Control circuit for an actuator
OwnerStephan Bolzinventor
Life of this patent
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Abstract
A control circuit for an actuator (1, 1.1, 1.2), in particular for an electromagnetic actuator for an injector of an injection system for an internal combustion engine, having a power supply (Vbat) and a first switching element (Q1), which is connected to the actuator (1, 1.1, 1.2) and to the power supply (Vbat), for switching the actuator (1, 1.1, 1.2) on or off, with the first switching element (Q1) being driven by a control signal (Vin), and having an energy storage element (C1), which is connected to the actuator (1, 1.1, 1.2), for temporary storage of at least a part of the energy which is stored in the actuator (1, 1.1, 1.2), while switching off the actuator (1, 1.1, 1.2) or for feeding back at least a part of the temporarily stored energy while the actuator (1, 1.1, 1.2) is once again switched on.
Claims20
A control circuit for an actuator for an injector of an injection system for an internal combustion engine, comprising:
- a power supply,
- a first switching element, which is connected to the actuator and to the power supply, for switching the actuator on or off, with the first switching element being driven by a control signal, and
- an energy storage element, which is connected to the actuator, for temporary storage of at least a part of the energy which is stored in the actuator, while switching off the actuator and for feeding back at least a part of the temporarily stored energy while the actuator is once again switched on.
A control circuit for an electromagnetic actuator for an injector of an injection system for an internal combustion engine, comprising:
- a power supply,
- a first switching element, which is connected to the actuator and to the power supply, for switching the actuator on or off, with the first switching element being driven by a control signal, and
- an energy storage element, which is connected to the actuator, for temporary storage of at least a part of the energy which is stored in the actuator, while switching off the actuator and for feeding back at least a part of the temporarily stored energy while the actuator is once again switched on.
Dependencies are inferred from the claim text.