CN115214344A - Single-motor hybrid system and hybrid vehicle - Google Patents
Single-motor hybrid system and hybrid vehicle Download PDFInfo
- Publication number
- CN115214344A CN115214344A CN202110419021.7A CN202110419021A CN115214344A CN 115214344 A CN115214344 A CN 115214344A CN 202110419021 A CN202110419021 A CN 202110419021A CN 115214344 A CN115214344 A CN 115214344A
- Authority
- CN
- China
- Prior art keywords
- motor
- hybrid
- engine
- locker
- control system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 29
- 230000033001 locomotion Effects 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims description 11
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000010248 power generation Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
-
- 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
- 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 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 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 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 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
- 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/442—Series-parallel switching type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a single-motor hybrid system and a hybrid vehicle, comprising: a hybrid control system; the planetary gear set comprises a planet carrier and a plurality of planetary gears arranged on the planet carrier; the engine is in transmission connection with the planet carrier and is in communication connection with the hybrid control system; the motor is in transmission connection with the sun wheel and is in communication connection with the hybrid control system; the power output mechanism is in transmission connection with the gear ring; and the mode switching system comprises a first locker for limiting the movement of the planet carrier and a second locker for limiting the movement of the sun gear, and the first locker and the second locker are respectively in communication connection with the hybrid control system. The invention can simplify the whole structure, has various and rich working modes and smooth switching, and reduces the total energy consumption of the engine and the motor.
Description
Technical Field
The invention relates to the technical field of hybrid, in particular to a single-motor hybrid system and a hybrid vehicle.
Background
Hybrid powertrain systems may improve vehicle fuel economy in a number of ways. For example, the engine may be turned off during idle, deceleration, or braking, and travel in an electric-only drive mode to eliminate efficiency losses due to inefficient power output of the engine. Additionally, energy stored in the power battery, either generated by regenerative braking or generated by the electric machine during engine operation, may be utilized in an electric-only drive mode, or to supplement the torque or power of the engine in a hybrid drive mode.
Hybrid vehicles are capable of being driven by combining at least two different powers, and most of the hybrid vehicles currently employ a gasoline-electric hybrid system including an engine powered from fuel and an electric motor driven by electric power. In order to improve the combustion efficiency of the engine to the maximum extent, hybrid power systems developed by many automobile manufacturers all adopt a dual-motor structure, namely, one additional hybrid power system is added besides a driving motor.
However, the conventional hybrid system has a complicated overall structure, a difficult layout, and high total energy consumption.
Disclosure of Invention
In view of the above disadvantages of the prior art, the present invention provides a hybrid vehicle and a hybrid system with a single motor, which can simplify the overall structure, provide various and smooth switching modes, and reduce the overall energy consumption of the engine and the motor.
In order to solve the above technical problem, the present invention provides a single motor hybrid system, including:
a hybrid control system;
the planetary gear mechanism is used for distributing power and comprises a gear ring, a sun gear positioned at the center of the gear ring and a planetary gear set arranged between the gear ring and the sun gear, wherein the planetary gear set comprises a planet carrier and a plurality of planetary gears arranged on the planet carrier;
the engine is in transmission connection with the planet carrier and is in communication connection with the hybrid control system;
the motor is in transmission connection with the sun wheel and is in communication connection with the hybrid control system;
the power output mechanism is in transmission connection with the gear ring;
and the mode switching system comprises a first locker for limiting the movement of the planet carrier and a second locker for limiting the movement of the sun gear, and the first locker and the second locker are respectively in communication connection with the hybrid control system.
Preferably, the single-motor hybrid system further comprises a drive battery electrically connected to the motor and communicatively connected to the hybrid control system.
Preferably, the power output mechanism comprises a power transmission assembly, a differential and a running mechanism which are connected in sequence, and the power transmission assembly is in transmission connection with the gear ring.
Preferably, the mode switching system further comprises a third locker for limiting the movement of the power output mechanism, a brake trigger operated by a user, and a position detector for acquiring the position of the brake trigger, wherein the brake trigger is in transmission connection with the third locker, and the position detector is in communication connection with the hybrid control system.
Preferably, the single-motor hybrid system further comprises a rotation speed detection system, the rotation speed detection system comprises a first rotation speed sensor for detecting the rotation speed of the gear ring, a second rotation speed sensor for detecting the rotation speed of the sun gear and a third rotation speed sensor for detecting the rotation speed of the planet carrier, and the first rotation speed sensor, the second rotation speed sensor and the third rotation speed sensor are respectively in communication connection with the hybrid control system.
Preferably, the hybrid control system comprises a hybrid main controller, an engine electronic control unit and a motor electronic control unit, wherein the engine electronic control unit is in communication connection with the engine and the hybrid main controller respectively, and the motor electronic control unit is in communication connection with the motor and the hybrid main controller respectively.
The invention further provides a hybrid vehicle which comprises the single-motor hybrid system.
As described above, the single-motor hybrid system and the hybrid vehicle according to the present invention have the following advantageous effects: in the invention, the single-motor hybrid system has a very simple overall structure and is convenient to arrange, and the engine is in transmission connection with the planet carrier, so that a clutch and a speed changer are omitted, the manufacturing cost and the maintenance cost are greatly reduced, the weight is reduced, and the installation layout is facilitated; the planetary gear mechanism and the mode switching system are combined for use, and the motor can be used as a generator and a motor, so that the power distribution of the single-motor hybrid system is flexible; under the regulation of the mode switching system, the single-motor hybrid system has various working modes and rich series-parallel combination types; the switching of different working modes is smooth, and no switching pause or frustration is caused; the hybrid control system collects and controls the working conditions of the engine and the motor in real time, controls the locking state and the unlocking state of the first locking device and the second locking device, improves the overall operation efficiency of the engine and the motor, avoids the situation that a user only uses the engine to drive the power output mechanism to operate, and enables the single-motor hybrid system to be in the most energy-saving operation state. Therefore, the invention can simplify the whole structure, has various and rich working modes and smooth switching, and reduces the total energy consumption of the engine and the motor.
Drawings
FIG. 1 is a schematic structural diagram of a single motor hybrid system according to the present invention;
fig. 2 is a communication connection diagram of the single-motor hybrid system of the present invention.
Description of the element reference
1. Hybrid control system
11. Hybrid master controller
12. Engine electric control unit
13. Electric control unit of motor
14. Rotational speed detection unit
15. Battery management unit
2. Planetary gear mechanism
21. Gear ring
22. Sun wheel
23. Planetary gear set
231. Planet carrier
232. Planetary gear
3. Engine
4. Electrical machine
5. Power take-off mechanism
51. Power transmission assembly
52. Differential mechanism
6. Rotating speed detection system
61. First speed sensor
62. Second rotational speed sensor
63. Third rotational speed sensor
7. Mode switching system
71. First locking device
72. Second locking device
73. Third locking device
74. Brake trigger
8. Driving battery
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure of the present invention.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions that the present disclosure can be implemented, so that the present disclosure is not limited to the technical essence, and any structural modifications, ratio changes, or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1 and 2, the present invention provides a single motor hybrid system, including:
a hybrid control system 1;
a planetary gear mechanism 2 for distributing power, the planetary gear mechanism 2 including a ring gear 21, a sun gear 22 located at the center of the ring gear 21, and a planetary gear set 23 provided between the ring gear 21 and the sun gear 22, the planetary gear set 23 including a carrier 231 and a plurality of pinion gears 232 provided to the carrier 231;
the engine 3 is in transmission connection with the planet carrier 231 and is in communication connection with the hybrid control system 1; the engine 3 can be one of an internal combustion engine (such as a reciprocating piston engine), an external combustion engine (such as a Stirling engine and a steam engine), a jet engine and an electric motor;
the motor 4 is in transmission connection with the sun gear 22 and is in communication connection with the hybrid control system 1; the motor 4 can be used as a generator and a motor;
the power output mechanism 5 is in transmission connection with the gear ring 21;
the mode switching system 7, the mode switching system 7 includes a first locker 71 for limiting the movement of the planet carrier 231 and a second locker 72 for limiting the movement of the sun gear 22, and the first locker 71 and the second locker 72 are respectively connected to the hybrid control system 1 in a communication manner.
In the invention, the hybrid control system 1 is respectively connected with the engine 3 and the motor 4 in a communication way so as to acquire and control the running state (such as the rotating speed) of the engine 3 and the running state (such as the rotating speed) of the motor 4; the hybrid control system 1 is communicatively connected to the first locker 71 and the second locker 72, respectively, to acquire and control an operation state (locking or unlocking) of the first locker 71 and an operation state (locking or unlocking) of the second locker 72.
The basic motion principle of the planetary gear mechanism 2 described above is: when the ring gear 21 is fixed, the carrier 231 and the sun gear 22 rotate in the same direction; when the carrier 231 is fixed, the ring gear 21 and the sun gear 22 rotate in reverse; when the sun gear 22 is fixed, the ring gear 21 and the carrier 231 rotate in the same direction. The planetary gear mechanism 2 is used for distributing power, that is, the engine 3 (in general, the engine 3 is an internal combustion engine) is in transmission connection with the planet carrier 231, the engine 3 transmits power to the planet carrier 231 and then is divided into two paths, one path of power can flow to the ring gear 21 to drive the power output mechanism 5, and the other path of power can flow to the sun gear 22 to drive the motor 4, so as to realize a power generation function. In the planetary gear mechanism 2, a proportional relationship is formed between the sum of the rotation speeds of the ring gear 21 and the sun gear 22 and the rotation speed of the carrier 231, that is, the sum of the rotation speeds of the ring gear 21 and the motor 4 and the rotation speed of the engine 3. When the rotation speed of the engine 3 is fixed, an inverse relationship is formed between the rotation speed of the motor 4 and the rotation speed of the ring gear 21.
The power output mechanism 5 may be a running mechanism, a jacking mechanism, or a working mechanism in other motion forms. Based on the transmission relationship, the hybrid control system 1 converts a preset speed to be attained by the power output mechanism 5 (if the power output mechanism 5 is a running mechanism, the preset speed of the power output mechanism 5 may be a running speed with respect to the ground) into a rotational speed to be attained by the ring gear 21. The current speed of the power output mechanism 5 can be changed to realize a speed change under a change in the operation mode (power generation mode or drive mode) of the motor 4. That is, the power output mechanism 5 can realize the speed change without the existing clutch and transmission in the single motor hybrid system. The hybrid control system 1 can calculate how much power the engine 3 needs to provide based on information about the load, etc., to determine the rotational speed of the engine 3. Once the rotational speed of the engine 3 and the rotational speed of the ring gear 21 are determined, the rotational speed of the sun gear 22 can be determined.
The mode switching system 7 is used for changing the power transmission path of the single-motor hybrid system, the mode switching system 7 includes a first locker 71 for limiting the movement of the carrier 231 and a second locker 72 for limiting the movement of the sun gear 22, and the change in the actions of the first locker 71 and the second locker 72 can switch a plurality of operation modes: in the first mode, when the carrier 231 is locked by the first locker 71 and the sun gear 22 is released by the second locker 72, the motor 4 is placed in the drive mode, and power is transmitted to the power output mechanism 5 through the sun gear 22, the pinion 232, and the ring gear 21 in this order. In the second mode, when the first locker 71 releases the carrier 231 and the second locker 72 releases the sun gear 22, the engine 3 transmits power to the carrier 231 and then divides the power into two paths, one of the two paths of power is transmitted to the motor 4 through the planetary gear 232 and the sun gear 22 in order to put the motor 4 into a power generation state, and the other path of power is transmitted to the power output mechanism 5 through the planetary gear 232 and the ring gear 21 in order. At this time, it should be noted that: if the ring gear 21 is in a stationary state, i.e. the power take-off 5 is not operating, the power of the engine 3 can be fully transmitted to the motor 4, i.e. the power output by the engine 3 is fully used for generating electricity. In the third mode, when the first locker 71 releases the carrier 231 and the second locker 72 locks the sun gear 22, the power output from the engine 3 is transmitted to the power output mechanism 5 through the carrier 231, the pinion gears 232, and the ring gear 21 in this order. In the fourth mode, when the carrier 231 is released by the first locker 71 and the sun gear 22 is released by the second locker 72, the motor 4 is in the drive mode, the power output from the engine 3 is transmitted to the power output mechanism 5 through the carrier 231, the pinion 232, and the ring gear 21 in this order, and the power output from the motor 4 is transmitted to the power output mechanism 5 through the sun gear 22, the pinion 232, and the ring gear 21 in this order.
Therefore, the technical effects of the single-motor hybrid system of the invention are as follows:
1. the single-motor hybrid system has a very simple overall structure and is convenient to arrange, and the engine 3 is in transmission connection with the planet carrier 231, so that a clutch and a speed changer are omitted, the manufacturing cost and the maintenance cost are greatly reduced, the weight is reduced, and the installation layout is facilitated;
2. the planetary gear mechanism 2 and the mode switching system 7 are combined for use, and the motor 4 can be used as a generator and a motor, so that the power distribution of the single-motor hybrid system is flexible; under the regulation of the mode switching system 7, the single-motor hybrid system has various working modes and rich series-parallel combination types; the switching of different working modes is smooth, and no switching pause or frustration is caused;
3. the hybrid control system 1 collects and controls the working conditions of the engine 3 and the motor 4 in real time, controls the locking state and the unlocking state of the first locker 71 and the second locker 72, improves the overall operation efficiency of the engine 3 and the motor 4, avoids the situation that a user uses the engine 3 to drive the power output mechanism 5 to operate in an engine low-efficiency interval, and enables the single-motor hybrid system to be in the most energy-saving operation state.
The single-motor hybrid system further comprises a driving battery 8, and the driving battery 8 is electrically connected to the motor 4 and is communicatively connected to the hybrid control system 1. The drive battery 8 is used to supply power to the motor 4 or store electric power generated by the motor 4. The hybrid control system 1 is connected to the drive battery 8 in communication, and can acquire the SOC value (the ratio of the remaining dischargeable electric quantity to the electric quantity in its fully charged state) of the drive battery 8 in real time. The SOC of the driving battery 8 is divided into a charged state, a low-charged state and an empty state, the SOC of the charged state (i.e. the ratio of the remaining capacity to the battery capacity, and the SOC of the driving battery 8 is adjustable by a user) ranges from greater than 25%, the SOC of the low-charged state ranges from 10% to 25%, and the SOC of the empty state ranges from less than 10%. The power output mechanism 5 is divided into a low speed, a medium speed, and a high speed that become larger in order with respect to the speed per hour of the road surface, and the low speed has a value in a range of less than 42Km/h, the medium speed has a value in a range of 42 to 82Km/h, and the high speed has a value in a range of more than 82Km/h.
Based on the above-described SOC value of the drive battery 8 and the speed per hour of the power output mechanism 5, the operation modes of the hybrid single-motor system include the following modes, thereby reducing the total energy consumption of the hybrid single-motor system:
when the power output mechanism 5 is running at a low speed, or the drive battery 8 is in a charged state and the power output mechanism 5 is running at a medium speed (simply referred to as low speed and charged medium speed, hereinafter referred to in the form of short term): the first locker 71 locks the carrier 231, the second locker 72 releases the sun gear 22, the motor 4 directly drives the sun gear 22, the sun gear 22 transmits power to the ring gear 21 through the pinion 232, and the ring gear 21 transmits power to the power output mechanism 5.
When the drive battery 8 is in a low-power state and the power output mechanism 5 is running at a medium speed (simply referred to as low-power medium speed): the first locker 71 releases the carrier 231, the second locker 72 releases the sun gear 22, and the motor 4 is in the power generation mode. The engine 3 directly drives the carrier 231, the carrier 231 transmits a part of the power to the sun gear 22, so that the motor 4 is placed in the power generation mode, the carrier 231 transmits another part of the power to the ring gear 21, and the ring gear 21 transmits the power to the power output mechanism 5.
When the power output mechanism 5 runs at high speed (simply referred to as high speed): the first locker 71 releases the carrier 231, the second locker 72 locks the sun gear 22, the engine 3 directly drives the carrier 231, the carrier 231 transmits all the power to the ring gear 21, and the ring gear 21 transmits the power to the power output mechanism 5.
When the drive battery 8 is in a charged state (simply referred to as charged): the first locker 71 releases the carrier 231, the second locker 72 releases the sun gear 22, the engine 3 directly drives the carrier 231, the carrier 231 transmits all the power to the ring gear 21, and the ring gear 21 transmits the power to the power output mechanism 5; the motor 4 is in the drive mode, the motor 4 rotates in reverse and transmits power to the ring gear 21 through the planetary gears 232, and the ring gear 21 transmits power to the power output mechanism 5.
As an embodiment of the above-described mode switching system 7: the mode switching system 7 further includes a third latch 73 for restricting the movement of the power take-off 5, a brake trigger 74 (e.g., a brake stepped on by the driver) operated by the user, and a position detector for detecting the position of the brake trigger 74, wherein the brake trigger 74 is drivingly connected to the third latch 73, and the position detector is communicatively connected to the hybrid control system 1. The position detector can collect the position information of the brake trigger 74 in real time, and when the positions of the brake triggers 74 are different, the position detector sends different motor operation instructions to the hybrid control system 1. For example, when the brake trigger 74 is a pedal, the movement stroke of the brake trigger 74 is divided into two sections, and when the brake trigger 74 is located at one of the sections, the position detector sends a motor power generation command to the hybrid control system 1, so that the hybrid control system 1 controls the motor 4 to enter the power generation mode. Furthermore, the brake trigger 74 can bring the third latch 73 along the entire stroke of the brake trigger 74 to generate a movement resistance or even to lock the power take-off 5.
When the single-motor hybrid system of the present invention is applied to a vehicle, the following table is referred to for each specific operating state of the single-motor hybrid system:
TABLE 1 operating conditions of a single-motor hybrid system at vehicle start-up
TABLE 2 working states of the single-motor hybrid system at low vehicle speeds
TABLE 3 operating conditions of the single-motor hybrid system at medium vehicle speed
TABLE 4 working state of single-motor hybrid system at high speed of vehicle
TABLE 5 operating conditions of the single-motor hybrid system during acceleration of the vehicle motion
TABLE 6 working state of single-motor hybrid system during vehicle coasting or deceleration energy recovery
When the hybrid one-motor system is applied to a vehicle, the power output mechanism 5 includes a power transmission module 51, a differential 52, and a traveling mechanism, which are connected in this order, and the power transmission module 51 is drivingly connected to the ring gear 21.
In order to facilitate detection of the speeds corresponding to the ring gear 21, the sun gear 22, and the carrier 231 of the planetary gear mechanism 2, the single motor hybrid system further includes a rotational speed detection system 6, the rotational speed detection system 6 includes a first rotational speed sensor 61 for detecting the rotational speed of the ring gear 21, a second rotational speed sensor 62 for detecting the rotational speed of the sun gear 22, and a third rotational speed sensor 63 for detecting the rotational speed of the carrier 231, and the first rotational speed sensor 61, the second rotational speed sensor 62, and the third rotational speed sensor 63 are respectively connected to the hybrid control system 1 in a communication manner.
In order to improve the safety reliability and the real-time transmission performance of the hybrid control system 1, the hybrid control system 1 includes a hybrid main controller 11, an engine electronic control unit 12 and a motor electronic control unit 13, the engine electronic control unit 12 is in communication connection with the engine 3 and the hybrid main controller 11 respectively, and the motor electronic control unit 13 is in communication connection with the motor 4 and the hybrid main controller 11 respectively. Further, the hybrid control system 1 further includes a rotation speed detection unit 14 and a battery management unit, the rotation speed detection unit 14 is in communication connection with the first rotation speed sensor 61, the second rotation speed sensor 62, the third rotation speed sensor 63 and the hybrid master controller 11, respectively, and the battery management unit 15 is in communication connection with the driving battery 8 and the hybrid master controller 11, respectively.
The invention also provides a hybrid vehicle which comprises the single-motor hybrid system. The hybrid vehicle has lower energy consumption and more diversified driving modes.
In conclusion, the single-motor hybrid system and the hybrid vehicle can simplify the overall structure, have various and rich working modes and smooth switching, and reduce the overall energy consumption of the engine and the motor. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (7)
1. A single motor hybrid system, comprising:
a hybrid control system (1);
a planetary gear mechanism (2) for distributing power, the planetary gear mechanism (2) including a ring gear (21), a sun gear (22) located at the center of the ring gear (21), and a planetary gear set (23) provided between the ring gear (21) and the sun gear (22), the planetary gear set (23) including a carrier (231) and a plurality of planetary gears (232) provided to the carrier (231);
the engine (3), the engine (3) is in transmission connection with the planet carrier (231) and is in communication connection with the hybrid control system (1);
the motor (4), the motor (4) is in transmission connection with the sun gear (22) and is in communication connection with the hybrid control system (1);
the power output mechanism (5), the power output mechanism (5) is in transmission connection with the gear ring (21);
the mode switching system (7) comprises a first locker (71) for limiting the movement of the planet carrier (231) and a second locker (72) for limiting the movement of the sun gear (22), and the first locker (71) and the second locker (72) are respectively connected with the hybrid control system (1) in a communication mode.
2. The single motor hybrid system according to claim 1, characterized in that: the single-motor hybrid system further comprises a driving battery (8), and the driving battery (8) is electrically connected to the motor (4) and is in communication connection with the hybrid control system (1).
3. The single-motor hybrid system according to claim 1, characterized in that: the power output mechanism (5) comprises a power transmission assembly (51), a differential (52) and a running mechanism which are sequentially connected, and the power transmission assembly (51) is in transmission connection with the gear ring (21).
4. The single-motor hybrid system according to claim 1, characterized in that: the mode switching system (7) further comprises a third locking device (73) for limiting the movement of the power output mechanism (5), a brake trigger (74) operated by a user and a position detector for acquiring the position of the brake trigger (74), wherein the brake trigger (74) is in transmission connection with the third locking device (73), and the position detector is in communication connection with the hybrid control system (1).
5. The single-motor hybrid system according to claim 1, characterized in that: the single-motor hybrid system further comprises a rotating speed detection system (6), the rotating speed detection system (6) comprises a first rotating speed sensor (61) for detecting the rotating speed of the gear ring (21), a second rotating speed sensor (62) for detecting the rotating speed of the sun gear (22) and a third rotating speed sensor (63) for detecting the rotating speed of the planet carrier (231), and the first rotating speed sensor (61), the second rotating speed sensor (62) and the third rotating speed sensor (63) are respectively in communication connection with the hybrid control system (1).
6. The single motor hybrid system according to claim 1, characterized in that: the hybrid control system (1) comprises a hybrid master controller (11), an engine electric control unit (12) and a motor electric control unit (13), wherein the engine electric control unit (12) is in communication connection with an engine (3) and the hybrid master controller (11) respectively, and the motor electric control unit (13) is in communication connection with a motor (4) and the hybrid master controller (11) respectively.
7. A hybrid vehicle, characterized in that: comprising a single motor hybrid system as claimed in any one of claims 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110419021.7A CN115214344A (en) | 2021-04-19 | 2021-04-19 | Single-motor hybrid system and hybrid vehicle |
| PCT/CN2021/091561 WO2022222187A1 (en) | 2021-04-19 | 2021-04-30 | Single-electric-motor hybrid system and hybrid vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110419021.7A CN115214344A (en) | 2021-04-19 | 2021-04-19 | Single-motor hybrid system and hybrid vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115214344A true CN115214344A (en) | 2022-10-21 |
Family
ID=83605905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110419021.7A Pending CN115214344A (en) | 2021-04-19 | 2021-04-19 | Single-motor hybrid system and hybrid vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115214344A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327745A (en) * | 2007-06-20 | 2008-12-24 | 福特环球技术公司 | System and method of extending regenerative braking in a hybrid electric vehicle |
| CN101844509A (en) * | 2009-12-10 | 2010-09-29 | 安徽巨一自动化装备有限公司 | Hybrid power assembly device of single planetary row |
| DE102015221402A1 (en) * | 2015-11-02 | 2017-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Hybrid drive module |
| CN109823158A (en) * | 2018-12-29 | 2019-05-31 | 潍柴动力股份有限公司 | Hybrid transmissions and vehicle |
| CN110341458A (en) * | 2018-04-05 | 2019-10-18 | 本田技研工业株式会社 | Drives for hybrid vehicles |
| CN214564585U (en) * | 2021-04-19 | 2021-11-02 | 侯东明 | Single-motor hybrid system and hybrid vehicle |
-
2021
- 2021-04-19 CN CN202110419021.7A patent/CN115214344A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327745A (en) * | 2007-06-20 | 2008-12-24 | 福特环球技术公司 | System and method of extending regenerative braking in a hybrid electric vehicle |
| CN101844509A (en) * | 2009-12-10 | 2010-09-29 | 安徽巨一自动化装备有限公司 | Hybrid power assembly device of single planetary row |
| DE102015221402A1 (en) * | 2015-11-02 | 2017-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Hybrid drive module |
| CN110341458A (en) * | 2018-04-05 | 2019-10-18 | 本田技研工业株式会社 | Drives for hybrid vehicles |
| CN109823158A (en) * | 2018-12-29 | 2019-05-31 | 潍柴动力股份有限公司 | Hybrid transmissions and vehicle |
| CN214564585U (en) * | 2021-04-19 | 2021-11-02 | 侯东明 | Single-motor hybrid system and hybrid vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100843668B1 (en) | Hybrid vehicle, control method of hybrid vehicle, and power output apparatus | |
| CN101687503B (en) | Vehicle, its control method, and drive device | |
| CN101376335B (en) | Hybrid-power car | |
| AU2002308313A1 (en) | Differential electric engine with variable torque conversion | |
| EP1385715A1 (en) | Differential electric engine with variable torque conversion | |
| CN201863701U (en) | Dual-motor hybrid power system | |
| CN201588908U (en) | Double-planetary-gear-train multi-power coupling mechanism | |
| CN102555767B (en) | Automobile three-clutch hybrid power driving device and its control method | |
| CN103434383B (en) | The change speed gear box of hybrid vehicle and corresponding control method | |
| CN110722972A (en) | Hybrid power system and driving method thereof | |
| CN214564585U (en) | Single-motor hybrid system and hybrid vehicle | |
| CN100497024C (en) | Hybrid powered electric car capable of changing speed automatically | |
| CN214564586U (en) | Distributed power system and automobile | |
| CN104742717A (en) | Hybrid electric system adopting double-rotor motor and implementation method of hybrid electric system adopting double-rotor motor | |
| CN103832429B (en) | Method for controlling multi-mode powertrain system | |
| CN200984967Y (en) | Mixed power vehicle driving system | |
| CN105564214A (en) | Planetary gear train power coupling device with locking function and working method thereof | |
| WO2022222187A1 (en) | Single-electric-motor hybrid system and hybrid vehicle | |
| CN115214344A (en) | Single-motor hybrid system and hybrid vehicle | |
| CN208947082U (en) | A kind of hybrid power system | |
| CN201553013U (en) | Driving system of rear wheel drive type hybrid power sedan | |
| CN201544766U (en) | Four-wheel driving type hybrid-driving system | |
| CN101462482A (en) | Novel double-motor series-parallel connection hybrid power assembly configuration | |
| CN112373290A (en) | Hybrid electric vehicle driving system, driving method and vehicle | |
| CN100554055C (en) | Power take-off implement and control method thereof and the automobile of power take-off implement is installed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |