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Method and device for determining an engagement point of a hybrid clutch in a hybrid vehicle

A technology for hybrid vehicles and separation clutches, which is applied to the arrangement of multiple prime movers and clutches of hybrid vehicles and general-purpose power plants, and can solve problems such as long duration, shorten the adjustment process, shorten the duration, The effect of shortening the start-up procedure

Active Publication Date: 2017-02-15
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of this knowledge of the engagement point is that the adjustment of the engagement point during start-up takes too long for the adjustment of the engagement point during driving operation of the hybrid vehicle.

Method used

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  • Method and device for determining an engagement point of a hybrid clutch in a hybrid vehicle
  • Method and device for determining an engagement point of a hybrid clutch in a hybrid vehicle
  • Method and device for determining an engagement point of a hybrid clutch in a hybrid vehicle

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Embodiment Construction

[0021] figure 1 A schematic diagram showing a drive train of a hybrid vehicle. Drive train 1 includes an internal combustion engine 2 and an electric motor 3 . Between the internal combustion engine 2 and the electric motor 3 , directly downstream of the internal combustion engine 2 is arranged a hybrid separation clutch 4 . The internal combustion engine 2 and the hybrid separating clutch 4 are connected to each other via a crankshaft 5 . The electric motor 3 has a rotatable rotor 6 and a fixed stator 7 . The output shaft 8 of the hybrid separating clutch 4 is connected to a transmission 9 , which contains coupling elements not further shown, such as a second clutch or a torque converter, which are arranged between the electric motor 3 and the transmission 9 . The transmission 9 transmits the torque generated by the internal combustion engine 2 and / or the electric motor 3 to drive wheels 10 of the hybrid vehicle. The hybrid disconnect clutch 4 and the transmission 9 here ...

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Abstract

The invention relates to a method for determining an engagement point of a hybrid clutch (4) in a hybrid vehicle; said hybrid clutch (4) is actuated by a hydrostatic clutch actuator (12) and disconnects or connects an internal combustion engine (2) and an electric traction drive (3); the engagement point is determined by slowly actuating the clutch starting from a position in which the hybrid clutch (4) is in the non-actuated state, and monitoring a moment of the electric traction drive (3) when a defined increase in the momentum is detected. In a method in which engagement point adaptation is optimized, a current engagement point (tp) is adapted during operation of the hybrid vehicle using a commissioning routine, by means of which a first engagement point is determined when the hybrid vehicle is commissioned; the hybrid clutch (4) is moved close to a previously determined engagement point, and starting from said last determined engagement point, the hybrid clutch (4) is displaced further until the defined increase in the moment is detected.

Description

technical field [0001] The invention relates to a method for ascertaining the engagement point (Tastpunkt) of a hybrid separation clutch of a hybrid vehicle, which is actuated by a hydrostatic clutch actuator, wherein the hybrid separation clutch disconnects or connects an internal combustion engine and an electric traction drive, And when a defined torque increase is detected, starting from the position of the hybrid separation clutch in the non-actuated state, while observing the torque of the electric traction drive, by slowly actuating the hybrid separation clutch when the internal combustion engine is stopped To determine the junction point, the invention also relates to a device for carrying out the method. Background technique [0002] DE 10 2010 024 941 A1 discloses a method for controlling a dual-clutch transmission with at least two drive sub-trains, each of which can be coupled to an internal combustion engine by means of a clutch. During driving operation of a v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D48/06
CPCF16D48/066F16D2500/50236F16D2500/50245F16D2500/50263F16D2500/50281F16D2500/3065F16D2500/3067F16D2500/10412F16D2500/1066F16D2500/70605F16D2500/7041Y10S903/914Y10S903/946Y02T10/62B60K6/387B60K6/46B60Y2200/92B60Y2300/427B60Y2400/42F16D48/08F16D2121/02F16D2500/30412
Inventor 埃哈德·霍德鲁斯
Owner SCHAEFFLER TECH AG & CO KG
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