CN109591575A - Hybrid electric drive system and vehicle - Google Patents
Hybrid electric drive system and vehicle Download PDFInfo
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- CN109591575A CN109591575A CN201710923275.6A CN201710923275A CN109591575A CN 109591575 A CN109591575 A CN 109591575A CN 201710923275 A CN201710923275 A CN 201710923275A CN 109591575 A CN109591575 A CN 109591575A
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- gear
- countershaft
- clutch
- motor
- main shaft
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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
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
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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
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
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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
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
This disclosure relates to a kind of hybrid electric drive system and vehicle.The system comprises engines, speed changer, output section, first motor, speed changer includes main shaft, countershaft, first shift gear, second shift gear, freewheel clutch, first clutch, the first driven gear that first gear gear package includes the first driving gear by main shaft carrying and carried by countershaft, the second driven gear that second gear gear package includes the second driving gear by main shaft carrying and carried by countershaft, freewheel clutch is arranged between the first driving gear and main shaft or is arranged between the first driven gear and countershaft, the power transmitting that first clutch is used to be switched on or switched off between the second driving gear and main shaft, or the power transmitting for being switched on or switched off between the second driven gear and countershaft, first motor is connected with countershaft, output section is used to export the power by countershaft transmitting to drive vehicle.
Description
Technical field
This disclosure relates to a kind of hybrid electric drive system and vehicle.
Background technique
World today's facing mankind energy shortage and environmental degradation two challenge greatly, orthodox car is increasingly subject to petroleum danger
The serious puzzlement of machine, energy conservation and environmental protection are increasingly becoming the development topic of automobile industry.In recent years, there are two types of different dynamic sources, reality for tool
The hybrid vehicle for now reducing oil consumption and discharge, has obtained development and application, and put into commodity production and introduce to the market.
Hybrid electric drive system is generally made of engine, generator, motor, electrical source of power etc., engine and dynamic
Power power supply provides power jointly for vehicle, this results in its structure and is usually relatively complex, and occupied space is larger, higher cost.
Summary of the invention
Purpose of this disclosure is to provide a kind of simple hybrid electric drive systems of structure.
To achieve the goals above, the disclosure provides a kind of hybrid electric drive system, comprising:
Engine；
Speed changer, the speed changer include:
Main shaft, the output shaft of the engine and the main shaft are coaxially connected；
Countershaft, the countershaft are parallel with main shaft；
First gear gear set, including the first driving gear carried by the main shaft and carried by the countershaft
One driven gear；
Second gear gear set, including the second driving gear carried by the main shaft and carried by the countershaft
Two driven gears；
Freewheel clutch, the freewheel clutch is arranged between first driving gear and main shaft or setting exists
Between first driven gear and countershaft, so that only can be along from the main shaft by the first gear gear set
Torsion is transmitted to the direction of the countershaft；
First clutch, the first clutch is for being switched on or switched off between second driving gear and main shaft
Power transmitting, or the power transmitting for being switched on or switched off between second driven gear and countershaft；
First motor, the first motor are connected with the countershaft, the power generation of first motor described in the driven by engine；
Output section, the output section is for exporting the power transmitted by the countershaft to drive vehicle.
Optionally, the system also includes the second motor, second motor be connected with the countershaft or with the master
Axis is connected.
Optionally, when driven by engine first motor generates electricity or motor-powered vehicle when driving, when described the
When one clutch engages, the freewheel clutch separation；When first clutch separation, the freewheel clutch engagement.
Optionally, the freewheel clutch is arranged between first driven gear and countershaft, the first clutch
Power transmitting for being switched on or switched off between second driving gear and main shaft.
Optionally, when the speed changer is in the first gear, the freewheel clutch engagement, the first clutch
Separation, the power of the engine successively pass through the main shaft, first driving gear, first driven gear, described
Freewheel clutch, the countershaft are transferred to the first motor；When the speed changer is in the second gear, it is described surmount from
Clutch separation, first clutch engagement, the power of the engine successively pass through the main shaft, the first clutch,
Second driving gear, second driven gear, the countershaft are transferred to the first motor, wherein first electricity
Machine is under the drive of the engine for generating electricity.
Optionally, when the speed changer is in the first gear, the freewheel clutch engagement, the first clutch
Separation, the power of the engine successively pass through the main shaft, first driving gear, first driven gear, described
Freewheel clutch, the countershaft are transferred to the output section；When the speed changer is in the second gear, the overdrive clutch
Device separation, the first clutch engagement, the power of the engine successively pass through the main shaft, the first clutch, institute
It states the second driving gear, second driven gear, the countershaft and is transferred to the output section.
Optionally, first gear is low gear, and second gear is high speed gear.
Optionally, the line shaft of the first motor and the countershaft are coaxially connected.
Optionally, the countershaft passes through the power axis connection of gear speed increasing mechanism and the first motor.
Optionally, the gear speed increasing mechanism includes intermeshing first speed increasing gear and the second speed increasing gear, described
The power axis connection of first speed increasing gear and the first motor, second speed increasing gear are connect with the countershaft, wherein
The number of teeth of first speed increasing gear is less than the number of teeth of second speed increasing gear.
Optionally, the line shaft of second motor is connected with the countershaft by gear drive.
Optionally, the gear drive includes intermeshing first transmission gear and the second transmission gear, described
The line shaft of second motor is connect with first transmission gear, and second transmission gear is connect with the countershaft.
Optionally, one end of the countershaft is arranged in second transmission gear, and passes through the second clutch with the countershaft
Device connection.
Optionally, the coaxial empty set of line shaft of the line shaft of the first motor and second motor.
The disclosure is by using freewheel clutch and first clutch, and first motor is connect with countershaft, can be realized
The driving of the gear of engine two and the gear power generation of engine two, structure is simple, at low cost, handling good, greatly improves the combustion of engine
Oily economy and vehicle ride comfort.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is the schematic block diagram according to the hybrid electric drive system of the first embodiment of the disclosure；
Fig. 2 is the schematic block diagram according to the hybrid electric drive system of second of embodiment of the disclosure.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
Fig. 1 is the schematic block diagram according to the hybrid electric drive system of the first embodiment of the disclosure.Such as figure
Shown in 1, the hybrid electric drive system that the disclosure provides includes engine 1, speed changer, output section 10, first motor 11, the
Two motors 12.The power of engine 1 passes to output section 10 by speed changer, and 10 output power of output section is to drive vehicle.
Wherein, speed changer includes main shaft 2, countershaft 3, the first gear gear set, the second gear gear set, freewheel clutch
8, first clutch 9.Main shaft 2 is parallel to each other with countershaft 3, and the output shaft and main shaft 2 of engine 1 are coaxially connected.First gear tooth
Wheel group includes the first driving gear 4 carried by main shaft 2 and the first driven gear 5 for being carried by countershaft 3, the first driving gear 4
It can directly engage, can also be engaged with intermediate gear with the first driven gear 5, to be connected by intermediate gear transmission
It connects.Second gear gear set includes the second driving gear 6 carried by main shaft 2 and the second driven gear carried by countershaft 3
7, the first driving gear 4 and the first driven gear 5 can be engaged directly, can also be engaged with intermediate gear, thus by should
Intermediate gear transmission connection.Here, the first gear gear set can be low-grade location gear set, and the second gear gear set can be
High gear gear set.
First motor 11 is connected with countershaft 3.First motor 11 can not only be used for generator to be used to generate electricity, but also as electricity
Motivation is for driving vehicle.Second motor 12 is connected with countershaft 3, and the second motor 12 can not only be used for motor for driving
Vehicle, but also as generator for generating electricity.In the embodiment shown in figure 1, the line shaft empty set of the second motor 12 exists
On the line shaft of first motor 11, so that the structure of hybrid electric drive system is more compact, shortens axial length, be convenient for
It is arranged on vehicle.
Main shaft 2, countershaft 3 are disposed in parallel relation to one another, and main shaft 2, countershaft 3 are mounted on the cabinet of the speed changer by bearing
On.
Output section 10 is configured to for the power that speed changer exports to be transferred to the wheel of vehicle, such as the output section 10
It may include output gear 101 and differential mechanism.Output gear 101 is connect with countershaft 3, and with the final gear of differential mechanism 102
Engagement；In other implementations, the output section 10 also may include differential mechanism.
In the first embodiment shown in Fig. 1, the first driving gear 4 is fixed gear, that is to say, that it be with
What main shaft 2 was fixedly connected, to be rotated with main shaft 2.More specifically, the first driving gear 4 can be integrally formed with main shaft 2,
It can be connected by key with main shaft 2.
The freewheel clutch is arranged between the first gear gear set and main shaft, or is arranged in the first shift gear
Between group and countershaft, engagement by freewheel clutch with separate, make the first gear gear set engaged with main shaft power or point
From either making the first gear gear set and countershaft power engage or separate, so that the switching of power is realized, to realize change
The switching of fast device gear.The freewheel clutch is well known to those skilled in the art, not to its structure and working principle at this
It is described in detail, but due to the particularity of application scenarios, this hybrid power system is using the advantages of freewheel clutch: (1) surpassing again
More clutch is the engagement or separation that two rotating elements are realized using the rotational speed difference of inside and outside two rotating elements, is not needed
Engagement or isolated power are provided using motor or hydraulic module, therefore, overrun clutch structure is simple, and stabilization can
It leans on, the reliability of hybrid power system shift can be effectively provided；(2) freewheel clutch, can for synchronizer
The momentary interruption for avoiding the torque transmitting when gear switches, guarantees the ride comfort of vehicle shift.
In the first embodiment shown in Fig. 1, the setting of freewheel clutch 8 the first driven gear 5 and countershaft 3 it
Between, the torque transmitting for being switched on or switched off between the first driven gear 5 and countershaft 3.In brief, shown in Fig. 1 first
In kind embodiment, when the revolving speed of the first driven gear 5 is greater than or equal to the revolving speed of countershaft 3, freewheel clutch 8 is engaged；When
When the revolving speed of first driven gear 5 is less than the revolving speed of countershaft 3, freewheel clutch 8 is separated.By in the first driven gear 5 and pair
Freewheel clutch 8 is set between axis 3, so that only can be along from main shaft 2 to the direction of countershaft 3 by the first gear gear set
Torque is transmitted, and torque cannot be transmitted along from countershaft 3 to the direction of main shaft 2 by the first gear gear set.
In the first embodiment shown in Fig. 1, first clutch 9 is connect with the second driving gear 6, for connecting
Or the power disconnected between the second driving gear 6 and main shaft 2 transmits.When first clutch 9 engages, it keeps the second active
Gear 6 initiatively connects to rotate with main shaft 2；When first clutch 9 separates, it is by the second driving gear 6 and main shaft 2
Disconnect rotation.First clutch 9 can perhaps its engagement of wet clutch or discrete state can using existing dry type
To be controlled by existing various clutch operating devices.Operating mechanism can use mechanical, fluid pressure type, electric
Sub- control formula etc..
Motor-powered vehicle when driving, when first clutch 9 engage when, freewheel clutch 8 separate；When first from
When clutch 9 separates, freewheel clutch 8 is engaged.Specifically, control first clutch 9 separates, and the power of engine 1 successively passes through
Main shaft 2, the first driving gear 4 are transferred to the first driven gear 5, at this point, the outer rotating element of freewheel clutch 8 (is fixed on
One driven gear 5, with the first driven gear 5 rotate synchronously) revolving speed be greater than freewheel clutch 8 interior rotating element (be fixed on
Countershaft 3, with countershaft 3 rotate synchronously) revolving speed, freewheel clutch 8 engage, 1 power of engine from the first driven gear 5 successively
It is transferred to output section 10 by freewheel clutch 8, countershaft 3, at this point, speed changer is in the first gear.It needs to cut from the first gear
When shifting to the second gear, control first clutch 9 is engaged, since the transmission ratio of the first gear is greater than the transmission ratio of the second gear,
The revolving speed of countershaft 3 is caused instantaneously to increase, so that the revolving speed of the outer rotating element of freewheel clutch 8 is less than turning for interior rotating element
Speed, freewheel clutch 8 disconnect, and complete from the first gear to the switching of the second gear.It needs to switch to first gear from the second gear
When position, control first clutch 9 is disconnected, and engine 1 transmits power cut by the second gear, and 3 revolving speed of countershaft reduces, and works as pair
When the revolving speed of axis 3 is down to the revolving speed equal to or less than the second driven gear 5, that is, the interior rotating element of freewheel clutch 8 turns
When speed is less than or equal to the revolving speed of outer rotating element, freewheel clutch 8 is engaged, and completes cutting from the second gear to the first gear
It changes.
In the power generation of driven by engine first motor, when first clutch 9 engages, freewheel clutch 8 is separated；When
When one clutch 9 separates, freewheel clutch 8 is engaged.Specifically, control first clutch 9 separates, and the power of engine 1 is successively
It is transferred to the first driven gear 5 by main shaft 2, the first driving gear 4, at this point, the outer rotating element of freewheel clutch 8 is (fixed
In the first driven gear 5, rotated synchronously with the first driven gear 5) revolving speed be greater than freewheel clutch 8 interior rotating element (Gu
Due to countershaft 3, rotated synchronously with countershaft 3) revolving speed, freewheel clutch 8 engages, and 1 power of engine is from the first driven gear 5
Pass sequentially through freewheel clutch 8, countershaft 3 is transferred to first motor 11, at this point, speed changer is in the first gear.It needs from first
When gear switches to the second gear, control first clutch 9 is engaged, since the transmission ratio of the first gear is greater than the second gear
Transmission ratio causes the revolving speed of main shaft 2 instantaneously to reduce, so that the revolving speed of the outer rotating element of freewheel clutch 8 is less than interior rotation member
The revolving speed of part, freewheel clutch 8 disconnect, and complete from the first gear to the switching of the second gear.It needs to switch from the second gear
When to the first gear, control first clutch 9 is disconnected, and engine 1 transmits power cut, 3 revolving speed of countershaft drop by the second gear
It is low, when the revolving speed of countershaft 3 is down to the revolving speed equal to or less than the second driven gear 5, that is, the interior rotation member of freewheel clutch 8
When the revolving speed of part is less than or equal to the revolving speed of outer rotating element, freewheel clutch 8 is engaged, and is completed from the second gear to first gear
The switching of position.
It by the engagement of control first clutch 9 or disconnects, the gear driving of engine two not only may be implemented, while can be real
The existing gear of engine two charging, when the engine speed is lower, can choose the lower gear of transmission ratio (the first gear), to protect
The revolving speed of card first motor 11 is in the excellent power generation range of speeds；When engine speed is higher, it can choose transmission and compare
High gear (the second gear), to guarantee that the revolving speed of first motor 11 is in the excellent power generation range of speeds, thus, it is possible to improve
The generating efficiency of first motor 11 extends the service life of first motor 11.
In order to which high efficiency region when being used for generator with first motor 11 matches, generating efficiency is further increased, is being schemed
In the first embodiment shown in 1, countershaft 3 is connected with the line shaft of first motor 11 by gear speed increasing mechanism, so that the
The revolving speed of one motor 11 is greater than the revolving speed of countershaft 3.
Specifically, in the first embodiment shown in Fig. 1, gear speed increasing mechanism includes intermeshing first increasing
Fast gear 13 and the second speed increasing gear 14, the power axis connection of the first speed increasing gear 13 and first motor 11, the second speed increasing gear
14 connect with countershaft 3, wherein the number of teeth of the first speed increasing gear 13 less than the second speed increasing gear 14 the number of teeth so that first motor
11 revolving speed is greater than the revolving speed of engine 1.
Second motor 12 can be connected by any suitable mode with countershaft 3, such as pass through gear drive phase
Even.Specifically, in the embodiment shown in figure 1, gear drive includes intermeshing first transmission gear 15 and
Two transmission gears 16, the line shaft of the second motor 12 are engaged with the first transmission gear 15, and the second transmission gear 16 connects with countershaft 3
It connects.In other embodiments, the second motor 12 can be connected with main shaft 2, can by the way that the second motor 12 is connected with main shaft 2
To realize the gear driving of the second motor two.
Freewheel clutch 8 can be arranged in main shaft 2, can also be arranged in countershaft 3；First clutch 9 can be arranged in master
Axis 2 can also be arranged in countershaft 3.It can be seen that the tooth arranged on the gear ratio main shaft 2 arranged on countershaft 3 from Fig. 1 to Fig. 2
Wheel is more, in order to reduce the axial dimension of hybrid electric drive system, keeps system structure more compact, preferably, can incite somebody to action
The relatively small freewheel clutch 8 of volume is arranged on countershaft 3, and the relatively large first clutch 9 of volume is arranged in main shaft
On 2.
It should be noted that in the case where freewheel clutch 8 is arranged in main shaft 2, when the revolving speed of main shaft 2 is greater than first
When the revolving speed of driving gear 4, freewheel clutch 8 is engaged；When revolving speed of the revolving speed of main shaft 2 less than the first driving gear 4, surpass
More clutch 8 disconnects.And in the case where freewheel clutch 8 is arranged in countershaft 3, when the revolving speed of the first driven gear 5 is greater than pair
When the revolving speed of axis 3, freewheel clutch 8 is engaged；When the revolving speed of the first driven gear 5 is less than the revolving speed of countershaft 3, overdrive clutch
Device 8 separates.Fig. 2 is the schematic block diagram according to second of embodiment of the disclosure.Second of embodiment and first
The difference of kind of embodiment essentially consists in: the second transmission gear 16 is arranged in one end of countershaft 3, and with countershaft 3 by second from
Clutch 17 connects.By the way that second clutch 17 is arranged, so that in pure fuel oil operating condition (including pure fuel oil driving operating condition and pure fuel oil
Generating operation mode), it can be separated by control second clutch 17, the second motor 12, the first transmission gear 15 and second are passed
Moving gear 16 is disengaged from countershaft 3, to reduce load, improves working efficiency.
The hybrid electric drive system of the disclosure can have following operating condition；
One, the second motor pure electric vehicle operating condition.It controls first clutch 9 to disconnect, engine 1 and first motor 11 not work
Make, the second motor 12 drives wheel by differential mechanism, and freewheel clutch 8 disconnects automatically.The operating condition is mainly used at the uniform velocity or city
Situations such as road surface, while battery electricity with higher.The advantages of operating condition, is that the second motor 12 directly drives, transmission chain
Component that is most short, participating in work is minimum, can achieve highest transmission efficiency and the smallest noise.
Two, bi-motor pure electric vehicle operating condition.It controls first clutch 9 to disconnect, the power of first motor 11 and the second motor 12
Power drives wheel by countershaft 3 and differential mechanism, and freewheel clutch 8 disconnects automatically.Two motors adjust revolving speed, it is ensured that transmitting
Angular speed to countershaft 3 is consistent.The larger load occasions such as the operating condition is mainly used for accelerating, climbs, overtake other vehicles, high speed, and battery electricity
Measure higher situation.The operating condition possesses better power performance compared to single motor driving, possesses more preferably compared to hybrid power
Economy and lower noise, can more protrude its advantage typical applications be heavy grade (winding road) congestion road conditions.
Three, operating condition in parallel.Engine 1, first motor 11 and the second motor 12 drive wheel.Two motor adjustable speeds
To cooperate the output angular velocity of countershaft 2.The advantages of operating condition is three engines (engine 1, first motor 11 and the second motor 12)
It drives simultaneously, maximum power performance can be played.
Four, engine independently drives operating condition.Engine from idling to vehicle launch, the torque of engine 1 by surmount from
Clutch 8 is transmitted to countershaft 3 from main shaft 2, and as speed is promoted, control first clutch 9 is engaged, and freewheel clutch 8 is from dynamic circuit breaker
It opens, engine gear shifts to the second gear from the first gear.When gear switching, the engagement and disconnection process of two clutches
In have overlapping region, avoid torque transmit momentary interruption, guarantee vehicle run ride comfort.
Five, engine charging operating condition.The power of engine 1 is transferred to first motor 11 by shift gear group, passes through control
The engagement of first clutch 9 processed disconnects, and can be realized the gear charging of engine two, that is, realizes the gear power generation of first motor two.
Six, engine driving charging operating condition.On the basis of engine independently drives operating condition, while driving first motor 11
Power generation.
Seven, mixed connection operating condition.Power is transferred to differential mechanism by shift gear group to drive wheel by engine 1, and is passed through
Power is transferred to first motor 11 to drive first motor 11 to generate electricity by shift gear group, and the second motor 12 is driven by differential mechanism
Motor car wheel.The operating condition be mainly used for accelerate, climbing etc. larger load occasion and electricity it is few in the case where.The advantages of operating condition
It is the whole power that can play engine 1, had not only guaranteed the dynamic property of vehicle, but also can generate electricity simultaneously, and kept battery
Electricity.
According to one aspect of the disclosure, a kind of vehicle is provided, which uses hybrid drive train as described above
System.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.For example, in other embodiments, can will surmount from
Clutch is arranged between the first driving gear and main shaft, and makes first clutch for being switched on or switched off the second driving gear
Power transmitting between main shaft；Alternatively, freewheel clutch can be arranged between the first driven gear and countershaft, and
Make power transmitting of the first clutch for being switched on or switched off between the second driven gear and countershaft.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the disclosure is to various
No further explanation will be given for possible combination.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (15)
1. a kind of hybrid electric drive system characterized by comprising
Engine (1)；
Speed changer, the speed changer include:
Main shaft (2), the output shaft and the main shaft (2) of the engine (1) are coaxially connected；
Countershaft (3), the countershaft (3) are parallel with main shaft (2)；
First gear gear set is carried including the first driving gear (4) carried by the main shaft (2) and by the countershaft (3)
The first driven gear (5)；
Second gear gear set is carried including the second driving gear (6) carried by the main shaft (2) and by the countershaft (3)
The second driven gear (7)；
Freewheel clutch (8), the freewheel clutch (8) be arranged between first driving gear (4) and main shaft (2) or
It is arranged between first driven gear (5) and countershaft (3), so that passing through the first gear gear set only can be along
It transmits and reverses to the direction of the countershaft (3) from the main shaft (2)；
First clutch (9), the first clutch (9) is for being switched on or switched off second driving gear (6) and main shaft (2)
Between power transmitting, or power for being switched on or switched off between second driven gear (7) and countershaft (3) transmits；
First motor (11), the engine (1) drive first motor (11) power generation, the first motor (11) with it is described
Countershaft (3) is connected；
Output section (10), the output section (10) are used to export the power by the countershaft (3) transmitting to drive vehicle.
2. system according to claim 1, which is characterized in that the system also includes the second motor (12), described second
Motor (12) is connected with the countershaft (3) or is connected with the main shaft (2).
3. system according to claim 1, which is characterized in that drive the first motor (11) in the engine (1)
When power generation or the engine (1) drive vehicle driving when, when the first clutch (9) engagement when, it is described surmount from
Clutch (8) separation；When the first clutch (9) separation, freewheel clutch (8) engagement.
4. system according to claim 1, which is characterized in that freewheel clutch (8) setting is driven described first
Between gear (5) and countershaft (3), the first clutch (9) is for being switched on or switched off second driving gear (6) and main shaft
(2) the power transmitting between.
5. system according to claim 4, which is characterized in that described to surmount when the speed changer is in the first gear
Clutch (8) engagement, first clutch (9) separation, the power of the engine (1) successively pass through the main shaft (2), institute
State the first driving gear (4), first driven gear (5), the freewheel clutch (8), the countershaft (3) be transferred to it is described
First motor (11)；When the speed changer is in the second gear, freewheel clutch (8) separation, the first clutch
(9) it engages, the power of the engine (1) successively passes through the main shaft (2), the first clutch (9), described second actively
Gear (6), second driven gear (7), the countershaft (3) are transferred to the first motor (11), wherein first electricity
Machine (11) is used to generate electricity under the drive of the engine (1).
6. system according to claim 4, which is characterized in that described to surmount when the speed changer is in the first gear
Clutch (8) engagement, first clutch (9) separation, the power of the engine (1) successively pass through the main shaft (2), institute
State the first driving gear (4), first driven gear (5), the freewheel clutch (8), the countershaft (3) be transferred to it is described
Output section (10)；When the speed changer is in the second gear, freewheel clutch (8) separation, the first clutch (9)
Engagement, the power of the engine (1) successively pass through the main shaft (2), the first clutch (9), second driving tooth
Wheel (6), second driven gear (7), the countershaft (3) are transferred to the output section (10).
7. system according to claim 5 or 6, which is characterized in that first gear is low gear, the second gear
Position is high speed gear.
8. system according to claim 1, which is characterized in that the line shaft and the countershaft of the first motor (11)
(3) coaxially connected.
9. system according to claim 1, which is characterized in that the countershaft (3) passes through gear speed increasing mechanism and described the
The power axis connection of one motor (11).
10. system according to claim 1, which is characterized in that the gear speed increasing mechanism includes intermeshing first
Speed increasing gear (13) and the second speed increasing gear (14), the line shaft of first speed increasing gear (13) and the first motor (11)
Connection, second speed increasing gear (14) connect with the countershaft (3), wherein the number of teeth of first speed increasing gear (13) is small
In the number of teeth of second speed increasing gear (14).
11. system according to claim 2, which is characterized in that the line shaft and the countershaft of second motor (12)
(3) it is connected by gear drive.
12. system according to claim 11, which is characterized in that the gear drive includes intermeshing first
Transmission gear (15) and the second transmission gear (16), the line shaft of second motor (12) and first transmission gear (15)
Connection, second transmission gear (16) connect with the countershaft (3).
13. system according to claim 12, which is characterized in that second transmission gear (16) is arranged in the countershaft
(3) one end, and connect with the countershaft (3) by second clutch (17).
14. system according to claim 2, which is characterized in that the line shaft and described second of the first motor (11)
The coaxial empty set of line shaft of motor (12).
15. a kind of vehicle, which is characterized in that including hybrid drive train described according to claim 1 any one of -14
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923275.6A CN109591575A (en) | 2017-09-30 | 2017-09-30 | Hybrid electric drive system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923275.6A CN109591575A (en) | 2017-09-30 | 2017-09-30 | Hybrid electric drive system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109591575A true CN109591575A (en) | 2019-04-09 |
Family
ID=65956243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710923275.6A Pending CN109591575A (en) | 2017-09-30 | 2017-09-30 | Hybrid electric drive system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109591575A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322357A (en) * | 2020-03-03 | 2020-06-23 | 重庆华陵工业有限公司 | Main and auxiliary shaft combination capable of adjusting gear connection mode |
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| JP2007057043A (en) * | 2005-08-25 | 2007-03-08 | Toyota Motor Corp | Transmission with a plurality of clutches |
| CN201416628Y (en) * | 2009-04-07 | 2010-03-03 | 重庆劲霸摩托车制造有限公司 | Automatic gear shifter |
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