CN109515146A - A kind of pure electric coach and its dynamical system - Google Patents
A kind of pure electric coach and its dynamical system Download PDFInfo
- Publication number
- CN109515146A CN109515146A CN201710842867.5A CN201710842867A CN109515146A CN 109515146 A CN109515146 A CN 109515146A CN 201710842867 A CN201710842867 A CN 201710842867A CN 109515146 A CN109515146 A CN 109515146A
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- CN
- China
- Prior art keywords
- driving motor
- clutch
- pure electric
- postposition
- preposition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
Abstract
The present invention relates to electrical vehicular power control field, especially a kind of pure electric coach and its dynamical system.Wherein pure electric coach includes dynamical system, and it further includes preposition clutch and postposition clutch, the preposition clutch of the first driving motor transmission connection which, which includes the first driving motor, the second driving motor, transmission shaft, drive axle and wheel,；The front transfer of second driving motor connects preposition clutch, and the rear portion transmission connection postposition clutch, postposition clutch drive vehicle wheel rotation by transmission axis connection drive axle.Under corresponding control, various modes are provided to cope with corresponding operating condition, including drive mode, braking mode and sliding mode, to meet the configuration of dynamical system under more multi-state, realize under various working that two motors can be in high efficiency range operation, vehicle energy consumption is reduced, the service performance of pure electric coach is improved, solving the problems, such as to make rational planning under more multi-state controls driving motor transmission power.
Description
Technical field
The present invention relates to electric motor coach dynamic Control field, especially a kind of pure electric coach and its dynamical system.
Background technique
With soaring and city bus ownership the saturation of pure electric coach quantity, pure electric coach market is to city
Township's sprawling, more and more pure electric coach will have city and town and country operating condition road operation concurrently at the same time, therefore, single driving electricity
The vehicle of machine driving is driven the limitation of electric system high efficiency range, and higher work cannot be kept to imitate under work as a hired labourer condition for the national games
Rate, vehicle energy consumption is higher, meanwhile, under driving motor torque and the biggish operating condition of power demand, by single driving motor power
It is also not satisfactory with the dynamic property of the limitation of torque, vehicle.
To solve the above-mentioned problems, China Patent Publication No. discloses for the patent document of CN206067539U a kind of pure
Power assembly of electric automobile, as shown in Figure 1, it include the first driving motor, the second driving motor, freewheel clutch, transmission shaft,
Drive axle and driving wheel, the first driving motor and the second driving motor therein are connected to the both ends of freewheel clutch, the
Two driving motors connect driving wheel by transmission axis connection drive axle, drive axle.By the way that the first driving motor and second are driven
The cooperation of motor is realized that pure electric automobile accelerates or the non-firm power of climbing is respectively configured with level road cruising power, is divided into
4 operating modes, respectively low speed cruise regime, low speed are climbed mode, high speed cruise regime, temporary parking mode, so that
Vehicle revolving speed, torque obtain proportion optimizing, improve the service performance of pure electric vehicle.
But it in order to adapt to the full working scope under the operation of town and country, does not mention and how to solve in above patent document, such as in low speed
The problems such as dynamical system of how making rational planning under low torque, vehicle high-speed or low speed slide, vehicle high-speed or low speed damped condition.
It cannot be guaranteed that two identical driving motors are all runed in high efficiency range under full working scope, therefore the energy consumption of double drive motor can also
Enough continue to improve, the service performance of pure electric vehicle is to be improved.
Summary of the invention
The object of the present invention is to provide a kind of pure electric coach and its dynamical systems, rationally advise under more multi-state to solve
The problem of drawing control driving motor output power.
To achieve the above object, a kind of power system for pure electric bus provided by the invention includes: the first driving motor,
Two driving motors, transmission shaft and drive axle, further include preposition clutch and postposition clutch, and first driving motor passes through institute
The input terminal that preposition clutch connects second driving motor is stated, the output end of second driving motor connects the postposition
Clutch, the postposition clutch pass through drive axle described in the transmission axis connection.
Be as a kind of beneficial effect of power system for pure electric bus provided by the invention, by preposition clutch and after
The cooperation of clutch is set, the first driving motor is controlled or the second driving motor carries out power output, it is dynamic to have obtained pure electric coach
Power output mode realizes above-mentioned two motor under various working to meet the configuration of dynamical system under more multi-state
Vehicle energy consumption can be reduced in high efficiency range operation, solve make rational planning under more multi-state control driving motor output
The problem of power.
As a kind of improvement of power system for pure electric bus provided by the invention, the peak value of first driving motor is turned round
Square is lower than the peak torque of second driving motor, and the rated speed of first driving motor is higher than the second driving electricity
The rated speed of machine.
It further include control device as a kind of further improvement of power system for pure electric bus provided by the invention, institute
It states control device control and connects the preposition clutch, the postposition clutch, first driving motor and second drive
Dynamic motor.
As a kind of power system for pure electric bus provided by the invention, it is preferred that the preposition clutch and described
Postposition clutch is controlled freewheel clutch.
As a kind of power system for pure electric bus provided by the invention, it is preferred that the control device is vehicle control
Device processed.
A kind of pure electric coach, including dynamical system, the dynamical system include the first driving motor, preposition clutch,
Postposition clutch, the second driving motor, transmission shaft and drive axle, first driving motor pass through the preposition clutch connection
The output end of the input terminal of second driving motor, second driving motor connects the postposition clutch, the postposition
Clutch passes through drive axle described in the transmission axis connection.Beneficial effect is to improve the service performance of pure electric coach.
As a kind of improvement of pure electric coach provided by the invention, the peak torque of first driving motor is lower than institute
The peak torque of the second driving motor is stated, the rated speed of first driving motor is higher than the specified of second driving motor
Revolving speed.
As a kind of further improvement of pure electric coach provided by the invention, the dynamical system further includes control dress
It sets, control device control connects the preposition clutch, the postposition clutch, first driving motor and described the
Two driving motors.
As a kind of pure electric coach provided by the invention, it is preferred that the preposition clutch and the postposition clutch
Device is controlled freewheel clutch.
As a kind of pure electric coach provided by the invention, it is preferred that the control device is entire car controller.
Detailed description of the invention
Fig. 1 is a kind of system construction drawing of pure electric automobile power assembly of Publication No. CN206067539U；
Fig. 2 is a kind of structural schematic diagram of power system for pure electric bus.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawing.
The present invention provides a kind of pure electric coach, including a kind of power system for pure electric bus, as shown in Fig. 2, including
First driving motor 1, preposition clutch 2, the second driving motor 3, postposition clutch 4, transmission shaft 5, drive axle 6, wheel 7 and control
Device processed, preferably control device are entire car controller 9, further include energy storage device 8.
First driving motor 1 connects the input terminal of the second driving motor 3 by preposition clutch 2, the second driving motor
Output end connects transmission shaft 5 by postposition clutch 4；When postposition clutch 4 combines, the power of driving motor passes through transmission shaft
5 and drive axle 6 be transmitted to wheel 7.
Wherein, preposition clutch 2 and postposition clutch 4 can be controlled freewheel clutch, and freewheel clutch has benefit
With the variation of active, the velocity variations of driven shakiness or direction of rotation, the function of automatic clutch is completed.
In addition, energy storage device 8 is powered to the first driving motor 1 and the second driving motor 3, meanwhile, when the first driving motor 1
Or second driving motor 3 can be dragged by anti-in the case of brake, motor is able to carry out power generation by counter drag, i.e., in motor quilt
It is counter to charge to energy storage device 8 when dragging.
First driving motor 1 of the control connection of entire car controller 9, the second driving motor 3, preposition clutch 2 and postposition clutch
Device 4, wherein entire car controller 9 controls the power output size of motor and controls the separation and combination of clutch.
In order to cope with power demand under different operating conditions, guarantee in dynamical system that motor can work in high efficiency range, for
Power system for pure electric bus provided by the invention, also corresponding to have control method, it is specified turn high for taking the first driving motor 1
Fast driving motor, peak torque T1, the second driving motor 3 are low rated speed driving motor, peak torque T2, T1 < T2.
It is V1 that the second driving motor 3, which is arranged, to be switched to the rotary speed threshold value of the first driving motor 1, if vehicle is in a certain operation work
The torque of driving motor is T, revolving speed V when condition.
Under above-mentioned precondition, steps flow chart is as follows:
1. judging whether V is greater than V1.
2. judging whether T is greater than whether T1 and T is greater than T2.
3. if control postposition clutch combines V < V1, T < T2, control preposition clutch separation, control the second driving motor
Work；
If V<V1, T>T2 controls preposition clutch and postposition clutch while combining, and controls the second driving motor and the
One driving motor works together；
If V>V1, T<T1 controls preposition clutch and postposition clutch while combining, and the second driving motor of control is empty
Turn, control the first driving motor work；
If V > V1, T > T1 controls preposition clutch and postposition clutch while combining, and controls the second driving motor and the
One driving motor works together.
4. judging whether to step on the throttle pedal and whether stepping on brake pedal.
For example, judging whether that someone steps on the gas or stops by obtaining gas pedal or brake pedal signal generation device
Vehicle determines vehicle-state with this, when do not step on the throttle pedal and brake pedal when, vehicle sliding；When the brake pedal is applied, vehicle
Braking.
5. if control postposition clutch combines vehicle low speed slide and braking, control preposition clutch separation；If high ski-running
Row controls postposition clutch separation；If high speed is braked, control preposition clutch and postposition clutch while all combining, controls the
The idle running of two driving motors.
Under the control of corresponding method, power system for pure electric bus provided by the invention according to actual needs, is realized whole
Vehicle is run according to the operating condition under following various modes:
(1) slow-speed of revolution low torque demand operating condition: as V < V1 and T < T2, preposition clutch 2 is separated, postposition clutch 4
In conjunction with the work of the second driving motor 3 drives wheel 7 to rotate by transmission shaft 5 and drive axle 6.
For example, speed is lower and the lesser urban traffic situation of road gradient, the second driving motor are sufficient under the road conditions
Vehicle power demand.
(2) slow-speed of revolution high torque demand operating condition: as V < V1 and T > T2, preposition clutch 2 and postposition clutch 4 are simultaneously
In conjunction with the first driving motor 1 and the second driving motor 3 connect and drive wheel 7 to rotate jointly.
For example, the road conditions of low speed climbing, the first driving motor 1 are worked at the same time with the second driving motor 3, torque superposition is full
The power demand of high torque under the foot road conditions.
(3) high rpm low torque demand operating condition: as V > V1 and T < T1, preposition clutch 2 and postposition clutch 4 are simultaneously
In conjunction with the second driving motor 3 idle running, the first driving motor 1 drives wheel 7 to rotate.
For example, vehicle driving is in high-speed working condition, power output is individually carried out by the first driving motor 1, at this time road conditions compared with
Good, the intervention of the second driving motor can not obtain higher power output effect, also will cause the consumption of electric energy.
(4) high revolving speed high torque demand operating condition: as V > V1 and T > T1, preposition clutch 2 and postposition clutch 4 are simultaneously
In conjunction with the first driving motor 1 and the second driving motor 3 connect and drive wheel 7 to rotate jointly.
For example, the first driving motor 1 and the second driving motor 3 work at the same time when high speed climbing, high-speed passing, meet high
The demand of power and high torque.
(5) under low speed slide and the operating condition of braking: preposition clutch 2 separates, and postposition clutch 4 combines, the second driving electricity
Machine 3 is dragged by counter, for charging to energy storage device 8.
(6) under the operating condition of high speed slide: postposition clutch 4 separates, and vehicle sliding resistance is only vehicle self resistance.
(7) under the operating condition of high speed braking: preposition clutch 2 and postposition clutch 4 are in combination with the second driving motor 3 is empty
Turn, high rated speed driving motor 1 is dragged by counter, for charging to energy storage device 8.
According to above-mentioned power system for pure electric bus, the first driving motor 1 is more biased towards to be driven in high-power output, second
Dynamic motor 3 is more biased towards the output in large torque.
Specific embodiment of the present invention is presented above, but the present invention is not limited to described embodiment.
Under the thinking that the present invention provides, to the skill in above-described embodiment by the way of being readily apparent that those skilled in the art
Art means are converted, are replaced, are modified, and play the role of with the present invention in relevant art means it is essentially identical, realize
Goal of the invention it is also essentially identical, the technical solution formed in this way is to be finely adjusted to be formed to above-described embodiment, this technology
Scheme is still fallen in protection scope of the present invention.
Claims (10)
1. a kind of power system for pure electric bus, which is characterized in that including the first driving motor, the second driving motor, transmission shaft
And drive axle, it further include preposition clutch and postposition clutch, first driving motor passes through the preposition clutch connection
The output end of the input terminal of second driving motor, second driving motor connects the postposition clutch, the postposition
Clutch passes through drive axle described in the transmission axis connection.
2. power system for pure electric bus according to claim 1, which is characterized in that the peak value of first driving motor
Torque is lower than the peak torque of second driving motor, and the rated speed of first driving motor is higher than second driving
The rated speed of motor.
3. power system for pure electric bus according to claim 1, which is characterized in that it further include control device, the control
Device control processed connects the preposition clutch, the postposition clutch, first driving motor and the second driving electricity
Machine.
4. power system for pure electric bus according to claim 1 or 3, which is characterized in that the preposition clutch and institute
Stating postposition clutch is controlled freewheel clutch.
5. power system for pure electric bus according to claim 3, which is characterized in that the control device is full-vehicle control
Device.
6. a kind of pure electric coach, including dynamical system, which is characterized in that the dynamical system includes the first driving motor, preceding
Clutch, postposition clutch, the second driving motor, transmission shaft and drive axle are set, first driving motor passes through described preposition
Clutch connects the input terminal of second driving motor, and the output end of second driving motor connects the postposition clutch
Device, the postposition clutch pass through drive axle described in the transmission axis connection.
7. pure electric coach according to claim 6, which is characterized in that the peak torque of first driving motor is lower than
The peak torque of second driving motor, the rated speed of first driving motor are higher than the volume of second driving motor
Determine revolving speed.
8. pure electric coach according to claim 6, which is characterized in that the dynamical system further includes control device, institute
It states control device control and connects the preposition clutch, the postposition clutch, first driving motor and second drive
Dynamic motor.
9. the pure electric coach according to claim 6 or 8, which is characterized in that the preposition clutch and the postposition from
Clutch is controlled freewheel clutch.
10. pure electric coach according to claim 8, which is characterized in that the control device is entire car controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710842867.5A CN109515146A (en) | 2017-09-18 | 2017-09-18 | A kind of pure electric coach and its dynamical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710842867.5A CN109515146A (en) | 2017-09-18 | 2017-09-18 | A kind of pure electric coach and its dynamical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109515146A true CN109515146A (en) | 2019-03-26 |
Family
ID=65768060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710842867.5A Pending CN109515146A (en) | 2017-09-18 | 2017-09-18 | A kind of pure electric coach and its dynamical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109515146A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201423907Y (en) * | 2009-05-19 | 2010-03-17 | 万向电动汽车有限公司 | Pure electric automobile power assembly system |
| US20110120788A1 (en) * | 2006-12-25 | 2011-05-26 | Byd Company Limited | Hybrid power output system |
| CN105034782A (en) * | 2015-09-10 | 2015-11-11 | 福建万润新能源科技有限公司 | Electric automobile multi-mode power system |
| CN105128700A (en) * | 2015-09-10 | 2015-12-09 | 福建工程学院 | Double-power system of electric vehicle and control method |
| CN204845595U (en) * | 2015-09-01 | 2015-12-09 | 福建万润新能源科技有限公司 | Two motor dynamic coupling devices of electric automobile |
| CN205059313U (en) * | 2015-10-30 | 2016-03-02 | 福建万润新能源科技有限公司 | Bi -motor multi -mode driving system of adjustable speed |
| CN205970802U (en) * | 2016-08-16 | 2017-02-22 | 宝沃汽车（中国）有限公司 | Electric automobile's driving system and have its electric automobile |
| CN207433245U (en) * | 2017-09-18 | 2018-06-01 | 郑州宇通客车股份有限公司 | Pure electric coach and its dynamical system |
-
2017
- 2017-09-18 CN CN201710842867.5A patent/CN109515146A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110120788A1 (en) * | 2006-12-25 | 2011-05-26 | Byd Company Limited | Hybrid power output system |
| CN201423907Y (en) * | 2009-05-19 | 2010-03-17 | 万向电动汽车有限公司 | Pure electric automobile power assembly system |
| CN204845595U (en) * | 2015-09-01 | 2015-12-09 | 福建万润新能源科技有限公司 | Two motor dynamic coupling devices of electric automobile |
| CN105034782A (en) * | 2015-09-10 | 2015-11-11 | 福建万润新能源科技有限公司 | Electric automobile multi-mode power system |
| CN105128700A (en) * | 2015-09-10 | 2015-12-09 | 福建工程学院 | Double-power system of electric vehicle and control method |
| CN205059313U (en) * | 2015-10-30 | 2016-03-02 | 福建万润新能源科技有限公司 | Bi -motor multi -mode driving system of adjustable speed |
| CN205970802U (en) * | 2016-08-16 | 2017-02-22 | 宝沃汽车（中国）有限公司 | Electric automobile's driving system and have its electric automobile |
| CN207433245U (en) * | 2017-09-18 | 2018-06-01 | 郑州宇通客车股份有限公司 | Pure electric coach and its dynamical system |
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