A hybrid hydraulic system and vehicle

Abstract

The invention discloses a hybrid power hydraulic system and a vehicle. The system includes a hydraulic oil supply device, a main oil circuit and a cooling oil circuit. The main oil circuit includes a mechanical pump, a motor oil circuit, a clutch oil circuit and a pressure regulating oil The first oil outlet of the hydraulic oil supply device communicates with the oil inlet of the mechanical pump; the motor oil circuit includes a shift pressure valve, a shift flow valve, and a shift directional valve connected in sequence, The clutch oil circuit includes a clutch operating valve and a clutch connected in sequence; the pressure regulating oil circuit is used to adjust the oil pressure in the oil circuit; the cooling oil circuit includes an electronic pump, an electronic pump cooling switching valve, and a motor cooling branch circuit and the clutch cooling branch, the clutch cooling branch includes a clutch pressure valve and a clutch cooling valve connected in sequence, in the present invention, the mechanical pump and the electronic pump provide working pressure oil for motor cooling, clutch operation and gear shifting, improving gear shifting speed and quality, thereby increasing system efficiency.

Description

technical field [0001] The invention relates to the field of vehicle control, in particular to a hybrid power hydraulic system and a vehicle. Background technique [0002] With environmental pollution and increasingly stringent fuel consumption and emission regulations at home and abroad, major automobile companies are focusing on the development of power systems with ultra-high fuel economy. Hybrid power systems that take into account fuel economy and technology maturity have become ideal at this stage. a choice of . Hybrid vehicles use hybrid drive technology, and their power sources include hybrid motors and engines. The so-called hybrid drive technology refers to adding a drive motor to the traditional engine gearbox power system to complete the hybrid output of engine and motor power. [0003] Similar hybrid transmissions on the market usually adopt the operation method of shifting and cooling separately. Typically, oil cooling is used for motor cooling, while clutch ...

AI Technical Summary

Problems solved by technology

[0003] Similar hybrid transmissions on the market usually adopt the operation method of shifting and cooling separately. Typically, oil cooling is used for motor cooling, while clutch and synchronizer shifting operations use electronic shifters or clutch operators. Therefore, shifting and Clutch control is separated from motor cooling, which increases system cost and also increases system space layout

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