CN113513405B - Engine wheel train of hybrid electric vehicle and hybrid electric vehicle - Google Patents
Engine wheel train of hybrid electric vehicle and hybrid electric vehicle Download PDFInfo
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- CN113513405B CN113513405B CN202110872206.3A CN202110872206A CN113513405B CN 113513405 B CN113513405 B CN 113513405B CN 202110872206 A CN202110872206 A CN 202110872206A CN 113513405 B CN113513405 B CN 113513405B
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- engine
- crankshaft
- starting motor
- pulley
- mechanical compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
- F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Pulleys (AREA)
Abstract
The invention provides an engine gear train of a hybrid electric vehicle and the hybrid electric vehicle, which are used for solving the problems that the existing engine gear train has a complex structure, the technical means for realizing the driving of a mechanical compressor is complex when an engine is started, and the cost is high. The engine train includes: the engine comprises a crankshaft belt pulley, a starting motor and a mechanical compressor, wherein the crankshaft belt pulley is in transmission connection with the starting motor and the mechanical compressor through a belt to form an engine wheel train; the inner ring of the crankshaft pulley is used for being rigidly connected with the crankshaft of the engine; a one-way bearing arranged to slide or synchronously rotate an inner race and an outer race sheave of the crank pulley with each other; by means of the one-way transmission function of the one-way bearing, the starting motor can start the engine by means of the crankshaft pulley and the one-way bearing without driving the mechanical compressor to work, or the starting motor can drive the mechanical compressor to work by means of a belt, and the starting motor drives the mechanical compressor to work and the engine to work independently.
Description
Technical Field
The invention is used for a Hybrid Electric Vehicle (HEV), in particular to an engine turbine of the HEV and the HEV.
Background
In the existing hybrid electric vehicle, when an engine is in a working state, if the vehicle needs air-conditioning refrigeration, a compressor needs to be started, and the prior art provides some means. For example:
the patent numbers are: CN101531133B provides a crankshaft pulley system of an engine, in which a crankshaft pulley wheel system with an electromagnetic clutch is used, and when the engine is in a stop state, the electromagnetic clutch of the crankshaft pulley is in a disconnected state (at this time, the wheel system and the crankshaft are disconnected), and the wheel system accessories can be driven by a starting motor. However, the crankshaft pulley of the integrated electromagnetic clutch has a complex structure, occupies a large space, and has high cost, and the crankshaft pulley of the electromagnetic clutch needs a special electronic control unit and control logic, so that the cost of the whole system is increased, and the reliability is low.
In the patent numbers: CN209469490U discloses a front wheel train structure of an engine, which can realize the stop state of the engine, and drive a mechanical compressor by another starting motor through a separate wheel train. This patent structure is through configuring a starter motor alone (not starting integrative starter motor), and then through complicated train structure, drive mechanical compressor. In practical development, the integrated motor-driven compressor can be directly used, and the structure is complex and high in cost.
Disclosure of Invention
The invention provides an engine gear train of a hybrid electric vehicle and the hybrid electric vehicle, which are used for solving the problems that the existing engine gear train has a complex structure, the technical means for realizing the driving of a mechanical compressor is complex when an engine is started, and the cost is high.
The technical means of the invention is as follows:
the invention provides an engine gear train of a hybrid electric vehicle, which comprises:
the engine comprises a crankshaft belt pulley, a starting motor and a mechanical compressor, wherein the crankshaft belt pulley is in transmission connection with the starting motor and the mechanical compressor through a belt to form an engine wheel train; the inner ring of the crankshaft pulley is used for being rigidly connected with the crankshaft of the engine;
a one-way bearing arranged to slide or synchronously rotate an inner race and an outer race of the crank pulley with each other;
rely on one-way transmission function of one-way bearing makes the starter motor can rely on crank pulley with one-way bearing starter motor does not drive mechanical compressor work, perhaps makes the starter motor can rely on belt drive mechanical compressor work, just the work of starter motor drive mechanical compressor and the work of engine are independently gone on.
Preferably, when the starting motor rotates clockwise, the inner ring and the outer ring sheave of the crankshaft pulley are rigidly connected through the one-way bearing, and the torque output by the starting motor is sequentially transmitted to the outer ring sheave and the inner ring through the belt, so as to drag the crankshaft of the engine to rotate, so that the engine is started; when the engine is started, the starting motor stops rotating, the inner ring of the crankshaft pulley synchronously rotates towards the first direction along with the crankshaft of the engine, and the inner ring and the outer ring of the crankshaft pulley are separated due to the separation of the one-way bearing, so that the output torque of the crankshaft of the engine is not transmitted to the starting motor;
when the starting motor rotates anticlockwise, the starting motor drives the mechanical compressor to work through the belt, and an inner ring and an outer ring sheave of the crankshaft pulley are separated due to the fact that the one-way bearing is separated, so that torque of the starting motor is not transmitted to engine torque;
and under any working condition except that the starting motor is in the anticlockwise rotation working condition, the electromagnetic clutch inside the mechanical compressor is in a power-off separation state.
Preferably, the inner ring of the one-way bearing is sleeved on the inner ring of the crankshaft pulley and is rigidly connected with the inner ring of the crankshaft pulley;
the outer ring of the one-way bearing is assembled in the inner circumference of the outer ring sheave of the crankshaft pulley and is rigidly connected with the outer ring sheave of the crankshaft pulley.
Preferably, the starting motor is used for rotating towards a first direction when receiving a starting request sent by the vehicle body controller;
the starting motor is used for rotating towards the second direction when receiving a starting request sent by the air conditioning system, and the electromagnetic clutch in the mechanical compressor is electrified and combined when receiving the starting request sent by the air conditioning system.
The invention also provides a hybrid electric vehicle which comprises the engine gear train of the hybrid electric vehicle.
The invention has the beneficial effects that:
starting an engine by a starting motor on the front end wheel train side of the vehicle through a belt; in the stop or running state of the engine, the starting motor can drive the air-conditioning compressor through the belt, so that the automobile can still be refrigerated by the mechanical compressor under the pure electric working condition (the engine is stopped, and the automobile is driven to run by the driving motor at the rear end of the whole automobile).
The invention can use the mechanical compressor to replace the electric compressor to reduce the cost and can meet the requirement of using the air conditioner in the whole vehicle under any condition.
The invention realizes the function that the starting motor directly drives the mechanical compressor (or other gear train accessories) through the gear train belt by integrating the crankshaft pulley of the one-way bearing, and the gear train has simple structure and lower cost.
Drawings
FIG. 1 is a schematic layout of an engine train of the present embodiment;
FIG. 2 is a schematic diagram of the operation of the starter motor to start the engine in the present embodiment;
FIG. 3 is a schematic diagram of the operation of the starter motor driven mechanical compressor;
FIG. 4 is a schematic view showing the assembly of the crank pulley and the one-way bearing in the present embodiment;
in the figure, 1-crankshaft pulley, 11-outer ring sheave, 12-one-way bearing, 13-inner ring; 2-starting the motor; 3-a mechanical compressor; 4-a belt.
Detailed Description
The invention is further described below with reference to the drawings.
Referring to fig. 1, the present invention provides an engine train for a hybrid vehicle, the engine train including: the engine crankshaft comprises a crankshaft pulley 1, a starting motor 2, a mechanical compressor 3 and a belt 4, wherein an inner ring 13 of the crankshaft pulley 1 is rigidly connected with an engine crankshaft through a key slot, when the starting motor 2 drives the belt 4 to drag an outer ring grooved wheel 11 of the crankshaft pulley 1 to rotate clockwise, a one-way bearing 12 is in a locked state, and at the moment, the inner ring 13 of the crankshaft pulley 1 is rigidly connected with the outer ring grooved wheel 11 through the one-way bearing 12; the one-way bearing 12 is in a disengaged (slipping) state when the outer ring sheave 11 of the crank pulley 1 rotates counterclockwise. At this time, the inner ring 13 of the crank pulley 1 and the outer ring sheave 11 of the crank pulley 1 are separated from the rigid connection and are in a sliding state with each other. If the engine crankshaft is in a starting state, i.e. the inner ring 13 of the pulley 1 is in a clockwise rotation state, the one-way bearing 12 is in a disengaged (sliding) state, and the torque of the engine crankshaft cannot be transmitted to the gear train through the outer ring sheave 11 of the pulley 1.
Referring to fig. 4, in this embodiment, the inner ring of the one-way bearing 12 is sleeved on the inner ring 13 of the pulley 1 and is rigidly connected to the inner ring 13 of the pulley 1; the outer ring of the one-way bearing 12 is fitted into the inner circumference of the outer ring sheave 11 of the crank pulley 1 and rigidly connected to the outer ring sheave 13 of the crank pulley 1.
The engine wheel train in the embodiment has the following working conditions:
starting the engine by the starter motor 2: referring to fig. 2, the starting motor 2 rotates clockwise, the outer ring sheave 11 and the inner ring 13 of the crank pulley 1 are rigidly connected through the one-way bearing 12, the starting motor 2 transmits torque to the outer ring sheave 11 of the crank pulley 1 through the belt 4, the outer ring sheave 11 drives the inner ring 13 to rotate together through the one-way bearing 12, and then the inner ring 13 drags the engine crank to complete the starting working condition. When the engine is started, the starting motor 2 stops working, and at this time, the one-way clutch 12 is in a disengaged (slipping) state, that is, the inner ring 13 of the pulley 1 is in a clockwise rotation state rotating along with the crankshaft of the engine, and the outer ring sheave 11 of the pulley 1 and the starting motor 2 are in a synchronous stop state.
The starting motor 2 drives the mechanical compressor 3 to work: referring to fig. 3, no matter the engine is in a working state or a stop state, when the whole vehicle requires air conditioning, the starting motor 2 rotates counterclockwise to drive the mechanical compressor 3 to work, at this time, the one-way clutch 12 is in a disengagement (slipping) state, the outer ring grooved pulley 11 of the crank pulley 1 rotates counterclockwise along with the wheel train, and the torque of the starting motor 2 is not transmitted to the crankshaft of the engine.
In addition, in this application embodiment, when starting motor 2 is in 3 operating modes of drive mechanical compressor, if whole car need start engine this moment, starting motor 2 stops anticlockwise rotation, and clockwise rotation can start the engine again, and the starting condition is very brief, accomplishes within general 1 second, can not influence the air conditioner refrigeration effect. In addition, when mechanical compressor 3 was out of work, the inside electromagnetic clutch power failure of mechanical compressor 3 broke away from, prevented that starter motor 2 from dragging the inside rotor clockwise rotation of mechanical compressor 3 when being in the start-up operating mode, and then damaged 3 inner structure of mechanical compressor and air conditioner pipe-line system to can not cause the extravagant and then save the electric energy of battery of starter motor 2 starting torque.
The invention also provides a hybrid electric vehicle comprising the engine gear train.
Claims (4)
1. An engine train of a hybrid vehicle, comprising:
the engine comprises a crankshaft belt pulley (1), a starting motor (2) and a mechanical compressor (3), wherein the crankshaft belt pulley (1) is in transmission connection with the starting motor (2) and the mechanical compressor (3) through a belt to form an engine wheel train; the inner ring (13) of the crankshaft pulley (1) is used for being rigidly connected with an engine crankshaft;
a one-way bearing (12) arranged for sliding or synchronously rotating the inner race (13) and the outer race sheave (11) of the crank pulley (1) with respect to each other;
by means of the one-way transmission function of the one-way bearing (12), the starting motor (2) can start the engine by means of the crankshaft pulley (1) and the one-way bearing (12) without driving the mechanical compressor (3) to work, or the starting motor (2) can drive the mechanical compressor (3) to work by means of the belt, and the operation of driving the mechanical compressor (3) by the starting motor (2) and the operation of the engine are independently carried out;
when the starting motor (2) rotates clockwise, the inner ring (13) and the outer ring grooved pulley (11) of the crankshaft belt pulley (1) are rigidly connected through the one-way bearing (12), and torque output by the starting motor (2) is sequentially transmitted to the outer ring grooved pulley (11) and the inner ring through the belt, so that the crankshaft of the engine is dragged to rotate, and the engine is started; when the engine is started, the starting motor (2) stops rotating, the inner ring (13) of the crankshaft pulley (1) synchronously rotates towards a first direction along with the crankshaft of the engine, and the inner ring (13) and the outer ring grooved wheel (11) of the crankshaft pulley (1) are separated due to the separation of the one-way bearing (12), so that the output torque of the crankshaft of the engine is not transmitted to the starting motor (2);
when the starting motor (2) rotates anticlockwise, the starting motor (2) drives the mechanical compressor (3) to work through the belt, and the inner ring (13) and the outer ring grooved pulley (11) of the crankshaft belt pulley (1) are separated due to the separation of the one-way bearing (12), so that the torque of the starting motor (2) is not transmitted to the torque of an engine;
and under any working condition except that the starting motor (2) is in a counterclockwise rotation working condition, the electromagnetic clutch inside the mechanical compressor (3) is in a power-off separation state.
2. The engine train of the hybrid vehicle according to claim 1,
the inner ring of the one-way bearing (12) is sleeved on the inner ring (13) of the crankshaft pulley (1) and is rigidly connected with the inner ring (13) of the crankshaft pulley (1);
the outer ring of the one-way bearing (12) is assembled in the inner circumference of the outer ring grooved wheel (11) of the crankshaft pulley (1) and is rigidly connected with the outer ring grooved wheel (11) of the crankshaft pulley (1).
3. The engine train of a hybrid vehicle according to claim 1,
the starting motor (2) is used for rotating towards a first direction when receiving a starting request sent by a vehicle body controller;
the starting motor (2) is used for rotating towards the second direction when receiving a starting request sent by the air conditioning system, and the electromagnetic clutch in the mechanical compressor (3) is electrified and combined when receiving the starting request sent by the air conditioning system.
4. A hybrid vehicle characterized by comprising an engine train of the hybrid vehicle according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110872206.3A CN113513405B (en) | 2021-07-30 | 2021-07-30 | Engine wheel train of hybrid electric vehicle and hybrid electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110872206.3A CN113513405B (en) | 2021-07-30 | 2021-07-30 | Engine wheel train of hybrid electric vehicle and hybrid electric vehicle |
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| Publication Number | Publication Date |
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| CN113513405A CN113513405A (en) | 2021-10-19 |
| CN113513405B true CN113513405B (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110872206.3A Active CN113513405B (en) | 2021-07-30 | 2021-07-30 | Engine wheel train of hybrid electric vehicle and hybrid electric vehicle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776503A (en) * | 2022-03-31 | 2022-07-22 | 东风汽车集团股份有限公司 | Engine system and vehicle |
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