CN106891735A - A kind of distance increasing unit control method - Google Patents
A kind of distance increasing unit control method Download PDFInfo
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- CN106891735A CN106891735A CN201710165804.0A CN201710165804A CN106891735A CN 106891735 A CN106891735 A CN 106891735A CN 201710165804 A CN201710165804 A CN 201710165804A CN 106891735 A CN106891735 A CN 106891735A
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- voltage
- increasing unit
- distance increasing
- output
- control method
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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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
-
- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
-
- 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
- B60L2250/00—Driver interactions
- B60L2250/26—Driver interactions by pedal actuation
-
- 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
-
- 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
-
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
The present invention provides a kind of distance increasing unit control method, comprises the following steps：S1, real-time detection cell voltage；S2, real-time detection user instruction, judge accelerator switch signal condition；S3, according to cell voltage and accelerator switch signal condition, control distance increasing unit output voltage.The distance increasing unit control method that the present invention is provided, including real-time detection cell voltage and detection user instruction judging accelerator switch signal condition, distance increasing unit output voltage is controlled according to cell voltage and accelerator switch signal condition, cell voltage tracking and driving actuator power tracking is effectively realized；Simultaneously, the on off state that detection judges accelerator is only needed in the distance increasing unit control method that the present invention is provided, accelerator depth value and motor driver operating current need not be detected, resistance to BMS thus is disobeyed, i.e., cell voltage tracking and driving actuator power tracking are directly realized according to present battery status and user instruction.
Description
Technical field
The present invention relates to distance increasing unit technical field, and in particular to a kind of distance increasing unit control method.
Background technology
In routine use, it is possible that pure electric mileage is not enough, and charging place and speed are or not existing pure electric car
Can meet and facilitate as fuel vehicle addition fuel oil.In order to pure electric course continuation mileage is not enough in solving the problems, such as routine use, pure
Fuel oil, gas generating set are installed in electro-motive vehicle, fuel electric generator can be started when battery electric quantity is not enough and is generated electricity, be vehicle
Movable motor provides electric energy, and this oil-fired power generating unit is distance increasing unit.
Existing distance increasing unit generally drives magneto to integrate and forms using petrol engine, and control mode typically has three kinds
Mode.The first is fixed rotating speed, and output voltage is determined by load completely.Second is that sampling vehicle accelerates output signal
Voltage, according to accelerator signal voltage by fixed proportion regulation engine speed (for example accelerator signal effective range 0.5~
4.5V, the correspondence engine regulation range of speeds is 2400~3200RPM, and engine speed changes and changes with accelerator signal)；
This mode distance increasing unit output voltage is directly related with accelerator signal size, although driving driver power output is believed with accelerator
Number correlation, but it is also related to car weight etc. to actual road conditions, it is impossible to distance increasing unit power output tracking driving driver work(is met very well
Can and cell voltage tracking, and accelerator signal is the voltage signal of linear change, inconvenience realize accelerator and distance increasing unit it
Between signal isolation.The third be using CAN or other communication modes and BMS (Battery Management System,
Battery management system) communication, according to BMS requirement control engine speed, so as to realize adjusting distance increasing unit power output；This mode
Can preferably realize that meet distance increasing unit tracks to cell voltage, also can substantially realize driving actuator power tracking, and communication
Control realization is more complicated, and existing many vehicles are because BMS is costly without installing BMS.
The content of the invention
State based on existing distance increasing unit and vehicle, present inventor is by research and experiment discovery, existing installation
The accelerator signal output of distance increasing unit vehicle has two groups, and one group is the voltage signal changed according to user's control dynamics,
Another group is the switching signal of the presence or absence of user's control change；By real-time detection battery voltage value and record, then detect acceleration
Device switching signal (can also detectable voltage signals, but without the occurrence of detection voltage, as long as can judge effective and invalid two
Kind of state), when accelerator signal from it is invalid be changed into effective when, the battery voltage value before being changed into effectively with accelerator signal is
Reference voltage, along with being distance increasing unit output voltage according to the deviation of battery electric quantity information setting, journey is increased further according to current
Device power output or electric current regulation engine speed.Because the output voltage of distance increasing unit can follow battery voltage to change and become
Change, then can realize that distance increasing unit power output whole or setting range are supplied to driving driver, and control is filled to battery pack
Electric current can be very good to realize in this way in safe range, i.e., cell voltage tracking and vehicle drive a vehicle actuator power with
Track.And the manner need not be communicated with BMS, also without the occurrence of sampling accelerator linear voltage, it is convenient to realize
Signal isolation, can have more preferable cost advantage and convenience in product realization, be very beneficial for marketing.
For the technical problem that prior art is present, the present invention provides a kind of distance increasing unit control method, what the method was used
DC voltage control signal is switching signal, thus need not detect accelerator depth value and motor driver operating current, and
And do not need BMS.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme：
A kind of distance increasing unit control method, the described method comprises the following steps：
S1, real-time detection cell voltage；
S2, real-time detection user instruction, judge accelerator switch signal condition；
S3, according to cell voltage and accelerator switch signal condition, control distance increasing unit output voltage.
Further, in the step S2, when accelerator switch signal level from it is invalid be changed into effective when, record accelerator
Switching signal be changed into useful signal before cell voltage, using the cell voltage as output reference voltage, and according to described
Reference voltage estimating remaining capacity of battery, distance increasing unit output voltage phase is obtained further according to the battery dump energy and reference voltage
To the default bias voltage of reference voltage, the reference voltage is finally exported into electricity with default bias voltage sum as distance increasing unit
Pressure.
Further, when the battery dump energy is less than the first setting capability value, showing that battery electric quantity is not enough needs to fill
Electricity, the correspondence default bias voltage is for one on the occasion of using higher than reference voltage output as distance increasing unit output voltage.
Further, when the battery dump energy holds more than or equal to the first setting capability value and less than or equal to the second setting
During value, show that battery electric quantity can be followed, the correspondence default bias voltage is 0, using equal to reference voltage output as increasing journey
Device output voltage.
Further, when the battery dump energy is more than the second setting capability value, show that battery electric quantity abundance can put
Electricity, the correspondence default bias voltage is a negative value, using less than reference voltage output as distance increasing unit output voltage.
Further, in the step S2, when accelerator switch signal level is from being effectively changed into invalid, vehicle output
Power is zero, and now the output current of distance increasing unit is equal to charging current, calculates distance increasing unit output current during without signal for faster, and sentence
The scope of the output current of breaking：Reduce voltage bias amount when the output current is more than setting electric current, when the output current
Keep voltage bias amount constant when in the range of setting electric current, voltage bias are increased when the output current is less than setting electric current
Amount.
Compared with prior art, the distance increasing unit control method that the present invention is provided, including real-time detection cell voltage and detection
User instruction controls distance increasing unit to judge accelerator switch signal condition according to cell voltage and accelerator switch signal condition
Output voltage, effectively realizes cell voltage tracking and driving actuator power tracking.Meanwhile, in control method of the present invention only
Detection is needed to judge the on off state of accelerator, it is not necessary to detect accelerator depth value and motor driver operating current, thus
Resistance to BMS is disobeyed, i.e., cell voltage tracking and driving actuator power are directly realized according to present battery status and user instruction
Tracking, existing diode full-bridge rectification formula distance increasing unit or other can the distance increasing unit of voltage stabilizing be capable of achieving this control method.
Brief description of the drawings
Fig. 1 is distance increasing unit control method schematic flow sheet provided in an embodiment of the present invention.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Refer to shown in Fig. 1, the present invention provides a kind of distance increasing unit control method, the described method comprises the following steps：
S1, real-time detection cell voltage, such as with the frequency Real-time Collection cell voltage of 100 times per second, now distance increasing unit
In standby not output state；
S2, real-time detection user instruction, judge accelerator switch signal condition, and such as high level is useful signal, low electricity
It is invalid signals to put down；
S3, according to cell voltage and accelerator switch signal condition, control distance increasing unit output voltage.
As specific embodiment, in the step S2, when accelerator switch signal level from it is invalid be changed into effective when, note
I.e. user sends the cell voltage before instructing before record accelerator switch signal is changed into useful signal, using the cell voltage as defeated
The reference voltage for going out, and according to the reference voltage estimating remaining capacity of battery, further according to the battery dump energy and benchmark
Voltage obtains the default bias voltage of distance increasing unit output voltage relative datum voltage, finally by the reference voltage and default biasing
Voltage sum controls the output current of distance increasing unit as distance increasing unit output voltage, it is achieved thereby that voltage-tracing and power
Tracking.In the present embodiment, according to the cell voltage and the mode of operation of setting for detecting, complete on the basis of cell voltage
To control the voltage output of distance increasing unit, thus the simple cost of control mode is relatively low, is conducive to marketing.
Used as specific embodiment, the principle according to the cell voltage estimating remaining capacity of battery is：Remaining battery electricity
Amount is proportional to cell voltage, battery dump energy voltage and dump energy into line between 20~90% for general battery
Sex ratio, voltage and dump energy into similar index variation when less than 20% or more than 90%；With the nominal 12V plumbic acids electricity of monomer
As a example by pond, during standing cell voltage be 13.2V when electricity about 90%, voltage be 12.0V when electricity about 20%；Because battery is special
Property, be ensure battery performance and service life, it is necessary to used in more than 20% electricity of battery, and charging voltage no more than electricity
Pond most safe voltage high (generally 14.5V).
As specific embodiment, when the battery dump energy is less than the first setting capability value such as 30%, battery is drawn
Not enough power supply needs to charge, the correspondence default bias voltage for one on the occasion of such as 1V, now using higher than reference voltage export as
Distance increasing unit output voltage, i.e., with the voltage output higher than cell voltage 1V.
As specific embodiment, when the battery dump energy is more than or equal to the first setting capability value such as 30% and is less than
During equal to the second setting capability value such as 70%, show that battery electric quantity can be followed, the correspondence default bias voltage is 0V, to be equal to
Reference voltage is exported as distance increasing unit output voltage, i.e., with the identical voltage output of cell voltage.
As specific embodiment, when the battery dump energy is more than the second setting capability value such as 70%, battery is drawn
Electricity abundance can discharge, and the correspondence default bias voltage is a negative value such as -0.5V, using less than reference voltage output as increasing
Journey device output voltage, i.e., with the voltage output less than cell voltage 0.5V.
In three specific embodiments previously with regard to distance increasing unit output voltage, those skilled in the art should be bright
In vain, not necessarily 30% and 70% two scope point of the judgement value range of the battery dump energy, those skilled in the art
Can also be required to adjust according to user；Similarly, the default bias voltage is also not necessarily 1V, 0V and -0.5V, art technology
Personnel can also adjust amount of bias according to practical application, or setting change curve mode calculates voltage bias amount.In addition, output
Voltage bias, can be one analog quantity of output, may also be in programming data output to another subprogram.
It is whole when accelerator switch signal level is from being effectively changed into invalid in the step S2 as specific embodiment
The power of car output is zero, and now the output current of distance increasing unit is equal to charging current, calculates distance increasing unit output during without signal for faster
Electric current, and judge the scope of the output current：Reduce voltage bias amount when the output current is more than setting electric current, when described
Keep voltage bias amount constant when output current is in the range of setting electric current, increase when the output current is less than setting electric current
Voltage bias amount, is achieved in sampled output current and voltage bias amount is modified and battery charge is accurately controlled.This
Place, general lead-acid battery ideal charge current is that 1A is reasonable value for the battery charge of 0.1C, i.e. 10AH, it is also possible to according to
Battery behavior and total capacitance setting charging current.In the case where charger power capacity is enough, improving charging voltage will
Increase charging current, on the contrary reducing charging voltage can reduce charging current.Meanwhile, in actual applications, voltage bias amount is repaiied
Just can be that each accelerator signal is corrected once when changing, it is also possible to which amendment is multiple；If essence need not be done to battery electric quantity
Really tracking, it is also possible to be not modified to amount of bias, or set the amount of bias of fixed value.
Compared with prior art, the distance increasing unit control method that the present invention is provided, including real-time detection cell voltage and detection
User instruction controls distance increasing unit to judge accelerator switch signal condition according to cell voltage and accelerator switch signal condition
Output voltage, effectively realizes cell voltage tracking and driving actuator power tracking.Meanwhile, in control method of the present invention only
Detection is needed to judge the on off state of accelerator, it is not necessary to detect accelerator depth value and motor driver operating current, thus
Resistance to BMS is disobeyed, i.e., cell voltage tracking and driving actuator power are directly realized according to present battery status and user instruction
Tracking, can specifically realize the accurate control of voltage and power by existing diode full-bridge rectification formula distance increasing unit.Increasing journey
In device application, by detecting distance increasing unit output voltage and electric current, and can be turned automatically adjusting engine according to voltage and current
Speed；Or, by real-time detection user instruction, and can close output to control engine speed according to setting mode of operation.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent, and without deviating from the objective and scope of technical solution of the present invention, it all should cover at this
In the middle of the right of invention.
Claims (6)
1. a kind of distance increasing unit control method, it is characterised in that the described method comprises the following steps：
S1, real-time detection cell voltage；
S2, real-time detection user instruction, judge accelerator switch signal condition；
S3, according to cell voltage and accelerator switch signal condition, control distance increasing unit output voltage.
2. distance increasing unit control method according to claim 1, it is characterised in that in the step S2, when accelerator is opened
OFF signal level from it is invalid be changed into effective when, record accelerator switch signal be changed into useful signal before cell voltage, by this
Cell voltage as output reference voltage, and according to the reference voltage estimating remaining capacity of battery, further according to the battery
Dump energy and reference voltage obtain the default bias voltage of distance increasing unit output voltage relative datum voltage, finally by the benchmark
Voltage is with default bias voltage sum as distance increasing unit output voltage.
3. distance increasing unit control method according to claim 2, it is characterised in that when the battery dump energy is less than first
During setting capability value, show that battery electric quantity deficiency needs to charge, the correspondence default bias voltage is for one on the occasion of with higher than benchmark
Voltage output is used as distance increasing unit output voltage.
4. distance increasing unit control method according to claim 2, it is characterised in that when the battery dump energy is more than or equal to
First setting capability value and during less than or equal to the second setting capability value, show that battery electric quantity can be followed, and correspondence is described default inclined
It is 0 to put voltage, using equal to reference voltage output as distance increasing unit output voltage.
5. distance increasing unit control method according to claim 2, it is characterised in that when the battery dump energy is more than second
During setting capability value, show that battery electric quantity abundance can discharge, the correspondence default bias voltage is a negative value, with less than benchmark
Voltage output is used as distance increasing unit output voltage.
6. distance increasing unit control method according to claim 1, it is characterised in that in the step S2, when accelerator is opened
When OFF signal level is from being effectively changed into invalid, the power of vehicle output is zero, and now the output current of distance increasing unit is equal to the electricity that charges
Stream, calculates distance increasing unit output current during without signal for faster, and judge the scope of the output current：Set when the output current is more than
Determine to reduce voltage bias amount during electric current, keep voltage bias amount constant when the output current is in the range of setting electric current, when
The output current increases voltage bias amount when being less than setting electric current.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710165804.0A CN106891735B (en) | 2017-03-20 | 2017-03-20 | A kind of distance increasing unit control method |
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| CN201710165804.0A CN106891735B (en) | 2017-03-20 | 2017-03-20 | A kind of distance increasing unit control method |
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| CN106891735A true CN106891735A (en) | 2017-06-27 |
| CN106891735B CN106891735B (en) | 2019-05-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110182069A (en) * | 2019-04-11 | 2019-08-30 | 浙江大学 | A kind of range extender of electric vehicle generated output closed loop control method |
| CN112659975A (en) * | 2019-10-16 | 2021-04-16 | 重庆隆鑫机车有限公司 | Voltage stabilization control method and device for power battery voltage and electronic equipment |
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| CN105922986A (en) * | 2016-05-24 | 2016-09-07 | 北京新能源汽车股份有限公司 | Stroke-increasing type electric automobile and mode switching control method and system thereof |
| CN106347132A (en) * | 2016-09-05 | 2017-01-25 | 北京新能源汽车股份有限公司 | Electric automobile and range extender start-stop control method and device thereof |
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| US7224132B2 (en) * | 2004-01-22 | 2007-05-29 | Wavecrest Laboratories, Llc. | Portable range extender operable in automatic and manual modes |
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| CN110182069A (en) * | 2019-04-11 | 2019-08-30 | 浙江大学 | A kind of range extender of electric vehicle generated output closed loop control method |
| CN110182069B (en) * | 2019-04-11 | 2021-07-16 | 浙江大学 | Electric automobile range extender generated power closed-loop control method |
| CN112659975A (en) * | 2019-10-16 | 2021-04-16 | 重庆隆鑫机车有限公司 | Voltage stabilization control method and device for power battery voltage and electronic equipment |
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| Publication number | Publication date |
|---|---|
| CN106891735B (en) | 2019-05-07 |
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