Circuit configuration for a starting device
AssigneeRobert Bosch GmbH
InventorsBalasubramaniam Venkatasubramaniam, Sven Hartmann, Stefan Tumback, Falco Sengebusch, Roman Pirsch
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Abstract
A circuit configuration for an electric machine, e.g., a starter motor for starting an internal combustion engine in a motor vehicle, includes a current limiting device for limiting a starting current of the electric machine. The circuit configuration includes a bridging device for bridging the current limiting device.
Claims24
A circuit configuration for a starter motor for starting an internal combustion engine in a motor vehicle, comprising:
- a current limiting device to limit a starting current of the starter motor;
- and
- a bridging device for bridging the current limiting device;
- wherein the bridging device includes a switching relay and a resistor,
- wherein an internal resistance of the switching relay coil and the resistor form a voltage divider for a voltage dropping across the starter motor, and
- wherein the bridging device is positively control able by the voltage dropping across the starter motor in such a way that the current limiting device is bridged beginning at a certain rotational speed.
A circuit configuration for a starter motor for starting an internal combustion engine in a motor vehicle, comprising:
- a current limiting device to limit a starting current of the starter motor;
- and
- a bridging device to bridge the current limiting device, wherein the bridging device is switched by a voltage drop across the starter motor.
A method for operating a circuit configuration for a starter motor for starting an internal combustion engine in a motor vehicle, the circuit configuration including a current limiting device for limiting a starting current of the starter motor and a bridging device, the method comprising:
- bridging, upon startup of the starter motor, the current limiting device by the bridging device at a temperature below a temperature limiting value.
Dependencies are inferred from the claim text.