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A new energy vehicle automatic transmission hydraulic system

A technology for automatic transmissions and new energy vehicles, which is applied to fluid pressure actuation system components, transmission control, fluid pressure actuation devices, etc., and can solve the problems of large demand and low efficiency of oil pumps

Active Publication Date: 2020-10-27
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new energy vehicle automatic transmission hydraulic system to solve the technical problems in the prior art that the hydraulic system has a large demand for oil pumps and low efficiency

Method used

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  • A new energy vehicle automatic transmission hydraulic system
  • A new energy vehicle automatic transmission hydraulic system
  • A new energy vehicle automatic transmission hydraulic system

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Embodiment Construction

[0027] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention provides a hydraulic system for an automatic transmission of a new energy automobile, relating to the technical field of hydraulic drive. The hydraulic system comprises an oil supply, pressure-regulating and flow control system, a clutch gearshift control system and a cooling lubricating system. The oil supply, pressure-regulating and flow control system comprises a mechanical oil pump and an electronic oil pump, both of which are connected in parallel. The clutch gearshift control system comprises at least two clutch control oil ways which are connected in parallel. The coolinglubricating system comprises multiple cooling lubricating oil ways which are connected in parallel. The hydraulic system is applied to a pure-electric automatic transmission with multiple gears or a special-purpose hybrid-power transmission. The hydraulic system can be developed into a hydraulic system of an automatic transmission with any gear number by parallelly adding clutch control oil ways and can be applied to a P-series hybrid power system. The hydraulic system adopts a working mode that the electronic oil pump assists the mechanical oil pump. Therefore, efficiency of the system is increased.

Description

technical field [0001] The invention relates to the technical field of hydraulic transmission, in particular to a hydraulic system for an automatic transmission of a new energy vehicle. Background technique [0002] Automatic transmission is an important part of automobile powertrain. Its actuator is driven by hydraulic system, which has the advantages of high shift quality, high control precision and good stability. Therefore, the performance of the hydraulic system is a direct factor affecting the shifting quality of the automatic transmission. [0003] At present, in the field of pure electric vehicles, it is an effective technical solution to solve the current low mileage, insufficient power, and high motor cost by matching an automatic transmission with high performance and no power interruption; in the field of hybrid electric vehicles, the development of multiple gears The dedicated hybrid transmission with a single bit and the P-series hybrid transmission based on t...

Claims

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Application Information

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IPC IPC(8): F16H61/4043F16H61/4035F15B11/17F15B21/0423F15B21/041F15B13/06
CPCF15B11/16F15B13/06F15B21/041F16H61/4035F16H61/4043
Inventor 刘艳芳孙文博蔡甜媛徐向阳董鹏
Owner BEIHANG UNIV
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