CN107856538A - A kind of electric drive system for electric vehicles operating mode switching control method - Google Patents
A kind of electric drive system for electric vehicles operating mode switching control method Download PDFInfo
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- CN107856538A CN107856538A CN201711120842.0A CN201711120842A CN107856538A CN 107856538 A CN107856538 A CN 107856538A CN 201711120842 A CN201711120842 A CN 201711120842A CN 107856538 A CN107856538 A CN 107856538A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A kind of electric drive system for electric vehicles operating mode switching control method, power drive system are made up of electric machine controller and motor, are characterized in that：Desired signal is instructed to realize mode of operation unit switching control by the collection of electric machine controller hardware data and CAN；Power drive system mode of operation includes successively：Park mode unit, awakening mode unit, high pressure ready mode unit, high pressure standby mode unit, DCDC mode of operations unit, electric drive mode of operation unit；Electric automobile, by this accurate switching working mode unit of mode of operation unit method for handover control, realizes vehicle safe and reliable operation under various operating modes in actual moving process.The present invention can be only in unique mode of operation at any time, any mode of operation is in mutual exclusion state, the method, which has evaded being also easy to produce during multi-operation mode concurrent working, delays work and situation that work schedule is chaotic, and the security, stability, accuracy of power drive system pattern switching has been effectively ensured.
Description
Technical field
The invention belongs to electric vehicle engineering field, is related to a kind of electric drive system for electric vehicles mode of operation switching control
Method.
Background technology
Electric drive system for electric vehicles exploitation is a core work of electric automobile research and development, due to electric automobile electric drive
System is related to multiple-working mode unit, coordinates control process complexity in vehicle operation, and domestic and international each major company all exists
Pay close attention to and research and develop the control method that power drive system mode of operation coordinates switching.
The stabilization of electric drive system for electric vehicles mode of operation switching, quick, exact relationship to vehicle security, reliably
Property and comfortableness, therefore the developmental research to electric drive system for electric vehicles mode of operation is particularly important, and major vehicle factor
Improve a huge challenge of automotive quality.
The content of the invention
It is an object of the invention to provide a kind of electric drive system for electric vehicles operating mode switching control method.It is a kind of
The control method switched between electric drive system for electric vehicles mode of operation, mode unit, this method are thought using modular design
Think, by power drive system operation stateful be divided into different mode of operation units, different work according to control strategy
Mode unit realizes different control functions, and this modular control method advantageously in the modification and debugging of program, adds
The development process of fast electric drive system for electric vehicles.
What the control method of the present invention was realized in：A kind of electric drive system for electric vehicles mode of operation switching control side
Method, power drive system are made up of electric machine controller and motor, it is characterised in that：Gathered by electric machine controller hardware data
Mode of operation unit switching control is realized with CAN instruction desired signals；Power drive system mode of operation includes successively：Park mode
Unit, awakening mode unit, high pressure ready mode unit, high pressure standby mode unit, DCDC mode of operations unit, electric drive work
Operation mode unit；Electric automobile accurately switches work in actual moving process, by this mode of operation unit method for handover control
Operation mode unit, realize vehicle safe and reliable operation under various operating modes.
The electric drive system for electric vehicles operating mode switching control method of the present invention, implementation step are as follows：
Step 1：The first job mode unit that power drive system enters from closed mode is park mode unit；Dormancy mould
Under formula unit, power drive system carries out software and hardware self-test, breakdown judge, control chip power supply, CAN beginning energy；
Step 2：Next mode of operation unit that power drive system enters from park mode unit is awakening mode unit,
Under awakening mode unit, power drive system operating on low voltage and toward sending CAN message in vehicle CAN network；Awakening mode unit exists
In dormancy mechanism and the lower return park mode unit of vehicle CAN instructions；
Step 3：Next mode of operation unit that power drive system enters from awakening mode unit is high pressure ready mode list
Member, under high pressure ready mode unit, whether detection power drive system has catastrophe failure and processes, and prepares upper high pressure；It is high
Ready mode unit is pressed to be returned under dormancy mechanism and vehicle CAN instructions in awakening mode unit；
Step 4：Next mode of operation unit that power drive system enters from high pressure ready mode unit is high pressure standby mode
Unit, high pressure standby mode unit are upper high pressure, IGBT work, wait vehicle instruction progress next step action, and high pressure is treated
Machine mode unit is a kind of high-voltage safety state, there is active discharge function；High pressure standby mode unit is in dormancy mechanism and vehicle
CAN instructions are lower to be returned in awakening mode unit；
Step 5：Next mode of operation unit that power drive system enters from high pressure standby mode unit is DCDC mode of operations
Unit, DCDC mode of operations unit are applied to the power drive system of integrated DCDC functions, now DCDC normal works；DCDC works
Mode unit returns to high pressure standby mode unit, awakening mode unit under dormancy mechanism and vehicle CAN instructions；
Step 6：Next mode of operation unit that power drive system enters from DCDC mode of operations unit is electric drive Working mould
Formula unit, under electric drive mode of operation unit, power drive system carries out electronic, generating, the direct torque of zero-turn square；Electric drive
Mode of operation unit can return to high pressure standby mode unit, DCDC mode of operation lists under dormancy mechanism and vehicle CAN instructions
Member.
Method for handover control of the present invention is equally applicable to the power drive system of integrated DCDC functions.
Power drive system is as one of electric automobile core system, and its intricate operation is complicated, and it is related to electric automobile
Dynamic property and security, increase a kind of electric drive system for electric vehicles operating mode switching control method, can effectively will be multiple
Miscellaneous work is divided, and the method for unit switching is controlled in mode.Under different mode of operation units, electric drive trains
System is specifically worked, and is effectively prevented from malfunctioning caused by error message, can so be greatly improved the peace of power drive system
Quan Xing.
The electric drive system for electric vehicles operating mode switching control method of the present invention, it can be only at any time unique
Mode of operation unit, any mode of operation unit is in mutual exclusion state, and the method has evaded the parallel work of multi-operation mode unit
As when be also easy to produce and delay work and situation that work schedule is chaotic, be effectively ensured the switching of power drive system mode unit stabilization,
Accurately.
Power drive system is made up of motor and electric machine controller, and it has high pressure and operating on low voltage part, different
Mode of operation can be operated in corresponding voltage segment, effectively be reduced without high power consumption situation caused by mode of operation switching.
The electric drive system for electric vehicles mode of operation switching of the present invention is by electric machine controller sensor, I/O, CAN
Chip enters line number to data and vehicle CAN letters and quickly gathers judgement and filter control, and power drive system quickly can accurately be cut
Change jobs mode unit, power drive system is optimal working condition, ensure that vehicle when all operating modes are run it is reliable,
Safety.
The electric drive system for electric vehicles mode of operation dormancy mechanism of the present invention, it is necessary first to called out into safe condition
Awake, high pressure standy operation mode unit carries out the detection such as failure, torque, rotating speed, busbar voltage, treats that every detection meets dormancy
State, into park mode, until power drive system shuts down.The dormancy mechanism can be prevented effectively in power drive system high pressure shape
State or working condition abruptly enter that system caused by dormancy is out of control, high-voltage safety harm.
Brief description of the drawings
Fig. 1 is the park mode unit control block diagram of the present invention；
Fig. 2 is the awakening mode unit control block diagram of the present invention；
Fig. 3 is the high pressure ready mode unit control block diagram of the present invention；
Fig. 4 is the high pressure standby mode unit control block diagram of the present invention；
Fig. 5 is the DCDC mode of operation unit control block diagrams of the present invention；
Fig. 6 is the electric drive mode of operation unit control block diagram of the present invention；
Fig. 7 is the electric drive system for electric vehicles mode of operation handover control system figure of the present invention.
Below in conjunction with accompanying drawing by example, the present invention is described in further detail, but following examples are only this hair
Bright example, does not represent the rights protection scope that the present invention is limited, and the scope of the present invention will with right
Book is asked to be defined.
Embodiment
Embodiment 1
As shown in Fig. 1-7, the present invention will be described in detail the operation principle and process of the present invention.
Fig. 1 is park mode unit control block diagram.Power drive system in off position when, electric machine controller receives vehicle
When CAN message or ignition switch ON shelves, electric machine controller carries out software and hardware initialization, light current self-test, breakdown judge；Self-test knot
After Shu Hou, 200ms, power drive system enters park mode unit；Power drive system is closed igniting and opened under park mode unit
Close, after 200ms, power drive system shuts down again.
Fig. 2 is awakening mode unit control block diagram.Under park mode unit, electric machine controller receives power drive system
Vehicle wakes up instruction, and power drive system enters awakening mode unit from park mode unit, now enables CAN and sends；Electric drive
Under awakening mode unit, electric machine controller is detected during charged state and receives vehicle dormancy instruction system, and ignition switch is closed
Close, after 200ms, power drive system enters park mode unit；Power drive system is under awakening mode unit, electric machine controller inspection
Survey is less than 60VDC without vehicle CAN message, now busbar voltage, and ignition switch is closed, and after 200ms, power drive system enters dormancy
Mode unit.
Fig. 3 is high pressure ready mode unit control block diagram.Under awakening mode unit, electric machine controller exists power drive system
Failure is detected, if occurring without catastrophe failure, power drive system enters high pressure ready mode unit；Power drive system prepares in high pressure
Under mode unit, when electric machine controller detects charged state, vehicle dormancy instruction is now received, ignition switch is closed, 200ms
Afterwards, power drive system enters awakening mode unit；Power drive system is under high pressure ready mode unit, electric machine controller detection nothing
Vehicle CAN message, now busbar voltage be less than 60VDC, ignition switch is closed, and after 200ms, power drive system enters awakening mode
Unit.
Fig. 4 high pressure standby mode unit control block diagrams.Power drive system is under high pressure ready mode unit, electric machine controller
Failure is detected, if occurring without catastrophe failure and receiving vehicle high pressure standby command, power drive system enters high pressure standby mode list
Member；Power drive system is under high pressure standby mode unit, if electric machine controller receives the instruction of vehicle active discharge, electric machine controller
Active discharge action is performed, now keeps power drive system high pressure standby mode unit, if being instructed without active discharge, motor control
When device detects charged state, vehicle dormancy instruction is received, ignition switch is closed, and power drive system enters awakening mode unit；
Under high pressure standby mode unit, electric machine controller detection is less than power drive system without vehicle CAN message, now busbar voltage
60VDC, ignition switch are closed, and power drive system enters awakening mode unit.
Fig. 5 is DCDC mode of operation unit control block diagrams.Under power drive system DCDC mode of operation units, electric machine controller
Detection without charging, without catastrophe failure, battery main relay adhesive when and receive vehicle DCDC work orders, power drive system enters
DCDC mode of operation units；For power drive system under DCDC mode of operation units, electric machine controller receives the standby finger of vehicle high pressure
Order, power drive system enter high pressure standby mode unit；Power drive system is under DCDC mode of operation units, electric machine controller inspection
When measuring charged state, vehicle dormancy instruction is received, ignition switch is closed, and power drive system enters awakening mode unit；Electricity drives
For dynamic system under DCDC mode of operation units, electric machine controller detection is less than 60VDC without vehicle CAN message, now busbar voltage,
Ignition switch is closed, and power drive system enters awakening mode unit.
Fig. 6 is electric drive mode of operation unit control block diagram.Power drive system is under DCDC mode of operation units, motor control
Device processed receives the work order of vehicle power drive system and without catastrophe failure, into electric drive mode of operation unit；Electric drive works
Under mode unit, electric machine controller detection is without vehicle CAN message, and torque output is 0, when motor speed drops to below safe speed
When, power drive system enters high pressure standby mode unit；Under electric drive mode of operation unit, electric machine controller receives vehicle high pressure
Standby command, power drive system enter high pressure standby mode unit；Under electric drive mode of operation unit, electric machine controller receives whole
Car DCDC work orders, when motor speed is dropped to below safe speed, power drive system enters DCDC mode of operation units；Electricity
Drive under mode of operation unit, receive the instruction of vehicle direct torque, perform direct torque.
Fig. 7 is the electric drive system for electric vehicles mode of operation handover control system figure of the present invention, and it is the hair of the present invention
Bright design total figure, the course of work in Fig. 7 are made up of Fig. 1-6 courses of work, Fig. 7 same Fig. 1-6 of inventive principle.
Claims (3)
1. a kind of electric drive system for electric vehicles operating mode switching control method, power drive system is by electric machine controller and driving
Motor forms, it is characterised in that：Desired signal is instructed to realize mode of operation list by the collection of electric machine controller hardware data and CAN
First switching control；Power drive system mode of operation includes successively：Park mode unit, awakening mode unit, high pressure ready mode
Unit, high pressure standby mode unit, DCDC mode of operations unit, electric drive mode of operation unit；Electric automobile is in actual motion
During, by this accurate switching working mode unit of mode of operation unit method for handover control, realize vehicle in various operating modes
Lower safe and reliable operation.
2. electric drive system for electric vehicles operating mode switching control method according to claim 1, implementation step is such as
Under：
Step 1：The first job mode unit that power drive system enters from closed mode is park mode unit；Dormancy mould
Under formula unit, power drive system carries out software and hardware self-test, breakdown judge, control chip power supply, CAN beginning energy；
Step 2：Next mode of operation unit that power drive system enters from park mode unit is awakening mode unit,
Under awakening mode unit, power drive system operating on low voltage and toward sending CAN message in vehicle CAN network；Awakening mode unit exists
In dormancy mechanism and the lower return park mode unit of vehicle CAN instructions；
Step 3：Next mode of operation unit that power drive system enters from awakening mode unit is high pressure ready mode list
Member, under high pressure ready mode unit, whether detection power drive system has catastrophe failure and processes, and prepares upper high pressure；It is high
Ready mode unit is pressed to be returned under dormancy mechanism and vehicle CAN instructions in awakening mode unit；
Step 4：Next mode of operation unit that power drive system enters from high pressure ready mode unit is high pressure standby mode
Unit, high pressure standby mode unit are upper high pressure, IGBT work, wait vehicle instruction progress next step action, and high pressure is treated
Machine mode unit is a kind of high-voltage safety state, there is active discharge function；High pressure standby mode unit is in dormancy mechanism and vehicle
CAN instructions are lower to be returned in awakening mode unit；
Step 5：Next mode of operation unit that power drive system enters from high pressure standby mode unit is DCDC mode of operations
Unit, DCDC mode of operations unit are applied to the power drive system of integrated DCDC functions, now DCDC normal works；DCDC works
Mode unit returns to high pressure standby mode unit, awakening mode unit under dormancy mechanism and vehicle CAN instructions；
Step 6：Next mode of operation unit that power drive system enters from DCDC mode of operations unit is electric drive Working mould
Formula unit, under electric drive mode of operation unit, power drive system carries out electronic, generating, the direct torque of zero-turn square；Electric drive
Mode of operation unit returns to high pressure standby mode unit, DCDC mode of operation units under dormancy mechanism and vehicle CAN instructions.
3. electric drive system for electric vehicles operating mode switching control method according to claim 1, it is characterised in that：Should
Method for handover control is equally applicable to the power drive system of integrated DCDC functions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711120842.0A CN107856538A (en) | 2017-11-14 | 2017-11-14 | A kind of electric drive system for electric vehicles operating mode switching control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711120842.0A CN107856538A (en) | 2017-11-14 | 2017-11-14 | A kind of electric drive system for electric vehicles operating mode switching control method |
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| CN107856538A true CN107856538A (en) | 2018-03-30 |
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| CN201711120842.0A Withdrawn CN107856538A (en) | 2017-11-14 | 2017-11-14 | A kind of electric drive system for electric vehicles operating mode switching control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109039662A (en) * | 2018-07-16 | 2018-12-18 | 苏州艾普乐思新能源动力系统科技有限公司 | A kind of electric automobile whole consumption control method |
| CN111645535A (en) * | 2020-05-29 | 2020-09-11 | 奇瑞商用车（安徽）有限公司 | Method for converting control modes of driving motor of electric automobile |
| CN111660827A (en) * | 2020-06-03 | 2020-09-15 | 东风小康汽车有限公司重庆分公司 | State machine for range-extended electric automobile and range-extended electric automobile |
| CN113799608A (en) * | 2021-08-23 | 2021-12-17 | 东风汽车集团股份有限公司 | Motor drive system working mode switching control method, device, medium and equipment |
| CN114670674A (en) * | 2022-03-22 | 2022-06-28 | 北京新能源汽车股份有限公司 | Automobile motor controller working mode management method and device and automobile |
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Application publication date: 20180330 |
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