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Hydraulic system and hybrid vehicle comprising same

A technology of hydraulic system and hydraulic pump, applied in the field of hydraulic system, can solve the problems of long charging time, low battery performance and short life, and achieve the effect of improving efficiency, realizing shifting quality and smooth shifting quality.

Active Publication Date: 2014-06-25
SHANGHAI E PROPULSION AUTO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electric vehicles have a wide range of energy sources and are ideal clean vehicles. However, current batteries generally have problems such as low performance, high price, short life, and long charging time.

Method used

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  • Hydraulic system and hybrid vehicle comprising same
  • Hydraulic system and hybrid vehicle comprising same

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Embodiment Construction

[0021] Specific embodiments of the present invention will be described in detail below. The following embodiments are only an example of the technical solutions of the present invention, and should not be construed as limiting the protection scope of the present invention.

[0022] figure 1 It is a schematic diagram showing the internal structure of a hybrid vehicle according to an embodiment of the present invention. Such as figure 1 The transmission system of the hybrid vehicle shown includes: a first clutch 6 connected with the engine 1 and an integrated starter generator 3, a second clutch 7 connected with the drive motor 2, a transmission shaft (ie main shaft) 5, a first reduction gear 9. The second reduction gear 10 and the synchronizer 8 . The transmission system transmits power to the wheels 20 through the differential 4 . According to a preferred embodiment of the present invention, figure 1 The first clutch 6 in the transmission system of the hybrid vehicle in t...

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Abstract

The invention discloses a hydraulic system, which comprises a main proportional pressure valve, a first proportional pressure valve, a second proportional pressure valve and a proportional flow valve, wherein the first proportional pressure valve is used for controlling the movement of a piston of a first clutch control oil cylinder which is connected in series with the first proportional pressure valve together with the main proportional pressure valve; the second proportional pressure valve is used for controlling the movement of a piston of a second clutch control oil cylinder which is connected in series with the second proportional pressure valve together with the main proportional pressure valve; and the proportional flow valve is used for controlling the movement of a piston of a synchronizer control oil cylinder which is connected in series with the proportional flow valve together with the main proportional pressure valve. A control unit of the hydraulic system is used for controlling each proportional pressure valve according to information from each pressure sensor for further controlling the on-off states of a first clutch and a second clutch and realizing accurate control over the position of a synchronizer according to information from the pressure sensors and a position sensor.

Description

【Technical field】 [0001] The present invention relates to a hydraulic system, in particular to a hydraulic system installed in a hybrid vehicle. 【Background technique】 [0002] While automobiles bring convenience to people's lives, they also bring about two major problems: energy consumption and environmental pollution. In order to meet the needs of sustainable development of mankind, many countries have started the development of a new generation of cars. Electric vehicles have a wide range of energy sources and are ideal clean vehicles. However, current batteries generally have problems such as low performance, high price, short life, and long charging time. Therefore, hybrid electric vehicles, which take into account the advantages of traditional vehicles and electric vehicles, have gradually become the most mature new energy vehicles in the world and have been promoted and applied due to their better environmental protection, energy-saving effects, and low operating cos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/44B60K6/38B60W10/04B60W10/02B60W10/10B60W20/00B60W10/08
CPCY02T10/6243Y02T10/623Y02T10/62
Inventor 朱军郜可峰袁敏刚陈扬珑
Owner SHANGHAI E PROPULSION AUTO TECH
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