A hybrid architecture all-in-one integrated extended-range powertrain

Abstract

This invention provides a hybrid architecture integrated range-extending powertrain system, belonging to the field of automotive range-extending drive technology. The system features high integration, a compact structure, and excellent lightweight performance. The P1 range-extending motor rotor is directly connected to the crankshaft at the engine output end. The P3 drive motor is fixedly mounted on the housing of the P1 range-extending motor. A controller is fixedly arranged on both the P1 and P3 drive motors, integrating control components for both. The input end of the transmission mechanism is connected to the output end of the P3 drive motor, and the output end of the transmission mechanism is connected to the vehicle chassis. By directly connecting the P1 range-extending motor to the engine and integrating the P3 drive motor with the transmission mechanism, the overall axial dimensions are reduced, the cooling system layout is optimized, and the overall integration is high, saving space in the vehicle's engine compartment and meeting lightweight requirements.

Description

Technical Field

[0001] This utility model belongs to the field of automotive range-extending drive technology, and in particular relates to a hybrid architecture multi-integrated range-extending power system. Background Technology

[0002] With the rapid development of new energy vehicles, new energy motors and electronic controls are evolving towards high integration and lightweight design. Currently, the hybrid parallel-shaft hybrid gearboxes used in the market employ a solution where the P1 motor is mostly a high-speed oil-cooled motor with an integrated speed-increasing mechanism. Power is transmitted from the engine crankshaft to the speed-increasing gear via a flywheel and torsional vibration, which then acts on the P1 motor to generate electricity. This design suffers from low integration, poor overall compactness, and a large footprint in the chassis, failing to meet current demands for lightweight automotive design. Summary of the Invention

[0003] To address the problems existing in the background technology, this utility model provides a hybrid architecture all-in-one integrated range-extending power system, which has a high degree of integration, compact structure, and good lightweight effect.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a hybrid architecture multi-integrated range-extending power system, including a controller, a P3 drive motor, a transmission mechanism, and a P1 range-extending motor. The rotor of the P1 range-extending motor is directly connected to the crankshaft at the output end of the engine. The P3 drive motor is fixedly mounted on the housing of the P1 range-extending motor. The controller is fixedly mounted on the P1 range-extending motor and the P3 drive motor. The controller integrates control components for the P1 range-extending motor and the P3 drive motor. The controller is connected to both the P1 range-extending motor and the P3 drive motor. The input end of the transmission mechanism is connected to the output end of the P3 drive motor, and the output end of the transmission mechanism is connected to the transmission of the vehicle chassis.

[0005] The hybrid architecture all-in-one integrated range-extending power system also includes an oil cooler, the cooling oil circuit of which is connected to the cooling pipes of the P3 drive motor and transmission mechanism.

[0006] The controller integrates a GCU and an MCU. The three-phase copper busbar of the P1 range extender motor is connected to the controller, and the three-phase copper busbar of the P3 drive motor is also connected to the controller. The controller is equipped with low-voltage connectors and two-phase wire interfaces to connect with peripheral components.

[0007] The P1 range extender motor is a water-cooled motor. The rotor of the P1 range extender motor is driven and connected to the crankshaft at the output end of the engine. The stator of the P1 range extender motor is fixedly connected to the engine housing. The three high-voltage output interfaces, the resolver signal interface, and the low-voltage temperature signal interface of the P1 range extender motor are all connected to the controller.

[0008] The controller is equipped with a water inlet, and the cooling pipes inside the controller are connected to the cooling pipes of the P1 range extender motor.

[0009] The P3 drive motor shares a cavity with the transmission mechanism. The transmission mechanism is equipped with a speed-increasing gear. The P3 drive motor is connected to the transmission mechanism through a transmission gear pair. An oil cooling pipeline is installed inside the cavity and is connected to an oil cooler.

[0010] The beneficial effects of this utility model are as follows: This utility model provides a hybrid architecture multi-integrated range-extending power system. In this system, there are no transmission gears, planetary gear sets, or other transmission structures between the P1 range-extending motor rotor and the engine. The rotor support is equipped with an engine crankshaft interface and a rotor core for assembly, eliminating the need for the splined shaft and high-speed bearings of common oil-cooled motors, thus simplifying the structure. The system integrates the transmission mechanism with the P3 drive motor, unifying the layout of cooling pipes and simplifying the overall structure. The system reduces the overall axial dimension, facilitating placement in the vehicle's engine compartment, saving engine compartment space, and meeting lightweight requirements. The P1 range-extending motor in this system is water-cooled and directly connected to the engine. The engine does not drive the P1 range-extending motor but only generates electricity, simplifying engine operation and allowing for selection of optimal performance, NVH, and other operating conditions. This solution combines the directly connected P1 range-extending motor with the P3 motor and transmission mechanism to achieve a deeper degree of integration and lightweighting. Attached Figure Description

[0011] In the attached diagram:

[0012] Figure 1 This is an isometric drawing of the overall structure of this utility model;

[0013] Figure 2 This is a top view of the overall structure of this utility model;

[0014] In the diagram: 1. Controller; 2. P3 drive motor; 3. Oil cooler; 4. Transmission mechanism; 5. P1 range extender motor; 6. Water inlet; 7. Low-voltage connector; 8. Two-phase line cover; 9. Two-phase line interface. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0016] A hybrid architecture multi-integrated range-extending powertrain system includes a controller 1, a P3 drive motor 2, a transmission mechanism 4, and a P1 range-extending motor 5. The input end of the P1 range-extending motor 5 is directly connected to the crankshaft drive of the engine output end. The P3 drive motor 2 is fixedly mounted on the housing of the P1 range-extending motor 5. The controller 1 is fixedly mounted on the P1 range-extending motor 5 and the P3 drive motor 2. The controller 1 integrates control components for both the P1 range-extending motor and the P3 drive motor. The controller 1 is connected to both the P1 range-extending motor 5 and the P3 drive motor 2. The input end of the transmission mechanism 4 is connected to the output end of the P3 drive motor 2, and the output end of the transmission mechanism 4 is connected to the vehicle chassis transmission.

[0017] The hybrid architecture multi-integrated range-extending power system also includes an oil cooler 3. The cooling oil circuit of the oil cooler 3 is connected to the cooling pipes of the P3 drive motor 2 and the transmission mechanism 4. The oil cooler 3 integrates an oil pump, and the operation of the oil cooler 3 cools and dissipates heat from the P3 drive motor 2 and the transmission mechanism 4.

[0018] The controller 1 integrates a GCU and an MCU. The three-phase copper busbar of the P1 range extender motor 5 is connected to the controller 1. The three-phase copper busbar of the P3 drive motor 2 is also connected to the controller 1. The controller 1 is equipped with a low-voltage connector 7 and a two-phase line interface 9 to connect with peripheral components. An operation port is opened on the outer shell of the controller 1 for tightening and tightening the fixing screws of the two-phase high-voltage line. The two-phase line cover plate 8 can be detachably fixed on the operation port.

[0019] The P1 range extender motor 5 is a low-speed water-cooled motor. The rotor bracket of the P1 range extender motor 5 is equipped with an interface that matches the engine crankshaft and is driven and connected to the crankshaft at the engine output end. The stator of the P1 range extender motor 5 is fixedly connected to the engine housing. The three high-voltage output interfaces, the resolver signal interface, and the low-voltage temperature signal interface of the P1 range extender motor 5 are all connected to the controller 1. Multiple signals are collected at the controller 1 and centrally transmitted to the vehicle system.

[0020] The electromagnetic scheme of the P1 range extender motor 5 preferably uses a 270mm stator. The stator housing of the P1 range extender motor 5 is provided with a connecting flange that matches the engine connecting flange plate. The stator of the P1 range extender motor 5 is fixedly connected to the engine housing through the connecting flange.

[0021] The controller 1 is equipped with a water inlet 6. The cooling pipes inside the controller 1 are connected to the cooling pipes of the P1 range extender motor 5. The cooler supplies coolant, which enters the controller 1 through the water inlet 6 to cool the capacitor and IGBT. The coolant then flows into the P1 range extender motor 5 to cool the stator. Finally, the coolant is discharged from the water outlet on the P1 range extender motor 5 to the cooler to form a cooling cycle.

[0022] The P3 drive motor 2 is preferably a 220mm high-speed oil-cooled motor. The P3 drive motor 2 shares a cavity with the transmission mechanism 4. The transmission mechanism 4 is equipped with a speed-increasing gear. The P3 drive motor 2 is connected to the transmission mechanism 4 through a transmission gear pair. An oil-cooling pipeline is installed in the cavity. The oil-cooling pipeline is connected to the oil cooler 3. When the oil cooler 3 operates, it pumps cooling oil into the oil-cooling pipeline to cool the stator and transmission gear pair of the P3 drive motor 2 and form an oil-cooling cycle.

[0023] When the system is in use, the P1 range extender motor 5 is arranged on the output end of the engine through a crankshaft direct connection, and the output end of the transmission mechanism 4 is connected to the vehicle chassis for transmission, so that it can work with the engine to provide range-extended hybrid drive for the vehicle.

[0024] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hybrid architecture all-in-one integrated range-extending powertrain system, characterized in that: The system includes a controller (1), a P3 drive motor (2), a transmission mechanism (4), and a P1 range extender motor (5). The input end of the P1 range extender motor (5) is directly connected to the crankshaft drive of the engine output end. The P3 drive motor (2) is fixedly mounted on the housing of the P1 range extender motor (5). The controller (1) is fixedly mounted on the P1 range extender motor (5) and the P3 drive motor (2). The controller (1) integrates control components for the P1 range extender motor and the P3 drive motor. The controller (1) is connected to both the P1 range extender motor (5) and the P3 drive motor (2). The input end of the transmission mechanism (4) is connected to the output end of the P3 drive motor (2), and the output end of the transmission mechanism (4) is connected to the transmission of the vehicle chassis.

2. The hybrid architecture all-in-one integrated range-extending power system according to claim 1, characterized in that: The hybrid architecture multi-in-one integrated range-extending power system also includes an oil cooler (3), the cooling oil circuit of which is connected to the cooling pipes of the P3 drive motor (2) and the transmission mechanism (4).

3. The hybrid architecture all-in-one integrated range-extending power system according to claim 2, characterized in that: The controller (1) integrates GCU and MCU. The three-phase copper busbar of the P1 range extender motor (5) is connected to the controller (1). The three-phase copper busbar of the P3 drive motor (2) is connected to the controller (1). The controller (1) is equipped with a low-voltage connector (7) and a two-phase line interface (9) to connect with peripheral components.

4. The hybrid architecture all-in-one integrated range-extending power system according to claim 3, characterized in that: The P1 range extender motor (5) is a water-cooled motor. The rotor of the P1 range extender motor (5) is driven and connected to the crankshaft at the output end of the engine. The stator of the P1 range extender motor (5) is fixedly connected to the engine housing. The three high-voltage output interfaces, the resolver signal interface and the low-voltage temperature signal interface of the P1 range extender motor (5) are all connected to the controller (1).

5. The hybrid architecture all-in-one integrated range-extending power system according to claim 4, characterized in that: The controller (1) is equipped with a water inlet (6), and the cooling pipe inside the controller (1) is connected to the cooling pipe of the P1 range extender motor (5).

6. The hybrid architecture all-in-one integrated range-extending power system according to claim 5, characterized in that: The P3 drive motor (2) shares a cavity with the transmission mechanism (4). The transmission mechanism (4) is equipped with a speed-increasing gear. The P3 drive motor (2) is connected to the transmission mechanism (4) through a transmission gear pair. An oil cooling pipeline is installed in the cavity and is connected to the oil cooler (3).

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