CN112224010B - Driving system of single-motor hybrid power vehicle - Google Patents

Driving system of single-motor hybrid power vehicle Download PDF

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Publication number
CN112224010B
CN112224010B CN202011147503.3A CN202011147503A CN112224010B CN 112224010 B CN112224010 B CN 112224010B CN 202011147503 A CN202011147503 A CN 202011147503A CN 112224010 B CN112224010 B CN 112224010B
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China
Prior art keywords
gear
clutch
synchronizer
shaft
input shaft
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CN202011147503.3A
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Chinese (zh)
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CN112224010A (en
Inventor
肖腾飞
柯孟龙
严军
南婧雯
李曼丽
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Dongfeng Motor Corp
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Dongfeng Motor Corp
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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
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • 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
    • 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
    • B60K6/42—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 the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/445—Differential gearing distribution type
    • 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
    • B60K6/42—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 the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The invention provides a driving system of a single-motor hybrid vehicle, which comprises an engine, an input shaft, an output shaft, a motor shaft, a differential mechanism and an auxiliary input shaft, wherein the engine is connected with the input shaft through a torsional vibration damper; a fourth gear, a fifth gear, a sixth gear and a seventh gear are sequentially arranged on the output shaft, an eighth gear and a ninth gear are arranged on the auxiliary input shaft, a tenth gear is arranged on the motor shaft, a differential gear is arranged on the differential, and the fifth gear, the sixth gear and the seventh gear are respectively meshed with the first gear, the second gear, the third gear, the eighth gear, the ninth gear and the tenth gear; the differential gear is meshed with the fourth gear, the structure of the invention is compact, multiple driving modes of a transmission system are realized, the energy consumption of the vehicle is reduced, and the economy of the vehicle is improved.

Description

Driving system of single-motor hybrid power vehicle
Technical Field
The invention belongs to the technical field of hybrid electric vehicles, and particularly relates to a driving system of a single-motor hybrid electric vehicle.
Background
With the increasing awareness of people on energy conservation and environmental protection in the current society, new energy automobile technology begins to develop rapidly. The hybrid vehicle driving technology is the core stage of the new energy automobile development process. In the prior art, in order to obtain more functions and higher efficiency, the adopted structure is more complex and the cost is higher. Improving fuel economy and reducing emissions are important issues facing hybrid technologies. The prior art often has the defects of excessive efficiency loss and simpler functional mode in structure. For example, when the driving motor is driven alone, the function of two speed ratios of the driving motor cannot be realized by the planetary gear. The functions of torque compensation and power split of the driving motor to the engine during starting cannot be realized. Need additionally set up the gear pair and realize above-mentioned function, the structure is complicated, and occupation space is big. Therefore, a hybrid power driving system with excellent cost performance is developed and has a strong reference significance.
Disclosure of Invention
The present invention is directed to a drive system for a single-motor hybrid vehicle, which has a more compact structure and prevents energy loss.
The technical scheme adopted by the invention for solving the technical problems is as follows: the driving system of the single-motor hybrid vehicle is characterized by comprising an engine, an input shaft, an output shaft, a motor shaft, a differential and an auxiliary input shaft, wherein the input shaft, the output shaft, the motor shaft and the auxiliary input shaft are arranged in parallel at intervals; a fourth gear, a fifth gear, a sixth gear and a seventh gear are sequentially arranged on the output shaft, an eighth gear and a ninth gear are arranged on the auxiliary input shaft, a tenth gear is arranged on the motor shaft, a differential gear is arranged on the differential, and the fifth gear, the sixth gear and the seventh gear are respectively meshed with the first gear, the second gear and the third gear, and the eighth gear, the ninth gear and the tenth gear; the differential gear is meshed with the fourth gear.
According to the scheme, the input shaft is further provided with a first double-sided synchronizer which is positioned between the first gear and the second gear.
According to the scheme, the output shaft is further provided with a second bilateral synchronizer which is located between the fifth gear and the sixth gear.
According to the scheme, the first clutch is arranged on the input shaft and is positioned behind the third gear.
According to the scheme, the output shaft is provided with the second clutch which is positioned between the sixth gear and the seventh gear.
According to the scheme, the auxiliary input shaft is provided with a third clutch which is positioned between the eighth gear and the ninth gear.
The invention has the beneficial effects that: the driving system of the single-motor hybrid vehicle is provided, and four-gear driving in a pure electric driving mode and an engine driving mode is realized through one auxiliary shaft by arranging 2x2 combined gear gears; the driven gear of the output shaft of the motor and the driven gear of the direct drive shaft of the engine are integrated into one gear, so that multi-gear driving in a pure electric driving mode is realized without additionally arranging a gear pair, the compact structure is ensured, meanwhile, various driving modes of a transmission system are realized, the selection of a control strategy of the whole vehicle can be enriched, the oil consumption of the vehicle is reduced, and the economical efficiency of the vehicle is improved; an energy recovery mode is set, so that the braking efficiency of the vehicle is improved while the electric energy is saved; the coupling and decoupling device of the power input of the traditional gearbox engine, such as a dry/wet clutch, is omitted, and the cost of the system is reduced.
Drawings
FIG. 1 is a schematic distribution diagram of one embodiment of the present invention.
Detailed Description
For a better understanding of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings and examples.
As shown in fig. 1, a driving system of a single-motor hybrid vehicle comprises an engine 1, an input shaft 7, an output shaft 9, a motor 21, a motor shaft 20, a differential 15 and an auxiliary input shaft 18, wherein the input shaft, the output shaft, the motor shaft and the auxiliary input shaft are arranged in parallel at intervals, the engine is connected with the input shaft through a torsional vibration damper 2, and the input shaft is sequentially provided with a first gear 3, a second gear 5 and a third gear 23; a fourth gear 8, a fifth gear 10, a sixth gear 12 and a seventh gear 24 are sequentially arranged on the output shaft, an eighth gear 16 and a ninth gear 17 are arranged on the auxiliary input shaft, a tenth gear 19 is arranged on the motor shaft, a differential gear 14 is arranged on the differential, and the fifth gear, the sixth gear and the seventh gear are respectively meshed with the first gear, the second gear, the third gear, the eighth gear, the ninth gear and the tenth gear; the differential gear meshes with the fourth gear.
The input shaft is also provided with a first bilateral synchronizer 4 which is positioned between the first gear and the second gear; the output shaft is also provided with a second bilateral synchronizer 11 which is positioned between the fifth gear and the sixth gear.
The input shaft is provided with a first clutch 6 which is positioned behind the third gear; the output shaft is provided with a second clutch 13 which is positioned between the sixth gear and the seventh gear; the auxiliary input shaft is provided with a third clutch 22 which is positioned between the eighth gear and the ninth gear. The driving system has the functions of parking power generation, driving power generation and pure electric driving by arranging the first clutch and the second clutch; meanwhile, the generator can be prevented from reversely dragging the engine in the pure electric driving mode, so that the energy loss is reduced; by providing the third clutch, energy waste caused by idling of the gear is prevented while the structure is made compact.
Directly driving an engine:
the engine has 4 forward gears, and the power transmission path is explained as follows:
first gear:
the first clutch is disconnected, the second clutch is disconnected, and the left engaging end S1L of the first synchronizer is engaged with the first gear; the second synchronizer left side engaging end S2L is engaged with the fifth gear, which is the first gear of the engine direct drive mode, power is transmitted to the differential gear through the torsional damper, the input shaft, the first synchronizer left side engaging end S1L, the first gear, the fifth gear, the second synchronizer left side engaging end S2L, the second synchronizer, the output shaft, and the fourth gear in sequence, power is transmitted to the vehicle drive shaft through the differential, and the third clutch is disengaged to interrupt power transmission of the auxiliary input shaft.
Second gear:
the first clutch is disconnected, the second clutch is disconnected, and the left engaging end S1L of the first synchronizer is engaged with the first gear; the second synchronizer right side engaging end S2R is combined with a sixth gear, which is the second gear of the engine direct drive mode, power is transmitted to a differential gear through a torsional damper, an input shaft, a first synchronizer left side engaging end S1L, a first gear, a fifth gear, an eighth gear, a secondary input shaft, a ninth gear, a sixth gear, a second synchronizer right side engaging end S2R, a second synchronizer, an output shaft and a fourth gear in sequence, and power is transmitted to a vehicle driving shaft through the differential gear.
Third gear:
the first clutch is disconnected, the second clutch is disconnected, and the right engaging end S1R of the first synchronizer is combined with the second gear; the second synchronizer left engaging end S2L is combined with the fifth gear, which is the third gear of the engine direct drive mode, power is transmitted to the differential gear through the torsional vibration damper, the input shaft, the first synchronizer right engaging end S1R, the second gear, the sixth gear, the ninth gear, the auxiliary input shaft, the eighth gear, the fifth gear, the second synchronizer left engaging end S2L, the second synchronizer, the output shaft and the fourth gear in sequence, and power is transmitted to the vehicle driving shaft through the differential gear.
Fourth gear:
the first clutch is disconnected, the second clutch is disconnected, and the right engaging end S1R of the first synchronizer is combined with the second gear; the second synchronizer right engaging end S2R is engaged with the sixth gear V, which is the fourth gear of the engine in direct drive mode, and power is transmitted to the differential gear through the torsional vibration damper, the input shaft, the first synchronizer right engaging end S1R, the second gear, the sixth gear, the second synchronizer right engaging end S2R, the second synchronizer, the output shaft, and the fourth gear in sequence, and is transmitted to the vehicle drive shaft through the differential.
The pure electric mode comprises a pure electric direct drive mode and a pure electric direct drive mode with 4 gears. Respectively as follows:
pure electric direct drive-stepless speed change:
the first clutch is disconnected, the second clutch is closed, and under the condition that the SOC electric quantity is sufficient, the motor is driven, and at the moment, the motor is in a direct drive mode. The power source is transmitted to a differential gear by a motor through a motor shaft, a tenth gear, a second clutch, an output shaft and a fourth gear in sequence, and power is transmitted to a vehicle driving shaft through the differential gear.
Pure electric first gear:
the first clutch is closed, the second clutch is opened, and when the SOC electric quantity is sufficient, the motor is driven, and the left engaging end S1L of the first synchronizer is combined with the first gear; the second synchronizer left side engaging end S2L is engaged with the fifth gear, which is the first gear of the pure electric drive mode, and power is transmitted to the differential gear through the motor shaft, the tenth gear, the second clutch, the first clutch, the input shaft, the first synchronizer S1, the first synchronizer left side engaging end S1L, the first gear, the fifth gear, the second synchronizer left side engaging end S2L, the second synchronizer, the output shaft, and the fourth gear in sequence, and is transmitted to the vehicle drive shaft through the differential.
Pure electric second gear:
the first clutch is closed, the second clutch is opened, and under the condition that the SOC electric quantity is sufficient, the motor is driven, and the left engaging end S1L of the first synchronizer is combined with the first gear I; the second synchronizer right engaging end S2R is coupled with a sixth gear, which is the second gear of the pure electric drive mode, and power is transmitted to a differential gear through a motor shaft, a tenth gear, a second clutch, a first clutch, an input shaft, a first synchronizer left engaging end S1L, a first gear, a fifth gear, an eighth gear, a secondary input shaft, a ninth gear, a sixth gear, a second synchronizer right engaging end S2R, a second synchronizer, an output shaft and a fourth gear in sequence, and is transmitted to a vehicle drive shaft through the differential gear.
Pure electric third gear:
the first clutch is closed, the second clutch is opened, and under the condition that the SOC electric quantity is sufficient, the motor is driven, and the right engaging end S1R of the first synchronizer is combined with the second gear; the second synchronizer left engaging end S2L is engaged with the fifth gear, which is the third gear of the pure electric mode, and power is transmitted to the differential gear through the motor shaft, the tenth gear, the second clutch, the first clutch, the input shaft, the first synchronizer S1, the first synchronizer right engaging end S1R, the second gear, the sixth gear, the ninth gear, the auxiliary input shaft, the eighth gear, the fifth gear, the second synchronizer left engaging end S2L, the second synchronizer, the output shaft, and the fourth gear in sequence, and is transmitted to the vehicle driving shaft through the differential gear.
Pure electric fourth gear:
the first clutch is closed, the second clutch is opened, and under the condition that the SOC electric quantity is sufficient, the motor is driven, and the right engaging end S1R of the first synchronizer is combined with the second gear; the second synchronizer right engaging end S2R is engaged with the sixth gear, which is the fourth gear of the pure electric mode, and power is transmitted to the differential gear through the motor shaft, the tenth gear, the second clutch, the first clutch, the input shaft, the first synchronizer right engaging end S1R, the second gear, the sixth gear, the second synchronizer right engaging end S2R, the second synchronizer, the output shaft, and the fourth gear in sequence, and is transmitted to the vehicle drive shaft through the differential gear.
When the engine runs in the high-efficiency interval or the SOC electric quantity is insufficient, the motor generates electricity, and at the moment, 4 gears exist in a driving electricity generation mode:
driving and generating power at first gear:
the first clutch is closed, the second clutch is opened, and the left engaging end S1L of the first synchronizer is combined with the first gear; the second synchronizer left engaging end S2L is engaged with the fifth gear, which is the first gear of the power generation mode of the traveling crane, and a part of the power is transmitted to the differential gear through the torsional vibration damper, the input shaft, the first synchronizer left engaging end S1L, the first gear, the fifth gear, the second synchronizer left engaging end S2L, the second synchronizer, the output shaft, and the fourth gear in sequence, and the power is transmitted to the vehicle driving shaft through the differential. And the other part of power is sequentially transmitted to the motor from the engine through the torsional vibration damper, the input shaft, the first clutch, the second clutch, the tenth gear and the motor shaft to generate power and supplement the electric quantity of the battery.
Driving power generation second gear:
the first clutch is closed, the second clutch is opened, and the left engaging end S1L of the first synchronizer is combined with the first gear; the second synchronizer right-side engaging end S2R is engaged with the sixth gear, which is the second gear of the power generation mode of the traveling vehicle, and a part of the power is transmitted to the differential gear through the torsional damper, the input shaft, the first synchronizer left-side engaging end S1L, the first wheel, the fifth gear, the eighth gear, the auxiliary input shaft, the ninth gear, the sixth gear, the second synchronizer right-side engaging end S2R, the second synchronizer, the output shaft, and the fourth gear in sequence, and the power is transmitted to the vehicle drive shaft through the differential gear. And the other part of power is sequentially transmitted to the motor from the engine through the torsional vibration damper, the input shaft, the first clutch, the second clutch, the tenth gear and the motor shaft to generate power and supplement the electric quantity of the battery.
Driving and power generation three-gear:
the first clutch is closed, the second clutch is opened, and the right engaging end S1R of the first synchronizer is combined with the second gear; the second synchronizer left engaging end S2L is engaged with the fifth gear, which is the third gear of the power generation mode of the traveling crane, and a part of the power is transmitted to the differential gear through the torsional damper, the input shaft, the first synchronizer right engaging end S1R, the second gear, the sixth gear, the ninth gear, the auxiliary input shaft, the eighth gear, the fifth gear, the second synchronizer left engaging end S2L, the second synchronizer, the output shaft and the fourth gear in sequence, and the power is transmitted to the vehicle driving shaft through the differential gear. And the other part of power is sequentially transmitted to the motor from the engine through the torsional vibration damper, the input shaft, the first clutch, the second clutch, the tenth gear and the motor shaft to generate power and supplement the electric quantity of the battery.
Driving power generation four-gear:
the first clutch is closed, the second clutch is opened, and the right engaging end S1R of the first synchronizer is combined with the second gear; the second synchronizer right engaging end S2R is engaged with the sixth gear, which is the fourth gear of the driving power generation mode, and a part of the power is transmitted to the differential gear through the torsional damper, the input shaft, the first synchronizer right engaging end S1R, the second gear, the sixth gear, the second synchronizer right engaging end S2R, the second synchronizer, the output shaft, and the fourth gear in sequence, and the power is transmitted to the vehicle driving shaft through the differential. And the other part of power is sequentially transmitted to the motor from the engine through the torsional vibration damper, the input shaft, the first clutch, the second clutch, the tenth gear and the motor shaft to generate power and supplement the electric quantity of the battery.
A parking power generation mode:
the first clutch is closed, the second clutch is opened, the vehicle is in a parking idle state at the moment, all power is transmitted to the motor from the engine through the torsional vibration damper, the input shaft, the first clutch, the second clutch, the tenth gear and the motor shaft to generate power and supplement the electric quantity of the battery.
When the SOC is sufficient, the motor participates in driving, 4 gears exist in a hybrid parallel mode at the moment, and adjustment and selection can be performed according to a whole vehicle control strategy.
A braking energy recovery mode:
through the whole vehicle control strategy, when the vehicle is driven by pure electric direct drive, series traveling and hybrid parallel, the brake is stepped on, the control strategy is adjusted at the moment, the first clutch is disconnected, the second clutch is closed, the dragging torque of the whole vehicle is transmitted to the differential gear through the differential gear at the moment, and the dragging torque is transmitted to the motor through the fourth gear, the output shaft, the second clutch, the tenth gear and the motor shaft to generate power and supplement the electric quantity of the battery.
Mixing and connecting a first gear in parallel:
the motor is driven, one of the first clutch and the second clutch is closed, the other one of the first clutch and the second clutch is closed, and the motor assists in outputting power except for the engine. The first synchronizer left engaging end S1L is coupled to the first gear; the second synchronizer left engaging end S2L is engaged with the fifth gear, which is the first gear of the hybrid parallel mode, and power is transmitted to the differential gear through the torsional damper, the input shaft, the first synchronizer left engaging end S1L, the first gear, the fifth gear, the second synchronizer left engaging end S2L, the second synchronizer, the output shaft, and the fourth gear in sequence from the engine, and is transmitted to the vehicle drive shaft through the differential.
Hybrid parallel connection second gear:
the motor is driven, one of the first clutch and the second clutch is closed, the other clutch is closed, and the motor outputs power in an auxiliary mode except for the engine. The first synchronizer left engaging end S1L is coupled to the first gear; the right side engaging end S2R of the synchronizer in the first clutch and the second clutch is combined with a sixth gear, at the moment, the power is in a second gear of a hybrid parallel mode, the power is transmitted to a differential gear through a torsional damper, an input shaft, the first synchronizer, a left side engaging end S1L of the first synchronizer, the first gear, a fifth gear, an eighth gear, a secondary input shaft, a ninth gear, the sixth gear, the right side engaging end S2R of the second synchronizer, an output shaft and a fourth gear in sequence by an engine, and the power is transmitted to a vehicle driving shaft through the differential gear.
Mixing and parallel connection three gears:
the motor is driven, one of the first clutch and the second clutch is closed, the other clutch is closed, and the motor outputs power in an auxiliary mode except for the engine. The first synchronizer right engaging end S1R is engaged with the second gear; the second synchronizer left engaging end S2L is engaged with the fifth gear, which is the third gear of the hybrid parallel mode, and power is transmitted to the differential gear through the torsional damper, the input shaft, the first synchronizer right engaging end S1R, the second gear, the sixth gear, the ninth gear, the auxiliary input shaft, the eighth gear, the fifth gear, the second synchronizer left engaging end S2L, the second synchronizer, the output shaft, and the fourth gear in sequence, and is transmitted to the vehicle drive shaft through the differential.
Mixing and parallel connection of four gears:
the motor is driven, one of the first clutch and the second clutch is closed, the other clutch is closed, and the motor outputs power in an auxiliary mode except for the engine. The first synchronizer right engaging end S1R is engaged with the second gear; the second synchronizer right engaging end S2R is engaged with the sixth gear, which is now the fourth gear of the parallel hybrid mode, and power is transmitted to the differential gear through the torsional damper, the input shaft, the first synchronizer right engaging end S1R, the second gear, the sixth gear, the second synchronizer right engaging end S2R, the second synchronizer, the output shaft, and the fourth gear in sequence from the engine, and is transmitted to the vehicle drive shaft via the differential.
Compensation of gear shifting torque:
when the engine end carries out random gear shifting, the motor drives to regulate the speed, and the interruption of power caused by gear shifting is avoided. And the rotating speed difference between the input end and the output end of the one-way synchronizer can be adjusted, so that the vehicle starts smoothly and has small impact. At the moment, the power reaches the second clutch and the first clutch through the motor shaft and the tenth gear by the motor. According to the control strategy of the whole vehicle, the conditions that the first clutch is closed and the second clutch is opened or the first clutch is opened and the second clutch is closed are selected, and then the generated torque of the motor is transmitted to the input end of the synchronizer.
Starting the engine when the vehicle is stopped:
the motor is driven, the generated driving force reaches the input shaft through the motor shaft, the tenth gear, the second clutch and the first clutch, and then the engine is reversely dragged to a proper rotating speed through the torsional damper to start.
In each mode, the shift element state logic is as follows:
watch 1
Figure BDA0002740135540000071
Figure BDA0002740135540000081

Claims (1)

1. The driving system of the single-motor hybrid vehicle is characterized by comprising an engine, an input shaft, an output shaft, a motor shaft, a differential and an auxiliary input shaft, wherein the input shaft, the output shaft, the motor shaft and the auxiliary input shaft are arranged in parallel at intervals; a fourth gear, a fifth gear, a sixth gear and a seventh gear are sequentially arranged on the output shaft, an eighth gear and a ninth gear are arranged on the auxiliary input shaft, a tenth gear is arranged on the motor shaft, a differential gear is arranged on the differential, and the fifth gear, the sixth gear and the seventh gear are respectively meshed with the first gear, the second gear and the third gear, and the eighth gear, the ninth gear and the tenth gear; the differential gear is meshed with the fourth gear; a first clutch is arranged on the input shaft and is positioned behind the third gear, and a second clutch is arranged on the output shaft and is positioned between the sixth gear and the seventh gear; the input shaft is also provided with a first bilateral synchronizer which is positioned between the first gear and the second gear, and the auxiliary input shaft is provided with a third clutch which is positioned between the eighth gear and the ninth gear; and a second bilateral synchronizer is also arranged on the output shaft and is positioned between the fifth gear and the sixth gear.
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CN114228474B (en) * 2021-12-08 2023-06-27 东风汽车集团股份有限公司 Hybrid gearbox, hybrid driving system and vehicle

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EP1167104A2 (en) * 2000-06-28 2002-01-02 Aisin Aw Co., Ltd. Hybrid vehicle
EP1067002B1 (en) * 1999-07-06 2003-05-28 Peugeot Citroen Automobiles SA Parallel-shaft transmission for vehicles with hybrid propulsion
CN102490585A (en) * 2011-12-02 2012-06-13 重庆青山工业有限责任公司 Automobile hybrid power assembly
CN106931129A (en) * 2015-12-31 2017-07-07 重庆硬核派传动科技有限公司 A kind of hybrid vehicle four-speed gear box
CN108397521A (en) * 2018-04-02 2018-08-14 舍弗勒技术股份两合公司 hybrid transmission and vehicle
CN111497589A (en) * 2020-04-10 2020-08-07 东风汽车集团有限公司 Power transmission system of hybrid electric vehicle and power transmission method thereof

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EP1167104A2 (en) * 2000-06-28 2002-01-02 Aisin Aw Co., Ltd. Hybrid vehicle
CN102490585A (en) * 2011-12-02 2012-06-13 重庆青山工业有限责任公司 Automobile hybrid power assembly
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CN111497589A (en) * 2020-04-10 2020-08-07 东风汽车集团有限公司 Power transmission system of hybrid electric vehicle and power transmission method thereof

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