US 2020/0395841 A1Published application

Method and device for external monitoring of a converter

AssigneeRobert Bosch GmbH

InventorJohannes Schild

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Abstract

The invention relates to a method for the external monitoring of a converter (10), the converter (10) being controlled by means of a first electronic control system (12) and the method being implemented by means of a second electronic control system (14) which is independent from the first electronic control system (12). Said method comprises detection (51) of a current (I) received by the converter (10) and a voltage (U) received by the converter (10) by means of a current/voltage sensor device (16) which is independent from the first electronic control system (12). The invention also relates to a device for monitoring a converter (10), to a computer program product, to a machine-readable storage medium, to a drive train of a motor vehicle, and to a corresponding motor vehicle.

Claims19

Dependent claims

A method for externally monitoring a converter (10), wherein the converter (10) is actuated by means of first control electronics (12) and the method is carried out by means of second control electronics (14), which are independent of the first control electronics (12), having the steps of:

detecting (S1) a current (I) received by the converter (10) and a voltage (U) received by the converter (10) from a current/voltage sensor device (16) that is independent of the first control electronics (12);
ascertaining (S2) an actual output power (P1) provided by the converter (10), by using captured variables of the current (I) received by the converter (10) and the voltage (U) received by the converter (10);
determining (S3) a difference between the ascertained actual output power (P1) and a setpoint output power (P2) of the converter (10);
and
actuating (S4) the converter (10) if an absolute value of a difference between the actual output power (P1) and the setpoint output power (P2) of the converter (10) exceeds a predetermined limit value.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/967,790Filed 28 Dec 2018
Priority: DE 10 2018 201 953.38 Feb 2018
Published: 17 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification29 codes

H02P 29/02
Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors: providing protection against overload without…
B60L 3/003
Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train: relating to inverters
B60L 3/0061
Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train: relating to electrical machines
B60L 3/0084
Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train: relating to control modules

Family

US 11,695,365 B2Related patent
US 2020/0395841 A1This patent

From the US filing history. Foreign family members aren’t listed.

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