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US 4,289,997 AGranted
Drive apparatus having at least two electric motors
AssigneeKeiper Automobiltechnik GmbH & Co. KG
InventorsBernhard Jung, Michael Teichmann
Life of this patent
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Abstract
A drive apparatus has at least two electric motors. There is also a central control common to all motors which lie in series in a closed-circuit energy supply. Each motor has an individual control unit which can be turned on and off from the central control via a control line by an address. Each motor also contains a short-circuit device lying in parallel with its connecting terminals.
Claims10
Drive apparatus, having a plurality of electric motors and a central control common to the plurality of motors, from which central control each motor can be turned on and off, comprising:
- said plurality of motors lies in series in closed-circuit energy supply;
- each of said plurality of motors has a control unit which can be turned on from the central control via a control line common to said plurality of motors by an address;
- and
- each of said plurality of control units contains a short-circuit device connected in parallel with its connecting terminals.
1 more element
Dependencies are inferred from the claim text.