Flywheel integrated multi-power source hybrid power unit

Abstract

The invention discloses a flywheel integrated multi-power source hybrid power unit which comprises a first power source flywheel, a flywheel brake, a first clutch, a second power source motor, a sun wheel brake, a gear ring, a second clutch, a third power source, a planet carrier and a sun wheel, wherein the first power source flywheel, the first clutch and the planet carrier are arranged on a first transmission shaft; the second power source motor and the sun wheel are arranged on a second transmission shaft; and the third power source and the second clutch are arranged on a third transmission shaft. By controlling the clutches and the brakes, driven or regenerative brake operating modes of the third power source alone, the second power source motor and the third power source, the first power source flywheel and the third power source as well as the first power source flywheel, the second power source motor and the third power source can be realized, and switch of the multiple operating modes contributes to improving the vehicle energy utilization efficiency.

Description

technical field [0001] The invention relates to an electric vehicle power device, in particular to a multi-power source hybrid power device integrating a flywheel. Background technique [0002] Most of the existing hybrid power devices with two or more power sources adopt motor-motor hybrid or engine-motor hybrid technical solutions. Through energy management and coordinated control of two or more power sources, the economical efficiency of new energy vehicles can be improved. . However, whether it is a motor-motor power hybrid solution or a motor-engine hybrid power solution, there are the following common problems: load mutation conditions, such as rapid acceleration, rapid deceleration conditions, etc., in order to meet the driving needs of the vehicle, the motor power often increases. Large changes, which in turn cause large-current discharge or charging of the vehicle power battery, affecting the working efficiency and service life of the motor and battery; It is ofte...

AI Technical Summary

Problems solved by technology

However, whether it is a motor-motor power hybrid solution or a motor-engine hybrid power solution, there are the following common problems: load mutation conditions, such as rapid acceleration, rapid deceleration conditions, etc., in order to meet the driving needs of the vehicle, the motor power often increases. Large changes, which in turn cause large-current discharge or charging of the vehicle power battery, affecting the working efficiency and service life of the motor and battery; It is often unable to participate in the regenerative braking of the whole vehicle, resulting in a waste of braking energy, and the energy utilization efficiency of the whole vehicle needs to be further improved

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