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Dual-motor hybrid driving system

A drive system, dual-motor technology, applied in the direction of motor vehicles, hybrid vehicles, power units, etc., can solve the problems such as the inability to meet the torque requirements during acceleration, the inability to ensure the engine, and the failure to meet the low fuel consumption requirements of the engine. The effect of economy, downsizing of the motor, and low fuel consumption

Inactive Publication Date: 2018-11-02
SCHAEFFLER TECH AG & CO KG
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AI Technical Summary

Problems solved by technology

[0007] In this drive system, if the power of the drive motor is reduced, the torque demand during acceleration will not be met
For this reason, it is necessary to make the engine more involved in the torque output, so that the engine cannot be guaranteed to work in the best fuel economy mode, and the low fuel consumption requirement of the engine cannot be met.

Method used

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Embodiment Construction

[0023] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] The invention provides a dual-motor hybrid drive system, which is used for hybrid electric vehicles. figure 2 As shown, the dual-motor hybrid drive system includes a first drive part 10 and a second drive part 20, which are respectively used to be arranged on the front axle and the rear axle of the car, and are used to drive the front wheels or rear wheels of the car through the corresponding axles. Wheels run.

[0025] Wherein, the first driving part 10 includes: an engine 11, a first gear pair 12, a clutch 13, a first motor 14, and a second gear pair 15 connected sequentially along the power transmission direction, and output to the front through the second gear pair 15. The differential 17 is then output to the front wheel W1 t...

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Abstract

The invention discloses a dual-motor hybrid driving system. The system includes a first driving part and a second driving part which are used for driving axles. The first driving part includes an engine, a first gear pair, a clutch and a first motor which are connected in a power transmission direction in sequence. The second driving part includes a second motor, wherein the transmission ratio ofthe first gear pair is smaller than 1. By means of the scheme, the engine can work within a rotation speed range, and meanwhile, the size of the motors are reduced, wherein the fuel economy within therotation speed range is great.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a dual-motor hybrid drive system. Background technique [0002] With the increasing shortage of energy and the deterioration of the environment, contemporary people pay more and more attention to the economy and environmental protection of transportation tools. In recent years, hybrid electric vehicles have been greatly developed. Major manufacturers are actively studying how to improve the fuel economy of engines while ensuring the driving dynamics requirements of hybrid vehicles. [0003] figure 1 is a drive system layout diagram of a Honda hybrid vehicle, where the dotted lines between components represent communication connections between the two, and the rest represent mechanical connections. In this drive system, the engine and the drive motor are used as the drive source and are all arranged on the front axle of the vehicle. Two PCUs (Power control unit, power control unit) a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/485
CPCB60K6/485B60K2006/4825Y02T10/62
Inventor 母新科
Owner SCHAEFFLER TECH AG & CO KG
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