CN103600667B - A kind of method of pure electric bus safe starting time sequence control logic - Google Patents
A kind of method of pure electric bus safe starting time sequence control logic Download PDFInfo
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Abstract
The present invention proposes a kind of method of pure electric bus safe starting time sequence control logic, comprising: when detecting that the key of pure electric bus is switched to ACC shelves from LOCK shelves, the low-voltage equipment of pure electric bus carries out power-on self-test; When detecting that key is switched to ON shelves from ACC shelves, check the battery management system of pure electric bus and electric machine controller whether normal, if it is start High voltage output; Judge that whether High voltage output is normal, if allow the high-voltage power system of pure electric bus to be use high-tension current; When detecting that key is switched to START shelves from ON shelves, detect pure electric bus and whether meet pre-conditioned, if so, allow motor controller controls main contactor to close and enter operation armed state to control pure electric bus; Judge that gear is switching and brake pedal signal is effective time, process gear switch action.The present invention can guarantee that pure electric bus can the startup High voltage output of safety when starting, and ensures the safety of elec. vehicle, each electrical equipment and passenger.
Description
Technical field
The present invention relates to technical field of vehicle, particularly a kind of method of pure electric bus safe starting time sequence control logic.
Background technology
In the shortage of Present Global at petroleum-based energy, when the gross pollution of environment, pure electric automobile relies on that economize energy, environmental pollution are little, low noise and the advantages such as structure is simple, easy to control, easy care, becomes countries in the world prior development direction in auto trade.Pure electric bus particularly in pure electric automobile is the important development direction of public transport from now on.
But also there is following potential safety hazard in pure electric automobile:
Because pure electric automobile adopts in high voltage drive motor, car, the high tension loop ensureing drive motor tractive performance is installed; and power line voltage is considerably beyond standard security voltage; and the charge and discharge characteristic of electrokinetic cell easily causes the problems such as burning, blast, electric leakage; so cause the security protection performance of pure electric automobile lower; the startup safety of pure electric vehicle can not be protected, and do not form a kind of clear and definite unified startup time sequence control logic.
Summary of the invention
Object of the present invention is intended at least solve one of described technological deficiency.
For this reason, the object of the invention is to a kind of method proposing pure electric bus safe starting time sequence control logic, the method can guarantee that pure electric bus can the startup High voltage output of safety when starting, thus can ensure the safety of elec. vehicle, each electrical equipment and passenger.
To achieve these goals, embodiments of the invention provide a kind of method of pure electric bus safe starting time sequence control logic, comprise the steps:
When the whole-control system of described pure electric bus detects that the key of pure electric bus is switched to ACC shelves from LOCK shelves, the low-voltage equipment of described pure electric bus carries out power-on self-test;
When described whole-control system detects that described key is switched to ON shelves from described ACC shelves, check the battery management system of described pure electric bus and electric machine controller whether normal, if it is start High voltage output;
Described whole-control system judges that whether High voltage output is normal, if it is allows the high-voltage power system of described pure electric bus to be use high-tension current;
When described whole-control system detects that described key is switched to START shelves from described ON shelves, whether detect described pure electric bus meets pre-conditioned, if so, then allow described motor controller controls main contactor to close and enter operation armed state to control described pure electric bus;
When described whole-control system judges that gear is switching and brake pedal signal is effective, process described gear switch action.
According to the method for the pure electric bus safe starting time sequence control logic of the embodiment of the present invention, the startup High voltage output that pure electric bus can be safe when starting can be guaranteed, improve when the pure electric bus of driver's operation starts and ensure vehicle safety and device security, thus the safety of elec. vehicle, each electrical equipment and passenger can be ensured.
In one embodiment of the invention, after the low-voltage equipment power-on self-test of described pure electric bus, described whole-control system sends the state parameter of described low-voltage equipment to the auto meter of described pure electric bus, and the state parameter of described low-voltage equipment is shown by the auto meter of described pure electric bus, wherein, described low-voltage equipment comprises whole-control system, electric machine controller and battery management system.
Preferably, described state parameter comprises cell pressure, battery temperature, motor status and motor temperature.
In yet another embodiment of the present invention, normally whether the battery management system of the pure electric bus of described inspection and electric machine controller, comprise the steps:
Described whole-control system judges that whether described battery management system is standby, if so, then judges whether described electric machine controller is in normal condition further;
If so, then the order of unlatching high pressure is sent to start High voltage output to described battery management system.
Preferably, the auto meter of described pure electric bus shows the state variation of described battery management system in real time.
In yet another embodiment of the present invention, described whole-control system is after judging that High voltage output is normal, and closing relay switch, allows high-voltage power system work.
In one embodiment of the invention, whether the described pure electric bus of described detection meets pre-conditioned, comprises the steps:
Described whole-control system judges whether described battery management system is in enabled state, if so, then judges whether electric machine controller is in normal condition further;
After judging that described electric machine controller is in normal condition, judge whether the gear of described pure electric bus is in neutral gear further, if so, then described motor controller controls main contactor closes.
In yet another embodiment of the present invention, described whole-control system is when judging that gear switches, judge whether the brake pedal of described pure electric bus is stepped on further, if, then judge that brake pedal signal is effective, and judge that gear switch is effective further, otherwise maintain range state last time.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the schematic diagram of the pure electric bus dynamic assembly according to the embodiment of the present invention;
Fig. 2 is the schematic diagram of the key according to the embodiment of the present invention;
Fig. 3 is the diagram of circuit of the method for pure electric bus safe starting time sequence control logic according to the embodiment of the present invention;
Fig. 4 is the pure electric bus clean boot time sequence control logic diagram of circuit according to the embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
Below with reference to Fig. 1 to Fig. 4, the method for the pure electric bus safe starting time sequence control logic of the embodiment of the present invention is described.
Fig. 1 shows the schematic diagram of the dynamic assembly of the pure electric bus of the embodiment of the present invention.Wherein, pure electric bus is direct-driving type.
As shown in Figure 1, the dynamic assembly of the pure electric bus of the embodiment of the present invention comprises: whole-control system 1, key ACC shelves 2, key ON shelves 3, key START shelves 4, acceleration pedal 5, brake pedal 6, gear signal apparatus 7, relay switch 8, relay 9, battery management system 10, electrokinetic cell 11, high-voltaghe compartment 12, DC chopper DC/DC13, electric machine controller 14, inverter 15, vehicle-mounted 24V storage battery 16, low power used system 17, additional high pressure using electricity system 18, drive motor 19, auto meter 20, first front-wheel 21, second front-wheel 22, first trailing wheel 23 and the first trailing wheel 24.
Particularly, ACC shelves signal, ON shelves signal, START shelves signal, acceleration pedal signal, brake pedal signal and gear signal are all sent to whole-control system 1.Whole-control system 1 carries out communication by CAN (ControllerAreaNetwork, controller local area network CAN) bus and battery management system 10, auto meter 20, electric machine controller 14.Battery management system 10 is connected with electrokinetic cell 11, for dynamics of management battery 11.Electric machine controller 14 is connected with inverter 15, and inverter 15 exports three plase alternating current to drive motor 19.Drive motor 19 is connected with back axle 25 further, and back axle 25 is connected with the second trailing wheel 24 with the first trailing wheel 23 respectively.Inverter 15 exports DC high-voltage to high-voltaghe compartment 12, and electrokinetic cell 11 exports DC high-voltage to high-voltaghe compartment 12 under the control of battery management system 10.Whole-control system 1 is by relay switch 8 control relay 9.Relay 9 is connected with high-voltaghe compartment 12, in closed state, the DC high-voltage of high-voltaghe compartment 12 is exported to additional high pressure using electricity system 18 to allow the work of additional high pressure using electricity system.Further, DC high-voltage exports DC chopper DC/DC13 to further.DC high-voltage is transformed to DC low-voltage electricity by DC/DC13, and DC low-voltage electricity is exported to vehicle-mounted 24V storage battery 16 to charge to storage battery 16.Vehicle-mounted 24V storage battery 16 exports direct current (DC) further and works to allow low power used system 17 to low power used system 17.
Fig. 2 shows the schematic diagram of the key of the embodiment of the present invention.
As can be seen from Figure 2, the key of pure electric bus comprises LOCK shelves, ACC shelves, ON shelves and START shelves.Above-mentioned four gears rotate clockwise startup successively, keep normal electricity effectively after each position starts.Wherein, ON shelves have high-voltage switch gear effect, START shelves have the effect of starter motor driving switch.
Below with reference to Fig. 3, the method for the pure electric bus safe starting time sequence control logic of the embodiment of the present invention is described.This startup control method is to pure electric bus clean boot time sequence control logic flow process, can by whole-control system 1 in conjunction with auto meter 20 specific implementation.It should be noted that, the method for above-mentioned pure electric bus safe starting time sequence control logic is applicable to the pure electric bus being with driving switch.The main body actuating unit of whole startup time sequence control logic is whole-control system 1.Auto meter 20 can show state and the parameter of subsystems in real time, thus provides safety instruction to chaufeur.
Step S101, when whole-control system 1 detects that key is switched to ACC shelves from LOCK shelves, the low-voltage equipment of pure electric bus carries out power-on self-test.
In one embodiment of the invention, low-voltage equipment comprises whole-control system 1, electric machine controller 14 and battery management system 10.
Particularly, after the low-voltage equipment power-on self-test of pure electric bus, whole-control system 1 sends the state parameter of low-voltage equipment to auto meter 20, and can be shown the state parameter of above-mentioned low-voltage equipment by auto meter 20.
In an example of the present invention, state parameter comprises cell pressure, battery temperature, motor status and motor temperature.
In yet another embodiment of the present invention, whole-control system 1, according to states such as battery management system 10 and electric machine controllers 14, shows the current state of gross vehicle by auto meter 20.
Step S102, when the key that whole-control system 1 detects is switched to ON shelves from ACC shelves, check the battery management system 10 of pure electric bus and electric machine controller 14 whether normal, if it is start High voltage output.
Particularly, first whole-control system 1 judges whether battery management system 10 is in (READY) state of awaiting orders, and if so, then judges whether electric machine controller 14 is in normal condition further.
If electric machine controller 14 is also in normal condition, then sends to battery management system 10 and open high pressure order.After battery management system 10 receives the order of above-mentioned unlatching high pressure, start High voltage output, namely export high-tension current.
In one embodiment of the invention, auto meter 20 can show the state variation of battery management system 10 in real time.
Step S103, whole-control system 1 judges that whether High voltage output is normal, if it is allows the high-voltage power system of pure electric bus to use high-tension current.
Particularly, whole-control system 1 is after judging that High voltage output is normal, and closing relay switch, allows high-voltage power system work.
Step S104, when whole-control system 1 detects that key is switched to START shelves from ON shelves, whether meet pre-conditioned, if so, then main contactor is closed enters operation armed state to control pure electric bus to allow electric machine controller 14 to control if detecting pure electric bus.
Particularly, whole-control system 1, after detecting that key is switched to START shelves from ON shelves, judges whether battery management system 10 is in enable (ENABLE) state, if so, then judges whether electric machine controller 14 is in normal condition further.
Judging that electric machine controller 14 is also in normal condition and after acceleration pedal zero, judges whether the gear of pure electric bus is in neutral gear (N shelves) further, if so, then to control main contactor closed for electric machine controller 14.
Particularly, after judging that pure electric bus is in neutral, whole-control system 1 sends main contactor close commands to electric machine controller 14.Electric machine controller 14, after receiving this main contactor close commands, closes main contactor.Now auto meter 20 shows ready (READY) signal, and display vehicle has entered enforcement state of awaiting orders.
Step S105, when whole-control system 1 judges that gear is switching and brake pedal signal is effective, process gear switch action.
Whole-control system 1, when judging that gear switches, judges whether the brake pedal of pure electric bus is stepped on further, if so, then judges that brake pedal signal is effective.Thus, whole-control system 1 can judge that gear switch is effective, process gear switch, thus controls the travel direction of pure electric bus.If judge brake pedal invalidating signal, then maintain range state last time, thus the effect of pure electric bus clean boot can be ensured.
Below with reference to Fig. 4, the pure electric bus clean boot time sequence control logic flow process of the embodiment of the present invention is described.
Step S201, the key of pure electric bus is switched to ACC shelves from LOCK shelves.
Step S202, whole-control system 1 is when detecting that key is switched to ACC shelves from LOCK shelves, and the low-voltage equipment of pure electric bus is electrically connected, all low-voltage equipment power-on self-tests.Wherein, low-voltage equipment comprises whole-control system 1, electric machine controller 14 and battery management system 10.
Step S203, auto meter 20 shows state and the parameter of each system.
Step S204, whole-control system 1 judges whether key forwards ON shelves to by ACC shelves first, if so, then performs step S205, otherwise performs step S206.
Step S205, whole-control system 1 judges that whether battery management system 10 is standby, if so, then performs step S207, otherwise returns step S203, rejudge key signal.
Step S206, whole-control system 1 judges that whether High voltage output is effective, if so, then performs step S210, otherwise returns step S203.
Step S207, whole-control system 1 judges whether electric machine controller 14 is in normal condition, if so, then performs step S208, otherwise returns step S203.
Step S208, whole-control system 1 sends to battery management system 10 and opens high pressure order.
Step S209, battery management system 10 carries out the action of unlatching high pressure after receiving and opening high pressure order, then performs step S206.
Particularly, battery management system 10 starts a series of actions carrying out out high pressure after receiving and opening high pressure order, and after all are normal, the state of battery management system 10 carries out enabled state; Otherwise report error status, now all operations of chaufeur, whole-control system 1 is all disregarded.
Step S210, whole-control system 1 closed relay switch, allows all additional high pressure using electricity systems to start working.
Step S211, whole-control system 1 judges whether key forwards START shelves to from ON shelves first, if so, then performs step S212, otherwise performs step S217.
Step S212, whole-control system 1 judges whether battery is in enabled state, if so, then performs step S213, otherwise returns step S203.
Step S213, whole-control system 1 judges whether electric machine controller 14 is in normal condition, if so, then performs step S214, otherwise returns step S203.
Step S214, whole-control system 1 judges that whether gear is at neutral gear (N shelves), if so, then performs step S215, otherwise returns step S203.
Step S215, whole-control system 1 sends main contactor close commands to electric machine controller 14.
Step S216, after electric machine controller 14 receives main contactor close commands, closed main contactor.
Step S217, whole-control system 1 judges whether gear switches, and if so, then performs step S218, otherwise returns step S203.
Step S218, whole-control system 1 judges that whether speed-slackening signal is effective, and if so, then perform step S219, otherwise return step S203, whole-control system 1 disregards this gear switch action.
Particularly, whole-control system 1, when judging that brake pedal is stepped on, judges that speed-slackening signal is effective.
Step S219, whole-control system 1 judges that gear switch is effective.
According to the method for the pure electric bus safe starting time sequence control logic of the embodiment of the present invention, the startup High voltage output that pure electric bus can be safe when starting can be guaranteed, improve when the pure electric bus of driver's operation starts and ensure vehicle safety and device security, thus the safety of elec. vehicle, each electrical equipment and passenger can be ensured.
Describe and can be understood in diagram of circuit or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.Scope of the present invention is by claims extremely equivalency.
Claims (8)
1. a method for pure electric bus safe starting time sequence control logic, is characterized in that, comprise the steps:
When the whole-control system of described pure electric bus detects that the key of pure electric bus is switched to ACC shelves from LOCK shelves, the low-voltage equipment of described pure electric bus carries out power-on self-test;
When described whole-control system detects that described key is switched to ON shelves from described ACC shelves, check the battery management system of described pure electric bus and electric machine controller whether normal, if it is start High voltage output;
Described whole-control system judges that whether High voltage output is normal, if it is allows the high-voltage power system of described pure electric bus to be use high-tension current;
When described whole-control system detects that described key is switched to START shelves from described ON shelves, whether detect described pure electric bus meets pre-conditioned, if so, then allow described motor controller controls main contactor to close and enter operation armed state to control described pure electric bus;
When described whole-control system judges that gear is switching and brake pedal signal is effective, process described gear switch action.
2. the method for pure electric bus safe starting time sequence control logic as claimed in claim 1, it is characterized in that, after the low-voltage equipment power-on self-test of described pure electric bus, described whole-control system sends the state parameter of described low-voltage equipment to the auto meter of described pure electric bus, and the state parameter of described low-voltage equipment is shown by the auto meter of described pure electric bus, wherein, described low-voltage equipment comprises whole-control system, electric machine controller and battery management system.
3. the method for pure electric bus safe starting time sequence control logic as claimed in claim 2, it is characterized in that, described state parameter comprises cell pressure, battery temperature, motor status and motor temperature.
4. the method for pure electric bus safe starting time sequence control logic as claimed in claim 1, is characterized in that, normally whether the battery management system of the pure electric bus of described inspection and electric machine controller, comprise the steps:
Described whole-control system judges that whether described battery management system is standby, if so, then judges whether described electric machine controller is in normal condition further;
If so, then the order of unlatching high pressure is sent to start High voltage output to described battery management system.
5. the method for pure electric bus safe starting time sequence control logic as claimed in claim 4, is characterized in that, the auto meter of described pure electric bus shows the state variation of described battery management system in real time.
6. the method for pure electric bus safe starting time sequence control logic as claimed in claim 1, is characterized in that, described whole-control system is after judging that High voltage output is normal, and closing relay switch, allows high-voltage power system work.
7. the method for pure electric bus safe starting time sequence control logic as claimed in claim 1, is characterized in that, whether the described pure electric bus of described detection meets pre-conditioned, comprises the steps:
Described whole-control system judges whether described battery management system is in enabled state, if so, then judges whether electric machine controller is in normal condition further;
After judging that described electric machine controller is in normal condition, judge whether the gear of described pure electric bus is in neutral gear further, if so, then described motor controller controls main contactor closes.
8. the method for pure electric bus safe starting time sequence control logic as claimed in claim 1, it is characterized in that, described whole-control system is when judging that gear switches, judge whether the brake pedal of described pure electric bus is stepped on further, if, then judge that brake pedal signal is effective, and judge that gear switch is effective further, otherwise maintain range state last time.
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105774696A (en) * | 2014-12-23 | 2016-07-20 | 中国端子电业股份有限公司 | Vehicle control system and vehicle control method |
| CN104494538B (en) * | 2014-12-29 | 2016-10-05 | 柳州延龙汽车有限公司 | Electric automobile anti-error startup control strategy |
| CN104527545A (en) * | 2015-01-04 | 2015-04-22 | 中通客车控股股份有限公司 | Electric vehicle safety starting method and system |
| CN107662500B (en) * | 2016-07-28 | 2020-09-04 | 长城汽车股份有限公司 | Pure electric vehicle power-on control method and pure electric vehicle |
| CN107487229B (en) * | 2017-08-21 | 2018-08-03 | 上海豪骋智能科技有限公司 | A kind of pure electric automobile startup control method |
| CN107965569B (en) * | 2017-10-27 | 2020-05-05 | 德韧干巷汽车系统（上海）有限公司 | Control method of electronic shift-by-wire actuator |
| CN107914582B (en) * | 2017-11-28 | 2019-06-21 | 成都雅骏新能源汽车科技股份有限公司 | Electric car electric security system and its control method above and below |
| CN108215801A (en) * | 2017-12-29 | 2018-06-29 | 东风柳州汽车有限公司 | Electric automobile high-voltage electrification control method |
| CN109278768A (en) * | 2018-10-12 | 2019-01-29 | 株洲时代电子技术有限公司 | A kind of subway Operation Van |
| CN109263667A (en) * | 2018-10-12 | 2019-01-25 | 株洲时代电子技术有限公司 | A kind of subway tractor |
| CN109491370A (en) * | 2018-12-07 | 2019-03-19 | 安徽江淮汽车集团股份有限公司 | A kind of method of controlling security and system of automatic driving test |
| CN112590615B (en) * | 2020-12-30 | 2022-06-07 | 大运汽车股份有限公司 | Pure electric power-on and power-off control method for new-energy commercial vehicle |
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| CN201717170U (en) * | 2010-06-18 | 2011-01-19 | 浙江吉利汽车研究院有限公司 | Key switch device of electric vehicle |
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| CN201717170U (en) * | 2010-06-18 | 2011-01-19 | 浙江吉利汽车研究院有限公司 | Key switch device of electric vehicle |
| CN203157894U (en) * | 2013-03-14 | 2013-08-28 | 福建蓝海汽车技术有限公司 | Igniting analog system for electric vehicles |
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