Internal-combustion engines – Starting device – Condition responsive control of starting device
Reexamination Certificate
2007-01-02
2007-01-02
Cronin, Stephen K. (Department: 3747)
Internal-combustion engines
Starting device
Condition responsive control of starting device
C290S03800C
Reexamination Certificate
active
10507462
ABSTRACT:
A starting device for an internal combustion engine includes a switching control device for controlling a starter motor. At least one power switching module connects the starter motor to a voltage source and is activated via an assigned control line. A control electronics is provided for controlling the at least one power switching module. A release device which records the power flow of the internal combustion engine makes available, as a function of the running of the internal combustion engine, a release signal for the release of the activating switching procedure by the at least one control line. The release device includes a first release switching channel that works independently of the control electronics and a second release switching channel that cooperates with control electronics. These are set up in such a way that an initiation of the activating switching procedure takes place only during the simultaneous release switching setting of the two release switching channels. A diagnosis device of the switching control device, at the ending of making available the release signal for the activating switching procedure by the release device, records the release switching setting of the first release switching channel. This makes possible the monitoring of the function of the first release switching channel, which increases the safety of the starting procedure. A method utilizing the components described for starting an internal combustion engine is also described.
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Castro Arnold
Cronin Stephen K.
Robert & Bosch GmbH
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