Invention Grant
- Patent Title: Method and control device for protection time setting in an electric drive system
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Application No.: US14114282Application Date: 2012-02-28
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Publication No.: US09634553B2Publication Date: 2017-04-25
- Inventor: Julia Roessler , Martin Trunk , Andreas Schoenknecht , Tim Bruckhaus
- Applicant: Julia Roessler , Martin Trunk , Andreas Schoenknecht , Tim Bruckhaus
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Michael Best & Friedrich LLP
- Priority: DE102011017712 20110428
- International Application: PCT/EP2012/053321 WO 20120228
- International Announcement: WO2012/146412 WO 20121101
- Main IPC: G05B9/02
- IPC: G05B9/02 ; H02M1/32 ; B60L3/00 ; B60L3/04 ; B60L11/18 ; H02M1/38 ; H02P3/02

Abstract:
The invention relates to a control device (12) for actuating a pulse-controlled converter of an electric drive system, having: an open-loop/closed-loop control circuit (12a) which is configured to generate pulse-width-modulated actuation signals for switching devices of the pulse-controlled converter; a fault logic circuit (12b) which can detect fault states in the drive system and which is configured to select a switching state or a sequence of switching states for the switching devices of the pulse-controlled converter which are assigned to the corresponding fault state; and a protection circuit (12c) which is embodied in hardware and which comprises a signal delay device (15), which is configured to delay the actuation signals in order to implement a minimum protection time, and a locking device (16a, 16b) which is configured to lock two complementary switching devices of a bridge branch of the pulse-controlled converter with respect to one another.
Public/Granted literature
- US20140062368A1 METHOD AND CONTROL DEVICE FOR PROTECTION TIME SETTING IN AN ELECTRIC DRIVE SYSTEM Public/Granted day:2014-03-06
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