CN105799543A - A reuse method for an extended range type electric vehicle electric machine controller function - Google Patents
A reuse method for an extended range type electric vehicle electric machine controller function Download PDFInfo
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- CN105799543A CN105799543A CN201410828631.2A CN201410828631A CN105799543A CN 105799543 A CN105799543 A CN 105799543A CN 201410828631 A CN201410828631 A CN 201410828631A CN 105799543 A CN105799543 A CN 105799543A
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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
- Y02T10/62—Hybrid vehicles
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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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- 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
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention provides a reuse method for an extended range type electric vehicle electric machine controller function. When a generator controller or a traction electric machine controller breaks down, reuse of the generator controller and the traction electric machine controller is realized through transfer connection of the generator controller and a traction electric machine or the traction electric machine controller and a generator and the corresponding control of a vehicle control unit, so that an emergency handling strategy under the condition of fault of a controller is proposed and a vehicle limp work mode under the fault condition is added; a vehicle can run to a maintenance station through limp and the self-rescue of the vehicle is realized. The method is simple and reliable; the handling measures are taken in terms of control strategies, so that huge modification of vehicle configuration and increase of hardware equipment are not needed; the method is convenient to implement, causes no increase of extra costs and prevents traffic jam caused by breakdown of vehicles.
Description
Technical field
The present invention relates to the multiplexing method of a kind of stroke-increasing electric automobile electric machine controller function.
Background technology
The dynamical system of stroke-increasing electric automobile is mainly made up of electrokinetic cell, traction electric machine system and distance increasing unit unit, electrokinetic cell provides traction electric machine electrical source of power by traction motor controller and drives vehicle to travel, when electrokinetic cell electricity deficiency, the generating of distance increasing unit unit starting is power battery charging.General distance increasing unit unit is made up of electromotor and integrated starter-generator.Under normal mode of operation, engine controller controls engine start, and driven by engine generator operation generates electricity and to power battery charging；Traction motor controller controls traction electric machine and runs and drive vehicle to travel.Two electric machine controller functions cannot multiplexing, when traction motor controller fault, vehicle will cast anchor, and can only be parked in original place and wait for rescue；And when electrokinetic cell electricity is very low, engine controller breaks down, when distance increasing unit unit cannot be power battery charging, electrokinetic cell electricity is not enough so that vehicle leaves go back to maintenance station with electric-only mode, and such vehicle also can only be parked in original place and wait for rescue.Therefore due between traction motor controller and engine controller cannot multiplexing, once traction motor controller and engine controller fault, or electrokinetic cell electricity is low, all will cause that vehicle casts anchor, and have impact on the normal traveling of vehicle.
Summary of the invention
The technical problem to be solved is to provide the multiplexing method of a kind of stroke-increasing electric automobile electric machine controller function, this method is under certain electric machine controller failure condition of vehicle, engine controller and traction motor controller take certain measure, realize multiplexing functions, thus limping can be enabled the vehicle to open go back to maintenance station, it is achieved saving oneself of vehicle.
For solving above-mentioned technical problem, the multiplexing method of stroke-increasing electric automobile electric machine controller function of the present invention, in stroke-increasing electric automobile, engine controller controls electromotor and runs, engine driven generators works and to power battery charging, traction motor controller controls traction electric machine and drives vehicle to travel, electrokinetic cell connects engine controller and traction motor controller respectively through main relay, and entire car controller is carried out information respectively and alternately and controls by CAN with engine controller, traction motor controller and electrokinetic cell；This method comprises the steps:
Step one, when engine controller fault, disconnect the three-phase power line between engine controller and electromotor and holding wire, disconnect the three-phase power line between traction motor controller and traction electric machine and holding wire, adopt patchcord that electromotor three-phase power line and holding wire are connected to traction motor controller；
Step 2, closedown traction control mode input signal switch, traction motor controller switches to Generation Control strategy after receiving this shutdown signal, entire car controller is adjusted to traction motor controller Generation Control strategy simultaneously；
Step 3, being powered on by vehicle control unit controls car load high-pressure system, the main relay that engine controller is connected with electrokinetic cell disconnects, and traction motor controller controls high pressure and powers on；
Step 4, entire car controller send work order by CAN to traction motor controller, and traction motor controller controls engine start, and engine driven generators runs and to power battery charging；
After step 5, entire car controller detect that power battery charging terminates, send stopping electromotor work order by CAN to traction motor controller, and traction motor controller controls high pressure power-off；
Step 6, the patchcord disconnected between electromotor three-phase power line and holding wire and traction motor controller, and traction electric machine three-phase power line and holding wire are taken back traction motor controller, open traction control mode input signal switch simultaneously, vehicle control unit controls system re-powers, being thered is provided power supply by electrokinetic cell, traction motor controller controls traction electric machine and drives vehicle to travel；
Step 7, when traction motor controller fault, disconnect the three-phase power line between engine controller and electromotor and holding wire, disconnect the three-phase power line between traction motor controller and traction electric machine and holding wire, adopt patchcord that traction electric machine three-phase power line and holding wire are connected to engine controller；
Step 8, closedown Generation Control mode input signal switch, engine controller switches to traction electric machine and drives control strategy after receiving this shutdown signal, entire car controller is adjusted to engine controller and drives control strategy simultaneously；
Step 9, being powered on by vehicle control unit controls car load high-pressure system, the main relay that traction motor controller is connected with electrokinetic cell disconnects, and engine controller controls high pressure and powers on；
Step 10, entire car controller send work order by CAN to engine controller, and engine controller limits the output of traction electric machine and controls traction electric machine operation, and traction electric machine drives vehicle to travel with electric-only mode.
Owing to the multiplexing method of stroke-increasing electric automobile electric machine controller function of the present invention have employed technique scheme, namely this method is under engine controller or traction motor controller failure condition, switching by engine controller with traction electric machine or traction motor controller and electromotor, and after entire car controller is controlled accordingly, realize the multiplexing of engine controller and traction motor controller, thus realizing when the emergency processing strategy in a certain controller failure situation, increase the vehicle limping mode of operation under a kind of failure condition, thus limping can be enabled the vehicle to open go back to maintenance station, realize saving oneself of vehicle.This method is simple and reliable, takes treatment measures from control strategy, it is not necessary to a large amount of changes vehicles configuration, increase hardware devices, and implement convenient, it is not necessary to increase extra cost, it is to avoid vehicle casts anchor the traffic jam caused.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the present invention is described in further detail:
When Fig. 1 is engine controller fault in this method, traction motor controller controls generator operation mode schematic diagram；
When Fig. 2 is traction motor controller fault in this method, engine controller controls traction electric machine mode of operation schematic diagram.
Detailed description of the invention
Embodiment is as depicted in figs. 1 and 2, the multiplexing method of stroke-increasing electric automobile electric machine controller function of the present invention, in stroke-increasing electric automobile, engine controller 1 controls electromotor 4 and runs, electromotor 4 drives electromotor 3 to work and electrokinetic cell 6 is charged, traction motor controller 2 controls traction electric machine 5 and drives vehicle 8 to travel, electrokinetic cell 6 connects engine controller 1 and traction motor controller 2 respectively through main relay, and entire car controller 7 carries out information respectively by CAN and alternately and controls with engine controller 1, traction motor controller 2 and electrokinetic cell 6；This method comprises the steps:
Step one, when engine controller 1 fault, disconnect the three-phase power line between engine controller 1 and electromotor 3 and holding wire, disconnect the three-phase power line between traction motor controller 2 and traction electric machine 5 and holding wire, adopt patchcord 9 that electromotor 3 three-phase power line and holding wire are connected to traction motor controller 2；
Step 2, closedown traction control mode input signal switch 71, traction motor controller 2 switches to Generation Control strategy after receiving this shutdown signal, entire car controller 7 is adjusted to traction motor controller Generation Control strategy simultaneously；
Step 3, entire car controller 7 controlling car load high-pressure system and power on, the main relay that engine controller 1 is connected with electrokinetic cell 6 disconnects, and traction motor controller 2 controls high pressure and powers on；
Step 4, entire car controller 7 send work order by CAN to traction motor controller 2, and traction motor controller 2 controls electromotor 4 and starts, and electromotor 4 drives electromotor 3 to run and charges to electrokinetic cell 6；
Step 5, entire car controller 7 send stopping electromotor 4 work order by CAN to traction motor controller 2 after detecting that electrokinetic cell 6 charging terminates, and traction motor controller 2 controls high pressure power-off；
Step 6, the patchcord 9 disconnected between electromotor 3 three-phase power line and holding wire and traction motor controller 2, and traction electric machine 5 three-phase power line and holding wire are taken back traction motor controller 2, open traction control mode input signal switch 71 simultaneously, entire car controller 7 controls system and re-powers, being thered is provided power supply, traction motor controller 2 to control traction electric machine 5 by electrokinetic cell 6 drives vehicle 8 to travel；
Step 7, when traction motor controller 2 fault, disconnect the three-phase power line between engine controller 1 and electromotor 3 and holding wire, disconnect the three-phase power line between traction motor controller 2 and traction electric machine 5 and holding wire, adopt patchcord 9 that traction electric machine 5 three-phase power line and holding wire are connected to engine controller 1；
Step 8, closedown Generation Control mode input signal switch 72, engine controller 1 switches to traction electric machine and drives control strategy after receiving this shutdown signal, entire car controller 7 is adjusted to engine controller and drives control strategy simultaneously；
Step 9, entire car controller 7 controlling car load high-pressure system and power on, the main relay that traction motor controller 2 is connected with electrokinetic cell 6 disconnects, and engine controller 1 controls high pressure and powers on；
Step 10, entire car controller 7 send work order by CAN to engine controller 1, and engine controller 1 limits the output of traction electric machine 5 and controls traction electric machine 5 and run, and traction electric machine 5 drives vehicle 8 to travel with electric-only mode.
Present method solves stroke-increasing electric automobile to cast anchor problem when vehicle in certain controller failure situation, on the existing configuration basis of vehicle, take certain measure to make two controller function multiplexings, it is achieved saving oneself of vehicle.In stroke-increasing electric automobile, engine controller and traction motor controller are identical in functional structure, power output capacity is only likely to difference, therefore two controller functionally reusables, during a certain controller failure, the function of another controller multiplexing failed controller can be adopted, thus avoiding vehicle to cast anchor.
Engine controller and traction motor controller control function switching and implement to carry out in the following two cases:
1) when traction motor controller breaks down, after electrokinetic cell electricity abundance, engine controller is switched to traction electric machine limping control model, and vehicle travels with electric-only mode, in order to open back maintenance station maintenance；
2) when engine controller fault, distance increasing unit unit can not generate electricity and battery electric quantity is not enough, traction motor controller is switched to Generation Control pattern, control electrical power generators, supplement electricity for electrokinetic cell, after electricity is supplied, then traction electric machine is taken back traction motor controller, vehicle travels with electric-only mode again, in order to open back maintenance station maintenance.
This method makes full use of the functional characteristics of two controllers, adopt simple treatment measures, thus realizing when the emergency processing strategy in a certain controller failure situation, increase the vehicle limping mode of operation under a kind of failure condition, the vehicle realized in a certain controller failure situation is saved oneself, it is to avoid the traffic jam caused of casting anchor；This method is simple and reliable, takes treatment measures from control strategy, it is not necessary to a large amount of change vehicle configurations, it is convenient to implement, it is not necessary to increase extra cost.
Claims (1)
1. the multiplexing method of a stroke-increasing electric automobile electric machine controller function, in stroke-increasing electric automobile, engine controller controls electromotor and runs, engine driven generators works and to power battery charging, traction motor controller controls traction electric machine and drives vehicle to travel, electrokinetic cell connects engine controller and traction motor controller respectively through main relay, and entire car controller is carried out information respectively and alternately and controls by CAN with engine controller, traction motor controller and electrokinetic cell；It is characterized in that this method comprises the steps:
Step one, when engine controller fault, disconnect the three-phase power line between engine controller and electromotor and holding wire, disconnect the three-phase power line between traction motor controller and traction electric machine and holding wire, adopt patchcord that electromotor three-phase power line and holding wire are connected to traction motor controller；
Step 2, closedown traction control mode input signal switch, traction motor controller switches to Generation Control strategy after receiving this shutdown signal, entire car controller is adjusted to traction motor controller Generation Control strategy simultaneously；
Step 3, being powered on by vehicle control unit controls car load high-pressure system, the main relay that engine controller is connected with electrokinetic cell disconnects, and traction motor controller controls high pressure and powers on；
Step 4, entire car controller send work order by CAN to traction motor controller, and traction motor controller controls engine start, and engine driven generators runs and to power battery charging；
After step 5, entire car controller detect that power battery charging terminates, send stopping electromotor work order by CAN to traction motor controller, and traction motor controller controls high pressure power-off；
Step 6, the patchcord disconnected between electromotor three-phase power line and holding wire and traction motor controller, and traction electric machine three-phase power line and holding wire are taken back traction motor controller, open traction control mode input signal switch simultaneously, vehicle control unit controls system re-powers, being thered is provided power supply by electrokinetic cell, traction motor controller controls traction electric machine and drives vehicle to travel；
Step 7, when traction motor controller fault, disconnect the three-phase power line between engine controller and electromotor and holding wire, disconnect the three-phase power line between traction motor controller and traction electric machine and holding wire, adopt patchcord that traction electric machine three-phase power line and holding wire are connected to engine controller；
Step 8, closedown Generation Control mode input signal switch, engine controller switches to traction electric machine and drives control strategy after receiving this shutdown signal, entire car controller is adjusted to engine controller and drives control strategy simultaneously；
Step 9, being powered on by vehicle control unit controls car load high-pressure system, the main relay that traction motor controller is connected with electrokinetic cell disconnects, and engine controller controls high pressure and powers on；
Step 10, entire car controller send work order by CAN to engine controller, and engine controller limits the output of traction electric machine and controls traction electric machine operation, and traction electric machine drives vehicle to travel with electric-only mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410828631.2A CN105799543B (en) | 2014-12-29 | 2014-12-29 | The multiplexing method of stroke-increasing electric automobile electric machine controller function |
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| CN201410828631.2A CN105799543B (en) | 2014-12-29 | 2014-12-29 | The multiplexing method of stroke-increasing electric automobile electric machine controller function |
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| CN105799543B CN105799543B (en) | 2019-07-30 |
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Cited By (2)
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| CN109459083A (en) * | 2018-09-14 | 2019-03-12 | 武汉科技大学 | A kind of stroke-increasing electric automobile fault diagnosis experiment porch |
| CN114083985A (en) * | 2020-06-30 | 2022-02-25 | 比亚迪股份有限公司 | Vehicle safety control method and device, power assembly and vehicle |
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| CN114083985B (en) * | 2020-06-30 | 2024-02-27 | 比亚迪股份有限公司 | Vehicle safety control method and device, power assembly and vehicle |
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| CN105799543B (en) | 2019-07-30 |
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