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Pump unit for providing a hydraulic pressure for actuating an actuator in the drive train of a motor vehicle

A hydraulic pressure and pump unit technology, applied in the direction of engine components, engine working fluid, pump components, etc., can solve problems such as damage and high costs

Active Publication Date: 2020-03-20
FTE汽车有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This cable has various disadvantages
First, it is exposed outside the pump unit, so there is a risk of damage
Second, the cable must be reliably sealed as it leaves the pressure sensor and enters the electronic control system, and must be connected to the corresponding contacts
This brings high costs

Method used

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  • Pump unit for providing a hydraulic pressure for actuating an actuator in the drive train of a motor vehicle
  • Pump unit for providing a hydraulic pressure for actuating an actuator in the drive train of a motor vehicle
  • Pump unit for providing a hydraulic pressure for actuating an actuator in the drive train of a motor vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The figures show a pump unit for providing hydraulic pressure (and hydraulic fluid flow) which can be converted into actuation strokes by actuators in the drive train of a motor vehicle. For example, the actuation stroke can be used to close or open a clutch, or it can be used to switch gear stages of a transmission or bring it into a neutral position.

[0038] As a basic component (see for details figure 1 with 2 ), the pump unit has a drive motor 1 , a pump 2 , an electronic control system 3 , two solenoid valves 4 , two pressure sensors 5 , and has a storage container 6 accommodated in a common housing.

[0039] The central part of the pump unit is the pump housing 7 on which the solenoid valve 4 is mounted and on which the storage container 6 is also mounted. A pressure sensor 5 is also mounted on the pump housing 7 .

[0040] On the side opposite the storage container 6 , an electronics housing 8 is mounted on the pump housing 7 , said electronics housing housin...

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PUM

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Abstract

The invention relates to a pump unit for providing a hydraulic pressure for actuating an actuator in the drive train of a motor vehicle, in particular a clutch actuator or gearbox actuator, with a pump (2) which has a pump housing (7) with at least one pressure outlet (20), a pressure sensor (5) which can sense the fluid pressure at the pressure outlet (20), and a printed circuit board (90), whichis arranged in an electronic housing (8) and has an electronic control system (3), characterized in that an inherently stable conductor element (80) is provided which contains at least two electric conductors (82) which are encased with plastic (84), wherein the conductor element (80) extends from the pressure sensor (5) as far as the printed circuit board (90) and has at least one seal (96, 98,100).

Description

technical field [0001] The invention relates to a pump unit for providing hydraulic pressure for actuating an actuator, in particular a clutch actuator or a gearbox actuator, in the drive train of a motor vehicle, the pump The unit has a pump having a pump housing with at least one pressure outlet, a pressure sensor capable of sensing fluid pressure at the pressure outlet, and a printed circuit board disposed in the electronics housing and having electronic control system. Background technique [0002] The pump unit is used to provide hydraulic pressure which is controlled or regulated by actuation of solenoid valves. Hydraulic pressure can be used to shift a clutch between open and closed positions, or in the case of a transmission actuator, to shift a specific gear stage. [0003] In the prior art, the pressure sensor is connected to the electronic control system by a cable that runs outside the pump housing from the pressure sensor to the printed circuit board. Such ca...

Claims

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Application Information

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IPC IPC(8): F04B49/06F04B49/08F04B53/16H01R31/06H01R13/52H01R13/46H01R13/24H01R13/03H01R12/71
CPCF04B49/06F04B49/08F04B53/16H01R31/06H01R13/5202H01R13/46H01R13/2414H01R13/03H01R12/71H01R2201/20F04B53/22F04C2/3447F04C2240/803F04B53/00F04B17/03F05B2210/11F05B2240/57
Inventor P.盖格纳K.埃伯特
Owner FTE汽车有限责任公司
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