CN108146292B - Electric car method for starting and electric car - Google Patents
Electric car method for starting and electric car Download PDFInfo
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- CN108146292B CN108146292B CN201711400770.5A CN201711400770A CN108146292B CN 108146292 B CN108146292 B CN 108146292B CN 201711400770 A CN201711400770 A CN 201711400770A CN 108146292 B CN108146292 B CN 108146292B
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- electric car
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- torque
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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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2054—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed by controlling transmissions or clutches
-
- 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
- B60L2240/10—Vehicle control parameters
-
- 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
- B60L2240/48—Drive Train control parameters related to transmissions
- B60L2240/486—Operating parameters
-
- 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
- B60L2240/60—Navigation input
- B60L2240/64—Road conditions
- B60L2240/642—Slope of road
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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 embodiment of the present invention provides a kind of electric car method for starting and electric car, which comprises detects to electric car present load, obtains the present load amount of the electric car；The starting torque of the electric car is measured according to the present load of the electric car, and the electric car corresponding starting gear in starting is obtained based on the starting torque；The gearbox for controlling the electric car is linked into the starting gear, so that the electric car is started to walk with the starting gear being linked into.The electric car method for starting starting is high-efficient, can reduce the vehicle starting acceleration time, improves the driving experience of driver.
Description
Technical field
The present invention relates to technical field of new energy, in particular to a kind of electric car method for starting and electronic
Automobile.
Background technique
With the continuous development of science and technology, the continuous enhancing of people's environmental consciousness, New-energy electric vehicle technology is more
Ground is taken seriously, and for New-energy electric vehicle technology, how to provide the high-efficient starting control program that starts to walk is one
A particularly important problem.
Presently, existing starting control program is started to walk using some fixed gear, and in starting-up process
In shift accelerate by way of ensure that the electric car can normally start to walk.This starting control program starting is inefficient,
It needs driver that longer time is spent to carry out shift and accelerates operation, influence the driving experience of driver.
Summary of the invention
In order to overcome above-mentioned deficiency in the prior art, the purpose of the present invention is to provide a kind of electric car method for starting
And electric car, the electric car method for starting starting is high-efficient, can reduce the vehicle starting acceleration time, improves driver
The driving experience of member.
For method, preferred embodiments of the present invention provide a kind of electric car method for starting, which comprises
Electric car present load is detected, the present load amount of the electric car is obtained；
The starting torque of the electric car is measured according to the present load of the electric car, and is based on the starting
Torque obtains the electric car corresponding starting gear in starting；
The gearbox for controlling the electric car is linked into the starting gear, so that starting of the electric car to be linked into
Gear is started to walk；
The electric car includes multiple gears, and each gear corresponds to different predetermined torque numberical ranges, described to be based on
The starting torque obtain the electric car starting when corresponding starting gear the step of, comprising:
Starting torque predetermined torque numberical range corresponding with each gear is compared；
When the starting torque is located in the corresponding predetermined torque numberical range of a certain gear, determine that the gear is described
The current starting gear of electric car.
It is above-mentioned that electric car present load is detected in preferred embodiments of the present invention, obtain the electronic vapour
After the step of present load amount of vehicle, the present load according to the electric car measures rising for the electric car
Before the step of walking torque, the method also includes:
The gradient for being presently in road to the electric car detects, and obtains corresponding road grade；
Wherein, the present load according to the electric car measures the step of starting torque of the electric car
Include:
According to the present load amount and the road grade of the electric car, the starting of the electric car is calculated
Torque.
In preferred embodiments of the present invention, step that the above-mentioned starting gear for being linked into the electric car is started to walk
Suddenly, comprising:
The accelerator open degree current to the electric car detects, and controls the electricity according to the accelerator open degree detected
The motor of electrical automobile is rotated under the starting gear being currently linked into, to realize that electric car is started to walk.
In preferred embodiments of the present invention, electric car present load is detected described, is obtained described electronic
Before the step of present load amount of automobile, the method also includes:
The corresponding predetermined torque numberical range of each gear of electric car is configured.
For automobile, preferred embodiments of the present invention provide a kind of electric car, and the electric car includes electrically connecting
The control unit for vehicle VCU and automatic gear-box control unit TCU, the VCU connect includes the load detecting module being electrically connected
And gear computing module；
The load detecting module obtains working as the electric car for detecting to electric car present load
Preceding load capacity；
The gear computing module, it is described electronic for being obtained according to the present load amount and the road slope calculation
The starting torque of automobile, and the electric car corresponding starting gear in starting is obtained based on the starting torque；
The TCU, the gearbox for controlling the electric car is linked into the starting gear, so that the electric car
It is started to walk with the starting gear being linked into；
Wherein, the electric car includes multiple gears, and each gear corresponds to different predetermined torque numberical ranges；
The gear computing module is specifically used for starting torque predetermined torque numberical range corresponding with each gear
It is compared；When the starting torque is located in the corresponding predetermined torque numberical range of a certain gear, determine the gear for institute
State the current starting gear of electric car.
In preferred embodiments of the present invention, above-mentioned VCU further includes the gradient being electrically connected with the gear computing module
Detection module；
The slope detection module, the gradient for being presently in road to the electric car detect, and obtain pair
The road grade answered；
Wherein, the gear computing module measures the side of the starting torque of the electric car according to the present load
Formula includes:
According to the present load amount and the road grade of the electric car, the starting of the electric car is calculated
Torque.
In preferred embodiments of the present invention, above-mentioned load detecting module includes load transducer, the load detecting mould
Block detects the present load amount of the electric car by the load transducer；
The slope detection module includes Slope Transducer, and the slope detection module is detected by the Slope Transducer
The electric car is presently in the gradient of road.
In preferred embodiments of the present invention, above-mentioned electric car further includes electric machine controller MCU, and the VCU further includes
Measuring opening module；
The Measuring opening module, is detected for the accelerator open degree current to the electric car；
The MCU, the motor for controlling the electric car according to the accelerator open degree detected rise what is be currently linked into
It is rotated under step gear, to realize that electric car is started to walk.
In preferred embodiments of the present invention, above-mentioned VCU further includes configuration module；
The configuration module, for being configured to the corresponding predetermined torque numberical range of each gear of the electric car.
In terms of existing technologies, electric car method for starting and electric car that preferred embodiments of the present invention provide
It has the advantages that the electric car method for starting starting is high-efficient, can reduce the vehicle starting acceleration time, improve
The driving experience of driver.Firstly, the method obtains the electronic vapour by detecting to electric car present load
The present load amount of vehicle；Then, the method measures rising for the electric car according to the present load of the electric car
Torque is walked, and the electric car corresponding starting gear in starting is obtained based on the starting torque；Finally, the method
Gearbox by controlling the electric car is linked into the starting gear, so that starting gear of the electric car to be linked into
It starts to walk, reduces vehicle starting and shift gears the acceleration time, improve vehicle starting efficiency and the driving experience of driver.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, present pre-ferred embodiments are cited below particularly,
And cooperate appended attached drawing, it is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of the claims in the present invention protection scope, for those of ordinary skill in the art, what is do not made the creative labor
Under the premise of, it can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is a kind of flow diagram for the electric car method for starting that preferred embodiments of the present invention provide.
Fig. 2 is the flow diagram for the sub-step that step S230 shown in Fig. 1 includes.
Fig. 3 is another flow diagram for the electric car method for starting that preferred embodiments of the present invention provide.
Fig. 4 is a kind of block diagram for the electric car that preferred embodiments of the present invention provide.
Fig. 5 is another block diagram for the electric car that preferred embodiments of the present invention provide.
Icon: 10- electric car；100-VCU；110- load detecting module；120- slope detection module；130- gear meter
Calculate module；200-TCU；140- Measuring opening module；300-MCU；150- configuration module；400- power supply unit.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the terms such as term "horizontal", "vertical", " pendency " are not offered as
It is required that component abswolute level or pendency, but can be slightly tilted.As "horizontal" only refers to its direction with respect to for "vertical"
It is more horizontal, it is not to indicate that the structure is had to fully horizontally, but can be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
Fig. 1 is please referred to, is a kind of flow diagram for the electric car method for starting that preferred embodiments of the present invention provide.
In embodiments of the present invention, the electric car method for starting is used to control the electronic vapour according to the current situation of electric car 10
Vehicle 10 is started to walk according to corresponding starting gear, to improve vehicle starting efficiency, is reduced vehicle starting and is shifted gears the acceleration time, improve
The driving experience of driver.The detailed process and step of electric car method for starting shown in FIG. 1 are explained in detail below
It states.
In embodiments of the present invention, the electric car method for starting the following steps are included:
Step S210 detects 10 present load of electric car, obtains the present load amount of electric car 10.
In the present embodiment, the method can be by the load transducer that is installed on electric car 10, to electric car
10 current load capacity measure, and obtain the present load amount of the electric car 10.Wherein the electric car 10 is current negative
Carrying capacity can be 0Kg, be also possible to 100Kg, can also be 2000Kg, numerical value by 10 present load of electric car object matter
Amount determines.
Step S230, the starting torque of electric car 10 is measured according to the present load of electric car 10, and is based on
Step torque obtains the corresponding starting gear in starting of electric car 10.
In the present embodiment, starting torque correspond to torque size in starting for characterizing electric car 10, numerical value and
The radius of wheel of tractive force needed for the currently starting of electric car 10 and electric car 10 is directly proportional, and wherein electric car 10 is worked as
Tractive force needed for preceding starting is directly proportional to the current gross mass of electric car 10, which is electronic
The sum of the present load amount of the quality of automobile 10 itself and the electric car 10.Electric car 10 can working as according to the electric car 10
The vehicle acceleration design parameter of preceding load capacity and the electric car 10, motor needs when the electric car 10 starting is calculated
The starting torque having.Wherein the starting torque of electric car 10 increases with the increase of the present load amount of the electric car 10
Greatly.
In the present embodiment, electric car 10 includes multiple gears, and each gear corresponds to different predetermined torque numerical value models
It encloses, the upper limit torque threshold that wherein high tap position corresponds to predetermined torque numberical range is less than low-grade location and corresponds to predetermined torque numberical range
Lower limit torque threshold.The method, can be corresponding pre- according to each gear after obtaining the current starting torque of electric car 10
If torque value range, selection and the current matched gear of starting torque of the electric car 10 exist as the electric car 10
Corresponding starting gear when starting.
It optionally, referring to figure 2., is the flow diagram for the sub-step that step S230 includes shown in Fig. 1.In this reality
Apply in example, in the step S230 based on starting torque obtain electric car 10 starting when corresponding starting gear the step of
Including sub-step S231 and sub-step S232:
Starting torque predetermined torque numberical range corresponding with each gear is compared by sub-step S231.
In the present embodiment, the method can by by the corresponding upper limit torque threshold of each predetermined torque numberical range and
The mode that lower limit torque threshold is compared with starting torque respectively, judges that the starting torque is located at each predetermined torque numberical range
Which of in predetermined torque numberical range.For example, if the corresponding predetermined torque numberical range of gear 5 be 100Nm~
180Nm, the corresponding predetermined torque numberical range of gear 6 is 50Nm~99Nm, and the starting torque being calculated is
When 60Nm, which shows as numerical value is fallen in the predetermined torque numberical range of 50Nm~99Nm.
Sub-step S232 determines the shelves when torque of starting to walk is located in the corresponding predetermined torque numberical range of a certain gear
Position is the current starting gear of electric car 10.
In the present embodiment, the method, will be pre- with this in the corresponding predetermined torque numberical range of determining starting torque
If the corresponding gear of the torque value range starting gear current as corresponding electric car 10.For example, if gear 5 is corresponding pre-
If torque value range is 100Nm~180Nm, the corresponding predetermined torque numberical range of gear 6 is 50Nm~99Nm,
When the starting torque being calculated is 60Nm, the starting gear obtained based on the starting torque is gear 6.
The gearbox of step S240, control electric car 10 are linked into starting gear, so that electric car 10 is risen with what is be linked into
Step gear is started to walk.
In the present embodiment, the method will be controlled when obtaining electric car 10 in starting after corresponding starting gear
The gearbox of the electric car 10 is linked into the starting gear, and is controlled the electric car 10 and risen with the starting gear
Step.Wherein, the step of starting gear for being linked into electric car 10 is started to walk include:
The accelerator open degree current to electric car 10 detects, and controls electric car according to the accelerator open degree detected
10 motor is rotated under the starting gear being currently linked into, to realize that electric car 10 is started to walk.
Referring once again to Fig. 1, in embodiments of the present invention, after step S210, before step S230, the method may be used also
To include:
Step S220, the gradient for being presently in road to electric car 10 detect, and obtain corresponding road grade.
In the present embodiment, road grade is the angle between the tangential direction and horizontal plane of corresponding road, the method
It can be surveyed by the Slope Transducer that is installed on electric car 10, the gradient for being presently in road to the electric car 10
Amount, obtains the corresponding road grade of the road.Wherein road grade can be 30 °, be also possible to 60 °, can also be 75 °,
Numerical value is presently in the inclined degree of position with respect to the horizontal plane by electric car 10 and determines.At this point, root in the step S230
The step of starting torque of electric car 10 is measured according to the present load of electric car 10 may include:
According to the present load amount and road grade of electric car 10, the starting torque of electric car 10 is calculated.
In the present embodiment, electric car 10 is presently in road grade and the current starting institute of the electric car 10 of road
The tractive force needed is associated, and wherein the extending direction of the road grade is identical as the vehicle acceleration direction of the electric car 10.
Tractive force needed for electric car 10 can calculate corresponding starting according to present load amount and the present road gradient, and led according to this
Corresponding starting torque is calculated in gravitation and radius of wheel.
Referring to figure 3., be preferred embodiments of the present invention electric car method for starting another flow diagram.In
In the embodiment of the present invention, before step S210, the electric car method for starting can also include:
Step S209 configures the corresponding predetermined torque numberical range of each gear of electric car 10.
In the present embodiment, the method passes through to the upper limited torque threshold in the corresponding predetermined torque numberical range of each gear
The mode that value and lower limit torque threshold are configured realizes the configuration to all predetermined torque numberical ranges.
It referring to figure 4., is a kind of block diagram for the electric car 10 that preferred embodiments of the present invention provide.In this hair
In bright embodiment, electric car 10 includes the control unit for vehicle VCU100 being electrically connected between each other and automatic gear-box control
Unit TCU200, wherein the VCU100, for controlling the operating status of electric car 10, the VCU100 includes electricity
Property connection load detecting module 110 and gear computing module 130.
The load detecting module 110 obtains electric car 10 for detecting to 10 present load of electric car
Present load amount.
In the present embodiment, load detecting module 110 includes load transducer, and load detecting module 110 is passed by load
The present load amount of sensor detection electric car 10.
The gear computing module 130, for measuring rising for electric car 10 according to the present load of electric car 10
Torque is walked, and the corresponding starting gear in starting of electric car 10 is obtained based on starting torque.
In the present embodiment, gear computing module 130 obtains electronic vapour by being electrically connected with load detecting module 110
The present load amount of vehicle 10, and the present load based on the electric car 10 measures corresponding starting torque.
In the present embodiment, electric car 10 includes multiple gears, and each gear corresponds to different predetermined torque numerical value models
It encloses, the upper limit torque threshold that wherein high tap position corresponds to predetermined torque numberical range is less than low-grade location and corresponds to predetermined torque numberical range
Lower limit torque threshold.Gear computing module 130 is based on starting torque and obtains the corresponding starting gear in starting of electric car 10
Position mode include:
Starting torque predetermined torque numberical range corresponding with each gear is compared；
When torque of starting to walk is located in the corresponding predetermined torque numberical range of a certain gear, determine that the gear is electric car
10 current starting gears.
The TCU200, the gearbox for controlling electric car 10 are linked into starting gear, so that electric car 10 is to hang
The starting gear entered is started to walk.
In the present embodiment, VCU100 corresponding starting gear when obtaining electric car 10 and starting to walk in the current situation
Afterwards, gear adjustment instruction will be sent to TCU200, so that the gearbox of TCU200 control electric car 10 is linked into corresponding
Gear is walked, wherein the gear adjustment instruction includes starting gear.
In embodiments of the present invention, the VCU100 can also include slope detection module 120.
The slope detection module 120, the gradient for being presently in road to electric car 10 detect, and obtain pair
The road grade answered.
In the present embodiment, slope detection module 120 includes Slope Transducer, and slope detection module 120 is passed by the gradient
Sensor detection electric car 10 is presently in the gradient of road.Wherein, the slope detection module 120 calculates mould with the gear
Block 130 is electrically connected, and is sent to the gear computing module 130 with the road grade that will test, and the gear calculates at this time
The mode for the starting torque that module 130 measures electric car 10 according to the present load of electric car 10 includes:
According to the present load amount and road grade of electric car 10, the starting torque of electric car 10 is calculated.
It referring to figure 5., is another block diagram for the electric car 10 that preferred embodiments of the present invention provide.At this
In inventive embodiments, electric car 10 can also include electric machine controller MCU300, and the VCU100 can also include that aperture is examined
Survey module 140.
The Measuring opening module 140, is detected for the accelerator open degree current to electric car 10.
The MCU300, for being risen according to the motor of the accelerator open degree control electric car 10 detected what is be currently linked into
It is rotated under step gear, to realize that electric car 10 is started to walk.
In the present embodiment, MCU300 obtains Measuring opening module 140 and detects by way of being electrically connected with VCU100
The current accelerator open degree of the electric car 10 arrived.
In embodiments of the present invention, the VCU100 can also include configuration module 150, the configuration module 150 and institute
The electric connection of gear computing module 130 is stated, for matching to the corresponding predetermined torque numberical range of each gear of electric car 10
It sets, and the gear computing module 130 will be sent to the corresponding predetermined torque numberical range of each gear postponed.
In embodiments of the present invention, electric car 10 can also include power supply unit 400, and said supply unit 400 is distinguished
It is electrically connected with VCU100, TCU200 and MCU300, for providing electric energy to VCU100, TCU200 and MCU300, to ensure electricity
Electrical automobile 10 can normally start to walk to travel.
In conclusion in the electric car method for starting and electric car that preferred embodiments of the present invention provide, it is described
The starting of electric car method for starting is high-efficient, can reduce the vehicle starting acceleration time, improves the driving experience of driver.It is first
First, the method obtains the present load amount of electric car by detecting to electric car present load；Then, described
Method is detected by the gradient for being presently in road to electric car, obtains corresponding road grade；Then, the method
The starting torque of electric car is obtained according to the present load amount and road slope calculation of electric car, and is turned round based on the starting
Square obtains electric car corresponding starting gear in starting；Finally, gearbox of the method by the control electric car
It is linked into the starting gear, so that electric car is started to walk with the starting gear being linked into, when reducing vehicle starting shift acceleration
Between, improve vehicle starting efficiency and the driving experience of driver.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of electric car method for starting, which is characterized in that the described method includes:
Electric car present load is detected, the present load amount of the electric car is obtained；
The starting torque of the electric car is measured according to the present load of the electric car, and is based on the starting torque
Obtain the electric car corresponding starting gear in starting；
The gearbox for controlling the electric car is linked into the starting gear, so that starting gear of the electric car to be linked into
It starts to walk；
The electric car includes multiple gears, and each gear corresponds to different predetermined torque numberical ranges, described based on described
Starting torque obtain the electric car starting when corresponding starting gear the step of, comprising:
Starting torque predetermined torque numberical range corresponding with each gear is compared；
When the starting torque is located in the corresponding predetermined torque numberical range of a certain gear, determine that the gear is described electronic
The current starting gear of automobile.
2. being obtained the method according to claim 1, wherein described detect electric car present load
After the step of present load amount of the electric car, the present load according to the electric car measures the electricity
Before the step of starting torque of electrical automobile, the method also includes:
The gradient for being presently in road to the electric car detects, and obtains corresponding road grade；
Wherein, the present load according to the electric car measures the step of starting torque of electric car packet
It includes:
According to the present load amount and the road grade of the electric car, the starting that the electric car is calculated is turned round
Square.
3. method according to claim 1 or 2, which is characterized in that the starting gear for being linked into the electric car
The step of position is started to walk, comprising:
The accelerator open degree current to the electric car detects, and controls the electronic vapour according to the accelerator open degree detected
The motor of vehicle is rotated under the starting gear being currently linked into, to realize that electric car is started to walk.
4. method according to claim 1 or 2, which is characterized in that electric car present load is detected described,
Before the step of obtaining the present load amount of the electric car, the method also includes:
The corresponding predetermined torque numberical range of each gear of electric car is configured.
5. a kind of electric car, which is characterized in that the electric car includes the control unit for vehicle VCU being electrically connected and automatic
Gear box control unit TCU, the VCU include the load detecting module being electrically connected and gear computing module；
The load detecting module obtains the current negative of the electric car for detecting to electric car present load
Carrying capacity；
The gear computing module for measuring the starting torque of the electric car according to the present load, and is based on
The starting torque obtains the electric car corresponding starting gear in starting；
The TCU, the gearbox for controlling the electric car is linked into the starting gear, so that the electric car is to hang
The starting gear entered is started to walk；
Wherein, the electric car includes multiple gears, and each gear corresponds to different predetermined torque numberical ranges；
The gear computing module is specifically used for carrying out starting torque predetermined torque numberical range corresponding with each gear
Compare；When the starting torque is located in the corresponding predetermined torque numberical range of a certain gear, determine that the gear is the electricity
The current starting gear of electrical automobile.
6. electric car according to claim 5, which is characterized in that the VCU further includes and the gear computing module
The slope detection module of electric connection；
The slope detection module, the gradient for being presently in road to the electric car detect, and obtain corresponding
Road grade；
Wherein, the gear computing module measures the mode packet of the starting torque of the electric car according to the present load
It includes:
According to the present load amount and the road grade of the electric car, the starting that the electric car is calculated is turned round
Square.
7. electric car according to claim 6, which is characterized in that the load detecting module includes load transducer,
The load detecting module detects the present load amount of the electric car by the load transducer；
The slope detection module includes Slope Transducer, and the slope detection module passes through described in Slope Transducer detection
Electric car is presently in the gradient of road.
8. electric car according to claim 6 or 7, which is characterized in that the electric car further includes electric machine controller
MCU, the VCU further include Measuring opening module；
The Measuring opening module, is detected for the accelerator open degree current to the electric car；
The MCU, for controlling the motor of the electric car in the starting gear being currently linked into according to the accelerator open degree detected
It is rotated under position, to realize that electric car is started to walk.
9. electric car according to claim 8, which is characterized in that the VCU further includes configuration module；
The configuration module, for being configured to the corresponding predetermined torque numberical range of each gear of the electric car.
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| JP5983857B2 (en) * | 2013-02-26 | 2016-09-06 | アイシン・エィ・ダブリュ株式会社 | Transmission control apparatus and control method |
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