CONTROLLED LOAD DEVICE AND MANUFACTURING METHOD FOR A CONTROLLED LOAD DEVICE

• US 20200136475A1
• Filed: 04/19/2018
• Published: 04/30/2020
• Est. Priority Date: 06/09/2017
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Kubach, Michael, Huebl, Jochen, Kralicek, Peter
• Granted Patent: US 10,978,938 B2
• Time in Patent Office: Days
• CPC Class Codes: B60L 2270/147 electro magnetic [EMI]
• CPC Class Codes: G01R 17/02 Arrangements in which the value to be measured is automatically compared with a reference value
• CPC Class Codes: H02K 11/00 Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection casings, enclosures or supports H02K5/00
• CPC Class Codes: H02K 11/20 for measuring, monitoring, testing, protecting or switching rectifiers H02K11/04; power electronics H02K11/33
• CPC Class Codes: H02P 6/10 Arrangements for controlling torque ripple, e.g. providing reduced torque ripple
• CPC Class Codes: H04B 15/00 Suppression or limitation of noise or interference by means associated with receiver H04B1/10
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility

Abstract

A controlled load device including a load, a control electronics unit, which is connected via at least one conductor to the load in such a way that the load may be switched and/or energized via at least one electrical signal relayed via the at least one conductor, and at least one first electromechanical feedback component, which is designed for guiding or feeding back high-frequency interference signals from the load into the control electronics unit, the load connected via the at least one conductor to the control electronics unit having a load impedance including a load impedance minimum at a load impedance minimum frequency, and the first electromechanical feedback component having a first feedback impedance including a first feedback impedance minimum at a first feedback impedance minimum frequency between 1% of the load impedance minimum frequency and 100% of the load impedance minimum frequency.

Claims

1-15. -15. (canceled)

16. A controlled load device, comprising:

a load;

a control electronics unit connected via at least one conductor to the load in such a way that the load is switched and/or energized via at least one electrical signal relayed via the at least one conductor, the load connected via the at least one conductor to the control electronics unit having a load impedance including a load impedance minimum at a load impedance minimum frequency; and

at least one first electromechanical feedback component configured to guide or feeding back high-frequency interference signals from the load into the control electronics unit, wherein the first electromechanical feedback component has a first feedback impedance including a first feedback impedance minimum at a first feedback impedance minimum frequency between 1% of the load impedance minimum frequency and 100% of the load impedance minimum frequency.

17. The controlled load device as recited in claim 16, wherein the first electromechanical feedback component has the first feedback impedance including the first feedback impedance minimum at the first feedback impedance minimum frequency between 10% of the load impedance minimum frequency and 100% of the load impedance minimum frequency.

18. The controlled load device as recited in claim 17, wherein the first electromechanical feedback component has the first feedback impedance including the first feedback impedance minimum at the first feedback impedance minimum frequency between 20% of the load impedance minimum frequency and 100% of the load impedance minimum frequency.

19. The controlled load device as recited in claim 18, wherein the first electromechanical feedback component has the first feedback impedance including the first feedback impedance minimum at the first feedback impedance minimum frequency between 40% of the load impedance minimum frequency and 100% of the load impedance minimum frequency.

20. The controlled load device as recited in claim 16, wherein the first feedback impedance minimum frequency of the first electromechanical feedback component is established using a quality and/or a resonant frequency of the first electromechanical feedback component.

21. The controlled load device as recited in claim 16, wherein the controlled load device includes, as the first electromechanical feedback component, a first feedback spring, and/or a first feedback contact, and/or a first screw connection.

22. The controlled load device as recited in claim 16, wherein the controlled load device also includes, in addition to the first electromechanical feedback component, a second electromechanical feedback component, which is configured to guide or feeding back the high-frequency interference signals from the load into the control electronics unit.

23. The controlled load device as recited in claim 22, wherein a parallel circuit made up of the load connected via the at least one conductor to the control electronics unit and the second electromechanical feedback component includes a parallel circuit impedance maximum at a parallel circuit impedance maximum frequency.

24. The controlled load device as recited in claim 22, wherein the second electromechanical feedback component has a second feedback impedance including a second feedback impedance minimum at a second feedback impedance minimum frequency less than the load impedance minimum frequency, and the second feedback impedance minimum frequency is less than 50% of the load impedance minimum frequency.

25. The controlled load device as recited in claim 22, wherein the controlled load device includes, as the second electromechanical feedback component, a second feedback spring, and/or a second feedback contact, and/or a second screw connection.

26. The controlled load device as recited in claim 16, wherein the load is a motor, and/or a valve, and/or a light-emitting unit, and/or an electronic device.

27. The controlled load device as recited in claim 16, wherein the load is installable or installed in and/or on a vehicle.

28. The controlled load device as recited in claim 27, wherein the load is an electric brake booster motor, and/or a pump motor, and/or or a braking system valve.

29. A manufacturing method for a controlled load device, comprising the following steps:

connecting a load of the controlled load device via at least one conductor to a control electronics unit of the controlled load device in such a way that the load is switched and/or energized using at least one electrical signal relayed via the at least one conductor, the load connected via the at least one conductor to the control electronics unit having a load impedance including a load impedance minimum at a load impedance minimum frequency;

providing at least one first electromechanical feedback component configured to guide or feeding back high-frequency interference signals from the load into the control electronics unit; and

establishing a first feedback impedance of the first electromechanical feedback component including a first feedback impedance minimum at a first feedback impedance minimum frequency between 1% of the load impedance minimum frequency and 100% of the load impedance minimum frequency.

30. The manufacturing method as recited in claim 29, wherein the first feedback impedance minimum frequency of the first electromechanical feedback component is established using a quality and/or a resonant frequency of the first electromechanical feedback component.