CN110103696B - Novel hybrid electric vehicle transmission system - Google Patents

Novel hybrid electric vehicle transmission system Download PDF

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Publication number
CN110103696B
CN110103696B CN201910358626.2A CN201910358626A CN110103696B CN 110103696 B CN110103696 B CN 110103696B CN 201910358626 A CN201910358626 A CN 201910358626A CN 110103696 B CN110103696 B CN 110103696B
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China
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module
motor
control module
engine
vehicle
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CN201910358626.2A
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CN110103696A (en
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张宝锋
董雅文
焦航
张红飞
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Xian University of Technology
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Xian University of Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/22Arrangement 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
    • B60K6/26Arrangement 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H02N11/002Generators

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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 discloses a novel hybrid electric vehicle transmission system, which comprises a traditional vehicle transmission system module, wherein the traditional vehicle transmission system module is formed by sequentially connecting an engine, a clutch, a transmission and a differential mechanism, the traditional vehicle transmission system module provides support and guarantee for a vehicle, the traditional vehicle transmission system module is respectively connected with a temperature difference power generation module and a system control module, the temperature difference power generation module and the system control module are mutually communicated, a power supply control module is also arranged between the temperature difference power generation module and the system control module, the power supply control module is also connected with a motor driving module, and the motor driving module is also connected with the system control module; the invention solves the problems of complex structure, low utilization rate of the heat efficiency of the engine, serious waste heat emission pollution and the like of the mechanical connection mode of the transmission system of the traditional hybrid electric vehicle.

Description

Novel hybrid electric vehicle transmission system
Technical Field
The invention belongs to the technical field of hybrid electric vehicle transmission, and particularly relates to a novel hybrid electric vehicle transmission system.
Background
With the continuous innovation and development of the automobile transmission system, the spirit of the automobile not only lies in the bombing engine of the automobile, but also has innovative breakthrough in improving the comprehensive performance of the automobile, improving the energy utilization rate and reducing the environmental pollution by the non-mechanical transmission arrangement. The traditional automobile transmission form is mostly a mechanical transmission system, a longer transmission shaft is needed, the whole automobile mass is increased, and the efficiency of the automobile transmission system is influenced to a great extent; in order to ensure comfortable experience of a user, high-level manpower and material resources are required to be equipped in the aspects of machining precision, errors and the like of mechanical parts, and good dynamic property and economy are lacked. In order to solve the problems and meet the requirements of sustainable development of human beings, the existing oil-electricity hybrid electric vehicle as an improved vehicle type of the traditional fuel oil vehicle consists of an engine and a motor, the engine consumes a power battery by consuming fuel oil to pull the motor, and the engine can be driven together or independently on different roads. However, since the hybrid vehicle involves the conventional engine drive and the motor drive, the structure is often complex, the occupied space is large, the arrangement is difficult, the effect of saving energy is not achieved when the vehicle runs at a high speed for a long distance, the expensive cost is only to discharge the heat which is generated when the engine works and cannot be used for doing work in the form of waste heat, and the discharged waste gas pollutes the environment, but causes pressure on environmental management. The U.S. general automobile research company has shown that fuel-powered vehicles produce only about 40% of their energy utilization, with the remainder being discharged to the atmosphere as waste heat. Therefore, the transmission system of the existing hybrid electric vehicle is improved, an automobile transmission system design scheme which is simple in structure, reduces exhaust emission, improves energy utilization rate and improves the overall economy and dynamic performance of the hybrid electric vehicle is innovated, and the design scheme not only has positive practical significance, but also has strong necessity.
Disclosure of Invention
The invention aims to provide a novel hybrid electric vehicle transmission system, which solves the problems of complex structure, low utilization rate of engine heat efficiency, serious waste heat emission pollution and the like of the existing hybrid electric vehicle transmission system in a mechanical connection mode.
The technical scheme adopted by the invention is that the novel hybrid electric vehicle transmission system comprises a traditional vehicle transmission system module, wherein the traditional vehicle transmission system module is formed by sequentially connecting an engine, a clutch, a transmission and a differential mechanism, the traditional vehicle transmission system module provides support and guarantee for a vehicle, the traditional vehicle transmission system module is respectively connected with a temperature difference power generation module and a system control module, the temperature difference power generation module is communicated with the system control module, a power supply control module is also arranged between the temperature difference power generation module and the system control module, the power supply control module is also connected with a motor driving module, and the motor driving module is also connected with the system control module;
the thermoelectric power generation module comprises thermoelectric power generation sheets which are arranged between an engine water tank and a cold water tank which is newly added on a vehicle body and distributed in a multilayer manner, a heat conduction material layer is arranged between every two adjacent thermoelectric power generation sheets, a hot water guide pipe and a cold water guide pipe are also arranged on the outer side of each thermoelectric power generation sheet, the hot water guide pipe is distributed around the side of the layered structure of the thermoelectric power generation sheets close to the engine water tank, the two ends of each hot water guide pipe are respectively connected with a water inlet and a water outlet of the engine water tank, a hot end water pump is arranged between each hot water guide pipe and the engine water tank, each hot water guide pipe is further coiled on a spiral heat absorption device arranged on an exhaust pipe in a parallel connection manner, the cold water guide pipe is distributed around the side of the layered structure of the thermoelectric power generation sheets close to the cold water tank, the two ends of each cold water guide pipe are respectively connected with the water inlet and the water outlet of the cold water tank, and a cold end water pump is arranged between each cold water guide pipe and the cold water tank, the thermoelectric generation piece is still connected with power control module.
The present invention is also characterized in that,
the power control module comprises a storage battery, a rectification voltage-regulating module is arranged between the storage battery and the temperature difference power generation piece in the temperature difference power generation module, the power control module is used for storing electric energy generated by the temperature difference power generation piece in the storage battery after being processed by the rectification voltage-regulating module, and meanwhile, when the motor works, the electric energy of the storage battery is converted into current and voltage meeting the actual requirement of the motor to drive the motor to run. The motor driving module comprises a motor C, the motor C is connected with a differential mechanism B, two automobile rear wheels are controlled through the differential mechanism B, namely one motor C is adopted by the two automobile rear wheels, the differential mechanism B plays a role in adjusting the distribution of rotating speed and matching the driving wheel C and the driving wheel D in speed per hour between the two rear wheels, an engine, a clutch and a transmission are connected with the driving wheel C and the driving wheel D of the automobile through the differential mechanism A, and the driving wheel C and the driving wheel D are automatically adjusted by the differential mechanism A to match the rotating speed of the left wheel and the right wheel.
The motor driving module comprises two independent motors A and B, left and right wheels of an automobile rear axle are respectively driven by the motors A and B, the motor A is placed at the left rear wheel, the motor B is placed at the right rear wheel, the automobile body is provided with a system control module for controlling coaxial double-motor speed matching, the engine, the clutch and the transmission are connected with the driving wheel A and the driving wheel B through a differential mechanism A, and the driving wheel A and the driving wheel B are automatically adjusted by the differential mechanism A to match the rotating speeds of the left and right wheels.
The system control module completes the speed matching of two wheels of a front axle driven by an engine and two wheels of a rear axle driven by a motor, if the transmission system layout scheme is suitable for a multi-axle automobile, the rotational speed matching of different driving wheels of each axle is also completed by the system control module, the system control module comprises an M18 displacement sensor arranged at the joint between an automobile chassis and an axle, the load condition of the automobile is obtained through the change of displacement data of the displacement sensor, an HCNJ-101 dynamic torque sensor is used for measuring the torque and the rotational speed of a driving wheel, a JD6A electromagnetic speed regulation motor control device is used for controlling the rotational speed of the motor when the motor is driven, and the M18 displacement sensor, the HCNJ-101 dynamic torque sensor and the JD6A electromagnetic speed regulation motor control device are all controlled by a control type 80C51 singlechip vehicle-mounted terminal of an MCS-51 series, the system control module determines which driving mode is adopted, is connected with a center console of the vehicle and can directly extract the water temperature sensing temperature of the vehicle, and if the engine is short in starting time and low in water temperature, the temperature difference power generation module is not started, so that the two water pumps do not work, and the normal operation of the engine is ensured; when the water temperature is higher, the temperature difference starting power generation module works normally, and the two water pumps start to work.
The thermoelectric generation module is arranged under a trunk and a seat of the vehicle, and in the middle of a door and at a hood.
The novel hybrid electric vehicle transmission system has the beneficial effects that the waste heat generated by the engine during working is utilized by the thermoelectric generation piece, so that the waste heat is converted into electric energy which is stored in the storage battery to provide electric power guarantee for the motor to drive the vehicle; the secondary utilization of the waste heat of the engine and the reasonable selection of the three working modes of the engine independent drive, the motor independent drive and the engine and motor mixed drive can effectively reduce the oil consumption of the engine, greatly reduce the exhaust emission of the engine, save energy, reduce emission and reduce the influence of the automobile on the environment. The scheme of double motors (multiple shafts) for realizing independent motor drive of the rear wheels greatly simplifies the structure of the power transmission system of the conventional hybrid electric vehicle, omits mechanical connection links such as a transfer case, a differential mechanism and the like commonly used in the power transmission of double shafts and multiple shafts of vehicles, ensures that the power transmission system has a compact structure and simpler arrangement mode, reduces the part abrasion in the mechanical transmission due to the reduction of the number of mechanical parts, improves the transmission efficiency of the power and the power of the vehicle, indirectly improves the reserve power of the vehicle due to the utilization of waste heat resources, and increases the adaptability of the vehicle to complex working conditions.
Drawings
FIG. 1 is a schematic diagram of the design scheme of a novel hybrid electric vehicle transmission system (single motor drive) according to the invention;
FIG. 2 is a schematic diagram of the design of a novel hybrid vehicle transmission system (dual motor drive) according to the present invention;
FIG. 3 is a schematic structural layout of a novel hybrid electric vehicle transmission system (single motor drive) according to the present invention;
fig. 4 is a schematic structural layout diagram of a novel hybrid electric vehicle transmission system (dual-motor drive) of the invention.
In the figure, 1, an engine, 2, a clutch, 3, a transmission, 4, an HCNJ-101 dynamic torque sensor, 5, a driving wheel A, a 6.80C51 single chip microcomputer, 7, a JD6A electromagnetic speed regulation motor control device, 8, a motor A, 9, a cold water tank, 10, a cold water guide pipe, 11, a thermoelectric generation sheet, 12 a hot water guide pipe, 13, a spiral heat absorption device, 14, an exhaust pipe, 15, motors B and 16, a storage battery, 17, a rectification pressure regulation module, 18, an M18 displacement sensor, 19, a differential A, 20, a driving wheel B, 21, a driving wheel C and 22, a differential B, 23, a cold end water pump, 24, a thermoelectric generation module, 25, a hot end water pump, 26, a motor C and 27 and a driving wheel D are arranged.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 to 4 show a novel hybrid vehicle transmission system of the present invention, wherein fig. 1 is a schematic diagram of a design scheme of a novel hybrid vehicle transmission system (single motor drive) of the present invention, fig. 2 is a schematic diagram of a design scheme of a novel hybrid vehicle transmission system (dual motor drive) of the present invention, fig. 3 is a schematic diagram of a structural layout of a novel hybrid vehicle transmission system (single motor drive) of the present invention, fig. 4 is a schematic diagram of a structural layout of a novel hybrid vehicle transmission system (dual motor drive) of the present invention, the present invention includes a conventional vehicle transmission system module, the conventional vehicle transmission system module is formed by connecting an engine 1, a clutch 2, a transmission 3 and a differential in sequence, the conventional vehicle transmission system module provides support and guarantee for a vehicle, the conventional vehicle transmission system module is connected with a thermoelectric generation module 24 and a system control module respectively, the temperature difference power generation module 24 is communicated with the system control module, a power supply control module is also arranged between the temperature difference power generation module 24 and the system control module, the power supply control module is also connected with a motor driving module, and the motor driving module is also connected with the system control module;
the thermoelectric generation module 24 comprises thermoelectric generation pieces 11 which are arranged between an engine water tank and a cold water tank 9 newly added to a vehicle body in a multilayer distribution manner, a heat conduction material layer is arranged between every two adjacent thermoelectric generation pieces 11, a hot water guide pipe 12 and a cold water guide pipe 10 are further arranged on the outer side of each thermoelectric generation piece 11, the hot water guide pipe 12 is circumferentially distributed on the side of a layered structure of the thermoelectric generation pieces close to the engine water tank, the two ends of the hot water guide pipe 12 are respectively connected with a water inlet and a water outlet of the engine water tank, a hot end water pump 25 is arranged between the hot water guide pipe 12 and the engine water tank, the hot water guide pipe 12 is further coiled on a spiral heat absorption device 13 arranged on an exhaust pipe 14 in a parallel connection manner, the cold water guide pipe 10 is circumferentially distributed on the side of the layered structure of the thermoelectric generation pieces close to the cold water tank 9, and the two ends of the cold water guide pipe 10 are respectively connected with the water inlet and the water outlet of the cold water tank 9, a cold end water pump 23 is arranged between the cold water guide pipe 12 and the cold water tank 9, and the thermoelectric generation piece 11 is also connected with the power supply control module.
The system control module comprises an M18 displacement sensor 18 arranged at the joint between a vehicle chassis and an axle, the load condition of the vehicle is obtained through the change of displacement data of the M18 displacement sensor 18, an HCNJ-101 dynamic torque sensor 4 is used for measuring the torque and the rotating speed of a driving wheel, a JD6A electromagnetic speed regulation motor control device 7 is used for controlling the rotating speed of a motor during the driving of the motor, and the M18 displacement sensor 18, the HCNJ-101 dynamic torque sensor 4 and the JD6A electromagnetic speed regulation motor control device 7 are all controlled by a single chip microcomputer MCS-51 series control type 80C51 single chip microcomputer 6 vehicle-mounted terminal.
The power control module comprises a storage battery 16, a rectification voltage-regulating module 17 is arranged between the storage battery 16 and the thermoelectric generation piece 11 in the thermoelectric generation module 24, the power control module is used for storing electric energy generated by the thermoelectric generation piece 11 in the storage battery 16 after being processed by the rectification voltage-regulating module 17, and meanwhile, when the motor works, the electric energy of the storage battery is converted into current and voltage meeting the actual requirement of the motor and is used for driving the motor to run. The invention adopts the thermoelectric effect of the semiconductor module to convert waste heat into electric energy for utilizing the waste heat source of the automobile. Based on the principle of thermoelectric generation, the hot end and the cold end of the thermoelectric generation piece need to have temperature difference as much as possible to ensure and improve the generation efficiency; in the scheme of the invention, the hot end of the temperature difference power generation sheet is connected with the water circulation system of the engine through a water pipe and the like, and the temperature of the hot end is mainly dependent on the working temperature of the engine and is not influenced by external factors, so that the temperature of the hot end cannot be changed. The cold end is close to the ambient temperature as much as possible under the condition of no forced cooling measure, so that the temperature difference between the cold end and the hot end of the thermoelectric power generation piece is ensured to be as large as possible. Therefore, in the design scheme of the thermoelectric power generation module, the condenser of the existing automobile is creatively connected with the cold end water tank, so that the consistency of the temperature of the cold end of the thermoelectric power generation sheet and the ambient temperature can be ensured as far as possible without changing the structure of the existing automobile, and the efficiency of thermoelectric power generation is ensured in the structural form.
The transmission scheme of the automobile transmission system provided by the invention is explained by taking a household front-drive sedan as a main transmission system arrangement mode, and can be realized by adjusting other automobile arrangement modes on the basis of the transmission scheme idea.
As shown in fig. 3, when the vehicle is driven by a single motor, the motor drive module includes a motor C26, the motor C26 is connected with a differential B22, two rear wheels of the vehicle are controlled by the differential B22, namely, one motor C26 is used for the two rear wheels of the vehicle, and the differential B22 plays a role in adjusting the distribution of the rotating speed between the two rear wheels and matching the speeds of the driving wheels C21 and the driving wheel D27. The engine 1, the clutch 2 and the transmission 3 are connected with a driving wheel C21 and a driving wheel D27 of an automobile through a differential A19, and the driving wheel C21 and the driving wheel D27 are automatically adjusted to match the rotating speeds of the left wheel and the right wheel by a differential A19.
As shown in fig. 4, when the vehicle is driven by two motors, the motor driving module comprises two independent motors A8 and B15, the left and right wheels of the rear axle of the vehicle are driven by the motor A8 and the motor B15 respectively, the motor A8 is placed at the left rear wheel, the motor B15 is placed at the right rear wheel, and the vehicle body is provided with a system control module for controlling the speed matching of the two coaxial motors. The engine 1, the clutch 2 and the transmission 3 are connected with a driving wheel A5 and a driving wheel B20 of an automobile through a differential A19, and the driving wheel A5 and the driving wheel B20 are automatically adjusted to match the rotating speeds of the left wheel and the right wheel by a differential A19.
The system control module comprises an M18 displacement sensor 18 arranged at the joint between a vehicle chassis and an axle, the load condition of the vehicle is obtained through the change of displacement data of the M18 displacement sensor 18, an HCNJ-101 dynamic torque sensor 4 is used for measuring the torque and the rotating speed of a driving wheel, a JD6A electromagnetic speed regulation motor control device 7 is used for controlling the rotating speed of the motor when the motor is driven, the M18 displacement sensor 18, the HCNJ-101 dynamic torque sensor 4 and the JD6A electromagnetic speed regulation motor control device 7 are controlled by a single chip microcomputer MCS-51 series control type 80C51 single chip microcomputer 6 vehicle-mounted terminal, the system control module determines which driving mode is adopted, and meanwhile, the system control module is connected with a central console of the vehicle, the sensing temperature of the water temperature of the vehicle can be directly extracted, if the starting time of the engine is short and the water temperature is low, the temperature difference power generation module 24 is not started, the cold-end water pump 23 and the hot-end water pump 25 do not work to ensure the normal operation of the engine; when the water temperature is higher, the temperature difference starting module 22 works normally, which indicates that the two cold-end water pumps 23 and the hot-end water pump 25 also start to work.
In the embodiment of fig. 3 and 4, the speed matching of the two wheels of the front axle driven by the engine and the two wheels of the rear axle driven by the electric motor is performed by the system control module. If the transmission system layout scheme is suitable for multi-shaft automobiles, the matching of the rotating speeds of different driving wheels of each shaft is also completed by the system control module.
The thermoelectric generation module 24 is disposed under the trunk and the seat of the vehicle and at the door center and the hood.
The novel hybrid power automobile transmission system can be used for adjusting the supporting mode of a multi-wheel drive automobile driving wheel suspension by additionally arranging the temperature difference power generation module 24 on the basis of not changing the existing automobile transmission system, setting all wheels of an automobile as driving wheels, and driving other wheels (rear axles) on the automobile by electric power except engine driving wheels (front axles), namely arranging motor driving modules on the other wheels; the whole vehicle power source mainly depends on the vehicle-mounted generator and the temperature difference power generation module 24, the power generated by the generator and the temperature difference power generation is processed by the power supply control module and then stored in the storage battery 16, and the motor driving module obtains power from the storage battery 16 through the power supply control module and then drives the motor to work to drive the vehicle to move; the system control module mainly comprises a vehicle load and an engine driving wheel torque by detecting vehicle running state parameters, and determines which working mode is adopted by the vehicle by detecting the vehicle running state, wherein the vehicle working mode mainly comprises the following modes: firstly, an engine is driven independently; the motor is driven independently; and the engine and the motor are driven in a hybrid mode. Meanwhile, the system controller also detects the water temperature condition of the engine 1 and controls heat flow guiding in real time, and if the starting time of the engine 1 is short and the temperature of the engine 1 is low, the temperature difference power generation module 24 is not started so as to ensure the normal work of the engine 1; utilize the external waste heat source of engine 1 emission through thermoelectric generation, can effectively improve the thermal efficiency of engine, improve the utilization ratio of fuel, the use and the switching of mixing of several kinds of working methods of vehicle, improvement vehicle work efficiency that can be abundant, simultaneously because this kind of "dispersion drive, the novel power hybrid mode of centralized control", mechanical connecting device transfer case, differential mechanism etc. of having saved extensive application on the vehicle in vehicle transmission system, make automobile system power and energy transmission and utilization efficiency very high, can obviously improve vehicle fuel utilization ratio, and be favorable to reducing the emission of tail gas pollutant.
The operating principle of the thermoelectric generation module 24 in the invention is as follows:
the thermoelectric generation pieces 11 are arranged in multiple layers, and meanwhile, the annular water pipe is also surrounded by the cold water guide pipe 10 and the hot water guide pipe 12 in multiple layers, so that the sufficient power generation capacity of the thermoelectric generation pieces is ensured. Cold water flows out from one surface of the cold water tank 9 along the outlet of the cold water guide pipe 10 to form a multi-layer annular flow to form the cold end of the thermoelectric generation module 24, forms a backflow through the cold end water pump 23, and flows into the cold water tank 9 along the inlet on the same surface of the water tank. The water tank of the engine 1 is used as a hot end, the hot water guide pipe 12 is connected with one side of the water tank outlet of the engine 1, the hot water guide pipe 12 is distributed in parallel, one path of hot water flows to the temperature difference power generation module 24, the other path of hot water absorbs tail gas waste heat along the spiral heat absorption device 13 arranged on the exhaust pipe 14, then enters the temperature difference power generation module 24 through the hot end water pump 25 at the position of the hot water guide pipe 12 to jointly participate in power generation, and flows into the water inlet of the engine 1 along with the flow of the hot water guide pipe 12 (low temperature), and then the circulation of hot and cold water of the engine is completed. The thermoelectric generation module 24 can be disposed in an idle position of the vehicle (a trunk of the vehicle, under a seat, even an interlayer of a vehicle cover, etc.) where it will be disposed only in the trunk for a structural layout explanation, through the thermoelectric generation module 24, converting waste heat into electric energy by the seebeck effect to be stored in the battery 16 for use by the motor B15 and the motor C26.
The working state of the automobile with a single motor is as follows:
the system control module plays a main control role, power generated by the engine 1 is used for driving wheels, waste heat generated after work is done enters the thermoelectric generation piece 11 through the hot water guide pipe 12, electric energy is generated by utilizing the Seebeck effect, and the electric energy is stored in the storage battery 16 through the power supply control module and is used by vehicle-mounted electric appliances (air conditioners, audios and the like) and the motor C26. When the automobile accelerates and climbs a slope, the system controller controls the engine 1 and the motor C26 to simultaneously provide power for the transmission mechanism; when the automobile speed reaches the cruising speed, the system control module controls the engine 1 to drive the whole automobile, the generated waste heat can be used for temperature difference power generation, and the electric energy is stored in the storage battery 16; when the automobile starts, the electric motor C26 is used for driving the automobile, so that strong power can be generated instantly, the automobile can enjoy stronger starting and accelerating, meanwhile, higher-level fuel economy and transmission power performance can be realized, the electric motor can be used for driving the automobile on a road section with traffic jam, and fuel is saved.
The working state of the automobile with double motors:
the principle is the same as that of a single motor, the thermoelectric power generation can collect waste heat to generate electric energy, and the thermoelectric power generation is different in that the left wheel and the right wheel of a rear axle are respectively driven by an independent motor A8 and an independent motor B15 (with a speed-changing torque-changing device), and a system control module is arranged to control the speed matching of coaxial double motors, so that a differential is omitted, and the output efficiency is improved. In any case, the system control module can realize the unified control of power and power distribution for the coordination of the double-motor differential speed and the steering of the front driving wheels.
For a multi-shaft automobile, besides driving wheels by an engine, the motor driving of the automobile can adopt a connection mode of a single motor or a connection mode of double motors.
The design scheme of the hybrid power transmission system can effectively improve and solve the technical problems of the hybrid power automobile, can improve the utilization rate of hot oil of the automobile on the basis of improving the power and the energy transmission efficiency of the hybrid power automobile transmission system, reduces the oil consumption of the automobile and reduces the emission of pollutants in the tail gas of the automobile.

Claims (1)

1. A novel hybrid electric vehicle transmission system is characterized by comprising a traditional vehicle transmission system module, wherein the traditional vehicle transmission system module is formed by sequentially connecting an engine (1), a clutch (2), a transmission (3) and a differential mechanism, the traditional vehicle transmission system module provides support and guarantee for a vehicle, the traditional vehicle transmission system module is respectively connected with a temperature difference power generation module (24) and a system control module, the temperature difference power generation module (24) and the system control module are mutually communicated, a power supply control module is also arranged between the temperature difference power generation module (24) and the system control module, the power supply control module is also connected with a motor driving module, and the motor driving module is also connected with the system control module; the thermoelectric generation module (24) comprises thermoelectric generation pieces (11) which are arranged between an engine water tank and a cold water tank (9) newly added to a vehicle body in a multilayer distribution manner, a heat conduction material layer is arranged between every two adjacent thermoelectric generation pieces (11), a hot water guide pipe (12) and a cold water guide pipe (10) are further arranged on the outer side of each thermoelectric generation piece (11), the hot water guide pipe (12) is distributed on the side of the layered structure of the thermoelectric generation pieces close to the engine water tank in a surrounding manner, the two ends of the hot water guide pipe (12) are respectively connected with a water inlet and a water outlet of the engine water tank, a hot end water pump (25) is arranged between the hot water guide pipe (12) and the engine water tank, the hot water guide pipe (12) is further wound on a spiral heat absorbing device (13) arranged on an exhaust pipe (14) in a parallel manner, the cold water guide pipe (10) is distributed on the side of the layered structure of the thermoelectric generation pieces close to the cold water tank (9) in a surrounding manner, and the water inlet and the delivery port of cold water tank (9) are connected respectively to cold water stand pipe (10) both ends, are provided with cold junction water pump (23) between cold water stand pipe (10) and cold water tank (9), and thermoelectric generation piece (11) still are connected with power control module, power control module includes battery (16), is provided with rectification voltage regulating module (17) between thermoelectric generation piece (11) in battery (16) and thermoelectric generation module (24), and power control module's effect is handled the electric energy that produces thermoelectric generation piece (11) and is stored in battery (16) after rectification voltage regulating module (17), and simultaneously when the motor is worked, convert the electric energy of battery into the electric current and the voltage that satisfy the motor actual demand and be used for the driving motor operation, motor drive module includes motor C (26), and differential mechanism B (22) is connected to motor C (26), the two rear wheels of the automobile are controlled through a differential B (22), namely, the two rear wheels of the automobile adopt an electric motor C (26), the differential B (22) has the functions of regulating the distribution of the rotating speed and matching the driving wheel C (21) and the speed per hour of the driving wheel D (27), the engine (1), the clutch (2) and the transmission (3) are connected with the driving wheel C (21) and the driving wheel D (27) of the automobile through a differential A (19), the driving wheel C (21) and the driving wheel D (27) are automatically regulated by the differential A (19) to match the rotating speed of the left and right wheels of the driving wheel, or the motor driving module comprises two independent electric motors A (8) and an electric motor B (15), the left and right wheels of a rear axle of the automobile are respectively driven by the electric motor A (8) and the electric motor B (15), the electric motor A (8) is arranged at the rear wheel at the left side, the electric motor B (15) is arranged at the rear wheel at the right side, the vehicle body is provided with a system control module for controlling coaxial double-motor speed matching, an engine (1), a clutch (2) and a transmission (3) are connected with a driving wheel A (5) and a driving wheel B (20) of an automobile through a differential A (19), the driving wheel A (5) and the driving wheel B (20) automatically adjust the rotating speed matching of left and right wheels of the automobile through the differential A (19), the system control module completes the speed matching of two front axle wheels driven by the engine and two rear axle wheels driven by a motor, if the transmission system arrangement scheme is suitable for a multi-axle automobile, the rotating speed matching of different driving wheels of each axle is also completed by the system control module, the system control module learns the load condition of the automobile through the change of displacement data of an M18 displacement sensor, and an HCNJ-101 dynamic torque sensor (4) is used for measuring the torque and the rotating speed of the driving wheels, the JD6A electromagnetic speed regulation motor control device (7) is used for controlling the rotating speed of a motor when the motor is driven, the M18 displacement sensor (18), the HCNJ-101 dynamic torque sensor (4) and the JD6A electromagnetic speed regulation motor control device (7) are controlled by a vehicle-mounted terminal of a control type 80C51 singlechip (6) of a singlechip MCS-51 series, and then the system control module determines which driving mode is adopted, and meanwhile, the system control module is connected with a central console of a vehicle to realize communication, so that the water temperature sensing temperature of the vehicle can be directly extracted, if the starting time of the engine is short and the water temperature is low, the temperature difference power generation module (24) is not started, the cold-end water pump (23) and the hot-end water pump (25) do not work, and the normal operation of the engine is ensured; when the water temperature is higher, the temperature difference starting module (22) works normally, and the two cold end water pumps (23) and the hot end water pump (25) also start to work, and the temperature difference power generation module (24) is characterized in that the temperature difference power generation module is arranged below a trunk and a seat of a vehicle, in the middle of a vehicle door and at a hood.
CN201910358626.2A 2019-04-30 2019-04-30 Novel hybrid electric vehicle transmission system Expired - Fee Related CN110103696B (en)

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CN202889255U (en) * 2012-06-29 2013-04-17 苟仲武 Energy recovering and supplying system of hybrid electric vehicle
US9842978B1 (en) * 2016-09-21 2017-12-12 GM Global Technology Operations LLC Vehicle including thermoelectric generator
CN108482103A (en) * 2018-03-07 2018-09-04 武汉理工大学 A kind of Two axle drive hybrid power system and driving method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1701209A (en) * 2003-04-17 2005-11-23 丰田自动车株式会社 Energy recovery system
CN201900980U (en) * 2010-11-10 2011-07-20 胡枝清 Novel electric sports car with front powder driver and rear power driver
CN102337952A (en) * 2011-10-17 2012-02-01 谢小江 High-efficiency power generation device by utilizing automobile tail gas
CN202889255U (en) * 2012-06-29 2013-04-17 苟仲武 Energy recovering and supplying system of hybrid electric vehicle
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