CN104589997A - Surpass relay electrically driven vehicle and driving systems thereof - Google Patents
Surpass relay electrically driven vehicle and driving systems thereof Download PDFInfo
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- CN104589997A CN104589997A CN201510030773.9A CN201510030773A CN104589997A CN 104589997 A CN104589997 A CN 104589997A CN 201510030773 A CN201510030773 A CN 201510030773A CN 104589997 A CN104589997 A CN 104589997A
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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
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Abstract
The invention discloses a surpass relay electrically driven vehicle and a driving systems of the vehicle, wherein each driving system relays to drive in the speed high efficiency zone; the driving systems not only can drive independently but also can drive jointly. The surpass relay electrically driven vehicle has the advantages of complementary characteristics and high efficiency relay running; each drive system can relay to work according to vehicle speed and load, the energy consumption and emission are reduced by mainly improving the average driving efficiency of driving systems and vehicle in the speed high efficiency zone; compared with the central driven pure electric vehicle, the purpose of reducing the design requirement of a motor based on the realizing of high efficiency driving is achieved; compared with an internal combustion engine vehicle in the prior art, the uneconomical working conditions at idle speed and low speed of the engine are avoided by electric driving and fast start and stop at low speed, and the working condition of the engine is adjusted further to achieve the optimal economical running area by the driving power assisting of the motor to the engine and the rest power generation, and therefore the efficiency of the engine driving system is optimized furthest.
Description
Technical field
The invention belongs to Automobile drive field, be specifically related to a kind of drive system surmounting relay electric drive automobile and this automobile with characteristic complementation, efficient relay operation.
Background technology
Existing conventional drive system all can provide driving usually in whole vehicle speed range, because the parameter of conventional drive system is different, therefore respectively overlap conventional drive system and all there is its corresponding speed of a motor vehicle high efficiency range, namely in certain vehicle speed range, the drive efficiency of this cover conventional drive system is than high in other vehicle speed ranges, that is there is certain vehicle speed range, the drive efficiency of this cover conventional drive system is minimum.Under normal circumstances, the drive efficiency of conventional drive system is lower when low speed and load, and speed and load growth are to a timing, and drive efficiency is the highest.For the pure electric automobile of existing center driven and traditional combustion engine automobile.
The pure electric automobile of existing center driven, drive in whole vehicle speed range with the power drive system that power is enough large mostly, utilize the high rotating speed stepless speed governing characteristic of motor to realize speed change and the driving of drive system, make system architecture simple, relatively reliable, but its drive performance to motor requires higher, both required that motor had high rotating speed, there is large torque again, and the high efficiency drive that can realize in a big way, so make the designing requirement of motor higher, the volume and weight of motor becomes large.
Existing traditional combustion engine automobile, when High Load Rate travels, the drive efficiency of drive system is higher, the problem that engine load rate is low when low speed driving, system effectiveness is low, auto emission is poor.
Summary of the invention
The object of the invention is to: overcome prior art defect, a kind of drive system surmounting relay electric drive automobile and this automobile is provided, this drive system surmounting relay electric drive automobile can select mode of operation according to the speed of a motor vehicle and load, drive system can by mainly working in speed of a motor vehicle high efficiency range (speed of a motor vehicle that namely drive efficiency is higher and between loading zone), thus improve the average driving efficiency of drive system and automobile, reduce the consumption of the energy, emissions reduction.
Now compare with regard to the shortcoming in technical scheme of the present invention and background technology:
Compared with the pure electric automobile of center driven, original single drive motor is become two independently drive motor parallel drives by a technical scheme of the present invention, two propulsions source are all electric drives, by the powershift control and optimize drive motor efficiency of two drive motor, can high efficiency drive be realized, reduce the designing requirement to motor simultaneously.
Compared with traditional combustion engine automobile, a technical scheme of the present invention introduces motor on traditional engine drive basis, engine drive efficiency is improved by reducing engine power thus increasing engine load rate, and idling and the uneconomical operating mode of low speed of driving engine can be evaded by motorized motions during low speed and quick start-stop, and motor auxiliary and surplus power generating to the driving power of driving engine, regulate the operating mode of driving engine to optimal economic operation area further, thus realize maximized engine drive system efficiency optimization.
The present invention proposes the theory of one " speed surmounts relay ", adopt two (or more) drive system, only use idling slow speed system when low speed Smaller load travels, mainly use High Speed System when high speed.Simultaneously when demand torque is larger, also can jointly drive.
Concrete technical scheme of the present invention is as follows:
A kind of power drive system, comprise motor, electric machine controller, battery, battery management system, electric motor clutch and speed reduction gearing, described electric motor clutch is controllable clutch or overriding clutch, described speed reduction gearing is gear cluster, chain or cog belt, described motor is connected with battery through electric machine controller, described battery management system is connected with battery, the physical parameter of described battery management system Real-Time Monitoring battery and balanced management battery discharge procedure, described motor, electric motor clutch and speed reduction gearing are mechanically connected successively, it is in parallel that described motor passes through electric motor clutch and speed reduction gearing and other drive systems.
One surmounts relay electric drive automobile, and comprise the drive system that whole-control system, transmission device and at least two covers are in parallel, wherein at least a set of is described power drive system, drive system in parallel is in addition engine drive system, described engine drive system comprises driving engine, engine controller, power-transfer clutch, change-speed box and gearbox control, described engine controller is connected with engine wiring harness, described engine controller has the function monitored continuously and control normal working of engine, described gearbox control is connected with change-speed box wire harness, described driving engine, power-transfer clutch and change-speed box are mechanically connected successively, described speed reduction gearing and change-speed box or transmission device are mechanically connected, described change-speed box and transmission device are mechanically connected, described transmission device drives the drive wheel of vehicle, band motor vehicle is advanced, described whole-control system is connected with electric machine controller, engine controller and gearbox control wire harness respectively.Preferably, described entire car controller controls the work of each drive system respectively by electric machine controller, engine controller and gearbox control.Preferably, by each drive system of vehicle control unit controls, each drive system can work respectively also can co-operation, both can use in the relay of the speed of a motor vehicle of its correspondence efficient district, and also tunable uses, and when needs reinforcement, each drive system can drive jointly.Preferably, described entire car controller runs by motor controller controls motor, thus suitably generating supplements battery.
As the preferred mode of one, the quantity of described drive system is two covers, described drive system is described power drive system, described drive system is respectively low speed electric drive trains and unifies High-speed Electric drive system, described low speed power drive system and automobile low-speed region match, and the efficient district of its speed of a motor vehicle is automobile low-speed region; Described High-speed Electric drive system and automobile high-speed region match, and the efficient district of its speed of a motor vehicle is automobile high-speed region.Preferably, described low speed power drive system is mainly used in assistive drive when the large torque actuated such as starting, acceleration, climbing needs, and its motor is dynamic property helper motor, and the parameter matching of its motor mainly considers tractive performance; Described High-speed Electric drive system is mainly used in the driving under conventional operating mode, and its motor is economy motor, works under the conventional operating mode of the main consideration of its parameter of electric machine coupling between its efficacious workaround; When needs reinforcement, described low speed electric drive trains described High-speed Electric drive system of unifying can drive jointly.
As the preferred mode of one, the quantity of described drive system is two covers, and wherein a set of is described power drive system, and a set of is in addition described engine drive system; Described power drive system is idling slow speed system, and during low speed, described power drive system is main driving, ensures tractive performance when starting and low speed, and has certain pure motor driving mileage; Described engine drive system is High Speed System, and during high speed, described engine drive system is main driving, ensures continual mileage and speed index.
As the preferred mode of one, described change-speed box has two input ends, and one of them input end is connected with driving engine, and another input end is connected with speed reduction gearing, described driving engine and motor drive the drive wheel of automobile respectively by transmission output and transmission device, pull moving vehicle; Described driving engine and motor coaxle are arranged or are arranged in parallel; When described driving engine and motor are arranged in parallel, described motor is connected by intermediate gearing with between change-speed box.Arranged by this kind, the assembly width of drive system can be saved, be convenient to be arranged on automotive interior.Preferably, described intermediate gearing is gear cluster, chain or cog belt.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) advantage that the present invention has characteristic complementation, efficient relay runs, each drive system can according to the speed of a motor vehicle and load relay work, by mainly working in speed of a motor vehicle high efficiency range (speed of a motor vehicle that namely drive efficiency is higher and between loading zone), thus improve the average driving efficiency of drive system and automobile, reduce the consumption of the energy, emissions reduction;
(2) the present invention is compared with the pure electric automobile of center driven, original single drive motor is become two independently drive motor parallel drives by a technical scheme of the present invention, two propulsions source are all electric drives, by the powershift control and optimize drive motor efficiency of two drive motor, on the basis realizing high efficiency drive, the designing requirement to motor can be reduced simultaneously;
(3) the present invention is compared with traditional combustion engine automobile, a technical scheme of the present invention introduces motor on traditional engine drive basis, engine drive efficiency is improved by reducing engine power thus increasing engine load rate, and idling and the uneconomical operating mode of low speed of driving engine can be evaded by motorized motions during low speed and quick start-stop, and motor auxiliary and surplus power generating to the driving power of driving engine, regulate the operating mode of driving engine to optimal economic operation area further, thus realize maximized engine drive system efficiency optimization;
(4) the present invention is directly or indirectly connected with driving engine and motor respectively by change-speed box two input ends, and driving engine and motor coaxle are arranged or be arranged in parallel, and can save the assembly width of drive system, is convenient to install;
(5) the present invention overlaps drive system by employing two, a set of is driven at low speed system, another set of when being high-speed driving system, by using driven at low speed system during low speed, high-speed driving system is used during high speed, not only reduce the discharge of dusty gas, also reduce automobile energy cost used in everyday.
Accompanying drawing explanation
Fig. 1 is the structural representation of power drive system in embodiment 1.
Fig. 2 is the structural representation of engine drive system in embodiment 1.
Fig. 3 is respectively embodiment 2 one kinds of structural representations.
Fig. 4 is the structural representation of embodiment 3.
Fig. 5, Fig. 6 are respectively a kind of structural representation of embodiment 4.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1:
See Fig. 1, a kind of power drive system, comprise motor, electric machine controller, battery, battery management system, electric motor clutch and speed reduction gearing, described electric motor clutch is controllable clutch or overriding clutch, described speed reduction gearing is gear cluster, chain or cog belt, described motor is connected with battery through electric machine controller, described battery management system is connected with battery, the physical parameter of described battery management system Real-Time Monitoring battery and balanced management battery discharge procedure, described motor, electric motor clutch and speed reduction gearing are mechanically connected successively, it is in parallel that described motor passes through electric motor clutch and speed reduction gearing and other drive systems.
See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, one surmounts relay electric drive automobile, and comprise the drive system that whole-control system, transmission device and at least two covers are in parallel, wherein at least a set of is described power drive system, drive system in parallel is in addition engine drive system, described engine drive system comprises driving engine, engine controller, power-transfer clutch, change-speed box and gearbox control, described engine controller is connected with engine wiring harness, described engine controller has the function monitored continuously and control normal working of engine, described gearbox control is connected with change-speed box wire harness, described driving engine, power-transfer clutch and change-speed box are mechanically connected successively, described speed reduction gearing and change-speed box or transmission device are mechanically connected, described change-speed box and transmission device are mechanically connected, described transmission device drives the drive wheel of vehicle, band motor vehicle is advanced, described whole-control system is connected with electric machine controller, engine controller and gearbox control wire harness respectively.
Different according to the drive efficiency of each drive system of different vehicle speed intervals, the drive system of each parallel connection can be divided into driven at low speed system and high-speed driving system.Driven at low speed system and high-speed driving system respectively at different vehicle speed intervals for automobile provides driving.
When the described power drive system of needs provides driving, entire car controller sends beginning driving instruction by electric machine controller to motor, motor is started working, electric motor clutch is mechanically connected with the mode engaged and speed reduction gearing, because speed reduction gearing is direct or indirect and transmission device is mechanically connected, therefore power drive system will provide driving by electric motor clutch, speed reduction gearing, be embodied in the drive wheel that transmission device drives vehicle, and band motor vehicle is advanced.Otherwise, when not needing power drive system to provide driving, entire car controller sends stopping driving instruction by electric machine controller to motor, motor quits work, electric motor clutch is to be releasably mechanically connected with speed reduction gearing, because motor controllable clutch is thrown off, therefore power drive system will not provide driving by electric motor clutch, speed reduction gearing.
When the described engine drive system of needs provides driving, driving engine starts high-efficiency operation, and driving engine provides driving by power-transfer clutch, change-speed box, transmission device for automobile, is embodied in the drive wheel that transmission device drives vehicle, and band motor vehicle is advanced.Otherwise, when not needing engine drive system to provide driving, engine stop.
Preferably, described entire car controller controls the work of each drive system respectively by electric machine controller, engine controller and gearbox control.Entire car controller is connected by CAN with electric machine controller, engine controller and gearbox control respectively.
Preferably, by each drive system of vehicle control unit controls, each drive system can work respectively also can co-operation, both can use in the relay of the speed of a motor vehicle of its correspondence efficient district, and also tunable uses, and when needs reinforcement, each drive system can drive jointly.
Preferably, described entire car controller runs by motor controller controls motor, thus suitably generating supplements battery.Described entire car controller can according to the service conditions of road horsepower demand and motor, battery etc., by electric machine controller determine the driving intensity of corresponding motor, disengaging work or suitably generating to help battery management system can continuous firing.Arranged by this kind, also can improve the degree of utilization of the energy.
Embodiment 2:
The present embodiment is on the basis of embodiment 1, further, the quantity of described drive system is two covers, described drive system is described power drive system, described drive system is respectively low speed electric drive trains and unifies High-speed Electric drive system, described low speed power drive system and automobile low-speed region match, and the efficient district of its speed of a motor vehicle is automobile low-speed region; Described High-speed Electric drive system and automobile high-speed region match, and the efficient district of its speed of a motor vehicle is automobile high-speed region.
See Fig. 3, for the relay drive system of two motors, the motor of low speed power drive system is A motor, and the motor of High-speed Electric drive system is B motor.A motor by A electric motor clutch, speed reduction gearing, then connects and composes the driven at low speed system of automobile by transmission shaft and drive axle; B motor by B electric motor clutch directly and drive axle connect and compose the high-speed driving system of automobile.Driven at low speed system is used for starting and driven at low speed, can be realized pure electric drive and the start and stop function of certain mileage by A motor and A electric motor clutch.During B machine operation, A motor according to burden requirement, can not work also can with B motor co-operation, be embodied in control B electric motor clutch be in disengagement or bonding state.When high-speed driving system works, namely during B machine operation, A motor is driven and rotating speed exceedes its rated value, now can handle A electric motor clutch make the disengaging work of A motor or run in safe range, the electric current produced when A motor runs will charge for battery, supplement the loss of battery, energy utilization rate is provided.
Preferably, described low speed power drive system is mainly used in assistive drive when the large torque actuated such as starting, acceleration, climbing needs, and its motor is dynamic property helper motor, and the parameter matching of its motor mainly considers tractive performance; Described High-speed Electric drive system is mainly used in the driving under conventional operating mode, and its motor is economy motor, works under the conventional operating mode of the main consideration of its parameter of electric machine coupling between its efficacious workaround; When needs reinforcement, described low speed electric drive trains described High-speed Electric drive system of unifying can drive jointly.
Other parts of the present embodiment are identical with embodiment 1, repeat no more.
Embodiment 3;
The present embodiment is on the basis of embodiment 1, and the quantity of described drive system is two covers, and wherein a set of is described power drive system, and a set of is in addition described engine drive system; Described power drive system is idling slow speed system, and during low speed, described power drive system is main driving, ensures tractive performance when starting and low speed, and has certain pure motor driving mileage; Described engine drive system is High Speed System, and during high speed, described engine drive system is main driving, ensures continual mileage and speed index.
See Fig. 4, the present embodiment improves based on traditional driving engine rear drive system, the hybrid power realizing " surmounting relay to drive " drives, the motor that power is quite little can be adopted, torque is amplified by speed reduction gearing (gear, chain or cog belt) transmission, and engaged with the output shaft of change-speed box by electric motor clutch (controllable clutch or overriding clutch), realize the pure motor driving of certain mileage and improve the low-speed dynamic of vehicle.When engine drive system work, motor is driven and rotating speed is too high time, electric motor clutch makes motor disengaging work or controls motor according to battery SOC state to run suitably generating with supplementary battery.
According to operation conditions and the demand of traveling of driving engine and motor, vehicle can have following 3 kinds of mode of operations:
A) driving engine drives separately: vehicle, by engine drive, is applicable to the interval that the fuel economy such as high speed are good;
B) motor drives: in this mode, tail-off, or change-speed box hangs neutral, vehicle is driven separately through speed reduction gearing by motor, be applicable to big city block up and the occasion of the low speed of a motor vehicle such as traffic lights and/or constantly start and stop, can kill engine, adopt pure motorized motions, reduce discharge and fuel oil consumption;
C) traction mode is mixed: be applicable to high power requirements (being greater than the power that driving engine can produce).
This technical scheme can take into account economy and dynamic property, low-speed dynamic mainly ensures by motor, continual mileage, speed index and economy depend primarily on traditional power, by a kind of new traffic tool that orthodox car and the vigorous low-speed electronic car of the market demand combine, be solve low-speed electronic car to be not suitable with at a high speed and a kind of failure-free technical scheme of long-distance transportation.
Other parts of the present embodiment are identical with embodiment 1, just repeat no more here.
Embodiment 4:
The present embodiment is on the basis of embodiment 3, further, described change-speed box has two input ends, one of them input end is connected with driving engine, another input end is connected with speed reduction gearing, described driving engine and motor drive the drive wheel of automobile respectively by transmission output and transmission device, pull moving vehicle; Described driving engine and motor coaxle are arranged or are arranged in parallel; When described driving engine and motor are arranged in parallel, described motor is connected by intermediate gearing with between change-speed box.
See Fig. 5 and Fig. 6, driving engine is connected with fuel tank.In Fig. 6, due to driving engine installation parallel with motor, therefore this kind of design can make the width after each drive system assembly of saving, is convenient to install.
See Fig. 5, when motor and driving engine coaxially arranged time, described motor is preferably disc type electric machine.
See Fig. 6, when motor and driving engine are arranged in parallel, described intermediate gearing is preferably gear cluster, chain, cog belt.
Other parts of the present embodiment are identical with embodiment 3, repeat no more.
The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls into protection scope of the present invention.
Claims (10)
1. a power drive system, it is characterized in that: comprise motor, electric machine controller, battery, battery management system, electric motor clutch and speed reduction gearing, described electric motor clutch is controllable clutch or overriding clutch, described speed reduction gearing is gear cluster, chain or cog belt, described motor is connected with battery through electric machine controller, described battery management system is connected with battery, the physical parameter of described battery management system Real-Time Monitoring battery and balanced management battery discharge procedure, described motor, electric motor clutch and speed reduction gearing are mechanically connected successively, it is in parallel that described motor passes through electric motor clutch and speed reduction gearing and other drive systems.
2. surmount a relay electric drive automobile, it is characterized in that: comprise the drive system that whole-control system, transmission device and at least two covers are in parallel, wherein at least a set of is power drive system according to claim 1, drive system in parallel is in addition engine drive system, described engine drive system comprises driving engine, engine controller, power-transfer clutch, change-speed box and gearbox control, described engine controller is connected with engine wiring harness, described engine controller has the function monitored continuously and control normal working of engine, described gearbox control is connected with change-speed box wire harness, described driving engine, power-transfer clutch and change-speed box are mechanically connected successively, described speed reduction gearing and change-speed box or transmission device are mechanically connected, described change-speed box and transmission device are mechanically connected, described transmission device drives the drive wheel of vehicle, band motor vehicle is advanced, described whole-control system is connected with electric machine controller, engine controller and gearbox control wire harness respectively.
3. one surmounts relay electric drive automobile according to claim 2, it is characterized in that: described entire car controller controls the work of each drive system respectively by electric machine controller, engine controller and gearbox control.
4. one surmounts relay electric drive automobile according to claim 3, it is characterized in that: by each drive system of vehicle control unit controls, each drive system can work respectively also can co-operation, both can use in the relay of the speed of a motor vehicle of its correspondence efficient district, also tunable uses, when needs reinforcement, each drive system can drive jointly.
5. one surmounts relay electric drive automobile according to claim 2, it is characterized in that: described entire car controller runs by motor controller controls motor, thus suitably generating supplements battery.
6. one surmounts relay electric drive automobile according to claim 2, it is characterized in that: the quantity of described drive system is two covers, described drive system is described power drive system, described drive system is respectively low speed electric drive trains and unifies High-speed Electric drive system, described low speed power drive system and automobile low-speed region match, and the efficient district of its speed of a motor vehicle is automobile low-speed region; Described High-speed Electric drive system and automobile high-speed region match, and the efficient district of its speed of a motor vehicle is automobile high-speed region.
7. one surmounts relay electric drive automobile according to claim 6, it is characterized in that: described low speed power drive system is mainly used in assistive drive when the large torque actuated such as starting, acceleration, climbing needs, its motor is dynamic property helper motor, and the parameter matching of its motor mainly considers tractive performance; Described High-speed Electric drive system is mainly used in the driving under conventional operating mode, and its motor is economy motor, works under the conventional operating mode of the main consideration of its parameter of electric machine coupling between its efficacious workaround; When needs reinforcement, described low speed electric drive trains described High-speed Electric drive system of unifying can drive jointly.
8. one surmounts relay electric drive automobile according to claim 2, it is characterized in that: the quantity of described drive system is two covers, and wherein a set of is described power drive system, and a set of is in addition described engine drive system; Described power drive system is idling slow speed system, and during low speed, described power drive system is main driving, ensures tractive performance when starting and low speed, and has certain pure motor driving mileage; Described engine drive system is High Speed System, and during high speed, described engine drive system is main driving, ensures continual mileage and speed index.
9. one surmounts relay electric drive automobile according to claim 8, it is characterized in that: described change-speed box has two input ends, one of them input end is connected with driving engine, another input end is connected with speed reduction gearing, described driving engine and motor drive the drive wheel of automobile respectively by transmission output and transmission device, pull moving vehicle; Described driving engine and motor coaxle are arranged or are arranged in parallel; When described driving engine and motor are arranged in parallel, described motor is connected by intermediate gearing with between change-speed box.
10. one surmounts relay electric drive automobile according to claim 9, it is characterized in that: described intermediate gearing is gear cluster, chain or cog belt.
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