CN111731090B - Two segmentation bi-motor hybrid automatic gearbox - Google Patents

Two segmentation bi-motor hybrid automatic gearbox Download PDF

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Publication number
CN111731090B
CN111731090B CN202010220324.1A CN202010220324A CN111731090B CN 111731090 B CN111731090 B CN 111731090B CN 202010220324 A CN202010220324 A CN 202010220324A CN 111731090 B CN111731090 B CN 111731090B
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China
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power
planet row
motor
clutch
brake
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CN111731090A (en
Inventor
李吉元
石彦辉
冯光军
王明成
王叶
韩宇石
李慧渊
卜树峰
丁桂杰
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China North Vehicle Research Institute
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China North Vehicle Research Institute
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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
    • B60K6/26—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 motors or the generators
    • 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
    • B60K6/24—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 combustion engines
    • 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
    • B60K6/365—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 with the gears having orbital motion
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/62—Gearings having three or more central gears
    • F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/201—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with three sets of orbital gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2041—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with four engaging means
    • 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)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Structure Of Transmissions (AREA)

Abstract

The invention discloses a two-section type double-motor hybrid automatic transmission, which belongs to the technical field of machinery and vehicle transmission. An automatic transmission, comprising: two power motors; the two power motors are coupled and output through the three planet rows; the brake further comprises two clutches and two brakes; the first clutch can cut off the connection between the power input shaft and the internal combustion engine or the power source; when the first clutch is disconnected, the power input of the internal combustion engine or the power source is disconnected, and the transmission realizes pure electric drive under the state that the internal combustion engine or the power source is stopped. The continuous change adjustment of three power inputs is realized, so that the vehicle has the functions of energy output, energy recovery and engine halt and pure electric drive. The energy consumption of the engine is reduced.

Description

Two segmentation bi-motor hybrid automatic gearbox
Technical Field
The invention belongs to the technical field of machinery and vehicle transmission, and relates to a two-section type double-motor hybrid automatic transmission.
Background
A hydromechanical automatic transmission for a wheeled vehicle includes a planetary gear set, a clutch, a housing, and a hydraulic control system. The transmission may have a plurality of planetary rows, clutches, and internal rotating components.
Different speed ratios of the transmission are realized by controlling different clutches so as to adapt to the working speed ratio requirements of the transmission under different load conditions. The continuous change of the output speed can be realized through the coordination control of the internal combustion engine and the power motor, and the economical efficiency of the vehicle is improved.
The hybrid automatic transmission has a plurality of planetary rows while being capable of accepting an energy multiple input and capable of having an energy recovery function. The energy conversion device has the function of converting the energy of the internal combustion engine into electric energy to output. Under different running demand states of the vehicle, the vehicle can have six driving modes of internal combustion engine driving, internal combustion engine motor coupling driving, internal combustion engine driving one motor to generate power and the other motor to drive output, double-motor driving internal combustion engine stopping, single-motor driving internal combustion engine stopping, one motor to generate power and the other motor to drive output internal combustion engine stopping.
In the hybrid automatic transmission in the prior art, the structure of an input end is complex, and the energy consumption of an engine is large.
Disclosure of Invention
The invention provides a two-section type double-motor hybrid automatic transmission, which is a low-energy-consumption double-motor hybrid automatic speed change mechanism.
The technical scheme of the invention is that a two-section double-motor hybrid automatic transmission comprises: a transmission input shaft as a power input shaft through which power of the internal combustion engine or the power source is transmitted to the transmission; the transmission output shaft is used as a power output shaft, and the power of the transmission is transmitted to the corresponding power absorption device through the power output shaft; the two power motors are used for power input and power recovery; the two power motors are coupled and output through the three planet rows; the method is characterized in that: the brake further comprises two clutches and two brakes; the second clutch and the second brake are used for enabling the transmission to be in two gear states; the first clutch is connected between the power input shaft and the internal combustion engine or the power source, and the first brake is used for realizing the braking of the input end planet row; the first clutch can cut off the connection between the power input shaft and the internal combustion engine or the power source; when the first clutch is disconnected, the power input of the internal combustion engine or the power source is disconnected, and the transmission realizes pure electric drive under the state that the internal combustion engine or the power source is stopped.
A two-section double-motor hybrid automatic transmission comprises a first planet row, a second planet row, a third planet row, a first power motor, a second clutch and a second brake, wherein a second planet row frame is connected with a third planet row frame through the second clutch; the second planet row sun gear and the third planet row sun gear are connected and then connected to a second power motor, and the second power motor can transfer energy to the second planet row and the third planet row; the second planet row gear ring is connected with the first power motor and is used for receiving the energy of the first power motor or outputting the energy to the first motor to generate electricity; the third planet row frame is connected with the output shaft and used for realizing power output; the third planet row gear ring is connected with the box body through a second brake and used for realizing braking; the brake is characterized by also comprising a first clutch and a first brake; a first clutch is arranged between the sun gear of the first planetary row and the internal combustion engine or the power source, and the sun gear of the first planetary row can be connected or disconnected with the internal combustion engine or the power source through the first clutch; the sun gear of the first planet row can be connected to the box body through a first brake to realize braking and becomes a torque output fulcrum of the first power motor; the first planet row gear ring is connected with the first power motor and used for receiving the energy of the first power motor or outputting the energy to the first motor to generate electricity; the second planet row frame and the first planet row frame are connected together.
The invention has the following remarkable effects:
a first clutch and a first brake are added, so that the parallel transmission can convert electric energy into power to be output to an output shaft after the internal combustion engine stops working, and the engine stops and is purely electrically driven.
The special connection structure of the first motor and the first planet row can simplify the input end structure of the transmission.
Compared with the existing hybrid power transmission, the engine is connected to the first planetary gear through the clutch C1, and the clutch C1 and the brake B1 work alternately, so that the transmission can have the engine stopping energy-saving function, and the vehicle economy is improved; the brake B1 provides a moment pivot, so that the working speed range of the motor M1 can be increased, and the structural size of the motor M1 can be reduced. The continuous change adjustment of three power inputs is realized, so that the vehicle has the functions of energy output, energy recovery and engine halt and pure electric drive. The function of continuous output of vehicle drive in the engine stop state is realized, and the energy consumption of the engine is reduced.
Drawings
FIG. 1 is a schematic connection diagram of a two-stage dual motor hybrid automatic transmission;
100. the two-section double-motor hybrid automatic transmission is connected with a schematic diagram; 101. a transmission input shaft; 102. a transmission output shaft; 105. a first planet row; 106. a second planet row; 107. a third planet row; 108. a first power motor; 109. a second power motor; 112. a first planet row sun gear; 113. a first planet row frame; 114. a first planet row gear ring; 116. a second planet row sun gear; 117. a second planet carrier; 118. a second planet row gear ring; 120. a third planet row sun gear; 121. a third planet row frame; 122. a third planet row ring gear; C1. a first clutch; C2. a second clutch; B1. a first brake; B2. and a second brake. A is engine input and B is transmission output.
Detailed Description
The transmission proposed by the present invention will be described in detail below with reference to the accompanying drawings and embodiments.
The examples of the present invention described below are not intended to be exhaustive or to limit the invention to the precise forms disclosed in the following examples. Rather, the examples are chosen and described so that others skilled in the art may appreciate and understand the principles and implementations of the present invention.
The invention discloses a hybrid automatic transmission, which is an automatic transmission with three power inputs. The sun gear of the first planet row is connected with a power source of the internal combustion engine through a clutch; the sun gear of the first planet row can also be connected to the box body through a brake to realize braking and become a torque output fulcrum of the first motor; the second planet row frame and the first planet row frame are connected together and then connected with the third planet row frame through a clutch; the first planet row gear ring and the first motor are connected to receive the energy of the first motor or output the energy to the first motor to generate electricity; the second planet row sun gear and the third planet row sun gear are connected and then connected to a second power motor, and the second power motor can transmit energy to the second planet row and the third planet row; the second planet row gear ring is connected with the first power motor, and can receive the energy of the first motor or output the energy to the first motor to generate electricity; the third planet row frame is connected with the output shaft to complete the functions of energy confluence and power output; the third row of gear rings are connected with the box body through a brake to realize a braking function.
A transmission input shaft as a power input shaft through which power of the internal combustion engine or the power source is transmitted to the transmission; the transmission output shaft is used as a power output shaft, and the power of the transmission is transmitted to the corresponding power absorption device through the power output shaft; the two power motors have the functions of power input and power recovery; having three planet rows; the method is characterized in that:
comprises two clutches and two brakes; the power input shaft is connected to a component with an internal combustion engine power cut-off clutch, and the internal combustion engine power input is disconnected when the clutch is disconnected, so that the transmission realizes pure electric drive in a stop state;
and the two power motors are coupled and output through the planet row.
The two power motors and the power input and output are arranged on the same central line;
the first planet row ring gear and the second planet row ring gear are both connected to a first power motor.
The frame of the first planet row and the frame of the second planet row are connected with the frame of the third planet row through a clutch at the same time, and whether the clutch works or not does not influence the automatic transmission to have the driving function of a double-power motor.
The first power motor may be operable in a drive mode and a generate mode.
After the internal combustion engine is stopped through the operation of the brake connected with the first planet row sun gear, the electric driving mode and the energy recovery mode of the transmission do not influence the stop and energy conservation of the internal combustion engine.
As shown in fig. 1, a two-stage dual-motor hybrid automatic transmission of the present invention. Such as the hybrid automatic transmission 100 shown in fig. 1. It includes: a transmission input shaft 101 connected to the internal combustion engine; a transmission output shaft 102 for power take-off; a first planet row 105; a second planet row 106; a third planet row 107; a first power motor 108; a second power motor 109; clutch C1; clutch C2; a brake B1; brake B2.
In the example, the internal combustion engine is connected directly to the hybrid automatic transmission or through a torque converter to the hybrid automatic transmission input shaft 101; the input shaft is connected to the sun gear 112 of the first planetary row 105 through clutch C1, and when the engine is running, clutch C1 is engaged, and power is transmitted to the hybrid transmission through clutch C1, so that a part of the input mechanical energy can be transmitted to the power motor M1 and converted into electric energy. Or all the energy can pass through the sun gear 112 of the first planetary row 105, be converted by the first planetary row 105, be output to the frame 113 of the first planetary row 105, and be transmitted into the hybrid transmission; when the engine stops working, the clutch C1 is released, the brake B1 is engaged, and the first power motor can convert the electric energy into the mechanical energy, and the mechanical energy is output to the first planetary row 105 frame 113 through the conversion of the first planetary row 105 and is transmitted into the interior of the hybrid transmission. The power motor M1 can also absorb the mechanical energy of the first planetary gear train 105, and the mechanical energy is converted into electric energy through the gear ring 114 of the first planetary gear train 105 and is output to the electric power system by the power motor M1; when the engine is stopped and the clutch C1 and brake B1 are released, the first planetary row 105 does not transmit power and the power motor outputs power to the second planetary row 106 via the ring gear 118 of the second planetary row 106. Mechanical energy may also be absorbed by the ring gear 118 of the second planetary row 106 and converted into electrical energy. The engine is stopped in the process, so that energy is saved.
In the example, clutch C2 and brakes B1, B2 are disengaged, clutch C1 is engaged, and power motor M1 and power motor M2 cooperate to start the engine.
The power motor M1 and the power motor M2 have four working modes in total, wherein the power motor M1 and the power motor M2 output mechanical energy together, and the working modes are called DD modes; the power motor M1 outputs electric energy and the power motor M2 outputs mechanical energy, namely a GD mode; the mechanical energy output by the power motor M1 and the electric energy output by the power motor M2 are called as a DG mode; the power motor M1 and the power motor M2 jointly output electric energy, which is called GG mode;
in different driving modes of the double motors, the third planet row 107 of the transmission can be in two different output transmission ratios, so the transmission is called a two-stage hybrid automatic transmission; when the brake B2 and the clutch C2 are both released, the hybrid automatic transmission is in a neutral state; when the vehicle runs in a low speed state, the brake B2 is engaged, and the clutch C2 is released; when the vehicle runs at a high speed, the brake B2 is released, and the clutch C2 is combined;
in the example, the third planetary row 107 can be in two different output gear ratios in cooperation with an automatic transmission, and the first power motor 108 and the second power motor 109 can selectively work in four modes, namely DD, GD, DG and GG, so that eight states of the two-section double-motor hybrid transmission occur.
In the example, for convenience of explaining the different operating states of the two-stage hybrid automatic transmission, the K values of the first planetary row 105, the second planetary row 106, and the third planetary row 107 are exemplified as follows: 1.7, 2.5, 1.9; this results in a gear ratio of 2.9 for the third planet row sun gear 120 to the third planet row frame 121, with the sun gear 120 input being transferred to the frame 121 output to the output shaft 102, with the clutch B2 braked, for the third planet row 107. When the third planetary row 107, the clutch C2 and the brake B2 are disengaged, the first planetary row sun gear 112 and the first planetary row ring gear 114 have the same speed, the speed ratio of the third planetary row frame 121 to the third planetary row sun gear 120 is 1.0, that is, the three planetary rows rotate in a whole, the output speed of the hybrid automatic transmission is the same as the internal combustion engine, and the direct gear of the hydromechanical automatic transmission is equivalent.
In the example, for the purpose of illustrating the operation mode of the present invention, the engine operation range is set in the range of 600r/min to 2100r/min, and the operation rotation speed range of the motor is set in the reverse direction 16000r/min to the forward direction 16000 r/min. Due to the connection mode of the motor and the first planet row, the torque of the motor can be reduced, and the structural size of the motor can be reduced.
In the example, clutch C1 is engaged and clutch C2, brake B1, and brake B2 are disengaged, while the transmission is in a neutral state. The vehicle is stopped by the entire vehicle brake and the third planetary row 107 does not transmit torque. When power motor M2 is in the generate mode, the generating speed of power motor M2 affects the speed of the M1 motor. For example, when the engine works at 1500r/min, and the power generation speed of the power motor M2 is controlled to be 1470r/min in the forward direction, the power motor M1 works at 1600r/min in the forward direction; when the torque input to the input shaft by the internal combustion engine is operated at 1000Nm, the power motor M1 is operated in a power generation state of-229 Nm, the motor M2 is operated in a power generation state of-771 Nm, and the power generation power of the power motor M2 is about 3.1 times of the power generation power of the motor M1. In the neutral state, the M1 motor may be operated in the power generating state and the M2 motor may be operated in the driving state, or the M2 motor may be operated in the power generating state and the M1 motor may be operated in the driving state.
In the example, the clutch C1 and the brake B2 are engaged, the clutch C2 and the brake B1 are released, and the transmission is in a low gear state, and the rotating speed of a driving shaft of the vehicle is the same as that of an output shaft of the hybrid transmission. The third planet row 107 begins to transmit torque. For example, when the engine works at 1500r/min, the rotating speed of the output shaft is from 0 to 1500r/min, corresponding to the driving rotating speed of the M2 motor from 0 to 4350r/min, the power motor M2 is in a driving state in the range, and the power motor M1 gradually transits from a power generation state of 6563r/min in a forward direction to a driving state of 8119r/min in a reverse direction.
In the example, the clutch C1 and the clutch C2 are engaged, the brake B1 and the brake B2 are released, and the transmission is in a high gear state, and the rotating speed of a driving shaft of the vehicle is the same as that of an output shaft of the hybrid transmission. The third planet row 107 does not transmit torque. For example, when the engine works at 1500r/min, the rotating speed of the output shaft is from 1500r/min to 3500r/min, which corresponds to the driving rotating speed of the M2 motor from 1500 to 559r/min, the power motor M2 is gradually switched to the power generation state from the driving state in the range, and the power motor M1 is from 1500r/min to 4676 r/min.
In the example, the brake B1 and the brake B2 are engaged, the clutch C1 and the clutch C2 are disengaged, and the transmission is in a low gear state, and the rotating speed of a driving shaft of the vehicle is the same as that of an output shaft of the hybrid transmission. The third planet row 107 transmits torque. For example, the engine is in a stop state at this time, and the transmission is in a pure electric state. The rotating speed of the output shaft is from 0r/min to 1500r/min, the driving rotating speed of the M2 motor is from 0 to 4350r/min, the power motor M2 can be in a driving state or a power generation state in the range, the power motor M1 can be from 0r/min to a reverse direction 14681r/min, and the power motor M1 can be in a driving state or a power generation state in the range.
Due to the design of the clutch C1 and the brake B1, the brake B1 is combined, the clutch C1 is released, the engine is in a stop state, and the energy consumption of the engine is reduced.
In the example, the brake B1 and the clutch C2 are combined, the clutch C1 and the brake B2 are released, the transmission is in a high gear state, and the rotating speed of a driving shaft of the vehicle is the same as that of an output shaft of the hybrid transmission. The third planet row 107 does not transmit torque. For example, the engine is in a stop state at this time, and the transmission is in a pure electric state. The rotating speed of the output shaft is from 1500r/min to 3500r/min, the driving rotating speed of the M2 motor is from reverse 706 to reverse 1647r/min, the power motor M2 can be in a driving state or a power generation state in the range, the power motor M1 can be from 2382r/min to 5559r/min, and the power motor M1 can be in a driving state or a power generation state in the range.
Similarly, due to the design of the clutch C1 and the brake B1, the brake B1 is combined, the clutch C1 is released, the engine is in a stop state, and the energy consumption of the engine is reduced.
While the foregoing has expressed the principles of the invention, it is not limited to the examples given. This application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains.

Claims (8)

1. A two-stage dual motor hybrid automatic transmission comprising:
a transmission input shaft as a power input shaft through which power of the internal combustion engine or the power source is transmitted to the transmission;
the transmission output shaft is used as a power output shaft, and the power of the transmission is transmitted to the corresponding power absorption device through the power output shaft;
the two power motors are used for power input and power recovery;
the two power motors are coupled and output through the three planet rows;
the method is characterized in that:
the brake further comprises two clutches and two brakes; the second clutch and the second brake are used for enabling the transmission to be in two gear states;
the first clutch is connected between the sun gear of the input end planet row and the internal combustion engine or the power source, and the first brake is used for realizing the braking of the input end planet row;
the first clutch can cut off the connection between the sun gear of the input end planet row and the internal combustion engine or the power source; when the first clutch is disconnected, the power input of the internal combustion engine or the power source is disconnected, and the transmission realizes pure electric drive under the stop state of the internal combustion engine or the power source;
the three planet rows are respectively an input end planet row, a second planet row and a third planet row; the two power motors are respectively a first power motor and a second power motor;
one end of the power input shaft is connected with the first clutch, and the other end of the power input shaft can be connected with a sun gear of the input end planet row; the sun gear of the input end planet row can be connected to the box body through a first brake;
the input end planet row gear ring is connected with a first power motor;
the input end planet row frame and the second planet row frame are connected together;
the second planet row frame is connected with the third planet row frame through a second clutch;
the second planet row sun gear and the third planet row sun gear are connected and then connected to a second power motor, and the second power motor can transfer energy to the second planet row and the third planet row;
the second planet row gear ring is connected with the first power motor, and the third planet row frame is connected with the output shaft; and the third planet row gear ring is connected with the box body through a second brake.
2. The two-stage dual motor hybrid automatic transmission of claim 1, wherein the input planetary row sun gear is connected to the case through the first brake while the first clutch power disconnects the internal combustion engine from the input planetary row sun gear.
3. The two-stage dual-motor hybrid automatic transmission of claim 1, wherein the input planet row ring gear, the second planet row ring gear and the first power motor are connected for receiving energy of the first power motor or outputting energy to the first power motor to generate electricity.
4. A two-section dual-motor hybrid automatic transmission comprises a first planet row, a second planet row, a third planet row, a first power motor, a second clutch and a second brake,
the second planet row frame is connected with the third planet row frame through a second clutch;
the second planet row sun gear and the third planet row sun gear are connected and then connected to a second power motor, and the second power motor can transfer energy to the second planet row and the third planet row;
the second planet row gear ring is connected with the first power motor and is used for receiving the energy of the first power motor or outputting the energy to the first motor to generate electricity;
the third planet row frame is connected with the output shaft and used for realizing power output; the third planet row gear ring is connected with the box body through a second brake and used for realizing braking;
the brake is characterized by also comprising a first clutch and a first brake;
a first clutch is arranged between the sun gear of the first planetary row and the internal combustion engine or the power source, and the sun gear of the first planetary row can be connected or disconnected with the internal combustion engine or the power source through the first clutch; the sun gear of the first planet row can be connected to the box body through a first brake to realize braking and becomes a torque output fulcrum of the first power motor;
the first planet row gear ring is connected with the first power motor and used for receiving the energy of the first power motor or outputting the energy to the first motor to generate electricity;
the second planet row frame and the first planet row frame are connected together.
5. The two-stage, dual motor hybrid automatic transmission of claim 1, wherein the first and second planet row frames are both connected to a countershaft.
6. The two-stage dual-motor hybrid automatic transmission of claim 1, wherein the first power motor, the output shaft of the first power motor and the axis of the transmission power input and output are arranged on the same center line.
7. The two-stage dual motor hybrid automatic transmission of claim 1, wherein the first planetary row frame and the second planetary row frame are simultaneously connected to the third planetary row frame through a second clutch, and the operation or non-operation of the second clutch does not affect the driving function of the automatic transmission.
8. The hybrid automatic transmission of claim 1, wherein the internal combustion engine is off after a first brake connected to the first planetary gear set sun gear is disengaged, and the transmission is electrically-only driven thereafter.
CN202010220324.1A 2020-03-25 2020-03-25 Two segmentation bi-motor hybrid automatic gearbox Active CN111731090B (en)

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