Hybrid architecture all-in-one integrated range extending power system

Abstract

The invention provides a hybrid architecture all-in-one integrated range extending power system, and belongs to the technical field of automobile range extending driving. The system is high in integration degree, compact in structure and good in lightweight effect. According to the system, a P1 range-extending motor rotor is directly connected with a crankshaft at the output end of an engine, a P3 driving motor is fixedly arranged on a shell of the P1 range-extending motor, a controller is fixedly arranged on the P1 range-extending motor and the P3 driving motor, a P1 range-extending motor control component and a P3 driving motor control component are integrated in the controller, and the P1 range-extending motor control component and the P3 driving motor control component are fixedly arranged on the shell of the P1 range-extending motor. The input end of the transmission mechanism is connected with the output end of the P3 driving motor, and the output end of the transmission mechanism is in transmission connection with an automobile chassis. According to the system, the P1 range extending motor is directly connected to the engine, the P3 driving motor and the transmission mechanism are integrated, the axial size is integrally reduced, the layout of the cooling system is optimized, the overall integration degree is high, the space of an automobile cabin is saved, and the light weight requirement is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile range-extending drive, and in particular relates to a hybrid architecture all-in-one integrated range-extending power system. Background Art

[0002] With the rapid development of new energy vehicles, new energy motors and electronic controls are developing with a focus on high integration and lightweighting. Currently, the hybrid architecture parallel-shaft hybrid transmissions used on the market employ a solution where the P1 motor is often a high-speed, oil-cooled motor with an integrated speed-increasing mechanism. The engine crankshaft transmits power through a flywheel and torsional vibrations to the speed-increasing gear, which then acts on the P1 motor for power generation. This results in a low level of integration, poor overall layout compactness, and a large chassis footprint, failing to meet current demands for lightweight automotive design. Summary of the Invention

[0003] In order to solve the problems existing in the above-mentioned background technology, the present invention provides a hybrid architecture all-in-one integrated extended-range power system, which has a high degree of integration, a compact structure and a good lightweight effect.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a hybrid architecture all-in-one integrated extended-range power system, including a controller, a P3 drive motor, a transmission mechanism and a P1 extended-range motor, the P1 extended-range motor rotor is directly connected to the crankshaft at the engine output end, the P3 drive motor is fixedly arranged on the housing of the P1 extended-range motor, the controller is fixedly arranged on the P1 extended-range motor and the P3 drive motor, the controller internally integrates the P1 extended-range motor control components and the P3 drive motor control components, the controller 1 is controlled and connected to the P1 extended-range motor 5 and the P3 drive motor 2, the transmission mechanism input end is connected to the P3 drive motor output end, and the transmission mechanism output end is connected to the vehicle chassis.

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

[0006] The controller is integrated with GCU and MCU. The three-phase copper busbar of the P1 range extender motor is connected to the controller. The three-phase copper busbar of the P3 drive motor is connected to the controller. The controller is provided with a low-voltage connector and a two-phase line interface to connect with peripheral components.

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

[0008] The controller is provided with a water inlet nozzle, and the cooling pipeline in the controller is connected with the cooling pipeline of the P1 range extender motor.

[0009] The P3 drive motor is shared with the transmission mechanism cavity, a speed increasing gear is provided in the transmission mechanism, the P3 drive motor is connected to the transmission mechanism through a transmission gear pair, an oil cooling pipeline is provided in the cavity, and the oil cooling pipeline is connected to the oil cooler.

[0010] Beneficial effects of the present invention: The present invention provides an all-in-one integrated extended-range power system with a hybrid architecture, in which there is no transmission structure such as a transmission gear and a planetary gear between the P1 extended-range motor rotor and the engine, and the rotor bracket is provided with an engine crankshaft matching interface and an installable rotor core, and the spline shaft and high-speed bearing of the common oil-cooled motor can be omitted, thereby simplifying the structure; the system integrates the transmission mechanism with the P3 drive motor, and uniformly plans and arranges the cooling pipeline, thereby simplifying the overall structure; the system has an overall reduced axial dimension, which is convenient for arrangement in the vehicle cabin, saving cabin space, and meeting lightweight requirements; the P1 extended-range motor of the system adopts water cooling and is directly connected to the engine. The engine does not participate in driving the P1 extended-range motor and only serves to generate electricity, which simplifies the engine's operating point selection changes and enables better operating conditions such as optional performance and NVH; this solution combines the P1 extended-range motor with the P3 motor and the transmission mechanism of the direct-connected architecture to achieve a deeper degree of integration and lightweight. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In the attached figure: Figure 1 It is an axonometric drawing of the overall structure of the present invention; Figure 2 It is a top view of the overall structure of the present invention; In the figure: 1. Controller; 2. P3 drive motor; 3. Oil cooler; 4. Transmission mechanism; 5. P1 range extender motor; 6. Water inlet nozzle; 7. Low-voltage connector; 8. Two-phase line cover; 9. Two-phase line interface. DETAILED DESCRIPTION

[0012] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0013] A hybrid architecture all-in-one integrated range-extending power 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 arranged on the housing of the P1 range-extending motor 5. The controller 1 is fixedly arranged on the P1 range-extending motor 5 and the P3 drive motor 2. The P1 range-extending motor control components and the P3 drive motor control components are integrated inside the controller 1. The controller 1 is controlled and connected to 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.

[0014] The hybrid architecture all-in-one integrated range-extended 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 has an integrated oil pump. When the oil cooler 3 is in operation, the P3 drive motor 2 and the transmission mechanism 4 are cooled and dissipated.

[0015] The controller 1 is integrated with the GCU and MCU. The three-phase copper busbar of the P1 range extender motor 5 is connected to the controller 1, and the three-phase copper busbar of the P3 drive motor 2 is connected to the controller 1. The controller 1 is provided with a low-voltage connector 7 and a two-phase line interface 9 to connect with peripheral components. An operation port is provided on the shell of the controller 1. The operation port is used to screw the fixing screws of the two-phase high-voltage lines. The operation port is detachably fixed with a two-phase line cover 8.

[0016] The P1 range-extending motor 5 is a low-speed water-cooled motor. An interface matching the engine crankshaft is provided on the bracket of the rotor of the P1 range-extending motor 5, which is connected to the crankshaft drive of the engine output end. The stator of the P1 range-extending motor 5 is fixedly connected to the engine housing. The three high-voltage line output interfaces, the resolver signal interface and the temperature signal low-voltage line interface of the P1 range-extending motor 5 are all connected to the controller 1. Various signals are collected at the controller 1 and transmitted to the vehicle system.

[0017] The motor electromagnetic scheme of the P1 range-extending motor 5 preferably uses a 270mm stator. A connecting flange that matches the engine connecting flange is provided on the stator housing of the P1 range-extending motor 5. The stator of the P1 range-extending motor 5 is fixedly connected to the engine housing through the connecting flange.

[0018] A water inlet nozzle 6 is provided on the controller 1, and the cooling pipeline in the controller 1 is connected with the cooling pipeline of the P1 range extender motor 5. The cooler supplies coolant from the water inlet nozzle 6 into the controller 1 to cool the capacitor and IGBT, and then the coolant flows into the P1 range extender motor 5 to cool the stator, and is finally discharged from the water outlet nozzle provided on the P1 range extender motor 5 to the cooler to form a cooling cycle.

[0019] 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. A speed-increasing gear is provided in the transmission mechanism 4. The P3 drive motor 2 is connected to the transmission mechanism 4 through a transmission gear pair. An oil cooling pipeline is provided in the cavity. The oil cooling pipeline is connected to the oil cooler 3. The oil cooler 3 operates to pump 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.

[0020] When the system is in use, the P1 range-extending motor 5 is arranged on the output end of the engine through a direct crankshaft connection, and the output end of the transmission mechanism 4 is connected to the vehicle chassis for transmission, so that the vehicle can be driven by the engine in an extended-range hybrid manner.

[0021] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A hybrid architecture all-in-one integrated range-extended power system, characterized by: The invention comprises a controller (1), a P3 drive motor (2), a transmission mechanism (4) and a P1 range-extending motor (5), wherein 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 arranged on the housing of the P1 range-extending motor (5), the controller (1) is fixedly arranged on the P1 range-extending motor (5) and the P3 drive motor (2), the controller (1) is internally integrated with the P1 range-extending motor control components and the P3 drive motor control components, the controller (1) is controlled and connected to 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 chassis of the vehicle.

2. The hybrid architecture all-in-one integrated range-extended power system according to claim 1, characterized in that: The hybrid architecture all-in-one integrated range-extending power system further comprises an oil cooler (3), wherein 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).

3. The hybrid architecture all-in-one integrated range-extended power system according to claim 2, characterized in that: The controller (1) is integrated with a GCU and an MCU. The three-phase copper busbar of the P1 range-extending 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 provided with a low-voltage connector (7) and a two-phase line interface (9) for connection with peripheral components.

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

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

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

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