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Control module for driving the engine

An engine and engine system technology, which is applied in the direction of connection with control/drive circuits, electromechanical devices, and electric components, and can solve problems such as limited degrees of freedom

Inactive Publication Date: 2017-09-01
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in a limited degree of freedom when constructing a motor system with a drive motor and a corresponding control unit with a magnetic field sensor, since the magnetic field sensor must be arranged in a specific orientation for the magnetic field to be detected.

Method used

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  • Control module for driving the engine
  • Control module for driving the engine
  • Control module for driving the engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] figure 1 A schematic diagram of a motor system 1 with a drive motor 2 and a control unit 3 with a printed circuit board 4 and components arranged thereon, such as a microcontroller 5 etc., is shown. Microcontroller 5 can be designed as an SMD component, which allows simple production of the control device.

[0029] The drive motor 2 can be designed, for example, as an electric motor, in particular as an electronically commutated electric motor, wherein the position or orientation of the rotor shaft 6 must be detected for actuating the stator coils (not shown) in order to be able to adjust the position accordingly. The operation of driving the engine 2 is performed in this manner. With the aid of the rotor position information, the microcontroller 5 of the control device 3 can set a suitable commutation for the stator coils, ie energize the stator coils in a suitable manner at each point in time.

[0030] A common method for detecting the rotor position consists in arr...

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PUM

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Abstract

The invention relates to a control device (3) for operating a drive motor (2), comprising: - a circuit board (4) with control electronics; - a magnetic field for detecting changes in the magnetic field and for providing corresponding sensor signals A sensor (8), wherein the control electronics is configured to determine the rotor position of the rotor driving the motor (2) from the sensor signal, characterized in that the magnetic field sensor (8) is configured to detect are the magnetic field variations in three spatial directions.

Description

technical field [0001] The invention relates to engine systems and in particular to a control module for driving a motor comprising in an integrated manner components for controlling and for detecting the position of a rotor of the driving motor. Background technique [0002] For the compact design of the engine system, the control unit and the drive engine are often arranged in a compact manner relative to one another. This applies in particular to electronically commutated electric motors, since there must be provided a logic circuit for actuating the stator coils and, moreover, detection of the rotor position must often be carried out. [0003] To detect the rotor position, magnetic field sensors are usually used, such as Hall sensors, which detect changes in the magnetic field due to the movement of the rotor driving the motor. For example, in the case of a rotating electric motor, the rotor shaft can be equipped with a ring magnet which moves past the magnetic field se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K11/30H02K29/08
CPCH02K29/08H02K11/215
Inventor H·布斯J·默克勒
Owner ROBERT BOSCH GMBH