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Transmission hydraulic system for a transmission with multiple clutches, control method and hydraulic valve thereof

A technology of clutch pressure and transmission, applied in clutch, transmission control, components with teeth, etc., can solve the problem of no longer working normally, and achieve the effect of good acceleration performance, economical structure, and good deceleration performance

Inactive Publication Date: 2012-02-08
HOFER MECHATRONIK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when a pilot valve fails, the remaining three valves will no longer function properly even though there is no real malfunction

Method used

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  • Transmission hydraulic system for a transmission with multiple clutches, control method and hydraulic valve thereof
  • Transmission hydraulic system for a transmission with multiple clutches, control method and hydraulic valve thereof
  • Transmission hydraulic system for a transmission with multiple clutches, control method and hydraulic valve thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0233] figure 1 with figure 2 Shown is a general diagram of the main parts of the dual-clutch hydraulic system. figure 2 The hydraulic controller 100' shown is similar to figure 1 The hydraulic controller 100 shown will be discussed in detail below.

[0234] The hydraulic controller 100 is composed of a plurality of hydraulic components. The multiple hydraulic components include a gear controller 200, a clutch controller 300, and a hydraulic medium preparation device 400. Each component has its corresponding hydraulic circuit or circulation circuit. figure 1 The shown transmission with a hydraulic controller has a hydraulic medium (hydraulic oil) storage tank, which may be referred to as an oil tank 102 for simplicity. The oil pump 104 (for example, a piston pump) forms a negative pressure on the oil inlet side 106 so that the hydraulic oil filtered from the oil tank 102 can enter the oil pump 104. A hydraulic oil filter 116 for filtering hydraulic oil is connected to the o...

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PUM

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Abstract

The invention relates to a transmission hydraulic system for a transmission with multiple clutches and a control method with hydraulic valves for transmissions comprising multiple clutches which provide improved safety during operation. The transmission has a double clutch device for influencing partial transmission parts, where each transmission part has control elements with two-sided hydraulic controllable switching actuators for moving switching collars. Collar selection valves are attached to the actuators, and flow paths influence the actuators using pressurized oil. One of the actuators is attached to the flow paths and the other actuator is attached to other paths provided in connection with a pressurized oil sump in one position of the valves and vice versa in another position of the valves. An independent claim is also included for a method for shifting gears of a transmission.

Description

Technical field [0001] The present invention relates to a transmission having a plurality of clutches that can be arranged in the form of dual clutches, a hydraulic controller, and components suitable for such a hydraulic transmission controller (such as a coupling sleeve selection valve) and a suitable transmission hydraulic system Method of operation. Background technique [0002] Multi-clutch transmissions in automobiles are mainly called "dual clutch transmissions." There are countless types of changes represented by this concept. The main difference between these types of changes lies in the number of gears (for example, whether there are six, seven or more forward gears. ). How to achieve reverse gear in the transmission and how the transmission works. [0003] For example, some dual-clutch transmissions can be called by printed instructions. For example, FR 2 8486209 B1 (Patent Applicant: Renault SAS; Application Date: December 12, 2002) suggests that the same shift fork c...

Claims

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Application Information

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IPC IPC(8): F16H61/12F16H61/688
CPCF16D2048/0233F16D48/0206F16D2048/0278F16H61/0206F16H61/688F16D2048/029F16D2048/0293
Inventor R·瑙曼T·施特立
Owner HOFER MECHATRONIK
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