Double-planet-row hybrid power system and control method thereof

Abstract

The invention discloses a double-planet-row hybrid power system and a control method thereof. The double-planet-row hybrid power system comprises an engine, a driving motor, a first planet row and a second planet row, wherein the engine is connected with a first transmission assembly used for power transmission, the first transmission assembly is connected with the first planet row, the first transmission assembly is provided with a first locking device used for power locking, the driving motor is connected with a third transmission assembly, the third transmission assembly is connected with afirst clutch, a second clutch and a third clutch, the first clutch is connected with the third transmission assembly and the second planet row, the second clutch is connected with the third transmission assembly and a fourth transmission assembly, the fourth transmission assembly is mechanically connected with a steering oil pump, the third clutch is connected with the third transmission assemblyand a fifth transmission assembly, and the fifth transmission assembly is mechanically connected with the air compressor. The double-planet-row hybrid power system is advantaged in that the driving motor replaces an engine to drive the steering oil pump and the air compressor to work, fuel oil of the engine is saved, and the arrangement space of a vehicle is not occupied.

Description

technical field [0001] The invention relates to the technical field of hybrid vehicles, in particular to a double planetary row hybrid system and a control method thereof. Background technique [0002] The planetary row refers to a gear system that can rotate around its own rotation axis like a fixed-axis gear, and their rotation axis also rotates with the planet carrier around the axis of other gears. The planetary row is the basis of the transmission mechanism, usually automatic The speed change mechanism of speed changer is all made up of two or more rows of planetary rows. [0003] Auxiliary parts are needed on the vehicle. Auxiliary parts refer to power steering and braking power components necessary for the operation of the car, such as steering oil pump and air compressor. For fuel vehicles, the steering oil pump and air compressor are installed on the engine. Gear transmission, the engine drives the steering oil pump and air compressor to operate, and then provides ...

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Problems solved by technology

[0003] Auxiliary parts are needed on the vehicle. Auxiliary parts refer to power steering and braking power components necessary for the operation of the car, such as steering oil pump and air compressor. For fuel vehicles, the steering oil pump and air compressor are installed on the engine. Gear transmission, the engine drives the steering oil pump and air compressor to operate, and then provides high-pressure oil and high-pressure air sources for power steering and braking; there are two main directions for using auxiliary parts in the hybrid power system of the prior art, which are: 1. Like the traditional car, it is installed on the engine, but when the vehicle is stationary, idling and running at low speed, when power steering and braking are required, the steering oil pump and air compressor need to start to work, so the engine needs to be started frequently, resulting in fuel-saving effect Great discount; 2. Add steering oil pump motor and air compressor motor to the whole vehicle, and the steering oil pump motor and air compressor motor drive the steering oil pump and air compressor respectively. Although it is separated from the engine work, it will increase the use of the vehicle cost, occupying the layout space of the vehicle

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