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Method, evaluation module and vehicle for learning jumps and/or inflection points in operating characteristics of an operating unit

A technology of operating units and operating characteristics, applied in the field of vehicles, can solve the problems of undetectable changes, unsafe, time-consuming, etc., and achieve the effect of saving computing costs, reducing storage requirements, and reducing computing costs

Active Publication Date: 2022-08-02
ZF CV SYST HANNOVER GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of this is that a time-consuming calibration process at the end of the production line is required for each operating unit in order to create the operating characteristics, and an evaluation unit with a memory unit is arranged in each operating unit in order to store the operating characteristics and processed together with the sensed operating stroke
This is the only way to ensure reliable operation when replacing operating units or control units that process calibrated operating signals, since recalibration in the vehicle has hitherto been unsafe
A disadvantage is also that during operation, for example based on wear phenomena, it may not be possible to react reliably to changes in the operating characteristics, since these cannot be detected

Method used

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  • Method, evaluation module and vehicle for learning jumps and/or inflection points in operating characteristics of an operating unit
  • Method, evaluation module and vehicle for learning jumps and/or inflection points in operating characteristics of an operating unit
  • Method, evaluation module and vehicle for learning jumps and/or inflection points in operating characteristics of an operating unit

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Embodiment Construction

[0056] according to figure 1 A vehicle 1 , in particular a commercial vehicle 1 , is shown with an electrically controllable braking system 2 and an electrically controllable drive system 3 . The brake operating unit 2a has, as part of the brake system 2, a brake operating mechanism 2b, such as a brake pedal or a parking brake lever or an anti-slip brake lever, which can be manually actuated by the driver or automatically by an operating system , and the determined brake operating stroke sB can be offset here. In a corresponding manner, the drive operating mechanism 3b (eg the accelerator pedal, the drive operating unit 3a of the drive system 3) can be shifted manually or automatically by the drive operating stroke sA. The respective operating strokes sB, sA can be known via the stroke sensors 2c, 3c in the respective operating units 2a, 3a.

[0057] Depending on the respective actuation path sB, sA, the brake actuation signal BB or the drive actuation signal BA is supplied ...

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Abstract

The invention relates to a method for determining a transition (Mi) and / or an inflection point (Li) in an operating characteristic (F) of an operating unit, wherein the operating unit can be operated via an operating mechanism, wherein the operating characteristic (F) defines different actuating regions (Nk) separated from one another by transitions (Mi) and / or inflection points (Li), wherein different actuating forces (PF) for actuating the actuating mechanism are respectively set in the actuating regions (Nk) ), wherein the jump (Mi) and / or the inflection point (Li) are learned by operating the operating mechanism (2b, 3b) by: - ​​continuously learning the operating stroke (sB, sA) of the operating mechanism, - giving the learned The operating strokes (sB, sA) of , respectively, are assigned to the operating speed characteristic variables, so that a pair of values ​​is continuously formed from the known operating strokes (sB, sA) and the assigned operating speed characteristic variables, wherein the operating speed characteristic variables depend on the operating mechanism is formed from the operating speed, and - according to the formed value pair, it is checked whether there is a significant change in the operating speed, wherein the operating characteristic (F) is assigned to the operating stroke (sB, sA) on which there is a significant change in the operating speed. ) in the transition (Mi) and / or the inflection point (Li).

Description

technical field [0001] The invention relates to a method for determining jumps and / or inflection points in the operating characteristics of an operating unit, an evaluation module and a vehicle for carrying out the method. Background technique [0002] Foot-operated or hand-operated operating units are provided for influencing the driving dynamics of the vehicle, which can be actuated mechanically by the driver or automatically via operating means (eg foot-operated pedals or hand-operated levers). Thus, for example, the driver can deflect the brake pedal or the accelerator pedal or the parking brake lever or the anti-knock brake lever by a certain operating range, thereby causing the vehicle to be braked or accelerated in a corresponding manner. For this purpose, electrical operating signals can be output from the respective operating unit, which electrical operating signals characterize the respective operation and which can then be processed further by a control unit (ECU)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05G5/03B60K26/02B60T8/172F02D11/10G05G1/30B60T7/04
CPCG05G5/03G05G1/30F02D11/106B60K26/021B60T7/02F02D41/2432B60T2270/413B60T2220/04B60K2026/023B60W10/04B60W10/18B60W50/045
Inventor 阿尔内·米夏埃尔森
Owner ZF CV SYST HANNOVER GMBH