20-09-2018 дата публикации
Номер: US20180269813A1
Автор:
Benedikt DREMEL,
Michael MORGENROTH,
Benedikt NAGLER,
DREMEL BENEDIKT,
MORGENROTH MICHAEL,
NAGLER BENEDIKT,
DREMEL, Benedikt,
MORGENROTH, Michael,
NAGLER, Benedikt
A brushless electric motor of a motor vehicle, in particular an ancillary unit, including a first phase winding, which is connected in series to a first semiconductor switch, and including a second phase winding, which is connected in series to a second semiconductor switch. The brushless electric motor includes a test circuit, which is connected in parallel to the first semiconductor switch and the second semiconductor switch. A method is also provided for operating a brushless electric motor, and also provided is a drive train actuator of a motor vehicle. 1. A brushless electric motor of a motor vehicle or an ancillary unit , the electric motor comprising:a first phase winding connected in series to a first semiconductor switch;a second phase winding connected in series to a second semiconductor switch; anda test circuit connected in parallel to the first semiconductor switch and the second semiconductor switch.2. The brushless electric motor according to claim 1 , wherein the first semiconductor switch and the second semiconductor switch are fed back to a shared reference potential or to ground.3. The brushless electric motor according to claim 1 , further comprising a third phase winding connected in series to a third semiconductor switch claim 1 , the test circuit being connected in parallel to the third semiconductor switch.4. The brushless electric motor according to claim 1 , wherein the test circuit includes a first branch having a fourth semiconductor switch and a second branch fed back to the first branch claim 1 , wherein the electric motor further comprises a fifth semiconductor switch and a detection circuit claim 1 , the first semiconductor switch being bridged with the aid of the first branch and the detection circuit claim 1 , and the second semiconductor switch being bridged with the aid of the second branch and the detection circuit.5. The brushless electric motor according to claim 4 , wherein the detection circuit includes an operational ...
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