time. The control method comprises the following steps of: monitoring the starting loop; judging whether the current of the starting loop is abnormal; and switching the starting loop off. When the starting loop becomes abnormal, the starting loop is switched off automatically for protecting.
Description
Technical field
The present invention relates to the passenger vehicle technical field of electricity, relate in particular a kind of management system and controlling method thereof that can improve passenger vehicle starting Security.
Background technique
Along with the development of Bus Technology, the reliability and safety during the passenger vehicle starting is also paid close attention to by people gradually.Working power during at present starter motor starting is generally provided by the storage battery that passenger vehicle carries, be to consist of start loop between starter motor and the storage battery, when the phenomenons such as short circuit or overcurrent occurring when start loop, electric current can increase rapidly, thereby the hidden danger that has the working life of reducing storage battery and starter motor also can cause the safety problems such as fire when serious.
For the problems referred to above, passenger vehicle mainly is to adopt the method that installs insurance additional at present, guarantee the Security of start loop, namely between battery positive voltage and starter motor positive pole, increase a Safety protector, when being short-circuited or during over-current phenomenon avoidance, safety fuse cutout in this Safety protector can be fused, thereby reaches the purpose of cutting off start loop.
But there is following defective at least in the mode of above-mentioned employing Safety protector:
One, safety fuse is subject to the impact of some other factorses easily, i.e. too simple the and poor efficiency of its protective measure, thereby exist can't timely and effective protection starting loop hidden danger;
Two, whether safety fuse fuses, and can not directly allow driver and passenger in time know, thereby has the not convenient problem of using.
In view of this, the inventor has this case to produce for the defects further investigation of existing protection starting circuit technology then.
Summary of the invention
The first purpose of the present invention is to provide a kind of starting safety management system, exist to solve the too simple and poor efficiency of protective measure in the prior art can't timely and effective protection starting loop problem.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of starting safety management system, wherein, comprise starter relay, sampling interface circuit, control interface and microprocessor, this starter relay is located in the start loop, this sampling interface circuit and control interface are all between starter relay and microprocessor, the current signal of this sampling interface circuit Real-time Collection start loop also passes to microprocessor with current signal, be provided with computing module in this microprocessor, judge module and memory module, this computing module is scaled current current value with the current signal of sampling interface circuit collection, be preset with the corresponding table with the starting time of electric current of current starter motor in this memory module, this judge module then compares judgement according to being matched with the reference current value of current time in current current value and the memory module, and disconnects starter relay by control interface when current current value exceeds under the current time corresponding table internal reference current value.
Further, this starting safety management system also comprises CAN transceiver and CAN controller, and this CAN transceiver links to each other with instrument controller by automobile-used bus, and this CAN controller then is arranged between CAN transceiver and the microprocessor.
Further, be divided into three periods based on its starting time after the starter motor starting, namely start section, accelerating sections and mild section, the corresponding table of the corresponding table with the starting time of this electric current for setting based on accelerating sections and mild section.
Further, this starting section begins time section to 200ms for starting, and this accelerating sections is the time section of 200ms to 600ms, this mild section for 600ms to time section that starter motor stops.
The second purpose of the present invention is to provide a kind of controlling method of starting safety management system, and it comprises the steps:
1., monitoring start loop: after starter motor started, microprocessor passed through the current signal of sampling interface circuit Real-time Collection start loop, and was converted to current current value by the computing module of microprocessor;
2., judge whether the start loop electric current is unusual: based on the residing starting time of current current value, transfer the corresponding table with the starting time of electric current of microprocessor stores inside modules storage, and obtaining reference current value, judge module compares current current value and reference current value; If current current value is less than or equal to reference current value, then continue execution in step 1.;
3., disconnect start loop: if current current value greater than reference current value, microprocessor disconnects starter relay by control interface.
Further, step 3. in, microprocessor also sends alarm signal by CAN controller, CAN transceiver and automobile-used bus to instrument controller.
Further, be divided into three periods based on its starting time after the starter motor starting, i.e. starting section, accelerating sections and mild section, step 1. in, this sampling interface circuit is only monitored the time signal of accelerating sections and mild section, step 2. in, this correspondence table also only stores the parameter under accelerating sections and mild section.
Further, this starting section begins time section to 200ms for starting, and this accelerating sections is the time section of 200ms to 600ms, this mild section for 600ms to time section that starter motor stops.
After adopting said structure, a kind of starting safety management system and the controlling method thereof that the present invention relates to, it is arranged on starter relay in the start loop, and allow electric current that sampling interface circuit can the Real-Time Monitoring start loop and the current signal that obtains is delivered to microprocessor, the memory module of this microprocessor then stores the corresponding table with the starting time of corresponding electric current according to current starter motor model, and by after current current value and reference current value are compared, if current current value is greater than reference current value, then disconnect starter relay by control interface, can automatically cut off start loop, and play a protective role; Certainly it can also send alarm signal to instrument by automobile-used bus, thereby improves the Security of passenger vehicle.
Description of drawings
Fig. 1 the present invention relates to a kind of structured flowchart that starts safety management system;
Fig. 2 the present invention relates to a kind of schematic flow sheet that starts the controlling method of safety management system.
Among the figure:
Starting safety management system 100
Starter relay 1 sampling interface circuit 2
Control interface 3 microprocessors 4
CAN controller 6
Starter motor 200 storage batteries 300.
Embodiment
In order further to explain technological scheme of the present invention, the present invention will be described in detail below by specific embodiment.
As shown in Figure 1, it comprises starter relay 1, sampling interface circuit 2, control interface 3 and microprocessor 4 for the present invention relates to a kind of starting safety management system 100.
This starter relay 1 is arranged in the start loop, and this start loop specifically comprises and interconnects and form starter motor 200 and the storage battery 300 in loop;
This sampling interface circuit 2 and control interface 3 all between starter relay 1 and microprocessor 4, the current signal of these sampling interface circuit 2 Real-time Collection start loops, and current signal passed to microprocessor 4; The control signal of 3 reception microprocessors 4 of this control interface and control starter relay 1 action.
Be provided with computing module 41, judge module 42 and memory module 43 in this microprocessor 4, this computing module 41 is scaled current current value with the current signal that sampling interface circuit 2 gathers, be preset with the corresponding table with the starting time of electric current of current starter motor 200 in this memory module 43, this electric current is different corresponding to different starter motor 200 models from corresponding table of starting time, its posterior infromation for obtaining by many experiments; Electric current is the current value of start loop in this correspondence table, and the starting time then is the difference of current time and 200 starting times of starter motor.
42 of this judge modules compare judgement according to being matched with the reference current value of current time in current current value and the memory module 43, if current current value exceeds lower corresponding table internal reference current value of current time, 4 of this microprocessors disconnect starter relay 1 by control interface 3, thereby reach the effect of cutting off start loop.
Preferably, this starting safety management system 100 also comprises CAN transceiver 5 and CAN controller 6, this CAN transceiver 5 links to each other with instrument controller by automobile-used bus, 6 of this CAN controllers are arranged between CAN transceiver 5 and the microprocessor 4, so, and when start loop occurs such as short circuit or overcurrent etc. unusually, can also send alarm signal to instrument by automobile-used bus, thereby improve the Security of passenger vehicle, specifically this automobile-used bus is the CAN bus, and its communication protocol adopts SAE J1939.
Because the operation of starter motor 200 has period, specifically it is after starting, can be divided into three periods based on the starting time, i.e. starting section, accelerating sections and mild section, more specifically, this starting section begins time section to 200ms for starting, in the starting section owing to be firm startup, so can there be heavy current pulse; This accelerating sections is the time section of 200ms to 600ms, and bus engine can be started and reaches the setting rotating speed in this time section; Should mild section for 600ms to the time section that starter motor 200 stops, this time drives starting current and tends towards stability.So, in order to improve the degree of accuracy of measurement, the corresponding table with the starting time of the electric current that relates among the present invention is set with mild section based on accelerating sections.
As shown in Figure 2, the present invention also provides a kind of controlling method of starting safety management system 100, and it specifically is the connection shape at start loop, i.e. just start working after starter motor 200 startings, specifically comprises the steps:
1., monitoring start loop: after starter motor 200 started, microprocessor 4 passed through the current signal of sampling interface circuit 2 Real-time Collection start loops, and was converted to current current value by the computing module 41 of microprocessor 4;
2., judge whether the start loop electric current is unusual: based on the residing starting time of current current value, transfer the corresponding table with the starting time of electric current of microprocessor 4 memory modules 43 storage inside, and obtaining reference current value, 42 pairs of current current values of judge module and reference current value compare; If current current value is less than or equal to reference current value, then continue execution in step 1.;
3., disconnect start loop: if current current value greater than reference current value, microprocessor 4 disconnects starter relay 1 by control interface 3.Preferably, in step, this microprocessor 4 also sends alarm signal by CAN controller 6, CAN transceiver 5 and automobile-used bus to instrument controller.
Preferably, step 1. in, this sampling interface circuit 2 is only monitored the time signal of accelerating sections and mild section; And step 2. in, this correspondence table also only stores the parameter under accelerating sections and mild section, so can further promote the degree of accuracy of detection.
In sum, a kind of starting safety management system 100 and the controlling method thereof that the present invention relates to, it is by being arranged on starter relay 1 in the start loop, and allow electric current that sampling interface circuit 2 can the Real-Time Monitoring start loop and the current signal that obtains is delivered to microprocessor 4,4 of this microprocessors compare current current value and reference current value, if current current value is greater than reference current value, then disconnect starter relay 1 by control interface 3, thereby automatically cut off start loop, and play the effect of protection; It also sends alarm signal by automobile-used bus to instrument simultaneously, thereby can further improve the Security of passenger vehicle.
Above-described embodiment and graphic and non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present invention to its suitable variation or modification of doing.
Claims (8)
1. one kind is started safety management system, it is characterized in that, comprise starter relay, sampling interface circuit, control interface and microprocessor, this starter relay is located in the start loop, this sampling interface circuit and control interface are all between starter relay and microprocessor, the current signal of this sampling interface circuit Real-time Collection start loop also passes to microprocessor with current signal, be provided with computing module in this microprocessor, judge module and memory module, this computing module is scaled current current value with the current signal of sampling interface circuit collection, be preset with the corresponding table with the starting time of electric current of current starter motor in this memory module, this judge module then compares judgement according to being matched with the reference current value of current time in current current value and the memory module, and disconnects starter relay by control interface when current current value exceeds under the current time corresponding table internal reference current value.
2. a kind of starting safety management system as claimed in claim 1, it is characterized in that, this starting safety management system also comprises CAN transceiver and CAN controller, this CAN transceiver links to each other with instrument controller by automobile-used bus, and this CAN controller then is arranged between CAN transceiver and the microprocessor.
3. a kind of starting safety management system as claimed in claim 1, it is characterized in that, be divided into three periods based on its starting time after the starter motor starting, namely start section, accelerating sections and mild section, the corresponding table of the corresponding table with the starting time of this electric current for setting based on accelerating sections and mild section.
4. a kind of starting safety management system as claimed in claim 3 is characterized in that, this starting section begins time section to 200ms for starting, and this accelerating sections is the time section of 200ms to 600ms, this mild section for 600ms to time section that starter motor stops.
5. a controlling method of starting safety management system is characterized in that, comprises the steps:
1., monitoring start loop: after starter motor started, microprocessor passed through the current signal of sampling interface circuit Real-time Collection start loop, and was converted to current current value by the computing module of microprocessor;
2., judge whether the start loop electric current is unusual: based on the residing starting time of current current value, transfer the corresponding table with the starting time of electric current of microprocessor stores inside modules storage, and obtaining reference current value, judge module compares current current value and reference current value; If current current value is less than or equal to reference current value, then continue execution in step 1.;
3., disconnect start loop: if current current value greater than reference current value, microprocessor disconnects starter relay by control interface.
6. a kind of controlling method of starting safety management system as claimed in claim 5 is characterized in that, step 3. in, microprocessor also sends alarm signal by CAN controller, CAN transceiver and automobile-used bus to instrument controller.
7. a kind of controlling method of starting safety management system as claimed in claim 5, it is characterized in that, be divided into three periods based on its starting time after the starter motor starting, i.e. starting section, accelerating sections and mild section, step 1. in, this sampling interface circuit is only monitored the time signal of accelerating sections and mild section, step 2. in, this correspondence table also only stores the parameter under accelerating sections and mild section.
8. a kind of controlling method of starting safety management system as claimed in claim 7, it is characterized in that, this starting section begins time section to 200ms for starting, and this accelerating sections is the time section of 200ms to 600ms, this mild section for 600ms to time section that starter motor stops.
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| CN 201110127429 CN102155343B (en) | 2011-05-17 | 2011-05-17 | Starting safety management system and control method thereof |
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| CN 201110127429 CN102155343B (en) | 2011-05-17 | 2011-05-17 | Starting safety management system and control method thereof |
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| CN102155343B true CN102155343B (en) | 2013-03-27 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454477B (en) * | 2012-05-29 | 2016-06-22 | 上海汽车集团股份有限公司 | Control based on the automobile start electric current of single Hall sensor framework |
| CN103674566B (en) * | 2012-09-07 | 2016-08-17 | 上海汽车集团股份有限公司 | Automobile start monitoring method based on peak inrush current |
| CN103675493B (en) * | 2012-09-07 | 2016-07-20 | 上海汽车集团股份有限公司 | Fault detection method for starter of automobile |
| CN104764611A (en) * | 2015-04-20 | 2015-07-08 | 矽通瑞达科技（北京）有限责任公司 | Vehicle start-stop monitoring method and device |
| CN113238545B (en) * | 2021-04-30 | 2022-12-20 | 珠海格力电器股份有限公司 | Vehicle control unit activation signal detection device, vehicle control unit and vehicle |
| CN114876692A (en) * | 2022-04-12 | 2022-08-09 | 三一重机有限公司 | Protection method, device and circuit for starting motor and working machine |
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| CN2531564Y (en) * | 2002-02-10 | 2003-01-15 | 韩君杰 | Digital electronic motor protector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6800960B2 (en) * | 2002-05-06 | 2004-10-05 | Delphi Technologies, Inc. | Short circuit protection system for a starter circuit |
| US7208909B2 (en) * | 2005-07-29 | 2007-04-24 | Rockwell Automation Technologies, Inc. | Motor protection inhibit circuit |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2531564Y (en) * | 2002-02-10 | 2003-01-15 | 韩君杰 | Digital electronic motor protector |
| CN200990015Y (en) * | 2006-12-25 | 2007-12-12 | 比亚迪股份有限公司 | Vehicle electric device central wire connecter |
| CN101240767A (en) * | 2008-03-06 | 2008-08-13 | 武汉理工大学 | A Bus Starting Control System Based on Information Integration |
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Inventor after: Li Li Inventor after: Li Wei Inventor after: Zheng Yi Inventor after: Bai Yumei Inventor after: Huang Lei Inventor before: Li Li Inventor before: Li Wei Inventor before: Zheng Yi Inventor before: Bai Yumei Inventor before: Huang Lei |