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Device for actuating a clutch and a manual gearbox, and method for the control thereof

A transmission and clutch technology, which is applied to the device for operating the clutch and switching the transmission and in the field of control, which can solve the problems of expensive and expensive travel sensors, and achieve the effect of simplifying the connection

Inactive Publication Date: 2018-01-12
WABCO GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The combination of accumulator and tank is expensive, as is the travel sensor on each actuator

Method used

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  • Device for actuating a clutch and a manual gearbox, and method for the control thereof
  • Device for actuating a clutch and a manual gearbox, and method for the control thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The electrohydraulic unit 10 has an electric motor 11 , a threaded spindle 12 fixed in the circumferential direction, a hydraulic master cylinder 13 with a working chamber 14 and a piston 15 , and a travel sensor 16 . The stroke sensor 16 here detects the stroke of the piston 15 , but can alternatively be realized by other measures, for example by designing the electric motor 11 as a stepper motor with a positioning sensor. The electric motor 11 is a rotary motor which drives an axially stationary spindle nut (not shown). Instead of a spindle drive with a rotary motor, a linear motor can also be provided. A flow meter (not shown), the signal of which replaces or supplements the signal of stroke sensor 16 , can be arranged on unit 10 or in connected mains line 17 .

[0026] The three lines 19 , 20 , 21 are connected to the working chamber 14 via the main line 17 and the star point 18 . In each of these lines 19 , 20 , 21 there is provided a switching valve 22 , 23 , 24...

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PUM

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Abstract

The invention relates to a device for actuating a clutch and a manual gearbox, having an electrohydraulic assembly (10) which has an electric drive and a hydraulic pump and is connected via a plurality of hydraulic lines (19, 20, 21) to a slave cylinder (25) for actuating the clutch and to one or more slave cylinders (26, 27) for actuating the manual gearbox, wherein the lines (19, 20, 21) can beshut off by way of valves (22, 23, 24). According to the invention, a controller is provided in such a way that the position of the slave cylinders (25, 26, 27) can be calculated from the actuation ofthe electrohydraulic assembly (10).

Description

technical field [0001] The invention relates to a device according to the preamble of claim 1 , a method according to the preamble of claim 11 and a controller according to claim 15 . Background technique [0002] In a motor vehicle, the drive train typically consists mainly of the following components, namely the engine, the clutch and the transmission. Clutches and transmissions can be configured automatically. The goal here is comfortable handling and / or economical handling in order to increase the service life. [0003] Pneumatically controlled clutch actuators and transmission actuators are known which utilize the compressed air present in medium and heavy duty vehicles. This actuator cannot be used on vehicles without a compressor. [0004] Hydraulic actuators are likewise known, which have an electric motor, a pump, an energy store (hydraulic accumulator), an oil tank and stroke sensors on each actuator. The combination of the accumulator and the tank is expensive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/02B60W10/10B60W30/18F16D48/02F16H61/00F16H61/02F16H61/30
CPCF16H61/0021B60W10/02B60W10/10F16D48/0206F16D2048/0266F16D2048/0272F16D2048/0278F16H61/0267F16H61/30F16H2061/304
Inventor 德特勒夫·施米特
Owner WABCO GMBH
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