Starter device for an internal combustion engine having separate engaging process and starting process
First Claim
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1. A device for starting an internal combustion engine of a motor vehicle, comprising:
- a starter motor;
an engaging device including an actuator for engaging a pinion driven by the starter motor;
a ring gear configured to be selectively engaged with the pinion; and
a control unit configured to activate a first switching output stage associated with the actuator and a second switching output stage associated with the starter motor;
wherein;
the actuator and the starter motor are activated separately by the control unit, and in a clocked manner, by use of a selectively adjusted current to engage the pinion with the ring gear; and
the control unit activates the actuator in such a way that the actuator is brought into an engaged position during a coasting operation of the internal combustion engine.
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Abstract
A device for starting an internal combustion engine of a motor vehicle includes a starter motor having an actuator for engaging a pinion, drivable by the starter motor, with a ring gear, and a control unit which activates a switching output stage associated with the actuator and a switching output stage associated with the starter motor. The starting time of the internal combustion engine is substantially reduced by providing the starter device with a control unit.
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Citations
17 Claims
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1. A device for starting an internal combustion engine of a motor vehicle, comprising:
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a starter motor; an engaging device including an actuator for engaging a pinion driven by the starter motor; a ring gear configured to be selectively engaged with the pinion; and a control unit configured to activate a first switching output stage associated with the actuator and a second switching output stage associated with the starter motor; wherein; the actuator and the starter motor are activated separately by the control unit, and in a clocked manner, by use of a selectively adjusted current to engage the pinion with the ring gear; and the control unit activates the actuator in such a way that the actuator is brought into an engaged position during a coasting operation of the internal combustion engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A device for starting an internal combustion engine of a motor vehicle, comprising:
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a starter motor; an engaging device including an actuator for engaging a pinion driven by the starter motor; a ring gear configured to be selectively engaged with the pinion; and a control unit configured to activate a first switching output stage associated with the actuator and a second switching output stage associated with the starter motor; wherein; the actuator and the starter motor are activated separately by the control unit, and in a clocked manner, by use of a selectively adjusted current to engage the pinion with the ring gear; and the control unit is; connected to a further control device via a bus system; and configured to detect a malfunction via at least one of current measurements and voltage measurements at one of relay contacts and the first and second switching output stages by use of plausibility checks, and communicate the detected malfunction via the bus system. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification