CN108749644A - Pure electric automobile realizes the device and control method of the smooth starting under any road conditions - Google Patents
Pure electric automobile realizes the device and control method of the smooth starting under any road conditions Download PDFInfo
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- CN108749644A CN108749644A CN201810341089.6A CN201810341089A CN108749644A CN 108749644 A CN108749644 A CN 108749644A CN 201810341089 A CN201810341089 A CN 201810341089A CN 108749644 A CN108749644 A CN 108749644A
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- 238000001514 detection method Methods 0.000 claims abstract description 74
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- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 5
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- 241000018646 Pinus brutia Species 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000009193 crawling Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
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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
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
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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
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses the devices that pure electric automobile realizes the smooth starting under any road conditions, pure electric automobile includes motor, electric machine controller and entire car controller, pure electric automobile is additionally provided with the detection device with detection torque transmission shaft direction and locking or release transmission s function, and the pressure sensor for being driven rotational axis direction is paid and can be detected to detection device setting for locking the brake of transmission shaft；Brake is paid by clamping control mechanism locking or unclamping transmission shaft.The invention also discloses the control methods of the device.Using above-mentioned technical proposal, the phenomenon that occurring retreating or accelerating advance is overcome after starting vehicle, the startup of electric vehicle is set to become easier to control, improve the clean boot performance of vehicle, driving comfort sense when improving vehicle launch of the driver in different road conditions, gives one better driving experience of driver；It has the advantages of simple structure and easy realization.
Description
Technical field
The invention belongs to the technical fields of new-energy automobile, are related to the control technology of pure electric automobile.More specifically, this hair
It is bright to be related to a kind of device of pure electric automobile realization smooth starting under any road conditions.In addition, the invention further relates to applied to this
The control method of device.
Background technology
Since the 21th century, as the crisis of global warming, petroleum resources exhaustion more becomes serious, energy-saving low-carbon ring
The traffic of guarantor is increasingly becoming the common recognition of people, and corresponding is that new-energy automobile is highly valued, technical research and production
Industryization obtains important breakthrough.
New-energy automobile majority uses the technical solution of electric-machine directly-driven, and the resistance of entire dynamical system is relative to orthodox car
Want small；But due to increasing electrokinetic cell system, the dead weight of new-energy automobile is improved a lot compared to orthodox car.Due to
It is small from great and resistance, so as to cause electric vehicle when no current inputs, vehicle to slip by slope phenomenon apparent compared with orthodox car.And
Automobile is in specific occasion, such as parking lot, hill path, it may be necessary to the continually start-stop on ramp.
There is uncontrolled slip by slope in vehicle in order to prevent, it is necessary to a kind of ramp auxiliary (start and stop) system.Common manual
Fuel vehicle is kept off, from clutch, releasing of brake is stepped on to loosening the clutch, stepping on the throttle, centre completely loses dynamic for some time
Power may lead to car slipping；The ramp auxiliary system that certain medium and high quality fuel vehicles are equipped with, when the system is pressed and enables button, pine
Brake is opened, vehicle still can be braked 1-2 seconds, to the appearance of anti-stopping power vacancy time, prevent from slipping by slope；However electric vehicle is wanted
It configures ramp and assists (start and stop) system, need the complexity for greatly increasing machinery, improve cost.Certain outfit automatic gear-box
Vehicle also has the function of crawling, under conditions of vehicle is linked into advance or reverse gear shift, parking brake unclamp, neither steps on the gas nor steps on
Brake, vehicle can slow crawling；Automatic gear-box controller is controlled by clutch slipping or hydraulic torque converter degree of coupling
Control adjusts torque and differential, to realize crawling function.
And electric vehicle is not due to having clutch, it is therefore desirable to new control method.
In the prior art, vehicle crawling control only tables look-up to obtain crawling torque simply by speed, on level road
Crawling is functional, but fails to take into account hill gradient, will appear when ramp starts and slips by slope or acceleration from rest mistake
Greatly, comfort is deteriorated.
In some improved crawling control technologies, a kind of method is compensated to gradient torque, by the gradient, is made a reservation for
The information such as basic crawling torque, setting speed, by complicated algorithm, the output torque demand control motor from filter, this
Class algorithm is complicated, and principle is not also intuitive；Another kind of method is controlled using speed ring, by demarcating under different motor speeds
P, I rotating speed so that electric vehicle reaches the required torque of driving after unclamping parking brake in 0.3 second, and with ideal crawling speed
Degree traveling；Such methods need to demarcate PI parameters, and highly difficult trouble is not easy to realize.
In conclusion being difficult to realize steadily to open in allowing the start-up course of electric vehicle under any circumstance in the prior art
It is dynamic.
Invention content
The present invention provides a kind of device of pure electric automobile realization smooth starting under any road conditions, electronic the purpose is to make
The startup of automobile becomes easier to control.
To achieve the goals above, the technical solution that the present invention takes is：
The pure electric automobile of the present invention realizes that the device of the smooth starting under any road conditions, the pure electric automobile include
Motor, electric machine controller and entire car controller, the pure electric automobile are additionally provided with detection torque transmission shaft direction and lock
Detection device that is tight or unclamping transmission s function, detection device setting pay for locking the brake of transmission shaft and can be with
Detect the pressure sensor of transmission rotational axis direction；The brake is paid by clamping control mechanism locking or unclamping transmission
Axis.
A pressure sensing contact and two pressure sensitive components are arranged in the pressure sensor；Two pressure
Incude component along the transmission shaft tangential distribution, the pressure sensing contact setting two pressure sensitive components it
Between；The pressure sensitive component is fixed on detection device shell, and the pressure sensing contact is fixed on brake and pays.
The electric machine controller is equipped with inverter and inversion trigger；The electric machine controller is distinguished by inverter
It is connect with battery and motor, and the direct current of battery is changed into alternating current transmission to motor.
The inversion trigger is connect by signal circuit with the detection device, entire car controller inspection
The voltage signal of detection device, and then the direction of interpretation torque transmission shaft and size are measured, while big to the output torque of motor
It is small to be adjusted, control the driving torque of motor.
The entire car controller is connect with parking brake, automobile starting key, detection device respectively by signal line, is obtained
Parking brake signal, electric machine controller data, battery data, driver's desired signal are mixed the above-mentioned data received, so
The motor torque needed for driver is output data into electric machine controller afterwards.
The entire car controller is connect with electric machine controller by CAN protocol, realizes that entire car controller is controlled to motor
Device sends motor torque and signal and electric machine controller is required to send motor current torque signal to entire car controller.
The entire car controller is connect with detection device by two lines road, wherein one is detection device to vehicle control
Device processed sends the circuit of voltage signal；Another is that entire car controller sends transmission shaft locking to detection device and unclamps instruction letter
Number circuit.
In order to realize goal of the invention identical with above-mentioned technical proposal, the present invention also provides pure electric automobile realities
The control method of the device of smooth starting under present any road conditions, technical solution is that this approach includes the following steps：
Step 1: when entire car controller detects the actuating signal to pull the hand brake, locked transmission is transmitted to detection device immediately
The order of axis；
Step 2: car key gets to startup gear, shift signal varies to advance or reverse gear shift, parking brake pine by parking gear
It opens, electric machine controller controls motor output torque direction, and detection device still holds transmission shaft tightly；
Step 3: the pressure sensor in detection device, which detects, gives its electric signal transmission to vehicle control after transmission shaft pressure
Device processed after entire car controller is handled, obtains voltage data, and：
When torque is counterclockwise, voltage signal is negative, and when torque is clockwise, voltage signal is just；Voltage signal is negative
When entire car controller order electric machine controller increase torque output, voltage signal is timing, entire car controller order motor control
Device processed reduces the output of torque；When voltage is 0, i.e., the driving force obtained by electric vehicle is equal to suffered resistance；
Step 4: when the voltage that entire car controller receives detection device is 0, entire car controller calculates vehicle flat again
The startup motor torque of road traveling, is attached on original torque basis, obtains a new torque, input to motor control
After device, torque runs the effect for having reached a pure electric automobile gentle start to motor as required.
The calculating vehicle is set as motor torque of the vehicle in 6km/h in the startup motor torque of flat pavement running.
The detection device locks truck drive shaft when entire car controller receives parking brake release signal；Vehicle key
Spoon gets to startup gear, and shift signal varies to advance or reverse gear shift by parking gear, and parking brake unclamps, and full-vehicle control detection device is still
So hold transmission shaft tightly；Electric machine controller presses entire car controller output torque, while detecting two pressure electricity that detection device transmits
Signal, you can detect the detection direction of torque when automobile starting.
The present invention uses above-mentioned technical proposal, overcomes after starting vehicle the phenomenon that occurring retreating or accelerating advance, makes electricity
The startup of electrical automobile becomes easier to control, and improves the clean boot performance of vehicle, improves vehicle of the driver in different road conditions
Start when driving comfort sense, give one better driving experience of driver；It has the advantages of simple structure and easy realization.
Description of the drawings
Label in content and figure shown in attached drawing is briefly described as follows：
Fig. 1 is the structure of the detecting device schematic diagram in the present invention；
Fig. 2 is the structural schematic diagram of the electric machine controller in the present invention；
Fig. 3 is the module composition block diagram of entire car controller in the present invention；
Fig. 4 is the direct signal circulation figure of electric machine controller, entire car controller, detection device in above-mentioned figure；
Fig. 5 is the control method flow diagram of the present invention.
In figure label for：
1, detection device, 2, brake pay, 3, clamp control mechanism, 4, pressure sensor, 5, detection device shell, 6, shell
Fixing device, 7, pressure sensing contact, 8, pressure sensitive component, 9, battery, 10, electric machine controller, 11, motor, 12, inversion
Device, 13, inversion trigger, 14, entire car controller.
Specific implementation mode
Below against attached drawing, by the description of the embodiment, making to the specific implementation mode of the present invention further details of
Illustrate, to help those skilled in the art to have more complete, accurate and deep reason to the inventive concept of the present invention, technical solution
Solution.
The structure of the present invention as shown in Figure 1 to Figure 3 realizes the smooth starting under any road conditions for a kind of pure electric automobile
Device, the pure electric automobile include motor 11, electric machine controller 10 and entire car controller 14.
In order to overcome the problems, such as of the existing technology and defect, realizing makes the startup of electric vehicle become easier to control
Goal of the invention, the technical solution that the present invention takes are：
As shown in Figure 1, the pure electric automobile in the present invention is additionally provided with detection torque transmission shaft direction and locking or pine
The detection device 1 of transmission s function is opened, the detection device 1 is arranged the brake for locking transmission shaft and pays 2 and can examine
Measure the pressure sensor 4 of transmission rotational axis direction；The brake is paid 2 and is driven by clamping the locking of control mechanism 3 or unclamping
Axis.
The detection device 1 includes detection torque transmission shaft direction and locks or unclamp the function of transmission shaft.The detection
For device 1 when entire car controller 14 receives parking brake release signal, detection device 1 locks truck drive shaft, and car key is got to
Start gear, shift signal varies to advance or reverse gear shift by parking gear, and parking brake unclamps, and full-vehicle control detection device is still held tightly
Transmission shaft.Electric machine controller 10 presses the command signal output torque of entire car controller 14, while the detection detection of entire car controller 14
Two electric pressure signals that device 1 transmits, you can detect the torque direction of transmission shaft when automobile starting.
As shown in Figure 1, the concrete structure of detection device 1 is as follows：
A pressure sensing contact 7 and two pressure sensitive components 8 are arranged in the pressure sensor 4；Described two
Pressure sensitive component 8 is along the tangential distribution of the transmission shaft, and the pressure sensing contact 7 setting is in two pressure sensitives
Between component 8；The pressure sensitive component 8 is fixed on detection device shell 5, and the pressure sensing contact 7 is fixed on
Brake is paid on 2.
The detection device shell 5 is fixed on by shell fixing device 6 on the shell of motor transmission mechanism.
Entire car controller calculates motor output torque to electric machine controller, motor according to instructions such as gear, throttle, brakes
Controller converts the electric energy that power battery is stored to the electric energy needed for driving motor, to control the startup fortune of electric vehicle
The transport conditions such as row, advance and retreat speed, climbing dynamics, or electric vehicle brake is helped, and part brake energy is stored to dynamic
In power battery.It is one of key components and parts of electric vehicle.
As shown in Fig. 2, the concrete structure of electric machine controller 10 is as follows：
The electric machine controller 10 is equipped with inverter 12 and inversion trigger 13；The electric machine controller 10 is by inverse
Become device 12 to connect with battery 9 and motor 11 respectively, and the direct current of battery 9 is changed into alternating current transmission to motor 11.
The entire car controller 14 detects the voltage signal of detection device 1, and the inversion trigger 13 passes through signal
Circuit is connect with the detection device 1, and the electric machine controller 10 detects the voltage signal of detection device 1, and then sentences
Direction and the size of torque transmission shaft are read, while the output torque size of motor 11 is adjusted, controls the rotation of motor 11
Torque.
Electric machine controller 10 is to control motor according to the direction of setting, speed, angle, response time by active
The integrated circuit to work.
The entire car controller 14 be by electric machine controller 10 come control the startup of electric vehicle motor 11, operation, into
Move back, speed, stopping and electric vehicle other electronic devices kernel control chip, it is like the brain of electric vehicle, is
Important component on electric vehicle.Entire car controller 14 can collect parking brake signal, electric machine controller data, battery data, driving
Member's desired signal etc.；The data received are mixed, the motor needed for 10 driver of electric machine controller is then output to
Torque.
As shown in figure 3, the concrete structure of entire car controller 14 is as follows：
The entire car controller 14 exports motor torque when starting after understanding automobile road conditions.
Entire car controller 14 is connect with parking brake, automobile starting key, detection device 1 respectively by signal line, obtains hand
Brake signal, 10 data of electric machine controller, 9 data of battery, driver's desired signal, the above-mentioned data received are mixed,
Then the motor torque needed for driver is output data into electric machine controller 10.
The entire car controller 14, by being connect by CAN protocol, realizes entire car controller 14 with electric machine controller 10
Sending motor torque to electric machine controller 10 requires signal and electric machine controller 10 current to the transmission motor of entire car controller 14
Dtc signal.
The entire car controller 14 is connect with detection device 1 by two lines road, wherein one is detection device 1 to whole
Vehicle controller 14 sends the circuit of voltage signal；Another be entire car controller 14 to detection device 1 send transmission shaft locking with
Unclamp the circuit of command signal.
The motor 11 is 30 kilowatts of permanent magnet synchronous motors.Motor 11 passes to driving wheel by transmission shaft, by power.
Permanent magnet synchronous motor is the synchronous motor that synchronous rotary magnetic field is generated by permanent magnet excitation, and permanent magnet generates rotary magnetic as rotor
, threephase stator winding, by armature-reaction, incudes three-phase symmetrical electric current under rotating excitation field effect.
The circuit connecting relation of the motor 11 is as shown in Figure 2.
While entire car controller obtains automobile starting order by acquisition parking brake signal and key electrifying startup signal
Detection device is controlled by vehicle transmission axis clamping.The torque direction of detection device detection truck drive shaft obtains the current road of automobile
Condition information.The torque-demand that electric machine controller is inputted by entire car controller obtains electric current, the voltage needed for motor smooth starting
It exports to motor.
Electric machine controller 10, entire car controller 14, the circulation of 1 direct signal of detection device are as shown in Figure 4.Entire car controller
Motor torque when starting is exported after 14 deciphering automobile road conditions, as shown in Figure 5.
In order to realize goal of the invention identical with above-mentioned technical proposal, the present invention also provides pure electric automobile realities
The control method of the device of smooth starting under present any road conditions, technical solution is that this approach includes the following steps, i.e. vehicle
The control algolithm of controller 14, electric machine controller 10：
Step 1: when entire car controller 14 detects the actuating signal to pull the hand brake, detection device 1 is given to transmit locked pass immediately
The order of moving axis；
Step 2: car key gets to startup gear, shift signal varies to advance or reverse gear shift, parking brake pine by parking gear
It opens, electric machine controller 10 controls 11 output torque direction of motor, and detection device 1 still holds transmission shaft tightly；
Step 3: the pressure sensor 4 in detection device 1 detects its electric signal transmission after transmission shaft pressure to vehicle
Controller 14 after entire car controller 14 is handled, obtains voltage data, and：
When torque is counterclockwise, voltage signal is negative, and when torque is clockwise, voltage signal is just；Voltage signal is negative
When 14 order electric machine controller 10 of entire car controller increase the output of torque, voltage signal is timing, and entire car controller 14 is ordered
Electric machine controller 10 reduces the output of torque；When voltage is 0, i.e., the driving force obtained by electric vehicle is equal to suffered resistance；
It is described when torque it is counterclockwise, refer to that ramp glide direction is opposite with vehicle launch traffic direction；Conversely, referring to ramp cunning
Dynamic direction is identical as vehicle launch traffic direction；
Step 4: when the voltage that entire car controller 14 receives detection device 1 is 0, entire car controller 14 calculates whole again
Vehicle is attached in the startup motor torque of flat pavement running on original torque basis, is obtained a new torque, is inputed to electricity
After machine controller 10, torque runs the effect for having reached a pure electric automobile gentle start to motor 11 as required.
The calculating vehicle is set as motor torque of the vehicle in 6km/h in the startup motor torque of flat pavement running.
The detection device 1 locks truck drive shaft when entire car controller 14 receives parking brake release signal；Vehicle
Key gets to startup gear, and shift signal varies to advance or reverse gear shift by parking gear, and parking brake unclamps, and entire car controller 14 controls
Detection device 1 still holds transmission shaft tightly；Electric machine controller 10 presses 14 output torque of entire car controller, while detecting detection device 1
Two electric pressure signals transmitted, you can detect the detection direction of torque when automobile starting.
The above method makes the startup of electric vehicle become control to be easy, improve driving comfort sense and the automobile of driver
Clean boot performance, advantage are：
1, driving safety prevention appearance of the protection driver in different road conditions starts vehicle and occurs retreating or accelerate to advance
The phenomenon that；
2, one better driving experience of driver is given；
3, it has the advantages of simple structure and easy realization.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is used, or without changing
Other occasions are directly applied to by the design of the present invention and technical solution, within protection scope of the present invention.
Claims (10)
1. a kind of pure electric automobile realizes the device of the smooth starting under any road conditions, the pure electric automobile includes motor
(11), electric machine controller (10) and entire car controller (14), it is characterised in that：The pure electric automobile is additionally provided with detection
Torque transmission shaft direction and locking or the detection device (1) for unclamping transmission s function, the detection device (1) are arranged for locking
The brake of tight transmission shaft pays (2) and can detect the pressure sensor (4) of transmission rotational axis direction；The brake is paid
(2) lock or unclamp transmission shaft by clamping control mechanism (3).
2. pure electric automobile described in accordance with the claim 1 realizes the device of the smooth starting under any road conditions, it is characterised in that：
A pressure sensing contact (7) and two pressure sensitive components (8) are arranged in the pressure sensor (4)；Two pressures
Power incudes tangential distribution of the component (8) along the transmission shaft, and the pressure sensing contact (7) is arranged in two feelings of stress
It answers between component (8)；The pressure sensitive component (8) is fixed on detection device shell (5), the pressure sensing contact
(7) brake is fixed on to pay on (2).
3. pure electric automobile described in accordance with the claim 1 realizes the device of the smooth starting under any road conditions, it is characterised in that：
The electric machine controller (10) is equipped with inverter (12) and inversion trigger (13)；The electric machine controller (10) is by inverse
Become device (12) to connect with battery (9) and motor (11) respectively, and the direct current of battery (9) is changed into alternating current transmission to motor
(11)。
4. pure electric automobile described in accordance with the claim 3 realizes the device of the smooth starting under any road conditions, it is characterised in that：
The inversion trigger (13) is connect by signal circuit with the detection device (1), the entire car controller
(14) voltage signal of detection device (1), and then the direction of interpretation torque transmission shaft and size are detected, while to motor (11)
Output torque size be adjusted, control motor (11) driving torque.
5. pure electric automobile described in accordance with the claim 1 realizes the device of the smooth starting under any road conditions, it is characterised in that：
The entire car controller (14) is connect with parking brake, automobile starting key, detection device (1) respectively by signal line, is obtained
Parking brake signal, electric machine controller (10) data, battery data, driver's desired signal, the above-mentioned data received are mixed
It closes, the motor torque output data needed for driver is then sent to electric machine controller (10).
6. pure electric automobile realizes the device of the smooth starting under any road conditions according to claim 5, it is characterised in that：
The entire car controller (14) is connect with electric machine controller (10) by CAN protocol, realizes entire car controller (14) to motor
Controller (10) sends motor torque and requires signal and electric machine controller (10) current to entire car controller (14) transmission motor
Dtc signal.
7. pure electric automobile realizes the device of the smooth starting under any road conditions according to claim 5, it is characterised in that：
The entire car controller (14) is connect with detection device (1) by two lines road, wherein one is detection device (1) to vehicle
Controller (14) sends the circuit of voltage signal；Another is that entire car controller (14) sends transmission shaft lock to detection device (1)
Tightly with unclamp command signal circuit.
8. realizing the device of the smooth starting under any road conditions according to the pure electric automobile described in any one of claim 1 to 7
Control method, it is characterised in that this approach includes the following steps：
Step 1: when entire car controller (14) detects the actuating signal to pull the hand brake, detection device (1) is given to transmit locked pass immediately
The order of moving axis；
Step 2: car key gets to startup gear, shift signal varies to advance or reverse gear shift by parking gear, and parking brake unclamps,
Electric machine controller (10) controls motor (11) output torque direction, and detection device (1) still holds transmission shaft tightly；
Step 3: the pressure sensor (4) in detection device (1) detects its electric signal transmission after transmission shaft pressure to vehicle
Controller (14) obtains voltage data after entire car controller (14) is handled, and：
When torque is counterclockwise, voltage signal is negative, and when torque is clockwise, voltage signal is just；Voltage signal is whole when being negative
Vehicle controller (14) order electric machine controller (10) increases the output of torque；Voltage signal is timing, entire car controller (14) life
Electric machine controller (10) is enabled to reduce the output of torque；When voltage is 0, i.e., the driving force obtained by electric vehicle is equal to suffered resistance
Power；
Step 4: when the voltage that entire car controller (14) receives detection device (1) is 0, entire car controller (14) calculates again
Vehicle is attached in the startup motor torque of flat pavement running on original torque basis, is obtained a new torque, is inputed to
After electric machine controller (10), torque runs the effect for having reached a pure electric automobile gentle start to motor (11) as required.
9. pure electric automobile realizes the control method of the device of smooth starting under any road conditions according to claim 8,
It is characterized in that：The calculating vehicle is set as motor force of the vehicle in 6km/h in the startup motor torque of flat pavement running
Square.
10. realizing the device of the smooth starting under any road conditions according to the pure electric automobile described in any one of claim 1 to 7
Control method, it is characterised in that：The detection device (1) when entire car controller (14) receives parking brake release signal,
Lock truck drive shaft；Car key gets to startup gear, and shift signal varies to advance or reverse gear shift, parking brake pine by parking gear
It opens, entire car controller (14) full-vehicle control detection device (1) still holds transmission shaft tightly；Electric machine controller (10) presses entire car controller
(14) output torque, while detecting two electric pressure signals that detection device (1) transmits, you can detect torque when automobile starting
Detection direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810341089.6A CN108749644B (en) | 2018-04-17 | 2018-04-17 | Device for realizing stable starting of pure electric vehicle under any road condition and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810341089.6A CN108749644B (en) | 2018-04-17 | 2018-04-17 | Device for realizing stable starting of pure electric vehicle under any road condition and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108749644A true CN108749644A (en) | 2018-11-06 |
| CN108749644B CN108749644B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810341089.6A Active CN108749644B (en) | 2018-04-17 | 2018-04-17 | Device for realizing stable starting of pure electric vehicle under any road condition and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113547933A (en) * | 2021-08-12 | 2021-10-26 | 珠海格力电器股份有限公司 | Slope-stopping control method and device for vehicle, storage medium and motor controller |
Citations (11)
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| CN113547933B (en) * | 2021-08-12 | 2023-08-29 | 珠海格力电器股份有限公司 | Vehicle hill-holding control method, device, storage medium and motor controller |
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| CN108749644B (en) | 2024-04-09 |
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