Method and apparatus for automatic allocation of a motor sensor to a power section within an electrical drive system
First Claim
1. A method for an automatic allocation of a motor sensor to a power section in wiring for an electrical drive system which has a closed loop formed from a control unit, the power section, a motor and the motor sensor, the method comprising transmitting a feature from the control unit via the power section, causing the feature to be passed back to the control unit via the closed loop, and comparing in the control unit a control loop structure with the wiring.
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Accused Products
Abstract
In a control loop comprising a motor, a power section, a motor sensor and a control unit, an electrical circuit is also closed by producing an electrical connection between the motor and the motor sensor. Safe electrical isolation in such a control loop is preferably overcome by means of parasitic capacitances. The control unit transmits a feature, preferably via the power section, which feature is passed to the control unit once again from the other direction. This feature need not be an identity in the sense of a number, and a pulse which can be identified uniquely is sufficient. This allows a technically very effective implementation of a comparison of the control loop structure with the actual wiring, by the control unit evaluating the motor sensor to determine whether the pulse has occurred.
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Citations
14 Claims
- 1. A method for an automatic allocation of a motor sensor to a power section in wiring for an electrical drive system which has a closed loop formed from a control unit, the power section, a motor and the motor sensor, the method comprising transmitting a feature from the control unit via the power section, causing the feature to be passed back to the control unit via the closed loop, and comparing in the control unit a control loop structure with the wiring.
- 9. A method for an automatic allocation of a motor sensor to a power section in wiring for an electrical drive system which has a closed loop formed from a control unit, the power section, a motor and the motor sensor, the method comprising transmitting a feature from the control unit via the motor sensor, causing the feature to be passed back to the control unit via the closed loop and comparing in the control unit a control loop structure with the wiring.
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14. An electrical drive system comprising a motor, a power section, a control unit and a motor sensor connected by wiring to form a closed loop, wherein a feature is transmitted by the control unit in one direction of the closed loop and can be detected from another direction, whereby a control loop structure of the drive system can be compared with the wiring.
Specification