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Device, arrangement and method for determining an angle between a rotor and a stator

An angle and stator technology, which is applied in the field of angle devices, can solve the problems of old measurement values ​​and the influence of motor control accuracy, and achieve the effects of minimization of changes and small signal propagation time

Pending Publication Date: 2021-07-23
海拉有限双合股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This variation in data negatively affects the precision of the motor control being sought
The longer the processing time, the older the measurement of the angle at a certain point in time may be

Method used

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  • Device, arrangement and method for determining an angle between a rotor and a stator
  • Device, arrangement and method for determining an angle between a rotor and a stator
  • Device, arrangement and method for determining an angle between a rotor and a stator

Examples

Experimental program
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Effect test

Embodiment Construction

[0047] In the various figures, identical components are provided with the same reference numerals.

[0048] exist figure 1 A block diagram of a first arrangement system 2 according to the invention for determining the angle Φ_est between the rotor and the stator is shown in .

[0049] The block diagram shows an arrangement 2 with two channels, which, however, can be transferred without restriction to arrangements with other numbers of channels.

[0050]The electrical signals 15 , 16 detected by the sensor system are transmitted to the arrangement system 2 . The sensor system is not shown in more detail in this block diagram, since it is generally known in the prior art. The illustrated embodiment is based on a two-channel inductive sensor. In this case, sensor systems with more or fewer channels and with other measuring principles, for example magnetic and / or capacitive, are entirely conceivable.

[0051] In principle, the sensor system in the shown case consists of an exc...

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PUM

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Abstract

The invention relates to a device (1) for determining a first angle (phi) between a rotor and a stator, having inputs for reading amplitudes (3, 4) of electrical signals (15, 16) detected via a sensor system and representing a first angle (phi), wherein the device (1) has an angle estimator (6) for estimating a second angle (phi_est), the device (1) has means for ascertaining (7, 8) amplitudes (7, 8) representing the second, estimated angle (phi_est), the device (1) has at least one closed-loop controller, by means of which at least one difference (9, 10) between amplitudes (3,4) representing the first angle (phi) and amplitudes (7, 8) representing the second, estimated angle (phi_est) can be minimized, and the second, estimated angle (phi_est) can be provided via an output (5).

Description

technical field [0001] The invention relates to a device, an arrangement and a method for determining an angle between a rotor and a stator. Background technique [0002] The rotor and the stator are in particular part of a rotating electric machine, wherein here in particular synchronous and asynchronous machines play a more important role. [0003] Modern drive technologies such as traction drives in electric vehicles currently generally use permanently excited synchronous electric machines. [0004] These synchronous machines comprise, for example, rotatably mounted permanent magnets which are positioned within the stator coil system. The stator coil system is used to generate a rotating field which moves the rotor. Determined by the principle, the rotational speed of the stator and the rotor are the same. [0005] However, in order to provide the desired torque, the phase offset is adjusted in a targeted manner so that the stator field leads the rotor by a certain ang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/182H02P21/24
CPCH02P6/182H02P21/24G01D5/2053G01D3/028G01B7/30G01D5/20G05B19/33G05B2219/41065H02K24/00
Inventor H·伊尔勒F·乌特穆尔勒
Owner 海拉有限双合股份公司